Single-hole multi-channel laparoscopic surgery sheathing canal

Abstract

The invention discloses a single-hole multi-channel laparoscopic surgery sheathing canal, and relates to the technical field of medical instruments. The device comprises a through pipe and four sets of through holes, an outer ring is arranged at the top of the through pipe, an inner disc is arranged in the outer ring, the inner disc and the outer ring are connected through a connecting rod, supporting plates are arranged on the outer sides of the four sets of sliding blocks, and the four sets of through holes are formed in the four sets of supporting plates correspondingly; an elastic sealing film is arranged between the outer ring and the inner disc, and a connecting mechanism is arranged in the inner disc. According to the device, the four sets of through holes are formed in the four sets of supporting plates correspondingly, the four sets of supporting plates can rotate independently, then the four sets of supporting plates can be connected together through the connecting mechanism under the condition that using of other through holes is not affected, rotation of the four sets of supporting plates can be synchronously adjusted, and under the effect of the elastic sealing film, the supporting plates can be conveniently and rapidly fixed. The position of the through hole does not cause air leakage of the device.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a single-port multi-channel laparoscopic surgical sheath. Background Technology

[0002] Laparoscopic techniques have been widely used in clinical surgery. Conventional laparoscopic techniques typically require 3-5 incisions (5-12 mm in diameter) in the abdominal wall to insert cannulas, which are used to insert endoscopes and various surgical instruments. However, this surgical approach leaves multiple scattered scars, affecting aesthetics. Therefore, in recent years, single-port laparoscopic surgery via the umbilicus has emerged both domestically and internationally. This technique utilizes the natural scar tissue at the umbilicus as an incision to establish the surgical channel. It has been proven that the surgical results are consistent with conventional laparoscopic surgery, and without adding additional incisions besides the natural scar tissue at the umbilicus, the cosmetic effect is significant, demonstrating promising clinical application prospects.

[0003] Chinese patent (application number: CN202010039972.7) discloses a single-port multi-channel laparoscopic surgical sheath, including an operating panel, a through-hole plate, an obturator plate, a connecting inner support, and an incision protective sleeve. The operating panel, the through-hole plate, the obturator plate, and the connecting inner support are all equipped with an air inlet, an air outlet, and five through-holes arranged in a pentagonal shape. This symmetrical pentagonal design ensures that even if the operating panel and incision protective sleeve are misaligned, or if the through-holes need to be rotated during surgery, the operating panel will only rotate within a 45° angle. Compared to the 180° rotation of traditional single-port multi-channel laparoscopic surgical sheaths, this causes less pain for the patient and provides greater convenience for the surgeon. Furthermore, the design of the air inlet and outlet ensures that the abdominal cavity pressure remains constant while allowing smoke generated within the abdominal cavity to escape through the outlet, enabling the endoscope to clearly visualize the internal abdominal cavity and ultimately allowing the surgery to proceed smoothly. The five-cylinder symmetrical design of the through-hole ensures that even if the installation position of the control panel and the incision protective sleeve is slightly off, or if the through-hole needs to be turned during the operation, the control panel will only rotate within a 45° angle. Compared with the traditional single-port multi-channel laparoscopic surgery sheath rotating 180°, it causes less pain to the patient and is more convenient for the surgeon.

[0004] The patent and existing technologies have the following technical problems in practical use:

[0005] 1. Although the single-port multi-channel laparoscopic surgical sheath can be rotated by turning the control panel, turning the control panel will cause all four ports to rotate, making it impossible to rotate a single port individually. In actual surgery, the insertion of the fixing forceps cannot be rotated, which in turn prevents the other ports from rotating, thus limiting its application.

[0006] 2. This single-port multi-channel laparoscopic surgical sheath only increases the operating angle by controlling the direction of the through-hole, and the range of increase is limited. It cannot perform multi-directional operations at a fixed through-hole position, making the operation inconvenient. Summary of the Invention

[0007] The purpose of this invention is to solve the problem that existing sheaths cannot be turned individually at a certain through-hole and that the operating angle of surgical instruments is limited. This invention provides a single-hole multi-channel laparoscopic surgical sheath.

[0008] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0009] A single-port multi-channel laparoscopic surgical sheath includes a tube and four sets of through holes. The top of the tube has an outer ring, and inside the outer ring is an inner disc. The inner disc and the outer ring are connected by connecting rods, which are arranged in a ring on the inner side of the outer ring. There are four sets of connecting rods. An annular groove is formed on the outer side of the inner disc, and four sets of sliders are slidably connected inside the annular groove. Support plates are provided on the outer sides of each of the four sets of sliders, located between adjacent connecting rods. The four sets of through holes are respectively installed in the four sets of support plates. An elastic sealing membrane is provided between the outer ring and the inner disc, forming a sealed cavity. The support plates are located in the sealed cavity, and the elastic sealing membrane is sealed to the through holes.

[0010] The inner disk is equipped with a connecting mechanism that can connect four sets of support plates together.

[0011] Furthermore, the connecting mechanism includes an annular groove formed at the top of the annular slot, a locking ring inserted inside the annular groove, a sliding hole extending to the outside formed at the top of the annular groove, a push rod inserted inside the sliding hole, a top ring provided at the top of the push rod, a supporting spring provided between the top ring and the inner plate, a screw provided at the top of the inner plate, the screw located in the middle of the top ring, a knob threaded to the outside of the screw, the outer diameter of the knob being larger than the inner diameter of the top ring.

[0012] Furthermore, the sliding holes are distributed in a ring at the top of the annular groove, and a top rod is inserted into the interior of each set of sliding holes. Multiple sets of top rods are fixedly connected to the bottom of the top ring.

[0013] Furthermore, the outer side of the knob is provided with an inner groove in a ring shape.

[0014] Furthermore, a connecting ring membrane is provided at the connection between the elastic sealing membrane and the through hole, and the connecting ring membrane has a conical design.

[0015] Furthermore, both the elastic sealing membrane and the connecting ring membrane are made of latex and have a thickness of 1 mm.

[0016] Furthermore, the support plate has a ball joint hole inside, and a ball hinge is provided on the outside of the through hole, and the ball hinge is engaged in the ball joint hole.

[0017] Furthermore, a membrane channel is provided at the bottom of the tube, an inflation tube is provided on the outside of the membrane channel, an inner sleeve is provided inside the membrane channel, an air inlet pipe and an air outlet pipe are provided on the outside of the tube, and a sealing slip ring is sleeved on the outside of the tube.

[0018] Furthermore, the through hole is provided with a first stepped hole and a second stepped hole. A closed-hole plate is inserted into the first stepped hole. A slot is formed inside the closed-hole plate. A sealing plate is inserted into the second stepped hole. A sealing sliding hole is provided inside the sealing plate. The sealing plate is located above the closed-hole plate. A pressure ring is threaded to the top of the through hole. The pressure ring presses against the top of the sealing plate.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This invention sets four sets of through holes on four sets of support plates, and the four sets of support plates can rotate independently. Thus, without affecting the use of other through holes, the required position of the through hole can be rotated, which is convenient for adjustment. At the same time, the four sets of support plates can be connected together by a connecting mechanism, so that the rotation of the four sets of support plates can be adjusted synchronously. Moreover, under the action of the elastic sealing membrane, the position of the through hole will not cause air leakage in the device, and the rotation is stable.

[0021] 2. In this invention, a ball joint with a through hole is hinged in the support plate. The through hole can swing and rotate at any angle relative to the support plate, further increasing the operating angle and making it convenient to use. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a cross-sectional schematic diagram of the thin film channel of the present invention;

[0024] Figure 3 This is a schematic diagram of the outer ring of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the outer ring of the present invention;

[0026] Figure 5 This is a schematic cross-sectional view of the outer ring of the present invention;

[0027] Figure 6 This is the present invention. Figure 5 Enlarged diagram of part A in the middle;

[0028] Figure 7This is a schematic diagram of the internal structure of the through hole in this invention.

[0029] Reference numerals: 1. Through pipe; 2. Sealing slip ring; 3. Membrane channel; 4. Inlet pipe; 5. Outlet pipe; 6. Inflation pipe; 7. Inner ring; 8. Outer ring; 9. Inner disc; 10. Connecting rod; 11. Elastic sealing membrane; 12. Annular groove; 13. Slider; 14. Support plate; 15. Ball joint hole; 16. Locking ring; 17. Top rod; 18. Top ring; 19. Support spring; 20. Screw; 21. Knob; 22. Through hole; 23. Ball joint; 24. Closed-hole plate; 25. Sealing plate; 26. Pressure ring; 27. Connecting ring membrane. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] like Figures 1-7 As shown, a single-port multi-channel laparoscopic surgical sheath includes a tube 1 and four sets of through holes 22. The top of the tube 1 is provided with an outer ring 8, and the inner ring 9 is provided inside the outer ring 8. The inner ring 9 and the outer ring 8 are connected by connecting rods 10. The connecting rods 10 are distributed in a ring on the inner side of the outer ring 8, and there are four sets of connecting rods 10. An annular groove 12 is opened on the outer side of the inner ring 9. Four sets of sliders 13 are slidably connected inside the annular groove 12. Support plates 14 are provided on the outer side of each of the four sets of sliders 13. The support plates 14 are located between adjacent connecting rods 10. The four sets of through holes 22 are respectively installed in the four sets of support plates 14. An elastic sealing membrane 11 is provided between the outer ring 8 and the inner ring 9. The outer ring 8, the inner ring 9 and the elastic sealing membrane 11 form a sealed cavity. The support plates 14 are located in the sealed cavity. The elastic sealing membrane 11 is sealed to the through holes 22.

[0032] The inner plate 9 has a connecting mechanism inside, which can connect the four sets of support plates 14 together.

[0033] In use, the tube 1 is inserted into the abdominal cavity, and then the surgical instrument is inserted into the through hole 22. When it is necessary to rotate the direction of a single through hole 22, the connecting mechanism is unlocked. At this time, the four sets of support plates 14 can rotate arbitrarily. The surgical instrument drives the through hole 22 to rotate, the through hole 22 drives the support plate 14 to rotate, and the support plate 14 drives the slider 13 to rotate along the annular groove 12. While the through hole 22 rotates, the elastic sealing membrane 11 is stretched. The elastic sealing membrane 11 always ensures that the sealing cavity is sealed, ensuring that the device's sealing performance is not affected when the through hole 22 moves. Since the four sets of connecting rods 10 are distributed in a ring, the included angle between adjacent connecting rods 10 is 90 degrees. Therefore, the through hole 22 can rotate 45 degrees in both directions, which is convenient to use. When it is necessary to control the rotation of the four sets of through holes 22 at the same time, the four sets of support plates 14 are connected together through the connecting mechanism and rotate synchronously, which is convenient to control.

[0034] like Figures 4-6 As shown, in some embodiments, the connecting mechanism includes an annular groove formed at the top of the annular slot 12, a locking ring 16 inserted inside the annular groove, a sliding hole extending to the outside formed at the top of the annular groove, a push rod 17 inserted inside the sliding hole, a top ring 18 provided at the top of the push rod 17, a support spring 19 provided between the top ring 18 and the inner plate 9, a screw 20 provided at the top of the inner plate 9, the screw 20 being located in the middle of the top ring 18, a knob 21 threadedly connected to the outside of the screw 20, the outer diameter of the knob 21 being larger than the inner diameter of the top ring 18.

[0035] When it is necessary to control the rotation of four sets of through holes 22 simultaneously, turn knob 21. Knob 21 moves closer to inner plate 9 under the action of screw 20. Knob 21 drives top ring 18 to move closer to inner plate 9. Top ring 18 drives top rod 17 to insert into ring groove. Top rod 17 presses locking ring 16 onto slider 13. Locking ring 16 makes four sets of sliders 13 rotate synchronously through friction. At this time, controlling one set of through holes 22 to rotate will cause the other through holes 22 to rotate as well.

[0036] When only one set of through holes 22 needs to be controlled to rotate, the knob 21 is turned. Under the action of the screw 20, the knob 21 moves away from the inner plate 9 and away from the top ring 18. The support spring 19 drives the top ring 18 away from the inner plate 9. At this time, the push rod 17 no longer applies pressure to the locking ring 16, and the slider 13 can rotate relative to the locking ring 16. Thus, the rotation of a certain set of through holes 22 can be controlled individually, which is convenient to use.

[0037] like Figure 4 As shown, in some embodiments, the sliding holes are distributed in a ring at the top of the annular groove, and a top rod 17 is inserted into the interior of each set of sliding holes. Multiple sets of top rods 17 are fixedly connected to the bottom of the top ring 18. Through this design, the locking ring 16 is subjected to uniform force and has high connection stability.

[0038] like Figure 4As shown, in some embodiments, the outer side of the knob 21 is provided with an inner groove, which facilitates the rotation of the knob 21 and makes it easy to use.

[0039] like Figure 3 As shown, in some embodiments, a connecting ring membrane 27 is provided at the connection between the elastic sealing membrane 11 and the through hole 22. The connecting ring membrane 27 is tapered, which can ensure the sealing performance without affecting the swing of the through hole 22.

[0040] like Figure 3 As shown, in some embodiments, both the elastic sealing membrane 11 and the connecting ring membrane 27 are made of latex and have a thickness of 1 mm. The latex has sufficient elasticity and transparency to ensure that the elastic sealing membrane 11 can seal while not affecting the rotation of the support plate 14. At the same time, the interior of the abdominal cavity can be directly observed through the elastic sealing membrane 11, which is convenient for placing the tube 1.

[0041] like Figure 5 As shown, in some embodiments, the support plate 14 has a ball joint hole 15 inside, and a ball joint 23 is provided on the outside of the through hole 22, and the ball joint 23 is engaged in the ball joint hole 15.

[0042] This design allows the through hole 22 to swing and rotate at any angle relative to the support plate 14, further increasing the operating angle.

[0043] like Figure 1 As shown, in some embodiments, a membrane channel 3 is provided at the bottom of the tube 1, an air inlet tube 6 is provided on the outside of the membrane channel 3, an inner sleeve ring 7 is provided inside the membrane channel 3, an air inlet tube 4 and an air outlet tube 5 are provided on the outside of the tube 1, and a sealing slip ring 2 is sleeved on the outside of the tube 1.

[0044] When in use, air is introduced through the air inlet pipe 4 and then through the air outlet pipe 5. This design ensures that the abdominal cavity air pressure does not decrease while allowing the smoke generated in the abdominal cavity to be discharged through the air outlet pipe 5, thus enabling the endoscope to clearly view the internal condition of the abdominal cavity. It is convenient to use.

[0045] With the setting of the membrane channel 3, the tube 1 is not inflated before insertion. At the same time, the inner ring 7 is folded to facilitate the insertion of the membrane channel 3 into the abdominal cavity. After insertion, air is inflated into the membrane channel 3 through the inflation tube 6, causing the membrane channel 3 to expand. The expansion of the membrane channel 3 ensures from the inside that there is no air leakage between the tube 1 and the abdominal cavity wound. Furthermore, with the setting of the sealing slip ring 2, air leakage between the tube 1 and the abdominal cavity wound can be prevented from the outside, resulting in high sealing performance.

[0046] like Figure 7As shown, in some embodiments, the through hole 22 is provided with a first stepped hole and a second stepped hole. A closed hole plate 24 is inserted into the first stepped hole. A slot is formed inside the closed hole plate 24. A sealing plate 25 is inserted into the second stepped hole. A sealing sliding hole is provided inside the sealing plate 25. The sealing plate 25 is located above the closed hole plate 24. A pressure ring 26 is threaded to the top of the through hole 22. The pressure ring 26 presses against the top of the sealing plate 25.

[0047] When in use, the surgical instrument is inserted into the through hole 22. The surgical instrument first opens the sealing sliding hole, and then passes through the slotted end plate 24 and extends into the through tube 1. Under the combined action of the sealing plate 25 and the end plate 24, the through hole 22 will not leak air when the surgical instrument moves, ensuring the smooth progress of the operation.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single-port multi-channel laparoscopic surgical sheath, comprising a cannula (1) and four sets of through holes (22), characterized in that, The top of the tube (1) is provided with an outer ring (8), and the inner plate (9) is provided inside the outer ring (8). The inner plate (9) and the outer ring (8) are connected by connecting rods (10). The connecting rods (10) are distributed in a ring on the inner side of the outer ring (8). There are four sets of connecting rods (10). An annular groove (12) is opened on the outer side of the inner plate (9). Four sets of sliders (13) are slidably connected inside the annular groove (12). Support plates (14) are provided on the outer side of each of the four connecting rods (10). The support plates (14) are located between adjacent connecting rods (10). The four sets of through holes (22) are respectively installed in the four sets of support plates (14). An elastic sealing membrane (11) is provided between the outer ring (8) and the inner disk (9). The outer ring (8), the inner disk (9) and the elastic sealing membrane (11) form a sealed cavity. The support plates (14) are located in the sealed cavity. The elastic sealing membrane (11) is sealed to the through holes (22). The inner disk (9) is provided with a connecting mechanism that can connect the four sets of support plates (14) together.

2. The single-port multi-channel laparoscopic surgical sheath according to claim 1, characterized in that, The connecting mechanism includes an annular groove at the top of the annular slot (12), a locking ring (16) is inserted into the annular groove, a sliding hole extending to the outside is opened at the top of the annular groove, a top rod (17) is inserted into the sliding hole, a top ring (18) is provided at the top of the top rod (17), a support spring (19) is provided between the top ring (18) and the inner plate (9), a screw (20) is provided at the top of the inner plate (9), the screw (20) is located in the middle of the top ring (18), a knob (21) is threaded to the outside of the screw (20), and the outer diameter of the knob (21) is larger than the inner diameter of the top ring (18).

3. The single-port multi-channel laparoscopic surgical sheath according to claim 2, characterized in that, The sliding holes are arranged in a ring at the top of the ring groove. Each set of sliding holes is fitted with a push rod (17), and multiple sets of push rods (17) are fixedly connected to the bottom of the top ring (18).

4. The single-port multi-channel laparoscopic surgical sheath according to claim 3, characterized in that, The knob (21) has an inner groove on its outer ring.

5. The single-port multi-channel laparoscopic surgical sheath according to claim 1, characterized in that, A connecting ring membrane (27) is provided at the connection between the elastic sealing membrane (11) and the through hole (22), and the connecting ring membrane (27) is tapered.

6. A single-port multi-channel laparoscopic surgical sheath according to claim 5, characterized in that, Both the elastic sealing membrane (11) and the connecting ring membrane (27) are made of latex and have a thickness of 1 mm.

7. A single-port multi-channel laparoscopic surgical sheath according to claim 1, characterized in that, The support plate (14) has a ball joint hole (15) inside, and a ball joint (23) is provided on the outside of the through hole (22), and the ball joint (23) is engaged in the ball joint hole (15).

8. A single-port multi-channel laparoscopic surgical sheath according to claim 1, characterized in that, The bottom of the tube (1) is provided with a membrane channel (3), the outside of the membrane channel (3) is provided with an air inlet pipe (6), the inside of the membrane channel (3) is provided with an inner sleeve ring (7), the outside of the tube (1) is provided with an air inlet pipe (4) and an air outlet pipe (5), and a sealing slip ring (2) is sleeved on the outside of the tube (1).

9. A single-port multi-channel laparoscopic surgical sheath according to claim 1, characterized in that, The through hole (22) is provided with a first stepped hole and a second stepped hole. A closed hole plate (24) is inserted into the first stepped hole. A slot is formed inside the closed hole plate (24). A sealing plate (25) is inserted into the second stepped hole. A sealing sliding hole is provided inside the sealing plate (25). The sealing plate (25) is located above the closed hole plate (24). A pressure ring (26) is threaded to the top of the through hole (22). The pressure ring (26) presses against the top of the sealing plate (25).

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