Shoulder arthroscopy lateral position traction device

Abstract

The invention relates to the technical field of shoulder arthroscopy surgery, in particular to a shoulder arthroscopy lateral position traction device which comprises a fixing frame, and a traction mechanism is arranged at the top end of the fixing frame. The fixing frame is provided with a limiting mechanism for limiting the traction mechanism, the limiting mechanism comprises a pressed rod and a mounting rod, the top end of the pressed rod is fixedly connected with a fixing plate, the top end of the fixing plate is fixedly connected with a rubber pad, the pressed rod is fixedly connected with a round rod, and the mounting rod is fixedly connected with limiting gears which are symmetrically arranged. The mounting rod is rotatably connected with a linkage rod, a connecting groove is formed in the linkage rod, and linkage grooves which are symmetrically formed are formed in the linkage rod. The device has the beneficial effects that the operation convenience is remarkably improved, the fixing process is simplified, the device can be mounted and dismounted without the help of an external tool, and the device is convenient to use. In addition, the risk that parts are lost in the operation process is effectively avoided, and reliable guarantee is provided for long-term stable use.

Description

Technical Field

[0001] The invention relates to the technical field of shoulder arthroscopic surgery, in particular to a shoulder arthroscopic lateral position traction device. Background Art

[0002] Due to the special anatomical structure of the shoulder joint, patients with shoulder arthritis, biceps rupture and osteoarthritis usually need to adopt a lateral position when undergoing shoulder arthroscopy. In order to obtain a good surgical field of view and facilitate surgical operations, upper limb traction equipment is often required to maintain the abduction design requirements of the affected limb. Shoulder arthroscopy is suitable for surgical treatment of loose bodies, biceps rupture, osteoarthritis, etc. Shoulder arthroscopy minimally invasive surgery requires the patient to lie on his side and use auxiliary traction equipment to open the joint space of the patient's shoulder joint before surgical operations can be performed.

[0003] For example, the patent document with publication number CN109528256B provides a traction device for minimally invasive shoulder arthroscopy surgery, including a fixed seat, the top of the fixed seat is fixedly connected to a support tube, the inside of the support tube is slidably connected to a telescopic rod, a row of threaded holes is opened on the side wall of the telescopic rod, and a limit screw matching the threaded holes is sleeved on the tube wall of the support tube, the top of the telescopic rod is fixedly connected to a first U-shaped seat, the inside of the first U-shaped seat is rotatably connected to the support rod through a rotating shaft, the end of the support rod away from the telescopic rod is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to a traction mechanism by bolts, the traction mechanism includes a first threaded rod, a threaded sleeve and a second threaded rod, the first threaded rod is connected to the connecting plate by bolts, and the two ends of the threaded sleeve are threadedly connected to the first threaded rod and the second threaded rod respectively. The shoulder arthroscopic minimally invasive surgical traction device can be fine-tuned when the traction rope is pulled to avoid secondary injury to the patient's shoulder; although the above patent has many beneficial effects, it still has the following shortcomings: the device is fixed with fastening bolts, which are affected by human operation. The tightening degree of the bolts is difficult to unify the standard, which easily causes the local position of the device to be fixed and stable. When removing and installing the device, it is necessary to use external tools such as wrenches and screwdrivers to complete the disassembly. In order to make the device more stable, it is necessary to tighten the bolts vigorously. During the tightening process, the bolts are very likely to be damaged by slipping due to the large force. At this time, new bolts need to be replaced. In addition, the bolts are small in size and large in number, and are very easy to be lost during frequent use. At the same time, both will increase the cost of using the device. Summary of the Invention

[0004] In view of the problem that the traction device in the prior art is inconvenient to assemble and disassemble, the present invention provides a lateral decubitus traction device for shoulder arthroscopy.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a shoulder arthroscopy lateral position traction device, comprising a fixing frame, the top of which is provided with a traction mechanism; The top of the compression rod is fixedly connected to the fixing plate, the top of the fixing plate is fixedly connected to the rubber pad, the compression rod is fixedly connected to the round rod, the mounting rod is fixedly connected to the limiting gear symmetrically arranged, the mounting rod is rotatably connected to the connecting rod, the connecting rod is provided with a connecting slot, and a symmetrically arranged connecting slot is provided inside the connecting rod. One end of the connecting rod is fixedly connected to the handle, the handle is slidably connected to the moving rod symmetrically arranged, one end of the moving rod is slidably connected to the pulling handle, and the other end of the moving rod is fixedly connected to a card block, the pulling handle is slidably connected to the fixing rod, the handle is provided with a fixing slot, and a passage slot is provided on the handle corresponding to the fixing slot.

[0006] Specifically, the traction mechanism includes a support rod, the top end of the support rod is fixedly connected to a support seat, the support seat is rotatably connected to a cross rod, one side of the bottom end of the cross rod is fixedly connected to a hinge seat, a tightening seat is provided near the middle position of the bottom end of the cross rod, a motor is fixedly installed on the tightening seat, a support block is fixedly connected to the bottom end of the cross rod at a position adjacent to the tightening seat, a tightening rope is slidably connected to the support block, one end of the tightening rope is fixedly connected to a fixing sleeve, and a Velcro is provided on the fixing sleeve, and one side of the support rod is rotatably connected to an electric telescopic rod.

[0007] Specifically, the support rod is rotatably connected to the top of the fixed frame, the hinged seat is hinged to the output end of the electric telescopic rod, the other end of the tightening rope is fixedly connected to the shaft of the tightening seat, and one end of the shaft of the tightening seat is fixedly connected to the output end of the motor.

[0008] Specifically, the fixing frame is in a C-shape, the compression rod is slidably connected to the bottom wall of the fixing frame, and the mounting rod is fixedly connected to the bottom end of the fixing frame.

[0009] Specifically, the top end of the pressure rod slides through the bottom wall of the fixing frame and is fixedly connected to the fixing plate, the connecting groove and the linkage groove are in a communicating state, the bottom end of the pressure rod is located inside the connecting groove, and the round rod is slidably connected inside the linkage groove.

[0010] Specifically, one end of the movable rod passes through the outer wall of the handle and is fixedly connected to the pulling handle, the pulling handle is slidably connected to the inside of the handle, the clamping blocks are engaged with the corresponding limit gears, the fixed rod is T-shaped, and one end of the fixed rod is slidably connected to the inside of the fixed groove, and the fixed groove and the pass groove are in a communicating state.

[0011] Beneficial effects of the present invention: Through the mechanical linkage of the limit mechanism, the device can be fixed or separated from the bedside by simply pushing or pulling the fixing rod and turning the handle. No external tools such as wrenches or screwdrivers are required. This completely eliminates the dependence on tools for traditional bolt fixation, greatly shortens operation time, simplifies the operation process, and significantly reduces the operating burden on medical staff. The meshing structure of the limit gear and the clamping block can provide a stable locking force, avoiding the local unstable fixation problem caused by the different tightening degrees of traditional bolts. The friction generated by the tight compression between the rubber pad and the bottom of the bed edge, combined with the flat support of the fixing plate, forms a stable fixation effect with uniform force at multiple points, ensuring that the device does not shake or shift during the traction process. The use of the limit mechanism completely solves the problem of bolt stripping and breakage requiring frequent replacement, while avoiding the risk of frequent loss due to the large number of bolts and their small size, saving parts procurement and maintenance costs. When the connecting rod rotates, the sliding of the round rod in the connecting groove can drive the compression rod to rise and fall vertically. The rubber pad fits tightly to the irregular surface of the bed edge through deformation, automatically adapting to different bed structures, further improving the fixation reliability and avoiding fixation failure caused by differences in bed edge material or shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and examples.

[0013] Figure 1 The front view provided by the present invention; Figure 2 A specific structural diagram of the limiting mechanism provided by the present invention; Figure 3 A specific structural diagram of the convergence seat provided by the present invention; Figure 4 A structural diagram showing the separation of the compression rod and the fixing frame provided by the present invention; Figure 5 A diagram showing the separation structure of the movable rod and the handle provided by the present invention; Figure 6 This is a cross-sectional structural diagram of the handle and the pulling handle provided by the present invention.

[0014] In the figure: 1. Fixed frame; 2. Pulling mechanism; 21. Support rod; 22. Support seat; 23. Cross bar; 24. Articulated seat; 25. Closing seat; 26. Motor; 27. Support block; 28. Tightening rope; 29. ​​Fixed sleeve; 201. Velcro; 202. Electric telescopic rod; 3. Limiting mechanism; 31. Pressure rod; 32. Mounting rod; 33. Fixed plate; 34. Rubber pad; 35. Round rod; 36. Limiting gear; 37. Linking rod; 38. Connecting groove; 39. Linking groove; 301. Handle; 302. Moving rod; 303. Pulling handle; 304. Block; 305. Fixed rod; 306. Fixed groove; 307. Pass groove. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0016] See also Figures 1 to 6 , the present invention provides the following technical solutions: Embodiment 1: A lateral decubitus traction device for shoulder arthroscopy, comprising a fixing frame 1, a traction mechanism 2 is provided at the top of the fixing frame 1, the traction mechanism 2 comprises a support rod 21, the top of the support rod 21 is fixedly connected to a support seat 22, a cross bar 23 is rotatably connected to the support seat 22, a hinge seat 24 is fixedly connected to one side of the bottom end of the cross bar 23, a convergence seat 25 is provided near the middle position of the bottom end of the cross bar 23, a motor 26 is fixedly installed on the convergence seat 25, and the bottom end of the cross bar 23 is fixedly connected to the adjacent position of the convergence seat 25 There is a support block 27, a tightening rope 28 is slidably connected to the support block 27, one end of the tightening rope 28 is fixedly connected to a fixing sleeve 29, and a Velcro 201 is provided on the fixing sleeve 29. One side of the support rod 21 is rotatably connected to the electric telescopic rod 202, the support rod 21 is rotatably connected to the top of the fixing frame 1, the hinged seat 24 is hinged to the output end of the electric telescopic rod 202, the other end of the tightening rope 28 is fixedly connected to the shaft of the tightening seat 25, and one end of the shaft of the tightening seat 25 is fixedly connected to the output end of the motor 26; During use, the traction device can be fixed to the edge of the bed through the fixing frame 1, and then the patient's position can be adjusted to a lateral position, and then the support rod 21 can be rotated to a suitable angle, and the patient's arm can be manually placed in the fixing sleeve 29, and then the fixing sleeve 29 can be wrapped tightly around the patient's wrist through the Velcro 201, and then the motor 26 can be used to drive the tightening seat 25 shaft to rotate. At this time, the tightening rope 28 will be tightened by the rotating tightening seat 25 shaft, thereby tightening the tightening rope 28 to adjust the lifting height of the patient's arm, and then the electric telescopic rod 202 can be started. The retraction of the output end of the electric telescopic rod 202 will drive the cross bar 23 to rotate through the articulated seat 24, and the cross bar 23 will rotate under the support of the support seat 22. The rotation of the cross bar 23 will also adjust the position of the patient's arm again through the tightening rope 28. After the adjustment is completed, the operation can be performed.

[0017] Embodiment 2: The technical solution of this embodiment is different from that of embodiment 1 in that: a limiting mechanism 3 for limiting the position of the traction mechanism 2 is provided on the fixing frame 1, the limiting mechanism 3 includes a pressure rod 31 and a mounting rod 32, the top of the pressure rod 31 is fixedly connected to a fixing plate 33, the top of the fixing plate 33 is fixedly connected to a rubber pad 34, a round rod 35 is fixedly connected to the pressure rod 31, a symmetrically arranged limiting gear 36 is fixedly connected to the mounting rod 32, a connecting rod 37 is rotatably connected to the mounting rod 32, and a connecting groove 3 is provided on the connecting rod 37 8. A symmetrically arranged linkage groove 39 is defined within the linkage rod 37. One end of the linkage rod 37 is fixedly connected to a handle 301. A symmetrically arranged moving rod 302 is slidably connected to the handle 301. One end of the moving rod 302 is slidably connected to a pulling handle 303. The other end of each moving rod 302 is fixedly connected to a clamping block 304. A fixing rod 305 is slidably connected to the pulling handle 303. A fixing groove 306 is defined on the handle 301. A passage groove 307 is defined on the handle 301 at the position corresponding to the fixing groove 306. The specific shape of the fixing frame 1 is a C-shaped setting, the pressure rod 31 is slidably connected to the bottom wall of the fixing frame 1, the installation rod 32 is fixedly connected to the bottom end of the fixing frame 1, the top of the pressure rod 31 slides through the bottom wall of the fixing frame 1 and is fixedly connected to the fixing plate 33, the connecting groove 38 and the linkage groove 39 are in a state of communication, the bottom end of the pressure rod 31 is located inside the connecting groove 38, the round rod 35 is slidably connected inside the linkage groove 39, one end of the moving rod 302 passes through the outer wall of the handle 301 and is fixedly connected to the pulling handle 303, the pulling handle 303 is slidably connected to the inside of the handle 301, the blocking blocks 304 are all engaged with the corresponding limiting gears 36, the fixing rod 305 is T-shaped, one end of the fixing rod 305 is slidably connected to the inside of the fixing groove 306, and the fixing groove 306 and the pass groove 307 are in a state of communication; When in use, the fixing frame 1 can be connected to the bed edge, and then the fixing rod 305 can be pushed in the direction of the passage groove 307. At this time, the fixing rod 305 will move in the fixing groove 306 in the direction of the passage groove 307. When the fixing rod 305 moves to the position corresponding to the passage groove 307, the pulling handle 303 can be directly pulled. The movement of the pulling handle 303 will drive the fixing rod 305 to pass through the passage groove 307. At the same time, the movement of the pulling handle 303 will drive the two moving rods 302 to move together. The movement of the moving rod 302 will drive the block 304 to move. The movement of the block 304 will separate from the corresponding limit gear 36. At this time, the handle 301 and the connecting rod 3 The position fixation of 7 is released. At this time, you can hold the handle 301 and push the handle 301 upward. The handle 301 rotates upward with the mounting rod 32 as the center of the circle, which will drive the connecting rod 37 to rotate upward together. The connecting groove 39 on the connecting rod 37 will squeeze the round rod 35. At this time, the round rod 35 is compressed and moves upward during the upward rotation of the connecting rod 37. The upward movement of the round rod 35 will drive the compressed rod 31 to move together. The upward movement of the compressed rod 31 will drive the fixing plate 33 and the rubber pad 34 to move together. The moving rubber pad 34 will tightly abut against the bottom wall of the bed. At this time, as the staff continues to rotate the connecting rod 37, the compressed rod The rod 31 will continue to drive the fixing plate 33 and the rubber pad 34 to move upward. At this time, the rubber pad 34 is squeezed against the bottom wall of the bed edge, and the rubber pad 34 will be deformed due to the force of the upward movement. The friction force generated when the rubber pad 34 is tightly squeezed against the bottom of the bed edge, combined with the plane support of the fixing plate 33, forms a stable fixing effect with uniform force at multiple points, ensuring that the device does not shake or shift during the traction process. After the fixing plate 33 and the rubber pad 34 are moved, the staff can directly push the fixing rod 305 into the handle 301. The sliding of the fixing rod 305 in the passage groove 307 will drive the pulling handle 303 and the moving rod 302 to reset. When the lever 302 is moved back to its original position, the movable rod 302 will also drive the card block 304 to reset. When the card block 304 is reset, it will engage with the corresponding limit gear 36. At this time, the fixing rod 305 can be pushed directly toward the fixing groove 306 to reconnect it to the inside of the fixing groove 306. At this time, the handle 301 can be released, and the traction device is fixed. The same is true for disassembling the traction device. The overall operation time is greatly shortened, the operation process is simplified, and the operation burden of medical staff is significantly reduced. The problem of bolt stripping and breakage requiring frequent replacement is completely solved, while the risk of frequent loss due to the large number and small size of the bolts is avoided, saving parts procurement and maintenance costs.

[0018] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shoulder arthroscopy lateral decubitus traction device, comprising a fixing frame (1), wherein a traction mechanism (2) is provided at the top end of the fixing frame (1); Its characteristics are: The fixing frame (1) is provided with a limiting mechanism (3) for limiting the position of the traction mechanism (2), the limiting mechanism (3) comprising a pressure rod (31) and a mounting rod (32), the top end of the pressure rod (31) is fixedly connected to a fixing plate (33), the top end of the fixing plate (33) is fixedly connected to a rubber pad (34), the pressure rod (31) is fixedly connected to a round rod (35), the mounting rod (32) is fixedly connected to a symmetrically arranged limiting gear (36), the mounting rod (32) is rotatably connected to a connecting rod (37), the connecting rod (37) is provided with a connecting groove (38), the connecting rod (37) A symmetrically arranged linkage groove (39) is provided inside, one end of the linkage rod (37) is fixedly connected to a handle (301), a symmetrically arranged moving rod (302) is slidably connected to the handle (301), one end of the moving rod (302) is slidably connected to a pulling handle (303), the other end of each moving rod (302) is fixedly connected to a clamping block (304), a fixing rod (305) is slidably connected to the pulling handle (303), a fixing groove (306) is provided on the handle (301), and a passage groove (307) is provided on the handle (301) at a position corresponding to the fixing groove (306).

2. A shoulder arthroscopic lateral decubitus traction device according to claim 1, characterized in that: The traction mechanism (2) comprises a support rod (21), the top end of the support rod (21) is fixedly connected to a support seat (22), the support seat (22) is rotatably connected to a cross rod (23), one side of the bottom end of the cross rod (23) is fixedly connected to a hinge seat (24), a tightening seat (25) is provided at a position near the middle of the bottom end of the cross rod (23), a motor (26) is fixedly mounted on the tightening seat (25), a support block (27) is fixedly connected to the bottom end of the cross rod (23) at a position adjacent to the tightening seat (25), a tightening rope (28) is slidably connected to the support block (27), one end of the tightening rope (28) is fixedly connected to a fixing sleeve (29), and a Velcro (201) is provided on the fixing sleeve (29), and one side of the support rod (21) is rotatably connected to an electric telescopic rod (202).

3. The shoulder arthroscopic lateral decubitus traction device according to claim 2, characterized in that: The support rod (21) is rotatably connected to the top end of the fixed frame (1), the hinge seat (24) is hinged to the output end of the electric telescopic rod (202), the other end of the tightening rope (28) is fixedly connected to the shaft of the tightening seat (25), and one end of the shaft of the tightening seat (25) is fixedly connected to the output end of the motor (26).

4. The shoulder arthroscopic lateral decubitus traction device according to claim 1, characterized in that: The specific shape of the fixing frame (1) is a C-shaped arrangement, the pressure rod (31) is slidably connected to the bottom wall of the fixing frame (1), and the installation rod (32) is fixedly connected to the bottom end of the fixing frame (1).

5. The shoulder arthroscopic lateral decubitus traction device according to claim 1, characterized in that: The top end of the pressure rod (31) slides through the bottom wall of the fixing frame (1) and is fixedly connected to the fixing plate (33). The connecting groove (38) and the linkage groove (39) are in a communicating state. The bottom end of the pressure rod (31) is located inside the connecting groove (38), and the round rod (35) is slidably connected inside the linkage groove (39).

6. The shoulder arthroscopic lateral decubitus traction device according to claim 1, characterized in that: One end of the movable rod (302) passes through the outer wall of the handle (301) and is fixedly connected to the pulling handle (303). The pulling handle (303) is slidably connected to the inside of the handle (301). The clamping blocks (304) are all engaged with the corresponding limiting gears (36). The fixed rod (305) is T-shaped. One end of the fixed rod (305) is slidably connected to the inside of the fixed groove (306). The fixed groove (306) and the passage groove (307) are in a communicating state.

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