CN115887165B - Supporting jig - Google Patents

Abstract

The invention discloses a supporting jig, which comprises: a first support structure for securing a first object; a second support structure for securing a second object; the bottom plate can be provided with at least one of a supporting seat and an acetabular fixing part, the acetabular fixing part is used for fixing an acetabular part of a target object, the supporting seat is hinged with a partial area of the second supporting structure, which is arranged in a detachable mode, and the acetabular fixing part is arranged adjacent to one end, far away from the first supporting structure, of the second supporting structure; the angle adjusting structure is arranged on the bottom plate and connected with the second end of the first supporting structure; in the unlocking state, the first support structure can rotate around the hinge axis relative to the second support structure to adjust the angle between the first support structure and the second support structure; in the locked state, the first support structure is fixedly arranged. The invention has the advantages of convenient angle adjustment, stable support and difficult leg bone shaking.

Description

Supporting jig

Technical Field

The invention relates to the technical field of medical equipment, in particular to a supporting jig.

Background

Currently, knee joint support frames are commonly used to support the knee joint to be osteotomized during knee joint osteotomy. The existing knee joint support frame has the following defects in the operation of osteotomy: when the angle of the thigh and the shank of the patient is adjusted before the operation, the adjustment is discontinuous, and the shank of the patient is required to be lifted for adjustment, so the adjustment is very inconvenient.

In addition, when the bone surgery robot performs an osteotomy test, the fixed leg bones are usually clamped at the bottom ends of the femur and tibia respectively by two bench vices. The following disadvantages exist in operation: 1. when clamping, the bench vice only clamps one end of the femur or tibia, and when the test osteotomy is performed, the clamping is unstable and easy to shake. 2. The adjustment of the angle of the femur and tibia is inconvenient.

Disclosure of Invention

The invention aims to provide a supporting jig which aims to solve the technical problems that the angle adjustment between the legs is inconvenient in the current osteotomy and the osteotomy test, the clamping of the legs is unstable and the legs are easy to shake in the test.

The above object of the present invention can be achieved by the following technical solutions:

The invention provides a support jig, comprising: a first support structure for securing a first object, the first support structure having oppositely disposed first and second ends on an axis thereof; the second support structure is used for fixing a second object, one end of the second support structure is hinged with the first end of the first support structure, and the hinge axis is respectively perpendicular to the axis of the second support structure and the axis of the first support structure; a base plate on which at least one of a support seat and an acetabular fixation portion for fixing an acetabular portion of a target object is mounted, the support seat being hinged to a partial region of the second support structure, the acetabular fixation portion being detachably mounted on the base plate and being disposed adjacent to an end of the second support structure remote from the first support structure; the angle adjusting structure is arranged on the bottom plate and connected with the second end of the first supporting structure, and the angle adjusting structure is in a locking state and an unlocking state; wherein in the unlocked state, the first support structure is rotatable relative to the second support structure about the hinge axis to adjust an angle between the first support structure and the second support structure; in the locking state, the first support structure is fixedly arranged.

In an embodiment of the invention, the support jig has a clinical use state and a test use state; wherein, in the clinical use state, the acetabulum fixing part is removed and the supporting seat is arranged on the bottom plate; in the test use state, the acetabulum fixing part is arranged on the bottom plate, and the supporting seat is detached.

In an embodiment of the invention, two ends of the supporting seat are detachably connected with the bottom plate and the second supporting structure.

In an embodiment of the invention, the acetabular fixing portion comprises a ball socket structure and an acetabular locking structure, the ball socket structure is located at one side of the second supporting structure and is obliquely arranged, the acetabular part of the second object can extend into the ball socket structure and is in running fit with the ball socket structure, and the acetabular locking structure is used for extending into the ball socket structure and abutting against the acetabular part.

In an embodiment of the invention, the acetabulum fixing part comprises a first fixed seat and an acetabulum movable clamping block, one end of the acetabulum movable clamping block is hinged with the first fixed seat, the other end of the acetabulum movable clamping block is connected with the first fixed seat through a buckle structure, and a ball socket structure is formed between the acetabulum movable clamping block and the first fixed seat;

the acetabulum locking structure comprises a locking screw rod, and one end of the locking screw rod can penetrate through the acetabulum movable clamping block and extend into the ball socket structure to be abutted with the acetabulum part.

In an embodiment of the invention, the angle adjusting structure comprises a sliding fit structure and a sliding locking structure, the second end of the first supporting structure is in sliding fit with the sliding fit structure along an adjusting direction, the adjusting direction is coplanar with the axis of the second supporting structure and the axis of the first supporting structure, and the sliding locking structure is used for fixedly connecting the second end of the first supporting structure with the sliding fit structure to form the locking state.

In an embodiment of the invention, the angle adjusting structure comprises an adjusting plate, the adjusting plate is mounted on the bottom plate, a plurality of slots are arranged on the adjusting plate at intervals along an adjusting direction, the adjusting direction is coplanar with the axis of the second supporting structure and the axis of the first supporting structure, and the second end of the first supporting structure can be inserted into the slots respectively to enable the first supporting structure and the second supporting structure to form various angles.

In an embodiment of the invention, the angle adjusting structure comprises a swinging rod, the second supporting structure is further provided with a second end which is opposite to the first end of the second supporting structure on the axis, one end of the swinging rod is hinged with the second end of the first supporting structure, the other end of the swinging rod is hinged with the bottom plate, and the swinging rod, the second supporting structure, the first supporting structure and the bottom plate are matched to form a four-bar structure.

In an embodiment of the present invention, the second support structure and the first support structure each have at least one second fixing seat, and at least one fastening structure is disposed on the second fixing seat, and the fastening structure is used for fixing a target object placed on the second fixing seat.

In an embodiment of the invention, the clamping structure comprises a fixed clamping block, a movable clamping block and a clamping locking structure, wherein the fixed clamping block is connected with the second fixed seat, the movable clamping block is arranged on the second fixed seat through the clamping locking structure, and the clamping locking structure can drive the movable clamping block to be close to or far away from the fixed clamping block; or alternatively

The clamping structure comprises a fixing belt, and a first end of the fixing belt is connected with a first end of the second fixing seat; the second end of the fixing strap is bound and fixed at the second end of the second fixing seat; or a magic tape is paved at the second end of the fixing strap, a perforation is arranged at the second end of the second fixing seat, and the second end of the fixing strap passes through the perforation and is adhered and fixed with the fixing strap by the magic tape; or the second end of the fixing strap is connected with the second end of the second fixing seat through an adjusting buckle; or also or alternatively

The clamping structure comprises a cover plate, two ends of the cover plate are connected with two ends of the second fixing seat, an air bag is arranged on the inner side surface of the cover plate opposite to the second fixing seat, an inflation connector is arranged on the cover plate, and the inflation connector is communicated with the air bag.

The invention has the characteristics and advantages that:

According to the support jig disclosed by the invention, the first end of the first support structure is hinged with the first end of the second support structure, the second end of the first support structure is connected with the bottom plate through the angle adjusting structure, the angle between the tibia and the femur can be adjusted by only adjusting the first support structure or the fixed tibia or the fixed calf thereof through unlocking the angle adjusting structure, the second support structure or the fixed femur or the fixed thigh thereof is not required to be operated, the angle adjustment is convenient, in addition, the second support structure is supported by the support seat, so that the size of the thigh can be adapted to clinical use and the stability of the support can be improved, and the acetabular part of the femur for testing is fixed by the acetabular fixing part, so that after the angle is adjusted in place, the second support structure and the first support structure can be stably kept at a required angle regardless of clinical use or test use, and the femur can not shake during the test.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a supporting jig according to a first embodiment of the present invention.

Fig. 2 is a perspective view of a supporting jig according to another view angle of the first embodiment of the present invention.

Fig. 3 is a perspective view of an acetabular fixation component according to a first embodiment of the invention.

Fig. 4 is a perspective view of another view of the acetabular fixation of the first embodiment of the invention.

Fig. 5 is a schematic structural view of an angle adjusting structure according to a first embodiment of the present invention.

Fig. 6 is a perspective view of a second support structure and a first support structure according to a first embodiment of the present invention.

Fig. 7 is a perspective view of a fixing base and a fixing member according to a first embodiment of the present invention.

Fig. 8 is a perspective view of another view of the fixing base and the fixing member according to the first embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a supporting fixture according to a second embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a supporting fixture according to a third embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a supporting fixture according to a fourth embodiment of the present invention.

Fig. 12 is a schematic structural diagram of a supporting fixture according to a fifth embodiment of the present invention.

Fig. 13 is a schematic structural diagram of a support fixture according to a sixth embodiment of the present invention.

Fig. 14 is a schematic structural diagram of a support fixture according to a seventh embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a support fixture according to an eighth embodiment of the present invention.

Fig. 16 is a schematic structural view of a supporting fixture according to a ninth embodiment of the present invention.

Fig. 17 is a schematic structural diagram of a support fixture according to a tenth embodiment of the present invention.

Fig. 18 is a schematic structural diagram of a supporting fixture according to an eleventh embodiment of the present invention.

Detailed Description

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1,2 and 9, the present invention provides a supporting fixture, comprising: a first support structure 2 for fixing a first object, the first support structure 2 having a first end 201 and a second end 202 disposed opposite on an axis Z2 thereof; a second support structure 3 for fixing a second object, wherein one end 304 of the second support structure 3 is hinged with the first end 201 of the first support structure 2, and the hinge axis Z1 is respectively perpendicular to the axis Z3 of the second support structure 3 and the axis Z2 of the first support structure 2; a base plate 1, on which at least one of a support seat 303 and an acetabular fixation portion 5 can be mounted, the acetabular fixation portion 5 being used for fixing an acetabular portion of a target object, the support seat 5 being hinged to a partial region of the second support structure 2, which is offset from the middle, the acetabular fixation portion 5 being detachably mounted on the base plate 1 and being disposed adjacent to an end 305 of the second support structure 3 remote from the first support structure 2; an angle adjusting structure 4 mounted on the base plate 1 and connected to the second end 202 of the first support structure 2, the angle adjusting structure 4 having a locked state and an unlocked state; wherein in the unlocked state, the first support structure 2 is rotatable relative to the second support structure 3 about the hinge axis Z1 to adjust the angle between the first support structure 2 and the second support structure 3; in the locked state, the first support structure 2 is fixedly arranged.

The first object fixed by the first support structure 2 may be a tibia when an orthopedic leg operation test is performed, or may be a calf of a patient when an orthopedic leg operation is performed; likewise, the second object to which the second support structure 3 is fixed may be a femur when performing an orthopaedic leg surgery test, or may be a thigh of a patient when performing an orthopaedic leg surgery.

According to the support jig of the invention, the first end 201 of the first support structure 2 is hinged with the third end 304 of the second support structure 3, the second end 202 of the first support structure 2 is connected with the bottom plate 1 through the angle adjusting structure 4, the angle between the second support structure 3 and the first support structure 2 can be adjusted by unlocking the angle adjusting structure 4 and only adjusting the first support structure 2 or the fixed tibia or calf thereof without operating the second support structure 3 and the fixed femur or thigh thereof, the angle adjustment is convenient, and the first support structure 2 can be fixed by locking the angle adjusting structure 4 after the adjustment is in place, so that the required angle between the second support structure 3 and the first support structure 2 can be stably maintained. In addition, the present invention supports the second support structure 3 by providing the support seat 303, thereby being capable of adapting to the size of the thigh and improving the stability of the support in clinical use, and fixing the acetabular part of the femur for test by providing the acetabular fixing part 5, so that the angle is adjusted in place, and the second support structure 3 and the first support structure 2 can be stably maintained at a desired angle regardless of clinical use or test use, and the leg bones do not shake in test.

The invention can be applied to not only the joint replacement surgery of orthopaedics, but also the leg surgery test of orthopaedics, namely the surgery simulation training, and can be applied to other scenes needing to support and position the legs.

As shown in fig. 1 and 2, in a first embodiment, the end 305 on the axis Z3 of the second support structure 3 may be provided directly as a free end, i.e. not connected to any component, when applied in an orthopaedic leg surgical test; by mounting the acetabular fixation 5 on the base plate 1, the acetabular fixation 5 is used to fix the acetabular part of the femur for testing, wherein the acetabular fixation 5 is in rotational engagement with the acetabular part of the femur by means of a socket structure 505 simulating an acetabular socket, the socket structure 505 is located on one side of the second support structure 3 and inclined at an angle, so that when the first support structure 2 is adjusted, the acetabular part of the femur can also rotate adaptively in the socket structure 505, and after being adjusted in place, is fixed by means of the acetabular locking structure 504, so that the second support structure 3, the femur and the acetabular fixation 5 are engaged, thereby ensuring that the second support structure 3 does not drive the femur Rao Jiaojie axis Z1 to rotate in the locked state, and that the femur does not shake on the second support structure 3.

As shown in fig. 3 and fig. 4, the acetabular fixing portion 5 includes a first fixing seat 502, an acetabular movable clamping block 501 and an acetabular locking structure 504, one end of the acetabular movable clamping block 501 is hinged with the first fixing seat 502, the other end of the acetabular movable clamping block 501 is connected with the first fixing seat 502 through a fastening structure 503, a ball socket structure 505 matched with the acetabular portion is formed between the acetabular movable clamping block 501 and the first fixing seat 502, and the acetabular locking structure 504 is mounted on the acetabular movable clamping block 501 and can extend into the ball socket structure 505 to be connected with the acetabular portion. During installation, the acetabular component of the femur is placed on the first fixed seat 502 by opening the acetabular movable clamping block 501, and then the acetabular movable clamping block 501 is buckled by the buckling structure 503, so that the acetabular component is accommodated in the ball and socket structure 505. When the angle is adjusted, the acetabulum fixing part 5 rotates around the hinge axis Z1 under the drive of the first support structure 2, the acetabulum part also rotates in the ball socket structure 505 in a suitable way until the angle between the first support structure 2 and the second support structure 3 is adjusted to be in place, and the acetabulum fixing part is connected with the acetabulum part through the acetabulum locking structure 504, so that the acetabulum part is locked and fixed.

Specifically, one end of the acetabular movable clamp block 501 is hinged to the first fixed seat 502 by a hinge 506. The buckle structure 503 adopts a buckle type structure, which is convenient for opening and buckling. The ball and socket arrangement 505 has an inner diameter slightly larger than the diameter of the acetabular component such that the acetabular component of the femur can rotate within the ball and socket arrangement 505 when the acetabular locking arrangement 504 is unlocked. The acetabular locking structure 504 is generally a screw structure with a knob at one end, and the other end of the acetabular locking structure 504 extends into the ball socket structure 505 and abuts against the acetabular component by rotating the knob, such that the acetabular component cannot rotate within the ball socket structure 505.

In the second embodiment, as shown in fig. 9, when applied to the clinical leg surgery of orthopaedics, a supporting seat 303 is provided on the base plate 1, and the second supporting structure 3 is hinged to the supporting seat 303, wherein the other end 305 (which may be defined as the rear end and the end 304 as the front end) of the second supporting structure 3 is preferably hinged to the supporting seat 303, and of course, other parts of the second supporting structure 3, which are located in the middle of the second supporting structure, may be hinged to the supporting seat 303. By means of this support seat 303, on the one hand, the stability of the structure can be improved, and on the other hand, the relative position between the second support structure 3 and the support seat 303 can be adapted to the different target objects and the fixation between the support means by means of the articulated connection of the support seat 303 and the second support structure 3.

Further, as shown in fig. 13, the second support structure 3 is hinged to the support seat 303 through a connection portion 306, and the connection portion 306 includes an interference portion 307, and during the angle adjustment, the interference portion 307 abuts against the support seat 303 to provide stable support.

When the device is applied to the orthopedic leg surgery test, the rear end 305 of the second support structure 3 is limited by the support seat 303 in the locked state, so that the second support structure 3 does not drive the femur Rao Jiaojie axis Z1 to rotate.

In addition, the above-mentioned acetabular fixation part 5 may also be used in combination with the above-mentioned bearing seat 303 when applied to an orthopedic leg surgery test.

In some embodiments, in the unlocked state, manual adjustment of the angle may be achieved by manipulating the first support structure or tibial or calf activity placed thereon. In other embodiments, in the unlocked state, the first support structure may be driven by an electric drive, an air drive, or the like to automatically adjust the angle. In addition, when the angle is adjusted, the second end of the first support structure can move linearly or swing circumferentially. The angle adjusting structure in each embodiment will be described in detail below.

As shown in fig. 1, 2 and 5, in the first embodiment of the present invention, the angle adjusting structure 4 includes a sliding fit structure 401 and a sliding locking structure 402, where the second end 202 of the first supporting structure 2 is slidably matched with the sliding fit structure 401 along an adjusting direction Z4, and the adjusting direction Z4 is coplanar with the axis Z3 of the second supporting structure 3 and the axis Z2 of the first supporting structure 2, and the sliding locking structure 402 is used to fixedly connect the second end 202 of the first supporting structure 2 with the sliding fit structure 401 to form a locking state.

As shown in fig. 5, in the first embodiment, the slide lock structure 402 may be a slide lock nut 412 that is manually locked and unlocked. Specifically, the sliding fit structure 401 is provided with an adjusting chute 411, as shown in fig. 5, the second end 202 of the first support structure 2 is provided with an adjusting slider 204, the adjusting slider 204 is matched with the adjusting chute 411, and the adjusting slider 204 has an arc surface matched with the bottom surface of the adjusting chute 411, so that the adjusting slider 204 can adaptively swing while sliding along the adjusting direction Z4 in the adjusting chute 411 during angle adjustment. One side of the adjusting chute 411 is provided with a mounting side plate 414 for mounting the sliding locking structure 402, the mounting side plate 414 is provided with a moving chute 413 along the adjusting direction Z4, the sliding locking structure 402 comprises a sliding locking screw 415 and a stop washer 404, one end of the sliding locking screw 415 sequentially passes through the stop washer 404 and the moving chute 413 and then stretches into the adjusting chute 411 to be connected with the adjusting slide block 204, a matching straight knurling groove or other stop structure is arranged on a matching surface of the stop washer 404 and the mounting side plate 414, and a baffle 403 is arranged on the mounting side plate 414, and the stop washer 404 is provided with a limiting surface 416 matched with the baffle 403 to prevent the stop washer 404 from rotating. The adjustment slider 204 is locked by screwing the slide lock screw 415 out so that a gap is provided between the stopper washer 404 and the mounting side plate 414, thereby allowing the adjustment slider 204 to slide in the adjustment chute 411, and by screwing the slide lock screw 415 so that the stopper washer 404 abuts against the mounting side plate 414.

As shown in fig. 10, in the third embodiment, the second slide lock structure 402 may be a fastener such as a slide lock screw 415 that is manually locked and unlocked. Specifically, the sliding fit structure 401 is provided with an adjusting chute 411, two sides of the adjusting chute 411 are provided with a plurality of clamping grooves 406 at intervals along an adjusting direction Z4, the clamping grooves 406 are of concave curved surface structures, two adjacent clamping grooves 406 are connected through a convex curved surface structure, the second end 202 of the first supporting structure 2 is in sliding fit with the adjusting chute 411 through an adjusting slide block 204, two ends of the adjusting slide block 204 are provided with clamping shafts matched with the clamping grooves 406, when the first supporting structure 2 is pushed along the adjusting direction Z4, the clamping shafts can slide into different clamping grooves 406, and when the required angle is adjusted, the sliding locking is realized by screwing a sliding locking nut 412 sleeved on one clamping shaft.

As shown in fig. 11, in the fourth embodiment of the present invention, the angle adjusting structure 4 includes an adjusting plate 409, the adjusting plate 409 is mounted on the base plate 1, a plurality of slots 410 are arranged on the adjusting plate 409 at intervals along an adjusting direction Z4, the adjusting direction Z4 is coplanar with an axis Z3 of the second support structure 3 and an axis Z2 of the first support structure 2, and the second end 202 of the first support structure 2 can be inserted into the plurality of slots 410 respectively to form a plurality of angles between the first support structure 2 and the second support structure 3.

As shown in fig. 12, in the fifth embodiment of the present invention, the angle adjusting structure 4 may also be a brake 405 that is locked and unlocked by electric control.

As shown in fig. 13, in the sixth embodiment of the present invention, the angle adjusting structure 4 includes a linear driving structure 407, the linear driving structure 407 is mounted on the base plate 1, the second end 202 of the first supporting structure 2 is connected to the linear driving structure 407, and the linear driving structure 407 can drive the second end 202 of the first supporting structure 2 to move along an adjusting direction Z4, where the adjusting direction Z4 is disposed coplanar with the axis Z3 of the second supporting structure 3 and the axis Z2 of the first supporting structure 2. Specifically, the linear driving structure 407 may be an electric push rod, or may be other driving structures such as a telescopic cylinder and a telescopic cylinder.

As shown in fig. 14, in the seventh embodiment of the present invention, the angle adjusting structure 4 includes a swing rod 408, the second supporting structure 3 further has a fourth end 305 disposed opposite to the third end 304 thereof on the axis Z3, one end of the swing rod 408 is hinged to the second end 202 of the first supporting structure 2, the other end of the swing rod 408 is hinged to the base plate 1, and the swing rod 408, the second supporting structure 3, the first supporting structure 2 and the base plate 1 cooperate to form a four-bar structure. The swing link 408 is driven to rotate by a rotating pair or other driving member for angle adjustment.

As shown in fig. 6, in the embodiment of the present invention, the second support structure 3 and the first support structure 2 have at least one second fixing seat 6 thereon. The width of the second fixing seat 6 can be designed according to the requirement, and when the device is applied to the orthopedic leg surgery, the second fixing seat 6 on the second support structure 3 and the first support structure 2 respectively place thighs and calves, and the width is larger; the second support structure 3 and the second fixing seat 6 on the first support structure 2 are respectively used for placing the femur and the tibia when being applied to the orthopedic leg surgery test, and the width is smaller. Specifically, as shown in fig. 6, the second support structure 3 includes a femur support plate 301, the first support structure 2 includes a tibia support plate 203, the tibia support plate 203 is hinged to the femur support plate 301, and a plurality of mounting holes 205 and a plurality of mounting holes 302 are respectively provided on the tibia support plate 203 and the femur support plate 301 along axes thereof at intervals, so that the second fixing base 6 can be mounted at different mounting holes 302 and mounting holes 205 as required.

As shown in fig. 6, the second fixing base 6 is provided with at least one fastening structure 601, and the fastening structure 601 is used for fixing the leg bone placed on the second fixing base 6. The snap-in structure 601 in each embodiment will be described in detail below.

As shown in fig. 7 and 8, in the first embodiment of the present invention, the fastening structure 601 includes a fixed clamping block 603, a movable clamping block 604 and a clamping locking structure 605, the fixed clamping block 603 is connected with the second fixing base 6, the movable clamping block 604 is mounted on the second fixing base 6 through the clamping locking structure 605, and the clamping locking structure 605 can drive the movable clamping block 604 to approach or separate from the fixed clamping block 603. Specifically, the clamping locking structure 605 includes a clamping locking screw 619, the second fixing base 6 has a base 616, and a first side plate 617 and a second side plate 618 disposed on the base 616, the fixed clamping block 603 is mounted on an inner side surface of the first side plate 617, the clamping locking screw 619 is disposed on the second side plate 618 in a penetrating manner and abuts against the movable clamping block 604, and the movable clamping block 604 is pushed to move towards the fixed clamping block 603 by screwing in the clamping locking screw 619, so as to fix the leg bone clamping between the fixed clamping block 603 and the movable clamping block 604. The inner sides of the fixed clamping block 603 and the movable clamping block 604, which are arranged relative to each other, are provided with grooves or protrusions for skid prevention. The clamping locking screw 619 is further sleeved with a clamping locking nut 606 and an anti-vibration gasket 607, and after the clamping locking screw 619 is screwed, the anti-vibration gasket 607 is abutted against the second side plate 618 by screwing in the clamping locking nut 606, so that the clamping locking screw 619 is prevented from vibrating to loosen in a surgery or a surgery test process.

In some possible embodiments, the fastening structure 601 includes a fixing band 602, and a first end of the fixing band 602 is connected to a first end of the second fixing base 6. As shown in fig. 15, in the eighth embodiment of the present invention, the second end of the fixing band 602 is fastened and fixed to the second end of the second fixing base 6. As shown in fig. 16, in the ninth embodiment of the present invention, a hook and loop fastener 609 is laid on the second end of the fixing strap 602, a through hole is provided on the second end of the second fixing base 6, and the second end of the fixing strap 602 passes through the through hole and is adhered and fixed to itself by the hook and loop fastener 609. As shown in fig. 17, in the tenth embodiment of the present invention, the second end of the fixing band 602 is connected to the second end of the second fixing base 6 through an adjusting buckle 610. The securing strap 602 is a belt.

As shown in fig. 18, in the eleventh embodiment of the present invention, the fastening structure 601 includes a cover plate 611, two ends of the cover plate 611 are connected to two ends of the second fixing base 6, an air cell 614 is disposed on an inner side surface of the cover plate 611 opposite to the second fixing base 6, and an air inflation connector 608 is disposed on the cover plate 611, and the air inflation connector 608 is communicated with the air cell 614. The present embodiment is preferably applied in a clinical setting, but may also be applied in a test setting. Specifically, one end of the cover plate 611 is connected with one end of the second fixing base 6 through a connecting belt 612, and the other end of the cover plate 611 is hooked with a hook hole 615 arranged at the other end of the second fixing base 6 through a hook 613. After the hooks 613 are released, the cover plate 611 is turned outwards, the leg bones are placed on the second fixing seat 6, then the cover plate 611 is turned inwards, the hooks 613 are hooked on the hook holes 615, and finally the air bag 614 is inflated through the inflation connector 608 to expand so as to tightly wrap the affected limbs placed on the second fixing seat 6.

The supporting device provided by the invention has the following beneficial effects:

After the first angle adjusting structure is unlocked, the angle can be adjusted by adjusting the first supporting structure or the fixed tibia or calf thereof.

Secondly, when being applied to the operation test, can utilize acetabular fixation portion, second bearing structure and first bearing structure and angle adjustment structure to retrain each other, ensure to support fixed with tibia and femur that the test was used, be difficult for rocking.

Thirdly, when being applied to clinical operation, can utilize the supporting seat to adapt to the size of thigh and improve the stability of supporting, ensure to support patient's shank and thigh and fix.

The foregoing is merely a few embodiments of the present invention and those skilled in the art may make various modifications or alterations to the embodiments of the present invention in light of the disclosure herein without departing from the spirit and scope of the invention.

Claims (9)

1. A support jig, characterized by comprising:

a first support structure for securing a first object, the first support structure having oppositely disposed first and second ends on an axis thereof;

the second support structure is used for fixing a second object, one end of the second support structure is hinged with the first end of the first support structure, and the hinge axis is respectively perpendicular to the axis of the second support structure and the axis of the first support structure;

A base plate on which at least one of a support seat and an acetabular fixation portion for fixing an acetabular portion of a target object is mountable, the support seat being hinged to a partial region of the second support structure, the acetabular fixation portion being detachably mounted on the base plate and being disposed adjacent to an end of the second support structure remote from the first support structure;

The angle adjusting structure is arranged on the bottom plate and connected with the second end of the first supporting structure, and the angle adjusting structure is in a locking state and an unlocking state;

Wherein in the unlocked state, the first support structure is rotatable relative to the second support structure about the hinge axis to adjust an angle between the first support structure and the second support structure; in the locking state, the first supporting structure is fixedly arranged;

The acetabulum fixing part comprises a ball socket structure and an acetabulum locking structure, the ball socket structure is positioned on one side of the second supporting structure and is obliquely arranged, the acetabulum part can extend into the ball socket structure and is in running fit with the ball socket structure, and the acetabulum locking structure is used for extending into the ball socket structure and is in butt joint with the acetabulum part.

2. The support jig of claim 1, wherein,

The supporting jig has a clinical use state and a test use state; wherein, in the clinical use state, the acetabulum fixing part is removed and the supporting seat is arranged on the bottom plate; in the test use state, the acetabulum fixing part is arranged on the bottom plate, and the supporting seat is detached.

3. The support jig of claim 2, wherein,

And two ends of the supporting seat are detachably connected with the bottom plate and the second supporting structure.

4. The support jig of claim 1, wherein,

The acetabulum fixing part comprises a first fixed seat and an acetabulum movable clamping block, one end of the acetabulum movable clamping block is hinged with the first fixed seat, the other end of the acetabulum movable clamping block is connected with the first fixed seat through a buckle structure, and a ball socket structure is formed between the acetabulum movable clamping block and the first fixed seat;

the acetabulum locking structure comprises a locking screw rod, and one end of the locking screw rod can penetrate through the acetabulum movable clamping block and extend into the ball socket structure to be abutted with the acetabulum part.

5. The support jig of claim 1, wherein,

The angle adjusting structure comprises a sliding fit structure and a sliding locking structure, the second end of the first supporting structure is in sliding fit with the sliding fit structure along an adjusting direction, the adjusting direction is coplanar with the axis of the second supporting structure and the axis of the first supporting structure, and the sliding locking structure is used for fixedly connecting the second end of the first supporting structure with the sliding fit structure to form the locking state.

6. The support jig of claim 1, wherein,

The angle adjusting structure comprises an adjusting plate, the adjusting plate is arranged on the bottom plate, a plurality of slots are arranged on the adjusting plate at intervals along an adjusting direction, the adjusting direction is coplanar with the axis of the second supporting structure and the axis of the first supporting structure, and the second end of the first supporting structure can be inserted into a plurality of slots respectively to enable the first supporting structure and the second supporting structure to form various angles.

7. The support jig of claim 1, wherein,

The angle adjusting structure comprises a swinging rod, the second supporting structure is further provided with a second end which is opposite to the first end of the second supporting structure on the axis of the second supporting structure, one end of the swinging rod is hinged to the second end of the first supporting structure, the other end of the swinging rod is hinged to the bottom plate, and the swinging rod, the second supporting structure, the first supporting structure and the bottom plate are matched to form a four-bar structure.

8. The support jig according to any one of claims 1 to 7, wherein,

The second support structure and the first support structure are respectively provided with at least one second fixing seat, and at least one clamping structure is arranged on the second fixing seat and used for fixing a target object placed on the second fixing seat.

9. The support jig of claim 8, wherein,

The clamping structure comprises a fixed clamping block, a movable clamping block and a clamping locking structure, the fixed clamping block is connected with the second fixed seat, the movable clamping block is arranged on the second fixed seat through the clamping locking structure, and the clamping locking structure can drive the movable clamping block to be close to or far away from the fixed clamping block; or alternatively

The clamping structure comprises a fixing belt, and a first end of the fixing belt is connected with a first end of the second fixing seat; the second end of the fixing strap is bound and fixed at the second end of the second fixing seat; or a magic tape is paved at the second end of the fixing strap, a perforation is arranged at the second end of the second fixing seat, and the second end of the fixing strap passes through the perforation and is adhered and fixed with the fixing strap by the magic tape; or the second end of the fixing strap is connected with the second end of the second fixing seat through an adjusting buckle; or also or alternatively

The clamping structure comprises a cover plate, two ends of the cover plate are connected with two ends of the second fixing seat, an air bag is arranged on the inner side surface of the cover plate opposite to the second fixing seat, an inflation connector is arranged on the cover plate, and the inflation connector is communicated with the air bag.