CN109125957B - Unlocking device for radiotherapy body frame plate and body frame plate with unlocking function - Google Patents
Unlocking device for radiotherapy body frame plate and body frame plate with unlocking function Download PDFInfo
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- CN109125957B CN109125957B CN201811141972.7A CN201811141972A CN109125957B CN 109125957 B CN109125957 B CN 109125957B CN 201811141972 A CN201811141972 A CN 201811141972A CN 109125957 B CN109125957 B CN 109125957B
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 26
- 229920001169 thermoplastic Polymers 0.000 claims description 20
- 239000004416 thermosoftening plastic Substances 0.000 claims description 20
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000008673 vomiting Effects 0.000 description 9
- 210000004916 vomit Anatomy 0.000 description 8
- 229920000049 Carbon (fiber) Polymers 0.000 description 7
- 239000004917 carbon fiber Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002872 contrast media Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 206010047700 Vomiting Diseases 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 238000002591 computed tomography Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241001397809 Hakea leucoptera Species 0.000 description 1
- 206010035669 Pneumonia aspiration Diseases 0.000 description 1
- 201000009807 aspiration pneumonia Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1092—Details
- A61N2005/1097—Means for immobilizing the patient
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention relates to an unlocking device for a radiotherapy body frame plate and the body frame plate with an unlocking function, wherein the unlocking device is used for ejecting a bolt locked in a positioning hole of the body frame plate under the triggering of a patient to realize the unlocking function; the unlocking device and the body frame plate provided by the invention have the advantages of compact structure, convenience in use, unlocking function and automatic resetting function, and can enable a patient fixed on the body frame plate to finish unlocking by himself in emergency, thereby effectively solving the defects in the prior art.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an unlocking device for a radiotherapy body frame plate and the body frame plate with an unlocking function.
Background
Radiotherapy, abbreviated as radiotherapy, is one of the main means for treating malignant tumors at present, and about 2/3 of malignant tumor patients need to receive radiotherapy; the current whole domestic radiotherapy enters an accurate treatment stage, and accurate radiotherapy is completed based on images generated by radiotherapy positioning CT scanning; the radiotherapy positioning CT is to collect the body image of the patient under a unified coordinate system, the doctor delineates the tumor target area based on the image, then the physical engineer carries out the design of the radiotherapy plan, and the radiotherapy can be carried out after the radiotherapy plan passes verification; in radiotherapy, maintaining a fixed patient position is critical to accurate treatment.
Currently, in hospitals, a set of fixation devices is typically used to fix a patient, the fixation devices comprising: thermoplastic film (or be called the locating film) and body frame board (or be called the locating plate), wherein, body frame board is a flat board, and body frame board's both sides edge is provided with a plurality of locating holes respectively, and thermoplastic film's both sides edge is provided with the strake respectively, be provided with the fixed orifices on the strake respectively corresponding the position department of locating hole, be provided with bolt and round pin cover in the fixed orifices respectively, the specific structure of bolt and round pin cover can see chinese patent: CN201611073892 or CN 201621293392; when the fixing device is used for fixing a patient, the body frame plate is required to be horizontally placed, then the patient is allowed to lie on the body frame plate, then the thermoplastic film is covered on the patient, the pin sleeves on the thermoplastic film are respectively placed in the corresponding positioning holes, finally, medical staff manually presses down the bolts, the lower ends of the bolts extend out of the pin sleeves, the pin sleeves are extruded and expanded, and therefore the side walls of the positioning holes are clamped, and the locking function is realized; after the use is finished, medical staff manually pulls out the bolts in the positioning holes, so that unlocking is finished, a patient can move, and the thermoplastic film can be detached from the frame plate; for patients needing radiotherapy, medical staff need to fix the patients by using the fixing device in the early stage of radiotherapy, such as thermoplastic film manufacturing, positioning CT scanning, position confirmation and the like, or in the process of receiving radiotherapy.
In the prior art, in order to better distinguish a tumor target region from surrounding tissues, it is generally necessary to perform a positioning enhancement scan using an iodine-containing CT contrast agent (commonly referred to as a contrast agent, which requires the patient to swallow before scanning) in order to more accurately delineate the target region; the common side effect of iodine-containing contrast agents is gastrointestinal reactions, and patients often have symptoms of nausea and vomiting; when the patient is not fixed by the thermoplastic film, the patient can vomit freely when vomit occurs, and the possibility of asphyxia is low; however, in the case where the thermoplastic film is fixed, the whole head, neck and chest of the patient are usually fixed on the frame plate by the thermoplastic film, and the patient cannot lean against the head or the gauge head, in this case, if the patient vomits, vomit cannot be removed, and the patient is extremely prone to suffocation, aspiration pneumonia and the like, and even death, and a great potential safety hazard exists.
Disclosure of Invention
In order to improve the defects existing in the prior art, the invention adopts the following technical scheme:
the unlocking device is used for ejecting a bolt locked in a positioning hole of the radiotherapy body frame plate under the triggering of a patient, so that an unlocking function is realized.
Preferably, the unlocking means is made of a non-metallic material.
Further, the unlocking device is made of carbon fiber materials.
Preferably, the unlocking device is used for ejecting the bolts at any side of the frame plate to realize single-side unlocking or ejecting the bolts at two sides of the frame plate to realize double-side unlocking when triggering.
Preferably, the unlocking device comprises an unlocking part, a transmission part and a triggering part, wherein the unlocking part is connected with the triggering part through the transmission part, the triggering part is used for triggering under the action of external force and generating triggering power, the transmission part is used for transmitting the triggering power, and the unlocking part is used for popping up a corresponding bolt under the action of the triggering power.
In a preferred scheme, the unlocking device comprises a top plate and a base, wherein a first chute and a plurality of second chutes are arranged in the base, the top plate is arranged above the base and used for sealing the first chute and the second chute, the top plate is provided with a plurality of lock holes, each lock hole is coaxial with each positioning hole on one side or two sides of the body frame plate respectively, and each lock hole corresponds to each second chute respectively; the second sliding grooves are parallel to each other, and the same end of each second sliding groove is communicated with the first sliding groove through a notch arranged on the base;
the unlocking part comprises a sliding block and a pin shaft, the sliding block is respectively arranged in the second sliding groove, one end of the pin shaft is arranged in the lock hole, and the other end of the pin shaft is contacted with the sliding block;
the trigger part comprises a crank-slide block mechanism and a handle, the crank-slide block mechanism comprises a crank and a control block arranged in the first chute, the control block is connected to the base through a spring, the spring is always in a stretching state, and the spring is used for resetting; the handle is arranged on the crank;
the transmission part is arranged in the notch, and each sliding block is connected with the control block through the transmission part;
the handle is used for triggering unlocking, the sliding block is used for sliding synchronously with the control block and upwards extruding the corresponding pin shaft, so that the pin shaft ejects a bolt locked in a positioning hole of the body frame plate, and single-side unlocking or double-side unlocking is realized.
Preferably, the lock hole is a stepped hole, the pin shaft is of a cylindrical structure, a retainer ring is arranged on the side face of the pin shaft, and the retainer ring is used for preventing the pin shaft from falling from the lock hole.
Preferably, the lower end of the pin shaft is of a hemispherical structure or an elliptic structure or a dished structure.
In a preferred embodiment, the upper surface of the slider includes a horizontal plane and an inclined plane, and the height of the inclined plane gradually increases along the direction from the horizontal plane to the inclined plane; the transmission part is connected to one end of the sliding block, which is close to the horizontal plane, and initially, each sliding block is respectively located at one end corresponding to the second sliding groove, the bottom of the pin shaft is in contact with the horizontal plane, the top of the pin shaft does not extend out of a corresponding lock hole, and when the sliding block is unlocked, each sliding block is respectively located at the other end corresponding to the second sliding groove, the bottom of the pin shaft is in contact with the inclined plane, and the distance that the pin shaft extends out of the corresponding lock hole is the largest. After unlocking, under the action of the spring, the sliding block automatically resets and returns to the initial position, and the corresponding pin shaft automatically falls under the action of gravity and stops on the horizontal plane of the sliding block, and finally returns to the initial position so as to facilitate the next unlocking operation.
Preferably, the inclined surface is an arc inclined surface.
Preferably, the transmission part is a connecting rod or a connecting sheet.
In a preferred embodiment, the slots include a plurality of transverse slots and a plurality of longitudinal slots, wherein the transverse slots are perpendicular to the length direction of the base, and the longitudinal slots are parallel to the length direction of the base; one end of each longitudinal slot is respectively connected with each second chute, the other end of each longitudinal slot is respectively connected with a transverse slot, and the transverse slot is connected with the first chute through the other longitudinal slot; the interfering longitudinal slots are connected to adjacent longitudinal slots by a transverse slot.
Preferably, the crank-slider mechanism further comprises a connecting rod, the control block comprises a first end and a second end, the spring and the transmission part are both connected to the second end, the first end is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to one end of the crank, and the other end of the crank is hinged to the base.
Preferably, the first sliding groove and the second sliding groove are both arranged along the length direction of the base.
Preferably, the top plate and the bottom plate are respectively identical to the frame plate in shape.
In one scheme, the crank is of a linear structure, the control block is positioned at one end of the first chute in the initial stage, the included angle between the connecting rod and the crank is smaller than 90 degrees, and the handle is vertically connected to one side of the crank positioned in the base; when the handle is pressed to the lowest position, the control block is positioned at the other end of the first sliding groove, and unlocking is completed.
In another scheme, the crank comprises a first rod and a second rod, one end of the first rod is connected with one end of the second rod and hinged to the base, an included angle between the first rod and the second rod is larger than 90 degrees, the other end of the second rod is hinged to the connecting rod, the handle is vertically connected to one side of the first rod, which is positioned in the base, and initially, the control block is positioned at one end of the first chute, and the connecting rod is collinear with the second rod; when the handle is pressed to the lowest position, the control block slides to the other end of the first sliding groove, and unlocking is completed.
The body frame plate with the unlocking function comprises the unlocking device, wherein the upper part of the lock hole is used for accommodating a bolt and a pin sleeve for fixing the thermoplastic film, and the lower part of the lock hole is used for accommodating one end of the pin shaft. At this time, for same lockhole, bolt and round pin axle are just coaxial, under locking state, the bolt passes through extrusion round pin cover chucking in the lockhole, and the round pin axle is in the below of bolt, and when the unblock, the slider can upwards extrude the round pin axle under the effect of external force for the round pin axle can ejecting the bolt of top, thereby effectively realizing the unblock.
Compared with the prior art, the unlocking device for the radiotherapy body frame plate and the body frame plate with the unlocking function provided by the invention have the following beneficial effects:
1. the unlocking device is compact in structure, convenient to use and capable of unlocking, and can automatically unlock a patient fixed on the body frame plate under an emergency condition, such as vomiting, thereby effectively solving the defects in the prior art.
2. The unlocking device can effectively realize the single-side unlocking or double-side unlocking function of the body frame plate in a triggering state.
3. The unlocking device has the automatic reset function, can realize continuous and repeated unlocking, does not need to carry out additional operation, and is very convenient to use.
4. The unlocking device can be detachably arranged below the body frame plate, and is more convenient to use in cooperation with the body frame plate.
5. The unlocking device is triggered to unlock by pressing the handle, so that a patient lying on the body frame plate and fixed on the body frame plate can unlock the unlocking device more conveniently, easily and in a labor-saving manner.
6. In the unlocking device, the control block and each sliding block can realize synchronous movement under the triggering condition, so that the unlocking device has good synchronism and high precision, and is favorable for better realizing the unlocking and resetting functions.
7. The body frame plate has compact structure, not only has unlocking function, but also has lower cost and safe and convenient use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Drawings
Fig. 1 is a schematic structural diagram of an unlocking device according to embodiment 1 of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural diagram of a base in an unlocking device according to embodiment 1 of the present invention.
Fig. 4 is a schematic diagram of a partial structure of a base in an unlocking device according to embodiment 1 of the present invention.
Fig. 5 is a schematic diagram of a partial structure of a crank-slider mechanism in an unlocking device according to embodiment 1 of the present invention.
Fig. 6 is a schematic diagram of the position of the crank-slider mechanism in the initial (or before unlocking) state of the unlocking device according to embodiment 1 of the present invention.
Fig. 7 is a schematic structural diagram of a pin in an unlocking device according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural diagram of a slider in an unlocking device according to embodiment 1 of the present invention.
Fig. 9 is a schematic diagram of the positions of the slider and the corresponding pin in the unlocking device provided in embodiment 1 of the present invention at the initial time (or before unlocking).
Fig. 10 is a schematic diagram of the positions of a slider and a corresponding pin during unlocking of the unlocking device provided in embodiment 1 of the present invention.
Fig. 11 is a schematic view showing the setting of the body frame plate on the unlocking device before actual use.
Fig. 12 is a schematic structural diagram of an unlocking device according to embodiment 2 of the present invention.
Fig. 13 is a schematic view of a partial structure of a base in an unlocking device according to embodiment 2 of the present invention.
Fig. 14 is a schematic structural diagram of an unlocking device according to embodiment 3 of the present invention.
Fig. 15 is a schematic diagram of the position of the crank-slider mechanism in the initial (or before unlocking) state of the unlocking device according to embodiment 3 of the present invention.
Fig. 16 is a schematic diagram of the position of the crank-slider mechanism when the unlocking device provided in embodiment 3 of the present invention is unlocked.
Fig. 17 is a schematic partial structure of a body frame plate with an unlocking function according to embodiment 4 of the present invention.
Description of the drawings
Unlocking means 101, body frame plate 102, positioning holes 103,
top plate 201, locking hole 202, pin 203, opening 204, positioning plate 205,
base 301, crank-slide mechanism 302, transmission 303, first runner 304, second runner 305, notch 306, slide 307, handle 308, recess 309, spring 310,
the length of the longitudinal slot 401, the transverse slot 402,
crank 501, control block 502, connecting rod 503, cylindrical shaft 504, first end 505, second end 506, rod one 507, rod two 508,
the retainer ring 601, the hemispherical structure 602,
horizontal plane 701, inclined plane 702.
Detailed Description
The invention provides an unlocking device for a radiotherapy body frame plate, which is made of a nonmetallic material, namely the unlocking device does not involve a metallic material, so that the influence on radiotherapy rays in the radiotherapy process is avoided; in practice, the unlocking device can be detachably arranged below the body frame plate before the patient is fixed by the existing body frame plate and radiotherapy is carried out, so as to support the body frame plate; meanwhile, under the condition that a patient is fixed by a fixing device (namely, the patient is fixed between the thermoplastic film and the body frame plate and the thermoplastic film and the body frame plate are locked by using the bolts), when the patient vomits, the patient can manually trigger the unlocking device, and after the unlocking device is triggered, the bolts locked in the positioning holes of the body frame plate can be ejected (or called ejection) by the unlocking device, so that the thermoplastic film can be separated from the body frame plate, the unlocking function can be effectively realized, the patient can vomits freely, and the defects in the prior art can be effectively overcome.
As described in the background, in the prior art, in the commonly used frame plate, the positioning holes are respectively arranged at the edges of two sides of the frame plate, the fixing holes on the thermoplastic film are also respectively arranged at the edges of the thermoplastic film, and the fixing holes are in one-to-one correspondence with the positioning holes; when the fixing is carried out, a patient needs to lie on the frame plate, then the thermoplastic film is covered on the patient, and the thermoplastic film is locked on the frame plate by inserting bolts into the fixing holes and the positioning holes at the two sides of the frame plate respectively, so that the effective fixing of the patient is realized; therefore, when the unlocking device is used for unlocking, the unlocking device adopts two feasible schemes, namely: under the triggering condition, the unlocking device ejects the bolt on any side of the body frame plate to realize single-side unlocking, so that a patient can freely vomit from the unlocked side; scheme II: under the triggering condition, the unlocking device ejects the bolts at two sides of the body frame plate (namely ejects all the bolts), so that double-side unlocking is realized, at the moment, the thermoplastic film can be completely separated from the body frame plate, and a patient can freely vomit from any side of the body frame plate.
In addition, in the preferred scheme, the unlocking device can be made of a nonmetallic material with low density and high strength, such as a carbon fiber material, a synthetic carbon fiber material, synthetic plastics and the like, so that the obstruction to treatment rays is reduced as much as possible, for example, relevant parts of the unlocking device can be made of the carbon fiber material, and because the commonly used body frame plates are made of the carbon fiber material in the prior art, the strength of the carbon fiber material is high, and the influence on radiation treatment rays is small, and therefore, the unlocking device is made of the carbon fiber material, which is more beneficial to radiation treatment.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Example 1
The embodiment provides an unlocking device for a radiotherapy body frame plate, which comprises an unlocking part, a transmission part and a triggering part, wherein the unlocking part is connected with the triggering part through the transmission part, and the triggering part is used for triggering under the action of external force and generating triggering power; the transmission part is used for transmitting the triggering power; the unlocking part is used for ejecting the corresponding bolt under the action of touching power.
In this embodiment, the unlocking device 101 may eject the latch on any side of the body frame plate 102 under the triggering condition, so as to realize one-side unlocking;
as shown in fig. 1, 2, 3 and 4, specifically, in this embodiment, the unlocking device 101 includes a top plate 201 and a base 301, a first chute 304 and a plurality of second chutes 305 are provided in the base 301, the unlocking portion includes a slider 307 and a pin 203, the triggering portion includes a crank-slider mechanism 302 and a handle 308, wherein,
in the present embodiment, the second sliding grooves 305 are parallel to each other, and the same end of each second sliding groove 305 is respectively communicated with the first sliding groove 304 through the notch 306 provided in the base 301; the second sliding grooves 305 are respectively provided with sliding blocks 307; as shown in fig. 5, in the present embodiment, the first sliding groove 304 and the second sliding groove 305 are both disposed along the length direction of the base 301 (the length direction of the base 301 is the length direction of the patient lying on the frame plate 102), and the dimensions (including length, width, and height) of each second sliding groove 305 are the same, and the dimensions of the sliding blocks 307 in each second sliding groove 305 are also the same, and when each sliding block 307 moves along the length direction of the sliding block 307, each sliding block 307 moves along the length direction of the base 301;
in this embodiment, the crank-slider mechanism 302 includes a crank 501 and a control block 502 disposed in the first chute 304 (in this embodiment, in order to distinguish the slider in the crank-slider mechanism 302 from the aforementioned slider 307, the slider in the crank-slider mechanism 302 is referred to as the control block 502, the crank 501 in the crank-slider mechanism 302 is indirectly connected to the control block 502), the handle 308 is disposed on the crank 501, and the handle 308 is used to trigger unlocking; each sliding block 307 is respectively connected with the control block 502 through the transmission part 303 arranged in the notch 306, the control block 502 is connected with the base 301 through the spring 310, and the spring 310 is always in a stretching state, namely, the spring 310 is always in a stretching state in an initial state (namely, under the condition of no triggering) or in a triggering state, so that the spring 310 can play a good resetting effect; in this embodiment, the crank-slider mechanism 302 is configured to convert the rotation of the crank 501 into the linear movement of the control block 502, and the linear movement of the control block 502 can drive each slider 307 to move linearly in the corresponding second chute 305, so as to ensure smooth unlocking;
in this embodiment, the transmission portion 303 adopts a connecting rod or a connecting sheet, and the connecting rod or the connecting sheet has a certain rigidity, and is not deformed in the use process, so that synchronous transmission is facilitated, that is, when a patient pulls a handle (that is, when triggering), the control blocks 502 slide along the first sliding grooves 304, and meanwhile, the sliding blocks 307 in the second sliding grooves 305 can slide along the control blocks 502 together, and the sliding distances are the same, so that synchronous sliding is effectively realized, synchronous unlocking of a plurality of bolts is realized, and synchronous reset is realized after unlocking is completed, so that unlocking is realized for the next time, so that the unlocking device 101 can continuously realize the unlocking function, and the gaps between two adjacent unlocking operations do not need to be subjected to additional operation, so that the unlocking device is very convenient to use; as shown in fig. 4, 5 and 6, in the present embodiment, initially, under the action of the elastic force (restoring force) of the spring 310, the control block 502 is pressed against one end of the first chute 304, and simultaneously, the sliding blocks 307 in the second chute 305 are synchronously pressed against one end of the corresponding second chute 305; in this embodiment, the spring 310 is also a non-metal spring 310, for example, a plastic spring 310, such as a SPEC plastic spring 310, and the like, and will not be described herein.
In this embodiment, the top plate 201 is disposed above the base 301, where the top plate 201 is used to close the first chute 304 and the second chute 305, so that the control block 502 and each sliding block 307 can slide in the closed chute, which is beneficial to improving accuracy; a plurality of lock holes 202 are arranged on the top plate 201, one end of a pin shaft 203 is arranged in the lock hole 202, the other end of the pin shaft 203 is in contact with a sliding block 307, when the unlocking device 101 is arranged below the body frame plate 102, each lock hole 202 on the top plate 201 is coaxial with (i.e. corresponds to one by one with the positioning holes 103 of the body frame plate 102, and each lock hole 202 corresponds to each second sliding groove 305 in the base 301; in the actual use process, when the patient rotates the handle 308 to unlock (or triggers the unlocking), the handle 308 rotates to drive the crank 501 to rotate, the crank 501 drives the control block 502 to slide along the direction away from the spring 310, the sliding of the control block 502 can synchronously drive each sliding block 307 to slide along the corresponding second sliding groove 305 (i.e. the sliding blocks 307 and the control block 502 synchronously slide), and in the sliding process of the sliding blocks 307, each sliding block 307 upwards extrudes the corresponding pin 203, so that the pin 203 gradually ejects the bolt locked in the positioning hole 103 of the body frame plate 102, thereby realizing the unlocking function; after unlocking is completed, after the patient releases the handle, under the action of the restoring force of the spring 310, the control block 502 and each sliding block 307 return to the initial positions again, as shown in fig. 4, 5 or 6, so as to unlock the device next time;
in this embodiment, the top plate 201 is detachably disposed on the base 301, for example, the top plate 201 may be fixed on the base 301 by, for example, a dry nonmetallic screw or a bolt, so as to facilitate disassembly, and at the same time, facilitate assembly and maintenance of the interior of the base 301.
In this embodiment, the "initial time" and the "initial state" are not described herein before the handle 308 is not triggered to unlock.
In this embodiment, the crank-slider mechanism 302 further includes a connecting rod 503, the control block 502 includes a first end 505 and a second end 506, wherein the spring 310 and the transmission portion 303 are both connected to the second end 506 of the control block 502, the first end 505 of the control block 502 is hinged to one end of the connecting rod 503, the other end of the connecting rod 503 is hinged to one end of the crank 501, and the crank 501 is hinged to the base 301; as shown in fig. 5 or fig. 6, in this embodiment, the crank 501 and the connecting rod 503 are both disposed in the groove 309 connected to the first chute 304, one end of the crank 501 and the second end 506 of the control block 502 are respectively provided with a cylindrical shaft, two ends of the connecting rod 503 are respectively provided with a sleeve, and the two ends of the connecting rod 503 are hinged by the cooperation of the sleeve and the cylindrical shaft; in addition, a cylindrical shaft 504 is arranged in the groove 309 of the base 301, a sleeve is arranged on the crank 501, and a hinged joint is formed by matching the sleeve and the cylindrical shaft, so that the crank 501 is hinged to the base 301, and the crank 501 can rotate around the hinged joint under the action of external force;
in a preferred embodiment provided in this embodiment, the crank 501 in the crank-slider mechanism 302 is a straight-line structure; under the restoring force of the spring 310, initially, as shown in fig. 5 or fig. 6, the control block 502 is located at one end of the first chute 304, and the included angle between the connecting rod 503 and the crank 501 is smaller than 90 degrees, the handle 308 is vertically connected to one side (as shown in fig. 1 or fig. 2) of the crank 501 located inside the base 301, so that a patient lying on and fixed on the body frame plate 102 can conveniently hold the handle 308 by hand, so as to trigger unlocking at any time; when the patient triggers unlocking, the patient only needs to press the handle 308 to the lowest position by hand, as shown by the arrow curve in fig. 6, at this time, the control block 502 slides to the other end of the first chute 304, as shown by the arrow straight line in fig. 6, and at the same time, due to the movement of the control block 502, each slide block 307 is driven to complete unlocking.
In this embodiment, the unlocking is triggered by pressing the handle 308, which is more convenient for the patient lying down, and meanwhile, the arm movement of the patient after fixing is also greatly limited, so that the triggering mode of pressing is the most handy and labor-saving triggering mode in the actual use process.
As shown in fig. 8, in the present embodiment, the upper surface of the slider 307 includes a horizontal plane 701 and an inclined plane 702, and the height of the inclined plane 702 gradually increases in the direction from the horizontal plane 701 to the inclined plane 702; the transmission part 303 is connected to one end of the sliding block 307, which is close to the horizontal plane 701; as shown in fig. 9, initially, each slider 307 is located at one end of the corresponding second chute 305, and the bottom of the pin 203 contacts the horizontal plane 701, and the top of the pin 203 does not extend out of the corresponding lock hole 202; when unlocking, under the action of external force, each sliding block 307 moves synchronously to the other end, and finally, each sliding block 307 is positioned at the other end corresponding to the second sliding groove 305, as shown in fig. 10, at this time, the bottom of the pin 203 contacts with the inclined surface 702, and the distance that the pin 203 extends out of the corresponding lock hole 202 is the largest, so that the upper bolt can be effectively ejected out; after unlocking, under the action of the spring 310, the slider 307 automatically resets to the original position, and the corresponding pin 203 automatically falls under the action of gravity and stops on the horizontal plane 701 of the slider 307, and finally returns to the original position for the next unlocking operation.
In a preferred embodiment, the inclined surface 702 of the slider 307 may be an arcuate inclined surface.
In this embodiment, the lock hole 202 is a stepped hole, the pin 203 is in a cylindrical structure, as shown in fig. 7, and a retainer ring 601 is disposed on a side surface of the pin 203, where the retainer ring 601 is used to prevent the pin 203 from falling from the lock hole 202; for example, in the present embodiment, as shown in fig. 9 or 10, the maximum diameter of the retainer ring 601 is larger than the minimum diameter of the lock hole 202 so that the pin 203 does not fall out from above the lock hole 202 when moved to the highest position.
Preferably, the lower end of the pin 203 is a hemispherical structure 602 or an elliptical structure or a disc structure, as shown in fig. 7, 9 or 10; so as to better match with the sliding block 307, so that collision between the sliding block 307 and the pin shaft 203 can be effectively reduced when the sliding block 307 drives the pin shaft 203, and the unlocking process is more round and smooth.
The distribution of the notches 306 on the base 301 may depend on the position of the actual second sliding groove 305, and as shown in fig. 3 and fig. 4, the notches 306 connected with different second sliding grooves 305 may not interfere with each other, and in a preferred solution provided in this embodiment, the notches 306 include a plurality of transverse notches 402 and a plurality of longitudinal notches 401, where the transverse notches 402 are perpendicular to the length direction of the base 301, and the longitudinal notches 401 are parallel to the length direction of the base 301; one end of each longitudinal slot 401 is respectively connected with each second chute 305, the other end is respectively connected with a transverse slot 402, and the transverse slot 402 is connected with the first chute 304 through the other longitudinal slot 401; since the second sliding grooves 305 need to correspond to the positions of the positioning holes 103, when the distance between two adjacent second sliding grooves 305 is relatively short, one second sliding groove 305 easily interferes with the other second sliding groove 305, so that the longitudinal notch 401 with interference can be connected to the adjacent longitudinal notch 401 through a transverse notch 402, thereby effectively avoiding interference.
In the present embodiment, the width of the longitudinal slot 401 is smaller than the width of the first chute 304 and the second chute 305, and the width of the transverse slot 402 is greater than or equal to the sum of the length of the first chute 304 minus the length of the control block 502 and the width of the transmission portion 303, so that the transverse slot 402 does not affect the unlocking process.
As shown in fig. 11, in a preferred embodiment, the top plate 201 and the bottom plate have the same shape as the frame plate 102, respectively, so as to facilitate the cooperation with the frame plate 102 in the actual use process.
In a further aspect, the top plate 201 is provided with an opening 204 at a position corresponding to the crank-slider mechanism 302, as shown in fig. 1 or fig. 2, to facilitate the operation of the crank-slider mechanism 302; as shown in fig. 11, a plurality of positioning plates 205 are provided on the top plate 201, and the positioning plates 205 are used for positioning the mounting of the body frame plate 102, so that when the unlocking device 101 is used, the body frame plate 102 is placed on the top plate 201 through the positioning plates 205, and at this time, the lock holes 202 on the top plate 201 respectively correspond to the positioning holes 103 on the body frame plate 102 one by one, so that unlocking is facilitated.
Example 2
The main difference between the embodiment 2 and the embodiment 1 is that the unlocking device 101 for the radiotherapy rack plate 102 provided in the embodiment can eject the pins on two sides of the rack plate 102 to realize double-side unlocking under the triggering condition;
as shown in fig. 12, in this embodiment, on the basis of embodiment 1, lock holes 202 are provided on the top plate 201 corresponding to all positioning holes 103 on both sides of the body frame plate 102, and pin shafts 203 are respectively provided in the lock holes 202; the positions of the base 301 corresponding to all the lock holes 202 are provided with second sliding grooves 305, as shown in fig. 13, all the second sliding grooves 305 are respectively communicated with the first sliding grooves 304 through notches 306, each second sliding groove 305 is respectively provided with a sliding block 307, and each sliding block 307 is connected with a control block 502 in the first sliding groove 304 through a transmission part 303 to realize synchronous movement; when the unlocking device 101 is used, a patient can drive the control block 502 to move along the first sliding groove 304 by pressing the handle 308, so that the sliding blocks 307 are driven to synchronously move along the corresponding second sliding groove 305, and in the moving process, the corresponding pin shafts 203 are ejected out of the locking holes 202, so that the pins locked in the positioning holes 103 of the body frame plate 102 above the pins are ejected out to complete unlocking, and after the patient releases the handle 308, the control block 502, the sliding blocks 307 and the pin shafts 203 return to the initial positions respectively, so that the unlocking is performed next time.
Example 3
The main difference between this embodiment 3 and the above-mentioned embodiment 1 or embodiment 2 is that, in the unlocking device 101 for a radiotherapy gantry plate 102 provided in this embodiment, the crank 501 includes a first rod 507 and a second rod 508, as shown in fig. 14, one end of the first rod 507 is connected to one end of the second rod 508, and the connection is hinged to the base 301; the included angle between the first rod 507 and the second rod 508 is larger than 90 degrees, the other end of the second rod 508 is hinged with the connecting rod 503, the first rod 507 can extend out of the base 301, the handle 308 is vertically connected with one side of the first rod 507 positioned in the base 301, so that a patient lying on and fixed on the body frame plate 102 can conveniently hold the handle 308 by hand, and unlocking can be triggered at any time; as shown in fig. 15, initially, the control block 502 is at one end of the first chute 304, and the link 503 is collinear with the second rod 508 and is simultaneously received in the recess 309; when the patient triggers unlocking, the patient only needs to press the handle 308 to the lowest position by hand, and when the handle 308 is pressed to the lowest position, the control block 502 slides to the other end of the first chute 304, as shown in fig. 16, and at the same time, due to the movement of the control block 502, the sliding blocks 307 are driven to complete unlocking.
Example 4
In this embodiment, there is provided a body frame plate with an unlocking function, including the unlocking device 101 in embodiment 1 or 2 or 3, in this embodiment, the top plate 201 is thicker, as shown in fig. 17, so that the upper portion of the lock hole 202 can be used to accommodate a latch and a pin bush for fixing the thermoplastic film, that is, it is equivalent to a positioning hole on the body frame plate in the prior art; the lower part of the lock hole 202 is used for accommodating one end of the pin 203; at this time, for the same lock hole, the latch and the pin 203 are just coaxial, and in the locked state, the latch is clamped in the lock hole 202 by extruding the pin sleeve, and the pin 203 is positioned below the latch; when unlocking, the sliding block 307 can upwards extrude the pin shaft 203 under the action of external force, so that the pin shaft 203 can eject the bolt above, thereby effectively realizing the unlocking function and enabling the body frame plate to be a body frame plate with the unlocking function.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (8)
1. The unlocking device for the radiotherapy body frame plate is characterized in that the unlocking device is used for ejecting a bolt locked in a body frame plate positioning hole under the triggering of a patient to realize an unlocking function;
the unlocking device comprises a top plate, a base, an unlocking part, a transmission part and a triggering part, wherein the unlocking part is connected with the triggering part through the transmission part, the triggering part is used for triggering under the action of external force and generating triggering power, the transmission part is used for transmitting the triggering power, and the unlocking part is used for ejecting a corresponding plug pin under the action of the triggering power;
the base is internally provided with a first chute and a plurality of second chutes, the top plate is arranged above the base and used for sealing the first chute and the second chutes, the top plate is provided with a plurality of lock holes, each lock hole is coaxial with each positioning hole on one side or two sides of the body frame plate respectively, each lock hole corresponds to each second chute respectively, and the top plate is provided with a plurality of positioning plates which are used for positioning the installation of the body frame plate; the second sliding grooves are parallel to each other, and the same end of each second sliding groove is communicated with the first sliding groove through a notch arranged on the base;
the unlocking part comprises a sliding block and a pin shaft, the sliding block is respectively arranged in the second sliding groove, one end of the pin shaft is arranged in the lock hole, and the other end of the pin shaft is contacted with the sliding block;
the trigger part comprises a crank-slide block mechanism and a handle, the crank-slide block mechanism comprises a crank and a control block arranged in the first chute, the control block is connected to the base through a spring, the spring is always in a stretching state, and the spring is used for resetting; the handle is arranged on the crank;
the transmission part is arranged in the notch, and each sliding block is connected with the control block through the transmission part;
the handle is used for triggering unlocking, the sliding block is used for sliding synchronously with the control block, and the corresponding pin shaft is extruded upwards, so that the pin shaft ejects a bolt locked in a positioning hole of the body frame plate, and single-side unlocking or double-side unlocking is realized.
2. The unlocking device for a radiotherapy gantry plate according to claim 1, wherein the unlocking device is used for ejecting a latch on any side of the gantry plate to realize single-side unlocking or ejecting latches on two sides of the gantry plate to realize double-side unlocking when triggered.
3. The unlocking device for a radiotherapy body frame plate according to claim 1, wherein the lock hole is a stepped hole, the pin shaft is of a cylindrical structure, and a retainer ring is arranged on the side face of the pin shaft and used for preventing the pin shaft from falling out of the lock hole; the lower end of the pin shaft is of a hemispherical structure or an elliptic structure or a dished structure.
4. The unlocking device for a radiotherapy body frame plate according to claim 1, wherein the slider upper surface comprises a horizontal surface and an inclined surface, the height of the inclined surface gradually increasing along the direction from the horizontal surface to the inclined surface; the transmission part is connected to one end of the sliding block, which is close to the horizontal plane.
5. The unlocking apparatus for a radiotherapy body frame plate according to claim 1, wherein the slots comprise a number of transverse slots and a number of longitudinal slots, wherein the transverse slots are perpendicular to the length direction of the base, the longitudinal slots are parallel to the length direction of the base; one end of each longitudinal slot is respectively connected with each second chute, the other end of each longitudinal slot is respectively connected with a transverse slot, and the transverse slot is connected with the first chute through the other longitudinal slot; the interfering longitudinal slots are connected to adjacent longitudinal slots by a transverse slot.
6. The unlocking apparatus for a radiotherapy gantry according to claim 1, wherein the crank-slider mechanism further comprises a connecting rod, the control block comprises a first end and a second end, wherein the spring and the transmission portion are both connected to the second end, the first end is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to one end of the crank, and the other end of the crank is hinged to the base.
7. The unlocking device for a radiotherapy body frame plate according to claim 6, wherein the crank is of a linear structure, the control block is positioned at one end of the first chute initially, the included angle between the connecting rod and the crank is smaller than 90 degrees, and the handle is vertically connected to one side of the crank positioned in the base;
or, the crank comprises a first rod and a second rod, one end of the first rod is connected with one end of the second rod, the connecting part is hinged to the base, an included angle between the first rod and the second rod is larger than 90 degrees, the other end of the second rod is hinged to the connecting rod, and the handle is vertically connected to one side of the first rod, which is located inside the base.
8. A body frame plate with an unlocking function, characterized by comprising the unlocking device according to any one of claims 1-7, wherein the upper part of the locking hole is used for accommodating a bolt and a pin sleeve for fixing a thermoplastic film, and the lower part of the locking hole is used for accommodating one end of the pin shaft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811141972.7A CN109125957B (en) | 2018-09-28 | 2018-09-28 | Unlocking device for radiotherapy body frame plate and body frame plate with unlocking function |
| PCT/CN2018/118539 WO2020062542A1 (en) | 2018-09-28 | 2018-11-30 | Unlocking apparatus for use in radiotherapy body support plate, and body support plate having unlocking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811141972.7A CN109125957B (en) | 2018-09-28 | 2018-09-28 | Unlocking device for radiotherapy body frame plate and body frame plate with unlocking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109125957A CN109125957A (en) | 2019-01-04 |
| CN109125957B true CN109125957B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811141972.7A Active CN109125957B (en) | 2018-09-28 | 2018-09-28 | Unlocking device for radiotherapy body frame plate and body frame plate with unlocking function |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109125957B (en) |
| WO (1) | WO2020062542A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882492B (en) * | 2019-12-24 | 2025-10-10 | 广州科莱瑞迪医疗器材股份有限公司 | Unlocking components and body fixing devices |
| CN111391707B (en) * | 2020-04-17 | 2022-11-01 | 东风柳州汽车有限公司 | New energy automobile battery fixed knot constructs |
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| CN1420753A (en) * | 1999-12-29 | 2003-05-28 | 希尔-罗姆服务股份有限公司 | Hospital bed |
| CN104066412A (en) * | 2012-02-07 | 2014-09-24 | 迈柯唯有限公司 | Devices for manual unlocking of holding mechanisms that can be loaded by a load |
| CN205948194U (en) * | 2016-05-17 | 2017-02-15 | 华中科技大学同济医学院附属同济医院 | Head and neck radiotherapy fixing device |
| CN106798967A (en) * | 2017-01-05 | 2017-06-06 | 朱远湖 | Radiotherapy body frame lowering or hoisting gear and radiotherapy body frame |
| CN209422785U (en) * | 2018-09-28 | 2019-09-24 | 四川省肿瘤医院 | An unlocking device for a body frame for radiotherapy and a body frame with an unlocking function |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205434718U (en) * | 2015-12-29 | 2016-08-10 | 广州思安医疗科技有限公司 | Radiotherapy locating plate with strake locking mechanism |
| WO2018009447A1 (en) * | 2016-07-05 | 2018-01-11 | Medtec, Inc. | Head restraint system |
| CN106730409A (en) * | 2016-11-29 | 2017-05-31 | 康倍特（湖北）科技有限公司 | The bolt device and its assembly method of a kind of stationary positioned film |
-
2018
- 2018-09-28 CN CN201811141972.7A patent/CN109125957B/en active Active
- 2018-11-30 WO PCT/CN2018/118539 patent/WO2020062542A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420753A (en) * | 1999-12-29 | 2003-05-28 | 希尔-罗姆服务股份有限公司 | Hospital bed |
| CN104066412A (en) * | 2012-02-07 | 2014-09-24 | 迈柯唯有限公司 | Devices for manual unlocking of holding mechanisms that can be loaded by a load |
| CN205948194U (en) * | 2016-05-17 | 2017-02-15 | 华中科技大学同济医学院附属同济医院 | Head and neck radiotherapy fixing device |
| CN106798967A (en) * | 2017-01-05 | 2017-06-06 | 朱远湖 | Radiotherapy body frame lowering or hoisting gear and radiotherapy body frame |
| CN209422785U (en) * | 2018-09-28 | 2019-09-24 | 四川省肿瘤医院 | An unlocking device for a body frame for radiotherapy and a body frame with an unlocking function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109125957A (en) | 2019-01-04 |
| WO2020062542A1 (en) | 2020-04-02 |
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