Multi-channel piercer with rotation function

Abstract

The utility model discloses a kind of multi-channel puncture devices with rotating function, including multi-hole operation platform, main body ring seat, upper snap ring and lower snap ring;Wherein, the multi-hole operation platform is connected with the upper snap ring, the main body ring seat is connected with the lower snap ring, the upper snap ring is rotatably connected with the lower snap ring, the upper snap ring includes main part, upper ring wall part and upper hook part, the upper end of the upper ring wall part is connected on the main part, the upper hook part is connected on the lower end of the upper ring wall part and is raised outward along radial direction, clamping groove is equipped between the upper hook part and the main part, the lower snap ring includes lower ring wall part, lower hook part and inner boss part, the lower ring wall part is located on the outside of the upper ring wall part.The utility model can make multi-hole operation platform freely rotate to the angle required in turn and then facilitate instrument to move position, can avoid to limit the range of activity of instrument, in turn can improve the convenience of surgical operation.

Description

Technical Field

[0001] This utility model relates to a multi-channel puncture device with a rotation function. Background Technology

[0002] Currently, multi-channel trocars offer the advantage of reducing the number of puncture points and minimizing trauma compared to traditional single-channel trocars, making them widely used in minimally invasive surgery. For example, Chinese patent CN215018573U discloses a disposable multi-channel laparoscopic trocar. The multi-port operating platform is a crucial component of a multi-channel trocar. It features multiple operating channels through which instruments can pass, allowing them to penetrate the abdominal cavity for surgical procedures. However, in existing multi-channel trocars, the angle of the multi-port operating platform is mostly fixed, preventing free rotation. When instruments need to be moved after passing through the platform, the inability to rotate restricts their range of motion, thus hindering surgical procedures. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a multi-channel trocar with a rotation function. It can make the multi-hole operating platform rotate freely to the required angle, thereby facilitating the movement of instruments and avoiding restrictions on the range of motion of instruments, thus improving the convenience of surgical operation.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a multi-channel puncture device with rotation function, including a multi-hole operating platform, a main ring seat, an upper retaining ring and a lower retaining ring;

[0005] The multi-hole operating platform is connected to the upper retaining ring;

[0006] The main ring seat is connected to the lower retaining ring;

[0007] The upper retaining ring and the lower retaining ring are rotatably connected;

[0008] The upper retaining ring includes a main body, an upper ring wall, and an upper hook.

[0009] The upper end of the upper ring wall is connected to the main body.

[0010] The upper hook portion is connected to the lower end of the upper ring wall portion and protrudes outward in a radial direction;

[0011] A slot is provided between the upper hook and the main body;

[0012] The lower retaining ring includes a lower ring wall, a lower hook, and an inner boss.

[0013] The lower ring wall portion is located outside the upper ring wall portion;

[0014] The lower hook is connected to the upper end of the lower ring wall and protrudes radially inward; the lower hook is engaged in the slot.

[0015] The inner boss portion is connected to the lower end of the lower ring wall portion and extends radially inward, and the inner boss portion is located below the upper ring wall portion;

[0016] The multi-hole operating platform is provided with a sealing lip that extends between the upper ring wall and the inner boss to form a seal. The upper end of the sealing lip abuts against the upper ring wall, and the lower end of the sealing lip abuts against the inner boss.

[0017] Furthermore, the multi-hole operating platform is provided with an upper groove, and the main body of the upper retaining ring is embedded in the upper groove so that the upper retaining ring is connected to the multi-hole operating platform.

[0018] Furthermore, the multi-hole operating platform is provided with an extension portion that extends axially downward and is located inside the upper retaining ring. The sealing lip is connected to the lower end of the extension portion and extends into the space between the upper ring wall portion and the inner boss portion.

[0019] Furthermore, the lower retaining ring also includes an outer boss portion, which is connected to the lower end of the lower ring wall portion and extends radially outward;

[0020] The main ring seat has a lower groove, and the outer protrusion is embedded in the lower groove so that the lower retaining ring is connected to the main ring seat.

[0021] Furthermore, both the porous operating platform and the main ring seat are made of silicone.

[0022] Furthermore, a gap channel is provided between the multi-hole operating platform and the main ring seat, located outside the upper retaining ring and the lower retaining ring, and a retaining ring portion that protrudes downward and is located in the gap channel is provided on the multi-hole operating platform.

[0023] Furthermore, to facilitate the assembly of the upper and lower retaining rings, the lower ring wall is provided with multiple spacer grooves arranged sequentially along the circumference.

[0024] To further facilitate the assembly of the upper and lower retaining rings, the lower end of the upper hook is provided with a first assembly guide cone surface that gradually decreases in size from top to bottom, and the upper end of the lower hook is provided with a second assembly guide cone surface that gradually decreases in size from top to bottom.

[0025] Furthermore, in order to maintain the relative position between the upper and lower retaining rings, the top of the lower ring wall is provided with a plurality of retaining grooves arranged sequentially in the circumferential direction, and the main body of the upper retaining ring is provided with at least one position retaining mechanism.

[0026] The main body is provided with mounting holes that correspond one-to-one with the position holding mechanism, and the lower end of the mounting hole is provided with an anti-dislodgement step that protrudes radially inward.

[0027] The position holding mechanism includes a holding pin, a spring, and a stop cap;

[0028] The retaining pin is installed in the corresponding mounting hole. The retaining pin has an abutting part that passes through the inside of the anti-detachment step and abuts against the retaining groove. The retaining pin also has an abutting step part for abutting against the upper end face of the anti-detachment step to prevent the retaining pin from falling out of the mounting hole.

[0029] The plug is connected to the main body and blocks the upper opening of the corresponding mounting hole;

[0030] The spring is installed in the corresponding mounting hole, and the spring abuts against the retaining pin and the plug respectively, and is used to press down against the retaining pin so that the abutting part on the retaining pin abuts and engages in the retaining groove.

[0031] Furthermore, the multi-channel puncture device with rotation function also includes an incision protective sleeve, the upper end of which is connected to the main body ring seat.

[0032] By employing the above technical solution, the lower ring wall is positioned outside the upper ring wall, and the lower hook is engaged in the slot, allowing the upper and lower retaining rings to rotate and connect. The multi-hole operating platform is connected to the upper retaining ring, while the main ring seat is connected to the lower retaining ring. Therefore, when the main ring seat is fixed and the multi-hole operating platform is rotated, the upper retaining ring rotates relative to the lower retaining ring, which in turn causes the multi-hole operating platform to rotate relative to the main ring seat. This allows the multi-hole operating platform to rotate to any desired angle, facilitating the movement of instruments passing through it and avoiding restrictions on the instrument's range of motion, thus improving the convenience of surgical operations. Furthermore, the sealing lip extends between the upper ring wall and the inner boss, abutting against both portions, thereby forming an effective seal between them. This prevents gas leakage between the upper and lower retaining rings, ensuring excellent sealing performance. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the multi-channel puncture device with rotation function of this utility model.

[0034] Figure 2This is an exploded view of the assembly of the multi-channel puncture device with rotation function of this utility model;

[0035] Figure 3 This is a cross-sectional view of the multi-channel puncture device with rotation function of this utility model;

[0036] Figure 4 for Figure 3 Detailed view of part A in the middle;

[0037] Figure 5 This is a schematic diagram of the structure of the upper retaining ring of this utility model, which is embedded and installed in a multi-hole operating platform.

[0038] Figure 6 This is a schematic diagram of the structure of the lower retaining ring of this utility model, which is embedded and installed in the main ring seat;

[0039] Figure 7 This is a structural schematic diagram of the upper retaining ring and the position holding mechanism of this utility model;

[0040] Figure 8 This is a schematic diagram of the lower retaining ring of this utility model;

[0041] In the diagram: 1. Multi-hole operating platform; 2. Main ring seat; 3. Upper retaining ring; 4. Lower retaining ring; 5. Main body; 6. Upper ring wall; 7. Upper hook; 8. Slot; 9. Lower ring wall; 10. Lower hook; 11. Inner boss; 12. Sealing lip; 13. Puncture sleeve; 14. Air injection valve assembly; 15. Upper groove; 16. Extension; 17. Outer boss; 18. Lower groove; 19. Retaining ring; 20. Spacer groove; 21. First assembly guide cone; 22. Second assembly guide cone; 23. Retaining groove; 24. Position retaining mechanism; 25. Mounting hole; 26. Anti-detachment step; 27. Retaining pin; 28. Spring; 29. ​​Plug; 30. Abutment joint; 31. Abutment step; 32. Cutting protection sleeve. Detailed Implementation

[0042] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0043] like Figures 1-8 As shown, a multi-channel puncture device with a rotation function includes a multi-hole operating platform 1, a main ring seat 2, an upper retaining ring 3, and a lower retaining ring 4;

[0044] The multi-hole operating platform 1 is connected to the upper retaining ring 3, and the main ring seat 2 is connected to the lower retaining ring 4. The upper retaining ring 3 and the lower retaining ring 4 are rotatably connected. Thus, when the main ring seat 2 is fixed and the multi-hole operating platform 1 is rotated, the upper retaining ring 3 can rotate relative to the lower retaining ring 4, thereby causing the multi-hole operating platform 1 to rotate relative to the main ring seat 2. This allows the multi-hole operating platform 1 to rotate to any desired angle.

[0045] The upper retaining ring 3 includes a main body 5, an upper ring wall 6, and an upper hook 7;

[0046] The upper end of the upper ring wall portion 6 is connected to the main body portion 5;

[0047] The upper hook 7 is connected to the lower end of the upper ring wall 6 and protrudes outward in a radial direction;

[0048] A slot 8 is provided between the upper hook portion 7 and the main body portion 5;

[0049] The lower retaining ring 4 includes a lower ring wall portion 9, a lower hook portion 10, and an inner boss portion 11;

[0050] The lower annular wall portion 9 is located outside the upper annular wall portion 6;

[0051] The lower hook portion 10 is connected to the upper end of the lower ring wall portion 9 and protrudes radially inward, and the lower hook portion 10 is engaged in the slot 8;

[0052] The inner boss portion 11 is connected to the lower end of the lower ring wall portion 9 and extends radially inward, and the inner boss portion 11 is located below the upper ring wall portion 6;

[0053] The multi-hole operating platform 1 is provided with a sealing lip 12 that extends between the upper ring wall portion 6 and the inner boss portion 11 to form a seal. The upper end of the sealing lip 12 abuts against the upper ring wall portion 6, and the lower end of the sealing lip 12 abuts against the inner boss portion 11.

[0054] Specifically, by positioning the lower ring wall 9 outside the upper ring wall 6 and engaging the lower hook 10 in the slot 8, the upper retaining ring 3 and the lower retaining ring 4 can be rotatably connected. The multi-hole operating platform 1 is connected to the upper retaining ring 3, and the main ring seat 2 is connected to the lower retaining ring 4. Therefore, when the main ring seat 2 is fixed and the multi-hole operating platform 1 is rotated, the upper retaining ring 3 can rotate relative to the lower retaining ring 4, thereby causing the multi-hole operating platform 1 to rotate relative to the main ring seat 2. This allows the multi-hole operating platform 1 to rotate to any desired angle, facilitating the movement of instruments passing through it and avoiding restrictions on the instrument's range of motion, thus improving the convenience of surgical operations. Further specifically, the sealing lip 12 extends between the upper ring wall 6 and the inner boss 11, abutting against both. This forms an effective seal between the upper ring wall 6 and the inner boss 11, preventing gas leakage between the upper retaining ring 3 and the lower retaining ring 4 and ensuring good sealing performance. The specific structure of the multi-hole operating platform 1 is the prior art. The multi-hole operating platform 1 is connected to a puncture cannula 13 and an air injection valve assembly 14, and instruments can pass through the multi-hole operating platform 1 through the puncture cannula 13.

[0055] like Figures 3-5 As shown, the multi-hole operating platform 1 is provided with an upper groove 15, and the main body 5 of the upper retaining ring 3 is embedded in the upper groove 15 so that the upper retaining ring 3 is connected to the multi-hole operating platform 1.

[0056] like Figures 3-5 As shown, the multi-hole operating platform 1 is provided with an extension 16 that extends axially downward and is located inside the upper retaining ring 3. The sealing lip 12 is connected to the lower end of the extension 16 and extends into the space between the upper ring wall 6 and the inner boss 11.

[0057] like Figure 3 , 4 As shown in Figures 6 and 8, the lower retaining ring 4 also includes an outer protrusion 17, which is connected to the lower end of the lower ring wall 9 and extends radially outward.

[0058] The main ring seat 2 is provided with a lower groove 18, and the outer protrusion 17 is embedded in the lower groove 18 so that the lower retaining ring 4 is connected to the main ring seat 2.

[0059] In this embodiment, both the porous operating platform 1 and the main ring seat 2 can be made of silicone.

[0060] like Figure 4 , 5As shown, a gap channel is provided between the multi-hole operating platform 1 and the main body ring seat 2, located outside the upper retaining ring 3 and the lower retaining ring 4. The multi-hole operating platform 1 is provided with a downward protruding retaining ring portion 19 located in the gap channel.

[0061] like Figures 5-8 As shown, the lower ring wall 9 is provided with a plurality of spacer grooves 20 arranged sequentially along the circumference. The lower end of the upper hook 7 is provided with a first assembly guide cone surface 21 that gradually decreases in size from top to bottom. The upper end of the lower hook 10 is provided with a second assembly guide cone surface 22 that gradually decreases in size from top to bottom. Specifically, when the upper retaining ring 3 and the lower retaining ring 4 are assembled, the lower hook 10 can be smoothly engaged in the retaining groove 8 by means of the first assembly guide cone surface 21 and the second assembly guide cone surface 22. Furthermore, the spacer grooves 20 can divide the lower ring wall 9 into a plurality of arc segments. Thus, when the upper retaining ring 3 and the lower retaining ring 4 are assembled, each arc segment can be deformed outward, thereby enabling the lower hook 10 to be smoothly engaged in the retaining groove 8.

[0062] like Figures 3-8 As shown, the top of the lower ring wall 9 is provided with a plurality of retaining grooves 23 arranged sequentially along the circumference, and the main body 5 of the upper retaining ring 3 is provided with at least one position retaining mechanism 24.

[0063] The main body 5 is provided with mounting holes 25 that correspond one-to-one with the position holding mechanism 24, and the lower end of the mounting hole 25 is provided with an anti-dislodgement step 26 that protrudes radially inward.

[0064] The position holding mechanism 24 may include a holding pin 27, a spring 28, and a cap 29;

[0065] The retaining pin 27 is installed in the corresponding mounting hole 25. The retaining pin 27 has an abutting part 30 that passes through the inside of the anti-detachment step 26 and abuts against the retaining groove 23. The retaining pin 27 also has an abutting step part 31 for abutting against the upper end face of the anti-detachment step 26 to prevent the retaining pin 27 from falling out of the mounting hole 25.

[0066] The plug 29 is connected to the main body 5 and blocks the upper opening of the corresponding mounting hole 25;

[0067] The spring 28 is installed in the corresponding mounting hole 25. The spring 28 abuts against the retaining pin 27 and the plug 29 respectively and is used to press down against the retaining pin 27 so that the abutting part 30 on the retaining pin 27 abuts and engages in the retaining groove 23.

[0068] Specifically, when the upper retaining ring 3 rotates relative to the lower retaining ring 4 to the required angle, the spring 28 can press down against the retaining pin 27 so that the abutment portion 30 on the retaining pin 27 abuts and engages in the retaining groove 23, thereby maintaining the relative position between the upper retaining ring 3 and the lower retaining ring 4. This allows the upper retaining ring 3 to rotate arbitrarily relative to the lower retaining ring 4 and maintain its current position, making it more convenient to use. In this embodiment, three position holding mechanisms 24 are evenly distributed circumferentially, and the cap 29 can be screwed onto the main body 5 or glued to the main body 5.

[0069] like Figures 1-3 As shown, the multi-channel puncture device with rotation function may also include an incision protection sleeve 32, the upper end of which is connected to the main body ring seat 2.

[0070] In summary, by positioning the lower ring wall 9 outside the upper ring wall 6 and engaging the lower hook 10 in the slot 8, the upper retaining ring 3 and the lower retaining ring 4 can be rotatably connected. Furthermore, the multi-hole operating platform 1 is connected to the upper retaining ring 3, and the main ring seat 2 is connected to the lower retaining ring 4. Therefore, when the main ring seat 2 is fixed and the multi-hole operating platform 1 is rotated, the upper retaining ring 3 can rotate relative to the lower retaining ring 4, thereby causing the multi-hole operating platform 1 to rotate relative to the main ring seat 2. This allows the multi-hole operating platform 1 to rotate to any desired angle, facilitating the movement of instruments passing through it and avoiding restrictions on the instrument's range of motion, thus improving the convenience of surgical procedures. Additionally, the sealing lip 12 extends between the upper ring wall 6 and the inner boss 11, abutting against both, thus forming an effective seal between them. This prevents gas leakage between the upper retaining ring 3 and the lower retaining ring 4, ensuring excellent sealing performance.

[0071] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. 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. A multi-channel puncture device with a rotation function, characterized in that, It includes a multi-hole operating platform (1), a main ring seat (2), an upper retaining ring (3) and a lower retaining ring (4); The multi-hole operating platform (1) is connected to the upper retaining ring (3); The main ring seat (2) is connected to the lower retaining ring (4); The upper retaining ring (3) and the lower retaining ring (4) are rotatably connected; The upper retaining ring (3) includes a main body (5), an upper ring wall (6), and an upper hook (7). The upper end of the upper ring wall portion (6) is connected to the main body portion (5); The upper hook (7) is connected to the lower end of the upper ring wall (6) and protrudes outward in a radial direction; A slot (8) is provided between the upper hook (7) and the main body (5); The lower retaining ring (4) includes a lower ring wall portion (9), a lower hook portion (10), and an inner boss portion (11). The lower annular wall portion (9) is located outside the upper annular wall portion (6); The lower hook (10) is connected to the upper end of the lower ring wall (9) and protrudes radially inward, and the lower hook (10) is engaged in the slot (8); The inner boss (11) is connected to the lower end of the lower ring wall (9) and extends radially inward, and the inner boss (11) is located below the upper ring wall (6); The multi-hole operating platform (1) is provided with a sealing lip (12) that extends between the upper ring wall (6) and the inner boss (11) and forms a seal. The upper end of the sealing lip (12) abuts against the upper ring wall (6), and the lower end of the sealing lip (12) abuts against the inner boss (11).

2. The multi-channel puncture device with rotation function according to claim 1, characterized in that, The multi-hole operating platform (1) is provided with an upper groove (15), and the main body (5) of the upper retaining ring (3) is embedded in the upper groove (15) so that the upper retaining ring (3) is connected to the multi-hole operating platform (1).

3. The multi-channel puncture device with rotation function according to claim 1, characterized in that, The multi-hole operating platform (1) is provided with an extension (16) that extends axially downward and is located inside the upper retaining ring (3). The sealing lip (12) is connected to the lower end of the extension (16) and extends into the space between the upper ring wall (6) and the inner boss (11).

4. The multi-channel puncture device with rotation function according to claim 1, characterized in that, The lower retaining ring (4) also includes an outer boss (17), which is connected to the lower end of the lower ring wall (9) and extends radially outward. The main ring seat (2) is provided with a lower groove (18), and the outer protrusion (17) is embedded in the lower groove (18) so that the lower retaining ring (4) is connected to the main ring seat (2).

5. The multi-channel puncture device with rotation function according to claim 1, characterized in that, Both the porous operating platform (1) and the main ring seat (2) are made of silicone.

6. The multi-channel puncture device with rotation function according to claim 1, characterized in that, A gap channel is provided between the multi-hole operating platform (1) and the main body ring seat (2) located outside the upper retaining ring (3) and the lower retaining ring (4). The multi-hole operating platform (1) is provided with a downward protruding retaining ring (19) located in the gap channel.

7. The multi-channel puncture device with rotation function according to claim 1, characterized in that, The lower annular wall (9) is provided with a plurality of spacer grooves (20) arranged sequentially along the circumference.

8. The multi-channel puncture device with rotation function according to claim 1, characterized in that, The lower end of the upper hook (7) is provided with a first assembly guide cone surface (21) that gradually decreases in size from top to bottom, and the upper end of the lower hook (10) is provided with a second assembly guide cone surface (22) that gradually decreases in size from top to bottom.

9. The multi-channel puncture device with rotation function according to claim 1, characterized in that, The top of the lower ring wall (9) is provided with a plurality of retaining grooves (23) arranged in sequence along the circumference, and the main body (5) of the upper retaining ring (3) is provided with at least one position retaining mechanism (24). The main body (5) is provided with mounting holes (25) that correspond one-to-one with the position holding mechanism (24), and the lower end of the mounting hole (25) is provided with an anti-detachment step (26) that protrudes radially inward. The position holding mechanism (24) includes a holding pin (27), a spring (28), and a cap (29); The retaining pin (27) is installed in the corresponding mounting hole (25). The retaining pin (27) has an abutment portion (30) that passes through the inside of the anti-detachment step (26) and abuts against the retaining groove (23). The retaining pin (27) also has an abutment step portion (31) that abuts against the upper end face of the anti-detachment step (26) to prevent the retaining pin (27) from falling out of the mounting hole (25). The plug (29) is connected to the main body (5) and blocks the upper opening of the corresponding mounting hole (25); The spring (28) is installed in the corresponding mounting hole (25). The spring (28) abuts against the retaining pin (27) and the plug (29) respectively and is used to press down against the retaining pin (27) so that the abutting part (30) on the retaining pin (27) abuts and fits in the retaining groove (23).

10. The multi-channel puncture device with rotation function according to claim 1, characterized in that, It also includes a cut protection sleeve (32), the upper end of which is connected to the main body ring seat (2).

Images