Shoulder joint glenohumeral joint spreader

Abstract

The invention discloses a shoulder joint glenohumeral joint dilator and belongs to the field of medical instruments, the shoulder joint glenohumeral joint dilator comprises a left forceps handle, a right forceps handle is arranged on the right side of the left forceps handle, vertical blocks are fixedly connected to the top ends of the left forceps handle and the right forceps handle, rotating openings are formed in the upper surfaces of the vertical blocks, and rotating grooves are symmetrically formed in the rotating openings; a supporting rod is arranged in the rotating opening; the shoulder joint glenohumeral joint dilator shows excellent stability and accuracy in structural design. The left forceps handle and the right forceps handle are rotationally connected and matched with the vertical block, the rotating opening, the rotating groove, the supporting rod and other components, the opening and closing process of the instrument is stable, the opening amplitude is accurately controlled through cooperative work of the rotating column and the gear, it is ensured that the joint can be stably opened to the ideal position during surgical operation, and the situation that the surgical effect is affected due to instrument shaking or inaccurate opening degree is avoided. The spring in the elastic groove is combined with the sliding plate to provide restoring force for the instrument, position deviation caused by external force is effectively prevented, and the stability of joint supporting in the operation is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a shoulder glenohumeral joint distractor. Background Art

[0002] The shoulder joint is one of the most flexible joints in the human body, but it is also one of the parts most prone to injury and degeneration. The glenohumeral joint is composed of the humeral head and the glenohumeral fossa (glenoid cavity) of the scapula, and is responsible for various complex movements of the upper limbs. However, due to its large range of motion and high flexibility, the shoulder joint is prone to injury under the action of external forces, especially for athletes, the elderly, and some groups engaged in repetitive and high-intensity activities. Shoulder joint injuries are more common. In the treatment of shoulder joint diseases, especially during shoulder surgery, doctors often need to use joint spreaders to provide stable support to ensure the smooth progress of the operation; Traditional shoulder spreaders mostly use simple mechanical designs, with bulky structures, complicated operations, and difficulty in providing sufficient stability and precision during surgery. In addition, the opening and closing methods of some spreaders are too simple to meet the needs of different surgeries. They require greater force when used, which can easily cause discomfort to patients. With the advancement of medical technology, especially the widespread application of arthroscopy and minimally invasive surgery, surgical equipment requirements are getting higher and higher. The new shoulder spreader must not only ensure the high strength and durability of the equipment, but also have more precise opening and closing control and a more flexible adjustment mechanism to adapt to different surgical operations and patient needs; The development of a new type of shoulder glenohumeral joint distractor that can provide more stable, precise and easy-to-operate support has become an urgent need in the current medical device field. This innovative device can not only improve the success rate of surgery and reduce surgery time, but also reduce the discomfort of patients during surgery, and has broad clinical application prospects. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a device that is more convenient and comfortable to operate; another purpose of the present invention is to provide an adjustable angle to make the surgical process more efficient.

[0004] The cam is provided with a plurality of springs on the opposite sides of the slide, and the top of the support rod is fixedly connected with a joint support plate, and the left and right clamp handles are rotatably connected with each other.

[0005] Furthermore, a circular cavity is fixedly connected to the right side of the vertical block on the left, and a circular block is fixedly connected to the left side of the vertical block on the right. A connecting rotating block is symmetrically fixedly connected to the outer wall of the circular block. A bayonet is provided on the right side of the circular cavity, and a circular opening is provided on the inner wall of the circular cavity. Both connecting rotating blocks are rotatably connected to the adjacent circular openings.

[0006] Furthermore, a left elastic bar is fixedly connected to the right side of the outer wall of the left clamp handle, and a right elastic bar is fixedly connected to the left side of the outer wall of the right clamp handle. A sliding hole is opened on the right side of the left elastic bar, and the sliding hole is slidably connected to the outer wall of the right elastic bar.

[0007] Furthermore, an arc-shaped groove is provided on the left side of the outer side wall of the right clamp handle, a clamping strip is provided inside the arc-shaped groove, a rotating hole is provided on the right side of the outer side wall of the clamping strip, and a cross bar is rotatably connected inside the rotating hole.

[0008] Furthermore, both ends of the cross bar are fixedly connected to the inner wall of the arc-shaped groove, the outer wall of the cross bar is symmetrically surrounded by a reset spring ring, the bottom end of the reset spring ring is fixedly connected to the outer wall of the clamping strip, the top end of the reset spring ring is fixedly connected to the inner wall of the arc-shaped groove, a through-type cross groove is opened on the right side of the left clamp handle, the inner upper surface of the cross groove is fixedly connected with a wedge-shaped buckle, and the clamping strip is slidably connected to the inside of the cross groove.

[0009] Furthermore, the joint support plate includes a spoon-shaped round block, and a concave groove is formed on the right side of the spoon-shaped round block.

[0010] Furthermore, the left clamp handle, the right clamp handle, the vertical block, the support rod and the round pad are all made of stainless steel.

[0011] Beneficial effects: The shoulder glenohumeral joint distractor shows excellent stability and precision in structural design. The rotating connection between the left and right clamp handles cooperates with the vertical block, swivel, swivel groove, support rod and other components to make the opening and closing process of the instrument smooth. The coordinated work of the rotating column and the gear accurately controls the opening range, ensuring that the joint can be stably distracted to the ideal position during the operation, avoiding the impact of the surgical effect due to shaking of the instrument or inaccurate opening. The spring and slide combination in the spring groove provides restoring force for the instrument, effectively preventing position displacement caused by external force, and ensuring the stability of joint support during surgery. The spoon-shaped round block and concave groove design of the joint support plate fit the joint shape, further enhancing the support effect, allowing medical staff to perform treatment operations more attentively and accurately, greatly improving the success rate and quality of the operation, and reducing surgical risks caused by instrument factors; The key components made of stainless steel have many significant advantages. The corrosion resistance of stainless steel enables the left and right forceps handles and other parts to maintain structural integrity and performance stability for a long time in the medical environment, even if they are frequently exposed to biological fluids and disinfectants, effectively extending the service life of the equipment and reducing medical costs. Among them, the foldable angle function of the support rod is particularly prominent. During the preparation and storage of instruments before and after surgery, the support rod can be folded at an angle. This feature greatly reduces the space occupied by the instrument and facilitates medical staff to store, carry and organize it. During the operation, the angle of the support rod can be flexibly adjusted according to actual needs, accurately adapting to the anatomical structure of the shoulder glenohumeral joint and surgical operation requirements of different patients, providing a more personalized support solution for the operation. Whether operating inside a complex joint cavity or responding to the need for distraction at different angles, it can be achieved by conveniently adjusting the angle of the support rod. This flexibility not only improves the convenience and accuracy of surgical operations, but also effectively reduces the risk of tissue damage that may be caused by poor adaptation of instruments and joints, further improves the safety and effectiveness of the operation, and lays a solid foundation for the smooth implementation and good prognosis of shoulder joint surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is an exploded view of the present invention; Figure 3 It is a schematic diagram of the overall structure of the support rod of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the rotary trough of the present invention; Figure 5 It is a schematic cross-sectional view of the left clamp handle of the present invention; Figure 6 It is a side view structural diagram of the right clamp handle of the present invention Figure 7 Is a schematic diagram of the overall structure of the card strip of the present invention; Figure 8 It is a schematic diagram of a usage scenario of the present invention.

[0013] In the figure: 1. left clamp handle; 2. right clamp handle; 3. vertical block; 4. swivel mouth; 5. swivel groove; 6. support rod; 7. swivel column; 8. gear; 9. spring groove; 10. slide plate; 11. wedge block; 12. spring; 13. joint support plate; 14. round cavity; 15. round block; 16. connecting swivel block; 17. bayonet mouth; 18. round mouth; 19. left spring bar; 20. right spring bar; 21. sliding hole; 22. arc groove; 23. clamping bar; 24. swivel hole; 25. cross bar; 26. reset spring ring; 27. cross groove; 29. ​​wedge buckle; 30. spoon-shaped round block; 31. recessed groove. DETAILED DESCRIPTION

[0014] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0015] like Figure 1-8 As shown, a shoulder glenohumeral joint distractor is provided, comprising a left clamp handle 1, a right clamp handle 2 is arranged on the right side of the left clamp handle 1, the top ends of the left clamp handle 1 and the right clamp handle 2 are fixedly connected with a vertical block 3, a turning opening 4 is provided on the upper surface of the vertical block 3, a turning slot 5 is symmetrically provided inside the turning opening 4, a support rod 6 is arranged inside the turning opening 4, a turning column 7 is symmetrically fixedly connected to the outer side wall of the support rod 6, a gear 8 is fixedly connected to the outer side wall of the turning slot 5, an elastic groove 9 is symmetrically provided on the inner side wall of the turning slot 5, a slide plate 10 is slidably connected inside the elastic groove 9, the opposite sides of the slide plate 10 are fixedly connected with a wedge block 11, the opposite ends of the wedge block 11 extend to the inside of the turning slot 5, the opposite grooves of the slide plate 10 are fixedly connected to the inner side wall of the turning slot 5 with a plurality of springs 12, the top ends of the support rod 6 are fixedly connected with a joint support plate 13, and the left clamp handle 1 is rotatably connected to the right clamp handle 2; The left clamp handle 1 and the right clamp handle 2 are connected by rotation, and the opening and closing of the instrument can be controlled. In the initial state, the instrument is completely closed, the vertical block 3 is fixed on the top of the clamp handle, the turn mouth 4 remains closed, and the support rod 6 is in the initial position. The operator holds the left clamp handle 1 and the right clamp handle 2 with both hands and starts to rotate the two clamp handles. At this time, the vertical block 3 is displaced as the clamp handle rotates, the turn slot 5 in the turn mouth 4 begins to open, the support rod 6 expands accordingly, and the instrument gradually opens. A symmetrical turn slot 5 is provided in the turn mouth. As the instrument opens, the support rod 6 inside the turn mouth is pushed and opened. This design ensures that the opening and closing process of the device is smoother and more stable. The rotating column 7 and the gear 8 inside the turn mouth work together. The gear 8 controls the opening amplitude and accuracy of the device by meshing with the rotating column 7, ensuring that the support rod 6 can rotate smoothly. When the two support rods 6 are supported, the left clamp handle 1 and the right clamp handle 2 can be rotated, and it is more convenient for the operating doctor in subsequent work. The multiple springs 12 in the spring slot 9 are connected to the slide plate 10 to provide a restoring force, ensuring that the device can stabilize in the appropriate folding position and prevent position deviation caused by excessive external force. The top of the support rod 6 is fixed with a joint support plate 13. When the device is opened, the two joint support plates 13 are in contact with the glenoid labrum and the humeral head respectively. The advantage of the spoon-shaped opening plate 13 is that it can be well adapted to the shape of the bone, so that the connection is opened, ensuring that the device is stably supported and maintained. The gear 8 and the internal wedge block 11 are engaged and connected so that the left clamp handle 1 and the right clamp handle 2 change their angles under the action of a large external force, so that the support plate 13 is maintained in an ideal position, ensuring that when the device is opened, when there is no external force, the gear 8 is engaged by the internal wedge block 11, and the support plate 13 will not deviate. Once the device is stable and the device maintains the required opening angle, the treatment operation or further treatment can be started. During the treatment process, the device ensures that the operated area is kept in an appropriate state through its stable support capacity, which is convenient for medical staff to perform further treatment. After the treatment is completed, the operator gradually restores the device to a closed state by rotating the left clamp handle 1 and the right clamp handle 2. When the device is completely closed and restored to its minimum state, the operator can easily remove the spreader to end the operation. The operator controls the opening and closing of the left clamp handle 1 and the right clamp handle 2, and after the treatment is completed, the device is restored to a closed state and finally removed.

[0016] In this embodiment, a circular cavity 14 is fixedly connected to the right side of the left vertical block 3, a circular block 15 is fixedly connected to the left side of the right vertical block 3, a connecting rotating block 16 is symmetrically fixedly connected to the outer side wall of the circular block 15, a bayonet 17 is opened on the right side of the circular cavity 14, and a circular opening 18 is opened on the inner side wall of the circular cavity 14, and two connecting rotating blocks 16 are rotatably connected to the adjacent circular openings 18; The vertical block 3 on the left and the vertical block 3 on the right are fixedly connected to form a support structure. A circular cavity 14 is fixedly connected to the right side of the vertical block, and a circular block 15 is fixedly connected to the left side. The circular cavity 14 is connected to the right side of the vertical block 3. The design inside the circular cavity 14 includes a bayonet 17 opened on the right side thereof, which is used to connect and fix with other components. In addition, circular openings 18 are evenly opened on the inner wall of the circular cavity 14, so that it can be connected to the connecting rotating block 16 by rotation. Round block 15: On the left side of the vertical block 3, a circular block 15 is connected. The outer side wall of the circular block is symmetrically fixedly connected to the connecting rotating blocks 16, which are designed to be rotatably connected with the circular opening 18, and each connecting rotating block 16 is rotatably connected with the adjacent circular opening 18, so that the connecting rotating block 16 can be flexibly rotated in the circular opening. This rotational connection facilitates the movement of the adjustment device, so that the left clamp handle 1 and the right clamp handle 2 are connected and rotated together.

[0017] In this embodiment, a left elastic bar 19 is fixedly connected to the right side of the outer wall of the left clamp handle 1, and a right elastic bar 20 is fixedly connected to the left side of the outer wall of the right clamp handle 2. A sliding hole 21 is opened on the right side of the left elastic bar 19, and the sliding hole 21 is slidably connected to the outer wall of the right elastic bar 20. A sliding hole 21 is provided on the right side of the left elastic bar 19, and the sliding hole is designed to allow the outer side wall of the right elastic bar 20 to slide and connect therein. The sliding connection between the sliding hole 21 and the right elastic bar 20 can achieve a certain sliding range during operation, ensuring the relative movement between the elastic bars and the proper transmission of elastic force. This structure provides better elastic control through the mutual cooperation of the left elastic bar 19 and the right elastic bar 20, ensuring that the instrument can be adjusted and operated more smoothly during use, while enhancing the stability of the instrument.

[0018] In this embodiment, an arc-shaped groove 22 is provided on the left side of the outer wall of the right clamp handle 2, a clip strip 23 is provided inside the arc-shaped groove 22, a rotating hole 24 is provided on the right side of the outer wall of the clip strip 23, a cross bar 25 is rotatably connected inside the rotating hole 24, both ends of the cross bar 25 are fixedly connected to the inner wall of the arc-shaped groove 22, a reset spring ring 26 is symmetrically arranged around the outer wall of the cross bar 25, the bottom end of the reset spring ring 26 is fixedly connected to the outer wall of the clip strip 23, and the top end of the reset spring ring 26 is fixedly connected to the inner wall of the arc-shaped groove 22, and a through-type transverse groove 27 is provided on the right side of the left clamp handle 1, and a wedge-shaped buckle 29 is fixedly connected to the inner upper surface of the transverse groove 27; An arc groove 22 is provided on the left side of the outer wall of the right clamp handle 2, and a clamping strip 23 is arranged inside the groove. A rotating hole 24 is provided on the right side of the outer wall of the clamping strip 23, through which the clamping strip 23 is rotatably connected to the cross bar 25. Both ends of the cross bar 25 are fixedly connected to the inner wall of the arc groove 22 to form a supporting effect. A reset spring ring 26 is symmetrically arranged around the outer wall of the cross bar, and the bottom end of the reset spring ring is fixedly connected to the outer wall of the clamping strip 23, and the top end is fixedly connected to the inner wall of the arc groove 22. This structure ensures that the reset spring ring 26 provides a certain elastic force when the cross bar 25 rotates, helping the clamping strip 23 to reset. A through-type transverse groove 27 is provided on the right side of the left clamp handle 1, and a wedge-shaped buckle 29 is fixedly connected to the inner upper surface of the transverse groove. The wedge-shaped buckle 29 is designed to cooperate with other components, and the clamping strip 23 can be connected with the wedge-shaped buckle 29 inside the transverse groove 27 to ensure that the instrument can be firmly fixed in a suitable position during operation. This structural design provides a flexible adjustment function, and at the same time ensures the stability and precise operation of the instrument through the reset spring ring 26. When the instrument needs to be closed, the card strip 23 needs to be pried to disengage the card strip 23 from the wedge-shaped buckle 29. Remember to separate the left clamp handle 1 and the right clamp handle 2 to achieve the closing function of the instrument.

[0019] In this embodiment, the joint support plate 13 includes a spoon-shaped round block 30, and a concave groove 31 is formed on the right side of the spoon-shaped round block 30; The joint support plate 13 includes a spoon-shaped round block 30, which is designed in a spoon shape and is suitable for supporting the joint in the application of the joint spreader. A recessed groove 31 is provided on the right side of the spoon-shaped round block 30. The design of this recessed groove 31 provides additional support and stability for the joint support plate 13, so that it can better fit the shape of the glenoid labrum and the humeral head joint during operation, further improving the support effect. This structural design is intended to provide more stable joint support, ensuring that the joint can be firmly and comfortably fixed during use, thereby avoiding any unnecessary movement or discomfort.

[0020] In this embodiment, the left clamp handle 1, the right clamp handle 2, the vertical block 3, the support rod 6 and the round pad 30 are all made of stainless steel; Stainless steel, as a corrosion-resistant, high-temperature-resistant and high-strength material, is very suitable for use in medical devices, especially in situations where they need to withstand large mechanical forces and frequent operations. Its excellent oxidation resistance and corrosion resistance ensure that these parts can resist the erosion of biological fluids and various disinfectants during long-term use, maintaining the stability and hygienic safety of the equipment.

[0021] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A shoulder glenohumeral joint distractor, comprising a left clamp handle (1), characterized in that: A right clamp handle (2) is arranged on the right side of the left clamp handle (1); the top ends of the left clamp handle (1) and the right clamp handle (2) are fixedly connected to a vertical block (3); the upper surfaces of the vertical blocks (3) are provided with a rotating opening (4); the interior of the rotating opening (4) is symmetrically provided with a rotating groove (5); and the interior of the rotating opening (4) is provided with a support rod (6); The outer wall of the support rod (6) is symmetrically fixedly connected to a rotating column (7) located inside the rotating port (4), and the outer wall of the rotating column (7) is fixedly connected to a gear (8). The inner wall of the rotating groove (5) is symmetrically provided with an elastic groove (9), and a slide plate (10) is slidably connected inside the elastic groove (9). The opposite sides of the slide plate (10) are fixedly connected to a wedge block (11), and the opposite ends of the wedge block (11) extend to the inside of the rotating groove (5). The opposite grooves of the slide plate (10) are fixedly connected to the inner wall of the rotating groove (5) with a plurality of springs (12). The top end of the support rod (6) is fixedly connected to a joint support plate (13), and the left clamp handle (1) is rotatably connected to the right clamp handle (2).

2. The shoulder glenohumeral joint distractor according to claim 1, characterized in that: The right side of the left vertical block (3) is fixedly connected to a circular cavity (14), the left side of the right vertical block (3) is fixedly connected to a circular block (15), the outer side wall of the circular block (15) is symmetrically fixedly connected to a connecting rotating block (16), the right side of the circular cavity (14) is provided with a bayonet (17), the inner side wall of the circular cavity (14) is provided with a circular opening (18), and the two connecting rotating blocks (16) are rotatably connected to the adjacent circular opening (18).

3. The shoulder glenohumeral joint distractor according to claim 1, characterized in that: A left elastic bar (19) is fixedly connected to the right side of the outer wall of the left clamp handle (1), and a right elastic bar (20) is fixedly connected to the left side of the outer wall of the right clamp handle (2). A sliding hole (21) is provided on the right side of the left elastic bar (19), and the sliding hole (21) is slidably connected to the outer wall of the right elastic bar (20).

4. The shoulder glenohumeral joint distractor according to claim 1, characterized in that: An arc-shaped groove (22) is provided on the left side of the outer wall of the right clamp handle (2), a clamping strip (23) is provided inside the arc-shaped groove (22), a rotating hole (24) is provided on the right side of the outer wall of the clamping strip (23), and a cross bar (25) is rotatably connected inside the rotating hole (24).

5. The shoulder glenohumeral joint distractor according to claim 1, characterized in that: Both ends of the cross bar (25) are fixedly connected to the inner wall of the arc groove (22); a reset spring ring (26) is symmetrically arranged around the outer wall of the cross bar (25); the bottom end of the reset spring ring (26) is fixedly connected to the outer wall of the clamping strip (23); the top end of the reset spring ring (26) is fixedly connected to the inner wall of the arc groove (22); a through-type cross groove (27) is opened on the right side of the left clamp handle (1); a wedge-shaped buckle (29) is fixedly connected to the inner upper surface of the cross groove (27); and the clamping strip (2) is slidably connected to the inside of the cross groove (27).

6. The shoulder glenohumeral joint distractor according to claim 1, characterized in that: The joint support plate (13) comprises a spoon-shaped round block (30), and a recessed groove (31) is formed on the right side of the spoon-shaped round block (30).

7. The shoulder glenohumeral joint distractor according to claim 1, characterized in that: The left clamp handle (1), the right clamp handle (2), the vertical block (3), the support rod (6) and the round pad (30) are all made of stainless steel.

Images