Auxiliary positioning device for anorectal surgical operation

By designing a surgical positioning device for anorectal surgery with mechanical structures and adjustable components, the problems of fatigue and inaccuracy caused by exposure of the buttocks during anorectal surgery have been solved, achieving precise control and stability, and improving surgical efficiency and safety.

CN224179743UActive Publication Date: 2026-05-01QILU HOSPITAL(QINGDAO) CHEELOO COLLEGE OF MEDICINE SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QILU HOSPITAL(QINGDAO) CHEELOO COLLEGE OF MEDICINE SHANDONG UNIV
Filing Date
2025-01-17
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In current anorectal surgeries, the patient's buttocks need to be manually opened and maintained by a nurse or assistant, which is tiring and strenuous, especially for overweight patients. Furthermore, it is difficult to accurately control the position of the elastic band, affecting the efficiency and safety of the surgery.

Method used

A surgical positioning device for anorectal surgery was designed, which adopts a mechanical structure and adjustment components, including an adjustable rectangular support rod, a gear rack and pinion mechanism, and a worm gear mechanism. The precise position and height of the adhesive patch can be adjusted by a motor drive and controller. The connecting strap is designed to be detachable and uses Velcro for easy replacement.

Benefits of technology

It significantly reduces the physical exertion of medical staff, improves surgical efficiency and safety, ensures the stability and accuracy of patient buttock exposure, simplifies the operation process, and improves hygiene.

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Abstract

The utility model relates to the technical field of auxiliary positioning devices, in particular to an anorectal surgery auxiliary positioning device which comprises a base, a first adjusting piece is arranged at the top of the base and comprises a U-shaped fixing plate, a rectangular vertical pipe is arranged at the top of the U-shaped fixing plate, and a rectangular supporting rod capable of being adjusted up and down is arranged in the rectangular vertical pipe. A second adjusting part is arranged on the rectangular supporting rod and comprises a cross rod, a connecting ring is arranged at the bottom of the cross rod and close to the left side, the connecting ring is connected with a connecting belt, and a detachable sticky patch is arranged on the connecting belt. According to the auxiliary positioning device for the anorectal surgical operation, through cooperation of the first adjusting piece and the second adjusting piece, accurate adjustment of the position of the viscous patch is achieved, medical staff can easily adjust the height and the position of the viscous patch through the controller and the fine adjustment piece, and therefore the requirements of different patients and operations are met; by means of the design, the problem that the elastic band is not easy to control is solved, and operation flexibility and fineness are improved.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary positioning device technology, specifically an auxiliary positioning device for anorectal surgery. Background Technology

[0002] During anorectal surgery, patients typically need to maintain a lateral decubitus position to facilitate the procedure. During surgery, a nurse or assistant is required to help open the patient's buttocks to fully expose the anus, providing a good field of vision and operating space for successful surgery. However, this task is very strenuous for the nurse or assistant, especially when the surgery is lengthy. Maintaining the buttocks in a continuously open position without trembling is very difficult, often requiring a change of personnel. Furthermore, for obese patients, manually opening the buttocks and keeping the anus exposed is even more challenging and laborious, further increasing the workload.

[0003] Patent CN219089424U discloses an auxiliary device for exposing anorectal surgery, including a base for fixing to the edge of a hospital bed. A rotatable support rod is vertically mounted on the base, and a horizontal crossbar is horizontally mounted on the top of the support rod. The crossbar has several evenly spaced adjustment holes (I) along its length. The auxiliary device also includes an elastic band, hooks, and adhesive patches. The elastic band has several evenly spaced adjustment holes (II) along its length. The hooks can be hooked onto any one of the adjustment holes (I), and the elastic band can be hung on the hooks through any one of the adjustment holes (II). The adhesive patches are detachably connected to the end of the elastic band. The purpose of this application is to provide an auxiliary device for exposing anorectal surgery that is simple in structure, easy to operate, and can replace manual operation by nurses.

[0004] In practical use, the aforementioned existing technology connects the elastic band to a horizontal bar located above and to the side of the patient via a hook. Simultaneously, an adhesive patch at the lower end of the elastic band is attached to the patient's buttocks. During this process, the elastic band is stretched, and under its elastic force, it can pull and open the patient's buttocks to expose the anus. However, due to the elasticity of the elastic band, its position is difficult to control precisely. Furthermore, the presence of the adjustment hole limits the fineness of adjustment, preventing stepless adjustment, which causes some inconvenience in use. Therefore, we propose an auxiliary positioning device for anorectal surgery. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary positioning device for anorectal surgery to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An auxiliary positioning device for anorectal surgery includes a base. A first adjusting component is provided on the top and near the right side of the base. The first adjusting component includes a U-shaped fixing plate fixedly connected to the top of the base. A rectangular vertical tube is provided on the top of the U-shaped fixing plate. A rectangular support rod that can be adjusted up and down is provided inside the rectangular vertical tube. The rectangular support rod can be adjusted up and down to adjust the height of the adhesive patch. After the adhesive patch is pasted on the patient's buttocks, the rectangular support rod can be moved upward to straighten the connecting band. Continuing to move the rectangular support rod upward can cause the connecting band to move the adhesive patch upward, thereby moving the adhesive patch upward and lifting the patient's buttocks, thus opening the patient's buttocks. The distance of opening can be controlled.

[0008] The rectangular support rod is provided with a second adjusting component, which includes a crossbar. A rectangular movable opening for the crossbar to pass through is provided on the left side and near the top of the rectangular support rod. A connecting ring is provided at the bottom and near the left side of the crossbar. The connecting ring is connected to a connecting strap. The connecting strap is not elastic and is provided with a detachable adhesive patch. The adhesive patch is a disposable item and needs to be replaced after each use.

[0009] The bottom of the crossbar is provided with a rack, and the bottom of the inner wall of the rectangular movable opening is provided with a U-shaped groove. The front and rear sides of the inner wall of the U-shaped groove are rotatably connected to a gear that meshes with the rack. The second adjusting component also includes a fine-tuning component for driving the gear to rotate. The fine-tuning component drives the gear to rotate, thereby causing the gear to drive the rack to move, realizing the left and right displacement of the crossbar, thereby moving the adhesive patch to a suitable position so that the adhesive patch can be pasted on the patient's buttocks.

[0010] Preferably, a motor is provided at the top of the inner wall of the U-shaped fixing plate. The motor is powered by an external power source. The output shaft of the motor passes through the top of the inner wall of the U-shaped fixing plate and is coaxially connected to a lead screw. The rectangular support rod is threaded to the outside of the lead screw. The motor drives the lead screw to rotate, thereby causing the lead screw to move the rectangular support rod up and down. The outside of the rectangular support rod is in contact with the inner wall of the rectangular riser, ensuring that the rectangular riser moves stably up and down when driven by the lead screw.

[0011] Preferably, the top of the inner wall of the U-shaped fixing plate is also provided with a protective cover, the motor is located inside the protective cover, which protects the motor, and the bottom of the protective cover is provided with heat dissipation holes.

[0012] Preferably, a controller is provided on the front side of the rectangular riser, and the motor is electrically connected to the controller through a wire. The controller operates the motor to rotate forward or in reverse. For example, when the motor rotates forward, the lead screw drives the rectangular support rod to move upward, and vice versa, the rectangular support rod moves downward. This makes it easier for medical staff to control the height of the adhesive patch, thereby controlling the distance at which the patient's buttocks are spread apart.

[0013] Preferably, the adhesive patch has a connecting hole on its side and near the top for the connecting strip to pass through, and release paper is adhered to the adhesive surface of the adhesive patch.

[0014] Preferably, a hook-and-loop fastener is provided on the rear side of the connecting strap near the bottom, and a loop fastener is provided on the rear side of the connecting strap near the top of the hook-and-loop fastener. The hook-and-loop fastener passes through the connecting hole and is bonded to the loop fastener, which facilitates medical staff to quickly replace the adhesive patch.

[0015] Preferably, the fine-tuning component includes a U-shaped side plate fixedly connected to the front side of the rectangular support rod. A worm gear is rotatably connected to the front side of the inner wall of the U-shaped side plate near the top. The rear end of the worm gear shaft is coaxially connected to the front end of the gear shaft. The worm gear drives the gear to rotate, thereby causing the gear to drive the rack to move.

[0016] Preferably, a worm gear is rotatably connected between the left and right sides of the inner wall of the U-shaped side plate and near the bottom. The worm gear meshes with a worm wheel for transmission. A handwheel is rotatably connected to the right side of the U-shaped side plate. The shaft of the handwheel is coaxially connected with the shaft of the worm gear, which facilitates medical personnel to drive the worm gear to rotate, causing the worm gear to rotate. Since the worm gear and worm wheel have a self-locking function, it can effectively prevent the crossbar from shifting during use, thereby improving the safety of the surgical procedure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This anorectal surgery auxiliary positioning device replaces the task of nurses or assistants manually opening and keeping the patient's buttocks exposed by mechanical structure, which significantly reduces the physical exertion and heavy labor of medical staff during the operation. It is especially advantageous when dealing with obese patients. The operation of the device can avoid the problem of frequent personnel changes and improve the efficiency of the operation.

[0019] 2. This anorectal surgery auxiliary positioning device, through the cooperation of the first and second adjusting components, achieves precise adjustment of the position of the adhesive patch. Medical staff can easily adjust the height and position of the adhesive patch through the controller and fine-tuning components to meet the needs of different patients and surgeries. This design overcomes the problem of elastic bands being difficult to control and improves the flexibility and precision of operation.

[0020] 3. This anorectal surgery auxiliary positioning device adopts a worm gear mechanism, which effectively prevents the crossbar from moving unexpectedly during the operation, ensuring the stability of the patient's exposed buttocks and thus improving the safety of the operation. This feature is especially important for long-term operations, reducing the risk of intraoperative adjustments caused by device displacement.

[0021] 4. The surgical positioning device for anorectal surgery features a detachable design for both the connecting strap and the adhesive patch. The adhesive patch is disposable, making replacement quick and convenient and improving hygiene. In addition, the Velcro design further simplifies the operation process, making it easy for medical staff to quickly adjust and apply it. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the first adjusting component in this utility model;

[0024] Figure 3 This is one of the partial structural schematic diagrams of this utility model;

[0025] Figure 4 This is the second partial structural schematic diagram of the present utility model;

[0026] Figure 5 This is a schematic diagram of the assembly structure of the crossbar, connecting strip, and adhesive patch in this utility model;

[0027] Figure 6 This is a schematic diagram of the assembly structure of the connecting strip and adhesive patch in this utility model;

[0028] In the diagram: 1. Base; 2. First adjusting component; 20. U-shaped fixing plate; 21. Rectangular riser; 22. Rectangular support rod; 220. Rectangular movable opening; 221. U-shaped groove; 23. Motor; 24. Lead screw; 25. Protective cover; 26. Controller; 3. Second adjusting component; 30. Crossbar; 31. Rack; 32. Connecting ring; 33. Fine-tuning component; 330. U-shaped side plate; 331. Worm gear; 332. Worm; 333. Handwheel; 34. Gear; 4. Connecting belt; 40. Hook and loop fastener; 41. Loose hook and loop fastener; 5. Adhesive patch; 50. Connecting hole; 51. Release paper. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Please see Figures 1-6 This utility model provides a technical solution:

[0032] An auxiliary positioning device for anorectal surgery includes a base 1 with mounting holes. A first adjusting member 2 is located on the top and near the right side of the base 1. The first adjusting member 2 includes a U-shaped fixing plate 20 fixedly connected to the top of the base 1. A rectangular vertical tube 21 is located on the top of the U-shaped fixing plate 20. A rectangular support rod 22 that can be adjusted up and down is located inside the rectangular vertical tube 21. The rectangular support rod 22 can be adjusted up and down to adjust the height of the adhesive patch 5. After the adhesive patch 5 is pasted on the patient's buttocks, the rectangular support rod 22 can be moved upward to straighten the connecting band 4. Continuing to move the rectangular support rod 22 upward can cause the connecting band 4 to move the adhesive patch 5 upward, thereby moving the adhesive patch 5 to move the patient's buttocks upward, thus opening the patient's buttocks. The distance of opening can be controlled.

[0033] The rectangular support rod 22 is provided with a second adjusting component 3, which includes a crossbar 30. A rectangular movable opening 220 for the crossbar 30 to pass through is provided on the left side and near the top of the rectangular support rod 22. A connecting ring 32 is provided at the bottom and near the left side of the crossbar 30. A connecting strap 4 is connected to the connecting ring 32. The top end of the connecting strap 4 is tied to the connecting ring 32. The connecting strap 4 is not elastic. A detachable adhesive patch 5 is provided on the connecting strap 4. The adhesive patch 5 is a disposable item and needs to be replaced after each use.

[0034] The bottom of the crossbar 30 is provided with a rack 31, and the bottom of the inner wall of the rectangular movable opening 220 is provided with a U-shaped groove 221. The front and rear sides of the inner wall of the U-shaped groove 221 are rotatably connected to a gear 34 that meshes with the rack 31. The second adjusting member 3 also includes a fine-tuning member 33 for driving the gear 34 to rotate. The fine-tuning member 33 drives the gear 34 to rotate, thereby causing the gear 34 to drive the rack 31 to move, realizing the left and right displacement of the crossbar 30, thereby moving the adhesive patch 5 to a suitable position so that the adhesive patch 5 can be pasted on the patient's buttocks.

[0035] In this embodiment, a motor 23 is provided at the top of the inner wall of the U-shaped fixing plate 20. The motor 23 is powered by an external power source. The output shaft of the motor 23 passes through the top of the inner wall of the U-shaped fixing plate 20 and is coaxially connected to a lead screw 24. A rectangular support rod 22 is threaded to the outside of the lead screw 24. The motor 23 drives the lead screw 24 to rotate, thereby causing the lead screw 24 to drive the rectangular support rod 22 to move up and down. The outside of the rectangular support rod 22 is in contact with the inner wall of the rectangular riser 21, ensuring that the rectangular riser 21 moves stably up and down when driven by the lead screw 24.

[0036] Specifically, a protective cover 25 is provided on the top of the inner wall of the U-shaped fixing plate 20. The motor 23 is located inside the protective cover 25, which protects the motor 23. Heat dissipation holes are provided at the bottom of the protective cover 25.

[0037] Furthermore, a controller 26 is provided on the front side of the rectangular riser 21. The motor 23 is electrically connected to the controller 26 through a wire. The controller 26 operates the motor 23 to rotate forward or in reverse. For example, when the motor 23 rotates forward, the lead screw 24 drives the rectangular support rod 22 to move upward. Conversely, the rectangular support rod 22 moves downward, which makes it easier for medical staff to control the height of the adhesive patch 5, thereby realizing the control of the distance of the patient's buttocks being spread apart.

[0038] Furthermore, the adhesive patch 5 has a connection hole 50 on its side and near the top for the connecting strip 4 to pass through, and release paper 51 is bonded to the adhesive surface of the adhesive patch 5.

[0039] Furthermore, a hook-and-loop fastener 40 is provided on the rear side of the connecting strap 4 near the bottom, and a loose-fitting hook-and-loop fastener 41 is provided on the rear side of the connecting strap 4 near the top of the hook-and-loop fastener 40. The hook-and-loop fastener 40 passes through the connecting hole 50 and is bonded to the loose-fitting hook-and-loop fastener 41, making it convenient for medical staff to quickly replace the adhesive patch 5.

[0040] Furthermore, the fine-tuning component 33 includes a U-shaped side plate 330 fixedly connected to the front side of the rectangular support rod 22. A worm gear 331 is rotatably connected to the front side of the inner wall of the U-shaped side plate 330 near the top. The rear end of the worm gear 331 shaft is coaxially connected to the front end of the gear 34 shaft. The worm gear 331 drives the gear 34 to rotate, thereby causing the gear 34 to drive the rack 31 to move.

[0041] Furthermore, a worm gear 332 is rotatably connected between the left and right sides of the inner wall of the U-shaped side plate 330 and near the bottom. The worm gear 332 meshes with the worm wheel 331 for transmission. A handwheel 333 is rotatably connected to the right side of the U-shaped side plate 330. The shaft of the handwheel 333 is coaxially connected with the shaft of the worm gear 332, which makes it easy for medical staff to drive the worm gear 332 to rotate, so that the worm gear 332 drives the worm wheel 331 to rotate. Since the worm gear 332 and the worm wheel 331 have a self-locking function, it can effectively prevent the crossbar 30 from shifting during use, thereby improving the safety of the operation.

[0042] In this embodiment, the auxiliary positioning device for anorectal surgery is used by fixing the base 1 of the device to the operating table frame or the ground to ensure stability. If necessary, a power supply is connected to ensure the normal operation of the motor 23. Then, the second adjustment component 3 is operated, and the rotation of the worm gear 332 is adjusted by handwheel 333. The worm gear 332 drives the worm wheel 331 to rotate, which in turn drives the gear 34 to rotate. The gear 34 then moves the rack 31 to adjust the position of the crossbar 30. This adjustment allows medical personnel to position the adhesive patch 5 directly above the predetermined area on the patient's buttocks. Afterwards, the direction of the motor 23 is controlled by the controller 26. The motor 23 drives the lead screw 24, causing the lead screw 24 to move the rectangular support rod 22 downward, thereby adjusting the height of the adhesive patch 5 so that medical personnel can accurately attach the adhesive patch 5 to the patient's buttock area. Then, the release paper 51 is removed, and the adhesive patch is applied to the buttocks. The adhesive patch 5 is attached to the patient's buttocks and secured by the connecting strap 4. The controller 26 controls the rotation direction of the motor 23, which drives the lead screw 24, causing the lead screw 24 to move the rectangular support rod 22 upward. The rectangular support rod 22 can then move the connecting strap 4 to move the adhesive patch 5 upward, thereby moving the adhesive patch 5 upward and opening the patient's buttocks. The distance of opening can be controlled. Next, under safe and stable conditions, anorectal surgery is performed. Medical staff should continuously monitor and adjust the device to change its position or release force at specific moments during the surgery as needed. After the surgery, the adhesive patch 5 is carefully removed, disposable supplies are replaced or disposed of, and the power is turned off. This device overcomes the fatigue and exhaustion of traditional manual surgical methods, significantly improving surgical efficiency and safety, allowing medical staff to better concentrate on other important intraoperative tasks.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A surgical positioning device for anorectal surgery, comprising a base (1), characterized in that: A first adjusting member (2) is provided at the top and near the right side of the base (1). The first adjusting member (2) includes a U-shaped fixing plate (20) fixedly connected to the top of the base (1). A rectangular vertical tube (21) is provided at the top of the U-shaped fixing plate (20). A rectangular support rod (22) that can be adjusted up and down is provided inside the rectangular vertical tube (21). A second adjusting member (3) is provided on the rectangular support rod (22). The second adjusting member (3) includes a crossbar (30). A rectangular movable opening (2) for the crossbar (30) to pass through is provided on the left side and near the top of the rectangular support rod (22). 20), a connecting ring (32) is provided at the bottom of the crossbar (30) and near the left side. The connecting ring (32) is connected to a connecting strip (4). A detachable adhesive patch (5) is provided on the connecting strip (4). A rack (31) is provided at the bottom of the crossbar (30). A U-shaped groove (221) is provided at the bottom of the inner wall of the rectangular movable opening (220). A gear (34) that meshes with the rack (31) is rotatably connected between the front and rear sides of the inner wall of the U-shaped groove (221). The second adjusting member (3) also includes a fine-tuning member (33) for driving the gear (34) to rotate.

2. The anorectal surgery auxiliary positioning device according to claim 1, characterized in that: A motor (23) is provided at the top of the inner wall of the U-shaped fixing plate (20). The output shaft of the motor (23) passes through the top of the inner wall of the U-shaped fixing plate (20) and is coaxially connected to a lead screw (24). The rectangular support rod (22) is threaded to the outside of the lead screw (24). The outside of the rectangular support rod (22) is in contact with the inner wall of the rectangular riser (21).

3. The anorectal surgery auxiliary positioning device according to claim 2, characterized in that: The top of the inner wall of the U-shaped fixing plate (20) is also provided with a protective cover (25), the motor (23) is located inside the protective cover (25), and the bottom of the protective cover (25) is provided with heat dissipation holes.

4. The auxiliary positioning device for an anorectal surgical procedure according to claim 2, characterized in that: A controller (26) is provided on the front side of the rectangular riser (21), and the motor (23) is electrically connected to the controller (26) through a wire.

5. The surgical assisting positioning device according to claim 1, wherein: The adhesive patch (5) has a connecting hole (50) on its side and near the top for the connecting strip (4) to pass through, and release paper (51) is bonded to the adhesive surface of the adhesive patch (5).

6. The anorectal surgery auxiliary positioning device according to claim 5, characterized in that: Hook and loop fastener (40) is provided on the rear side and near the bottom of the connecting strip (4), and hook and loop fastener (41) is provided on the rear side and near the top of the hook and loop fastener (40). The hook and loop fastener (40) passes through the connecting hole (50) and is bonded to the hook and loop fastener (41).

7. The anorectal surgery auxiliary positioning device according to claim 1, characterized in that: The fine-tuning component (33) includes a U-shaped side plate (330) fixedly connected to the front side of the rectangular support rod (22). A worm gear (331) is rotatably connected to the front side of the inner wall of the U-shaped side plate (330) near the top. The rear end of the worm gear (331) shaft is coaxially connected to the front end of the gear (34) shaft.

8. The surgical assisting positioning device according to claim 7, characterized in that: A worm gear (332) is rotatably connected between the left and right sides of the inner wall of the U-shaped side plate (330) and near the bottom. The worm gear (332) meshes with the worm wheel (331) for transmission. A handwheel (333) is rotatably connected to the right side of the U-shaped side plate (330). The shaft of the handwheel (333) is coaxially connected with the shaft of the worm gear (332).

Citation Information

Patent Citations

  • Anorectal operation exposure auxiliary device

    CN219089424U