Ankle arthroscope traction device convenient to install

Abstract

The invention relates to the technical field of medical instruments, and particularly discloses an ankle arthroscope traction device convenient to install, comprising a traction frame used for traction and stretching of an ankle joint; the device further comprises a positioning supporting base. The positioning support base limits the position of the traction frame; the detection mechanism is installed in the positioning supporting base and detects the thickness degree of the middle of the shank of the patient before traction of the ankle joint of the patient; according to the detection mechanism, when the rotary detection roller rotates, the cam rotates synchronously, the eccentric contour of the cam pushes the displacement sensing plate to slide in the sliding rail in the positioning supporting base, and the first reset spring provides reset force. A protruding structure at the bottom of the displacement sensing plate accurately acts on the pressure sensing air bag, the pressure sensing air bag is connected with the elastic reset element through the connecting pipe air guide pipe, displacement is converted into deformation of the elastic reset element, then the displacement transmission rod is driven to move, and transmission of physical signals is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to an ankle arthroscopic traction device which is easy to install. Background Art

[0002] Arthroscopy is an endoscope used to diagnose and treat joint diseases. Initially, arthroscopy was only used in the knee joint, but now it has gradually developed to other large joints of the limbs, as well as the wrist joints, interphalangeal joints and ankle joints. Due to the narrow gap between the ankle joints, the ankle joint needs to be pulled during surgery to increase the joint gap and facilitate the operation. In ankle arthroscopy, a good surgical field of view is one of the key factors to ensure the success of the operation, and an effective traction device can provide sufficient space for surgical operations.

[0003] Existing ankle traction devices have many problems. It is not convenient to adjust the traction force and speed according to the different calf thickness of patients, resulting in poor traction effect and even unnecessary harm to patients. At the same time, some devices are complicated to install, affecting the efficiency of surgical preparation. Therefore, we propose an easy-to-install ankle arthroscopic traction device. Summary of the Invention

[0004] The object of the present invention is to provide an ankle arthroscopic traction device that is easy to install, so as to solve the problem in the above-mentioned background technology that it is inconvenient to adjust the traction force and speed according to the different calf thicknesses of patients.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an ankle arthroscopic traction device that is easy to install, comprising: a traction frame, the traction frame being used to traction and stretch the ankle joint;

[0006] It also includes: a positioning support base; the positioning support base limits the position of the traction frame;

[0007] The detection mechanism is installed inside the positioning support base. Before traction is applied to the patient's ankle joint, the detection mechanism detects the thickness of the patient's mid-calf;

[0008] The adjustment mechanism is installed at the bottom of the traction frame. The adjustment mechanism controls the running speed in the same time according to the thickness of the patient's middle calf detected by the detection mechanism. When the thickness of the middle calf is higher, the movement speed of the traction frame is increased in the same time.

[0009] Among them, the detection mechanism includes a rotating detection roller rotatably connected to the inside of the positioning support base, one end of the rotating detection roller is slidably connected to an axial limit assembly, one end of the surface of the rotating detection roller is fixedly connected to a cam, one end of the cam contacts a displacement sensing plate, the displacement sensing plate is slidably connected to the inside of the positioning support base, and its bottom is fixedly connected to a first return spring, the first return spring is fixedly connected to the inside of the positioning support base, the bottom of the displacement sensing plate contacts a pressure sensing airbag, one end of the pressure sensing airbag is fixedly connected to a connecting tube, one end of the connecting tube is fixedly connected to an air guide tube, the inside of the air guide tube is fixedly connected to an elastic return element, and one end of the elastic return element is fixedly connected to a displacement conduction rod.

[0010] Among them, the axial limiting assembly includes an inner limiting ring slidably connected to one side of the rotating detection roller, the surface of the rotating detection roller is provided with a first sliding groove adapted to the inner limiting ring, one side of the inner limiting ring is fixedly connected to a second return spring, one end of the second return spring is fixedly connected to a limiting ball, the surface of the limiting ball contacts an outer limiting ring, one end of the outer limiting ring is fixedly connected to a limiting guide rod, and the surface of the positioning support base is provided with a first empty groove adapted to the limiting guide rod.

[0011] Among them, the surface of the rotating detection roller is wrapped with a calf fixing strap, one end of the calf fixing strap is fixedly connected to a locking tongue, one end of the locking tongue is clamped with a buckle base, the buckle base is fixedly connected to the inside of the positioning support base, and the surface of the positioning support base is provided with a second empty groove adapted to the buckle base. The side of the rotating detection roller close to the axial limit assembly is fixedly connected to a mainspring, one end of the mainspring is fixedly connected to a rotating support seat, the rotating support seat is fixedly connected to the inside of the positioning support base, and the inside of the rotating support seat is provided with a third empty groove adapted to the rotating detection roller.

[0012] Among them, the adjustment mechanism includes a quick clamping assembly clamped at the bottom of the traction frame, one end of the quick clamping assembly is fixedly connected to a linear moving slider, the interior of the linear moving slider is slidably connected to a screw rod, one end of the screw rod is fixedly connected to a driving shaft, the surface of the driving shaft is slidably connected to a transmission mode switching assembly, the side of the driving shaft surface close to the transmission mode switching assembly is rotatably connected to a driven transmission gear, the teeth of the driven transmission gear are meshed with an active transmission gear, one end of the active transmission gear is fixedly connected to a fixed motor, the bottom of the fixed motor is fixedly connected to an electronic control integrated box, the interior of the electronic control integrated box is fixedly connected to a sliding rheostat, the surface of the sliding rheostat is slidably connected to a sliding contact, the sliding contact is fixedly connected to one end of the displacement conduction rod, and an intelligent control device is arranged inside the electronic control integrated box.

[0013] Among them, the transmission mode switching component includes a sliding adjustment ring slidingly connected to the surface of the driving shaft, the surface of the sliding adjustment ring is fixedly connected with an elastic limiting rod, one end of the elastic limiting rod is fixedly connected with a positioning block, the surface of the sliding adjustment ring is rotatably connected with a linkage synchronization plate, one end of the linkage synchronization plate is fixedly connected with an electric push rod, and the electric push rod is fixedly connected to the inside of the electronic control integrated box.

[0014] Among them, one end of the electronic control integrated box is fixedly connected to a guide limit plate, the screw is rotatably connected to the inside of the guide limit plate, and a fourth empty slot adapted to the linear moving slider is opened on the surface of the guide limit plate.

[0015] Among them, the driving shaft is rotatably connected to the side of the driven transmission gear away from the driven gear, the driving gear is meshed with the driving gear between the teeth, one end of the driving gear is fixedly connected to the worm wheel, the worm is meshed between the teeth of the worm wheel, and one end of the worm is fixedly connected to the manual adjustment handle.

[0016] Among them, the bottom of the positioning support base is rotatably connected to a pawl, one end of the pawl is fixedly connected to a reset compression spring, the reset compression spring is fixedly connected to the inside of the positioning support base, a ratchet is engaged between the teeth of the pawl, the bottom of the ratchet is fixedly connected to a height adjustment screw A, the surface of the height adjustment screw A is rotatably connected to an adjusting nut A, the bottom of the adjusting nut A is rotatably connected to a support column A, the bottom of the support column A is fixedly connected to a height adjustment screw B, the surface of the height adjustment screw B is rotatably connected to an adjusting nut B, and the bottom of the adjusting nut B is rotatably connected to the support column B.

[0017] Among them, one end of the supporting column A is fixedly connected to a rigid connecting arm, one end of the rigid connecting arm is fixedly connected to a vertical lifting shaft, and the surface of the vertical lifting shaft is fixedly connected to a multi-functional adapter.

[0018] The present invention has at least the following beneficial effects:

[0019] The present invention utilizes a detection mechanism. When the rotating detection roller rotates, the cam rotates synchronously. Its eccentric profile pushes the displacement sensing plate to slide within the slide rail within the positioning support base, while a first return spring provides the return force. A raised structure on the bottom of the displacement sensing plate precisely acts on a pressure-sensing airbag, which is connected to the elastic return element via a connecting tube and air guide. This converts displacement into deformation of the elastic return element, which in turn drives the displacement transmission rod to complete the transmission of the physical signal.

[0020] The present invention uses an adjustment mechanism, an electric push rod in the transmission mode switching assembly drives the linkage synchronization plate, driving the sliding adjustment ring to slide axially along the driving shaft, and realizes mode switching through the precise cooperation of the elastic limit rod and the positioning groove. In automatic mode, the fixed motor drives the lead screw through the active transmission gear and the driven transmission gear; in manual mode, the manual adjustment handle is rotated to achieve fine adjustment through the worm-worm wheel and gear set transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of a second perspective perspective of the present invention;

[0023] Figure 3 It is a main schematic diagram of the present invention;

[0024] Figure 4 Schematic cross-sectional view of the guide and limiting plate of the present invention;

[0025] Figure 5 This is a cross-sectional schematic diagram of the electronic control integrated box of the present invention;

[0026] Figure 6 This is a schematic left side view of the transmission mode switching assembly of the present invention;

[0027] Figure 7 This is a schematic diagram of a half-section of the air guide tube of the present invention;

[0028] Figure 8 Schematic top view of the ratchet of the present invention;

[0029] Figure 9 This is a schematic cross-sectional perspective diagram of the positioning support base of the present invention;

[0030] Figure 10 It is a left side cross-sectional schematic diagram of the positioning support base of the present invention.

[0031] In the figure: 1. traction frame; 2. positioning support base; 3. detection mechanism; 31. rotating detection roller; 32. axial limit assembly; 321. inner limit ring; 322. reset spring A; 323. limit ball; 324. outer limit ring; 325. limit guide rod; 33. cam; 34. displacement sensing plate; 35. first reset spring; 36. pressure sensing airbag; 37. connecting pipe; 38. air guide pipe; 39. elastic reset element; 310. displacement transmission rod; 4. adjustment mechanism; 41. quick clamping assembly; 42. linear moving slider; 43. screw rod; 44. driving shaft; 45. transmission mode switching assembly; 451. sliding adjustment ring; 452. elastic limit rod; 453. positioning block; 454. linkage synchronization plate; 455. electric push rod; 4 6. Driven transmission gear; 47. Driving transmission gear; 48. Fixed motor; 49. Electronic control integrated box; 410. Sliding rheostat; 411. Sliding contact; 412. Intelligent control device; 413. Driven gear; 414. Driving gear; 415. Worm gear; 416. Worm; 417. Manual adjustment handle; 5. Calf fixing strap; 6. Locking tongue; 7. Buckle base; 8. Spring; 9. Rotating support seat; 10. Guide limit plate; 11. Pawl; 12. Reset compression spring; 13. Ratchet; 14. Height adjustment screw A; 15. Adjustment nut A; 16. Support column A; 17. Height adjustment screw B; 18. Adjustment nut B; 19. Support column B; 20. Rigid connecting arm; 21. Vertical lifting axis; 22. Multi-function adapter. DETAILED DESCRIPTION

[0032] 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.

[0033] Example 1

[0034] See also Figures 1 to 10 , the present invention provides a technical solution: an ankle arthroscopy traction device that is easy to install, comprising: a traction frame 1, the traction frame 1 is used for traction and stretching the ankle joint;

[0035] It also includes: a positioning support base 2; the positioning support base 2 limits the position of the traction frame 1;

[0036] Detection mechanism 3, which is installed inside the positioning support base 2. Before traction of the patient's ankle joint, the detection mechanism 3 detects the thickness of the patient's mid-calf;

[0037] The adjusting mechanism 4 is installed at the bottom of the traction frame 1. The adjusting mechanism 4 controls the running speed in the same time according to the thickness of the patient's middle calf detected by the detecting mechanism 3. When the thickness of the middle calf is higher, the moving speed of the traction frame 1 is increased in the same time.

[0038] The detection mechanism 3 includes a rotating detection roller 31 rotatably connected to the inside of the positioning support base 2, one end of the rotating detection roller 31 is slidably connected to an axial limit assembly 32, one end of the surface of the rotating detection roller 31 is fixedly connected to a cam 33, one end of the cam 33 contacts a displacement sensing plate 34, the displacement sensing plate 34 is slidably connected to the inside of the positioning support base 2, and its bottom is fixedly connected to a first return spring 35, the first return spring 35 is fixedly connected to the inside of the positioning support base 2, the bottom of the displacement sensing plate 34 contacts a pressure sensing airbag 36, one end of the pressure sensing airbag 36 is fixedly connected to a connecting tube 37, one end of the connecting tube 37 is fixedly connected to an air guide tube 38, the inside of the air guide tube 38 is fixedly connected to an elastic return element 39, and one end of the elastic return element 39 is fixedly connected to a displacement conduction rod 310.

[0039] The axial limiting assembly 32 includes an inner limiting ring 321 slidably connected to one side of the rotating detection roller 31, and a first sliding groove adapted to the inner limiting ring 321 is provided on the surface of the rotating detection roller 31, and a second return spring is fixedly connected to one side of the inner limiting ring 321, and one end of the second return spring is fixedly connected to a limiting ball 323, and the surface of the limiting ball 323 contacts the outer limiting ring 324, and one end of the outer limiting ring 324 is fixedly connected to the limiting guide rod 325, and a first empty groove adapted to the limiting guide rod 325 is provided on the surface of the positioning support base 2.

[0040] The surface of the rotating detection roller 31 is wrapped with a calf fixing strap 5, one end of the calf fixing strap 5 is fixedly connected to a locking tongue 6, one end of the locking tongue 6 is clamped with a buckle base 7, the buckle base 7 is fixedly connected to the inside of the positioning support base 2, and the surface of the positioning support base 2 is provided with a second empty groove that is compatible with the buckle base 7. The side of the rotating detection roller 31 close to the axial limiting component 32 is fixedly connected to a spring 8, one end of the spring 8 is fixedly connected to a rotating support seat 9, the rotating support seat 9 is fixedly connected to the inside of the positioning support base 2, and the inside of the rotating support seat 9 is provided with a third empty groove that is compatible with the rotating detection roller 31.

[0041] When the patient is ready to receive traction, the calf fixing strap 5 is wrapped around the middle of the patient's calf and fixed by the engagement of the locking tongue 6 with the buckle base 7. The gravity of the patient's calf and the tension of the strap cause the rotating detection roller 31 to overcome the resistance of the spring 8 and rotate. The strap wrapped around the surface of the rotating detection roller 31 drives the rotating detection roller 31 to rotate. At this time, the spring 8 is stretched and stores force, providing power for the subsequent reset of the detection roller; and the inner limit ring 321 in the axial limit assembly 32 slides in the first slide groove, cooperates with the second return spring, the limit ball 323 and the outer limit ring 324 to limit the axial movement of the rotating detection roller 31, ensuring that it rotates only in the circumferential direction to maintain the stability and accuracy of the detection. When the rotating detection roller 31 rotates, the cam 33 fixed at its end rotates accordingly. When the cam 33 protrusion contacts the displacement sensing plate 34, it pushes the displacement sensing plate 34 to overcome the elastic force of the first return spring 35. The interior of the positioning support base 2 slides downward, and the displacement sensing plate 34 moves downward to squeeze the pressure sensing airbag 36 below. The airbag is deformed by pressure, and the internal gas flows into the air duct 38 through the connecting tube 37. The elastic reset element 39 in the air duct 38 is deformed under the action of gas pressure, driving the displacement conduction rod 310 to produce displacement, and converting the mechanical signal of the rotation of the rotating detection roller 31 caused by the thickness of the calf into a displacement signal of the displacement conduction rod 310, providing an adjustment basis for the subsequent adjustment mechanism 4. The displacement conduction rod 310 is connected to the sliding contact 411 of the sliding rheostat 410 in the electronic control integrated box 49 of the adjustment mechanism 4. The displacement of the displacement conduction rod 310 causes the sliding contact 411 to slide on the sliding rheostat 410, changing the resistance value in the circuit. The intelligent control device 412 monitors the resistance value change in real time, and converts the resistance value signal into a control instruction according to the preset program to accurately adjust the speed of the fixed motor 48. When the detection mechanism 3 reports that the middle part of the calf is thicker, the change in resistance value triggers the intelligent control device 412 to increase the speed of the fixed motor 48, and drives the driving shaft 44 to rotate rapidly through the active transmission gear 47 and the driven transmission gear 46, and drives the screw rod 43 to make the linear moving slider 42 drive the traction frame 1 to move quickly, thereby achieving rapid traction; on the contrary, when the calf is thinner, the traction speed is reduced, thereby achieving personalized traction speed adjustment.

[0042] The adjusting mechanism 4 includes a quick-clamping component 41 that is clamped at the bottom of the traction frame 1, and one end of the quick-clamping component 41 is fixedly connected to a linear moving slider 42, and the interior of the linear moving slider 42 is slidably connected to a screw rod 43, and one end of the screw rod 43 is fixedly connected to a driving shaft 44, and the surface of the driving shaft 44 is slidably connected to a transmission mode switching component 45, and the side of the surface of the driving shaft 44 close to the transmission mode switching component 45 is rotatably connected to a driven transmission gear 46, and an active transmission gear 47 is meshed between the teeth of the driven transmission gear 46, and one end of the active transmission gear 47 is fixedly connected to a fixed motor 48, and the bottom of the fixed motor 48 is fixedly connected to an electronic control integrated box 49, and a sliding rheostat 410 is fixedly connected to the interior of the electronic control integrated box 49, and a sliding contact 411 is slidably connected to the surface of the sliding rheostat 410, and the sliding contact 411 is fixedly connected to one end of the displacement conduction rod 310, and an intelligent control device 412 is arranged inside the electronic control integrated box 49.

[0043] The fixed motor 48 serves as the power source. After the fixed motor 48 is started, it drives the active transmission gear 47 connected to it to rotate. The active transmission gear 47 engages with the driven transmission gear 46 to transmit power to the driving shaft 44. The driving shaft 44 drives the screw rod 43 to rotate. Since the linear moving slider 42 is threadedly matched with the screw rod 43 and slides in the fourth empty slot of the guide limit plate 10, the rotational motion of the screw rod 43 is converted into the linear motion of the linear moving slider 42. The linear moving slider 42 is connected to the traction frame 1 through the quick clamping assembly 41, thereby driving the traction frame 1 to move in a specific direction to achieve traction of the ankle joint.

[0044] The transmission mode switching assembly 45 includes a sliding adjustment ring 451 slidingly connected to the surface of the driving shaft 44, the surface of the sliding adjustment ring 451 is fixedly connected to an elastic limiting rod 452, one end of the elastic limiting rod 452 is fixedly connected to a positioning block 453, the surface of the sliding adjustment ring 451 is rotatably connected to a linkage synchronization plate 454, one end of the linkage synchronization plate 454 is fixedly connected to an electric push rod 455, and the electric push rod 455 is fixedly connected to the inside of the electronic control integrated box 49.

[0045] When it is necessary to switch the traction mode, the electric push rod 455 in the electronic control integrated box 49 receives the control signal and retracts. The electric push rod 455 pushes the linkage synchronization plate 454 to rotate, and the linkage synchronization plate 454 drives the sliding adjustment ring 451 to slide on the surface of the driving shaft 44. During the movement of the sliding adjustment ring 451, the elastic limit rod 452 cooperates with the positioning block 453 to ensure that the sliding adjustment ring 451 is accurately positioned. When the sliding adjustment ring 451 moves to a specific position, the automatic mode and the manual mode can be switched. When the sliding adjustment ring 451 is in the automatic mode position, the fixed motor 48 drives the traction frame 1 according to the signal transmitted by the detection mechanism 3; when switching to the manual mode position, the manual adjustment handle 417 is rotated, and the worm 416 drives the worm gear 415, the driving gear 414, and the driven gear 413 to transmit in sequence, so that the driving shaft 44 rotates, thereby realizing manual control of the movement of the traction frame 1.

[0046] One end of the electric control integrated box 49 is fixedly connected to the guide limit plate 10 , and the screw rod 43 is rotatably connected to the inside of the guide limit plate 10 . A fourth empty slot is provided on the surface of the guide limit plate 10 to match the linear moving slider 42 .

[0047] The driving shaft 44 is rotatably connected to the side away from the driven transmission gear 46, and a driving gear 414 is meshed between the teeth of the driven gear 413. One end of the driving gear 414 is fixedly connected to a worm gear 415, and a worm 416 is meshed between the teeth of the worm gear 415. One end of the worm gear 416 is fixedly connected to a manual adjustment handle 417.

[0048] Example 2

[0049] like Figures 1 to 3 In the second embodiment, other structures remain unchanged. The difference from the first embodiment is that the bottom of the positioning support base 2 is rotatably connected to a pawl 11, one end of the pawl 11 is fixedly connected to a return compression spring 12, the return compression spring 12 is fixedly connected to the inside of the positioning support base 2, the bottom of the pawl 11 is fixedly connected to a torsion piece, a ratchet 13 is meshed between the teeth of the pawl 11, the bottom of the ratchet 13 is fixedly connected to a height adjustment screw A14, the surface of the height adjustment screw A14 is rotatably connected to an adjusting nut A15, the bottom of the adjusting nut A15 is rotatably connected to a support column A16, the bottom of the support column A16 is fixedly connected to a height adjustment screw B17, the surface of the height adjustment screw B17 is rotatably connected to an adjusting nut B18, the bottom of the adjusting nut B18 is rotatably connected to a support column B19, one end of the support column A16 is fixedly connected to a rigid connecting arm 20, one end of the rigid connecting arm 20 is fixedly connected to a vertical lifting shaft 21, and the surface of the vertical lifting shaft 21 is fixedly connected to a multi-functional adapter 22.

[0050] The positioning support base 2 not only provides installation space for the detection mechanism 3, but also guarantees the overall stability of the device through the height adjustment structure at the bottom and the pawl 11-ratchet wheel 13 locking mechanism. By rotating the twisting member, the extension length of the height adjustment screw rod A14 and the height adjustment screw rod B17 is adjusted through the adjusting nut A15 and the adjusting nut B18, thereby changing the height of the support column A16 and the support column B19, so that the positioning support base 2 adapts to different surgical scenes. After adjustment, the pawl 11 is clamped between the teeth of the ratchet wheel 13 under the action of the reset compression spring 12, locking the base height, preventing the height adjustment screw from rotating, ensuring the stable support of the positioning support base 2. The positioning support base 2 precisely limits the position of the traction frame 1. The traction frame 1 is connected to the adjusting mechanism 4 through the quick clamping assembly 41 and is installed above the positioning support base 2. The positioning support base 2 provides a stable support foundation for the traction frame 1, avoiding shaking or deviation of the traction frame 1 during traction. The extension structure composed of the rigid connecting arm 20, the vertical lifting shaft 21 and the multifunctional adapter 22 is installed on the positioning support base 2 and can be connected to auxiliary equipment such as lighting and camera. It cooperates with the positioning support base 2 to create a good environment for surgical operation, improve the visibility and convenience of surgery, and provide convenient conditions for surgical operation, ensuring stable and efficient traction process.

[0051] The above electronic devices are powered by internal batteries (not shown) or external wires (not shown).

[0052] It should be noted that, in the present document, relational terms such as first and second, and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An ankle arthroscopic traction device that is easy to install, comprising: A traction frame, used for traction and stretching of the ankle joint; It is characterized in that: it also includes: a positioning support base; the positioning support base limits the position of the traction frame; A detection mechanism, the detection mechanism being installed inside the positioning support base, and the detection mechanism detecting the thickness of the patient's mid-calf before traction of the patient's ankle joint; The adjusting mechanism is installed at the bottom of the traction frame. The adjusting mechanism controls the running speed in the same time according to the thickness of the patient's middle calf detected by the detection mechanism. When the thickness of the middle calf is higher, the moving speed of the traction frame is increased in the same time.

2. The easy-to-install ankle arthroscopic traction device according to claim 1, characterized in that: The detection mechanism includes a rotating detection roller rotatably connected to the inside of the positioning support base, one end of the rotating detection roller is slidably connected to an axial limit assembly, one end of the surface of the rotating detection roller is fixedly connected to a cam, one end of the cam contacts a displacement sensing plate, the displacement sensing plate is slidably connected to the inside of the positioning support base, and a first return spring is fixedly connected to the bottom of the displacement sensing plate, the first return spring is fixedly connected to the inside of the positioning support base, the bottom of the displacement sensing plate contacts a pressure sensing airbag, one end of the pressure sensing airbag is fixedly connected to a connecting tube, one end of the connecting tube is fixedly connected to an air guide tube, the inside of the air guide tube is fixedly connected to an elastic return element, and one end of the elastic return element is fixedly connected to a displacement conduction rod.

3. The easy-to-install ankle arthroscopic traction device according to claim 2, characterized in that: The axial limit assembly includes an inner limit ring slidably connected to one side of the rotating detection roller, a first sliding groove adapted to the inner limit ring is provided on the surface of the rotating detection roller, a second return spring is fixedly connected to one side of the inner limit ring, one end of the second return spring is fixedly connected to a limit ball, the surface of the limit ball contacts an outer limit ring, one end of the outer limit ring is fixedly connected to a limit guide rod, and a first empty groove adapted to the limit guide rod is provided on the surface of the positioning support base.

4. The easy-to-install ankle arthroscopic traction device according to claim 2, characterized in that: The surface of the rotating detection roller is wrapped with a calf fixing strap, one end of the calf fixing strap is fixedly connected to a locking tongue, one end of the locking tongue is clamped to a buckle base, the buckle base is fixedly connected to the inside of the positioning support base, the surface of the positioning support base is provided with a second empty groove adapted to the buckle base, the side of the rotating detection roller close to the axial limit assembly is fixedly connected to a clockwork spring, one end of the clockwork spring is fixedly connected to a rotating support seat, the rotating support seat is fixedly connected to the inside of the positioning support base, and the inside of the rotating support seat is provided with a third empty groove adapted to the rotating detection roller.

5. The easy-to-install ankle arthroscopic traction device according to claim 1, characterized in that: The adjusting mechanism includes a quick clamping assembly that is clamped at the bottom of the traction frame, one end of the quick clamping assembly is fixedly connected to a linear movable slider, the interior of the linear movable slider is slidably connected to a screw rod, one end of the screw rod is fixedly connected to a driving shaft, the surface of the driving shaft is slidably connected to a transmission mode switching assembly, the surface of the driving shaft close to the transmission mode switching assembly is rotatably connected to a driven transmission gear, the teeth of the driven transmission gear are meshed with an active transmission gear, one end of the active transmission gear is fixedly connected to a fixed motor, the bottom of the fixed motor is fixedly connected to an electric control integrated box, the interior of the electric control integrated box is fixedly connected to a sliding rheostat, the surface of the sliding rheostat is slidably connected to a sliding contact, the sliding contact is fixedly connected to one end of the displacement conduction rod, and an intelligent control device is provided inside the electric control integrated box.

6. The easy-to-install ankle arthroscopic traction device according to claim 5, characterized in that: The transmission mode switching assembly includes a sliding adjustment ring slidably connected to the surface of the driving shaft, the surface of the sliding adjustment ring is fixedly connected to an elastic limiting rod, one end of the elastic limiting rod is fixedly connected to a positioning block, the surface of the sliding adjustment ring is rotatably connected to a linkage synchronization plate, one end of the linkage synchronization plate is fixedly connected to an electric push rod, and the electric push rod is fixedly connected to the inside of the electronic control integrated box.

7. The easy-to-install ankle arthroscopic traction device according to claim 5, characterized in that: One end of the electric control integrated box is fixedly connected to a guide limit plate, the screw rod is rotatably connected to the inside of the guide limit plate, and a fourth slot adapted to the linear moving slider is provided on the surface of the guide limit plate.

8. The easy-to-install ankle arthroscopic traction device according to claim 5, characterized in that: The driving shaft is rotatably connected to a driven gear on one side away from the driven transmission gear, a driving gear is meshed between the teeth of the driven gear, one end of the driving gear is fixedly connected to a worm wheel, a worm is meshed between the teeth of the worm wheel, and one end of the worm is fixedly connected to a manual adjustment handle.

9. The easy-to-install ankle arthroscopic traction device according to claim 1, characterized in that: The bottom of the positioning support base is rotatably connected to a pawl, one end of the pawl is fixedly connected to a reset compression spring, the reset compression spring is fixedly connected to the inside of the positioning support base, a ratchet is meshed between the teeth of the pawl, the bottom of the ratchet is fixedly connected to a height adjustment screw A, the surface of the height adjustment screw A is rotatably connected to an adjusting nut A, the bottom of the adjusting nut A is rotatably connected to a support column A, the bottom of the support column A is fixedly connected to a height adjustment screw B, the surface of the height adjustment screw B is rotatably connected to an adjusting nut B, and the bottom of the adjusting nut B is rotatably connected to the support column B.

10. The easy-to-install ankle arthroscopic traction device according to claim 9, characterized in that: One end of the support column A is fixedly connected to a rigid connecting arm, one end of the rigid connecting arm is fixedly connected to a vertical lifting shaft, and a multifunctional adapter is fixedly connected to the surface of the vertical lifting shaft.

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