CN119488308A - Medical equipment and lifting devices - Google Patents

Abstract

The invention provides medical equipment and a lifting device thereof, wherein the lifting device is applied to the medical equipment and comprises a scissor type lifting mechanism and a driving mechanism connected with the scissor type lifting mechanism, the scissor type lifting mechanism comprises a plurality of scissor type supports which are sequentially connected along a first direction, the scissor type supports on two sides along the first direction are respectively used for connecting a C-shaped arm and a detector of the medical equipment, and the driving mechanism can drive the plurality of scissor type supports to unfold or fold along the first direction. The lifting device is simple in structure, and the detector can be driven to move up and down along the first direction only by driving the scissor type lifting mechanism to be unfolded or folded along the first direction through the driving mechanism, so that the distance between the detector and the ray source is adjusted. Based on the unfolding property and folding property of the scissor type lifting mechanism, the trend of the detector along the first direction can be ensured, and the occupied space of the lifting device can be reduced on the premise that the movement range of the detector along the first direction is unchanged.

Description

Medical equipment and lifting device thereof

Technical Field

The invention relates to the technical field of medical equipment, in particular to medical equipment and a lifting device thereof.

Background

The prior medical suspended DSA equipment flat plate mechanism generally adopts a lifting structure to ensure SID (source image distance) requirements. The flat lifting mechanism is usually arranged at the end of the C-shaped arm by adopting a single-stage barrel, and the rotating stroke of the C-shaped arm along the radian direction of the flat lifting mechanism is easily compressed. At present, in order to compensate the rotation stroke of the C-shaped arm, a scheme of double C-shaped arms or lengthening the arc length of one end of the C-shaped arm, where the spherical tube is arranged, is generally adopted, the scheme of double C-shaped arms can increase the complexity and cost of the overall structure, the multi-stage nesting can weaken the rigidity of the system, the problem of CBCT vibration is brought, the arc length of one end of the C-shaped arm, where the spherical tube is arranged, increases the volume of the overall structure, and the risk of collision to the legs and feet of doctors in clinical use exists. In the existing three-stage barrel design mode, the three-stage barrel design adopts a multi-screw multiplication structure, the structure is complex, more space in the barrel is occupied, the double-barrel design adopts a single-screw design, the appearance barrel housing still uses the three-stage barrel body, and the problem that the movement of the second-stage barrel is random and cannot be multiplied is solved.

Disclosure of Invention

The invention provides medical equipment and a lifting device thereof, and aims to ensure the trend space of a detector on a C-shaped arm and reduce the occupied space of the lifting device on the premise of ensuring that the lifting movement range of the detector is unchanged.

In order to solve the above technical problem, according to one aspect of the present invention, there is provided a lifting device, which is applied to a medical apparatus including a C-arm and a detector, the lifting device including:

The shear type lifting mechanism comprises a plurality of shear type brackets which are sequentially connected along a first direction, and the shear type brackets on two sides along the first direction are respectively used for connecting a C-shaped arm and a detector of medical equipment;

The driving mechanism is connected with the scissor type lifting mechanism and can drive the scissor type brackets to unfold or fold along the first direction.

Optionally, the scissor bracket includes a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm are arranged in a crossing manner and are rotatably connected with each other;

Wherein, in two adjacent scissors type support, one scissors type support's first linking arm and another scissors type support's second linking arm rotatable coupling, one scissors type support's second linking arm and another scissors type support's first linking arm rotatable coupling.

Optionally, in the scissor bracket of the scissor lifting mechanism, which is close to the C-shaped arm, the second connecting arm is fixed at a position different from a position along a second direction of one end connected with an adjacent scissor bracket, and the first connecting arm is movable along the second direction different from one end connected with an adjacent scissor bracket;

In the scissor type support, which is close to the detector, of the scissor type lifting mechanism, the first connecting arm is different from the position, which is connected with one end of the adjacent scissor type support, along the second direction, and the second connecting arm is different from the position, which is connected with one end of the adjacent scissor type support, along the second direction, and is movable;

The second direction is perpendicular to the first direction, and the second direction is parallel to the plane where the scissor bracket is located.

Optionally, the scissor lifting mechanism further comprises a first mounting base and a second mounting base;

the second connecting arm is rotatably connected with the first mounting base in the scissor bracket, which is close to the C-shaped arm, of the scissor lifting mechanism, and the first connecting arm is rotatably connected with the driving mechanism;

In the shear type support, the first connecting arm is rotatably connected with the second mounting base, the second connecting arm is rotatably connected with the second mounting base, and the second connecting arm is different from one end of the second connecting arm, which is adjacent to the shear type support in connection, and is movably connected with the second mounting base.

Optionally, the driving mechanism includes a driving member and a driven member connected to the driving member, where the rotational movement of the driving member may be converted into a linear movement of the driven member along a second direction, where the driven member is rotatably connected to a first connecting arm or a second connecting arm of one of the scissor supports, the second direction is perpendicular to the first direction, and the second direction is parallel to a plane where the scissor supports are located.

Optionally, at least part of the driving member is configured as a screw, and the driven member is in threaded connection with the screw in the driving member.

Optionally, the lifting device comprises at least three protective matrixes, wherein the protective matrixes surround the scissor type lifting mechanism and are barrel-shaped or shell-shaped along the first direction, the at least three protective matrixes are sequentially and movably overlapped along the first direction and are sequentially arranged along the second direction, the at least three protective matrixes are matched with each other to cover the scissor type bracket, and the two protective matrixes positioned at two sides of the first direction are respectively used for connecting the C-shaped arm and the detector;

The second direction is perpendicular to the first direction, and the second direction is parallel to the plane where the scissor bracket is located.

Optionally, the lifting device includes three protective substrates, which are a first protective substrate, a second protective substrate and a third protective substrate, and the first protective substrate, the second protective substrate and the third protective substrate are sequentially far away from the scissor lifting mechanism along the second direction;

One of the scissor type supports located between the scissor type supports on two sides of the first direction is a reference scissor type support, a rotating shaft between a first connecting arm and a second connecting arm of the reference scissor type support is a reference shaft, the reference shaft is fixedly connected with the second protection base body, and the first protection base body is provided with a through hole for the reference shaft to move along the first direction.

Optionally, the lifting device further comprises a guide structure, wherein the guide structure comprises a guide rail extending along the first direction and a sliding block movably connected with the guide rail, one of the two adjacent protective matrixes is provided with the guide rail, and the other one is provided with the sliding block.

Based on another aspect of the present invention, the present invention also provides a medical device comprising:

a C-arm having two opposite inboard ends, both of the inboard ends being located on an intrados of the C-arm;

a radiation source mounted on one of the inboard ends of the C-arm;

A detector;

According to the lifting device, one end of the scissor type lifting mechanism of the lifting device along the first direction is connected with the detector, the other end of the scissor type lifting mechanism along the first direction is connected to the other inner side end of the C-shaped arm, namely, the scissor type supports on two sides of the scissor type lifting mechanism along the first direction are respectively connected to the detector and the other inner side end of the C-shaped arm.

In summary, in the medical device and the lifting device thereof provided by the invention, the lifting device is applied to the medical device, the medical device comprises a C-shaped arm and a detector, the lifting device comprises a scissor type lifting mechanism and a driving mechanism connected with the scissor type lifting mechanism, the scissor type lifting mechanism comprises a plurality of scissor type supports sequentially connected along a first direction, the scissor type supports on two sides along the first direction are respectively used for connecting the C-shaped arm and the detector of the medical device, and the driving mechanism can drive the plurality of scissor type supports to unfold or fold along the first direction.

The lifting device is simple in structure, and the detector can be driven to move up and down along the first direction only by driving the scissor type support of the scissor type lifting mechanism to unfold or fold along the first direction through the driving mechanism, so that the distance between the detector and the ray source is adjusted. Based on the unfolding property and folding property of the scissor type lifting mechanism, the trend of the detector along the first direction can be ensured, and the occupied space of the lifting device can be reduced on the premise that the movement range of the detector along the first direction is unchanged.

It should be noted that the medical apparatus of the present invention includes the lifting device, so that the medical apparatus has advantageous technical effects brought about by the lifting device, and a description thereof will not be repeated. And moreover, the radiation source and the detector can be respectively arranged on two opposite inner side ends of the C-shaped arm based on the movement mode of the lifting device for driving the detector, so that the arc length of one end of the C-shaped arm, on which the radiation source is arranged, is not required to be prolonged on the premise of ensuring the travel requirement of the movement of the sliding ring of the C-shaped arm, the overall attractiveness is not influenced, and the movement of the sliding ring of the C-shaped arm is not influenced.

Drawings

It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the invention and do not constitute any limitation on the scope of the invention. Wherein:

FIG. 1 is a schematic view of a medical device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a lifting device according to an embodiment of the invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a top view of a lifting device according to an embodiment of the present invention along a first direction;

fig. 5 is a schematic diagram of a medical device of the prior art.

In the accompanying drawings:

10-lifting device, 11-scissor type lifting mechanism, 111-scissor type bracket, 1111-first connecting arm, 1112-second connecting arm, D-first scissor type bracket, E-second scissor type bracket, F-third scissor type bracket, G-reference scissor type bracket, G1-reference shaft, 112-first mounting base, 113-second mounting base, 12-driving mechanism, 121-driving piece, 122-driven piece, 123-motor, 124-driving unit, 13-protecting base, 131-first protecting base, 1310-through hole, 132-second protecting base, 133-third protecting base, 141-guide rail, 142-sliding block, 15-first connecting block, 16-second connecting block, 17-third connecting block and 18-fourth connecting block;

A 20-C-arm;

30-a detector;

A 40-ray source;

50-mounting structure;

60-pulley structure;

70-lifting structure;

m-first direction, n-second direction.

Detailed Description

The invention will be described in further detail with reference to the drawings and the specific embodiments thereof in order to make the objects, advantages and features of the invention more apparent. It should be noted that the drawings are in a very simplified form and are not drawn to scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. Furthermore, the structures shown in the drawings are often part of actual structures. In particular, the drawings are shown with different emphasis instead being placed upon illustrating the various embodiments.

As used in this disclosure, the singular forms "a," "an," and "the" include plural referents, the term "or" are generally used in the sense of comprising "and/or" and the term "several" are generally used in the sense of comprising "at least one," the term "at least two" are generally used in the sense of comprising "two or more," and the term "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance or number of features indicated. Thus, a feature defining a "first", "second", "third" or "a" may include, explicitly or implicitly, one or at least two such feature, one end "and" the other end "and" the proximal end "and" the distal end "generally refer to the respective two parts, including not only the endpoints, but also the terms" mounted "," connected "are to be interpreted broadly, e.g., as a fixed connection, as a removable connection, as a unitary body, as a mechanical connection, as an electrical connection, as a direct connection, as an indirect connection via an intermediary, as a communication between two elements, or as an interaction relationship between two elements. Furthermore, as used in this disclosure, an element disposed on another element generally only refers to a connection, coupling, cooperation or transmission between two elements, and the connection, coupling, cooperation or transmission between two elements may be direct or indirect through intermediate elements, and should not be construed as indicating or implying any spatial positional relationship between the two elements, i.e., an element may be in any orientation, such as inside, outside, above, below, or on one side, of the other element unless the context clearly indicates otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Fig. 1 is a schematic view of a medical device according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention schematically illustrates a medical apparatus, which may be a medical imaging apparatus, including a C-arm 20, a radiation source 40, a detector 30, and a lifting device 10, the radiation source 40 being mounted at one end of the C-arm 20, the detector 30 being mounted to the other end of the C-arm 20 by the lifting device 10 so that the radiation source 40 and the detector 30 are aligned, as shown in fig. 1. It will be appreciated that the source 40 is a device capable of emitting X-rays, gamma rays, or electrons, and the detector 30 is a device capable of receiving radiation from the source 40, and that the cooperation of the source 40 and the detector 30 may be used to perform medical examination or treatment. In one embodiment, the radiation source 40 comprises a bulb capable of emitting radiation (e.g., X-rays), the detector 30 may be a flat panel detector 30, and the radiation emitted by the bulb is received by the detector 30 for imaging after passing through the patient, and the medical imaging device is a digital subtraction angiographic imaging (Digital Subtraction Angiography, DSA) device, which may be used in assisted applications in angiographic, cardiology, and neurology fields, as the invention is not limited in this respect.

Further, the medical device further comprises a mounting structure 50 and a pulley structure 60 connected to the mounting structure 50, wherein the mounting structure 50 is fixable at a predetermined position, such as a ceiling of an operating room, and the pulley structure 60 is shaped to fit the C-arm 20, and the pulley structure 60 is slidably connected to the C-arm 20, such that the C-arm 20 can perform a rotational movement in a direction of its own arc (i.e. a slip ring movement of the C-arm 20). Preferably, the sled structure 60 also rotates the C-arm 20 about the axis H. Thus, the relative pose between the detector 30 and the radiation source 40 can be adjusted by the C-arm 20, thereby meeting more clinical use requirements.

The lifting device 10 has mechanical features that enable the detector 30 to be moved in a lifting direction (the lifting direction is understood herein to be the direction of the line connecting the two ends of the C-arm 20) such that the detector 30 is closer to or farther from the radiation source 40, thereby enabling SID (SID refers to the relative distance between the focal point of the bulb of the radiation source 40 and the imaging plane of the detector 30) to be adjustable to meet a wider clinical diagnostic scope.

Fig. 2 is a schematic view of a lifting device according to an embodiment of the present invention, and fig. 3 is an enlarged view of a portion a in fig. 2. Referring to fig. 2 and 3, the lifting device 10 includes a scissor lift 11 and a driving mechanism 12 connected to the scissor lift 11, wherein the extending direction of the scissor lift 11 is a first direction m, the scissor lift 11 is extendable or foldable along the first direction m, and two ends of the scissor lift 11 along the first direction m are respectively connected to one end of the C-arm 20 and the detector 30, so that the detector 30 is mounted to the C-arm 20 through the scissor lift 11. Specifically, the scissor lift mechanism 11 includes a plurality of scissor supports 111 sequentially connected along the first direction m, and the scissor supports 111 located at one side of the first direction m are connected to one end of the C-arm 20, and the scissor supports 111 located at the other side of the first direction m are connected to the detector 30. It will be appreciated that, after the detector 30 is mounted on the C-arm 20 by the scissor lift mechanism 11, the first direction m is parallel to the connecting line direction between the two ends of the C-arm 20, that is, the first direction m is the lifting direction in which the detector 30 performs the lifting motion. The driving mechanism 12 may drive the scissor lift mechanism 11 to expand or fold, thereby driving the detector 30 to lift in the first direction m. The lifting device 10 of the present invention has a simple structure, and can drive the detector 30 to move up and down along the first direction m only by driving the plurality of scissor supports 111 to expand or fold along the first direction (specifically, all scissor supports 111 expand or fold synchronously) through the driving mechanism 12, so as to adjust the distance between the detector 30 and the radiation source 40. Based on the unfolding property and folding property of the scissor lift mechanism 11, the direction of the detector 30 along the first direction m can be ensured, and the occupied space of the lift device 10 can be reduced on the premise that the movement range of the detector 30 along the first direction m is unchanged.

With continued reference to fig. 3, two scissor mounts 111 of the scissor lift 11 located on either side of the first direction m directly or indirectly connect the C-arm 20 and the detector 30, respectively, the scissor mounts 111 including a first link arm 1111 and a second link arm 1112, the first link arm 1111 and the second link arm 1112 being arranged crosswise (both in an "X" arrangement) and rotatably connected to each other. Of the two adjacent scissor brackets 111, a first connecting arm 1111 of one scissor bracket 111 and a second connecting arm 1112 of the other scissor bracket 111 are rotatably connected, and a second connecting arm 1112 of one scissor bracket 111 and a first connecting arm 1111 of the other scissor bracket 111 are rotatably connected. For example, referring to fig. 3, two adjacent scissor brackets 111 at the uppermost end are defined as a first scissor bracket D and a second scissor bracket E, respectively, a first connection arm 1111 of the first scissor bracket D and a second connection arm 1112 of the second scissor bracket E are rotatably connected, and a second connection arm 1112 of the first scissor bracket D and a first connection arm 1111 of the second scissor bracket E are rotatably connected. The lengths of the first connection arm 1111 and the second connection arm 1112 in the same scissor bracket 111 are equal, and the lengths of the first connection arm 1111 (or the second connection arm 1112) of each scissor bracket 111 may be equal or different for different scissor brackets 111. For example, the length of the first connection arm 1111 of the first scissor bracket D and the length of the first connection arm 1111 of the second scissor bracket E may be equal to or different from each other, and the length of the first connection arm 1111 of the first scissor bracket D and the length of the first connection arm 1111 of the second scissor bracket E may be equal to or different from each other. Preferably, the rotation axis between the first connection arm 1111 and the second connection arm 1112 of the same scissor bracket 111 is located at an intermediate position of the first connection arm 1111 and the second connection arm 1112.

It can be appreciated that the driving mechanism 12 needs to drive the angle between the first connecting arm 1111 and the second connecting arm 1112 in any one scissor bracket 111 to change to achieve the unfolding or folding of the scissor lift mechanism 11 based on the matching relationship between the first connecting arm 1111 and the second connecting arm 1112 in the scissor bracket 111 and the matching relationship between the first connecting arm 1111 and the second connecting arm 1112 in one of the two adjacent scissor brackets 111. Specifically, the driving mechanism 12 drives the included angle between the first connecting arm 1111 and the second connecting arm 1112 of the scissor bracket 111 to be reduced, the scissor lifting mechanism 11 is unfolded to drive the detector 30 to approach the radiation source 40, and the driving mechanism 12 drives the included angle between the first connecting arm 1111 and the second connecting arm 1112 of the scissor bracket 111 to be increased, and the scissor lifting mechanism 11 is folded to drive the detector 30 to be away from the radiation source 40. It should be noted that the present embodiment is not limited to any rotational connection manner between the first connecting arm 1111 and the second connecting arm 1112, for example, the two may be connected by a hinge, or the two may be connected by a shaft and a hole.

It will be appreciated that the drive mechanism 12 drives the first and second connecting arms 1111, 1112 of the scissor bracket 111 to change the angle therebetween, and the first and second connecting arms 1111, 1112 may change in size along the second direction n, provided that the first and second connecting arms 1111, 1112 are guaranteed to move relative to each other along the second direction n. The second direction n is perpendicular to the first direction m and is parallel to a plane defined by the scissor bracket 111, i.e. parallel to a plane defined by the intersecting first and second connecting arms 1111 and 1112. For example, for the first scissor bracket D, the driving mechanism 12 may drive the upper end of the first connecting arm 1111 (i.e. the end not connected to the second scissor bracket E) and the upper end of the second connecting arm 1112 (i.e. the end not connected to the second scissor bracket E) to move relatively along the second direction n, so as to adjust the angle between the first connecting arm 1111 and the second connecting arm 1112.

In order to allow the first connection arm 1111 and the second connection arm 1112 to move relatively in the second direction n, for example, a configuration may be provided in which, for the scissor type support 111 of the scissor lift mechanism 11 adjacent to the C-arm 20 (i.e., the first scissor type support D), the second connection arm 1112 of the first scissor type support D is fixed differently from the position of the end connected to the adjacent scissor type support 111 in the second direction n (i.e., the position of the end of the first scissor type support D not connected to the second scissor type support E is fixed in the second direction n), the first connection arm 1111 is movable in the second direction n differently from the position of the end connected to the adjacent scissor type support 111 (i.e., the position of the end of the first scissor type support D not connected to the second scissor type support E is adjustable in the second direction n), and for the scissor type support 111 of the scissor type lift mechanism 11 adjacent to the detector 30 (i.e., the lowest scissor type support 111 in fig. 3, defined as the third scissor type support F), the first connection arm 1111 of the third scissor type support F is fixed differently from the position of the end connected to the adjacent scissor type support 111 in the second direction n. So configured, the drive mechanism 12 may apply a force to the scissor bracket 111 in the second direction n such that the scissor bracket 111 decreases in size in the second direction n such that the scissor lift mechanism 11 will expand or such that the scissor bracket 111 increases in size in the second direction n such that the scissor lift mechanism 11 will collapse.

Further, with continued reference to fig. 3, the scissor lift mechanism 11 further includes a first mounting base 112 and a second mounting base 113, the first mounting base 112 being mountable to the C-arm 20 and the second mounting base 113 being connectable to the detector 30. Alternatively, the first and second mounting bases 112 and 113 each have a plate shape. The two scissor brackets 111 of the scissor lifting mechanism 11 located at two sides of the first direction m are respectively connected with the first mounting base 112 and the second mounting base 113, namely, the first scissor bracket D is connected with the first mounting base 112, one end of the first scissor bracket D, which is close to the first mounting base 112, of the first connecting arm 1111 and one end of the second connecting arm 1112, which is close to the first mounting base 112, can move relatively along the second direction n, the third scissor bracket F is connected with the second mounting base 113, and one end of the first connecting arm 1111, which is close to the second mounting base 113, of the third scissor bracket F and one end of the second connecting arm 1112, which is close to the second mounting base 113, can move relatively along the second direction n. The drive mechanism 12 may be mounted on the first mounting base 112, for example.

Preferably, the second mounting base 113 is configured as at least part of the detector 30, such as the second mounting base is configured as one of the end faces of the flat-plate detector 30, in other words, the third scissor bracket F may be directly connected to the flat-plate detector 30.

Further, in the scissor lift mechanism 11 near the scissor bracket 111 of the C-arm 20 (i.e., the first scissor bracket D), the second connecting arm 1112 is rotatably connected to the first mounting base 112, the first connecting arm 1111 is rotatably connected to the driving mechanism 12, in the scissor bracket 111 of the scissor lift mechanism 11 near the detector 30 (i.e., the third scissor bracket F), the first connecting arm 1111 is rotatably connected to the second mounting base 113, the second connecting arm 1112 is rotatably connected to the second mounting base 113, and the second connecting arm 1112 is movably connected to the second mounting base 113 at an end different from the end connecting the adjacent scissor brackets 111.

As a specific implementation detail, the lifting device 10 further includes a first connection block 15, a second connection block 16, and a second connection block 16, the second connection arm 1112 of the first scissor bracket D is rotatably connected with the first connection block 15, the first connection block 15 is fixedly connected with the first mounting base 112, the first connection arm 1111 of the first scissor bracket D is rotatably connected with the driving mechanism 12, and the driving mechanism 12 can drive one end of the first connection arm 1111 of the first scissor bracket D, which is close to the first mounting base 112, to move along the second direction n. The second connection block 16 is fixed to the second mounting base 113, the third connection block 17 is movably mounted to the second mounting base 113 along the second, the first connection arm 1111 of the third scissor bracket F is rotatably connected to the second connection block 16, and the second connection arm 1112 is rotatably connected to the third connection block 17.

For the driving mechanism 12, the driving mechanism 12 includes a driving member 121 and a driven member 122 connected to the driving member 121, the driving member 121 extends along the second direction n, and the driving member 121 may rotate about its own axis, and the rotational motion of the driving member 121 may be converted into a linear motion of the driven member 122 along the second direction n, where the driven member 122 is rotatably connected to the first connecting arm 1111 or the second connecting arm 1112 of one of the scissor brackets 111, such as the driven member 122 is rotatably connected to the first connecting arm 1111 of the first scissor bracket D.

Further, the driving mechanism 12 further includes a motor 123, and the motor 123 is connected to the driving member 121 to drive the driving member 121 to rotate. Preferably, fig. 4 is a top view of the lifting device according to an embodiment of the present invention along a first direction, referring to fig. 3 and 4, the driving mechanism 12 further includes a transmission unit 124, the motor 123 is in transmission connection with the driving member 121 through the transmission unit 124 to transmit torque to the driving member 121, and the transmission unit 124 is used to arrange the motor 123 in a direction perpendicular to an axial direction of the driving member 121, so as to save space occupied by the whole device along the first direction m. The transmission unit 124 may be, for example, a drive fit form of one or at least two of a timing belt, a gear member, a worm gear, and the like.

In an embodiment, the driving mechanism 12 may be configured based on the working principle of a ball screw, specifically, at least part of the driving member 121 is configured as a screw, at least part of the driven member 122 is configured as a nut, and the driven member 122 is in threaded connection with the screw in the driving member 121. Further, the driving member 121 is mounted on the first mounting base 112 through the fourth connection block 18.

Further, with continued reference to fig. 3 and 4, the lifting device 10 includes at least three protective substrates 13, the protective substrates 13 surround the scissor lifting mechanism 11 and are barrel-shaped or shell-shaped along a first direction m, the at least three protective substrates 13 are sequentially and movably lapped along the first direction m (i.e. overlapping edges are arranged between two adjacent protective substrates 13) and are sequentially arranged along a second direction n, the at least three protective substrates 13 are matched with each other to cover each scissor bracket 111, the two protective substrates 13 positioned at two sides of the first direction m are respectively used for connecting the C-shaped arm 20 and the detector 30, and further, the two protective substrates 13 positioned at two sides of the first direction m are respectively and fixedly connected with the first mounting base 112 and the second mounting base 113, so that along with the folding or unfolding movement of the scissor lifting mechanism 11, the second mounting base 113 drives the protective substrates 13 at the lower end to move together, thereby realizing the relative movement between the adjacent protective substrates 13. On the one hand, each protective base 13 can cover each scissor bracket 111 inside to play a role in protecting and improving the attractiveness of the lifting device, on the other hand, two protective bases 13 positioned on two sides of the first direction m are respectively connected with the C-shaped arm 20 and the detector 30, and two ends of the scissor lifting mechanism 11 are connected with the C-shaped arm 20 and the detector 30, so that each protective base 13 also plays a role in fixing and supporting, and the structural stability of the lifting device 10 is ensured.

Typically, three protective substrates 13 are actually generally configured, namely, a first protective substrate 131, a second protective substrate 132 and a third protective substrate 133, the first protective substrate 131, the second protective substrate 132 and the third protective substrate 133 are sequentially far away from the scissor lift mechanism 11 along the second direction n, the two protective substrates 13 located in the first direction m are the first protective substrate 131 and the third protective substrate 133, the first protective substrate 131 is connected with the detector 30, and the third protective substrate 133 is connected with the C-arm 20. In the prior art, the movement of the second protective substrate 132 is random, for example, referring to fig. 1, if the C-arm 20 rotates around the axis H to enable the detector 30 to be located below the radiation source 40, the lifting device 10 drives the detector 30 to move upwards, and the second protective substrate 132 is movably connected to the first protective substrate 131 and the third protective substrate 133, so that the second protective substrate 132 may move downwards due to gravity, or even the second protective substrate 132 may fall off, which affects the safety of medical examination.

Based on this, one of the scissor brackets 111 disposed between the scissor brackets 111 located at both sides of the first direction m is a reference scissor bracket G (i.e., one of the scissor brackets 111 located at the first scissor bracket D and the third scissor bracket F is selected as the reference scissor bracket G), a rotation axis between the first connection arm 1111 and the second connection arm 1112 of the reference scissor bracket G is a reference axis G1, the reference axis G1 is fixedly connected with the second protection base 132, and the first protection base 131 is provided with a through hole 1310 for the reference axis G1 to move along the first direction m. In this way, the movement of the second protective base 132 and the movement of the scissor lift mechanism 11 may be synchronized together, and further, the movement of the second protective base 132 and the movement of the first protective base 131 may be synchronized together, referring to fig. 3, for example, the scissor lift mechanism 11 may be unfolded, the first protective base 131 may move downward, and since the second protective base 132 is fixedly connected to the reference axis G1 and the reference axis G1 may move up and down in the through hole 1310, the scissor lift mechanism 11 may drive the second protective base 132 to move downward, and it may be understood that the movement stroke of the first protective base 131 along the first direction m and the movement stroke of the second protective base 132 along the first direction m are multiplied based on the number of scissor supports 111 and the positions of the scissor supports 111 connected to the second protective base 132. Preferably, the number of the scissor brackets 111 is an odd number, and the scissor bracket 111 disposed at the intermediate position is a reference scissor bracket G.

Optionally, the lifting device 10 further comprises a guiding structure comprising a guide rail 141 extending along the first direction m and a slide 142 movably connected to the guide rail 141, between two adjacent protective substrates 13, one of which is provided with the guide rail 141 and the other of which is provided with the slide 142, so as to realize the mobile connection between the two adjacent protective substrates 13.

Fig. 5 is a schematic view of a medical apparatus in the prior art, referring to fig. 5, in order to ensure that the detector 30 has a sufficient lifting movement range to satisfy SID, a lifting structure 70 in the prior art needs a larger space in the lifting direction to ensure that the detector 30 has a sufficient movement stroke, and generally the lifting structure 70 needs to be mounted on an end face of the C-arm (here, an end face of the C-arm 20 along its circumferential direction, that is, an end face along the arc direction of the C-arm 20, and not on an inner side end of the C-arm 20) to ensure that there is a sufficient distance between the radiation source 40 and an imaging plane of the detector 30. In order to meet clinical requirements, the C-arm 20 needs to perform a slip ring movement, the C-arm 20 needs to have a circular movement stroke of at least 180 ° according to its own radian direction, the circular movement stroke of 180 ° requires that the arc length of the C-arm 20 is at least 1/2 of the circumference, the lifting structure 70 in the prior art is mounted on one end face of the C-arm in the radian direction, so that the arc length of the other end (the end where the radiation source 40 is mounted) of the C-arm 20 needs to be prolonged to ensure that the total arc length of the C-arm 20 corresponds to 180 ° angle requirement, which results in that the end where the radiation source 40 is mounted of the C-arm 20 protrudes outwards (as shown at B in fig. 1), which is not only detrimental to the overall aesthetic quality, but also has a certain influence on the slip ring movement of the C-arm 20 and the movement posture of the C-arm 20, such as the protruding portion at B easily hits nearby objects, even medical staff when the C-arm 20 is in a vertical state and the C-arm 20 moves circumferentially around.

Referring to fig. 1, based on the mechanical characteristics of the scissor lift mechanism 11 in the lift apparatus 10 of the present embodiment, the detector 30 of the present embodiment may be mounted on the intrados of the C-arm 20 through the lift apparatus 10 under the premise of ensuring the movement range of the detector 30 and not increasing the space volume of the lift apparatus 10. Specifically, the detector 30 may be mounted to one inner side end of the intrados of the C-arm 20 by the lifting device 10. And the radiation source 40 is mounted on the other opposite inboard end of the intrados of the C-arm 20. In this way, on one hand, the arc length of the end, on which the detector 30 is mounted, of the C-shaped arm 20 can be longer, and on the other hand, the travel requirement of the slip ring motion of the C-shaped arm 20 can be met without prolonging the arc length of the end, on which the radiation source 40 is mounted, of the C-shaped arm 20, the problem that the position B in fig. 5 is protruded is solved, the risk that the end, on which the radiation source 40 is mounted, of the C-shaped arm 20 collides with medical staff or objects is reduced, and the safety factor is improved.

In summary, in the medical equipment and the lifting device thereof provided by the invention, the lifting device is applied to the medical equipment, the medical equipment comprises the C-shaped arm and the detector, the lifting device comprises the scissor type lifting mechanism and the driving mechanism connected with the scissor type lifting mechanism, two ends of the scissor type lifting mechanism along the first direction are respectively used for connecting the C-shaped arm and the detector of the medical equipment, and the driving mechanism can drive the scissor type lifting mechanism to unfold or fold along the first direction. So configured, the lifting device of the invention has simple structure, and the detector can be driven to move up and down along the first direction only by driving the scissor lifting mechanism to be unfolded or folded along the first direction through the driving mechanism, thereby adjusting the distance between the detector and the ray source. Based on the unfolding property and folding property of the scissor type lifting mechanism, the trend of the detector along the first direction can be ensured, and the occupied space of the lifting device can be reduced on the premise that the movement range of the detector along the first direction is unchanged.

While the invention has been described in terms of preferred embodiments, the above embodiments are not intended to limit the invention. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art without departing from the scope of the technology, or the technology can be modified to be equivalent. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A lifting device (10), characterized by comprising:

A scissor lift mechanism (11) comprising a plurality of scissor supports (111) connected in sequence along a first direction (m), wherein the scissor supports (111) along both sides of the first direction (m) are respectively used for connecting a C-shaped arm (20) and a detector (30) of a medical device;

And a driving mechanism (12) connected to the scissor lift mechanism (11) and configured to drive the plurality of scissor holders (111) to be unfolded or folded in the first direction (m).

2. The lifting device (10) according to claim 1, characterized in that the scissor bracket (111) comprises a first connecting arm (1111) and a second connecting arm (1112), the first connecting arm (1111) and the second connecting arm (1112) being arranged crosswise and rotatably connected to each other.

3. Lifting device (10) according to claim 2, characterized in that in the scissor lift mechanism (11) near the scissor supports (111) of the C-arm (20), the second connecting arm (1112) is fixed in position along a second direction (n) different from connecting an end of an adjacent scissor support (111), the first connecting arm (1111) is movable along the second direction (n) different from connecting an end of an adjacent scissor support (111);

The second direction (n) is perpendicular to the first direction (m), and the second direction (n) is parallel to a plane in which the scissor bracket (111) is located.

4. A lifting device (10) according to claim 3, characterized in that the scissor lift mechanism (11) further comprises a first mounting base (112) and/or a second mounting base (113);

In the scissor bracket (111) of the scissor lift mechanism (11) adjacent to the C-arm (20), the second connecting arm (1112) is rotatably connected with the first mounting base (112), the first connecting arm (1111) is rotatably connected with the driving mechanism (12), and/or,

In the scissor bracket (111) of the scissor lift mechanism (11) which is close to the detector (30), the first connecting arm (1111) is rotatably connected with the second mounting base (113), the second connecting arm (1112) is rotatably connected with the second mounting base (113), and the second connecting arm (1112) is movably connected with the second mounting base (113) at one end different from the end adjacent to the scissor bracket (111).

5. The lifting device (10) according to claim 2, wherein the driving mechanism (12) comprises a driving member (121) and a driven member (122) connected to the driving member (121), wherein the rotational movement of the driving member (121) is converted into a linear movement of the driven member (122) along a second direction (n), wherein the driven member (122) is rotatably connected to the first connecting arm (1111) or the second connecting arm (1112) of one of the scissor supports (111), wherein the second direction (n) is perpendicular to the first direction (m), and wherein the second direction (n) is parallel to the plane in which the scissor supports are located.

6. The lifting device (10) according to claim 5, characterized in that at least part of the driving element (121) is configured as a screw, the driven element (122) being in threaded connection with the screw in the driving element (121).

7. Lifting device (10) according to claim 2, characterized in that the lifting device (10) comprises at least three protective matrices (13), the protective matrices (13) surrounding the scissor lift mechanism (11) and being barrel-shaped or shell-shaped along the first direction (m), at least three protective matrices (13) being movably overlapped in sequence along the first direction (m) and being arranged in sequence along a second direction (n), at least three protective matrices (13) cooperating with each other to house each scissor support (111), two protective matrices (13) located on both sides of the first direction (m) being used for connecting the C-arm (20) and the detector (30), respectively;

The second direction (n) is perpendicular to the first direction (m), and the second direction (n) is parallel to a plane in which the scissor bracket (111) is located.

8. The lifting device (10) according to claim 7, wherein the lifting device (10) comprises three protective matrices (13), a first protective matrix (131), a second protective matrix (132) and a third protective matrix (133), respectively, the first protective matrix (131), the second protective matrix (132) and the third protective matrix (133) being successively distant from the scissor lift mechanism (11) along a second direction n;

Wherein, be located between the scissors formula support (111) of both sides of first direction (m) one of them scissors formula support (111) is benchmark scissors formula support (G), the axis of rotation between first linking arm (1111) and second linking arm (1112) of benchmark scissors formula support (G) is reference shaft (G1), reference shaft (G1) with second protection base member (132) fixed connection, first protection base member (131) are equipped with supplies reference shaft (G1) are followed through-hole (1310) that first direction (m) removed.

9. The lifting device (10) according to claim 1, characterized in that the lifting device (10) further comprises a guiding mechanism comprising a guide rail (141) extending in the first direction (m) and a slider (142) movably connected to the guide rail (141), between two adjacent protective substrates (13), one of which mounts the guide rail (141) and the other of which mounts the slider (142).

10. A medical device, comprising:

A C-arm (20) having two opposite inboard ends, both of said inboard ends being located on an intrados of said C-arm (20);

a radiation source (40) mounted on one of the inboard ends of the C-arm (20);

A detector (30);

The lifting device (10) according to any one of claims 1-9, wherein the scissor supports (111) on both sides of the scissor lift mechanism (11) of the lifting device (10) in the first direction (m) are connected to the detector (30) and to the other inner end of the C-arm (20), respectively.