High-stability lumbar major muscle automatic retractor device for lumbar lateral anterior surgery

Abstract

The invention provides a high-stability automatic lumbar major muscle retractor device for lumbar lateral anterior surgery, and belongs to the technical field of medical apparatuses and instruments. A connecting rod; the first locking clamping piece is arranged on the circumferential surface of the connecting rod in a sleeving manner; the movable sleeve is arranged on the circumferential surface of the connecting rod in a sleeving manner; according to the high-stability lumbar major muscle automatic drag hook device for the lumbar vertebra lateral anterior approach surgery, through the well-designed structures such as the connecting rod, the first locking clamping piece and the sleeve, the high stability of the device in the surgery process is achieved. Due to the stability, accidental movement in the operation is effectively avoided, the operation risk is reduced, and the safety of the operation is improved. And meanwhile, the automatic adjusting function ensures that the draw hook rod and the draw hook head end can keep proper strength and angle when drawing the lumbar major muscle, so that the smooth operation is further ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a highly stable psoas major automatic retractor device for anterior lumbar spine surgery. Background Art

[0002] Anterior lumbar spine surgery is a surgical method for treating various spinal diseases, such as lumbar spine instability, lumbar fractures, etc. This surgical approach can provide a good exposure field of view and operating space, which helps to reduce the damage to the posterior spinal structures. When performing such surgeries, the use of an automatic retractor device can help surgeons better expose the surgical area and improve the surgical efficiency and safety.

[0003] Currently, in anterior lumbar spine surgery, there are two different soft tissue retractors for protecting important organs around the target intervertebral disc, namely an expandable channel and a retractor. Disadvantages of the channel: 1. It mainly expands in the up and down directions of the intervertebral disc. When the expansion diameter is small, it is inconvenient to operate on the intervertebral disc. When a fusion cage needs to be inserted laterally, true lateral insertion cannot be achieved, and there may be a risk of tilting insertion and squeezing the contralateral nerve root. When the expansion is large, the ventral peritoneum and blood vessels may be damaged during the treatment of the intervertebral disc. 2. The longitudinal expansion of the channel may damage the segmental blood vessels, especially the segmental blood vessels of the fifth lumbar vertebra. Installing the fixing pins of the channel may also damage the segmental blood vessels. 3. The installation of the fixing device on the lateral side of the lumbar spine will be affected. 4. Whether the placement position of the channel is accurate requires multiple fluoroscopic confirmations. Currently, there are two types of retractor devices at home and abroad. The domestic retractor device consists of two retractors, namely an abdominal viscera retractor and a psoas major retractor. Abroad, it is mainly a frame-type automatic retractor device. Currently, both of these two retractors have some disadvantages: The domestic retractor requires two assistants to continuously pull, especially the assistant for the psoas major retractor is very tired, and the position of the retractor is easy to move. The movement of the retractor has a risk of causing tissue and organ damage. The frame-type automatic retractor device has disadvantages such as cumbersome installation, insufficient stability, and high price. Therefore, there is an urgent need in China for a set of psoas major automatic retractor device that is convenient for installation and debugging and has good stability. Summary of the Invention

[0004] The purpose of the present invention is to provide a highly stable psoas major automatic retractor device for anterior lumbar spine surgery, aiming to solve the defects of the two existing retractor devices at home and abroad, that is, the domestic retractor device consists of two retractors, namely an abdominal viscera retractor and a psoas major retractor, and abroad, it is mainly a frame-type automatic retractor device. Currently, both of these two retractors have some disadvantages: The domestic retractor requires two assistants to continuously pull, especially the assistant for the psoas major retractor is very tired, and the position of the retractor is easy to move. The movement of the retractor has a risk of causing tissue and organ damage. The frame-type automatic retractor device has disadvantages such as cumbersome installation, insufficient stability, and high price.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A highly stable psoas major automatic retractor device for anterior lumbar spine surgery, comprising:

[0007] Connecting rod;

[0008] The first locking clip, which is sleeved on the circumferential surface of the connecting rod;

[0009] Moving sleeve, which is sleeved on the circumferential surface of the connecting rod;

[0010] Hook rod, which is arranged on one side of the first locking clip;

[0011] The second locking clip, which is sleeved on the circumferential surface of the hook rod;

[0012] The first locking handle, which is threadedly connected inside the first locking clip and the second locking clip;

[0013] The first locking sleeve, which is sleeved on the circumferential surface of the connecting rod;

[0014] Moving block, which is rotatably connected to the lower side of the first locking sleeve through a rotating shaft, and the moving block contacts the second locking sleeve;

[0015] The second locking sleeve, which is fixedly connected to one side end of the first locking clip and is sleeved on the circumferential surface of the connecting rod.

[0016] As a preferred solution of the present invention, a hook head end is provided at the upper end of the hook rod, a groove is opened at the upper end of the hook rod, the hook head end is located in the groove, a hook pin is threadedly connected to the circumferential surface of the hook rod, and the hook pin fixes the hook head end.

[0017] As a preferred solution of the present invention, a column is provided inside the moving sleeve, and two threaded holes are opened on the circumferential surface of the moving sleeve.

[0018] As a preferred solution of the present invention, a fixed clamping jaw is provided on one side of the column, a fixed rod is fixedly connected inside the fixed clamping jaw, two torsion springs are sleeved on the circumferential surface of the fixed rod, a movable clamping jaw is provided inside the fixed clamping jaw, the movable clamping jaw contacts the two torsion springs, a support block is slidably connected inside the fixed clamping jaw, four springs are fixedly connected to the upper end of the support block, a second locking handle is threadedly connected to the lower end of the movable clamping jaw, hollow grooves are opened at one side ends of the movable clamping jaw and the fixed clamping jaw, and the column penetrates through the hollow grooves.

[0019] As a preferred embodiment of the present invention, an adjustable clamping space is formed between the movable clamping jaw and the fixed clamping jaw, and the clamping space is used to fix the square metal bar on one side of the operating table with different thicknesses.

[0020] As a preferred embodiment of the present invention, both the first locking handle and the second locking handle are designed with anti-slip features, and anti-slip patterns are provided on their surfaces to provide better operating feel and locking effect during the operation.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The high-stability psoas major automatic retractor device for anterior lumbar spine surgery realizes high stability of the device during the operation through the carefully designed connecting rod, first locking clip and sleeve and other structures. This stability not only effectively avoids accidental movement during the operation, but also reduces the surgical risk and improves the surgical safety. At the same time, the automatic adjustment function ensures that the retractor rod can maintain appropriate force and angle when retracting the psoas major muscle, further ensuring the smooth progress of the operation.

[0023] 2. The easy-to-operate design of the device enables doctors to quickly and accurately complete the installation, adjustment and locking operations of the device during the operation. This not only reduces the surgical preparation time, but also improves the surgical efficiency. In addition, the anti-slip design and simple operation process of the device enable doctors to focus more on the operation itself during the operation, without having to pay too much attention to the operation of the device, thus enhancing the convenience and smoothness of the operation.

[0024] 3. Through the adjustable clamping space and flexible retractor rod design, the strong adaptability of the device is realized. Regardless of the thickness of the tissue or instrument, the device can provide stable support and traction force. At the same time, the versatility of the device has been significantly improved, and it can be applied to a variety of anterior lumbar spine surgeries, providing doctors with more flexible and diverse surgical options. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0026] Figure 1 is the front perspective view of the present invention;

[0027] Figure 2 is the sectional perspective view of the present invention;

[0028] Figure 3 is in the present invention Figure 2 partial enlarged view of part A;

[0029] Figure 4 Cross-sectional view of the fixed jaw in the present invention;

[0030] Figure 5 Exploded view of the fixed jaw in the present invention.

[0031] In the figure: 1, moving sleeve; 2, connecting rod; 301, first locking clip; 302, second locking clip; 303, first locking handle; 304, first locking sleeve; 305, movable block; 306, second locking sleeve; 401, hook rod; 402, head end of the hook; 403, hook pin; 5, column; 601, fixed jaw; 602, movable jaw; 603, hollow groove; 604, fixed rod; 605, torsion spring; 606, support block; 607, spring; 608, second locking handle. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] Please refer to Figures 1 - 5 , the present invention provides the following technical solutions:

[0035] A highly stable iliopsoas automatic retractor device for anterior lumbar spine surgery, comprising:

[0036] Connecting rod 2;

[0037] First locking clip 301, the first locking clip 301 is sleeved on the circumferential surface of the connecting rod 2;

[0038] Moving sleeve 1, the moving sleeve 1 is sleeved on the circumferential surface of the connecting rod 2;

[0039] Hook rod 401, the hook rod 401 is arranged on one side of the first locking clip 301;

[0040] Second locking clip 302, the second locking clip 302 is sleeved on the circumferential surface of the hook rod 401;

[0041] First locking handle 303, the first locking handle 303 is threadedly connected inside the first locking clip 301 and the second locking clip 302;

[0042] First locking sleeve 304, the first locking sleeve 304 is sleeved on the circumferential surface of the connecting rod 2;

[0043] The movable block 305 is rotationally connected to the lower side of the first locking sleeve 304 through a rotating shaft, and the movable block 305 contacts the second locking sleeve 306;

[0044] The second locking sleeve 306 is fixedly connected to one side end of the first locking clip 301, and the second locking sleeve 306 is sleeved on the circumferential surface of the connecting rod 2;

[0045] The upper end of the hook rod 401 is provided with a hook head end 402. A groove is opened at the upper end of the hook rod 401, and the hook head end 402 is located in the groove. A hook pin 403 is threadedly connected to the circumferential surface of the hook rod 401, and the hook pin 403 fixes the hook head end 402;

[0046] A column 5 is arranged in the moving sleeve 1, and two threaded holes are opened on the circumferential surface of the moving sleeve 1;

[0047] One side of the column 5 is provided with a fixed jaw 601. A fixed rod 604 is fixedly connected inside the fixed jaw 601. Two torsion springs 605 are sleeved on the circumferential surface of the fixed rod 604. An active jaw 602 is arranged inside the fixed jaw 601. The active jaw 602 contacts the two torsion springs 605. A support block 606 is slidably connected inside the fixed jaw 601. Four springs 607 are fixedly connected to the upper end of the support block 606. The lower end of the active jaw 602 is threadedly connected to a second locking handle 608. Hollow grooves 603 are opened at one side end of both the active jaw 602 and the fixed jaw 601, and the column 5 passes through the hollow grooves 603.

[0048] In a specific embodiment of the present invention, the connecting rod 2 serves as the backbone of the entire device and provides a stable supporting structure. The first locking clip 301 can slide along the connecting rod 2 to preliminarily fix the position of the device. The movable sleeve 1 provides additional support and stability. The second locking clip 302 is used to fix the position of the hook rod 401. The hook rod 401 can slide in the second locking clip 302. The first locking handle 303 is used to fix the position of the first locking clip 301 and the second locking clip 302 to achieve a locking function. The textures of the first locking sleeve 304 and the second locking sleeve 306 match each other to provide additional locking force. The second locking clip 302 is locked with the first locking sleeve 304 to increase additional stability and prevent self-rotation. The movable block 305 is fixed to the bottom of the first locking sleeve 304 through a rotating shaft and can rotate. The other end of the movable block 305 hooks the second locking sleeve 306 for direct fixation of the two. The hook rod 401 is used to pull and fix the hook head end 402, and the hook head end 402 is used to directly hook the psoas major muscle. The hook head end 402 is located in the groove of the hook rod 401, which increases the stability and traction of the hook head end 402. The hook pin 403 fixes the hook head end 402 to ensure that the hook head end 402 is in the surgical process. The middle hook head end 402 will not fall off or shift, the fixed clamping jaw 601 ensures additional support for the column 5, the threaded holes on the surface of the movable sleeve 1 are convenient for adjusting the caliber of the movable sleeve 1, and the installation is convenient and stable. The fixed clamping jaw 601 is used in conjunction with the movable clamping jaw 602, and the movable clamping jaw 602 is kept active by the fixed rod 604. The elastic force of the torsion spring 605 pushes the movable clamping jaw 602 outward, and the second locking handle 608 can adjust the force of the movable clamping jaw 602 to expand outward, which is convenient for adjustment. When the second locking handle 608 moves up, it contacts the support block 606, and the four springs 607 are squeezed. After the support block 606 rises, the two After the hollow groove 603 is flush, the column 5 can be locked after passing through the hollow groove 603, and the support block 606 can be fixed after contacting the column 5. The design of each component makes the adjustment and locking operation of the device simple and quick, and it is suitable for a variety of lumbar lateral anterior surgeries, with good versatility. The multiple fixation and support designs ensure stability and safety during the operation, and accurately adjust the traction force of the psoas major muscle. It has the advantages of simple operation, strong applicability, high safety and flexible connection, which significantly improves the safety and efficiency of the operation. In this device, two groups of movable sleeve 1, column 5, fixed clamping claw 601 to second locking handle 608 are provided.

[0049] For details, please refer to Figures 1 - 5 An adjustable clamping space is formed between the movable clamping jaw 602 and the fixed clamping jaw 601, and the clamping space is used to fix the square metal strips on one side of the operating table with different thicknesses.

[0050] In this embodiment, an adjustable clamping space is formed between the movable jaw 602 and the fixed jaw 601. This clamping space is designed to fix the square metal bar on one side of the operating table with different thicknesses. By rotating the second locking handle 608, the width of the clamping space can be adjusted to adapt to the thickness of the square metal bar of different operating tables.

[0051] Specifically, please refer to Figures 1 - 5 , both the first locking handle 303 and the second locking handle 608 adopt anti-slip designs, and anti-slip patterns are provided on their surfaces to provide better operating feel and locking effect during the operation.

[0052] In this embodiment, uneven patterns are machined on the surfaces of the first locking handle 303 and the second locking handle 608 to increase the friction between the hand and the handle. During the operation, the doctor needs to frequently adjust and lock the device. Through the anti-slip design, even when the hand is wet or wearing gloves, the doctor can stably hold and operate the handle to achieve precise adjustment.

[0053] The working principle and use process of the present invention are as follows: first, the fixed clamping jaw 601 and the movable clamping jaw 602 are assembled, and the movable clamping jaw 602 is expanded outward by adjusting the second locking handle 608, and the two columns 5 and the fixed clamping jaw 601 are installed on one side of the operating bed. The two movable sleeves 1 are installed on the two columns 5, and the two movable sleeves 1 are installed on the operating bed. The connecting rod 2 is inserted into the movable sleeve 1 to support the entire retraction device and limit the left and right movement of the connecting rod 2. The hook rod 401 is adjusted to an appropriate position and locked by the second locking clip 302 and the first locking handle 303. The first locking sleeve 304 matches the texture of the first locking clip 301 to provide additional stabilizing force. The movable block 305 is adjusted by the rotating shaft to ensure the stability and angle adaptability of the device during the operation. The hook rod 401 is adjusted to an appropriate position to ensure that the hook head end 402 is located in the groove and is fixed by the hook pin 403. The column 5 is fixed by The fixed jaw 601 and the movable jaw 602 realize additional fixing and supporting functions, the torsion spring 605 provides elastic force, so that the movable jaw 602 can be flexibly moved and fixed at different positions, the support block 606 and the spring 607 enhance the stability and clamping force of the jaw, the second locking handle 608 is used to adjust the position of the movable jaw 602 to achieve precise fixation, the hollow groove 603 allows the column 5 to pass through, ensuring the overall movement and positioning of the jaw assembly, by rotating the second locking handle 608, the movable jaw 602 moves relative to the fixed jaw 601 under the action of the torsion spring 605, thereby adjusting the width of the clamping space, the support block 606 and the spring 607 provide stable supporting force to ensure the firmness of the clamping, the column 5 passes through the hollow groove 603 to ensure the overall movement and positioning accuracy of the jaw assembly, improves operational safety, enhances operational feel, adapts to different surgical environments, reduces operation time and improves doctor satisfaction, and further optimizes the surgical experience and effect.

[0054] Finally, it should be noted that the above description 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 replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-stability psoas major automatic retractor device for anterior lateral lumbar spine surgery, characterized in that: Comprising: Connecting rod (2); First locking clip (301), the first locking clip (301) is sleeved on the circumferential surface of the connecting rod (2); Moving sleeve (1), the moving sleeve (1) is sleeved on the circumferential surface of the connecting rod (2); Hook rod (401), the hook rod (401) is arranged on one side of the first locking clip (301); Second locking clip (302), the second locking clip (302) is sleeved on the circumferential surface of the hook rod (401); First locking handle (303), the first locking handle (303) is threadedly connected inside the first locking clip (301) and the second locking clip (302); First locking sleeve (304), the first locking sleeve (304) is sleeved on the circumferential surface of the connecting rod (2); Movable block (305), the movable block (305) is rotationally connected to the lower side of the first locking sleeve (304) through a rotating shaft, and the movable block (305) contacts the second locking sleeve (306); Second locking sleeve (306), the second locking sleeve (306) is fixedly connected to one side end of the first locking clip (301), and the second locking sleeve (306) is sleeved on the circumferential surface of the connecting rod (2).

2. The highly stable psoas major muscle automatic retractor device for anterior lumbar surgery according to claim 1, characterized in that: The upper end of the hook rod (401) is provided with a hook head end (402), a groove is opened at the upper end of the hook rod (401), the hook head end (402) is located in the groove, and a hook pin (403) is threadedly connected to the circumferential surface of the hook rod (401), and the hook pin (403) fixes the hook head end (402).

3. The highly stable psoas major automatic retractor device for anterior lumbar surgery according to claim 2, characterized in that: A column (5) is arranged inside the moving sleeve (1), and two threaded holes are opened on the circumferential surface of the moving sleeve (1).

4. The highly stable psoas major muscle automatic retractor device for anterior lumbar spine surgery according to claim 3, characterized in that: One side of the column (5) is provided with a fixed clamping jaw (601), a fixed rod (604) is fixedly connected inside the fixed clamping jaw (601), two torsion springs (605) are sleeved on the circumferential surface of the fixed rod (604), a movable clamping jaw (602) is arranged inside the fixed clamping jaw (601), the movable clamping jaw (602) contacts the two torsion springs (605), a support block (606) is slidably connected inside the fixed clamping jaw (601), four springs (607) are fixedly connected to the upper end of the support block (606), a second locking handle (608) is threadedly connected to the lower end of the movable clamping jaw (602), hollow grooves (603) are opened at one side end of the movable clamping jaw (602) and the fixed clamping jaw (601), and the column (5) penetrates through the hollow grooves (603).

5. The highly stable psoas major muscle automatic retractor device for anterior lumbar surgery according to claim 4, characterized in that: An adjustable clamping space is formed between the movable clamping jaw (602) and the fixed clamping jaw (601), and the clamping space is used to fix a square metal strip on one side of an operating bed with different thicknesses.

6. The highly stable psoas major muscle automatic retractor device for anterior lumbar spine surgery according to claim 5, characterized in that: Both the first locking handle (303) and the second locking handle (608) adopt an anti-slip design, and anti-slip patterns are provided on their surfaces to provide better operation feel and locking effect during the operation.

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