Operation drag hook convenient to fix

Abstract

The utility model relates to the technical field of medical instruments, in particular to a surgical retractor convenient to fix, which can effectively ensure that the position of a splint is kept fixed, avoid influencing the expanding and supporting effect, conveniently adjust the length according to actual conditions, bring convenience to medical staff and improve the practicability. Comprising a pull rod, a hook body is fixedly arranged at the bottom of the left end of the pull rod, multiple sets of anti-skid particles are evenly arranged on the outer wall of the hook body, an inner thread sleeve is rotationally arranged on a movable sleeve plate, a section of thread is arranged on the outer wall of the pull rod, and two sets of limiting rings fixedly sleeve the outer wall of the pull rod; the right end of the clamping plate is fixedly connected with the left end of the connecting rod, two planes are symmetrically arranged on the outer wall of the lengthened sleeve, the lengthened sleeve is arranged on the pull rod in a sliding and sleeving mode through matching of the guide grooves and the guide studs, butterfly-shaped lock nuts are arranged on the two sets of guide studs in a threaded and sleeving mode, and the inner sides of the two sets of butterfly-shaped lock nuts are pressed on the two planes respectively.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to a surgical hook that is easy to fix. Background Technology

[0002] Urology is a branch of medicine that specializes in the study of the male and female urinary tracts and the male reproductive system. It is a sub-specialty of surgery. The male urinary and reproductive systems are inseparable, while the female urinary tract opens into the vulva. Regardless of gender, the urinary tract and reproductive tract are closely related, and diseases of the two often affect each other. Currently, when performing bladder surgery on patients in clinical practice, the bladder first needs to be cut open, and retractors are used to dilate and expose the field of vision. Existing retractors are mainly composed of retractor arms and hook bodies.

[0003] For example, patent publication number CN203122494U discloses a surgical retractor for urology, including a retractor arm and a hook body. The retractor arm is provided with a groove, and the groove is provided with a clamp corresponding to the hook body. The clamp is provided with a push rod, and the hook body and the clamp are respectively provided with anti-slip points. This surgical retractor facilitates the expansion of the bladder, ensures a wide field of vision for medical staff, and reduces the workload of medical staff.

[0004] The aforementioned patent also has certain drawbacks. During use, since the splint is sliding, the position of the splint can only be fixed by holding the push rod by hand, which makes it difficult to fix the splint properly. The position of the splint is prone to movement, which affects the expansion effect. Moreover, the length of the pull arm is fixed and cannot be adjusted according to the actual situation, which causes inconvenience to medical staff and is not practical enough. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a surgical hook that can effectively ensure the position of the splint remains fixed, avoid affecting the expansion effect, and allows for easy length adjustment according to actual conditions, bringing convenience to medical staff and improving practicality.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a surgical retractor for easy fixation, comprising a retractor, an expansion mechanism, and an extension mechanism. A hook body is fixedly mounted at the bottom left end of the retractor, and multiple sets of anti-slip particles are evenly distributed on the outer wall of the hook body. The expansion mechanism includes a movable sleeve and a clamping plate. An internally threaded sleeve is rotatably mounted on the movable sleeve. A section of thread is provided on the outer wall of the retractor. Two sets of limiting rings are fixedly mounted on the outer wall of the retractor, and the two sets of limiting rings are located at both ends of the thread on the outer wall of the retractor. A connecting rod is fixedly connected to the left end of the movable sleeve. A sliding hole is provided on the clamping plate, and a [missing information - likely a design feature] is provided at the top of the sliding hole. The limiting groove and the guide rail are fixedly provided on the top outer wall of the pull rod. The clamping plate is slidably fitted onto the pull rod through the cooperation of the limiting groove and the guide rail. The right end of the clamping plate is fixedly connected to the left end of the connecting rod. The extension mechanism includes an extended sleeve. Two planes are symmetrically provided on the outer wall of the extended sleeve. Guide grooves are provided on both planes. Two sets of guide studs are symmetrically fixed on the outer wall of the right side of the pull rod. The extended sleeve is slidably fitted onto the pull rod through the cooperation of the guide groove and the guide studs. A butterfly lock nut is screwed onto each of the two sets of guide studs. The inner sides of the two sets of butterfly lock nuts are respectively pressed against the two planes.

[0008] Preferably, the top of the hook body is fixedly provided with a threaded connecting post, and the bottom left side of the pull rod is provided with a threaded mating hole. The hook body is screwed onto the bottom left side of the pull rod through the mating of the threaded connecting post and the threaded mating hole.

[0009] Preferably, an anti-slip handle is fixedly fitted on the outer right side of the extended sleeve.

[0010] Preferably, the outer wall of the internal threaded sleeve is symmetrically fixed with two sets of screw plates.

[0011] Preferably, both sets of butterfly lock nuts have a fastening pad fixedly connected to their inner sides.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, by rotating the internal threaded sleeve, the internal threaded sleeve can drive the movable sleeve plate to move along the pull rod under the threaded engagement. This allows the internal threaded sleeve to drive the clamping plate to slide left and right under the guide rail via the connecting rod. The clamping plate can be used for expansion or clamping. The engagement between the internal threaded sleeve and the thread on the outer wall of the pull rod has a self-locking function. When the internal threaded sleeve does not need to be rotated, the self-locking engagement of the thread can keep the position of the clamping plate stationary, thus fixing the position of the clamping plate. When the length needs to be adjusted, first loosen the butterfly lock nuts on both sides of the extended sleeve, and then slide the extended sleeve to the right to adjust the length. After the length is adjusted, tighten the butterfly lock nuts to fix the position of the extended sleeve. This is convenient for medical personnel to use, effectively ensuring that the position of the clamping plate remains fixed, avoiding affecting the expansion effect, and facilitating the adjustment of the length according to the actual situation, bringing convenience to medical personnel and improving practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the bottom isometric structure of the pull rod in this utility model;

[0015] Figure 3 This is an isometric structural diagram of the hook body in this utility model;

[0016] Figure 4 This is an isometric structural diagram of the expansion support mechanism in this utility model;

[0017] Figure 5 This is a schematic diagram of the left axonometric view of the extended sleeve in this utility model;

[0018] Figure 6 This is an isometric structural schematic diagram of the butterfly lock nut in this utility model;

[0019] The following are labels in the attached diagram: 1. Pull rod; 2. Hook body; 3. Anti-slip pellet; 4. Movable sleeve; 5. Internal threaded sleeve; 6. Limiting ring; 7. Connecting rod; 8. Clamping plate; 9. Extended sleeve; 10. Guide groove; 11. Guide stud; 12. Butterfly lock nut; 13. Threaded connecting post; 14. Anti-slip handle; 15. Tightening plate; 16. Fastening pad; 17. Guide rail. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] Example

[0022] Please see Figures 1-6This utility model discloses a surgical retractor for easy fixation, comprising a retractor 1, a hook body 2 fixedly mounted at the bottom left end of the retractor 1, multiple sets of anti-slip particles 3 evenly distributed on the outer wall of the hook body 2, an internally threaded sleeve 5 rotatably mounted on a movable sleeve 4, a threaded section on the outer wall of the retractor 1, and two sets of limiting rings 6 fixedly mounted on the outer wall of the retractor 1, with the two sets of limiting rings 6 located at both ends of the thread on the outer wall of the retractor 1. A connecting rod 7 is fixedly connected to the left end of the movable sleeve 4, a sliding hole is provided on the clamping plate 8, and a limiting groove is provided at the top of the sliding hole. A guide rail 17 is fixedly installed on the wall. The clamping plate 8 is slidably fitted onto the pull rod 1 through the cooperation of the guide rail 17 with the limiting groove. The right end of the clamping plate 8 is fixedly connected to the left end of the connecting rod 7. Two planes are symmetrically provided on the outer wall of the extended sleeve 9, and guide grooves 10 are provided on both planes. Two sets of guide studs 11 are symmetrically fixed on the outer wall of the right side of the pull rod 1. The extended sleeve 9 is slidably fitted onto the pull rod 1 through the cooperation of the guide grooves 10 and the guide studs 11. A butterfly lock nut 12 is screwed onto each of the two sets of guide studs 11. The inner sides of the butterfly lock nuts 12 are pressed against two planes respectively. In use, by rotating the internal threaded sleeve 5, the internal threaded sleeve 5 can drive the movable sleeve 4 to move along the pull rod 1 under the threaded engagement. This allows the internal threaded sleeve 5 to drive the clamping plate 8 to slide left and right under the guide rail 17 via the connecting rod 7. The clamping plate 8 can be used for expansion or clamping. The engagement between the internal threaded sleeve 5 and the thread on the outer wall of the pull rod 1 has a self-locking function. When it is not necessary to rotate the internal threaded sleeve 5, the self-locking engagement of the threads can keep the position of the clamping plate 8 stationary. This fixes the position of the splint 8. When the length needs to be adjusted, first loosen the butterfly lock nuts 12 on both sides of the extension sleeve 9, then slide the extension sleeve 9 to the right to extend it to the right, thereby adjusting the length. After adjusting the length, tighten the butterfly lock nuts 12 to fix the position of the extension sleeve 9. This makes it convenient for medical staff to use and effectively ensures that the position of the splint remains fixed, avoiding affecting the expansion effect. It also makes it easy to adjust the length according to the actual situation, bringing convenience to medical staff and improving practicality.

[0023] The top of the hook body 2 is fixedly provided with a threaded connecting post 13, and the bottom left side of the pull rod 1 is provided with a threaded mating hole. The hook body 2 is screwed onto the bottom left side of the pull rod 1 through the mating of the threaded connecting post 13 and the threaded mating hole. By setting the threaded connecting post 13 and using the screw-on method, the hook body 2 can be easily disassembled and assembled, replacing the original one-piece structure, thus making it convenient to replace the hook body 2.

[0024] An anti-slip handle 14 is fixedly fitted on the outer right side of the extended sleeve 9; by setting the anti-slip handle 14, it is possible to prevent the hand from slipping when operating the extended sleeve 9.

[0025] Two sets of screw plates 15 are symmetrically fixedly connected on the outer wall of the internal threaded sleeve 5; by setting the screw plates 15, it is easier and more convenient to rotate and adjust the internal threaded sleeve 5.

[0026] Both sets of butterfly lock nuts 12 are fixedly connected to the inner side with fastening pads 16; by setting fastening pads 16, the butterfly lock nuts 12 can be pressed more tightly and reliably with the planes on both sides of the extended sleeve 9, avoiding slippage.

[0027] This utility model discloses a surgical retractor that is easy to fix. Its working principle is as follows: During use, rotating the internal threaded sleeve 5 causes the movable sleeve 4 to move along the pull rod 1, which in turn causes the internal threaded sleeve 5 to move via the connecting rod 7 and the clamping plate 8 to slide left and right under the guidance of the guide rail 17. The clamping plate 8 can be used for expansion or clamping. The engagement between the internal threaded sleeve 5 and the thread on the outer wall of the pull rod 1 has a self-locking function. When the internal threaded sleeve 5 does not need to be rotated, the self-locking engagement of the threads keeps the clamping plate 8 in place, thus fixing its position. When the length needs to be adjusted, first loosen the butterfly lock nuts 12 on both sides of the extension tube 9, then slide the extension tube 9 to the right to extend it, thus adjusting the length. After adjusting the length, tighten the butterfly lock nuts 12 to fix the position of the extension tube 9, making it convenient for medical personnel to use.

[0028] This utility model discloses a surgical retractor that is easy to fix. Its installation, connection, or setting methods are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented. The butterfly lock nut of this utility model's surgical retractor is commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A surgical retractor for easy fixation, comprising a pull rod (1), characterized in that, It also includes expansion and extension mechanisms; A pull rod (1) is provided with a hook (2) fixed at the bottom left end of the pull rod (1), and multiple sets of anti-slip particles (3) are evenly provided on the outer wall of the hook (2); The expansion mechanism includes a movable sleeve (4) and a clamping plate (8). The movable sleeve (4) is rotatably provided with an internal threaded sleeve (5). The outer wall of the pull rod (1) is provided with a thread. Two sets of limiting rings (6) are fixedly sleeved on the outer wall of the pull rod (1), and the two sets of limiting rings (6) are located at both ends of the thread on the outer wall of the pull rod (1). A connecting rod (7) is fixedly connected to the left end of the movable sleeve (4). A sliding hole is provided on the clamping plate (8). A limiting groove is provided at the top of the sliding hole. A guide rail (17) is fixedly provided on the top outer wall of the pull rod (1). The clamping plate (8) is slidably sleeved on the pull rod (1) through the cooperation of the limiting groove and the guide rail (17). The right end of the clamping plate (8) is fixedly connected to the left end of the connecting rod (7). The extension mechanism includes an extended sleeve (9). Two planes are symmetrically arranged on the outer wall of the extended sleeve (9). Guide grooves (10) are provided on both planes. Two sets of guide studs (11) are symmetrically fixed on the outer wall of the right side of the pull rod (1). The extended sleeve (9) is slidably fitted onto the pull rod (1) through the cooperation of the guide grooves (10) and the guide studs (11). A butterfly lock nut (12) is screwed onto each of the two sets of guide studs (11). The inner sides of the two sets of butterfly lock nuts (12) are pressed against the two planes respectively.

2. The surgical retractor for easy fixation as described in claim 1, characterized in that, The top of the hook (2) is fixed with a threaded connecting post (13), and the bottom left side of the pull rod (1) is provided with a threaded mating hole. The hook (2) is screwed onto the bottom left side of the pull rod (1) through the mating of the threaded connecting post (13) and the threaded mating hole.

3. The surgical retractor for easy fixation as described in claim 2, characterized in that, The extended sleeve (9) is fixedly fitted with an anti-slip handle sleeve (14) on the outer right side.

4. The surgical retractor for easy fixation as described in claim 3, characterized in that, The inner threaded sleeve (5) has two sets of screw plates (15) symmetrically fixedly connected on its outer wall.

5. A surgical retractor for easy fixation as described in claim 4, characterized in that, Both sets of butterfly lock nuts (12) have fastening pads (16) fixedly connected to their inner sides.

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