Shoulder joint surgery positioning device

Abstract

This utility model relates to the field of medical device technology and discloses a shoulder joint surgery positioning device, including a main body with two guide channels. A guide pin is fixedly connected to the lower front end of the main body, and a connecting block is fixedly connected to the bottom of the main body. The connecting block is movably connected to a splicing block via a splicing assembly, and a splicing rod is fixedly connected to the bottom of the splicing block. In this utility model, by setting a first clamping block and a second clamping block at one end of the L-shaped connecting rod, and a bolt controlling the opening and closing of the two, the device is stably fixed to the operating table side rod or bedside support. This effectively avoids shaking caused by muscle fatigue due to prolonged hand-holding of the device by medical staff, ensuring the stability of the positioning device during surgery, ensuring that the subsequent opening position is consistent with the previous one, significantly improving the final surgical outcome, and greatly enhancing the stability and accuracy of the surgical operation. This is a key practical structural design to ensure the smooth progress of surgery.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a shoulder joint surgical positioning device. Background Technology

[0002] In shoulder surgery, precise positioning plays a crucial role in surgical success. During the procedure, the positioning device must ensure accurate placement of procedures such as drilling to guarantee surgical outcomes and minimize trauma to the patient.

[0003] The shoulder joint surgery positioning device disclosed in Chinese Patent Publication No. CN220512883U provides convenience for surgical positioning to a certain extent. However, this device still has limitations in practical use. Its operation still heavily relies on the hand-held operation of medical staff. In long and complex shoulder joint surgeries, medical staff need to maintain the same posture while holding the positioning device for extended periods, which easily leads to muscle fatigue. Once muscle fatigue occurs, hand tremors are inevitable, severely compromising the stability of the positioning device. This is similar to the principle in precision machining where unstable tools significantly reduce the precision of machined parts. In shoulder joint surgery, the tremors of the positioning device can cause deviations between the subsequent opening position and the initially planned position. This deviation is highly likely to affect critical surgical operations such as bone repair and implant placement, negatively impacting the surgical outcome, increasing the risk of surgical failure, and potentially causing additional harm to the patient. Therefore, we propose a shoulder joint surgery positioning device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a shoulder joint surgical positioning device, which solves the above-mentioned problems.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a shoulder joint surgical positioning device, including a main body, two guide channels are opened on the main body, a guide pin is fixedly connected to the lower front end of the main body, a connecting block is fixedly connected to the bottom of the main body, a splicing block is movably snapped onto the connecting block by a splicing assembly, a splicing rod is fixedly connected to the bottom of the splicing block, a connecting rod is provided below the splicing rod, the connecting rod is an L-shaped rod, and a first clamping block is fixedly connected to the end of the connecting rod away from the splicing rod, and a second clamping block is movably connected to the side of the first clamping block away from the connecting rod by bolts.

[0006] Preferably, the splicing assembly includes a linkage block, a spring, a top block, and a slot. The lower wall of the connecting block has two symmetrically formed connecting holes, both of which are L-shaped through holes. A linkage block is movably engaged inside each of the two connecting holes. Both ends of the linkage block extend through the interior of the corresponding connecting hole to the outside of the connecting block. The two linkage blocks are symmetrically arranged. A spring is fixedly connected to the side wall of the two linkage blocks that are close to each other. The end of the spring away from the corresponding linkage block is fixedly connected to the side wall adjacent to the interior of the connecting hole. A top block is fixedly connected to the side wall of the two linkage blocks that are far apart from each other at their vertical ends. A slot is formed on the side wall of the two top blocks that are far apart from each other.

[0007] Preferably, the splicing assembly further includes a connecting groove and a locking block. The upper wall of the splicing block is provided with a connecting groove corresponding to the positions of the two linkage blocks on the connecting block. The two inner side walls of the connecting groove are symmetrically fixedly installed with locking blocks, and the shape and size of the locking blocks are adapted to the inner shape and size of the locking groove.

[0008] Preferably, both top blocks are located below the connecting block, and both top blocks are fan-shaped blocks.

[0009] Preferably, a lead screw is fixedly connected to the upper wall of one end of the connecting rod near the splicing rod, the splicing rod is movably sleeved on the lead screw, the top of the lead screw is connected to the inner wall of the splicing rod through a tension spring, an adjusting ring is threaded onto the lead screw, the adjusting ring is located below the splicing rod, and the upper wall of the adjusting ring is in contact with the lower wall of the splicing rod.

[0010] Preferably, the connecting rod can also be a cylindrical rod. When the connecting rod is a cylindrical rod, a base is fixedly connected to the lower wall of the connecting rod. The base is a disc-shaped block, and several suction cups can be installed on the bottom of the base.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By setting the first clamp and the second clamp at one end of the L-shaped connecting rod, as well as the bolts that control the opening and closing of the two, the equipment is stably fixed on the operating table side rod or bedside bracket. This effectively avoids the shaking caused by muscle fatigue when medical staff hold the equipment for a long time, ensures the stability of the positioning device during the operation, ensures that the subsequent opening position is consistent with the previous one, significantly improves the final surgical effect, and greatly enhances the stability and accuracy of the surgical operation. This is a key practical structural design to ensure the smooth progress of the operation.

[0013] 2. By setting up a splicing assembly consisting of connecting holes, linkage blocks, springs, top blocks, and slots on the connecting blocks, and connecting slots and slots on the splicing blocks, the device achieves the effect of rapid splicing and disassembly. In use, insert the top block from the connecting block into the connecting slot of the splicing block; a series of linkages complete the splicing process. Disassembly is achieved by pressing the linkage block.

[0014] The horizontal end is sufficient. This design allows for rapid assembly of the device before surgery and easy disassembly for storage after surgery, saving time and space and providing convenience for the use and storage of the device before and after surgery.

[0015] 3. By incorporating a lead screw attached to the upper wall of the connecting rod near one end of the splicing rod, a splicing rod fitted onto the lead screw, a tension spring connecting the top of the lead screw to the inner wall of the splicing rod, and an adjusting ring on the lead screw, the height of the main body can be flexibly adjusted according to the actual surgical situation. Medical staff rotate the adjusting ring, causing it to move along the lead screw. Moving it upwards compresses the splicing rod to rise, while moving it downwards lowers the splicing rod under the elastic force of the tension spring. This meets the needs of different surgical scenarios and patient positions, improving the versatility and applicability of the equipment and further enhancing its practicality in actual surgery.

[0016] 4. By incorporating a replaceable cylindrical connecting rod with a suction cup base, the device's application scenarios are further expanded. When it is inconvenient to clamp the operating table rail or bedside support, the device can be used via the connecting rod.

[0017] By flexibly placing it in a suitable position and using suction cups for fixation, the flexibility and adaptability of the equipment are improved, enabling it to better meet the needs of diverse surgical environments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a partial disassembly diagram of the present invention;

[0020] Figure 3 This is a half-sectional view of the connecting block of this utility model;

[0021] Figure 4 This is a half-sectional view of the connecting rod of this utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the connecting rod of this utility model when it is cylindrical.

[0023] In the diagram: 1. Main body; 2. Connecting block; 3. Splicing block; 4. Splicing rod; 5. Connecting rod; 6. First clamping block; 7. Second clamping block; 8. Bolt; 9. Connecting hole; 10. Linkage block; 11. Spring; 12. Top block; 13. Slot; 14. Connecting slot; 15. Clamping block; 16. Lead screw; 17. Adjusting ring; 18. Base; 19. Tension spring. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0025] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Attached Figure 5 The present invention will be further described below.

[0026] A shoulder joint surgical positioning device includes a main body 1 with two guide channels. A guide pin is fixedly connected to the lower front end of the main body 1. In use, a sleeve is passed through the guide channels on the main body 1, and the guide pin on the main body 1 is used to complete the positioning and drilling during shoulder joint repair surgery. The specific operation method can be found in Chinese Patent Publication No. CN220512883U, which describes it in detail. A connecting block 2 is fixedly connected to the bottom of the main body 1. The connecting block 2 is movably connected to the splicing block 3 through a splicing component. A splicing rod 4 is fixedly connected to the bottom of the splicing block 3. A connecting rod 5 is provided below the splicing rod 4. The connecting rod 5 is an L-shaped rod, and a first clamping block 6 is fixedly connected to the end of the connecting rod 5 away from the splicing rod 4. A second clamping block 7 is movably connected to the side of the first clamping block 6 away from the connecting rod 5 through a bolt 8. By rotating the bolt 8, the second clamping block 7 can be controlled to move closer to or away from the side of the first clamping block 6, thereby completing the clamping operation.

[0027] When in use, staff can fix the device to the operating table side bar or bedside bracket using the first clamp 6 and the second clamp 7. This avoids the problem that the medical staff may experience muscle fatigue and shaking due to holding the device for a long time during the operation, which could cause the subsequent opening position to be inconsistent with the previous opening position and affect the final surgical result.

[0028] The splicing assembly includes a linkage block 10, a spring 11, a top block 12, and a slot 13. The lower wall of the connecting block 2 has two symmetrically opened connecting holes 9. Both connecting holes 9 are L-shaped through holes. The linkage block 10 is movably engaged inside the two connecting holes 9. Both ends of the linkage block 10 extend through the interior of the corresponding connecting hole 9 to the outside of the connecting block 2. The two linkage blocks 10 are symmetrically arranged. The side wall of the two linkage blocks 10 that is close to each other is fixedly connected to a spring 11. The end of the spring 11 that is away from the corresponding linkage block 10 is fixedly connected to the side wall adjacent to the interior of the connecting hole 9. The side wall of the vertical ends of the two linkage blocks 10 that is far from each other is fixedly connected to a top block 12. The side wall of the two top blocks 12 that is far from each other is provided with a slot 13.

[0029] The splicing assembly also includes a connecting groove 14 and a locking block 15. The upper wall of the splicing block 3 is provided with a connecting groove 14 corresponding to the position of the two linkage blocks 10 on the connecting block 2. The connecting groove 14 can accommodate both top blocks 12 inside itself. The locking blocks 15 are symmetrically and fixedly installed on the two inner side walls of the connecting groove 14. The shape and size of the locking blocks 15 are adapted to the inner shape and size of the locking groove 13. When the locking blocks 15 correspond to the locking groove 13 on the same side top block 12, the locking blocks 15 can be movably locked inside the locking groove 13.

[0030] In use, medical staff can first insert the two top blocks 12 into the connecting groove 14 from one side of the splicing block 3 using the connecting block 2. As the connecting block 2 moves the two top blocks 12 continuously within the connecting groove 14, the two top blocks 12 are pressed by the two locking blocks 15. At this point, the two linkage blocks 10 will move the two top blocks 12 toward the side that is closer to each other. At this time, the spring 11 will deform under the force. Subsequently, when the position of the locking groove 13 on the top block 12 corresponds to the locking block 15, the two linkage blocks 10 will move the two top blocks 12 toward the side that is farther from each other under the action of the spring force of the spring 11. At this time, the locking block 15 will engage with the inside of the corresponding locking slot 13, thereby connecting the connecting block 2 and the splicing block 3 together. When it is necessary to separate the connecting block 2 and the splicing block 3, the medical staff only need to press the side wall of the horizontal end of the two linkage blocks 10 that is far apart from each other, so that the two linkage blocks 10 move towards the side that is close to each other, thereby separating the locking block 15 from the inside of the locking slot 13. At this time, the connecting block 2 and the splicing block 3 can be separated. Through the splicing component set on the connecting block 2, the device can be quickly assembled during use and can also be quickly disassembled after use, so as to facilitate its storage.

[0031] Both top blocks 12 are located below the connecting block 2, and both top blocks 12 are fan-shaped blocks. Since the top block 12 is a fan-shaped mechanism, its upper arc surface can greatly reduce the frictional resistance encountered by the top block 12 when it moves inside the connecting groove 14, thus facilitating operation.

[0032] A lead screw 16 is fixedly connected to the upper wall of the end of the connecting rod 5 near the splicing rod 4. The splicing rod 4 is movably sleeved on the lead screw 16. The top of the lead screw 16 is connected to the inner wall of the splicing rod 4 through a tension spring 19. An adjusting ring 17 is threaded onto the lead screw 16. The adjusting ring 17 is located below the splicing rod 4, and the upper wall of the adjusting ring 17 is in contact with the lower wall of the splicing rod 4.

[0033] Because the splicing rod 4 and the connecting rod 5 are movably connected to the lead screw 16, and the lead screw 16 is connected to the inner wall of the splicing rod 4 through the tension spring 19, medical staff can adjust the position by rotating the adjusting ring 17 on the lead screw 16. When the adjusting ring 17 moves upward, the splicing rod 4 moves upward under the compression of the adjusting ring 17, and the tension spring 19 deforms under force. When the adjusting ring 17 moves downward on the lead screw 16, the splicing rod 4 loses the compression of the adjusting ring 17 and moves downward under the elastic force of the tension spring 19. Regardless of how the adjusting ring 17 moves on the lead screw 16, the adjusting ring 17 always remains in contact with the splicing rod 4. In this way, medical staff can adjust the height of the main body 1 according to the actual usage situation, thereby ensuring the normal operation of the surgery and improving the practicality of the equipment.

[0034] like Figure 5 As shown, the connecting rod 5 can also be a cylindrical rod. When the connecting rod 5 is a cylindrical rod, a base 18 is fixedly connected to the lower wall of the connecting rod 5. The base 18 is a disc-shaped block, and several suction cups can be installed on the bottom of the base 18.

[0035] When the connecting rod 5 is a cylindrical rod, its bottom is fixedly connected to the base 18. During use, medical staff can use the connecting rod 5 to flexibly place the device in a suitable position, and then use the suction cup at the bottom of the base 18 to stably attach the device to the designated position, thereby assisting in the completion of the surgery and improving the flexibility of the device.

[0036] Working principle:

[0037] When in use, staff can fix the device to the operating table side bar or bedside bracket using the first clamp 6 and the second clamp 7. This avoids the problem that the medical staff may experience muscle fatigue and shaking due to holding the device for a long time during the operation, which could cause the subsequent opening position to be inconsistent with the previous opening position and affect the final surgical result.

[0038] In use, medical staff can first insert the two top blocks 12 into the connecting groove 14 from one side of the splicing block 3 using the connecting block 2. As the connecting block 2 moves the two top blocks 12 continuously within the connecting groove 14, the two top blocks 12 are pressed by the two locking blocks 15. At this point, the two linkage blocks 10 will move the two top blocks 12 toward the side that is closer to each other. At this time, the spring 11 will deform under the force. Subsequently, when the position of the locking groove 13 on the top block 12 corresponds to the locking block 15, the two linkage blocks 10 will move the two top blocks 12 toward the side that is farther from each other under the action of the spring force of the spring 11. At this time, the locking block 15 will engage with the inside of the corresponding locking slot 13, thereby connecting the connecting block 2 and the splicing block 3 together. When it is necessary to separate the connecting block 2 and the splicing block 3, the medical staff only need to press the side wall of the horizontal end of the two linkage blocks 10 that is far apart from each other, so that the two linkage blocks 10 move towards the side that is close to each other, thereby separating the locking block 15 from the inside of the locking slot 13. At this time, the connecting block 2 and the splicing block 3 can be separated. Through the splicing component set on the connecting block 2, the device can be quickly assembled during use and can also be quickly disassembled after use, so as to facilitate its storage.

[0039] Because the splicing rod 4 and the connecting rod 5 are movably connected to the lead screw 16, and the lead screw 16 is connected to the inner wall of the splicing rod 4 through the tension spring 19, medical staff can adjust the position by rotating the adjusting ring 17 on the lead screw 16. When the adjusting ring 17 moves upward, the splicing rod 4 moves upward under the compression of the adjusting ring 17, and the tension spring 19 deforms under force. When the adjusting ring 17 moves downward on the lead screw 16, the splicing rod 4 loses the compression of the adjusting ring 17 and moves downward under the elastic force of the tension spring 19. Regardless of how the adjusting ring 17 moves on the lead screw 16, the adjusting ring 17 always remains in contact with the splicing rod 4. In this way, medical staff can adjust the height of the main body 1 according to the actual usage situation, thereby ensuring the normal operation of the surgery and improving the practicality of the equipment.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A shoulder joint surgical positioning device, comprising a main body (1), wherein two guide channels are provided on the main body (1), and a guide pin is fixedly connected to the lower front end of the main body (1), characterized in that: A connecting block (2) is fixedly connected to the bottom of the main body (1). The connecting block (2) is movably connected to a splicing block (3) through a splicing assembly. A splicing rod (4) is fixedly connected to the bottom of the splicing block (3). A connecting rod (5) is provided below the splicing rod (4). The connecting rod (5) is an L-shaped rod. A first clamping block (6) is fixedly connected to the end of the connecting rod (5) away from the splicing rod (4). A second clamping block (7) is movably connected to the side of the first clamping block (6) away from the connecting rod (5) through a bolt (8).

2. The shoulder joint surgical positioning device according to claim 1, characterized in that: The splicing assembly includes a linkage block (10), a spring (11), a top block (12), and a slot (13). The lower wall of the connecting block (2) has two symmetrically opened connecting holes (9). Both connecting holes (9) are L-shaped through holes. The two connecting holes (9) are movably engaged with the linkage block (10). Both ends of the linkage block (10) extend through the interior of the corresponding connecting hole (9) to the outside of the connecting block (2). The two linkage blocks (10) are symmetrically arranged. The side wall of the two linkage blocks (10) that are close to each other is fixedly connected with a spring (11). The end of the spring (11) away from the corresponding linkage block (10) is fixedly connected to the side wall adjacent to the interior of the connecting hole (9). The side wall of the vertical ends of the two linkage blocks (10) that are far from each other is fixedly connected with a top block (12). The side wall of the two top blocks (12) that are far from each other is provided with a slot (13).

3. The shoulder joint surgical positioning device according to claim 2, characterized in that: The splicing assembly also includes a connecting groove (14) and a locking block (15). The upper wall of the splicing block (3) is provided with a connecting groove (14) corresponding to the position of the two linkage blocks (10) on the connecting block (2). The locking blocks (15) are symmetrically and fixedly installed on the two inner side walls of the connecting groove (14). The shape and size of the locking blocks (15) are adapted to the inner shape and size of the locking groove (13).

4. The shoulder joint surgical positioning device according to claim 2, characterized in that: Both of the top blocks (12) are located below the connecting block (2), and both of the top blocks (12) are fan-shaped blocks.

5. The shoulder joint surgical positioning device according to claim 1, characterized in that: A lead screw (16) is fixedly connected to the upper wall of one end of the connecting rod (5) near the splicing rod (4). The splicing rod (4) is movably sleeved on the lead screw (16). The top of the lead screw (16) is connected to the inner wall of the splicing rod (4) through a tension spring (19). An adjusting ring (17) is threaded onto the lead screw (16). The adjusting ring (17) is located below the splicing rod (4), and the upper wall of the adjusting ring (17) is in contact with the lower wall of the splicing rod (4).

6. The shoulder joint surgical positioning device according to claim 1, characterized in that: The connecting rod (5) can also be a cylindrical rod. When the connecting rod (5) is a cylindrical rod, a base (18) is fixedly connected to the lower wall of the connecting rod (5). The base (18) is a disc-shaped block, and several suction cups can be installed at the bottom of the base (18).

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