Adjustable positioning laparoscopic channel

Abstract

The utility model belongs to the technical field of laparoscope channel, concretely is adjustable positioning laparoscope channel, including sleeve one, the inside slide of pipe one is installed with sleeve two, the top fixedly connected with connecting head of sleeve two, the surface fixedly opened with notch one of connecting head, the inside of sleeve two is equipped with vertical groove, the inside slide of notch one is installed with sliding block, one side of sliding block is fixedly connected with connecting rod, the bottom fixedly connected with connecting shaft no. The fixed seat is embedded annular magnet, and the magnetic head forms the magnetic attraction structure, the magnetic head can enhance the adhesion of positioning ring one and sleeve one by lifting annular magnet, prevents the displacement of positioning ring one in the operation, and the magnetic head is separated from annular magnet by winding silk thread, so that positioning ring one slides down through square bar, and the range of sleeve one is removed, so that positioning ring one can form positioning effect, avoids with the insertion and extraction of surgical instruments of doctor, and the channel itself (trocar) is also taken out of the body.

Description

Technical Field

[0001] This utility model belongs to the field of laparoscopic channel technology, specifically relating to an adjustable positioning laparoscopic channel. Background Technology

[0002] Laparoscopic surgery is widely used due to its advantages such as minimal trauma and rapid recovery. Its core operation relies on the surgical channel established by a trocar.

[0003] Patients vary in weight and the thickness of their abdominal fat and muscle layers, so the trocar needs to be adjusted to different lengths to accommodate patients of different body types.

[0004] The existing trocars are not adjustable in length, which cannot adapt to the needs of different body positions or surgical depths. Frequent cannula replacements are required, which increases the surgical risk. In addition, the trocars do not have a fixing mechanism. As the doctor inserts and removes surgical instruments, the channel itself (trocar) can easily be pulled out of the body. In this case, the trocar needs to be reinserted, causing secondary damage. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model proposes a laparoscopic channel that integrates adjustable length and positioning.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable positioning laparoscopic channel, including a cannula one, a cannula two slidably installed inside the cannula one, a connector fixedly connected to the top end of the cannula two, a groove one fixedly opened on the surface of the connector, a vertical groove one opened inside the cannula two, a slider slidably installed inside the groove one, a connecting rod fixedly connected to one side of the slider, a connecting shaft one fixedly connected to the bottom end of the connecting rod, an L-shaped rod rotatably installed on the surface of the connecting shaft one, a connecting shaft two fixedly connected inside the cannula two, and the connecting shaft two movably connected to the L-shaped rod. The sleeve has a round hole inside and a square hole on its surface. A square rod is slidably installed inside the square hole. A fixing seat is fixedly connected to the top of the square rod. A ring magnet is embedded inside the fixing seat. A magnetic block is embedded on the lower surface of the fixing seat. A magnetic block is embedded on the inner surface of the sleeve. A groove is formed on the surface of the connector. A rotating shaft is inserted into the groove. Thread is wound around the surface of the rotating shaft. A magnetic head is fixedly connected to the bottom end of the thread. A hexagonal head is fixedly connected to one end of the rotating shaft. A hexagonal groove is formed on the surface of the connector. A positioning ring is fixedly connected to the bottom end of the square rod.

[0007] Preferably, the connecting rod is located inside the vertical groove.

[0008] Preferably, the circular holes are distributed in a vertical linear array.

[0009] Preferably, the positions of magnetic block one and magnetic block two are vertically corresponding.

[0010] Preferably, the connector has a groove inside, through which the wire passes, and the magnetic force of the magnetic head is greater than that of magnetic block one and magnetic block two.

[0011] Preferably, a spring is fixedly connected to the lower surface of the slider.

[0012] Preferably, a positioning ring is fixedly connected to the surface of the second sleeve.

[0013] Preferably, a protective film is fixedly connected to the outer surface of the sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This adjustable positioning laparoscopic channel employs a sliding nested design with cannula one and cannula two. Cannula two slides vertically along the inner wall of cannula one, adapting to different body shapes and surgical depth requirements. Linear array of circular holes are formed on the inner surface of cannula one. The tip of an L-shaped rod, by engaging with these holes, positions cannula two. Pushing down the slider via a connecting rod causes the L-shaped rod to swing around the connecting shaft two, facilitating the disengagement of the L-shaped rod tip from the circular holes. This allows for easy extension and retraction of cannula two. A ring magnet is embedded in the fixing base, forming a magnetic attraction structure with the magnetic head. The magnetic head enhances the fit between the positioning ring and the cannula by lifting the annular magnet, preventing the positioning ring from shifting during the operation. The winding silk helps to pull the magnetic head away from the annular magnet, allowing the positioning ring to slide down the square rod. This supports the protective membrane, causing it to bulge outward and move out of the cannula's range but still remain within the protective membrane. Thus, the positioning ring provides a positioning function, preventing the trocar itself from being pulled out of the body as the surgeon inserts and removes surgical instruments. The protective membrane also helps prevent the positioning ring from falling into the patient's abdominal cavity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:

[0016] Figure 1 This is a complete structural schematic diagram of the present invention; Figure 2 This is the cross-sectional structure of the present invention. Figure 1 ; Figure 3 This is the cross-sectional structure of the present invention. Figure 2 ; Figure 4 This is the cross-sectional structure of the present invention. Figure 3 ; Figure 5 This utility model Figure 2 Enlarged view of point A in the middle; Figure 6 This utility model Figure 2 Enlarged view at point B in the middle; Figure 7 This is an enlarged view of section C in part 4 of this utility model.

[0017] In the diagram: 1. Sleeve 1; 2. Sleeve 2; 3. Connector; 4. Groove 1; 5. Vertical groove; 6. Slider; 7. Connecting rod; 8. Connecting shaft 1; 9. L-shaped rod; 10. Connecting shaft 2; 11. Round hole; 12. Square hole; 13. Square rod; 14. Fixing base; 15. Ring magnet; 16. Magnetic block 1; 17. Magnetic block 2; 18. Groove 2; 19. Rotating shaft; 20. Wire; 21. Magnetic head; 22. Hexagonal head; 23. Hexagonal groove; 24. Positioning ring 1; 25. Wire groove; 26. Spring; 27. Positioning ring 2; 28. Protective film. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-7This utility model provides the following technical solution: an adjustable positioning laparoscopic channel, including a cannula 1, a second cannula 2 slidably installed inside the cannula 1, a connector 3 fixedly connected to the top of the second cannula 2, a groove 4 fixedly opened on the surface of the connector 3, a vertical groove 5 opened inside the second cannula 2, a slider 6 slidably installed inside the groove 4, a connecting rod 7 fixedly connected to one side of the slider 6, a connecting shaft 8 fixedly connected to the bottom end of the connecting rod 7, an L-shaped rod 9 rotatably installed on the surface of the connecting shaft 8, a connecting shaft 10 fixedly connected inside the second cannula 2, the connecting shaft 10 being movably connected to the L-shaped rod 9, a round hole 11 opened inside the first cannula, and the cannula... A square hole 12 is provided on the surface of sleeve 1. A square rod 13 is slidably installed inside the square hole 12. A fixed base 14 is fixedly connected to the top of the square rod 13. A ring magnet 15 is embedded inside the fixed base 14. A magnetic block 16 is embedded on the lower surface of the fixed base 14. A magnetic block 17 is embedded on the inner surface of sleeve 1. A slot 18 is provided on the surface of connector 3. A rotating shaft 19 is inserted into the slot 18. A wire 20 is wound on the surface of the rotating shaft 19. A magnetic head 21 is fixedly connected to the bottom end of the wire 20. A hexagonal head 22 is fixedly connected to one end of the rotating shaft 19. A hexagonal groove 23 is provided on the surface of connector 3. A positioning ring 24 is fixedly connected to the bottom end of the square rod 13.

[0020] In this embodiment, by employing a sliding nesting design of cannula 1 and cannula 2, cannula 2 slides vertically along the inner wall of cannula 1, adapting to different body shapes and surgical depth requirements. Linear array of circular holes 11 are formed on the inner surface of cannula 1. The top of the L-shaped rod 9 can be positioned by inserting into the circular holes 11. Pushing down the slider 6 via the connecting rod 7 can cause the L-shaped rod 9 to swing around the connecting shaft 2 10, facilitating the disengagement of the top of the L-shaped rod 9 from the circular holes 11. This allows the sliding cannula 2 to extend and retract easily. A ring magnet 15 is embedded in the fixing seat 14, forming a magnetic attraction structure with the magnetic head 21. Lifting the annular magnet 15 enhances the fit between the positioning ring 24 and the cannula 1, preventing the positioning ring 24 from shifting during the operation. The winding silk thread 20 helps to pull the magnetic head 21 away from the annular magnet 15, allowing the positioning ring 24 to slide down through the square rod 13. This supports the protective membrane 28, causing it to bulge outward and move out of the range of the cannula 1, but still within the protective membrane 28. Thus, the positioning ring 24 can provide a positioning function, preventing the trocar itself from being pulled out of the body as the doctor inserts and removes surgical instruments. The protective membrane 28 also helps to prevent the positioning ring 24 from falling into the patient's abdominal cavity.

[0021] Specifically, the connecting rod 7 is located inside the vertical groove 5, so that the vertical sliding of the slider 6 is conducive to driving the connecting rod 7 to move synchronously.

[0022] Specifically, the circular holes 11 are arranged in a vertical linear array, which is beneficial for positioning the sleeve 2 at different lengths.

[0023] Specifically, the positions of magnetic block 16 and magnetic block 27 are vertically aligned. The mutual attraction between magnetic block 16 and magnetic block 27 helps to improve the stability of positioning ring 24 in the human body.

[0024] Specifically, the connector 3 has a wire groove 25 inside, through which the wire 20 passes. The magnetic force of the magnetic head 21 is greater than that of the first magnetic block 16 and the second magnetic block 17. The wire 20 can be released to facilitate the magnetic head 21 to approach the annular magnet 15 and attract it. When the wire 20 is retracted, the magnetic head 21 drives the annular magnet 15, the square rod 13 and the positioning ring 24 to move upward and reset, which can separate the first magnetic block 16 and the second magnetic block 17.

[0025] Specifically, a spring 26 is fixedly connected to the lower surface of the slider 6. The spring 26 helps to push the slider 6 to reset, which in turn helps the angle of the L-shaped rod 9 to automatically return to its original position and be inserted into the round hole 11.

[0026] Specifically, a positioning ring 27 is fixedly connected to the surface of sleeve 2, which helps to form a positioning function outside the human body.

[0027] Specifically, a protective film 28 is fixedly connected to the outer surface of the cannula 1. The protective film 28 can play an isolation role to prevent the positioning ring 24 from falling off and remaining in the patient's body.

[0028] The working principle or usage process of this utility model is as follows: When in use, pushing down the slider 6 drives the connecting rod 7, causing the L-shaped rod 9 to swing around the connecting shaft 10, thus disengaging the top of the L-shaped rod 9 from the circular hole 11. This facilitates the extension and retraction of the sliding sleeve 2. By allowing the sleeve 2 to slide vertically along the inner wall of the sleeve 1, the required length can be achieved, adapting to different patient sizes and surgical depth requirements. A linear array of circular holes 11 is formed on the inner surface of the sleeve 1. After releasing the slider 6, the spring 26 pushes the slider 6 back to its original position, which helps the angle of the L-shaped rod 9 to automatically return to its original position. The top of the L-shaped rod 9, by engaging the circular hole 11, positions the sleeve 2. The fixing seat 14 has an embedded annular magnet 15, which connects with the magnetic head 2. 1. A magnetic attraction structure is formed. The magnetic head 21 can enhance the fit between the positioning ring 24 and the cannula 1 by lifting the annular magnet 15, preventing the positioning ring 24 from shifting during the operation. By moving the hexagonal head 22 out of the hexagonal groove 23 (the hexagonal groove 23 limits the hexagonal head 22 to prevent it from rotating on its own), rotating the hexagonal head 22 and the rotating shaft 19 to wind the winding thread 20, the magnetic head 21 can be pulled away from the annular magnet 15. Thus, the positioning ring 24 slides down through the square rod 13, which can support the protective membrane 28 to bulge outward and deform, moving out of the range of the cannula 1 but still within the protective membrane 28. Thus, the positioning ring 24 can form a positioning function, preventing the channel itself (Trocar) from being taken out of the body as the doctor inserts and removes the surgical instruments.

[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable positioning laparoscopic channel, characterized in that: The sleeve includes a first sleeve (1), a second sleeve (2) is slidably installed inside the first sleeve (1), a connector (3) is fixedly connected to the top of the second sleeve (2), a slot (4) is fixedly opened on the surface of the connector (3), a vertical groove (5) is opened inside the second sleeve (2), a slider (6) is slidably installed inside the slot (4), a connecting rod (7) is fixedly connected to one side of the slider (6), a connecting shaft (8) is fixedly connected to the bottom end of the connecting rod (7), an L-shaped rod (9) is rotatably installed on the surface of the connecting shaft (8), a connecting shaft (10) is fixedly connected inside the second sleeve (2), the connecting shaft (10) is movably connected to the L-shaped rod (9), a round hole (11) is opened inside the first sleeve (1), and a square hole (12) is opened on the surface of the first sleeve (1). A square rod (13) is slidably installed inside the square hole (12). A fixed seat (14) is fixedly connected to the top of the square rod (13). A ring magnet (15) is embedded inside the fixed seat (14). A magnetic block (16) is embedded on the lower surface of the fixed seat (14). A magnetic block (17) is embedded on the inner surface of the sleeve (1). A slot (18) is opened on the surface of the connector (3). A rotating shaft (19) is inserted into the slot (18). A wire (20) is wound on the surface of the rotating shaft (19). A magnetic head (21) is fixedly connected to the bottom end of the wire (20). A hexagonal head (22) is fixedly connected to one end of the rotating shaft (19). A hexagonal groove (23) is opened on the surface of the connector (3). A positioning ring (24) is fixedly connected to the bottom end of the square rod (13).

2. The adjustable positioning laparoscopic channel according to claim 1, characterized in that: The connecting rod (7) is located inside the vertical groove (5).

3. The adjustable positioning laparoscopic channel according to claim 1, characterized in that: The circular holes (11) are distributed in a vertical linear array.

4. The adjustable positioning laparoscopic channel according to claim 1, characterized in that: The positions of magnetic block one (16) and magnetic block two (17) are vertically aligned.

5. The adjustable positioning laparoscopic channel according to claim 1, characterized in that: The connector (3) has a wire groove (25) inside, and the wire (20) passes through the wire groove (25). The magnetic force of the magnetic head (21) is greater than that of the first magnetic block (16) and the second magnetic block (17).

6. The adjustable positioning laparoscopic channel according to claim 1, characterized in that: A spring (26) is fixedly connected to the lower surface of the slider (6).

7. The adjustable positioning laparoscopic channel according to claim 1, characterized in that: The surface of the sleeve 2 (2) is fixedly connected to the positioning ring 2 (27).

8. The adjustable positioning laparoscopic channel according to claim 1, characterized in that: A protective film (28) is fixedly connected to the outer surface of the sleeve (1).

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