Spreader for joint orthopedic surgery

Abstract

The utility model discloses a joint orthopaedic surgery dilator which comprises distraction plates and protection devices, the two distraction plates are sleeved with the protection devices in a connected mode, a rubber sleeve is arranged on the outer wall of a sleeve shell, anti-skid protruding blocks are arranged on the outer wall of the rubber sleeve and the contact face of a joint, and the anti-skid protruding blocks are used for preventing the rubber sleeve from sliding when the rubber sleeve makes contact with soft tissue. The rubber sleeves and the anti-skid protruding blocks are both used for reducing abrasion between the supporting plates and soft tissue, a fixing block is arranged at the left end of the inner wall of the sleeve shell, inserting grooves are formed in the front ends of the two supporting plates, the sleeve shell is inserted into the inserting grooves through the fixing block to be fixedly connected with the supporting plates in a clamped mode, and the rubber sleeves are used for laying between the joint soft tissue and the supporting plates. The rubber sleeve can reduce the friction and damage of the surgical dilator to the skin and soft tissue of a patient, reduce the risk of postoperative complications, increase the stability of the supporting plate and ensure the correct positions of joints and bones in the surgical process.

Description

Technical Field

[0001] The utility model belongs to the technical field related to medical devices, and specifically relates to a joint orthopedic surgery distractor. Background Art

[0002] An orthopedic joint expander is an instrument used to expand the joint during joint surgery to facilitate surgical operations. It is usually made of metal or plastic and has an adjustable size design, so the size of the expansion can be adjusted according to surgical needs. However, when using an orthopedic joint expander, it needs to be inserted into the joint, which may damage the surrounding soft tissues, such as the synovium and ligaments, causing pain and discomfort to the patient. Utility Model Content

[0003] The purpose of the utility model is to provide a joint orthopedic surgical spreader to solve the problem proposed in the above background technology that when using a joint orthopedic surgical spreader, it needs to be inserted into the joint, which may damage the surrounding soft tissues, such as synovium and ligaments, causing pain and discomfort to the patient.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a joint orthopedic surgery spreader, comprising a spreader plate and a protective device;

[0005] The two support plates are connected with protective devices;

[0006] The outer wall of the shell is provided with a rubber sleeve, and the outer wall of the rubber sleeve and the joint contact surface are both provided with anti-skid bumps, the anti-skid bumps are used to prevent the rubber sleeve from sliding when contacting the soft tissue, and the rubber sleeve and the anti-skid bumps are both used to reduce the wear between the support plate and the soft tissue.

[0007] Preferably, a fixing block is provided at the left end of the inner wall of the casing, and slots are provided at the front ends of the two support plates, and the casing is fixed to the support plates by inserting the fixing block into the slots.

[0008] Preferably, two rubber bands are arranged on the right side of the inner wall of the casing, and slots are provided on both the upper and lower sides of the right end of the support plate. After the support plate is inserted into the casing, the rubber bands will be clamped in the slots to prevent the casing from falling off.

[0009] Preferably, the housing and the fixing block are made of an integral medical-grade plastic, and the rubber sleeve, the anti-slip bump and the rubber ribs are all made of medical-grade rubber.

[0010] Preferably, the right ends of the two support plates are respectively connected to the auxiliary handle and the main handle, and the auxiliary handle and the main handle are connected and fixed by a fixed rotating assembly, and the auxiliary handle and the main handle can be opened and closed by the fixed rotating assembly.

[0011] Preferably, a rebound component is fixedly provided between the auxiliary handle and the right inner wall of the main handle by a fixing screw, and the rebound component is used to apply tension between the auxiliary handle and the right closed portion of the main handle.

[0012] Preferably, a gear rod is fixedly provided at the right rear end of the main handle via a rotating shaft, and a clamping block is provided on the inner wall of the opening at the right end of the auxiliary handle, and the clamping block is used to clamp the gear rod.

[0013] Compared with the prior art, the utility model provides a joint orthopedic surgery distractor, which has the following beneficial effects:

[0014] The rubber sleeve is put on the outer wall of the support plate through the sleeve shell. When the support plate is inserted into the sleeve shell, the fixing block is squeezed into the slot by pressure to fix it to prevent the sleeve shell from falling off. The anti-slip protrusions on the contact surface between the outer wall of the rubber sleeve and the joint soft tissue will prevent sliding during expansion. The rubber sleeve is used to pave the space between the joint soft tissue and the support plate. The rubber sleeve can reduce the friction and damage of the surgical expander to the patient's skin and soft tissue, reduce the risk of postoperative complications, and increase the stability of the support plate to ensure the correct position of the joints and bones during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a joint orthopedic surgery distractor.

[0016] Figure 2 This is a schematic diagram of the structure of the protective device of the utility model.

[0017] Figure 3 It is a schematic diagram of the planed surface structure of the front end of the protective device of the utility model.

[0018] In the figure: 1. protective device; 2. support plate; 3. auxiliary handle; 4. fixed rotating assembly; 5. rebound assembly; 6. fixing screw; 7. gear rod; 8. clamping block; 9. rotating shaft; 10. main handle; 11. anti-slip bump; 12. rubber sleeve; 13. sleeve shell; 14. rubber rib; 15. slot; 16. slot; 17. fixing block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-3 A joint orthopedic surgery spreader shown includes a spreader plate 2 and a protective device 1;

[0021] A protective device 1 is provided on the outer surface of the two support plates 2;

[0022] A rubber sleeve 12 is provided on the outer wall of the sleeve shell 13, and anti-skid bumps 11 are provided on the outer wall of the rubber sleeve 12 and the joint contact surface. The anti-skid bumps 11 are used to prevent the rubber sleeve 12 from sliding when contacting the soft tissue. The rubber sleeve 12 and the anti-skid bumps 11 are both used to reduce the wear between the support plate 2 and the soft tissue.

[0023] When the joint is to be stretched, the rubber sleeve 12 is sleeved on the outer wall of the support plate 2 through the sleeve shell 13, and the support plate 2 with the rubber sleeve 12 is inserted into the gap of the joint bone. When the support plate 2 expands and contacts the joint soft tissue, the rubber sleeve 12 reduces the hardness of the support plate 2, thereby preventing the support plate 2 from wearing the joint soft tissue, and the anti-slip protrusions 11 on the outer wall of the rubber sleeve 12 prevent the rubber sleeve 12 from sliding, thereby increasing stability.

[0024] like Figure 2 and Figure 3 As shown, a fixing block 17 is provided at the left end of the inner wall of the shell 13, and slots 16 are provided at the front ends of the two support plates 2. The shell 13 is inserted into the slots 16 and fixed to the support plates 2 through the fixing blocks 17. Two rubber bands 14 are provided on the right side of the inner wall of the shell 13, and slots 15 are provided on the upper and lower sides of the right end of the support plates 2. After the support plates 2 are inserted into the shell 13, the rubber bands 14 will be clamped in the slots 15 to prevent the shell 13 from falling. The shell 13 and the fixing block 17 are made of integrated medical-grade plastic, and the rubber sleeve 12, the anti-slip protrusions 11 and the rubber bands 14 are all made of medical-grade rubber.

[0025] When the support plate 2 is inserted into the casing 13, the two rubber bands 14 at the entrance of the casing 13 are first stretched open to insert the support plate 2 into the casing 13, and the fixing block 17 is squeezed by the pressure of the left insertion, so that the fixing block 17 is squeezed into the slot 16 and fixed to the support plate 2. The casing 13 and the support plate 2 are fixed by inserting the fixing block 17 into the slot 16, and the rubber band 14 clamped in the slot 15 prevents the casing 13 on the outer wall of the support plate 2 from falling off.

[0026] like Figure 1 As shown, the right ends of the two support plates 2 are respectively connected to the auxiliary handle 3 and the main handle 10, and the auxiliary handle 3 and the main handle 10 are connected and fixed by a fixed rotating component 4. The auxiliary handle 3 and the main handle 10 can be opened and closed by the fixed rotating component 4. A rebound component 5 is fixed between the auxiliary handle 3 and the right inner wall of the main handle 10 by a fixing screw 6. The rebound component 5 is used to apply tension between the closed part of the auxiliary handle 3 and the right side of the main handle 10.

[0027] When the auxiliary handle 3 and the main handle 10 fixed by the fixed rotating component 4 are pinched from the right side, the auxiliary handle 3 and the main handle 10 will open and close on the left side with the fixed rotating component 4 as the axis. When the auxiliary handle 3 and the main handle 10 are pinched on the right side, the rebound component 5 will shrink and fit together. When the auxiliary handle 3 and the main handle 10 are released, the rebound component 5 will apply tension to the auxiliary handle 3 and the main handle 10 to rebound.

[0028] like Figure 1 As shown, a gear rod 7 is fixedly provided at the right rear end of the main handle 10 via a rotating shaft 9 , and a clamping block 8 is provided on the inner wall of the opening at the right end of the auxiliary handle 3 , and the clamping block 8 is used to clamp the gear rod 7 .

[0029] When the auxiliary handle 3 and the main handle 10 are pinched, the toothed rod 7 on the rear side of the main handle 10 will move backwards, and the handle clamps and fixes the toothed rod 7 through the clamping block 8. The clamping block 8 can prevent the toothed rod 7 from causing the rebound component 5 to drive the auxiliary handle 3 and the main handle 10 to rebound when the handle is released.

[0030] The working principle of the utility model is as follows: when the support plate 2 is inserted into the sleeve shell 13, the two rubber bands 14 at the entrance of the sleeve shell 13 are first stretched open to insert the support plate 2 into the sleeve shell 13, and the fixing block 17 is squeezed by the pressure of the left insertion, so that the fixing block 17 is squeezed into the slot 16 and fixed to the support plate 2. After the fixing block 17 is inserted into the slot 16, the two rubber bands 14 will rebound according to their own resilience, so as to be clamped in the clamping groove 15 to prevent the sleeve shell 13 from falling off, and the support plate 2 with the rubber sleeve 12 is inserted into the gap of the joint bone, and the support plate 2 is opened by pinching the auxiliary handle 3 and the right side of the main handle 10 to stretch the joint.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A joint orthopedic surgery spreader, comprising a spreader plate (2), a casing (13) and a protective device (1); The two support plates (2) are connected to each other with a protective device (1); Features: The outer wall of the sleeve (13) is provided with a rubber sleeve (12), and the outer wall of the rubber sleeve (12) and the joint contact surface are both provided with anti-skid protrusions (11), and the anti-skid protrusions (11) are used to prevent the rubber sleeve (12) from sliding when contacting the soft tissue, and the rubber sleeve (12) and the anti-skid protrusions (11) are both used to reduce the wear between the support plate (2) and the soft tissue.

2. The orthopedic joint surgery distractor according to claim 1, characterized in that: A fixing block (17) is arranged at the left end of the inner wall of the sleeve (13), and a slot (16) is provided at the front end of the two support plates (2). The sleeve (13) is inserted into the slot (16) through the fixing block (17) and is fixedly connected with the support plate (2).

3. The orthopedic joint surgery distractor according to claim 2, characterized in that: Two rubber bands (14) are arranged on the right side of the inner wall of the casing (13), and the upper and lower sides of the right end of the support plate (2) are provided with clamping grooves (15). After the support plate (2) is inserted into the casing (13), the rubber bands (14) will be clamped in the clamping grooves (15) to prevent the casing (13) from falling off.

4. The orthopedic joint surgery distractor according to claim 3, characterized in that: The sleeve (13) and the fixing block (17) are made of integrated medical-grade plastic, and the rubber sleeve (12), the anti-slip protrusion (11) and the rubber rib (14) are all made of medical-grade rubber.

5. The orthopedic joint surgery distractor according to claim 1, characterized in that: The right ends of the two support plates (2) are respectively connected to the auxiliary handle (3) and the main handle (10); the auxiliary handle (3) and the main handle (10) are connected and fixed via a fixed rotating component (4); and the auxiliary handle (3) and the main handle (10) can be opened and closed via the fixed rotating component (4).

6. The orthopedic joint surgery distractor according to claim 5, characterized in that: A rebound component (5) is fixedly arranged between the auxiliary handle (3) and the right inner wall of the main handle (10) via a fixing screw (6), and the rebound component (5) is used to apply tension between the auxiliary handle (3) and the right closed portion of the main handle (10).

7. The orthopedic joint surgery distractor according to claim 5, characterized in that: A gear rod (7) is fixedly arranged at the right rear end of the main handle (10) via a rotating shaft (9), and a clamping block (8) is arranged on the inner wall of the right end opening of the auxiliary handle (3), and the clamping block (8) is used to clamp the gear rod (7).

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