Accurate fixing device for joint surgery in sports medicine

Abstract

The utility model relates to an accurate fixing device for a joint operation in sports medicine. The problem that in the prior art, a joint operation fixing device is poor in adjusting flexibility is solved. The device comprises a supporting bottom plate, insertion supporting pads are arranged on the supporting bottom plate, a drawing type fluctuation positioning assembly is arranged between the insertion supporting pads, one end of the supporting bottom plate is connected with a lifting rod supporting structure through a sliding adjusting mechanism, and a joint positioning assembly is arranged at the upper end of the lifting rod supporting structure. The cervical vertebra fixing device has the advantages that automatic fitting can be achieved according to the neck curve of a cervical vertebra patient, the supporting force can be adjusted through the supporting mechanism, the adjusting flexibility is good, the fixing effect is good, and accurate fixing can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical tools, and in particular to a precise fixing device for sports medicine joint surgery. Background Art

[0002] Because the patient is anesthetized during the operation, he cannot control the knee flexion posture of the thigh on the affected side through his own consciousness, and because the position of the limbs needs to be changed frequently during joint and arthroscopic surgery. Therefore, in joint and arthroscopic surgery, a fixing device is usually used as an auxiliary medical device to fix the patient's leg on the fixing device, so that the medical staff can adjust the limb position of the patient's leg for surgery. The existing fixing device includes a base plate, a track arranged on the base plate, a slider that can move along the track, a ratchet pawl installed on the slider, and a rack installed on the base plate and matched with the ratchet. The foot support is arranged on the slider, and when it is necessary to adjust the patient's thigh to increase the bending angle, it is only necessary to rotate the ratchet, and the ratchet matched with the rack drives the slider to move during the rotation process. However, when it is necessary to adjust the patient's thigh to reduce the bending angle of the above-mentioned prior art, the slider can only be adjusted to move in the direction of straightening the thigh after the ratchet is released first, so that the ratchet no longer restricts the rotation of the ratchet in this direction, and the adjustment is relatively inconvenient; in addition, the existing fixing device is difficult to flexibly adjust the bending degree of the calf, and the flexibility of use is poor.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a sports medicine joint surgery precision fixation device [CN202210482437.8], which includes a base plate, a track, a sliding adjustment assembly and a foot bracket. The sliding adjustment assembly includes a rack, a slider, a gear and an adjustment handle; the rack includes a tooth groove arranged at intervals and a fixed tooth between adjacent tooth grooves; the gear includes a movable tooth, and the end of the movable tooth away from the center of the gear is a tooth end face, and the tooth end face includes a locking section; when the movable tooth is against the fixed tooth on the same side as the movement trend direction of the sliding adjustment assembly, the tooth end face of the adjacent movable tooth is against the adjacent fixed tooth; when the locking section is in contact with the fixed tooth, the direction of the force applied by the fixed tooth to the movable tooth passes through the center of the gear or the side of the gear center away from the rack. In this state, the gear can no longer rotate, and the position of the sliding adjustment assembly is also fixed, which saves the process of unlocking the ratchet to adjust, and is more convenient to use.

[0004] The above solution solves the problem of inconvenient adjustment operation of the joint surgical fixation device in the prior art to a certain extent, but the solution still has many shortcomings, such as: it is difficult to flexibly adjust the bending degree of the calf and the flexibility of use is poor. Summary of the invention

[0005] The purpose of the utility model is to provide a precise fixation device for sports medicine joint surgery in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a precise fixation device for sports medicine joint surgery, comprising a supporting base plate, on which plug-in support pads are respectively provided, and between which a pull-out type undulating positioning assembly is provided, one end of the supporting base plate is connected to a lifting rod support structure through a sliding adjustment mechanism, and a joint positioning assembly is provided at the upper end of the lifting rod support structure.

[0007] In the above-mentioned precise fixation device for sports medicine joint surgery, the pull-out type undulating positioning assembly includes a sliding connection cavity arranged in the plug-in support pad, a soft support pad is slidably arranged in the sliding connection cavity, and an undulating connection part is arranged between the soft support pads located in the two sliding connection cavities, and the undulating connection part is a flexible structure.

[0008] In the above-mentioned precise fixation device for sports medicine joint surgery, both ends of the undulating connection part are provided with rigid rotating connection heads, the rigid rotating connection heads are inserted with rotating connecting rods, and the rotating connecting rods are arranged inside the undulating connection part to form support.

[0009] In the above-mentioned precise fixation device for sports medicine joint surgery, electric lifting rods are provided on the outer walls of both sides of the supporting base plate, the base of the electric lifting rod is plugged into the supporting base plate, and the upper end of the electric lifting rod is connected to the end of the above-mentioned rotating connecting rod.

[0010] In the above-mentioned precise fixation device for sports medicine joint surgery, the sliding adjustment mechanism includes a strip slide groove arranged on the supporting base plate, a sliding base located on the upper end surface of the supporting base plate is slidingly arranged in the strip slide groove, and a guide slide groove is arranged on the upper end surface of the supporting base plate, and a guide slider inserted in the guide slide groove is arranged at the bottom of the sliding base.

[0011] In the above-mentioned precise fixation device for sports medicine joint surgery, the lifting rod support structure includes a rotating adjustment seat arranged on a sliding base, a linkage positioning plate is connected to the rotating adjustment seat via an adjusting shaft, and the above-mentioned joint positioning assembly is arranged at the end of the linkage positioning plate.

[0012] In the above-mentioned precise fixation device for sports medicine joint surgery, a support adjustment groove is provided on the upper end surface of the sliding base, a cylinder seat is slidably arranged in the support adjustment groove, and a support adjustment cylinder is rotatably arranged on the cylinder seat, and the output end of the support adjustment cylinder is connected to a linkage rod arranged on the side wall of the linkage positioning plate.

[0013] In the above-mentioned precise fixation device for sports medicine joint surgery, an adjusting push cylinder is provided on the supporting base plate, a top pressure clamping part is provided at the output end of the adjusting push cylinder, and the top pressure clamping part is connected to the adjusting shaft.

[0014] In the above-mentioned precise fixation device for sports medicine joint surgery, the joint positioning assembly includes a supporting positioning seat, the upper end surface of the supporting positioning seat is provided with a positioning groove, a flip connecting rod is provided on one side of the positioning groove and a plug-in connecting rod is provided on the other side, and an arc-shaped positioning portion is provided between the flip connecting rod and the plug-in connecting rod and is arranged corresponding to the positioning groove.

[0015] In the above-mentioned precise fixation device for sports medicine joint surgery, the positioning groove pair and the inner wall of the arc-shaped positioning portion are provided with flexible rubber pads.

[0016] Compared with the existing technology, the advantages of the utility model are: easy operation, able to adjust the bending angle of the calf arbitrarily, and adopting an automatic adjustment method, saving time and effort, secondly, it can be effectively fixed after the adjustment is completed to ensure the accuracy and stability of joint surgery operations, with good flexibility and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the overall structure of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a side view of the supporting bottom plate in the utility model;

[0020] Figure 4 It is a cross-sectional view of the sliding base in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the joint positioning assembly in the utility model;

[0022] In the figure: supporting base plate 1, plug-in supporting pad 11, pull-out type undulating positioning assembly 2, sliding connection cavity 21, soft supporting pad 22, undulating connection part 23, rigid rotating connector 24, rotating connecting rod 25, electric lifting rod 26, sliding adjustment mechanism 3, strip slide 31, sliding base 32, guide slide 33, guide slider 34, lifting rod supporting structure 4, rotating adjustment seat 41, adjusting shaft 42, linkage positioning plate 43, supporting adjustment slide 44, cylinder seat 45, supporting adjustment cylinder 46, linkage rod 47, adjusting pushing cylinder 48, top pressing clamping part 49, joint positioning assembly 5, supporting positioning seat 51, positioning groove 52, flip connecting rod 53, plug-in connecting rod 54, arc positioning part 55, flexible rubber pad 56. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5As shown, a precise fixation device for sports medicine joint surgery includes a supporting base plate 1, on which plug-in support pads 11 are respectively provided, and between which pull-out type undulating positioning components 2 are provided. One end of the supporting base plate 1 is connected to a lifting rod support structure 4 through a sliding adjustment mechanism 3, and a joint positioning component 5 is provided at the upper end of the lifting rod support structure 4.

[0025] Among them, the pull-out type undulating positioning assembly 2 includes a sliding connection cavity 21 arranged in the plug-in support pad 11, a soft support pad 22 is slidably arranged in the sliding connection cavity 21, and an undulating connection part 23 is arranged between the soft support pads 22 located in the two sliding connection cavities 21, and the undulating connection part 23 is a flexible structure.

[0026] The open upper end of the sliding connection cavity 21 is an inclined structure, and a wear-resistant and anti-skid pad is added. Secondly, the undulating connection part 23 of the flexible structure can be bent at any angle.

[0027] It can be seen that the two ends of the undulating connection part 23 have rigid rotating connectors 24 , and the rigid rotating connectors 24 are penetrated by rotating connecting rods 25 , and the rotating connecting rods 25 are penetrated inside the undulating connection part 23 to form support.

[0028] Obviously, electric lifting rods 26 are provided on the outer walls of both sides of the supporting base plate 1 , the base of the electric lifting rod 26 is plugged into the supporting base plate 1 , and the upper end of the electric lifting rod 26 is connected to the end of the above-mentioned rotating connecting rod 25 .

[0029] The electric lifting rod 26 is wirelessly connected to the controller, and the controller is used to control the lifting and lowering of the electric lifting rod 26. When the electric lifting rod 26 rises, the soft support pad 22 slides out of the sliding connection cavity 21 and is propped up in an inclined state, which is convenient for bending and lifting the patient's leg joints when they are flat.

[0030] Furthermore, the sliding adjustment mechanism 3 includes a strip slide groove 31 arranged on the supporting base plate 1, a sliding base 32 located on the upper end surface of the supporting base plate 1 is slidably provided in the strip slide groove 31, and a guide slide groove 33 is provided on the upper end surface of the supporting base plate 1, and a guide slider 34 is provided at the bottom of the sliding base 32 and is inserted into the guide slide groove 33.

[0031] The sliding adjustment mechanism 5 can be used to adjust according to the length of the patient's leg joint to control the position of the joint positioning component 5; and the setting of the guide slot 33 and the guide slider 34 ensures the stability of the sliding adjustment.

[0032] Specifically, the lifting rod support structure 4 includes a rotating adjustment seat 41 arranged on the sliding base 32 , a linkage positioning plate 43 is connected to the rotating adjustment seat 41 via an adjustment shaft 42 , and the above-mentioned joint positioning assembly 5 is arranged at the end of the linkage positioning plate 43 .

[0033] Furthermore, a support adjustment groove 44 is provided on the upper end surface of the sliding base 32, a cylinder seat 45 is slidably provided in the support adjustment groove 44, and a support adjustment cylinder 46 is rotatably provided on the cylinder seat 45, and the output end of the support adjustment cylinder 46 is connected to a linkage rod 47 arranged on the side wall of the linkage positioning plate 43.

[0034] The lifting rod support structure 4 and the support adjustment cylinder 46 are used to provide active support for the patient's calf. When the electric lifting rod 26 lifts the joint, the lifting rod support structure 4 automatically follows and moves synchronously to ensure that the patient's calf moves backward synchronously, thereby improving comfort.

[0035] More specifically, an adjusting push cylinder 48 is provided on the supporting base plate 1 , a top pressing clamping portion 49 is provided at the output end of the adjusting push cylinder 48 , and the top pressing clamping portion 49 is connected to the adjusting shaft 42 .

[0036] By adjusting the push cylinder 48, the support angle of the lifting rod support structure 4 can be fixed to ensure the stability of the patient's legs during surgery.

[0037] In detail, the joint positioning assembly 5 includes a supporting positioning seat 51, a positioning groove 52 is provided on the upper end surface of the supporting positioning seat 51, a flip connecting rod 53 is provided on one side of the positioning groove 52 and a plug-in connecting rod 54 is provided on the other side, and an arc-shaped positioning portion 55 corresponding to the positioning groove 52 is provided between the flip connecting rod 53 and the plug-in connecting rod 54.

[0038] Preferably, the positioning grooves 52 and the inner walls of the arc-shaped positioning portion 55 are provided with flexible rubber pads 56 .

[0039] The patient's calf is fixed by the joint positioning component 5 to improve the positioning effect.

[0040] To sum up, the principle of this embodiment is that when in use, the joint is lifted by the electric lifting rod 26, and the soft support pad 22 slides out of the sliding connection cavity 21 and is propped up in an inclined state. At this time, the lifting rod support structure 4 and the support adjustment cylinder 46 provide active support for the patient's calf and move the calf as the joint is lifted, ensuring that the patient's calf moves backward synchronously. Finally, after adjusting to the required angle, the calf is fixed using the joint positioning assembly 5, thereby achieving precise fixed position adjustment.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0042] Although the following terms are used more frequently in this article, such as support base plate 1, plug-in support pad 11, pull-out type undulating positioning assembly 2, sliding connection cavity 21, soft support pad 22, undulating connection part 23, rigid rotating connector 24, rotating connecting rod 25, electric lifting rod 26, sliding adjustment mechanism 3, strip slide 31, sliding base 32, guide slide 33, guide slider 34, lifting rod support structure 4, rotating adjustment seat 41, adjusting shaft 42, linkage positioning plate 43, support adjustment slide 44, cylinder seat 45, support adjustment cylinder 46, linkage rod 47, adjustment push cylinder 48, top pressing clamping part 49, joint positioning assembly 5, support positioning seat 51, positioning groove 52, flip connecting rod 53, plug-in connecting rod 54, arc positioning part 55, flexible rubber pad 56, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A sports medicine joint surgery precision fixation device, comprising a support base plate (1), wherein the support base plate (1) is respectively provided with plug-in support pads (11), characterized in that: A pull-out type undulating positioning assembly (2) is provided between the plug-in support pads (11); one end of the support base plate (1) is connected to a lifting rod support structure (4) via a sliding adjustment mechanism (3); and a joint positioning assembly (5) is provided at the upper end of the lifting rod support structure (4).

2. A sports medicine joint surgery precision fixation device according to claim 1, characterized in that: The pull-out type undulating positioning assembly (2) comprises a sliding connection cavity (21) arranged in the plug-in support pad (11), a soft support pad (22) is slidably arranged in the sliding connection cavity (21), and an undulating connection part (23) is arranged between the soft support pads (22) in the two sliding connection cavities (21), and the undulating connection part (23) is a flexible structure.

3. A sports medicine joint surgery precision fixation device according to claim 2, characterized in that: The two ends of the undulating connection part (23) are provided with rigid rotating connection heads (24), a rotating connecting rod (25) is inserted into the rigid rotating connection head (24), and the rotating connecting rod (25) is inserted into the interior of the undulating connection part (23) to form a support.

4. The sports medicine joint surgery precision fixation device according to claim 3, characterized in that: The outer walls on both sides of the support base plate (1) are provided with electric lifting rods (26), the base of the electric lifting rod (26) is plugged into the support base plate (1), and the upper end of the electric lifting rod (26) is connected to the end of the above-mentioned rotating connecting rod (25).

5. The sports medicine joint surgery precision fixation device according to claim 1, characterized in that: The sliding adjustment mechanism (3) comprises a strip-shaped slide groove (31) arranged on the supporting base plate (1), a sliding base (32) located on the upper end surface of the supporting base plate (1) is slidably arranged in the strip-shaped slide groove (31), and a guide slide groove (33) is arranged on the upper end surface of the supporting base plate (1), and a guide sliding block (34) inserted into the guide slide groove (33) is arranged at the bottom of the sliding base (32).

6. The sports medicine joint surgery precision fixation device according to claim 5, characterized in that: The lifting rod support structure (4) includes a rotating adjustment seat (41) arranged on a sliding base (32), and the rotating adjustment seat (41) is connected to a linkage positioning plate (43) via an adjustment shaft (42), and the above-mentioned joint positioning assembly (5) is arranged at the end of the linkage positioning plate (43).

7. The sports medicine joint surgery precision fixation device according to claim 6, characterized in that: The upper end surface of the sliding base (32) is provided with a support adjustment slot (44), a cylinder seat (45) is slidably arranged in the support adjustment slot (44), and a support adjustment cylinder (46) is rotatably arranged on the cylinder seat (45), and the output end of the support adjustment cylinder (46) is connected to a linkage rod (47) arranged on the side wall of the linkage positioning plate (43).

8. The sports medicine joint surgery precision fixation device according to claim 5, characterized in that: An adjusting push cylinder (48) is provided on the supporting bottom plate (1), and a top pressing clamping portion (49) is provided at the output end of the adjusting push cylinder (48), and the top pressing clamping portion (49) is connected to the adjusting rotating shaft (42).

9. The sports medicine joint surgery precision fixation device according to claim 1, characterized in that: The joint positioning assembly (5) comprises a support positioning seat (51), the upper end surface of the support positioning seat (51) is provided with a positioning groove (52), one side of the positioning groove (52) is provided with a flip connecting rod (53) and the other side is provided with a plug-in connecting rod (54), and an arc-shaped positioning portion (55) corresponding to the positioning groove (52) is provided between the flip connecting rod (53) and the plug-in connecting rod (54).

10. The sports medicine joint surgery precision fixation device according to claim 9, characterized in that: The positioning grooves (52) and the inner wall of the arc-shaped positioning portion (55) are provided with flexible rubber pads (56).

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