CN111904557B

CN111904557B - Puncture instrument for abdominal cavity operation

Info

Publication number: CN111904557B
Application number: CN202010922943.5A
Authority: CN
Inventors: 陈煌婧; 何英
Original assignee: Nantong Tumor Hospital
Current assignee: Nantong Tumor Hospital
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-05-14
Anticipated expiration: 2040-09-04
Also published as: CN111904557A

Abstract

The invention relates to the technical field of surgical puncture instruments, in particular to a puncture instrument for abdominal cavity surgery, which comprises a tube body, a puncture tube is inserted in the tube body, the upper part of the tube body is connected with a base, the cross section of the base is circular, two parallel limit plates are arranged in the middle of the base at intervals, the limit plates are annular, the outer edge of each limit plate is vertically connected with the inner wall of the base, a plurality of fan-shaped plates are clamped between the two limit plates, the upper surface and the lower surface of the sector plates are respectively in sliding fit with the two limit plates, elastic cloth is connected between the side edges of the adjacent sector plates, the outer edges of the sector plates jointly surround an elastic ring which is arranged between the two limit plates, the outer edge of the elastic ring is pressed against the inner wall of the base, the upper part of the inner edge of the sector plate is fixedly connected with an inclined block, the inner side of the inclined block is an inclined surface, and the inclined direction is that one side close to the inner edge of the sector plate is lower than the other side. The invention can facilitate the operation of placing surgical instruments.

Description

Puncture instrument for abdominal cavity operation

Technical Field

The invention relates to the field of surgical puncture instruments, in particular to a puncture instrument for abdominal cavity surgery.

Background

In laparoscopic surgery, 2-5 holes are generally adopted, one is used for placing a laparoscope and is generally positioned on a navel of the lower abdomen, and the other holes are used for placing surgical instruments. At present, the specifications of widely used laparoscopic surgical instruments are 5mm, 10mm, 12mm and the like from the outside diameter, and the laparoscopic surgical instruments need to be matched and used on puncture cannulas with corresponding inside diameters so as to avoid pneumoperitoneum air leakage and influence on the normal operation of the operation. Clinically, a surgical operation usually requires surgical instruments of various specifications and is used alternately during the operation. For a puncture site, the fixed puncture cannula is not convenient to replace. In the using process, taking a 10mm puncture cannula as an example, when a 10mm surgical instrument is used, the gap between the inner hole of the top cover of the cannula and the instrument is small (generally 0.5-2 mm), and when the instrument swings left and right, the sealing cap is made of elastic material, so that the ductility of the sealing cap can ensure that the inner hole of the sealing cap is tightly attached to the instrument, and the sealing performance is good; when a 5 mm-sized surgical instrument is used, the gap between the inner hole of the top cover of the sleeve and the instrument is large (generally 3-5 mm), and when the instrument swings left and right, the elastic deformation of the sealing cap is not enough to enable the inner hole to be tightly attached to the instrument, so that air leakage is generated.

Chinese patent No. CN201510268699.4 discloses a method for manufacturing a variable diameter abdominal cavity puncture outfit and a variable diameter abdominal cavity puncture outfit, which adjust a plurality of sliders to move in a rotating manner, and clamp an instrument by moving the sliders, so as to prevent air leakage.

Disclosure of Invention

The invention aims to solve the defect of inconvenient operation in the prior art, and provides a puncture instrument for abdominal cavity operation.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a puncture instrument for abdominal cavity operation comprises a tube body, a puncture tube is inserted in the tube body, the upper part of the tube body is connected with a base, the section of the base is circular, two parallel limit plates are arranged in the middle of the base at intervals, the limiting plates are annular, the outer edges of the limiting plates are vertically connected with the inner wall of the base, a plurality of fan-shaped plates are clamped between the two limiting plates, the upper surface and the lower surface of the sector plates are respectively in sliding fit with the two limit plates, elastic cloth is connected between the side edges of the adjacent sector plates, the outer edges of the sector plates jointly surround an elastic ring which is arranged between the two limit plates, the outer edge of the elastic ring is pressed against the inner wall of the base, the upper part of the inner edge of the sector plate is fixedly connected with an inclined block, the inner side of the inclined block is an inclined surface, and the inclined direction is that one side close to the inner edge of the sector plate is lower than the other side.

Preferably, a plurality of concentric annular grooves are formed in the elastic ring, and the annular grooves are arranged at equal intervals.

Preferably, the upper part of the base is in threaded connection with a sealing cover, the upper end of the puncture tube is connected with an end cover, the bottom surface of the end cover props against the upper end of the sealing cover, and the end cover is connected with the sealing cover through a movable connection structure.

Preferably, swing joint structure includes a plurality of stoppers of the outer wall connection of end cover, the stopper is annular array and distributes, a plurality of boards that collude of upper end fixedly connected with of sealed lid, collude the board and be annular array and distribute, collude the board and be L shape, the lower extreme that colludes the board is connected with the up end of sealed lid is perpendicular, the stopper all blocks at one of them collude the lower part of board, the one end sub-unit connection that colludes the board and keep away from sealed lid colludes the point, it is isosceles trapezoid to collude the point, the bottom of colluding the point is the plane that is on a parallel with the sealed up end that covers.

Preferably, the outer edge of the upper end of the end cover is vertically connected with an annular end plate, the annular array of the outer edge of the end plate is provided with first anti-slip teeth, and the annular array of the side wall of the sealing cover is provided with second anti-slip teeth.

Preferably, the side wall of the base is connected with a through pipe, the through pipe is provided with a control valve, and the control valve is a two-way valve.

Preferably, the camera module is installed through the mount pad in the lower extreme of puncture pipe inside, the outside cover of camera module is equipped with the translucent cover, the translucent cover is connected through the lower extreme of screw thread with the puncture pipe.

Preferably, the lower end of the transparent cover is provided with a tip, and the tip is in a positive conical shape.

Preferably, the sector plates are provided with six pieces, and the circular angle of the sector plates is 55 degrees.

Compared with the prior art, the invention has the following beneficial effects: the base is arranged at the upper end of the sleeve, the plurality of fan-shaped plates are arranged inside the base, the elastic ring is arranged between the fan-shaped plates and the inner wall of the base, the fan-shaped plates can be drawn close to the middle through the elastic force provided by the elastic ring, so that the surgical instrument is clamped, gaps between the surgical instrument and the inner wall of the base are effectively filled, the elastic cloth between the fan-shaped plates and the elastic ring have certain elastic deformation capacity, the surgical instrument can be suitable for surgical instruments with different diameters, the inclined blocks are arranged at the end parts of the fan-shaped plates, the inclined planes on the inclined blocks can be used for automatically opening the fan-shaped plates when the surgical instrument is placed in the inclined blocks without manual operation, and the problem of inconvenient operation in the prior art is solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the configuration of the puncture tube of the present invention;

FIG. 4 is a cross-sectional view of a base of the present invention;

fig. 5 is a schematic structural view of the elastic ring of the present invention.

In the figure: the anti-skidding type camera shooting device comprises a pipe body 1, a base 2, a sealing cover 3, an end cover 4, first anti-skidding teeth 5, an end plate 6, an annular groove 7, a control valve 8, a through pipe 9, a hook plate 10, a hook tip 11, a limiting block 12, second anti-skidding teeth 13, a puncture pipe 14, a camera shooting module 15, a tip 16, a transparent cover 17, an inclined block 18, a limiting plate 19, a sector plate 20, an elastic ring 21 and elastic cloth 22.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

The puncture instrument for abdominal cavity surgery shown in fig. 1-5 comprises a tube body 1, a puncture tube 14 is inserted in the tube body 1, the upper part of the tube body 1 is connected with a base 2, the cross section of the base 2 is circular, two limiting plates 19 which are parallel to each other are arranged in the middle of the base 2 at intervals, the limiting plates 19 are annular, the outer edges of the limiting plates 19 are vertically connected with the inner wall of the base 2, a plurality of sector plates 20 are clamped between the two limiting plates 19, the upper surface and the lower surface of each sector plate 20 are respectively in sliding fit with the two limiting plates 19, elastic cloth 22 is connected between the side edges of the adjacent sector plates 20, the outer edges of the sector plates 20 jointly enclose an elastic ring 21, the elastic ring 21 is arranged between the two limiting plates 19, the outer edge of the elastic ring 21 abuts against the inner wall of the base 2, an inclined block 18 is fixedly connected to the upper part of the inner edge of the sector plate 20, and the inner side. A plurality of concentric annular grooves 7 are arranged on the elastic ring 21, and the annular grooves 7 are arranged at equal intervals. The elastic ring 21 can be expanded by arranging the annular groove 7, and the elastic deformation capacity of the elastic ring is improved.

The elastic force provided by the elastic ring 21 can enable the sector plates 20 to be drawn close to the middle, so that the surgical instrument can be clamped, gaps between the surgical instrument and the inner wall of the base 2 can be effectively filled, and the elastic cloth 22 and the elastic ring 21 between the sector plates 20 have certain elastic deformation capacity, so that the surgical instrument can be suitable for different diameters, the inclined blocks 18 are arranged at the end parts of the sector plates 20, the inclined planes on the inclined blocks 18 can be used for automatically opening the sector plates 20 when the surgical instrument is placed in, manual operation is not needed, the problem of inconvenience in operation in the prior art is solved, the limiting plate 19 is used for guiding the movement of the sector plates 20, and the sector plates 20 can keep the state perpendicular to the inner wall of the base 2. The sector plate 20 is provided with six pieces in total, and the circular angle of the sector plate 20 is 55 degrees. The sector plates 20 are preferably six, although other numbers of designs are possible.

The upper part of the base 2 is in threaded connection with a sealing cover 3, the upper end of the puncture tube 14 is connected with an end cover 4, the bottom surface of the end cover 4 props against the upper end of the sealing cover 3, and the end cover 4 is connected with the sealing cover 3 through a movable connection structure. The swing joint structure includes a plurality of stoppers 12 of the outer wall connection of end cover 4, stopper 12 is annular array and distributes, a plurality of boards 10 that collude of upper end fixedly connected with of sealed lid 3, it is annular array and distributes to collude board 10, it is L shape to collude board 10, the lower extreme that colludes board 10 is connected with the up end of sealed lid 3 is perpendicular, stopper 12 all blocks in the lower part that one of them colludes board 10, the one end sub-unit connection that colludes board 10 and keep away from sealed lid 3 has colludes point 11, collude point 11 and be isosceles trapezoid, the bottom that colludes point 11 is the plane that is on a parallel with sealed 3 up end of lid.

Realize through sealed lid 3 sealed to 2 upper portions of base, sealed lid 3 can loosen through the screw thread, great sample is taken out in the convenient operation, can be connected end cover 4 spacing through the cooperation of colluding board 10 and stopper 12, thereby it can take off end cover 4 to make the stopper 12 collude the bottom of colluding board 10 to deviate from through rotatory end cover 4, collude the point 11 of colluding that board 10 tip set up and set up to isosceles trapezoid can be to the card income of stopper 12 with deviate from and guide, collude board 10 itself for having certain elastic structure, only need rotatory end cover 4 hard can realize the card income of stopper 12 and deviate from, and convenient operation.

The outer edge of the upper end of the end cover 4 is vertically connected with an annular end plate 6, the outer edge of the end plate 6 is annularly arrayed with first anti-slip teeth 5, and the side wall of the sealing cover 3 is annularly arrayed with second anti-slip teeth 13. The lateral wall of base 2 is connected with siphunculus 9, is equipped with control valve 8 on the siphunculus 9, and control valve 8 is the two-way valve. The camera module 15 is installed through the mount pad in the lower extreme of puncture pipe 14 inside, and the outside cover of camera module 15 is equipped with translucent cover 17, and translucent cover 17 is connected with the lower extreme of puncture pipe 14 through the screw. The lower end of the transparent cover 17 is provided with a tip 16, and the tip 16 is in a positive conical shape. Through setting up camera module 15 can conveniently carry out accurate control to putting into of puncture apparatus.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The puncture instrument for the abdominal cavity operation comprises a tube body (1), wherein a puncture tube (14) is inserted in the tube body (1), and is characterized in that the upper part of the tube body (1) is connected with a base (2), the cross section of the base (2) is circular, two limiting plates (19) which are parallel to each other are arranged at the middle part of the base (2) at intervals, the limiting plates (19) are annular, the outer edges of the limiting plates (19) are vertically connected with the inner wall of the base (2), a plurality of fan-shaped plates (20) are clamped between the two limiting plates (19), the upper surface and the lower surface of each fan-shaped plate (20) are respectively in sliding fit with the two limiting plates (19), elastic cloth (22) is connected between the side edges of the adjacent fan-shaped plates (20), an elastic ring (21) is jointly surrounded by the outer edges of the fan-shaped plates (20), and the elastic ring (21) is arranged between, the outer edge of the elastic ring (21) is abutted against the inner wall of the base (2), the upper part of the inner edge of the sector plate (20) is fixedly connected with an inclined block (18), the inner side of the inclined block (18) is an inclined surface, and the inclined direction is that one side close to the inner edge of the sector plate (20) is lower than the other side.

2. A puncture instrument for abdominal surgery according to claim 1, characterized in that a plurality of concentric annular grooves (7) are provided on the elastic ring (21), and the annular grooves (7) are arranged equidistantly.

3. A puncture instrument for abdominal cavity surgery according to claim 1, wherein the upper portion of the base (2) is threadedly connected with a sealing cover (3), the upper end of the puncture tube (14) is connected with an end cap (4), the bottom surface of the end cap (4) is abutted against the upper end of the sealing cover (3), and the end cap (4) is connected with the sealing cover (3) through a movable connection structure.

4. The puncture instrument for the abdominal cavity surgery as claimed in claim 3, wherein the movable connection structure comprises a plurality of limiting blocks (12) connected with the outer wall of the end cover (4), the limiting blocks (12) are distributed in an annular array, a plurality of hook plates (10) are fixedly connected with the upper end of the sealing cover (3), the hook plates (10) are distributed in an annular array, the hook plates (10) are L-shaped, the lower ends of the hook plates (10) are perpendicularly connected with the upper end face of the sealing cover (3), the limiting blocks (12) are all clamped at the lower portion of one of the hook plates (10), the lower portion of one end, away from the sealing cover (3), of the hook plate (10) is connected with a hook tip (11), the hook tip (11) is in an isosceles trapezoid shape, and the bottom of the hook tip (11) is a plane parallel to the upper end face of the sealing cover (3).

5. A puncture instrument for abdominal cavity surgery as claimed in claim 3, characterized in that the end cap (4) is vertically connected with an annular end plate (6) at the upper end outer edge, the outer edge of the end plate (6) is provided with a first anti-skid teeth (5) in an annular array, and the side wall of the sealing cover (3) is provided with a second anti-skid teeth (13) in an annular array.

6. The puncture instrument for the abdominal cavity operation as claimed in claim 1, wherein a through pipe (9) is connected to the side wall of the base (2), a control valve (8) is arranged on the through pipe (9), and the control valve (8) is a two-way valve.

7. The puncture instrument for the abdominal cavity surgery according to claim 1, wherein a camera module (15) is installed inside the lower end of the puncture tube (14) through a mounting seat, a transparent cover (17) is covered outside the camera module (15), and the transparent cover (17) is connected with the lower end of the puncture tube (14) through threads.

8. The puncture instrument for abdominal cavity surgery as claimed in claim 7, wherein the transparent cover (17) is provided with a tip (16) at the lower end thereof, and the tip (16) is in a positive conical shape.

9. A laparoscopic surgical puncture instrument according to claim 7, wherein said sector-shaped plate (20) has six pieces in total, and the circular angle of said sector-shaped plate (20) is 55 °.