Single-hole puncture instrument for endoscopic surgery of hepatobiliary surgery

Abstract

The utility model provides a hepatobiliary surgery endoscopic surgery single-hole puncture instrument which solves the problems of direction adjustment of a puncture outfit channel and the like and comprises a puncture cannula, the upper end of the puncture cannula is sealed by an operation platform, and a plurality of operation holes are formed in the operation platform. An opening and closing assembly for adjusting the aperture size of the operating hole and a rotating assembly for adjusting the orientation of the operating hole are arranged in the operating hole, and a quick release assembly is arranged between the operating platform and the puncture cannula. The utility model has the advantages of flexible channel orientation adjustment, convenient assembly and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of puncture instruments, and in particular relates to a single-hole puncture instrument for laparoscopic surgery of hepatobiliary surgery. Background Art

[0002] In minimally invasive medical surgery on the human body, once a disease is found in the human body, surgical resection is required. During the operation, the first thing to be used is a trocar. The trocar is a surgical instrument that pierces the abdominal wall and allows other surgical instruments to enter the body cavity. It is a minimally invasive surgical instrument. In hepatobiliary laparoscopic surgery, a multi-channel single-hole trocar is usually required to provide a stable surgical channel. However, in actual use, the existing single-hole trocar cannot adjust the channel position, which affects the adjustment of other surgical instruments and the orientation of the laparoscope. In addition, the trocar structure is too complicated, and it is cumbersome to disassemble and assemble during use, which affects the progress of the operation.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a single-port laparoscopic puncture device [201910934208.3], which includes a channel, the channel includes a flexible film channel and an upper ring and a lower ring combined at the upper and lower ends of the flexible film channel; a fixed seat, the fixed seat has a circumferential wall, a stopper formed on the upper side of the circumferential wall, and an annular platform formed at the upper end of the stopper; an axially extending operating gap is formed between the annular platform and the stopper; the circumferential wall is located below the stopper and the outer peripheral surface is sealed to fit the inside of the channel, and the stopper stops on the upper clamping ring; the clamping ring, the upper end of the clamping ring forms a connecting portion and the lower end forms a positioning fit of the inner wall of the circumferential wall, the connecting portion is used to seal and connect with the soft cover bag; the soft cover bag, the lower end of the soft cover bag is sealed and engaged with the connecting portion, and a boss for connecting the sleeve is formed on the soft cover bag.

[0004] The above solution solves the problem of rapid assembly of the existing trocar to a certain extent, but the solution still has many shortcomings, such as the inability to adjust the channel orientation. Summary of the invention

[0005] The utility model aims to solve the above problems and provide a single-hole puncture instrument for hepatobiliary laparoscopic surgery which has a reasonable design and can flexibly adjust the channel orientation.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a single-hole puncture instrument for laparoscopic surgery of hepatobiliary surgery, including a puncture cannula, the upper end of which is closed by an operating platform, a plurality of operating holes are opened on the operating platform, and the operating holes are respectively provided with opening and closing components for adjusting the aperture size and rotating components for adjusting the orientation of the operating holes, and a quick-release component is provided between the operating platform and the puncture cannula.

[0007] In the above-mentioned single-hole puncture instrument for laparoscopic hepatobiliary surgery, the rotating assembly includes a plurality of rotating plates rotatably mounted on the upper end of an operating platform. The rotating plates are superimposed on each other and respectively have a boss extending upward. The operating hole is arranged at the center of the boss. The rotating plate is provided with a limiting groove for sliding and plugging the bosses of adjacent rotating plates. The limiting grooves extend circumferentially along the operating platform and the radial orientations of adjacent limiting grooves relative to the center of the operating platform are different.

[0008] In the above-mentioned single-port puncture instrument for hepatobiliary surgical laparoscopic surgery, the opening and closing assembly includes an opening and closing cylinder rotatably mounted on the inner side of the operating hole, an opening and closing ring rotatably connected to the port of the operating hole is fixed to the upper end of the opening and closing cylinder, and an opening and closing plate is movably connected between the lower end of the opening and closing cylinder and the lower end of the rotating plate through a linkage assembly.

[0009] In the above-mentioned single-hole puncture instrument for laparoscopic hepatobiliary surgery, the linkage assembly includes a linkage plate fixed at the lower end of the opening and closing tube, the linkage plate is provided with a first linkage groove extending in the tangential direction, a fixed plate is fixed to the lower end of the rotating plate, a through hole opposite to the lower end of the opening tube is provided in the center of the fixed plate, the fixed plate is provided with a second linkage groove inclined relative to the radial direction thereof, the opening and closing plate is centrally symmetrically installed between the linkage plate and the fixed plate, and linkage protrusions slidably connected to the first linkage groove and the second linkage groove are respectively provided on the upper and lower parts of the opening and closing plate.

[0010] In the above-mentioned single-hole puncture instrument for hepatobiliary laparoscopic surgery, the end of the opening and closing piece opposite to the center of the opening and closing tube is in a pointed shape, and the edges of adjacent opening and closing pieces fit together.

[0011] In the above-mentioned single-port puncture instrument for hepatobiliary surgical laparoscopic surgery, the quick-release assembly includes a mounting port arranged at the lower end of the operating platform, a quick-release ring at the end of the mounting port, the lower end of the quick-release ring has a quick-release groove extending to the inside and arranged in a centrally symmetrical manner, the upper end of the puncture sleeve is provided with a quick-release protrusion slidably plugged into the quick-release groove, and a locking assembly is provided between the operating platform and the puncture sleeve.

[0012] In the above-mentioned single-hole puncture instrument for hepatobiliary surgical laparoscopic surgery, the locking assembly includes a locking sleeve that is slidably installed at the bottom of the operating platform, a locking protrusion is arranged on the outside of the puncture sleeve, and a locking groove is opened on the inside and outside of the locking sleeve for the locking protrusion to be inserted.

[0013] In the above-mentioned single-hole puncture instrument for hepatobiliary surgery laparoscopic surgery, the puncture sleeve is provided with an indicator scale along the axial direction.

[0014] In the above-mentioned single-hole puncture instrument for hepatobiliary surgery laparoscopic surgery, the outer side of the operating platform is covered with a protective layer of silicone material.

[0015] In the above-mentioned single-hole puncture instrument for hepatobiliary surgical laparoscopic surgery, an extended edge is arranged on the side of the lower end of the operating platform, and the bottom of the extended edge is covered with an anti-slip layer.

[0016] Compared with the existing technology, the advantages of the utility model are: the rotation component can be used to adjust the position of the operating hole relative to the operating platform, and the position adjustment of the laparoscope and other instruments can be achieved when the operating platform is fixed; the opening and closing component can flexibly control the opening and closing of the operating hole, thereby achieving the internal closure of the operating platform and improving the safety of surgical operations; the operating platform and the puncture cannula are quickly connected using a quick-release component, which reduces the overall structure of the puncture instrument and reduces the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another viewing angle of the utility model;

[0019] Figure 3 It is a structural sectional view of the utility model;

[0020] Figure 4 It is a partial cross-sectional view of the utility model;

[0021] Figure 5 It is a partial cross-sectional view of the utility model;

[0022] Figure 6 It is a partial schematic diagram of the opening and closing assembly of the utility model;

[0023] In the figure, the puncture sleeve 1, the indicating scale 11, the operating platform 2, the extended edge 22, the anti-slip layer 23, the operating hole 3, the opening and closing component 4, the opening and closing cylinder 41, the opening and closing ring 42, the opening and closing piece 43, the linkage piece 44, the first linkage groove 45, the fixing piece 46, the second linkage groove 47, the linkage protrusion 48, the rotating component 5, the rotating piece 51, the boss 52, the limit groove 53, the quick release component 6, the installation port 61, the quick release ring 62, the quick release groove 63, the quick release protrusion 64, the locking sleeve 65, the locking protrusion 66, and the locking groove 67. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1-6 As shown, a single-hole puncture instrument for laparoscopic surgery of hepatobiliary surgery includes a puncture sleeve 1, the upper end of which is closed by an operating platform 2, and a plurality of operating holes 3 are opened on the operating platform 2 so that a plurality of operating channels are arranged inside the operating platform 2. An opening and closing component 4 for adjusting the aperture size and a rotating component 5 for adjusting the orientation of the operating hole 3 are respectively arranged in the operating hole 3. Under normal conditions, the opening and closing component 4 keeps the operating hole 3 in a closed state, and the rotating component 5 is used to independently adjust the circumferential orientation of each operating hole 3. A quick-release component 6 is arranged between the operating platform 2 and the puncture sleeve 1, which is quickly plugged and fixed when in use.

[0026] Specifically, in order to ensure the flexibility of the position adjustment of the operation hole 3, the rotating assembly 5 includes a plurality of rotating pieces 51 rotatably mounted on the upper end of the operation platform 2, the rotating pieces 51 are superimposed on each other and each has a boss 52 extending upward, the operation hole 3 is arranged at the center of the boss 52, and the rotating piece 51 is provided with a limiting groove 53 for the boss 52 of the adjacent rotating piece 51 to slide and plug, the limiting groove 53 extends along the circumference of the operation platform 2 and the radial orientation of the adjacent limiting grooves 53 relative to the center of the operation platform 2 is different. Each rotating piece 51 rotates independently, and the boss 52 passes through the limiting groove 53 so that each operation hole 3 can be connected with the operation platform 2 and the puncture sleeve 1.

[0027] In detail, the opening and closing assembly 4 controls the opening and closing of the operating hole 3 by manual rotation, including an opening and closing cylinder 41 rotatably mounted inside the operating hole 3, an opening and closing ring 42 rotatably connected to the port of the operating hole 3 is fixed to the upper end of the opening and closing cylinder 41, and an opening and closing piece 43 is movably connected between the lower end of the opening and closing cylinder 41 and the lower end of the rotating piece 51 through a linkage assembly. The linkage assembly drives each opening and closing piece 43 to flip, thereby flexibly adjusting the internal diameter of the operating hole 3.

[0028] Furthermore, the linkage assembly includes a linkage piece 44 fixed to the lower end of the opening and closing cylinder 41, a first linkage groove 45 extending in the tangential direction is formed on the linkage piece 44, a fixed piece 46 is fixed to the lower end of the rotating piece 51, a through hole is formed in the center of the fixed piece 46 opposite to the lower end of the opening cylinder, a second linkage groove 47 is formed in the fixed piece 46 and is arranged obliquely relative to the radial direction thereof, the opening and closing piece 43 is centrally symmetrically installed between the linkage piece 44 and the fixed piece 46, and linkage protrusions 48 slidably connected to the first linkage groove 45 and the second linkage groove 47 are respectively formed on the upper and lower parts of the opening and closing piece 43. The linkage piece 44 rotates under the action of the opening and closing cylinder 41, thereby driving the linkage protrusion 48 to slide in the first linkage groove 45, and the linkage protrusion 48 on the other side of the opening and closing piece 43 also slides in the second linkage groove 47, and the overall orientation angle, circumferential direction and radial direction of the opening and closing piece 43 are adjusted accordingly.

[0029] Furthermore, the end of the opening and closing piece 43 opposite to the center of the opening and closing tube 41 is pointed, and the edges of adjacent opening and closing pieces 43 fit together. The opening and closing pieces 43 move in a vortex shape, and the diameter of the through hole in the center changes accordingly.

[0030] In addition, unlike the existing assembly structure, the quick release assembly 6 in the present application includes an installation port 61 provided at the lower end of the operating platform 2, a quick release ring 62 at the end of the installation port 61, a quick release groove 63 extending to the inner side and arranged symmetrically at the lower end of the quick release ring 62, a quick release protrusion 64 slidably plugged with the quick release groove 63 provided at the upper end of the puncture sleeve 1, and a locking assembly provided between the operating platform 2 and the puncture sleeve 1. When the upper end of the puncture sleeve 1 is inserted into the bottom of the operating platform 2, the quick release protrusion 64 is inserted into the quick release groove 63 and guides the puncture sleeve 1 to rotate spirally relative to the operating platform 2, and when it rotates into place, the puncture sleeve 1 and the operating platform 2 are axially limited.

[0031] At the same time, the locking assembly includes a locking sleeve 65 slidably mounted on the bottom of the operating platform 2, a locking protrusion 66 is arranged on the outside of the puncture sleeve 1, and a locking groove 67 is provided on the inside of the locking sleeve 65 for the locking protrusion 66 to be inserted. The puncture instrument as a whole remains in a vertical state, and the locking sleeve 65 is dropped so that the locking protrusion 66 is inserted into the locking groove 67, and at this time, the puncture sleeve 1 and the operating platform 2 are circumferentially limited.

[0032] It can be seen that the puncture cannula 1 is provided with an indicator scale 11 along the axial direction, and the operator can judge the insertion depth of the indicator scale 11 more intuitively according to the indicator scale 11 .

[0033] Obviously, in order to improve the surface friction of the operating platform 2, its outer side is covered with a protective layer 21 made of silicone material, and anti-slip stripes can be further added on the surface of the protective layer 21 according to actual needs.

[0034] Preferably, since the lower end of the operating platform 2 needs to contact the human body, an extension edge 22 is provided on its side to achieve orientation fixation, and the bottom of the extension edge 22 is covered with an anti-slip layer 23 to improve its fitting and fixing effect.

[0035] In summary, the principle of this embodiment is that the puncture sleeve 1 is plugged into the operating platform 2, wherein the operating hole 3 at the upper end of the operating platform 2 is arranged in the boss 52, and as the boss 52 and the rotating piece 51 rotate, the circumferential position of each operating hole 3 relative to the operating platform 2 is also adjusted accordingly.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although the present invention uses more terms such as puncture sleeve 1, indicator scale 11, operation platform 2, extension edge 22, anti-slip layer 23, operation hole 3, opening and closing component 4, opening and closing tube 41, opening and closing ring 42, opening and closing piece 43, linkage piece 44, first linkage groove 45, fixing piece 46, second linkage groove 47, linkage protrusion 48, rotating component 5, rotating piece 51, boss 52, limit groove 53, quick release component 6, installation port 61, quick release ring 62, quick release groove 63, quick release protrusion 64, locking sleeve 65, locking protrusion 66, locking groove 67, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A single-hole puncture instrument for laparoscopic hepatobiliary surgery, comprising a puncture cannula (1), the upper end of the puncture cannula (1) being closed by an operating platform (2), the operating platform (2) being provided with a plurality of operating holes (3), characterized in that: An opening and closing assembly (4) for adjusting the size of the aperture and a rotating assembly (5) for adjusting the orientation of the operating hole (3) are respectively arranged in the operating hole (3), and a quick-release assembly (6) is arranged between the operating platform (2) and the puncture sleeve (1).

2. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 1, characterized in that: The rotating assembly (5) comprises a plurality of rotating plates (51) rotatably mounted on the upper end of the operating platform (2); the rotating plates (51) are superimposed on each other and each has a boss (52) extending upward; the operating hole (3) is arranged at the center of the boss (52); the rotating plates (51) are provided with a limiting groove (53) for slidingly inserting the boss (52) of an adjacent rotating plate (51); the limiting groove (53) extends along the circumference of the operating platform (2) and the radial orientations of adjacent limiting grooves (53) relative to the center of the operating platform (2) are different.

3. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 2, characterized in that: The opening and closing assembly (4) comprises an opening and closing cylinder (41) rotatably mounted on the inner side of the operating hole (3); an opening and closing ring (42) rotatably connected to the end of the operating hole (3) is fixed to the upper end of the opening and closing cylinder (41); an opening and closing plate (43) is movably connected between the lower end of the opening and closing cylinder (41) and the lower end of the rotating plate (51) via a linkage assembly.

4. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 3, characterized in that: The linkage assembly comprises a linkage piece (44) fixed to the lower end of the opening and closing cylinder (41), the linkage piece (44) is provided with a first linkage groove (45) extending in a tangential direction, a fixing piece (46) is fixed to the lower end of the rotating piece (51), a through hole is provided at the center of the fixing piece (46) opposite to the lower end of the opening cylinder, the fixing piece (46) is provided with a second linkage groove (47) inclined relative to the radial direction thereof, the opening and closing piece (43) is centrally symmetrically installed between the linkage piece (44) and the fixing piece (46), and linkage protrusions (48) are provided on the upper and lower parts of the opening and closing piece (43) for sliding connection with the first linkage groove (45) and the second linkage groove (47), respectively.

5. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 3, characterized in that: The end of the opening and closing piece (43) opposite to the center of the opening and closing tube (41) is in a pointed shape, and the edges of adjacent opening and closing pieces (43) are in contact with each other.

6. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 1, characterized in that: The quick-release assembly (6) comprises a mounting opening (61) arranged at the lower end of the operating platform (2), a quick-release ring (62) at the end of the mounting opening (61), the lower end of the quick-release ring (62) having a quick-release groove (63) extending to the inner side and arranged in a central symmetrical manner, the upper end of the puncture sleeve (1) is provided with a quick-release protrusion (64) slidably plugged into the quick-release groove (63), and a locking assembly is provided between the operating platform (2) and the puncture sleeve (1).

7. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 6, characterized in that: The locking assembly comprises a locking sleeve (65) slidably mounted on the bottom of the operating platform (2) up and down, a locking protrusion (66) is arranged on the outside of the puncture sleeve (1), and a locking groove (67) for the locking protrusion (66) to be inserted is provided on the inside and outside of the locking sleeve (65).

8. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 1, characterized in that: The puncture sleeve (1) is provided with an indicating scale (11) along the axial direction.

9. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 1, characterized in that: The outer side of the operating platform (2) is covered with a protective layer (21) made of silicone material.

10. The single-hole puncture instrument for hepatobiliary laparoscopic surgery according to claim 1, characterized in that: An extension edge (22) is provided on the side surface of the lower end of the operating platform (2), and the bottom of the extension edge (22) is covered with an anti-slip layer (23).

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