CN109259826B - Puncture outfit with high sealing performance - Google Patents
Puncture outfit with high sealing performance Download PDFInfo
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- CN109259826B CN109259826B CN201810948776.4A CN201810948776A CN109259826B CN 109259826 B CN109259826 B CN 109259826B CN 201810948776 A CN201810948776 A CN 201810948776A CN 109259826 B CN109259826 B CN 109259826B
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- silica gel
- valve
- sealing
- seat
- piece
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- 238000007789 sealing Methods 0.000 title claims abstract description 117
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000000741 silica gel Substances 0.000 claims abstract description 119
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 119
- 238000005452 bending Methods 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 1
- 206010066054 Dysmorphism Diseases 0.000 abstract description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 14
- 229920001296 polysiloxane Polymers 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 6
- 210000001015 abdomen Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000003815 abdominal wall Anatomy 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000001835 viscera Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3419—Sealing means between cannula and body
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a puncture outfit with high sealing performance, which comprises a guide tube assembly, a main body assembly and an air valve, wherein the main body assembly and the air valve are arranged on a guide pipe fitting; the main body assembly comprises an elastic sealing piece, wherein the elastic sealing piece comprises an elastic sealing seat and a round hole sealing piece arranged on the elastic sealing seat; the middle part of the elastic sealing seat is provided with a bending part; the round hole sealing piece comprises a conical silica gel piece, the conical silica gel piece is provided with a round hole, and the round hole is opposite to the guide tube assembly. The invention of this application sets up through the kink of elasticity silica gel spare for elasticity silica gel spare can provide elasticity assistance for toper silica gel spare, avoids dysmorphism surgical instrument to produce deformation when passing through the round hole, causes card to be dund or the gas leakage phenomenon.
Description
Technical Field
The invention relates to the technical field of consumable medical instruments, in particular to a puncture outfit with high sealing performance.
Background
A puncture outfit is a surgical instrument which punctures the abdominal wall and is used as a laparoscopic or other surgical instrument channel, and belongs to a minimally invasive surgical instrument. The penetrator typically includes a guide tube assembly for access to other surgical instruments and a penetrating blade extending through the guide tube assembly; in the abdominal cavity operation process, because the normal abdominal cavity is free of space, carbon dioxide gas is infused into the abdominal cavity, so that the abdominal wall and the abdominal viscera are separated to form a proper operation space; then, a skin incision is made at a proper position of the abdomen by using a scalpel, the puncture scalpel penetrates the skin and enters the abdominal cavity, then the bottom end of the puncture outfit is pressed until the puncture outfit enters the abdominal cavity, the puncture scalpel is taken out, and the guide tube assembly can be used as a working channel of other surgical machines, such as a laparoscope. Because of the variety of the appearance of the surgical instruments, the guide tube assembly serving as a channel must fully ensure the air tightness of the guide tube assembly, prevent air leakage when the surgical instruments are inserted or taken out, maintain the pressure stabilizing system in the abdominal cavity, and simultaneously facilitate the smooth in-out and out-in pipelines of other surgical instruments without blocking. In the prior art, as the disposable puncture outfit disclosed in the patent application number CN201010193536.1, when the surgical instrument enters the guide tube, the elastic sealing cap is easy to deform to cause clamping or air leakage when the special-shaped surgical instrument moves out of the guide tube.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a puncture outfit with high sealing performance.
The invention discloses a puncture outfit with high sealing performance, which comprises a guide tube assembly, a main body assembly and an air valve, wherein the main body assembly and the air valve are arranged on the guide tube assembly; the main body assembly comprises a main shell and an elastic sealing piece arranged in the main shell; the main shell is arranged on the guide tube assembly; the elastic sealing piece comprises an elastic sealing seat and a round hole sealing piece; the elastic sealing seat comprises an inner seat ring, an elastic silica gel piece and an outer ring shell; the elastic silica gel piece is arranged outside the inner seat ring in a surrounding manner, the outer ring shell is arranged outside the elastic silica gel piece in a surrounding manner, and the middle part of the elastic silica gel piece is provided with a bending part; the round hole sealing piece comprises a conical silica gel piece and an annular part; a round hole is formed in the top end of the conical silica gel piece, and the top end of the conical silica gel piece is opposite to the guide tube assembly; the annular part is annularly arranged at the bottom end of the conical silica gel piece; the annular part is correspondingly arranged on the inner ring seat.
According to an embodiment of the invention, the elastic sealing member further comprises a blade member; the fan blade piece comprises a fan blade and a fan blade fixing part; the top ends of the fan blades are provided with fan blade openings; the fan blade fixing part is arranged at the bottom end of the fan blade in a surrounding way; the fan blades are correspondingly arranged on the elastic silica gel piece; the fan blade opening is opposite to the round hole; the fan blade fixing part is connected with the annular part.
According to one embodiment of the invention, the wall thickness of the conical silicone part near the round hole is smaller than the wall thickness of the conical silicone part far away from the rest of the round hole.
According to one embodiment of the invention, the wall thickness of the elastic silicone part is smaller than the wall thickness of the conical silicone part.
According to an embodiment of the present invention, the guide tube assembly includes a guide tube and a gas blocking seal; the guide pipe fitting comprises a guide pipe and a guide pipe base arranged at the bottom end of the guide pipe; the catheter base is communicated with the catheter; the air blocking sealing element comprises a one-way air blocking valve and a valve fixing seat; the bottom end of the one-way choke valve is arranged on the valve fixing seat; the valve fixing seat is arranged in the catheter base, and the top end of the one-way choke valve is opposite to the catheter; the top end of the unidirectional choke valve, which is opposite to the conduit, is provided with a cross-shaped sealing port.
According to one embodiment of the invention, the top end of the one-way choke valve is a plane, and the cross-shaped sealing opening is arranged on the top end plane of the one-way choke valve; four grooves are formed in the side wall of the one-way choke valve; the four grooves are sequentially arranged along the peripheral direction of the side wall of the unidirectional choke valve, and the four grooves are respectively opposite to the four ends of the cross-shaped sealing port.
According to one embodiment of the present invention, the width and depth of each groove gradually increase along the direction from the bottom end of the one-way choke valve to the top end of the one-way choke valve.
According to one embodiment of the invention, the side wall of the conical silica gel piece is provided with a plurality of reinforcing ribs; the reinforcing ribs are sequentially arranged at intervals along the circumferential direction of the circular cross section of the conical silica gel piece, and two ends of each reinforcing rib are respectively opposite to the round hole and the annular part.
According to an embodiment of the invention, the elastic sealing member further comprises a sealing fixing member; the sealing fixing piece comprises a sealing fixing upper cover, a sealing fixing lower cover and a positioning ring; the sealing fixed upper cover is provided with a plurality of clamping columns; the sealing fixed lower cover is provided with a plurality of clamping grooves; the clamping grooves are in one-to-one correspondence with the clamping columns; the positioning ring is positioned between the annular part and the fan blade fixing part;
the clamping columns of the upper sealing and fixing cover sequentially penetrate through the fan blade fixing part, the positioning ring, the annular part and the inner seat ring and then are clamped with the clamping grooves of the lower sealing and fixing cover.
According to one embodiment of the invention, the bottom end of the valve fixing seat is provided with a valve clamping groove in a ring manner;
the valve fixing seat comprises a valve fixing upper seat and a valve fixing lower seat; the valve fixing upper seat is sleeved outside the bottom end of the valve fixing seat, the inner wall of the valve fixing upper seat is provided with a clamping table, and the clamping table is clamped in the valve clamping groove; the outer wall of the valve fixing upper seat is provided with a first rotary fastener; the valve fixing lower seat is pressed on the outer wall of the valve clamping groove and is attached to the inner wall of the valve fixing seat;
one end of the main shell, which is opposite to the catheter base, is provided with a second rotary fastener which is matched with the first rotary fastener; the second rotary fastener is buckled with the first rotary fastener.
The puncture outfit of high leakproofness of this application sets up through the kink of elasticity silica gel spare for elasticity silica gel spare can provide elasticity for toper silica gel spare and assist, and toper silica gel spare produces deformation when avoiding dysmorphism surgical instrument to pass through the round hole, causes card to be dund or the gas leakage phenomenon.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic view of a puncture outfit with high sealing performance in the present embodiment;
FIG. 2 is a schematic view of the structure of the piercing knife according to the present embodiment;
FIG. 3 is an exploded view of the puncture outfit with high sealing performance in the present embodiment;
FIG. 4 is a schematic view of the guiding tube assembly in the present embodiment;
FIG. 5 is a cross-sectional view of the puncture instrument with high sealability in the present embodiment;
fig. 6 is a schematic diagram of a portion a in fig. 5 in the present embodiment;
FIG. 7 is a schematic structural view of the elastic sealing seat in the present embodiment;
FIG. 8 is a cross-sectional view of the elastomeric seal housing in this embodiment;
FIG. 9 is a schematic view of the circular hole seal in this embodiment;
fig. 10 is a cross-sectional view of the circular hole seal in this embodiment.
Reference numerals illustrate:
1. a guide tube assembly; 11. a guide tube; 111. a conduit; 112. a catheter base; 1121. an air valve communicating pipe; 12. a gas-blocking seal; 121. a one-way choke valve; 1211. a cross-shaped sealing port; 1212. a groove; 1213. a valve clamping groove; 122. a valve holder; 1221. a valve fixed upper seat; 12211. a clamping table; 12212. a first rotational fastener; 122121, a rotary table; 122122, rotation position; 122123, a first rotary buckle; 1222. a valve fixed lower seat; 2. a body assembly; 21. a main housing; 211. a second rotational fastener; 2111. a second rotary buckle; 212. a through hole; 213. a seal ring; 22. an elastic seal; 221. an elastic sealing seat; 2211. an inner seat ring; 22111. a first fitting hole; 2212. an elastic silica gel piece; 22121. a bending part; 2213. an outer annular shell; 222. a circular hole sealing member; 2221. a conical silica gel piece; 22211. a round hole; 22212. reinforcing ribs; 2222. an annular portion; 22221. a second fitting hole; 223. a fan blade member; 2231. fan blades; 22311. a fan blade opening; 2232. a fan blade fixing part; 22321. a third fitting hole; 224. a sealing fixture; 2241. sealing and fixing the upper cover; 22411. a clamping column; 2242. sealing and fixing the lower cover; 22421. a clamping groove; 2243. a positioning ring; 22431. a fourth fitting hole; 23. a main body fixing cover; 231. a first loop column; 232. a second loop column; 3. an air valve; 4. a puncture knife.
Detailed Description
Various embodiments of the invention are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
It should be noted that all directional indicators such as up, down, left, right, front, and rear.
Furthermore, descriptions such as those related to "first," "second," and the like, are provided for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical language and are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first", "a second" may include at least one such feature, either explicitly or implicitly. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1 to 10, fig. 1 is a schematic structural view of a puncture outfit with high sealing performance in the present embodiment, fig. 2 is a schematic structural view of a puncture knife with high sealing performance in the present embodiment, fig. 3 is an exploded structural view of a puncture outfit with high sealing performance in the present embodiment, fig. 4 is a schematic structural view of a guiding tube assembly in the present embodiment, fig. 5 is a sectional view of a puncture outfit with high sealing performance in the present embodiment, fig. 6 is a schematic structural view of a portion a in the present embodiment, fig. 7 is a schematic structural view of an elastic sealing seat in the present embodiment, fig. 8 is a sectional view of an elastic sealing seat in the present embodiment, fig. 9 is a schematic structural view of a circular hole sealing member in the present embodiment, and fig. 10 is a sectional view of a circular hole sealing member in the present embodiment. The puncture outfit with high sealing performance in the embodiment comprises a guide tube assembly 1, a main body assembly 2, an air valve 3 and a puncture knife 4. The puncture knife 4 is provided with three types of puncture knives, namely an automatic type puncture knife, a visual type puncture knife and a knife-free type puncture knife, and penetrates through the guide tube assembly 1 and the main body assembly 2 for puncturing the skin of the abdomen during operation, so that the guide tube assembly 1 is inserted into the abdomen, then the puncture knife 4 is pulled out, and a penetrating channel of the guide tube assembly 1 and the main body assembly 2 is a working channel of a surgical instrument during subsequent operation.
The guide tube assembly 1 comprises a guide tube member 11 and a gas blocking seal 12. The guide tube 11 includes a tube 111 and a tube base 112. The catheter 111 is used for the penetration of the puncture knife 4 and the surgical instrument; the tip of the catheter 111 has an inclined surface so that the tip of the catheter 111 is wedge-shaped, facilitating incision of the catheter 111 through the skin during surgery; the outer wall of the catheter 111 is provided with spiral lines, and after the catheter 111 enters the abdominal cavity of a human body, the spiral lines of the outer wall of the catheter 111 can be matched with the skin at the skin incision, so that the gas in the abdominal cavity is prevented from leaking out from the abdominal cavity at the skin incision. The catheter base 112 is arranged at the bottom end of the catheter 111, the end part of the catheter base 112 is connected with the top end of the catheter 111, and the interior of the catheter base 112 is communicated with the interior of the catheter 111; the duct base 112 is provided with an air valve communicating tube 1121, and the air valve communicating tube 1121 is vertically provided on an outer wall of the duct base 112 and communicates with an inside of the duct base 112. The catheter 111 and the catheter base 112 may be integrally formed. Specifically, the catheter base 112 may be in the shape of a bowl, a cup, or a cylinder.
The choke seal 12 is disposed in the catheter base 112 and includes a one-way choke valve 121 and a valve holder 122. The unidirectional choke valve 121 is cylindrical, such as a cylinder, a square cylinder, etc., and the bottom surface of the unidirectional choke valve 121 is a plane; the bottom surface of the unidirectional choke valve 121 is opposite to the hollow part of the catheter 111, and a cross-shaped sealing opening 1211 is formed in the bottom surface of the unidirectional choke valve 121, specifically, the puncture knife 4 and the surgical instrument enter the catheter 111 through the cross-shaped sealing opening 1211, and when the unidirectional choke valve 121 is arranged, the cross center point of the cross-shaped sealing opening 1211 corresponds to the cylindrical central axis of the catheter 111, so that the puncture knife 4 and the surgical instrument can smoothly enter and exit. The side wall of the unidirectional choke valve 121 is provided with four grooves 1212, the four grooves 1212 are sequentially arranged along the peripheral direction of the side wall of the unidirectional choke valve 121, the four grooves 1212 are respectively opposite to the four ends of the cross-shaped sealing port 1211, in another embodiment, the four grooves 1212 are respectively opposite to the four included angles of the cross-shaped sealing port 1211, and the grooves 1212 can be specifically arc-shaped grooves; the air pressure inside the abdominal cavity enters the duct base 112 through the duct 111, and the air pressure inside the duct base 112 acts on the four grooves 1212 and presses the cross-shaped sealing port 1211 so that the cross-shaped sealing port 1211 is tightly closed, so that the air does not flow back through the one-way choke valve 121. In this embodiment, each groove 1212 gradually increases in width along the direction from the top opening of the unidirectional choke valve 121 to the bottom surface of the unidirectional choke valve 121, and the depth of the groove 1212 gradually deepens, specifically, the gas surrounds the circumference of the unidirectional choke valve 121 to squeeze the side wall of the unidirectional choke valve 121, the greater the width and the deeper the depth of the groove 1212, the more the gas is carried on the inner surface of the groove, the greater the pressure of the gas is received, and the ends of the four grooves 1212, which are subjected to the greater squeezing force of the gas, respectively surround the circumference of the cross-shaped sealing opening 1211, so that the pressure received by the cross-shaped sealing opening 1211 is greater, and thus the tightness of the cross-shaped sealing opening 1211 is higher, and the tightness of the unidirectional choke valve 121 is further increased. The periphery of the top opening of the unidirectional choke valve 121 is provided with a valve clamping groove 1213 in a surrounding manner, the valve clamping groove 1213 is perpendicular to the central axis of the unidirectional choke valve 121, and the notch of the valve clamping groove 1213 faces away from the unidirectional choke valve 121.
The valve mount 122 includes a valve mount upper mount 1221 and a valve mount lower mount 1222. The valve fixing upper seat 1221 is an approximately annular housing, and the size and shape of the inner wall thereof are adapted to the size and shape of the top opening of the one-way choke valve 121. The valve fixing upper seat 1221 is provided with a clamping table 12211 along its inner wall, the size and shape of the clamping table 12211 are adapted to those of the valve clamping groove 1213, and the clamping table 12211 is correspondingly clamped in the valve clamping groove 1213, so that the valve fixing upper seat 1221 is clamped at the opening of the unidirectional choke valve 121. The outer wall of the valve fixing upper seat 1221 is provided with a first rotating fastener 12212, the first rotating fastener 12212 comprises a rotary table 122121, a rotating position 122122 and a first rotating fastener 122123, specifically, the rotary table 122121 is in a step shape formed by recessing the outer wall of the valve fixing upper seat 1221 towards the inner wall of the valve fixing upper seat 1221, the first rotating fastener 122123 is arranged at the top end of the step of the rotary table 122121 and is perpendicular to the central axis of the valve fixing upper seat 1221, a clamping space is formed between the first rotating fastener 122123 and the step of the rotary table 122121, the rotating position 122122 is arranged at the top end of the step of the rotary table 122121 and is located at the side edge of the first rotating fastener 122123, the rotating position 122122 is specifically a vacancy notch, namely, the top end of the step of the rotary table 122121 is not provided with the rest part of the first rotating fastener 122123, and the number of the first rotating fasteners 12212 in the embodiment is two, and the two first rotating fasteners 12212 are respectively arranged at two opposite sides of the outer wall of the valve fixing upper seat 1221. The valve fixing lower base 1222 has a circular ring shape, and its bottom end is pressed against the outer wall of the valve locking groove 1213, and its outer wall is attached to the rotary table 122121. The clamping table 12211, the valve clamping groove 1213 and the valve fixing lower seat 1222 are fixed by ultrasonic welding; the outer wall of the valve fixing upper seat 1221 is fixed to the inner wall of the duct base 112 by ultrasonic welding so that the guide pipe 11 and the choke seal 12 are formed as a single body and it is ensured that the gas of the duct base 112 does not flow through a place other than the one-way choke valve 121.
The main body assembly 2 is disposed at the bottom end of the catheter base 112, and includes a main housing 21, an elastic sealing member 22, and a main body fixing cover 23. The main casing 21 is approximately cup-shaped, and the bottom surface of the main casing 21 is a plane; the size and shape of the bottom periphery of the main casing 21 are matched with those of the opening of the catheter base 112, and the main casing 21 is correspondingly arranged on the opening of the catheter base 112 and is attached to the opening. The bottom surface of the main housing 21 is provided with a second rotation catch 211, a through hole 212 and a sealing ring 213; the second rotating fastening members 211 include second rotating fastening members 2111, the second rotating fastening members 2111 are approximately bent, the size and shape of the second rotating fastening members 2111 are matched with the size and shape of the clamping space between the first rotating fastening members 122123 and the step of the rotating table 122121, and the volume of the second rotating fastening members 2111 is smaller than that of the rotating position 122122, so that the second rotating fastening members 2111 can pass through the rotating position 122122, the number of the second rotating fastening members 211 in this embodiment is two, and the two second rotating fastening members 211 correspond to the two first rotating fastening members 12212 respectively. When the main housing 21 is assembled with the valve fixing upper seat 1221, the second swivel buckle 2111 is first turned into the swivel position 122122, and then the second swivel buckle 2111 is turned to be clamped in a clamping space formed between the first swivel buckle 122123 and the step of the turntable 122121, thereby completing the swivel buckle. The through hole 212 is arranged in the middle of the bottom surface of the main shell 21 and is opposite to the top opening of the unidirectional choke valve 121, and the size and shape of the through hole 212 are matched with those of the top opening of the unidirectional choke valve 121; the sealing ring 213 is arranged in the through hole 212 in a surrounding manner and is perpendicular to the bottom surface of the main shell 21, the top end of the sealing ring 213 is attached to the inner wall of the cylinder mouth of the one-way choke valve 121, and the sealing ring 213 prevents gas entering the main shell 21 from leaking.
The elastic sealing member 22 is disposed in the main housing 21, and includes an elastic sealing seat 221, a circular hole sealing member 222, a fan blade member 223, and a sealing fixing member 224; the elastic sealing seat 221 comprises an inner seat ring 2211, an elastic silica gel member 2212 and an outer ring shell 2213; the inner seat ring 2211 is in a ring shape, and is provided with a plurality of first assembly holes 22111 along the circumferential direction of the inner seat ring; the elastic silica gel member 2212 is arranged outside the inner seat ring 2211 in a surrounding manner, the middle part of the ring of the elastic silica gel member 2212 is provided with a bending part 22121, the bending part 22121 is U-shaped, two continuous bending parts 22121 in the embodiment are continuous, the two continuous bending parts 22121 form a wavy shape, the outer ring shell 2213 is arranged outside the elastic silica gel member 2212 in a surrounding manner, the elastic silica gel member 2212 is made of silica gel material, and has high elasticity, and in addition, the wavy arrangement of the bending part 22121 further increases the overall elasticity of the elastic silica gel member 2212.
The circular hole seal 222 includes a tapered silicone member 2221 and an annular portion 2222; the conical silica gel piece 2221 is conical, and a round hole 22211 is formed in the top end of the conical silica gel piece; the annular part 2222 is arranged at the bottom end of the conical silica gel piece 2221 in a surrounding manner, and a plurality of second assembly holes 22221 are formed in the annular part 2222 along the circumferential direction of the annular part; the plurality of second fitting holes 22221 are in one-to-one correspondence with the plurality of first fitting holes 22111; the conical silica gel piece 2221 is made of silica gel material, has larger thickness and good elasticity, and can tightly cover the surgical instrument when the surgical instrument passes through the round hole 22211, thereby avoiding air leakage. The annular portion 2222 is disposed on the inner ring seat 2211, the plurality of second assembly holes 22221 are opposite to the plurality of first assembly holes 22111 one by one, and the top end of the conical silica gel member 2221 provided with the round hole 22211 is opposite to the through hole 212.
The blade member 223 includes a blade 2231 and a blade fixing portion 2232; the fan blade 2231 is conical, and the top end of the fan blade has a fan blade opening 22311; the fan blade fixing portion 2232 is annularly arranged at the bottom end of the fan blade 2231, and the fan blade fixing portion 2232 is provided with a plurality of third assembly holes 22321 along the peripheral direction of the fan blade fixing portion; the plurality of third fitting holes 22321 are in one-to-one correspondence with the plurality of first fitting holes 22111; the fan blade 2231 is correspondingly arranged in the conical surface of the conical silica gel piece 2221, and the fan blade opening 22311 is opposite to the round hole 22211. When a surgical instrument passes through, the fan blades 2231 can play a role in guiding and protecting the conical silica gel piece 2221, especially when a sharper surgical instrument passes through the round holes 22211 of the conical silica gel piece 2221, the force of the surgical instrument can act on the fan blades 2231 and can not hurt the conical silica gel piece 2221, and then under the guiding action of the fan blades 2231, the surgical instrument can smoothly pass through the round holes 22211 through the fan blade openings 22311, and particularly, the fan blades 2231 can be made of soft materials with lubricating properties, such as TPU materials. The fan fixing portion 2232 is disposed on the annular portion 2222, and the plurality of third assembling holes 22321 are opposite to the plurality of first assembling holes 22111.
The seal fixture 224 includes a seal fixture upper cover 2241, a seal fixture lower cover 2242, and a retaining ring 2243; the sealing and fixing upper cover 2241 is provided with a plurality of clamping columns 22411, and the plurality of clamping columns 22411 are in one-to-one correspondence with the plurality of first assembly holes 22111; the sealing and fixing lower cover 2242 is provided with a plurality of clamping grooves 22421, and the clamping grooves 22421 correspond to the clamping columns 22411 one by one; the positioning ring 2243 is located between the annular portion 2222 and the fan blade fixing portion 2232, and the positioning ring 2243 is provided with a plurality of fourth assembly holes 22431 along the direction of the positioning ring 2243, and the fourth assembly holes 22431 are in one-to-one correspondence with the first assembly holes 22111; the plurality of clamping posts 22411 of the sealing and fixing upper cover 2241 sequentially pass through the plurality of third assembly holes 22321 of the fan blade fixing portion 2232, the plurality of fourth assembly holes 22431 of the positioning ring 2243, the plurality of second assembly holes 22221 of the annular portion 2222, and the plurality of first assembly holes 22111 of the inner seat ring 2211 and then are clamped with the plurality of clamping grooves 22421, so that the fan blade member 223, the circular hole sealing member 222 and the elastic sealing seat 221 are connected, and in particular implementation, the sealing and fixing upper cover 2241, the fan blade fixing portion 2232, the positioning ring 2243, the annular portion 2222 and the inner seat ring 2211 can be welded together by ultrasonic waves, so that the fan blade member 223, the circular hole sealing member 222 and the elastic sealing seat 221 form a stable whole.
The main body fixing cover 23 is covered on the main housing 21, and one surface of the main body fixing cover, which faces the main housing 21, is provided with a first annular column 231 and a second annular column 232, the first annular column 231 is opposite to the U-shaped bending part 22121 which is clamped into the elastic silica gel member 2212 and is close to the outer side, and the second annular column 232 is opposite to the sealing fixing upper cover 2241 in a pressing manner, so that the elastic sealing member 22 can be further fixed through the main body fixing cover 23.
The air valve 3 is arranged on the side wall of the catheter base 112 and is communicated with the inside of the catheter base 112, specifically, the air valve 3 is communicated with the catheter base 112 through the air valve communicating pipe 1121, gas enters the puncture outfit through the air valve 3 and the air valve communicating pipe 1121, the air valve 3 controls the gas to be communicated with the puncture outfit, so that the gas in the abdominal cavity is conveniently discharged or poured in, and the gas can be specifically carbon dioxide gas.
Referring back to fig. 3-10, further, a plurality of reinforcing ribs 22212 are provided on the side wall of the tapered silica gel piece 2221; the plurality of reinforcing ribs 22212 are sequentially arranged at intervals along the circumferential direction of the circular cross section of the tapered silica gel member 2221, and two ends of each reinforcing rib 22212 are respectively opposite to the round hole 22211 and the annular portion 2222. The arrangement of the reinforcing ribs 22212 further increases the sealing acting force of the tapered silica gel piece 2221 on the surgical instrument, so as to ensure the tightness of the tapered silica gel piece 2221 when the surgical instrument passes through. The wall thickness of the portion of the tapered silica gel piece 2221 close to the round hole 22211 is smaller than the wall thickness of the rest of the tapered silica gel piece 2221 far away from the round hole 22211. The wall thickness of the conical silica gel piece 2221 is smaller near the round hole 22211, so that the surgical instrument can be smoother when passing through the round hole 22211, the wall thickness near the round hole 22211 is smaller, more air pressure can act on the part of the conical silica gel piece 2221 near the round hole 22211, the extrusion acting force of the conical silica gel piece 2221 at the round hole 22211 when passing through the surgical instrument is increased instead, and the tightness of the conical silica gel piece 2221 is further increased. The wall thickness of the elastic silica gel member 2212 is smaller than that of the conical silica gel member 2221, when the elastic silica gel member 2212 is subjected to the action of external force, the deformation of the elastic silica gel member 2212 is larger than that of the conical silica gel member 2221, that is, when a surgical instrument passes through the conical silica gel member 2221, acting force is generated on the conical silica gel member 2221, so that the conical silica gel member 2221 moves along with the surgical instrument, but because the wall thickness of the elastic silica gel member 2212 is thinner, the acting force of the mobile phone instrument can be transferred to the elastic silica gel member 2212, so that the elastic silica gel member 2212 deforms, most of the acting force when the surgical instrument passes through can be counteracted by the deformation of the elastic silica gel member 2212, the acting force received by the conical silica gel member 2221 is small, the deformation of the conical silica gel member 2221 can be reduced, the deformation of the conical silica gel member 2221 can be weakened, the surgical instrument can smoothly pass through the conical silica gel member 2221, the clamping can not be caused, the deformation can not be generated, the tightness of the surgical instrument can be weakened, and the air leakage phenomenon can be generated. In particular implementations, the wall thickness of the elastic silicone member 2212 is one-fourth to one-half of the wall thickness of the shaped silicone member 2221, and preferably, the wall thickness of the elastic silicone member 2212 is one-third of the wall thickness of the shaped silicone member 2221.
The specific operation procedure in this embodiment is as follows: during operation, carbon dioxide gas is injected into the abdominal cavity to separate the abdominal wall from the abdominal viscera, so as to form a proper operation space; then, a skin incision is formed at a proper position of the abdomen of the surgical knife, then the puncture outfit is quickly inserted into the incision, at the moment, the bottom end of the puncture outfit is pressed, the puncture knife 4 is inserted along the skin incision, the catheter 111 is driven to enter the abdominal cavity until the external threads of the catheter 111 are attached to the skin incision, and then the puncture knife 4 is taken out, so that a working channel through which surgical instruments pass is reserved. After the puncture knife 4 is taken out, the air pressure in the catheter base 112 acts on the four grooves 1212 and presses the cross-shaped sealing port 1211, so that the cross-shaped sealing port 1211 is closed, and the air leakage inside the abdominal cavity is avoided. When the surgical instrument is inserted, the surgical instrument firstly passes through the fan blade opening 22311 and then passes through the round hole 22211 of the conical silica gel piece 2221, at this time, the conical silica gel piece 2221 is coated outside the surgical instrument to form a sealing state, and when the surgical instrument passes through the cross-shaped sealing opening 1211, gas enters the puncture outfit through the one-way choke valve 121, but the gas cannot leak under the sealing of the conical silica gel piece 2221, and the conical silica gel piece 2221 is used as a sealing piece; thus, a closed air pressure system can be formed by the unidirectional choke valve 121 and the conical silica gel member 2221, and the leakage of air is avoided in the whole operation process. When the surgical instrument is withdrawn, the surgical instrument sequentially passes through the cross-shaped sealing port 1211 and the conical silica gel piece 2221, and the conical silica gel piece 2221 and the cross-shaped sealing port 1211 of the unidirectional choke valve 121 form a sealing system of the puncture outfit, so that no air leakage occurs in the whole process. Compared with the straight-shaped opening structure disclosed in CN201010193536.1, the cross-shaped sealing opening 1211 is small in opening when a surgical instrument passes through, is stronger in sealing performance and easier to open, even if the surgical instrument with a hook-shaped structure also passes through the cross-shaped sealing opening 1211 easily, the clamping phenomenon can not be caused, moreover, the bending part 22121 of the elastic silica gel member 2212 enables the conical silica gel member 2221 to move more smoothly, the clamping and deformation of the conical silica gel member 2221 caused when the special-shaped surgical instrument passes through the round hole 22211 of the conical silica gel member 2221 are avoided, and the hidden danger of air leakage is further caused.
In summary, in the puncture outfit with high tightness in the present embodiment, through the cross-shaped sealing opening 1211 of the unidirectional choke valve 121, the reinforcing ribs 22212 of the tapered silica gel member 2221, and the arrangement that the wall thickness of the portion of the tapered silica gel member 2221 close to the round hole 22211 is smaller than the wall thickness of the rest portion of the tapered silica gel member 2221 far from the round hole 22211, the tightness of the puncture outfit is increased; through the bending part 22121 in the middle of the elastic silica gel piece 2212 and the arrangement that the wall thickness of the elastic silica gel piece 2212 is smaller than that of the conical silica gel piece 2221, the elastic silica gel piece 2212 can be used as an elastic auxiliary piece of the conical silica gel piece 2221, so that the phenomenon of blocking or air leakage can not occur when the special-shaped surgical instrument passes through the puncture outfit; through the protection of the blade 2231 to the tapered silica gel piece 2221, the risk that the tapered silica gel piece 2221 is punctured is avoided, and the tightness of the puncture outfit is ensured.
The above are merely embodiments of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present invention, should be included in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a puncture outfit of high leakproofness, includes guide tube assembly (1) and locates main part subassembly (2) and air valve (3) of guide tube assembly (1), its characterized in that:
the main body assembly (2) comprises a main housing (21) and an elastic sealing member (22) arranged in the main housing (21); the main shell (21) is arranged on the guide pipe assembly (1); the elastic sealing piece (22) comprises an elastic sealing seat (221) and a round hole sealing piece (222); the elastic sealing seat (221) comprises an inner seat ring (2211), an elastic silica gel piece (2212) and an outer ring shell (2213); the elastic silica gel piece (2212) is arranged outside the inner seat ring (2211) in a surrounding mode, the outer ring shell (2213) is arranged outside the elastic silica gel piece (2212) in a surrounding mode, a bending part (22121) is arranged at the middle position of the elastic silica gel piece (2212), the bending part (22121) is U-shaped, the bending parts (22121) are two continuous parts and form a wavy shape, the elastic silica gel piece (2212) is made of silica gel materials and has high elasticity, and the overall elasticity of the elastic silica gel piece (2212) is further increased due to the wavy arrangement of the bending part (22121); the round hole sealing piece (222) comprises a conical silica gel piece (2221) and an annular part (2222); a round hole (22211) is formed in the top end of the conical silica gel piece (2221), and the top end of the conical silica gel piece (2221) is opposite to the guide tube assembly (1); the annular part (2222) is arranged at the bottom end of the conical silica gel piece (2221) in a surrounding manner; the annular part (2222) is correspondingly arranged on the inner annular seat (2211), the conical silica gel piece (2221) is made of silica gel material, has larger thickness and good elasticity, and can tightly cover the surgical instrument when the surgical instrument passes through the round hole (22211), so that the surgical instrument is prevented from being leaked;
the wall thickness of elasticity silica gel spare (2212) is less than the wall thickness of toper silica gel spare (2221), when receiving external force effect, the deformation of elasticity silica gel spare (2212) can be greater than the deformation of toper silica gel spare (2221), when the surgical instruments pass through toper silica gel spare (2221), its production effort in on toper silica gel spare (2221), make toper silica gel spare (2221) follow the surgical instruments motion, but because the wall thickness of elasticity silica gel spare (2212) is thinner, the effort of cell-phone apparatus can shift to on elasticity silica gel spare (2212), make elasticity silica gel spare (2212) produce deformation, most effort when the surgical instruments passed through can be offset to the deformation of elasticity silica gel spare (2212), the effort that toper silica gel spare (2221) received is little, then toper silica gel spare (2221) can reduce, makes the surgical instruments can the toper pass through toper silica gel spare (2221), can not cause the card to stop, also can not produce the deformation and can produce the leak gas phenomenon to the sealed device, and then the phenomenon is passed through.
2. The high tightness puncture device according to claim 1, characterized in that the elastic sealing member (22) further comprises a blade member (223); the blade member (223) includes a blade (2231) and a blade fixing portion (2232); the top ends of the fan blades (2231) are provided with fan blade openings (22311); the fan blade fixing part (2232) is annularly arranged at the bottom end of the fan blade (2231); the fan blades (2231) are correspondingly arranged on the elastic silica gel piece (2212); the fan blade opening (22311) is opposite to the round hole (22211); the fan blade fixing portion (2232) is connected to the annular portion (2222).
3. The high-tightness puncture outfit according to claim 1, wherein the wall thickness of the part of the conical silica gel piece (2221) close to the round hole (22211) is smaller than the wall thickness of the rest of the conical silica gel piece (2221) far away from the round hole (22211).
4. The high-tightness puncture device according to claim 1, characterized in that the guide tube assembly (1) comprises a guide tube (11) and a gas-barrier seal (12); the guide pipe fitting (11) comprises a guide pipe (111) and a guide pipe base (112) arranged at the bottom end of the guide pipe (111); the catheter base (112) is in communication with the catheter (111); the choke seal (12) comprises a one-way choke valve (121) and a valve fixing seat (122); the bottom end of the one-way choke valve (121) is arranged on the valve fixing seat (122); the valve fixing seat (122) is arranged in the catheter base (112), and the top end of the one-way choke valve (121) is opposite to the catheter (111); the top end of the unidirectional choke valve (121) opposite to the conduit (111) is provided with a cross-shaped sealing port (1211).
5. The puncture outfit with high sealing performance according to claim 4, wherein the top end of the unidirectional choke valve (121) is a plane, and the cross-shaped sealing port (1211) is arranged on the top end plane of the unidirectional choke valve (121); four grooves (1212) are formed in the side wall of the one-way choke valve (121); the four grooves (1212) are sequentially arranged along the peripheral direction of the side wall of the unidirectional choke valve (121), and the four grooves (1212) are respectively opposite to the four ends of the cross-shaped sealing port (1211).
6. The high-tightness puncture outfit according to claim 5, wherein each groove (1212) is gradually increased in width and depth along a direction from a bottom end of the one-way choke valve (121) to a top end of the one-way choke valve (121).
7. The puncture outfit with high sealing performance according to claim 1, wherein a plurality of reinforcing ribs (22212) are arranged on the side wall of the conical silica gel piece (2221); the reinforcing ribs (22212) are sequentially arranged at intervals along the circumferential direction of the circular cross section of the conical silica gel piece (2221), and two ends of each reinforcing rib (22212) are respectively opposite to the round hole (22211) and the annular part (2222).
8. The high tightness puncture outfit according to claim 2, characterized in that the elastic sealing means (22) further comprises a sealing fixture (224); the sealing fixing piece (224) comprises a sealing fixing upper cover (2241), a sealing fixing lower cover (2242) and a positioning ring (2243); the sealing fixed upper cover (2241) is provided with a plurality of clamping columns (22411); the sealing fixed lower cover (2242) is provided with a plurality of clamping grooves (22421); the clamping grooves (22421) are in one-to-one correspondence with the clamping columns (22411); the positioning ring (2243) is positioned between the annular part (2222) and the fan blade fixing part (2232);
the clamping columns (22411) of the sealing and fixing upper cover (2241) sequentially penetrate through the fan blade fixing part (2232), the positioning ring (2243), the annular part (2222) and the inner seat ring (2211) and then are clamped with the clamping grooves (22421) of the sealing and fixing lower cover (2242).
9. The puncture outfit with high tightness according to claim 4, wherein the bottom end of the valve fixing seat (122) is provided with a valve clamping groove (1213) in a surrounding manner;
the valve fixing seat (122) comprises a valve fixing upper seat (1221) and a valve fixing lower seat (1222); the valve fixing upper seat (1221) is sleeved outside the bottom end of the valve fixing seat (122), a clamping table (12211) is arranged on the inner wall of the valve fixing upper seat, and the clamping table (12211) is clamped in the valve clamping groove (1213); the outer wall of the valve fixing upper seat (1221) is provided with a first rotary fastener (12212); the valve fixing lower seat (1222) is pressed on the outer wall of the valve clamping groove (1213) and is attached to the inner wall of the valve fixing seat (122);
a second rotary fastener (211) matched with the first rotary fastener (12212) is arranged at one end of the main shell (21) opposite to the catheter base (112); the second rotary fastening member (211) is fastened to the first rotary fastening member (12212).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948776.4A CN109259826B (en) | 2018-08-20 | 2018-08-20 | Puncture outfit with high sealing performance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810948776.4A CN109259826B (en) | 2018-08-20 | 2018-08-20 | Puncture outfit with high sealing performance |
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| CN109259826A CN109259826A (en) | 2019-01-25 |
| CN109259826B true CN109259826B (en) | 2024-03-29 |
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| CN201810948776.4A Active CN109259826B (en) | 2018-08-20 | 2018-08-20 | Puncture outfit with high sealing performance |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110495934A (en) * | 2019-09-20 | 2019-11-26 | 常州健瑞宝医疗器械有限公司 | Flake valve, puncture seal component and puncture outfit |
| CN111000621A (en) * | 2019-12-09 | 2020-04-14 | 天津瑞奇外科器械股份有限公司 | Sealing structure, puncture cannula and medical puncture outfit |
| CN111658086A (en) * | 2020-06-19 | 2020-09-15 | 中国科学院沈阳自动化研究所 | Multi-channel puncture outfit for endoscopic surgery |
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| CN104083195A (en) * | 2014-07-15 | 2014-10-08 | 山东威瑞外科医用制品有限公司 | Minimally invasive puncture device |
| WO2014187093A1 (en) * | 2013-05-24 | 2014-11-27 | Ma Boping | Puncture outfit with relatively good sealing performance |
| CN107049382A (en) * | 2017-06-12 | 2017-08-18 | 常州艾隆精密机械有限公司 | It is a kind of to rotate flexible, the abdominal cavity puncture outfit seal assembly of sealed reliable |
| KR20180083722A (en) * | 2017-01-13 | 2018-07-23 | 김기 | Sealing assembly for a troca and a medical troca comprising the same |
| CN209032570U (en) * | 2018-08-20 | 2019-06-28 | 荣佳(惠州)医疗器械制造有限公司 | The puncture outfit of high leakproofness |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551845B (en) * | 2010-12-21 | 2016-03-02 | 周星 | For annular sealing device and the perforator of perforator |
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| WO2011138812A1 (en) * | 2010-05-03 | 2011-11-10 | Ab Medica S.P.A. | Seal device for trocar and related trocar |
| WO2014187093A1 (en) * | 2013-05-24 | 2014-11-27 | Ma Boping | Puncture outfit with relatively good sealing performance |
| CN104083195A (en) * | 2014-07-15 | 2014-10-08 | 山东威瑞外科医用制品有限公司 | Minimally invasive puncture device |
| KR20180083722A (en) * | 2017-01-13 | 2018-07-23 | 김기 | Sealing assembly for a troca and a medical troca comprising the same |
| CN107049382A (en) * | 2017-06-12 | 2017-08-18 | 常州艾隆精密机械有限公司 | It is a kind of to rotate flexible, the abdominal cavity puncture outfit seal assembly of sealed reliable |
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| CN109259826A (en) | 2019-01-25 |
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