CN221061144U

CN221061144U - Limb fixing device

Info

Publication number: CN221061144U
Application number: CN202321767830.8U
Authority: CN
Inventors: 吴峣; 张道俭
Original assignee: Peking University First Hospital
Current assignee: Peking University First Hospital
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-06-04
Anticipated expiration: 2033-07-06

Abstract

The utility model relates to the technical field of medical equipment, and provides a limb fixing device, which comprises: the first support piece is provided with a first concave part, the second support piece is provided with a second concave part, the first support piece and the second support piece are oppositely arranged, the first concave part and the second concave part are oppositely arranged and are concave towards directions deviating from each other, and the first concave part and the second concave part are matched to form a first support space for accommodating limbs; the first clamping assembly is movably connected with the first concave portion, the second clamping assembly is movably connected with the second concave portion, and the first clamping assembly and the second clamping assembly are used for clamping the limb. The limb fixing device can clamp and fix limbs in different forms in the first supporting space.

Description

Limb fixing device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a limb fixing device.

Background

This section provides merely background information related to the present disclosure and is not necessarily prior art.

In bone surgery, depending on the surgical requirements, it is often necessary to swing the limb out of a number of different positions in order to facilitate the doctor's surgery, especially in hip surgery, knee replacement surgery, shoulder repair surgery and severe traumatic fracture surgery of the extremities, with strict requirements on the relative position and relative angle of the limb and the torso.

However, in the current orthopedic operation, various body positions are mainly put out with the assistance of both hands of an assistant through a lower limb fixing machine which is rigidly connected with an operation table; because the mobility of the limb fixing instrument is poor, the device is only suitable for operations requiring simple body position, and when an assistant puts the body position by two hands, on one hand, the device is high in physical strength and difficult to maintain for a long time, and in addition, the general body position of the limb is mainly judged by means of personal experience, so that the accuracy is poor.

Disclosure of utility model

The utility model aims to at least solve the technical problem that the existing fixing device can not fix various body positions of limbs, and the aim is realized by the following technical scheme:

According to the present utility model, there is provided a limb fixation apparatus including:

The first support piece is provided with a first concave part, the second support piece is provided with a second concave part, the first support piece and the second support piece are oppositely arranged, the first concave part and the second concave part are oppositely arranged and are concave towards directions deviating from each other, and the first concave part and the second concave part are matched to form a first support space for accommodating limbs;

The first clamping assembly is movably connected with the first concave portion, the second clamping assembly is movably connected with the second concave portion, and the first clamping assembly and the second clamping assembly are used for clamping the limb.

According to the limb fixing device, the first concave part of the first supporting piece and the second concave part of the second supporting piece are arranged oppositely and are recessed towards the direction away from each other to form the first supporting space, the first clamping component and the second clamping component can clamp and fix the limb in the first supporting space, and when the shape of the limb changes, the first clamping component and the second clamping component can clamp the limb in a new shape again in the first supporting space and keep a fixing position in the first supporting space.

In addition, the limb fixation device according to the present utility model may also have the following additional technical features:

In some embodiments of the present utility model, the first clamping assembly includes a plurality of first rod-shaped clamping members, each of the plurality of first rod-shaped clamping members being independently disposed from each other and movable in a first direction; and/or the number of the groups of groups,

The second clamping assembly comprises a plurality of second rod-shaped clamping pieces which are mutually independent and can move along the first direction;

Wherein the first direction is any direction.

In some embodiments of the utility model, the limb fixation device includes an elastic pad,

The elastic pad is arranged at one end of the first rod-shaped clamping pieces, which is in contact with the limb, and the elastic pad is arranged at one end of the second rod-shaped clamping pieces, which is in contact with the limb.

In some embodiments of the utility model, the first recess and the second recess are each circular arc-shaped.

In some embodiments of the present utility model, the first recess is provided with a first through hole, a plurality of first sliding grooves are provided in the first through hole along the first direction, and the first rod-shaped clamping member is adapted to slide along the first sliding grooves;

The second concave part is provided with a second through hole, the second through hole is provided with a plurality of second sliding grooves in the first direction, and the second rod-shaped clamping piece is suitable for sliding in the second sliding grooves;

The limb fixation device further comprises a locking assembly for locking the first rod-shaped clamp in the first runner and locking the second rod-shaped clamp in the second runner.

In some embodiments of the present utility model, the first plurality of sliding grooves are disposed in the first through hole in sequence in a direction perpendicular to the first direction, and the second plurality of sliding grooves are disposed in the second through hole in sequence.

In some embodiments of the utility model, the first support space is an annular closed region in the circumferential direction.

In some embodiments of the present utility model, the first support member is provided with a first connection end at both sides of the first recess, and the second support member is provided with a second connection end at both sides of the second recess, and the first connection end is detachably connected with the second connection end.

In some embodiments of the utility model, the limb fixation apparatus further comprises a first auxiliary adjustment assembly and a second auxiliary adjustment assembly;

The first auxiliary adjusting component is connected with the first connecting end, and the second auxiliary adjusting component is connected with the second connecting end.

In some embodiments of the utility model, the limb fixation device further comprises a first level and a second level,

The first concave part and the second concave part are surrounded to form a first plane, the first level gauge is arranged on the first plane, the measuring plane of the first level gauge is parallel to the first plane,

The second level is arranged on the first supporting piece or the second supporting piece, and the measuring plane of the second level is perpendicular to the first plane.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

Figures 1 and 2 schematically illustrate one embodiment of a first support of the limb fixation apparatus of the present utility model;

Figures 3 and 4 schematically illustrate one embodiment of a second support of the limb fixation apparatus of the present utility model;

Figure 5 schematically illustrates one embodiment of a limb fixation device of the present utility model;

fig. 6 is a top view of fig. 1.

The reference numerals are as follows:

100. the first supporting piece 110, the first concave part 120, the first connecting end 130, the first through hole 140 and the first chute;

200. The second supporting piece 210, the second concave part 220, the second connecting end 230, the second through hole 240, the second sliding groove 300 and the first supporting space;

400. A first clamping assembly 410, a first rod-shaped clamp;

500. A second clamping assembly 510, a second rod-shaped clamping member 520, and an elastic pad;

600. A locking assembly 610, a first auxiliary adjustment assembly 620, a second auxiliary adjustment assembly 630, a grip;

640. first level, 650, second level.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Accordingly, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

It should be noted that "distal end" and "proximal end" are used as terms of orientation, which are terms commonly used in the field of interventional medical devices, where "distal end" refers to an end that is away from an operator during a surgical procedure and "proximal end" refers to an end that is near the operator during a surgical procedure. Axial, refers to a direction parallel to the line connecting the distal center and the proximal center of the medical instrument; radial refers to a direction perpendicular to the axial direction.

Figures 1 and 2 schematically illustrate one embodiment of a first support of the limb fixation device of the present utility model, the device comprising a first support 100, as shown in figures 1 and 2, the first support 100 having a first recess 110, the recessed area of the first recess 110 being part of a first support space 300, the limb being held within the recessed area of the first recess 110; the limb fixation device of the present utility model further includes a first clamping assembly 400, where the first clamping assembly 400 is movably connected with the first concave portion 110 to adapt to fixation of different limbs, or for the same limb, when the relative posture of the limb changes, the first clamping assembly 400 can relatively move with respect to the first concave portion 110, and still clamp the limb in the concave region of the first concave portion 110.

The first clamping assembly 400 includes a plurality of first rod-shaped clamping members 410, where the plurality of first rod-shaped clamping members 410 can move along a first direction independently, so that the plurality of first rod-shaped clamping members 410 can apply an acting force at a plurality of positions of a limb, which is beneficial to more firmly fixing the limb.

As shown in fig. 1 and 2, the first concave portion 110 has a circular arc shape, and in addition, the first concave portion 110 may have a semicircular shape for fixing a limb in a circular arc or semicircular area, and further, with reference to fig. 3 and 4, fig. 3 and 4 schematically illustrate an embodiment of a second support member for a limb fixing device according to the present utility model, the second support member 200 is provided with a second concave portion 210, and the first concave portion 110 and the second concave portion 210 are disposed opposite to each other and are recessed in directions facing away from each other, so as to form a first support space 300 for fixing a limb.

The first concave portion 110 and the second concave portion 210 are disposed opposite to each other to form a first supporting space 300 that is closed in a ring shape in the circumferential direction, and the first clamping assembly 400 and the second clamping assembly 500 can clamp and fix the limb in the first direction in the first supporting space 300.

In this embodiment, the first recess 110 is provided with a first through hole 130, the second recess 210 is provided with a second tube through hole, the first clamping assembly 400 can move in the first direction in the first through hole 130, and the second clamping assembly can move in the first direction in the second tube through hole, can apply force to the limb on both sides of the limb, and can fix the limb in the first direction.

The first direction can be any direction of the space, and the limb can be fixed in any direction of the space according to actual needs, so that the limb fixing device has good applicability and can fix the limb in different directions in different environments; the movable connection manner of the first clamping assembly 400 and the first concave portion 110, the movable connection manner of the second clamping assembly 500 and the second concave portion 210, the limb fixing device of the present utility model is not limited, for example, a sliding rail or a sliding groove is separately provided between the first clamping assembly 400 and the first concave portion 110, or between the second clamping assembly 500 and the second concave portion 210, and according to actual needs, the first clamping assembly 400 and the second clamping assembly 500 slide along the sliding rail or the sliding groove and are fixed at a certain position of the sliding rail or the sliding groove.

As shown in fig. 1 to 4, in the present embodiment, a first through hole 130 is provided in the first recess 110 of the first support 100, the first through hole 130 restricts the movement of the first clamping assembly 400 in the first direction, a second through hole 230 is provided in the second recess 210 of the second support 200, and the second through hole 230 restricts the movement of the second clamping assembly 500 in the first direction.

A plurality of first sliding grooves 140 can be further arranged in the first through hole 130 along the first direction, the first sliding grooves 140 are used for sliding the first clamping assembly 400, a plurality of second sliding grooves 240 are arranged in the second through hole 230 along the first direction, and the second sliding grooves 240 are used for sliding the second clamping assembly 500, so that relative movement between the first clamping assembly 400 and the second clamping assembly 500 is facilitated, the movement amount of the first clamping assembly 400 and the second clamping assembly 500 can be accurately adjusted, different postures of limbs can be accurately adjusted, and particularly when an operation is performed, the limb fixing device has the advantages of being capable of accurately adjusting different positions of the limbs, and the smooth completion of the operation is facilitated.

The limb fixation device of the present utility model is further provided with a locking assembly 600 for fixing the first clamping assembly 400 at any position of the first sliding slot 140 and fixing the second clamping assembly 500 at any position of the second sliding slot 240, and thus, the limb fixation device of the present utility model has the advantages of locally adjusting the limb indexing and fixing the indexed limb.

When the first clamping assembly 400 is configured as a plurality of first rod-shaped clamping members 410 and the second clamping assembly 500 is configured as a plurality of second rod-shaped clamping members 510, a plurality of first sliding grooves 140 may be disposed in the first through hole 130, and each first rod-shaped clamping member 410 corresponds to one first sliding groove 140 and slides along the first direction; a plurality of second sliding grooves 240 are arranged in the second tube through hole, each second rod-shaped clamping piece 510 corresponds to one second sliding groove 240 and slides along the first direction, and the first rod-shaped clamping piece 410 and the second rod-shaped clamping piece 510 can clamp and fix the limb at two sides of the limb.

Accordingly, an elastic pad 520 is disposed at one end of the plurality of second rod-shaped holders 510, and the plurality of second rod-shaped holders 510 are in contact with the limb through the elastic pad 520, so that the second rod-shaped holders 510 are prevented from damaging a part of the limb due to the excessive force applied.

In an embodiment of the present utility model, the plurality of first sliding grooves 140 are sequentially disposed in the first through hole 130 and the plurality of second sliding grooves 240 are sequentially disposed in the second through hole 230 in a direction perpendicular to the first direction, and in this embodiment, the plurality of first rod-shaped holders 410 slide in the plurality of first sliding grooves 140 in the same plane, and in this plane, a clamping force is provided to a plurality of positions of the limb, and accordingly, the plurality of second rod-shaped holders 510 slide in the plurality of second sliding grooves 240 in the same plane, so that the plurality of first rod-shaped holders 410 and the plurality of second rod-shaped holders 510 relatively move in the same plane to clamp the limb with different shapes.

In an embodiment of the present utility model, the first support 100 is provided with the first connection end 120 at both sides of the first recess 110, and the second support 200 is provided with the second connection end at both sides of the second recess 210, and the first connection end 120 and the second connection end are detachably connected to fix the first recess 110 and the second recess 210. Because the first connection end 120 and the second connection end are fixed, both sides of the first recess 110 and the second recess 210 can be fixed, and the overall rigidity and stability of the limb fixation device are improved.

In one embodiment of the present invention, the limb fixation apparatus further includes a first auxiliary adjustment assembly 610 and a second auxiliary adjustment assembly 620; the first auxiliary adjusting component 610 is connected to the first connecting end 120, and the second auxiliary adjusting component 620 is connected to the second connecting end; by providing the first auxiliary adjusting component 610 and the second auxiliary adjusting component 620, the first supporting component 100 and the second supporting component 200 can be adjusted more conveniently, for example, the first auxiliary adjusting component 610 can be configured as an adjusting rod, and a larger acting force can be provided for the first supporting component 100 through the adjusting rod so as to adapt to the requirements of different postures of limbs, accordingly, the second auxiliary adjusting component 620 can be configured as an adjusting rod, and the first supporting component 100 and the second supporting component 200 can be adjusted in cooperation with the first auxiliary adjusting component 610, and by providing the first auxiliary adjusting component 610 and the second adjusting component, acting force can be applied to the first supporting component 100 and the second supporting component 200 in various directions so as to change different positions.

In one embodiment of the utility model, the limb fixation apparatus further includes a first level 640 and a second level 650; the first level 640 is disposed in a first plane formed by the first recess 110 and the second recess 210, and a measurement plane of the first level 640 is parallel to the first plane.

The second level 650 is disposed on the first support 100 or the second support 200, and a measurement plane of the second level 650 is perpendicular to the first plane. In this embodiment, when the first support 100 and the second support 200 are adjusted, the first level 640 and the second level 650 may be combined, and the direction and the angle may be precisely controlled, so as to achieve the purpose of locally and precisely adjusting the limb.

In summary, in the limb fixation device according to the present utility model, the first recess 110 of the first support member 100 and the second recess 210 of the second support member 200 form the first support space 300 in the circumferential direction, wherein the first clamping assembly 400 can move relative to the first recess 110, and the second clamping assembly 500 can move relative to the second recess 210, so that the first clamping assembly 400 and the second clamping assembly 500 can be adjusted according to different shapes of the limb, and the limb is adjusted and clamped according to actual needs in the operation process.

The limb fixation device of the present utility model, the first clamping assembly 400 and the first recess 110 of the first support member 100, and the second clamping assembly 500 and the second recess 210 of the second support member 200, may be configured differently so as to have good mobility.

The first support member 100 may further be provided with a first auxiliary adjusting rod, and the second support member 200 may be provided with a second auxiliary adjusting rod, so that the first support member 100 and the second support member 200 have better fixing effect and accuracy.

Therefore, the limb fixing device can be used as a hand-held limb intraoperative positioning fixing device, has good activity on one hand and is superior to the current hard fixing instrument in flexibility, and on the other hand, the device can effectively fix the limb, and the handle 630 has labor-saving effect and better fixing effect and accuracy than the effect of directly grasping the limb by two hands.

Fig. 5 schematically illustrates an embodiment of the limb fixing device of the present utility model, as shown in fig. 5, the limb fixing device of the embodiment of the present utility model is an intraoperative limb indexing fixing device which can be used for orthopedic surgery, the device can be attached to the surface of a limb by a sliding rail, and is fixed relative to the limb after a bolt is screwed, then an operator can grasp a handle 630 on the outer side of the device, and observe a level to accurately adjust the position and rotation angle of a lower limb, thereby saving labor, improving efficiency, and facilitating operation.

Referring to fig. 6, the limb fixation apparatus according to the present utility model is used for indexing and fixing a limb during surgery, and comprises a first support 100 and a second support 200, wherein the first support 100 and the second support 200 are fixedly connected through a first connecting end 120 and a second connecting end; wherein the first and second connection ends 120 and 200 may be provided as bolt assemblies for detachably connecting the first and second supports 100 and 200.

The limb fixation apparatus according to the present embodiment further includes a plurality of first rod-shaped clamps 410, a plurality of second rod-shaped clamps 510, and first and second sliding grooves 140 and 240, and a locking assembly 600, wherein the plurality of first rod-shaped clamps 410 and 140 in the first support 100, the locking assembly 600, and the plurality of second rod-shaped clamps 510 and 240 in the second support 200 form a rod-shaped clamping system for supporting and fixing a limb.

In the limb fixation device according to the present embodiment, when the locking assembly 600 is tightened, the spacing between the plurality of first sliding grooves 140 in the first through hole 130 is reduced, and the first rod-shaped clamping member 410 is fixed in the first sliding groove 140, and when the locking assembly 600 is loosened, the spacing between the first sliding grooves 140 is increased, and the first rod-shaped clamping member 410 is loosened, so that the first rod-shaped clamping member 410 can freely slide in the clamping groove.

In one embodiment, a silica gel pad is disposed at one end of the first rod-shaped clamping member 410, and the first rod-shaped clamping member 410 is tightly fitted to the limb through the silica gel pad to adapt to the irregular shape of the limb.

When the operator tightens the locking assembly 600 to reduce the interval between the first sliding grooves 140 and clamps and fixes the first rod-shaped clamping piece 410, the first rod-shaped clamping piece 410 and the first sliding grooves 140 are relatively fixed under the action of static friction force, and the limbs, the first rod-shaped clamping piece 410 and the first rod-shaped clamping piece 410 are tightly packed and closely adhered by silica gel and are relatively fixed under the action of static friction force; at this time, the body and the silica gel pad at one end of the first rod-shaped clamping member 410, the first sliding chute 140, the locking assembly 600, the first supporting member 100, the second supporting member 200, the second rod-shaped clamping member 510, the second sliding chute 240, the first auxiliary adjusting assembly 610 and the second auxiliary adjusting assembly 620 form a whole, and an operator can adjust the body position and angle when moving the handle 630, thereby facilitating the operation.

The silica gel pad at one end of the first rod-shaped clamping member 410 of the limb fixing device in this embodiment can be deformed to fit the limb when contacting the limb, so that the pressure intensity of the limb can be reduced, pressure sores are avoided, and a better fixing effect is provided.

The limb fixing device in the embodiment is further provided with a front level, namely a first level 640, and a side level, namely a second level 650, for indicating the deflection angles of the limb fixing device on the x axis and the y axis, so as to be convenient for recording the limb posture suitable for operation.

In summary, according to the limb fixing device provided by the utility model, the limb is fixed by the combination of the first rod-shaped clamping piece 410 and the silica gel pad of the first rod-shaped clamping piece 410, the limb fixing device has a good effect of fitting irregular limb, and the application range is wide and is superior to the existing fixing device; secondly, the method of gripping by the grip 630 is superior to the existing bolt-fixed instrument in terms of flexibility and convenience; and the detachable level gauge is arranged, so that the rotation angle is convenient to measure, the direction is indicated, an operator is convenient to use, and the use effect is better than that of the existing fixing device of the level gauge.

Referring to fig. 5 and 6, the body of the limb fixation apparatus of the present utility model is composed of a first support 100, a second support 200, a first clamping assembly 400, a second clamping assembly 500, a locking assembly 600, a first sliding chute 140, a second sliding chute 240, and a first auxiliary adjustment assembly 610, a second auxiliary adjustment assembly 620; the materials mainly comprise medical stainless steel; the elastic pad 520 at one end of the first rod-shaped holder 410 is composed of medical silica gel, and the grip 630 is made of rubber; a detachable front level and a detachable side level are fixed to the first support 100 or the second support 200.

The operation mode and the function of the limb fixation device of the utility model are specifically described as follows:

In the limb fixing device of the present utility model, when an operator needs to fix a limb with the device during operation, the limb is sleeved between the first support 100 and the second support 200, the first rod-shaped clamping member 410 is pushed after the position is selected, the silica gel pad at the front end of the first rod-shaped clamping member 410 is pressed to fit the limb, then the locking component 600 is screwed to enable the first chute 140 to be directly contacted and pressed with the first rod-shaped clamping member 410, static friction force is generated to enable the first chute 140 to be relatively fixed with the first rod-shaped clamping member 410, at this time, the first rod-shaped clamping member 410 and the first chute 140 are relatively fixed under the action of the static friction force, and the silica gel pad at one end of the limb, the first rod-shaped clamping member 410 and the silica gel pad at one end of the first rod-shaped clamping member 410 are tightly adhered and relatively fixed under the action of the static friction force. At this time, the limbs and the silica gel pads at one ends of the first and second rod-shaped holders 410 and 510, the first and second sliding grooves 140 and 240, the locking assembly 600, the first and second supporting members 100 and 200, the first and second auxiliary adjusting assemblies 610 and 620 form a unit, and an operator can adjust the positions and angles of the limbs under the direction of the front and side levels when moving the grip 630, thereby facilitating the operation.

When the clamping part needs to be replaced in the operation, the locking drilling is unscrewed, so that the space between the first chute 140 and the first rod-shaped clamping piece 410, the space between the second chute 240 and the second rod-shaped clamping piece 510 is increased, the friction force is reduced, sliding occurs, at the moment, the friction force between the silica gel pad at one end of the first rod-shaped clamping piece 410 and one end of the second rod-shaped clamping piece 510 and the limb is reduced, a gap occurs, and the device is separated from the limb and can find the next fixing point.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A limb fixation apparatus, the limb fixation apparatus comprising:

2. The limb fixation device of claim 1 wherein the body member is configured to move between a closed position,

The first clamping assembly comprises a plurality of first rod-shaped clamping pieces which are mutually independent and can move along a first direction; and/or the number of the groups of groups,

Wherein the first direction is any direction.

3. The limb fixation device of claim 2 wherein the limb fixation device comprises an elastic pad,

4. A limb fixation device according to claim 3, wherein the first recess and the second recess are each circular arc shaped.

5. The limb fixation device of claim 4 wherein the first recess is provided with a first through hole, a plurality of first runners are provided in the first direction within the first through hole, the first rod-like clip being adapted to slide along the first runners;

6. The limb fixation device of claim 5 wherein the first plurality of runners are disposed in sequence in the first through-hole and the second plurality of runners are disposed in sequence in the second through-hole in a direction perpendicular to the first direction.

7. The limb fixation device of claim 1 wherein the first support space is an annular closed region in the circumferential direction.

8. The limb fixation device of claim 7 wherein the body member is configured to move between a closed position,

The first support piece is in the both sides of first concave part all are equipped with first link, the second support piece is in the both sides of second concave part all are equipped with the second link, first link with the connection can be dismantled to the second link.

9. The limb fixation device of claim 8 wherein the limb fixation device further comprises a first auxiliary adjustment assembly and a second auxiliary adjustment assembly;

10. The limb fixation device of claim 1 wherein the limb fixation device further comprises a first level and a second level,