CN216854797U

CN216854797U - Abdominal cavity puncture outfit with sealing structure

Info

Publication number: CN216854797U
Application number: CN202122307329.0U
Authority: CN
Inventors: 刘斌; 周乐
Original assignee: Hunan Kangcheng Medical Technology Co ltd
Current assignee: Hunan Kangcheng Medical Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-07-01
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to the technical field of medical instruments, in particular to an abdominal cavity puncture outfit with a sealing structure. The abdominal cavity puncture outfit with the sealing structure comprises a puncture cone assembly, a sheath cap assembly and a puncture tube assembly, wherein puncture channels which are communicated with each other are arranged inside the sheath cap assembly and the puncture tube assembly, and the sheath cap assembly and the puncture tube assembly are tightly connected through a buckling assembly; the puncture cone assembly penetrates through the puncture channel and moves up and down in the puncture channel, and the puncture device is excellent in air tightness, good in safety, high in production efficiency and low in cost.

Description

Abdominal cavity puncture outfit with sealing structure

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an abdominal cavity puncture outfit with a sealing structure.

Background

In recent years, with the continuous development of medical technology, minimally invasive surgery with small wound, light pain and quick recovery gradually enters the visual field of people, and as a common instrument for the minimally invasive surgery, the function of a puncture outfit is gradually highlighted, so that the minimally invasive surgery is widely used by medical staff.

The puncture outfit is a surgical instrument for establishing an access into the abdominal cavity, and comprises a puncture core and a puncture cannula. In a specific operation process, a doctor generally opens a small opening on the abdomen of a patient, and then moves a puncture core of the puncture outfit downwards while aligning the puncture core with the small opening to rotate in a reciprocating manner, so that one end of a puncture cannula is driven to enter the abdominal cavity of the patient, after the puncture is completed, the puncture core is pulled out of the puncture cannula, and the puncture cannula forms a passage for other surgical instruments to enter and exit. In order to enlarge the space of the abdominal cavity and increase the distance between tissues, thereby being more beneficial to the operation, after the puncture is completed, the air is injected into the abdominal cavity through a channel formed by the puncture cannula, therefore, an air injection valve is required to be arranged on the puncture cannula, after the air injection is finished, the air injection valve is closed, and the interior of the puncture cannula is sealed, thereby ensuring the stability of pneumoperitoneum and facilitating the operation of doctors.

However, as the amount of puncture instruments used in the market increases, the disadvantages of the existing instruments are slowly revealed, which are reflected in the following two aspects: 1. the structure stability is poor, and air leakage is easy to occur, so that medical accidents are caused; 2. low production efficiency and high cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one technical problem in the prior art and provides a peritoneal puncture outfit with a sealing structure.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a peritoneal puncture outfit with a sealing structure comprises a puncture cone component, a sheath cap component and a puncture tube component, wherein puncture channels which are communicated with each other are arranged inside the sheath cap component and the puncture tube component, and the sheath cap component and the puncture tube component are tightly connected through a buckling component; the puncture cone assembly penetrates through the puncture channel and moves up and down in the puncture channel.

Furthermore, the puncture cone assembly comprises a fixed cover, a fixed ring and a puncture core, the fixed ring is arranged at the top of the puncture core, and the puncture core is connected with the fixed cover through a clamping hook.

Further, the sheath cap assembly comprises a first upper cover, a second upper cover, a protection sheet, a sealing ring, a first lower cover and a second lower cover, wherein the second upper cover, the protection sheet and the first lower cover are in interference fit and are in interference fit with the fixing ring; the sealing ring is arranged on the second lower cover, and the second lower cover is tightly combined with the first upper cover through ultrasonic welding.

Furthermore, the sealing ring is made of soft rubber material.

Further, the puncture tube component comprises a casing upper cover, a valve switch, a channel valve, a soft rubber sleeve, a casing lower cover and a puncture tube, wherein,

the periphery of the inner side of the lower sleeve cover is provided with a buckle;

a valve passage is arranged on the sleeve of the puncture tube, a step hole is arranged in the valve passage, and the step hole is arranged in the lower cover of the sleeve;

an annular clamping hook is arranged at the bottom of the valve switch, is movably connected with the step hole on the puncture tube, is wrapped in the soft rubber sleeve and is in interference fit with the valve channel of the puncture tube;

the channel valve is arranged at the top of the puncture tube, a sealing ring is arranged at the top of the channel valve, and step surfaces are arranged on the periphery of the channel valve;

one end of the sleeve upper cover is arranged in the sleeve lower cover and is tightly combined with the buckle of the sleeve lower cover by compressing the step surface of the channel valve; the other end of the sleeve is tightly connected with a second lower cover in the sheath cap component through a rotary clamping hook arranged at the top of the sleeve upper cover.

Furthermore, the top of the lower cover of the sleeve is a horn-shaped opening, and the bottom of the lower cover of the sleeve is provided with a through hole.

Furthermore, the middle of the valve switch is provided with a groove and a circular through hole, and the soft rubber sleeve is tightly wrapped on the groove of the valve switch.

Further, the flexible glue cover adopts the flexible glue material to make hollow cylinder, just cylindrical flexible glue cover's middle part be equipped with one with valve switch's circular through hole of circular through-hole assorted, the surface be equipped with four projections with the valve access assorted sealing rib of puncture pipe.

Furthermore, the rotary clamping hooks comprise three parts which are uniformly arranged at the top of the upper cover of the sleeve.

Furthermore, the bottom of the sleeve upper cover is provided with six symmetrically distributed square grooves, and the middle part of the sleeve upper cover is provided with a channel hole.

The utility model has the beneficial effects that: as can be seen from the above description of the present invention, compared with the prior art, the abdominal cavity puncture outfit with a sealing structure of the present invention comprises a puncture cone assembly, a sheath cap assembly and a puncture tube assembly, wherein puncture channels communicated with each other are arranged inside the sheath cap assembly and the puncture tube assembly, and the sheath cap assembly and the puncture tube assembly are tightly connected through a fastening assembly; the puncture cone assembly penetrates through the puncture channel and moves up and down in the puncture channel, and the puncture device is excellent in air tightness, good in safety, high in production efficiency and low in cost.

Drawings

FIG. 1 is a schematic structural view of a laparoscopic puncture instrument with a sealed structure according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of a piercing cone assembly in accordance with a preferred embodiment of the present invention;

FIG. 3 is a schematic structural view of a sheath cap assembly in a preferred embodiment of the present invention;

FIG. 4 is a schematic structural view of a spike assembly in accordance with a preferred embodiment of the present invention;

FIG. 5 is a cross-sectional and partially enlarged view of the spike assembly in a preferred embodiment of the present invention.

Reference numerals: 16. a puncture cone assembly; 1. a fixed cover; 2. a fixing ring; 3. puncturing the core; 17. a sheath cap assembly; 4. a first upper cover; 5. a second upper cover; 6. a protective sheet; 7. a seal ring; 8. a first lower cover; 9. a second lower cover; 18. a puncture tube assembly; 10. a sleeve upper cover; 101. a hook is clamped; 102. a square groove; 103. a passage hole; 11. opening and closing a valve; 111. an annular hook; 112. a groove; 113. a circular through hole; 12. a channel valve; 121. a step surface; 122. a seal ring; 13. a soft rubber sleeve; 131. sealing the ribs; 132. a circular through hole; 14. a lower cover of the sleeve; 141. buckling; 15. a puncture tube; 151. a valve passage; 152. a stepped bore.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1-5, in a preferred embodiment of the present invention, a laparoscopic puncture instrument with a sealed structure comprises a puncture cone assembly 16, a sheath cap assembly 17 and a puncture tube assembly 18, wherein puncture channels communicated with each other are arranged inside the sheath cap assembly 17 and the puncture tube assembly 18, and the sheath cap assembly 17 and the puncture tube assembly 18 are tightly connected through a catching assembly; the puncture cone assembly 16 penetrates through the puncture channel and moves up and down in the puncture channel, so that the operation of a doctor is facilitated.

As a preferred embodiment of the present invention, it may also have the following additional technical features: the puncture cone assembly 16 comprises a fixed cover 1, a fixed ring 2 and a puncture core 3, wherein the fixed ring 2 is arranged at the top of the puncture core 3, and the puncture core 3 is connected with the fixed cover 1 through a clamping hook.

In this embodiment, the sheath cap assembly 17 includes a first upper cover 4, a second upper cover 5, a protection sheet 6, a sealing ring 7, a first lower cover 8, and a second lower cover 9, wherein the second upper cover 5, the protection sheet 6, and the first lower cover 8 are in interference fit with each other, and are in interference fit with the fixing ring 2; the sealing ring 7 is made of soft rubber and is arranged on the second lower cover 9, and the second lower cover 9 is tightly combined with the first upper cover 4 through ultrasonic welding.

In this embodiment, the puncture tube assembly 18 comprises a casing upper cover 10, a valve switch 11, a channel valve 12, a soft rubber sleeve 13, a casing lower cover 14 and a puncture tube 15, wherein,

the periphery of the inner side of the sleeve lower cover 14 is provided with a buckle 141, the top of the sleeve lower cover is a horn-shaped opening, and the bottom of the sleeve lower cover is provided with a through hole;

a valve passage 151 is arranged on the casing of the puncture tube 15, a step hole 152 is arranged in the valve passage 151, and the step hole 152 is arranged in the casing lower cover 14;

the soft rubber sleeve 13 is made into a hollow cylinder by adopting a soft rubber material, the middle part of the cylindrical soft rubber sleeve 13 is provided with a circular through hole 132 matched with the circular through hole 113 of the valve switch 11, the surface of the cylindrical soft rubber sleeve is provided with four sealing ribs 131 which protrude to be matched with the valve channel 151 of the puncture tube 15, and the elastic deformation characteristic of the soft rubber is realized to be tightly wrapped in the groove 112 of the valve switch 11;

the bottom of the valve switch 11 is provided with an annular clamping hook 111, the middle of the valve switch 11 is provided with a groove 112 and a circular through hole 113, and the soft rubber sleeve 13 is tightly wrapped on the groove 112 of the valve switch 11; the annular clamping hook 111 is movably connected with the stepped hole 152 on the puncture tube 15, is wrapped in the soft rubber sleeve 13, and is in interference fit with the valve channel 151 of the puncture tube 15, so that the axial leakage of air flow along the valve is effectively prevented, and the valve switch 11 can be shifted to rotate by 0-90 degrees, so that the functions of air circulation and air stopping in the channel are realized;

the channel valve 12 is arranged at the top of the puncture tube 15, a sealing ring 122 is arranged at the top of the channel valve 12, and a step surface 121 is arranged on the periphery of the channel valve;

the bottom of the sleeve upper cover 10 is provided with six symmetrically distributed square grooves 102, the middle part is provided with a channel hole 103, and the top is provided with three uniformly distributed rotary clamping hooks 101; one end of the sleeve upper cover 10 is arranged in the sleeve lower cover 14 and is tightly combined with a buckle 141 of the sleeve lower cover 14 by compressing the step surface 121 of the channel valve 12; the other end is tightly connected with the second lower cover 9 in the sheath cap assembly 17 through the rotary hook 101, and at the same time, the sealing ring 122 on the channel valve 12 is compressed, so that a closed channel is formed inside the puncture outfit. The puncture outfit has excellent air tightness, good safety, high production efficiency and low cost.

The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a peritoneal puncture ware with seal structure which characterized in that: the puncture device comprises a puncture cone assembly (16), a sheath cap assembly (17) and a puncture tube assembly (18), wherein puncture channels which are communicated with each other are arranged inside the sheath cap assembly (17) and the puncture tube assembly (18), and the sheath cap assembly (17) and the puncture tube assembly (18) are tightly connected through a buckling assembly; the puncture cone assembly (16) penetrates through the puncture channel and moves up and down in the puncture channel;

the puncture cone assembly (16) comprises a fixed cover (1), a fixed ring (2) and a puncture core (3), the fixed ring (2) is arranged at the top of the puncture core (3), and the puncture core (3) is connected with the fixed cover (1) through a clamping hook;

the sheath cap assembly (17) comprises a first upper cover (4), a second upper cover (5), a protection sheet (6), a sealing ring (7), a first lower cover (8) and a second lower cover (9), wherein the second upper cover (5), the protection sheet (6) and the first lower cover (8) are in interference fit with each other and are in interference fit with the fixing ring (2); the sealing ring (7) is arranged on the second lower cover (9), and the second lower cover (9) is tightly combined with the first upper cover (4) through ultrasonic welding.

2. The laparoscopic puncture instrument with a sealed structure according to claim 1, wherein: the sealing ring (7) is made of soft rubber material.

3. The laparoscopic puncture instrument with a sealed structure according to claim 1, wherein: the puncture tube assembly (18) comprises a sleeve upper cover (10), a valve switch (11), a channel valve (12), a soft rubber sleeve (13), a sleeve lower cover (14) and a puncture tube (15), wherein,

the periphery of the inner side of the sleeve lower cover (14) is provided with a buckle (141);

a valve passage (151) is arranged on the sleeve of the puncture tube (15), a step hole (152) is arranged in the valve passage (151), and the step hole (152) is arranged in the sleeve lower cover (14);

an annular clamping hook (111) is arranged at the bottom of the valve switch (11), the annular clamping hook (111) is movably connected with a step hole (152) on the puncture tube (15), is wrapped in the soft rubber sleeve (13), and is in interference fit with a valve channel (151) of the puncture tube (15);

the channel valve (12) is arranged at the top of the puncture tube (15), a sealing ring (122) is arranged at the top of the channel valve (12), and step surfaces (121) are arranged on the periphery of the channel valve;

one end of the sleeve upper cover (10) is arranged in the sleeve lower cover (14) and is tightly combined with a buckle (141) of the sleeve lower cover (14) by compressing a step surface (121) of the channel valve (12); the other end of the sleeve is tightly connected with a second lower cover (9) in the sheath cap component (17) through a rotary clamping hook (101) arranged at the top of the sleeve upper cover (10).

4. The laparoscopic puncture instrument with a sealed structure according to claim 3, wherein: the top of the sleeve lower cover (14) is a horn-shaped opening, and a through hole is formed in the bottom of the sleeve lower cover.

5. The laparoscopic puncture instrument with a sealed structure according to claim 3, wherein: the middle part of the valve switch (11) is provided with a groove (112) and a circular through hole (113), and the soft rubber sleeve (13) is tightly wrapped on the groove (112) of the valve switch (11).

6. The laparoscopic puncture instrument with a sealed structure according to claim 5, wherein: the soft rubber sleeve (13) is made of soft rubber materials and is in a hollow cylindrical shape, the middle of the soft rubber sleeve (13) is provided with a circular through hole (132) matched with the circular through hole (113) of the valve switch (11), and the surface of the soft rubber sleeve is provided with four sealing ribs (131) matched with the valve channel (151) of the puncture tube (15) in a protruding manner.

7. The laparoscopic puncture instrument with a sealed structure according to claim 3, wherein: the rotary clamping hooks (101) are three and evenly distributed at the top of the sleeve upper cover (10).

8. The laparoscopic puncture instrument with a sealed structure according to claim 3, wherein: six square grooves (102) which are symmetrically distributed are arranged at the bottom of the sleeve upper cover (10), and a channel hole (103) is arranged in the middle of the sleeve upper cover.