Auxiliary support of knee arthroscope positioner

Abstract

The invention relates to the field of medical instrument auxiliary equipment, in particular to a knee arthroscope positioner auxiliary support which comprises a clamping base, a vertical connecting rod is vertically and slidably arranged on the clamping base in a penetrating mode, and a first self-locking angle adjusting mechanism is installed on the top face of the vertical connecting rod. The rotating end of the first self-locking angle adjusting mechanism is connected with a middle connecting rod, a second self-locking angle adjusting mechanism is installed at the end, away from the first self-locking angle adjusting mechanism, of the middle connecting rod, and the rotating end of the first self-locking angle adjusting mechanism is connected with an end connecting rod. A fixing sleeve is installed at the end, away from the first self-locking angle adjusting mechanism, of the end connecting rod, and the knee arthroscope positioner is detachably installed in the fixing sleeve. The position of the knee arthroscope positioner can be accurately adjusted.

Description

Technical Field

[0001] The present invention relates to the field of medical device auxiliary equipment, and in particular to an auxiliary bracket for a knee arthroscopy positioner. Background Art

[0002] The knee joint is an important weight-bearing joint in the lower limbs, and its structure and function are the most complex of the joints in the human body. Anterior and posterior cruciate ligament reconstruction surgery is a common surgical method. The success of minimally invasive knee arthroscopy plays a vital role in whether the patient's lower limbs can fully recover and walk. Knee ligament reconstruction surgery requires placing a locator at the ligament insertion point to determine the position of the bone tunnel. The accuracy of the position of the bone marrow canal determines the success of the ligament reconstruction surgery. In existing ligament reconstruction surgeries, surgical operations rely on handheld locators. The problems with handheld locators are: 1. Instability is the main cause of positioning errors. 2. Holding the locator for a long time increases the burden on the surgeon. The prior art discloses a bracket for assisting the knee arthroscopy positioner in assisting positioning. However, in actual use, the existing auxiliary bracket often needs to adjust various angles in advance before the arthroscopy positioner is installed on the auxiliary bracket. This means that if the initial adjustment is inaccurate, the various connections of the bracket will need to be adjusted again when performing a secondary adjustment. However, the prior art mostly uses bolts and universal hinges to adjust the bracket connections, which leads to inaccuracies after adjustment. Summary of the Invention

[0003] The purpose of the present invention is to provide an auxiliary bracket for a knee arthroscopy positioner to solve the above-mentioned problem and to achieve the purpose of accurately adjusting the position of the knee arthroscopy positioner.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] A knee arthroscopy positioner auxiliary bracket comprises a clamping base, a vertical connecting rod is vertically slidably provided on the clamping base, a first self-locking angle adjustment mechanism is installed on the top surface of the vertical connecting rod, the rotating end of the first self-locking angle adjustment mechanism is connected to an intermediate connecting rod, the end of the intermediate connecting rod away from the first self-locking angle adjustment mechanism is installed with a second self-locking angle adjustment mechanism, the rotating end of the first self-locking angle adjustment mechanism is connected to an end connecting rod, the end of the end connecting rod away from the first self-locking angle adjustment mechanism is installed with a fixing sleeve, and the knee arthroscopy positioner is detachably installed in the fixing sleeve.

[0006] Preferably, the first self-locking angle adjustment mechanism includes a first rotating seat, a first worm is rotatably connected inside the first rotating seat, the axis of the first worm is vertically arranged, the bottom surface of the first rotating seat is rotatably connected to the top surface of the vertical connecting rod, a first damping locking component is provided between the first rotating seat and the top surface of the vertical connecting rod, the first worm is engaged with a first worm wheel, the rotating shaft of the first worm wheel passes through the first rotating seat and is rotatably connected to the first rotating seat, the rotating shaft of the first worm wheel is fixedly connected to the intermediate connecting rod, the rotating shaft of the first worm passes through the first rotating seat and is installed with a first fine-tuning component, and the first fine-tuning component is movably mounted on the first rotating seat.

[0007] Preferably, the first damping locking component includes a first rotation groove seat fixedly connected to the top end of the vertical connecting rod, a first sliding plate is vertically slidably connected in the first rotation groove seat, a first spring is provided between the first sliding plate and the bottom of the first rotation groove seat, and a first locking screw is threadedly connected to the bottom of the groove of the first rotation groove seat, and the first locking screw passes through the bottom of the groove of the first rotation groove seat and rotates with the first sliding plate and an axial movable distance is provided.

[0008] Preferably, the first fine-tuning component includes a first worm connecting shaft connected to the first worm shaft, the first worm connecting shaft passes through the side wall of the first rotating seat and is rotatably connected to the first rotating seat, the portion of the first worm connecting shaft extending out of the first rotating seat is provided with a first spline, the end of the first worm connecting shaft away from the first rotating seat is fixedly connected to a first boss, the first spline does not extend to the first boss, a first worm limiting sleeve is sleeved on the outer side of the first worm connecting shaft, a first worm spline is provided on the inner side of the first worm limiting sleeve, the first worm spline does not extend to the bottom wall of the first worm limiting sleeve, a first return spring is provided between the first worm spline and the first boss, and the first return spring is sleeved on the outer side of the first worm connecting shaft;

[0009] A first movable groove is provided on the first rotating seat, the first worm connecting shaft is movably arranged in the first movable groove, and a first worm reset spring is provided between the first worm connecting shaft and the first movable groove.

[0010] Preferably, the second self-locking angle adjustment mechanism includes a second rotating seat, a second worm is rotatably connected inside the second rotating seat, the axis of the second worm is parallel to the intermediate connecting rod, the second rotating seat is rotatably connected to the intermediate connecting rod, a second damping locking component is provided between the second rotating seat and the intermediate connecting rod, the second worm is engaged with a second worm wheel, the rotating shaft of the second worm wheel passes through the second rotating seat and is rotatably connected to the second rotating seat, the rotating shaft of the second worm wheel is fixedly connected to the end connecting rod, the rotating shaft of the second worm passes through the second rotating seat and is installed with a second fine-tuning component, and the second fine-tuning component is movably mounted on the first rotating seat.

[0011] Preferably, the second damping locking component includes a second rotation groove seat fixedly connected to the end of the intermediate connecting rod, a second sliding plate is axially slidably connected in the second rotation groove seat, a second spring is provided between the second sliding plate and the bottom of the second rotation groove seat, and a second locking screw is threadedly connected to the bottom of the groove of the second rotation groove seat, and the second locking screw passes through the bottom of the groove of the second rotation groove seat and rotates with the second sliding plate and an axial movable distance is provided.

[0012] Preferably, the second fine-tuning component includes a second worm connecting shaft connected to the second worm shaft, the second worm connecting shaft passes through the side wall of the second rotating seat and is rotatably connected to the second rotating seat, the portion of the second worm connecting shaft extending out of the second rotating seat is provided with a second spline, the end of the second worm connecting shaft away from the second rotating seat is fixedly connected to the second boss, the second spline does not extend to the second boss, a second worm limiting sleeve is sleeved on the outer side of the second worm connecting shaft, a second worm spline is provided on the inner side of the second worm limiting sleeve, the second worm spline does not extend to the bottom wall of the second worm limiting sleeve, a second return spring is provided between the second worm spline and the second boss, and the return spring is sleeved on the outer side of the second worm connecting shaft;

[0013] A second movable groove is provided on the second rotating seat, the second worm connecting shaft is movably arranged in the second movable groove, and a second return spring is provided between the gap between the second worm connecting shaft and the second movable groove.

[0014] Preferably, an airbag is installed on the inner wall of the fixing sleeve, the airbag is connected to an inflation device, the airbag is a cylindrical structure, and the knee arthroscopy positioner is detachably installed in the cavity at the center of the airbag.

[0015] Preferably, the clamping base includes a connecting block, the connecting block is provided with an insertion slot, the vertical connecting rod is vertically slidably installed in the insertion slot, the bottom surface of the connecting block is provided with a give way slot, one side of the give way slot is provided with a sliding slot, a locking block is movably provided in the give way slot, one side of the locking block is fixedly connected to one end of the sliding connecting rod, and the other end of the sliding connecting rod is fixedly connected to a pressing block, the sliding connecting rod is movably provided in the sliding slot, the pressing block is located on the outside of the side wall where the sliding slot is provided on the locking block, a threaded hole is provided on the locking block, a locking screw is threadedly connected to the threaded hole, and a movable handle is movably passed through the exposed end of the locking screw.

[0016] The present invention has the following technical effects:

[0017] When the present invention is in use, the entire bracket is clamped on the bed rod by the clamping base, and the angle of the vertical connecting rod and the middle connecting rod can be adjusted by adjusting the first self-locking angle adjustment mechanism. The angle of the middle connecting rod and the end connecting rod can be adjusted by adjusting the second self-locking angle adjustment mechanism. In this way, the position of the fixing sleeve can be adjusted by coordinating the two angles. The knee arthroscopy positioner is installed in the fixing sleeve, so the final fixing sleeve angle and position adjustment can be applied to the knee arthroscopy positioner, providing stability for the knee arthroscopy positioner to detect the lesion position. The first self-locking angle adjustment mechanism and the second self-locking angle adjustment mechanism have a self-locking function, so that the stability of the entire bracket can be achieved after each adjustment is completed, providing a better detection position for the position fixation of the knee arthroscopy positioner, and providing a good foundation for the success of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic structural diagram of the transparent state of the first rotating seat and the second rotating seat of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 4 for Figure 3 A partial enlarged view of the middle A

[0023] Figure 5 for Figure 3 A partial enlarged view of B in the middle;

[0024] Figure 6 Schematic diagram of the structure of the first worm connecting shaft of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the first worm limiting sleeve of the present invention;

[0026] Figure 8 It is a schematic diagram of the matching structure of the first worm connecting shaft and the first worm limiting sleeve of the present invention.

[0027] Among them, 1. Clamping base; 101. Connecting block; 102. Insertion slot; 103. Displacement slot; 104. Slide slot; 2. Vertical connecting rod; 201. First rotating slot seat; 202. First locking screw; 203. First spring; 3. First rotating seat; 301. First worm; 302. First worm wheel; 303. First worm connecting shaft; 3031. First spline; 3032. First boss; 304. First worm limiting sleeve; 3041. First worm spline; 305. First return spring; 306. First worm return spring; 4. Intermediate connecting rod; 401. Second rotating groove seat; 402. Second locking screw; 403. Second spring; 5. Second rotating seat; 501. Second worm; 502. Second worm wheel; 503. Second worm connecting shaft; 504. Second worm limiting sleeve; 505. Second return spring; 6. End connecting rod; 7. Fixed sleeve; 8. Locking block; 801. Locking screw; 802. Movable handle; 803. Threaded hole; 804. Sliding connecting rod; 805. Pressing block; 9. Bed rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1 to 8As shown, this embodiment provides an auxiliary bracket for a knee arthroscopy positioner, including a clamping base 1, a vertical connecting rod 2 is vertically slidably penetrated on the clamping base 1, a first self-locking angle adjustment mechanism is installed on the top surface of the vertical connecting rod 2, the rotating end of the first self-locking angle adjustment mechanism is connected to the intermediate connecting rod 4, the end of the intermediate connecting rod 4 away from the first self-locking angle adjustment mechanism is installed with a second self-locking angle adjustment mechanism, the rotating end of the first self-locking angle adjustment mechanism is connected to the end connecting rod 6, the end of the end connecting rod 6 away from the first self-locking angle adjustment mechanism is installed with a fixing sleeve 7, and the knee arthroscopy locator is detachably installed in the fixing sleeve 7.

[0031] When the present invention is in use, the entire bracket is clamped on the bed rod 9 by the clamping base 1. The angle of the vertical connecting rod 2 and the middle connecting rod 4 can be adjusted by adjusting the first self-locking angle adjustment mechanism. The angle of the middle connecting rod 4 and the end connecting rod 6 can be adjusted by adjusting the second self-locking angle adjustment mechanism. In this way, the position of the fixing sleeve 7 can be adjusted by coordinating the two angles. The knee arthroscopy positioner is installed in the fixing sleeve 7, so the final fixing sleeve 7 angle and position adjustment can be applied to the knee arthroscopy positioner, providing stability for the knee arthroscopy positioner to detect the lesion position. The first self-locking angle adjustment mechanism and the second self-locking angle adjustment mechanism have a self-locking function. In this way, the stability of the entire bracket can be achieved after each adjustment is completed, providing a better detection position for the position fixation of the knee arthroscopy positioner, and providing a good foundation for the success of the operation.

[0032] A further optimized solution is that the first self-locking angle adjustment mechanism includes a first rotating seat 3, and the first rotating seat 3 is internally rotatably connected with a first worm 301, the axis of the first worm 301 is vertically arranged, the bottom surface of the first rotating seat 3 is rotatably connected to the top surface of the vertical connecting rod 2, and a first damping locking component is provided between the first rotating seat 3 and the top surface of the vertical connecting rod 2, the first worm 301 is engaged with a first worm wheel 302, the rotating shaft of the first worm wheel 302 passes through the first rotating seat 3 and is rotatably connected to the first rotating seat 3, the rotating shaft of the first worm wheel 302 is fixedly connected to the intermediate connecting rod 4, the rotating shaft of the first worm 301 passes through the first rotating seat 3 and is installed with a first fine-tuning component, and the first fine-tuning component is movably installed on the first rotating seat 3.

[0033] The first rotating seat 3 and the vertical connecting rod 2 are connected in a rotating manner. By providing a first damping locking component, the first rotating seat 3 and the vertical connecting rod 2 can have a certain damping force during the rotation process, preventing the two from adjusting the angle too much due to improper operation during the relative rotation, thereby bringing a good operational effect to the stability of the adjustment of the entire bracket. Due to the self-locking nature between the worm and the worm wheel, the mutual engagement between the first worm 301 and the first worm wheel 302 ensures that only the first worm 301 can drive the first worm wheel 302 to rotate, thereby achieving the adjustment of the angle between the intermediate connecting rod 4 and the vertical connecting rod 2. If further adjustment is required, the first fine-tuning component has the function of separating the first worm 301 from the first worm wheel 302, which can ensure that the intermediate connecting rod 4 and the vertical connecting rod 2 can be quickly adjusted after the first worm 301 and the first worm wheel 302 are separated. When the adjustment is in place, the first worm 301 and the first worm wheel 302 can be combined again to achieve positioning. After positioning, the first fine-tuning component can also be used to linearly fine-tune the angle between the intermediate connecting rod 4 and the vertical connecting rod 2.

[0034] To further optimize the solution, the first damping locking component includes a first rotating groove seat 201 fixedly connected to the top end of the vertical connecting rod 2, a first sliding plate is vertically slidably connected in the first rotating groove seat 201, a first spring 203 is provided between the first sliding plate and the bottom of the groove of the first rotating groove seat 201, and a first locking screw 202 is threadedly connected to the bottom of the groove of the first rotating groove seat 201. The first locking screw 202 passes through the bottom of the groove of the first rotating groove seat 201 and rotates with the first sliding plate and is provided with an axial movable spacing.

[0035] By adjusting the first locking screw 202 so that the first locking screw 202 does not press the first sliding plate to rotate, there is a certain friction between the rotation of the first sliding plate and the first rotating seat 3 under the elastic force of the first spring 203, and the relative rotation between the intermediate connecting rod 4 and the vertical connecting rod 2 will not occur due to the loosening of the first locking screw 202. By setting the appropriate elastic force of the first spring 203, it can be ensured that the intermediate connecting rod 4 and the vertical connecting rod 2 can achieve relative rotation under human intervention. If a large amount of angle adjustment is required, the first locking screw 202 can be further loosened, and the first sliding plate can be driven by the first locking screw 202 to rotate and disengage from the first rotating seat 3. This can achieve angle adjustment more labor-saving.

[0036] The first worm gear 301 is connected to the first worm gear 301 by a screw thread, and the screw thread is fixed on the first worm gear 303 with a screw thread, so that the screw thread can be fixed on the first worm gear 301 through a screw thread.

[0037] A first movable groove is defined on the first rotating seat 3 , in which the first worm connecting shaft 303 is movably disposed. A first worm return spring 306 is disposed between the first worm connecting shaft 303 and the first movable groove.

[0038] The function of the first return spring 305 is to make the first worm limiting sleeve 304 press the first rotating seat 3. Anti-slip pads can be set on the two opposite surfaces of the first worm limiting sleeve 304 and the first rotating seat 3. The anti-slip pads can be made of rubber, so that when the adjustment is completed, the first worm limiting sleeve 304 can be prevented from relative rotation, resulting in deviation in the adjustment angle of the intermediate connecting rod 4. In addition, when adjustment is needed, the first worm limiting sleeve 304 can be pulled outward, and the first worm connecting shaft 303 can be moved in the first movable groove to disengage the first worm 301 and the first worm wheel 302, so that the angle can be quickly adjusted. When fine-tuning is needed, the first worm limiting sleeve 304 can be rotated. Since the first worm limiting sleeve 304 and the first worm connecting shaft 303 are connected by a spline, the first worm 301 can be driven to rotate to achieve micro-angle adjustment.

[0039] A further optimized solution is that the second self-locking angle adjustment mechanism includes a second rotating seat 5, and the second rotating seat 5 is internally rotatably connected with a second worm 501, the axis of the second worm 501 is parallel to the intermediate connecting rod 4, the second rotating seat 5 is rotatably connected to the intermediate connecting rod 4, and a second damping locking component is provided between the second rotating seat 5 and the intermediate connecting rod 4, the second worm 501 is engaged with a second worm wheel 502, the rotating shaft of the second worm wheel 502 passes through the second rotating seat 5 and is rotatably connected to the second rotating seat 5, the rotating shaft of the second worm wheel 502 is fixedly connected to the end connecting rod 6, the rotating shaft of the second worm 501 passes through the second rotating seat 5 and is installed with a second fine-tuning component, and the second fine-tuning component is movably mounted on the first rotating seat 3.

[0040] A further optimized solution is provided, in which the second damping locking component includes a second rotation groove seat 401 fixedly connected to the end of the intermediate connecting rod 4, a second sliding plate is axially slidably connected to the second rotation groove seat 401, a second spring 403 is provided between the second sliding plate and the bottom of the groove of the second rotation groove seat 401, and a second locking screw 402 is threadedly connected to the bottom of the groove of the second rotation groove seat 401, and the second locking screw 402 passes through the bottom of the groove of the second rotation groove seat 401 and rotates with the second sliding plate and is provided with an axial movable spacing.

[0041] A further optimized solution is that the second fine-tuning component includes a second worm connecting shaft 503 axially connected to the second worm 501, the second worm connecting shaft 503 passes through the side wall of the second rotating seat 5 and is rotatably connected to the second rotating seat 5, the portion of the second worm connecting shaft 503 extending out of the second rotating seat 5 is provided with a second spline, the end of the second worm connecting shaft 503 away from the second rotating seat 5 is fixedly connected to the second boss, the second spline does not extend to the second boss, the outer side of the second worm connecting shaft 503 is sleeved with a second worm limiting sleeve 504, the inner side of the second worm limiting sleeve 504 is provided with a second worm spline, the second worm spline does not extend to the bottom wall of the second worm limiting sleeve 504, a second return spring is provided between the second worm spline and the second boss, and the return spring is sleeved on the outer side of the second worm connecting shaft 503;

[0042] A second movable groove is defined on the second rotating seat 5 , in which the second worm connecting shaft 503 is movably disposed. A second return spring 505 is disposed between the second worm connecting shaft 503 and the second movable groove.

[0043] According to a further optimized solution, an air bag is installed on the inner wall of the fixing sleeve 7, the air bag is connected to an inflation device, the air bag is a cylindrical structure, and the knee arthroscopy locator can be detachably installed in the cavity at the center of the air bag.

[0044] The angle adjustment related to the second rotating seat 5 is the same as that of the first rotating seat 3, and the splines on the second worm connecting shaft 503 and the second worm limiting sleeve 504 are the same as the spline structure on the first worm limiting sleeve 304 and the first worm connecting shaft 303 (therefore not marked in the figure).

[0045] A further optimization scheme is provided, the clamping base 1 includes a connecting block 101, an insertion groove 102 is provided on the connecting block 101, the vertical connecting rod 2 is vertically slidably installed in the insertion groove 102, a give way groove 103 is provided on the bottom surface of the connecting block 101, a slide groove 104 is provided on one side of the give way groove 103, a locking block 8 is movably provided in the give way groove 103, one side of the locking block 8 is fixedly connected to one end of the sliding connecting rod 804, and the other end of the sliding connecting rod 804 is fixedly connected to a clamping block 805, the sliding connecting rod 804 is movably provided in the slide groove 104, the clamping block 805 is located on the outside of the side wall of the locking block 8 with the slide groove 104, a threaded hole 803 is provided on the locking block 8, a locking screw 801 is threadedly connected in the threaded hole 803, and a movable handle 802 is movably passed through the exposed end of the locking screw 801.

[0046] By rotating the locking screw 801 , the locking screw 801 cooperates with the connecting block 101 and the locking block 8 to lock the bracket on the bed rod 9 .

[0047] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A knee arthroscopy positioner auxiliary bracket, characterized in that: The invention comprises a clamping base (1), a vertical connecting rod (2) is vertically slidably penetrated on the clamping base (1), a first self-locking angle adjustment mechanism is installed on the top surface of the vertical connecting rod (2), a rotating end of the first self-locking angle adjustment mechanism is connected to an intermediate connecting rod (4), an end of the intermediate connecting rod (4) away from the first self-locking angle adjustment mechanism is installed with a second self-locking angle adjustment mechanism, a rotating end of the first self-locking angle adjustment mechanism is connected to an end connecting rod (6), an end of the end connecting rod (6) away from the first self-locking angle adjustment mechanism is installed with a fixing sleeve (7), and the knee arthroscopy positioner is detachably installed in the fixing sleeve (7).

2. The auxiliary bracket for knee arthroscopy positioner according to claim 1, characterized in that: The first self-locking angle adjustment mechanism comprises a first rotating seat (3), a first worm (301) is rotatably connected inside the first rotating seat (3), the axis of the first worm (301) is vertically arranged, the bottom surface of the first rotating seat (3) is rotatably connected to the top surface of the vertical connecting rod (2), a first damping locking component is provided between the first rotating seat (3) and the top surface of the vertical connecting rod (2), the first worm (301) is engaged with a first worm wheel (302), the rotating shaft of the first worm wheel (302) passes through the first rotating seat (3) and is rotatably connected to the first rotating seat (3), the rotating shaft of the first worm wheel (302) is fixedly connected to the intermediate connecting rod (4), the rotating shaft of the first worm (301) passes through the first rotating seat (3) and is installed with a first fine-tuning component, and the first fine-tuning component is movably installed on the first rotating seat (3).

3. The auxiliary bracket for knee arthroscopy positioner according to claim 2, characterized in that: The first damping locking component comprises a first rotating groove seat (201) fixedly connected to the top end of the vertical connecting rod (2); a first sliding plate is vertically slidably connected in the first rotating groove seat (201); a first spring (203) is provided between the first sliding plate and the groove bottom of the first rotating groove seat (201); a first locking screw (202) is threadedly connected to the groove bottom of the first rotating groove seat (201); the first locking screw (202) passes through the groove bottom of the first rotating groove seat (201) and rotates with the first sliding plate and has an axial movable spacing.

4. The auxiliary bracket for knee arthroscopy positioner according to claim 2, characterized in that: The first fine-tuning component comprises a first worm connecting shaft (303) axially connected to the first worm (301), the first worm connecting shaft (303) passes through the side wall of the first rotating seat (3) and is rotatably connected to the first rotating seat (3), the portion of the first worm connecting shaft (303) extending out of the first rotating seat (3) is provided with a first spline (3031), the end of the first worm connecting shaft (303) away from the first rotating seat (3) is fixedly connected with a first boss (3032), and the first spline (3031) does not extend to the first rotating seat (3). The first boss (3032) is provided with a first worm limiting sleeve (304) on the outside of the first worm connecting shaft (303), a first worm spline (3041) is provided on the inside of the first worm limiting sleeve (304), the first worm spline (3041) does not extend to the bottom wall of the first worm limiting sleeve (304), a first return spring (305) is provided between the first worm spline (3041) and the first boss (3032), and the first return spring (305) is sleeved on the outside of the first worm connecting shaft (303); A first movable groove is provided on the first rotating seat (3), the first worm connecting shaft (303) is movably arranged in the first movable groove, and a first worm reset spring (306) is provided between the first worm connecting shaft (303) and the gap between the first movable groove.

5. The auxiliary bracket for knee arthroscopy positioner according to claim 1, characterized in that: The second self-locking angle adjustment mechanism includes a second rotating seat (5), a second worm (501) is rotatably connected inside the second rotating seat (5), the axis of the second worm (501) is parallel to the intermediate connecting rod (4), the second rotating seat (5) is rotatably connected to the intermediate connecting rod (4), a second damping locking component is provided between the second rotating seat (5) and the intermediate connecting rod (4), the second worm (501) is engaged with a second worm wheel (502), the rotating shaft of the second worm wheel (502) passes through the second rotating seat (5) and is rotatably connected to the second rotating seat (5), the rotating shaft of the second worm wheel (502) is fixedly connected to the end connecting rod (6), the rotating shaft of the second worm (501) passes through the second rotating seat (5) and is installed with a second fine-tuning component, and the second fine-tuning component is movably installed on the first rotating seat (3).

6. The auxiliary bracket for knee arthroscopy positioner according to claim 5, characterized in that: The second damping locking component comprises a second rotating groove seat (401) fixedly connected to the end of the intermediate connecting rod (4); a second sliding plate is axially slidably connected in the second rotating groove seat (401); a second spring (403) is provided between the second sliding plate and the groove bottom of the second rotating groove seat (401); a second locking screw (402) is threadedly connected to the groove bottom of the second rotating groove seat (401); the second locking screw (402) passes through the groove bottom of the second rotating groove seat (401) and rotates with the second sliding plate and has an axial movable spacing.

7. The auxiliary bracket for knee arthroscopy positioner according to claim 5, characterized in that: The second fine-tuning component includes a second worm connecting shaft (503) axially connected to the second worm (501), the second worm connecting shaft (503) passes through the side wall of the second rotating seat (5) and is rotatably connected to the second rotating seat (5), the portion of the second worm connecting shaft (503) extending out of the second rotating seat (5) is provided with a second spline, the end of the second worm connecting shaft (503) away from the second rotating seat (5) is fixedly connected with a second boss, the second spline does not extend to the second boss, the outer side of the second worm connecting shaft (503) is provided with a second worm limiting sleeve (504), the inner side of the second worm limiting sleeve (504) is provided with a second worm spline, the second worm spline does not extend to the bottom wall of the second worm limiting sleeve (504), a second return spring is provided between the second worm spline and the second boss, and the return spring is sleeved on the outer side of the second worm connecting shaft (503); A second movable groove is provided on the second rotating seat (5), the second worm connecting shaft (503) is movably arranged in the second movable groove, and a second return spring (505) is provided between the second worm connecting shaft (503) and the gap between the second movable groove.

8. The auxiliary bracket for knee arthroscopy positioner according to any one of claims 1 to 7, characterized in that: An air bag is installed on the inner wall of the fixing sleeve (7), the air bag is connected to an inflation device, the air bag is a cylindrical structure, and the knee arthroscopy positioner is detachably installed in the cavity at the center of the air bag.

9. The auxiliary bracket for knee arthroscopy positioner according to any one of claims 1 to 7, characterized in that: The clamping base (1) includes a connecting block (101), an insertion groove (102) is provided on the connecting block (101), the vertical connecting rod (2) is vertically slidably installed in the insertion groove (102), a clearance groove (103) is provided on the bottom surface of the connecting block (101), a sliding groove (104) is provided on one side of the clearance groove (103), a locking block (8) is movably provided in the clearance groove (103), and one side of the locking block (8) is fixedly connected to one end of the sliding connecting rod (804), The other end of the sliding connecting rod (804) is fixedly connected to a clamping block (805), and the sliding connecting rod (804) is movably arranged in the sliding groove (104). The clamping block (805) is located on the outer side of the side wall of the locking block (8) on which the sliding groove (104) is opened. A threaded hole (803) is opened on the locking block (8), and a locking screw (801) is connected to the inner thread of the threaded hole (803). A movable handle (802) is movably inserted into the exposed end of the locking screw (801).

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