An angle-adjustable laparoscopic puncture device

Abstract

The utility model discloses an angle adjustable laparoscope puncture outfit relates to laparoscope puncture technical field, including the sleeve, the sleeve inside swing installation has puncture needle, and the end of sleeve rotatory installation has the adjusting sleeve, and the adjusting sleeve is set up respectively adjusting groove no.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of laparoscopic puncture, especially a laparoscopic puncture device with adjustable angle. BACKGROUND

[0002] As a minimally invasive surgical technique, laparoscopic surgery has been widely used in various abdominal surgeries. Its core is to establish a channel into the body cavity through a puncture device, so as to insert a laparoscope and various surgical instruments for operation.

[0003] At present, the puncture device commonly used in laparoscopic surgery is mostly a single channel structure, and the puncture needle and various surgical instruments share the same sleeve channel. In actual operation process, there is often a mismatch between the diameter of the surgical instrument and the size of the sleeve, which affects the stability and controllability of the instrument use, so it is usually necessary to additionally equip an independent converter to adapt to different sizes of instruments.

[0004] However, the traditional use of independent converter has the problems of inconvenience to replace and large space occupation, which not only reduces the surgical efficiency, but also may increase the risk of intraoperative infection or the probability of operation error. INVENTION CONTENTS

[0005] To achieve the above purpose, the specific technical scheme of the utility model is as follows: a laparoscopic puncture device with adjustable angle, comprising a sleeve, a puncture needle movably installed in the sleeve, an adjusting sleeve rotatably installed at the end of the sleeve, an adjusting groove one and an adjusting groove two are respectively formed on the adjusting sleeve, a fixing assembly for fixing the puncture needle is slidably installed in the adjusting groove one, a conversion assembly for fixing the surgical instrument is slidably installed in the adjusting groove two, and the sleeve is movably installed in the adjusting assembly, and the adjusting assembly supports the sleeve.

[0006] Preferably, the fixing assembly comprises an inner sleeve sliding in the adjusting groove one, and an adjusting screw one is rotatably arranged in the adjusting groove one, and the adjusting screw one is threadedly connected with one side of the inner sleeve.

[0007] Preferably, the other side of the inner sleeve slides in the sliding groove one formed in the adjusting sleeve.

[0008] Preferably, a vertical groove is formed on the outer side of the inner sleeve, a fixing sleeve is slidably arranged in the vertical groove, and the fixing sleeve is inserted and matched with the upper end of the sleeve.

[0009] Preferably, the conversion assembly comprises an outer ring sliding in the adjusting groove two, an inner ring is fixedly arranged in the outer ring, two groups of conversion sleeves are arranged in the inner ring, and springs are connected between the conversion sleeves and the inner ring.

[0010] Preferably, the other side of the outer ring slides in the sliding groove two formed in the adjusting sleeve.

[0011] Preferably, an adjusting screw is rotatably provided inside the adjusting groove, and the adjusting screw is threadedly connected to one side of the outer ring.

[0012] Preferably, the adjustment component includes a vertical rod, with a positioning sleeve rotatably disposed at the upper end of the vertical rod, a positioning sleeve 2 disposed on one side of the positioning sleeve 1, a sleeve located inside the positioning sleeve 1 and the positioning sleeve 2, and medical adhesive pasted on the lower end of the vertical rod.

[0013] Preferably, one side of the positioning sleeve one is provided with an insertion hole, and one side of the positioning sleeve two is provided with an insertion block, which is inserted into the insertion hole.

[0014] Preferably, a rotating groove is provided on the outer side of the upper end of the sleeve, and a rotating ring is provided on the inner side of the adjusting sleeve, with the rotating ring rotating within the rotating groove.

[0015] The adjustable-angle laparoscopic trocar of this invention has the following advantages: 1. This adjustable-angle laparoscopic trocar features a rotatable adjusting sleeve mounted on the upper end of the cannula. An inner sleeve and an outer ring are slidably mounted on the adjusting sleeve. When the inner sleeve slides to the top of the cannula, it is inserted into the cannula using a fixing sleeve. The puncture needle can be fixed inside the cannula through the inner sleeve, facilitating puncture operations. When the outer ring slides to the top of the cannula, the fixing size can be reduced using a conversion sleeve, facilitating the fixation of surgical instruments that need to pass through the cannula. The adjusting sleeve has a rotation function, allowing for flexible adjustment of the angle of the trocar or surgical instruments according to surgical needs. This further meets the requirements for operation direction and spatial layout in complex surgical procedures, improving the convenience and safety of the surgery.

[0016] 2. This adjustable-angle laparoscopic trocar has a positioning sleeve one and a positioning sleeve two installed on the outside of the cannula. This allows the cannula to be supported when it needs to be used vertically, and the positioning sleeve one and the positioning sleeve two can be removed when it needs to be used at an angle. Before puncture, the puncture direction and angle can be pre-adjusted by rotating the positioning sleeve one on the vertical rod, thereby better adapting to the needs of different surgical approaches and improving the accuracy and flexibility of the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the overall structure of this utility model broken down. Figure 3 This is a schematic diagram of the positioning sleeve structure of this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the adjusting plate, sleeve, etc. of this utility model; Figure 5 This is a top view schematic diagram of the adjustment plate and other structures of this utility model; Figure 6This is a cross-sectional view of the inner sleeve and other structures of this utility model; Figure 7 This is a top view of the outer ring structure of this utility model; Figure 8 This is a schematic diagram of the sleeve and other structures of this utility model.

[0018] The markings in the diagram are as follows: 1. Cannula; 2. Puncture needle; 3. Positioning sleeve one; 4. Positioning sleeve two; 5. Vertical rod; 6. Medical adhesive; 7. Insertion hole; 8. Insertion block; 9. Adjusting sleeve; 10. Rotary groove; 11. Rotary ring; 12. Adjusting groove one; 13. Adjusting groove two; 14. Adjusting screw one; 15. Adjusting screw two; 16. Slide groove one; 17. Slide groove two; 18. Inner sleeve; 19. Vertical groove; 20. Fixing sleeve; 21. Outer ring; 22. Inner ring; 23. Spring; 24. Conversion sleeve. Detailed Implementation

[0019] like Figures 1-8 As shown, the present invention provides an adjustable-angle laparoscopic puncture device, including a cannula 1, in which a puncture needle 2 is movably installed. One end of the puncture needle 2 has a tapered structure to facilitate puncture. After puncture, the puncture needle 2 can be removed, and the cannula 1 remains at the puncture site on the patient.

[0020] The end of the cannula 1 is rotatably fitted with an adjusting sleeve 9. The adjusting sleeve 9 is provided with an adjusting groove 12 and an adjusting groove 13. A fixing component for fixing the puncture needle 2 is slidably installed in the adjusting groove 12 to improve the stability during puncture.

[0021] Furthermore, the fixing component includes an inner sleeve 18 that slides on one side within an adjustment groove 12. An adjustment screw 14 is rotatably disposed within the adjustment groove 12. The adjustment screw 14 is threadedly connected to one side of the inner sleeve 18. Therefore, the inner sleeve 18 can be automatically moved by rotating the adjustment screw 14. When the inner sleeve 18 is moved directly above the cannula 1, the puncture needle 2 can be fixed. The other side of the inner sleeve 18 slides within a groove 16 opened in the adjustment sleeve 9 to maintain the stability of the inner sleeve 18 during movement.

[0022] A vertical groove 19 is provided on the outer side of the inner sleeve 18. A fixing sleeve 20 is slidably disposed in the vertical groove 19. The fixing sleeve 20 is slid down to be inserted into the inside of the sleeve 1, so that the fixing sleeve 20 is stably connected to the sleeve 1 and the stability of the puncture needle 2 is maintained.

[0023] In addition, a conversion assembly for fixing surgical instruments is slidably installed in the adjustment groove 2 13. The conversion assembly is used to fix the surgical instruments. Some surgical instruments are smaller than the size of the sleeve 1. Therefore, in order to improve the stability of the surgical instruments, the conversion assembly can be used to fix the surgical instruments.

[0024] The conversion assembly includes an outer ring 21 that slides on one side within the adjustment groove 13. An inner ring 22 is fixedly installed inside the outer ring 21. Two sets of conversion sleeves 24 are installed inside the inner ring 22. A spring 23 connects the conversion sleeves 24 and the inner ring 22. Surgical instruments can pass between the two sets of conversion sleeves 24 and be fixed by the conversion sleeves 24. When the conversion sleeves 24 are pushed by the surgical instruments, they can compress the spring 23. Therefore, the flexible use of surgical instruments can be satisfied.

[0025] The other side of the outer ring 21 slides in the groove 17 of the adjusting sleeve 9. The adjusting screw 15 is rotatably installed in the adjusting groove 13. The adjusting screw 15 is threadedly connected to one side of the outer ring 21. The movement of the outer ring 21 can be achieved by rotating the adjusting screw 15.

[0026] A rotating groove 10 is provided on the outer side of the upper end of the sleeve 1, and a rotating ring 11 is provided on the inner side of the adjusting sleeve 9. The rotating ring 11 rotates within the rotating groove 10.

[0027] This application improves the flexibility, precision and safety of surgical operations by setting a rotatable adjustable sleeve 9 at the upper end of the cannula 1, and by using a sliding inner sleeve 18 and an outer ring 21 to enable rapid switching and angle adjustment of the puncture needle 2 and surgical instruments.

[0028] Furthermore, the cannula 1 is movably installed inside the adjustment assembly, which supports the cannula 1. The adjustment assembly includes a vertical rod 5, with a positioning sleeve 3 rotatably mounted on the upper end of the vertical rod 5. A positioning sleeve 4 is mounted on one side of the positioning sleeve 3. The cannula 1 is located inside the positioning sleeve 3 and the positioning sleeve 4. Medical adhesive 6 is attached to the lower end of the vertical rod 5. The vertical rod 5 is attached to the patient's skin using the medical adhesive 6. The position and angle of the cannula 1 can be adjusted by rotating the positioning sleeve 3. Then, the cannula 1 and the puncture needle 2 can be slid downwards for puncture. This not only maintains the stability during puncture but also keeps the cannula 1 vertical. When the cannula 1 needs to be used at an angle, the positioning sleeve 3 and the positioning sleeve 4 can be disassembled.

[0029] To facilitate disassembly, an insertion hole 7 is provided on one side of the positioning sleeve 3, and an insertion block 8 is provided on one side of the positioning sleeve 4. The insertion block 8 is inserted into the insertion hole 7.

[0030] The working principle of an adjustable-angle laparoscopic trocar: During operation, the cannula 1 is first fixed to the vertical rod 5 using positioning sleeve 3 and positioning sleeve 4, maintaining a vertical position. Before puncture, the positioning sleeve 3 is rotated to adjust the angle, the inner sleeve 18 is slid above the cannula 1, and the fixing sleeve 20 is inserted to enhance stability. The puncture needle 2 passes through the inner sleeve 18 to complete the puncture operation. After puncture, the puncture needle 2 is removed, and the surgical instrument is changed as needed: the outer ring 21 is slid above the cannula 1, and the channel size is reduced by the conversion sleeve 24 to fix the instrument. The adjusting sleeve 9 can be rotated at any time to adjust the instrument angle to adapt to different surgical needs. If tilting operation is required, positioning sleeve 3 and positioning sleeve 4 can be removed to achieve flexible access.

[0031] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An adjustable-angle laparoscopic trocar, comprising a cannula (1), characterized in that: The puncture needle (2) is movably installed inside the cannula (1). An adjustment sleeve (9) is rotatably installed at the end of the cannula (1). An adjustment groove (12) and an adjustment groove (13) are respectively opened on the adjustment sleeve (9). A fixing component for fixing the puncture needle (2) is slidably installed in the adjustment groove (12). A conversion component for fixing surgical instruments is slidably installed in the adjustment groove (13). The cannula (1) is movably installed inside the adjustment component, and the adjustment component supports the cannula (1).

2. The adjustable-angle laparoscopic trocar according to claim 1, characterized in that: The fixing component includes an inner sleeve (18) that slides on one side within an adjustment groove (12), and an adjustment screw (14) is rotatably disposed within the adjustment groove (12). The adjustment screw (14) is threadedly connected to one side of the inner sleeve (18).

3. The adjustable-angle laparoscopic trocar according to claim 2, characterized in that: The other side of the inner sleeve (18) slides within the groove (16) opened in the adjusting sleeve (9).

4. The adjustable-angle laparoscopic trocar according to claim 3, characterized in that: The inner sleeve (18) has a vertical groove (19) on its outer side, and a fixed sleeve (20) is slidably disposed in the vertical groove (19). The fixed sleeve (20) is inserted into the upper end of the sleeve (1).

5. The adjustable-angle laparoscopic trocar according to claim 1, characterized in that: The conversion assembly includes an outer ring (21) that slides on one side in the adjustment groove (13), an inner ring (22) that is fixedly installed inside the outer ring (21), two sets of conversion sleeves (24) that are installed inside the inner ring (22), and a spring (23) connecting the conversion sleeves (24) and the inner ring (22).

6. The adjustable-angle laparoscopic trocar according to claim 5, characterized in that: The other side of the outer ring (21) slides within the second (17) groove opened in the adjusting sleeve (9).

7. The adjustable-angle laparoscopic trocar according to claim 6, characterized in that: An adjusting screw 2 (15) is rotatably installed inside the adjusting groove 2 (13), and the adjusting screw 2 (15) is threadedly connected to one side of the outer ring (21).

8. The adjustable-angle laparoscopic trocar according to claim 1, characterized in that: The adjustment assembly includes a vertical rod (5), a positioning sleeve 1 (3) is rotatably provided on the upper end of the vertical rod (5), a positioning sleeve 2 (4) is provided on one side of the positioning sleeve 1 (3), a sleeve (1) is located inside the positioning sleeve 1 (3) and the positioning sleeve 2 (4), and medical adhesive (6) is pasted on the lower end of the vertical rod (5).

9. The adjustable-angle laparoscopic trocar according to claim 8, characterized in that: The first positioning sleeve (3) has an insertion hole (7) on one side, and the second positioning sleeve (4) has an insertion block (8) on one side, which is inserted into the insertion hole (7).

10. The adjustable-angle laparoscopic trocar according to claim 1, characterized in that: A rotating groove (10) is provided on the outer side of the upper end of the sleeve (1), and a rotating ring (11) is provided on the inner side of the adjusting sleeve (9). The rotating ring (11) rotates in the rotating groove (10).

Images