CN107115136B - Abdominal cavity puncture outfit - Google Patents

Abdominal cavity puncture outfit Download PDF

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Publication number
CN107115136B
CN107115136B CN201710438511.5A CN201710438511A CN107115136B CN 107115136 B CN107115136 B CN 107115136B CN 201710438511 A CN201710438511 A CN 201710438511A CN 107115136 B CN107115136 B CN 107115136B
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CN
China
Prior art keywords
valve
puncture
wall
sealing
sheath tube
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Expired - Fee Related
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CN201710438511.5A
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Chinese (zh)
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CN107115136A (en
Inventor
仝小冬
郑红连
吴君杰
戴维
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Changzhou Arone Precision Machinery Co ltd
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Changzhou Arone Precision Machinery Co ltd
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Priority to CN201710438511.5A priority Critical patent/CN107115136B/en
Publication of CN107115136A publication Critical patent/CN107115136A/en
Application granted granted Critical
Publication of CN107115136B publication Critical patent/CN107115136B/en
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    • 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
    • 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
    • A61B17/3421—Cannulas
    • 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
    • A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
    • 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

Abstract

The invention discloses an abdominal cavity puncture outfit, and belongs to the field of medical instruments. The invention discloses an abdominal cavity puncture outfit which comprises a puncture needle assembly, a sealing valve assembly and a sheath tube assembly, wherein the puncture needle assembly, the sealing valve assembly and the sheath tube assembly can be assembled together in sequence, the puncture needle assembly comprises a puncture core rod and a puncture head arranged at one end of the puncture core rod, the sealing valve assembly comprises an air choke valve arranged in a valve body, the sheath tube assembly comprises a sheath tube, a sheath tube seat arranged at one end of the sheath tube and a fetching valve arranged in the sheath tube seat, the air choke valve comprises a valve wall which is provided with an opening at the center and is in an integral trumpet-shaped structure, and the gradient of the valve wall is gradually reduced from the central opening of the valve wall to. The puncture outfit has the advantages of good sealing performance, strong puncture force, convenient fetching, compact structure, convenient manufacture, flexible and convenient use and the like by improving the existing puncture outfit.

Description

Abdominal cavity puncture outfit
Technical Field
The invention relates to a medical puncture instrument, in particular to an abdominal cavity puncture outfit with excellent air tightness.
Background
The abdominal cavity puncture outfit is a surgical instrument commonly used in abdominal cavity puncture operations, and is mainly used for establishing artificial pneumoperitoneum and an instrument channel in laparoscopic operations. In laparoscopic surgery, artificial pneumoperitoneum is the key to successful surgery, and the artificial pneumoperitoneum needs to be established before surgery so as to separate the peritoneal wall from the viscera, thereby facilitating the surgical operation. The existing abdominal cavity puncture outfit mainly comprises a puncture needle, a sealing valve and a puncture sheath tube, when in use, the puncture needle, the sealing valve and the puncture sheath tube are combined together firstly, the puncture sheath tube is punctured into an abdominal cavity from human skin by the puncture needle, and an artificial pneumoperitoneum is established by a gas injection valve on the puncture sheath tube; after the puncture needle is taken out, the sealing valve and the puncture sheath tube form an operation channel, and the surgical instrument is inserted into the abdominal cavity through the sealing valve and the puncture sheath tube to carry out laparoscopic operation. In the operation process, the surgical instruments are in sealing fit with the sealing valve, so that the pneumoperitoneum cannot leak air to influence the operation, when focal tissues need to be taken out, the sealing valve is detached from the puncture sheath, the sealing is realized by the fetching valve on the puncture sheath, and the focal tissues are taken out by instruments such as biopsy forceps and the like penetrating the fetching valve.
For the sealing valve structure, in the Chinese patent number ZL200510062967.3, the date of granted announcement is 6 months and 17 days in 2009, the name of the invention creation is as follows: in the improved trocar seal application, a sealing valve arrangement for a laparoscopic puncture instrument is described, the seal assembly comprising a first substantially rigid ring, a second substantially rigid ring, and a plurality of layers of elastomeric members compressed between the two rings, the plurality of layers of elastomeric members being interlaced to form a conical seal, the plurality of layers of elastomeric members preferably having a semi-circular profile and preferably having a circumference of about 180 to 270 degrees; in addition, a protection component with a similar structure is arranged on the upper part of the conical sealing element. The abdominal cavity puncture outfit adopting the conical sealing piece with the structure is very common in the market, and achieves better use effect: for example, the seal eliminates the "hoop stress" problem, greatly reduces strain in the system during instrument insertion by breaking the seal into multiple parts, effectively reduces resistance to instrument insertion and withdrawal, and facilitates penetration of the instrument through the seal. However, the sealing member of the above structure has the following disadvantages:
1) the sealing element is formed by a multi-section structure, so that the processing and the assembly of the sealing element are difficult, and the manufacturing cost of the sealing element is increased;
2) because the sealing element adopts a multi-section structure, complete sealing is difficult to realize when the sealing element is matched with the side wall of the instrument, and the sealing performance of the sealing element is reduced to some extent.
In addition, for the lip-shaped sealing element, there are also related improved technical disclosures, such as chinese patent number ZL201320161408.8, the publication date of the authorization is 12 months and 25 days in 2013, and the name of the invention creation is: a multi-stage sealed medical puncture outfit is disclosed in the application, a non-resistance sealing ring is introduced, the center of the non-resistance sealing ring is a through hole, the non-resistance sealing ring comprises an umbrella-shaped core disc, the whole non-resistance sealing ring is of an integral structure formed in one step, the umbrella-shaped core disc is positioned in the middle of the non-resistance sealing ring, the umbrella-shaped core disc is of a protruding structure, and the umbrella-shaped core disc consists of a plurality of core disc elastic membranes which are uniformly distributed into an umbrella shape. The application adopts the non-resistance sealing ring with special structure and shape, ensures the instrument to move left and right without resistance in the puncture process by utilizing the film on the periphery of the non-resistance sealing ring, and ensures the instrument to be airtight when moving back and forth in the puncture process by utilizing the elastic film of the core disc. However, the above non-resistance sealing ring still has major defects: the non-resistance sealing ring is a lip-shaped sealing element, a central through hole of the non-resistance sealing ring has larger resistance to the insertion and extraction of an instrument while ensuring the sealing performance, when the instrument is extracted, an umbrella-shaped core disc of the non-resistance sealing ring is easy to turn outwards along with the extraction of the instrument, so that the re-insertion of the instrument is influenced, and after the sealing ring is turned upwards, the original deformation capacity of the sealing ring is reduced, the central hole is small, and the sealing ring is easy to be hooked by edges and corners of instruments such as suturing nails, hemostatic forceps and the like, so that the normal operation; moreover, the non-resistance sealing ring is frequently upturned along with the extraction of an instrument, so that the sealing ring is easy to crack and damage, and the risk of air leakage of the air blocking valve is increased.
For the fetching valve structure, in Chinese patent number ZL200410092185.X, the date of the issue of grant is 2008, 4 months and 2 days, the name of the invention is: in the application of the multi-angled duckbill seal assembly, there is described an access valve structure for a laparoscopic puncture instrument, the duckbill seal assembly including first and second seal bodies extending from an annular flange member, distal ends of the first and second seal bodies intersecting to define an engagement surface to allow passage of an instrument therethrough, the engagement surface being closed by the resiliency of the first and second seal bodies in the absence of an instrument. Further details regarding the duckbill seal assembly described above can also be found in U.S. patent application No. US20090005799a 1. The fetching valve with the structure has a good sealing effect, but has certain defects, and is mainly embodied in that the opening ranges of the first sealing body and the second sealing body of the duckbill-shaped sealing assembly are small, so that great interference exists in the operation of cutting off tissues, the operation difficulty and the operation time are increased, and the operation risk is increased.
Aiming at the problems of the existing abdominal cavity puncture outfit, the abdominal cavity puncture outfit with good sealing effect, simple manufacture and convenient operation needs to be designed urgently so as to overcome a plurality of defects of the existing product.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of the existing abdominal cavity puncture outfit and provide the abdominal cavity puncture outfit with excellent air tightness, and by adopting the technical scheme of the invention, the structure of the air-blocking valve is improved, so that the sealing performance of the air-blocking valve is better, the deformation capability of the sealing valve in resisting the direction of a central normal line is obviously improved, the air-blocking valve is not easy to turn upwards, and the air leakage risk of the air-blocking valve is greatly reduced; when the air-blocking valve is inserted into or drawn out of the instrument, the air-blocking valve has small resistance to the instrument, and has a universal rolling function in a certain range, so that the operation is more convenient; meanwhile, the puncture needle has the characteristics of strong puncture force, convenience in fetching, compact structure, convenience in manufacturing, flexibility in use and the like.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses an abdominal cavity puncture outfit which comprises a puncture needle assembly, a sealing valve assembly and a sheath tube assembly, wherein the puncture needle assembly, the sealing valve assembly and the sheath tube assembly can be assembled together in sequence, the puncture needle assembly comprises a puncture core rod and a puncture head arranged at one end of the puncture core rod, the sealing valve assembly comprises an air choke valve arranged in a valve body, the sheath tube assembly comprises a sheath tube, a sheath tube seat arranged at one end of the sheath tube and a fetching valve arranged in the sheath tube seat, the air choke valve comprises a valve wall which is provided with an opening at the center and is in an integral trumpet-shaped structure, and the gradient of the valve wall is gradually reduced from the central opening of the valve wall to.
Furthermore, a plurality of creases extending from the center of the valve wall to the periphery are uniformly distributed on the valve wall, and each crease consists of a convex rib arranged on the inner side of the valve wall and a groove arranged on the outer side of the valve wall and corresponding to the convex rib in position and shape; the sealing lip at the central opening of the valve wall is provided with a trumpet-shaped outward turning structure, and a plurality of small convex ribs extending along the central axis of the sealing lip are uniformly distributed on the trumpet-shaped outward turning structure of the sealing lip.
Further, the valve body of the sealing valve assembly includes an upper cover and a lower cover, and the choke valve is held between the upper cover and the lower cover by the outer periphery of a wavy elastic skirt provided at the periphery of the valve wall.
Furthermore, the inner side of the choke valve is also provided with a conical protection device which is formed by interweaving a plurality of protection blades and covers the inner side of the valve wall, the periphery of the protection device is clamped by the valve ring A and the valve ring B and is arranged in a containing cavity which is surrounded by the upper part of the valve wall and the elastic skirt edge.
Furthermore, the outer side of the choke valve is also provided with a movable cover which is covered on the outer side of the valve wall and is provided with an opening in the center, the outer side surface of the movable cover is a spherical surface, and the inner wall of the through hole at the lower part of the lower cover can be matched with the spherical surface at the outer side of the movable cover, so that the movable cover can perform relative rolling motion on the lower cover.
Furthermore, two arc-shaped lance walls are arranged on the puncture head, the two lance walls gradually shrink from the rear part to the front part of the puncture head to form a tip, and the two lance walls intersect at two sides to form side edges.
Furthermore, the puncture needle assembly further comprises a core rod seat arranged on the puncture core rod and far away from one end of the puncture head, the puncture core rod is hollow, an instrument channel opening communicated with the puncture core rod is formed in the top of the core rod seat, an instrument fixing lock catch used for fixing an instrument is arranged on the core rod seat, and a needle taking buckle used for being connected with or separated from the sealing valve assembly is further arranged on the core rod seat.
Furthermore, a reinforcing convex rib is arranged on the periphery of the needle taking buckle on the core rod seat.
Furthermore, the fetching valve in the sheath tube component adopts a three-flap structure.
Furthermore, a gas injection valve communicated with the sheath pipe is further arranged on the sheath pipe seat of the sheath pipe assembly, operating handles convenient to hold are further arranged on two sides of the sheath pipe seat, and threading holes convenient to connect and fix are formed in the operating handles.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the invention relates to an abdominal cavity puncture outfit, which comprises a puncture needle assembly, a sealing valve assembly and a sheath tube assembly which can be assembled together in sequence, wherein the sealing valve assembly comprises a choke valve arranged in a valve body, the choke valve comprises a valve wall which is provided with an opening at the center and is in an integral horn-shaped structure, the gradient of the valve wall is gradually reduced from the central opening of the valve wall to the periphery of the valve wall, and the structure of the choke valve is improved, so that the sealing performance of the choke valve is better, the deformation capability of the sealing valve in resisting the normal direction of the center is obviously improved, the choke valve is not easy to turn over, and the risk of air leakage of the choke valve is greatly reduced; moreover, the eversion of the air-blocking valve is effectively prevented, so that the back part of the air-blocking valve scraped by the edge and corner structure of the surgical instrument is reduced, the cracking and damage of the air-blocking valve are avoided, and the sealing performance of the abdominal puncture outfit is ensured;
(2) according to the abdominal cavity puncture outfit, the valve wall is uniformly provided with a plurality of wrinkles extending from the center of the valve wall to the periphery, the wrinkles are composed of the convex ribs arranged on the inner side of the valve wall and the grooves arranged on the outer side of the valve wall and corresponding to the positions and shapes of the convex ribs, and the deformation amplitude of the air resistance valve can be effectively reduced under the condition of frequent friction force, extrusion force and stretching force; the convex ribs can effectively reduce the contact surface between the air blocking valve and the instrument, thereby reducing the introduction friction force of the instrument, reducing the friction force between the air blocking valve and the upper protection blade, ensuring the flexible action between the sealing valve components in the use process and reducing the blocking feeling; meanwhile, the fold structure can provide sufficient material supplement in the deformation process of the inner diameter of the choke valve, so that the risk of damage of the choke valve is effectively reduced;
(3) according to the abdominal cavity puncture outfit, the sealing lip at the central opening of the valve wall is provided with the horn-shaped outward turning structure, the horn-shaped outward turning structure of the sealing lip is uniformly distributed with a plurality of small convex ribs extending along the central axis of the sealing lip, the horn-shaped outward turning structure of the central opening of the valve wall is opposite to the integral horn-shaped structure of the air lock valve in direction, the normal pressure of the contact surface of the sealing lip and an instrument is effectively reduced, the contact area between the sealing lip and the instrument is further reduced when the instrument is drawn out through the design of the small convex ribs, the friction resistance of the instrument in drawing out is reduced, and the outward turning possibility of the air lock valve is further reduced;
(4) the invention relates to an abdominal cavity puncture outfit.A valve body of a sealing valve component of the abdominal cavity puncture outfit comprises an upper cover and a lower cover, wherein a choke valve is clamped between the upper cover and the lower cover through the periphery of a wave-shaped elastic skirt edge arranged on the periphery of a valve wall, the choke valve is enabled to have a certain axial moving space by utilizing the wave-shaped elastic skirt edge and is matched with a movable cover outside the choke valve, and the choke valve can have a universal rotating function in the sealing valve component by utilizing the rolling fit of the movable cover and the inner wall of a lower through hole of the lower cover, so that the flexible operation of an apparatus is; the rigidity constraint of the choke valve in each direction in the use range is zero, so that the choke valve has good operability for an operator, and the problem of sealing failure of the choke valve caused by breakthrough of product limitation in similar products is solved;
(5) according to the abdominal cavity puncture outfit, the puncture head of the puncture needle assembly is provided with the two arc-shaped lance walls, the two lance walls are gradually reduced from the rear part to the front part of the puncture head to form the tip, the two lance walls are intersected at two sides to form the side edges to form the lance head type structure, so that resistance is reduced when puncture movement advances, normal pressure of reaction force acting on the puncture head during puncture is effectively reduced, the front edge is sharp, and the penetration force is strong;
(6) according to the abdominal cavity puncture outfit, the puncture needle assembly further comprises a core rod seat which is arranged on the puncture core rod and is far away from one end of the puncture head, the puncture core rod is hollow, an instrument channel opening communicated with the puncture core rod is formed in the top of the core rod seat, an instrument fixing lock catch used for fixing an instrument is arranged on the core rod seat, and a needle taking buckle used for being connected with or separated from the sealing valve assembly is further arranged on the core rod seat, so that a camera tool can be conveniently placed, tissues can be more conveniently and clearly observed through the camera tool by combining the regular shape of the puncture head, and organ tissues are effectively protected;
(7) according to the abdominal cavity puncture outfit, the core rod seat is provided with the reinforced convex ribs at the periphery of the needle taking buckle, so that an operator can grasp the core rod seat more conveniently during puncture, the convenience of operation is improved, and the puncture risk is reduced; meanwhile, the reinforced convex ribs increase the circumferential antiskid and structural strength of the puncture needle assembly, and the problem that the shell is broken when the puncture needle is taken out in an operation is avoided;
(8) according to the abdominal cavity puncture outfit, the fetching valve in the sheath tube component adopts the three-petal structure, compared with a duckbill fetching valve, the radial channel of the fetching valve is further enlarged, the convenience of fetching and cutting tissues is improved, the difficulty and time of an operation are reduced, and the operation risk is reduced;
(9) according to the abdominal cavity puncture outfit, the sheath tube seat of the sheath tube component is also provided with the air injection valve communicated with the sheath tube, so that pneumoperitoneum operation is facilitated; the two sides of the sheath tube seat are also provided with operating handles which are convenient to hold, the operating handles are provided with threading holes which are convenient for connecting and fixing wires, so that an operator can conveniently hold and operate, in order to meet different operation requirements, the sheath tube and the skin surface of a patient can be fixed by a method of providing a suture for the operator, and the operation convenience is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a laparoscopic puncture instrument according to the present invention;
FIG. 2 is a schematic view of a disassembled structure of the abdominal cavity puncture outfit of the present invention;
FIG. 3 is a schematic cross-sectional view of an abdominal cavity puncture outfit of the present invention;
FIG. 4 is a schematic structural view of the lancet assembly of the present invention;
FIG. 5 is a schematic structural view of the puncture head of the present invention;
FIG. 6 is a schematic structural view of a sealing valve assembly of the present invention;
FIG. 7 is an exploded view of the sealing valve assembly of the present invention;
FIG. 8 is a schematic cross-sectional view of the sealing valve assembly of the present invention;
FIG. 9 is a schematic view of an angled configuration of the choke valve of the present invention;
FIG. 10 is a schematic view of another angle configuration of the choke valve of the present invention;
FIG. 11 is a schematic cross-sectional view of a choke valve of the present invention;
FIG. 12 is a schematic view of the connection structure of the moving cover and the choke valve according to the present invention;
FIG. 13 is a schematic structural view of a sheath assembly according to the present invention;
FIG. 14 is a schematic cross-sectional view of a sheath assembly according to the present invention;
FIG. 15 is a schematic view of an angle of the object extraction valve of the present invention;
fig. 16 is a schematic view of another angle of the fetching valve of the present invention.
The reference numerals in the schematic drawings illustrate:
1. an introducer needle assembly; 1-1, puncturing a core rod; 1-2, puncturing head; 1-2-1, lance wall; 1-2-2, side edge; 1-2-3, tip; 1-3, a mandrel base; 1-4, an instrument passage port; 1-5, fixing a lock catch by an instrument; 1-6, taking the needle and fastening; 1-7, reinforcing convex ribs;
2. a sealing valve assembly; 2-1, an upper cover; 2-1-1, concave structure; 2-2, a lower cover; 2-2-1, rolling surfaces; 2-3, a choke valve; 2-3-1, valve wall; 2-3-2, an elastic skirt; 2-3-3, opening; 2-3-4, folding; 2-3-5, a cavity; 2-3-6, connecting hole; 2-3-7, sealing lip; 2-3-8 parts of small convex ribs; 2-3-9, a positioning ring; 2-4, protecting leaves; 2-5, a movable cover; 2-6, A valve ring; 2-7, B valve ring;
3. a sheath assembly; 3-1, a sheath; 3-2, a sheath tube seat; 3-2-1, operating a handle; 3-2-2, a threading hole; 3-3, a fetching valve; 3-3-1, valve clack; 3-3-2, valve port; 3-3-3, mounting edges; 3-3-4, inner wall reinforcing ribs; 3-3-5 parts of outer wall reinforcing ribs; 3-3-6, positioning blocks; 3-4, an air injection valve; 3-5, anti-skid lines; 3-6, pressing rings.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Examples
Referring to fig. 1, fig. 2 and fig. 3, the abdominal cavity puncture outfit of the present embodiment includes a puncture needle assembly 1, a sealing valve assembly 2 and a sheath assembly 3 which can be assembled together in sequence, and the connection and assembly structure of the puncture needle assembly 1, the sealing valve assembly 2 and the sheath assembly 3 is similar to that of the existing puncture outfit, for example, the puncture needle assembly 1 and the sealing valve assembly 2 can be connected by a snap structure, and the sealing valve assembly 2 and the sheath assembly 3 can be connected by a rotary snap structure. When the puncture outfit is used, firstly, the abdominal cavity puncture outfit is assembled into the state shown in fig. 1, namely, after the sealing valve assembly 2 and the sheath tube assembly 3 are assembled, the puncture needle assembly 1 sequentially penetrates through the sealing valve assembly 2 and the sheath tube assembly 3, and the sheath tube assembly 3 is inserted into human tissues under the guidance of the puncture needle assembly 1 to establish pneumoperitoneum; then the puncture needle assembly 1 is drawn out, the sealing is realized by the fetching valve 3-3 in the sheath tube assembly 3, then the surgical operation is carried out by the surgical instrument through the sealing valve assembly 2 and the sheath tube assembly 3, and the sealing is formed by the air choke valve 2-3 in the sealing valve assembly 2 and the side wall of the instrument; when it is desired to remove surgically excised tissue, the sealing valve assembly 2 is removed and the excised tissue is removed through the access valve 3-3 using an instrument such as a biopsy forceps.
As shown in fig. 3 and 4, the puncture needle assembly 1 includes a puncture core bar 1-1 and a puncture head 1-2 disposed at one end of the puncture core bar 1-1, and unlike the existing conical puncture head structure, the puncture head 1-2 of the present embodiment is provided with two curved lance walls 1-2-1 (as shown in fig. 5), the two lance walls 1-2-1 gradually decrease from the rear portion of the puncture head 1-2 to the front portion to form a tip 1-2-3, and the two lance walls 1-2-1 intersect at two sides to form a side blade 1-2-2. The puncture head 1-2 in the embodiment is similar to a spearhead type structure, two sides of the puncture head are unfolded to form spears with edges, and the spears are gathered forwards to form sharp spikes, so that the whole puncture head 1-2 is of a streamline or side-flat structure, resistance is reduced when puncture motion advances, normal pressure of reaction force acting on the puncture head during puncture is effectively reduced, the spikes are sharp, and the penetrating power is strong. In addition, the puncture needle assembly 1 also comprises a core rod seat 1-3 which is arranged at one end of the puncture core rod 1-1 far away from the puncture head 1-2, the puncture core rod 1-1 is hollow, an instrument channel port 1-4 communicated with the puncture core rod 1-1 is arranged at the top of the core rod seat 1-3, an instrument fixing lock catch 1-5 used for fixing an instrument is arranged on the core rod seat 1-3, and a needle taking buckle 1-6 used for connecting or separating with the sealing valve assembly 2 is also arranged on the core rod seat 1-3. In the embodiment, the preferred inclination of 5-60 degrees is arranged at the 1-4 position of the instrument channel port, and the best inclination of 15-45 degrees is used for facilitating the introduction of the instrument; the upper parts of the core rod seats 1 to 3 are round and smooth, so that an operator can conveniently grasp the core rod seats during puncturing, the convenience of the operation is improved, and the puncturing risk is reduced. When the puncture needle is used, a camera tool extends into the puncture core rod 1-1 from the instrument channel opening 1-4, after the camera tool reaches a set position, the position of the camera tool is fixed by utilizing the instrument fixing lock catch 1-5, the camera tool can be conveniently placed, and the tissues can be more conveniently and clearly observed through the camera tool by combining the regular shape of the puncture head 1-2, so that organ tissues are effectively protected during puncture; the lancet assembly 1 can be removed from the sealing valve assembly 2 by pressing the needle extraction snaps 1-6. It should be understood that when a camera is needed to be used for puncture, the puncture head 1-2 is made of transparent material. In addition, in order to prevent the problem of broken shell when the puncture needle is taken out in an operation, reinforcing convex ribs 1-7 are also arranged on the core rod seat 1-3 and positioned at the periphery of the needle taking buckle 1-6, so that the circumferential antiskid and structural strength of the puncture needle assembly 1 are increased, and the appearance of the core rod seat 1-3 has higher identification degree. As for the structural principles of the instrument fixing lock 1-5 and the needle taking buckle 1-6 are similar to the prior art, the detailed description is omitted.
As shown in fig. 6, 7, 8 and 9, the sealing valve assembly 2 includes a choke valve 2-3 disposed in the valve body, the choke valve 2-3 includes a valve wall 2-3-1 having an opening 2-3-3 at the center and having an integral trumpet-shaped structure, the valve body of the sealing valve assembly 2 includes an upper cover 2-1 and a lower cover 2-2, the choke valve 2-3 is clamped between the upper cover 2-1 and the lower cover 2-2 by the outer periphery of a wavy elastic skirt 2-3-2 disposed at the periphery of the valve wall 2-3-1, the valve wall 2-3-1 and the elastic skirt 2-3-2 are preferably integrally formed, and the material of the choke valve 2-3 is preferably rubber or silicone rubber, the wavy elastic skirt 2-3-2 is used to provide mechanical support for the valve wall 2-3-1, the valve wall 2-3-1 is suspended in the center of the upper cover 2-1 and the lower cover 2-2, and has no contact with the upper cover 2-1 and the lower cover 2-2, no friction, and certain axial moving space for the choke valve 2-3. Most importantly, as shown in FIG. 11, the slope of the valve wall 2-3-1 gradually decreases from the central opening 2-3-3 of the valve wall 2-3-1 to the periphery of the valve wall 2-3-1, i.e., the valve wall 2-3-1 gradually tapers from the central opening 2-3-3 of the valve wall 2-3-1 to the periphery of the valve wall 2-3-1, the slope is the slowest at the maximum diameter and the slope is the steepest at the minimum diameter. Experiments show that the steeper the gradient of the valve wall 2-3-1 at the central opening 2-3-3, which is close to the sealing lip 2-3-7 of the sealing ring structure, the more remarkable the sealing lip 2-3-7 resists deformation in the direction of the central normal, and the less easy the sealing lip 2-3-7 turns upwards; compared with the existing inverted cone-shaped valve wall structure, the problem that the sealing lip 2-3-7 of the choke valve 2-3 turns upwards in use is effectively solved. As the operator of the instrument is aware of, when the operator of the instrument uses the instrument, the upturning of the sealing lip 2-3-7 can increase the friction force for leading in the instrument, after the upturning of the sealing lip 2-3-7, the original deformation capability of the air choke valve 2-3 is reduced, the central opening 2-3-3 is reduced, and the air choke valve is easy to be hooked by edges and corners of instruments such as a suturing nail, a hemostatic forceps and the like, which greatly influences the usability of the instrument. According to the abdominal cavity puncture outfit, the structure of the air-blocking valve 2-3 is improved, so that the sealing performance of the air-blocking valve 2-3 is better, the deformation capability of the air-blocking valve 2-3 in the direction resisting the central normal is obviously improved, the air-blocking valve 2-3 is not easy to turn upwards, and the air leakage risk of the air-blocking valve 2-3 is greatly reduced; and because the gas barrier valve 2-3 is effectively prevented from turning outwards, the back of the gas barrier valve 2-3 scraped by the edge structure of the surgical instrument is reduced, the gas barrier valve 2-3 is prevented from cracking and damaging, and the sealing performance of the abdominal puncture outfit is ensured.
As shown in fig. 9 and 10, in order to further prevent the choke valve 2-3 from turning outwards, in the present embodiment, a plurality of creases 2-3-4 extending from the center of the valve wall 2-3-1 to the periphery are uniformly distributed on the valve wall 2-3-1, and preferably, the creases 2-3-4 are formed by ribs arranged on the inner side of the valve wall 2-3-1 (the inner side of the valve wall 2-3-1 can be referred to as "male surface") and grooves arranged on the outer side of the valve wall 2-3-1 (the outer side of the valve wall 2-3-1 can be referred to as "female surface") corresponding to the positions and shapes of the ribs. Further preferably, the folds 2-3-4 adopt a spiral structure and macroscopically form a three-dimensional variable-diameter spiral line, the convex ribs and the concave grooves forming the folds 2-3-4 are respectively attached to the male surface and the female surface of the valve wall 2-3-1, the spiral radius of the spiral line increases from the periphery to the center according to the equation, and the spiral line equation is as follows:
x2+y2＝r2；
z＝k·[2π+arctan(y/x)]；
wherein r is the radius of the helix; k 2 pi is the distance of rise in the z axis per revolution; k and r are both constants.
The design of the spiral wrinkles 2-3-4 is based on the generalized Hooke's law, the three-dimensional reducing spiral line and the modern theory of solid friction, the complexity of the mechanical property of the air lock valve 2-3 in the using process is fully considered, the regular change of the three-dimensional reducing spiral line is utilized and combined with the generalized Hooke's law, and the design and analysis result shows that the deformation amplitude of the air lock valve 2-3 can be reduced well even under the frequent friction force, extrusion force and stretching force, and the original shape is kept to have the mechanical property. In the using process, the instrument enters from the bell mouth of the air lock valve 2-3, and in the process of entering the sealing lip 2-3-7, the convex rib on the male surface provides a smaller contact surface, so that the friction force introduced into the instrument is reduced; in addition, in the process of introducing the instrument, the inner diameter of the bell mouth of the air lock valve 2-3 is enlarged, and the fold structure can provide sufficient material supplement in the process of deformation of the inner diameter of the air lock valve 2-3, so that the risk of breakage of the air lock valve is effectively reduced.
In addition, as shown in fig. 10 and 11, the sealing lip 2-3-7 at the central opening 2-3-3 of the valve wall 2-3-1 in the embodiment has a trumpet-shaped outward turning structure, and a plurality of small convex ribs 2-3-8 extending along the central axis of the sealing lip 2-3-7 are uniformly distributed on the trumpet-shaped outward turning structure of the sealing lip 2-3-7. It is known that under the influence of the displacement of the instrument, the "female" face of the sealing lip 2-3-7 must contact with the instrument to generate friction, and when the friction force exceeds the dynamic friction range, the friction is converted into static friction, so that the sealing lip 2-3-7 is turned upwards to influence the service performance of the choke valve 2-3. In the structure of the sealing lip 2-3-7 in the embodiment, the direction of the trumpet-shaped outward-turning structure of the central opening 2-3-3 of the valve wall 2-3-1 is opposite to that of the integral trumpet-shaped structure of the air lock valve 2-3, the normal pressure of the contact surface of the sealing lip 2-3-7 and an instrument is reduced through the trumpet-shaped structure, meanwhile, a plurality of small convex ribs 2-3-8 which extend along the central axis of the sealing lip 2-3-7 are designed and uniformly distributed on the 'female surface' of the sealing lip 2-3-7 from the lower part of the main sealing surface, namely on the trumpet-shaped outward-turning structure of the sealing lip 2-3-7, 15-25 small convex ribs 2-3-8 are preferably arranged, and the small convex ribs 2-3-8 are characterized in that: the height of the trumpet-shaped surface of the sealing lip 2-3-7 is reduced along with the reduction of the radial dimension of the sealing lip 2-3-7, finally, the height of the surface of the sealing lip 2-3-7 is zero, and through the design of the small convex ribs 2-3-8, the contact area between the sealing lip 2-3-7 and the instrument is further reduced when the instrument is extracted, the frictional resistance of the instrument in extraction is reduced, and the eversion possibility of the choke valve is further reduced.
As shown in fig. 7 and 8, the inner side of the choke valve 2-3 in this embodiment is further provided with a tapered protection device covered on the inner side of the valve wall 2-3-1 and formed by interweaving a plurality of protection leaves 2-4, the protection leaves 2-4 are preferably 4, the 4 protection leaves 2-4 are staggered with each other to form a tapered structure, the periphery of the protection device is clamped by the valve ring a 2-6 and the valve ring B2-7 and is installed in a cavity 2-3-5 enclosed by the upper part of the valve wall 2-3-1 and the elastic skirt 2-3-2, the valve ring a 2-6 and the valve ring B2-7 are provided with a connecting column and a connecting hole which are matched with each other, the valve ring a 2-6 and the valve ring B2-7 clamp and fix the periphery of the protection leaves 2-4 through the insertion and matching of the connecting column and the connecting hole, the valve ring A2-6 and the choke valve 2-3 are also in fit connection through a connecting column and a connecting hole. The protective leaves 2-4 are utilized to protect the air lock valve 2-3 to a certain extent, and the corrugated structure arranged on the air lock valve 2-3 also reduces the friction force between the air lock valve 2-3 and the protective leaves 2-4 on the upper part, ensures the flexible action between the sealing valve components 2 in the using process and reduces the blocking feeling of the operation of the instrument. In addition, referring to fig. 6, 7, 8 and 12, the choke valve 2-3 in this embodiment is further provided with a movable cover 2-5 covering the outside of the valve wall 2-3-1 and having an opening in the center, the outer side surface of the movable cover 2-5 is a spherical surface, the inner wall of the lower through hole of the lower cover 2-2 can be matched with the spherical surface outside the movable cover 2-5, and preferably, a circle of spherical rolling surface 2-2-1 can be provided at the inner wall of the lower through hole of the lower cover 2-2 to enable the movable cover 2-5 to perform relative rolling movement on the lower cover 2-2; the diameter of the movable cover 2-5 is larger than that of the through hole at the lower part of the lower cover 2-2, and the diameter of the opening of the movable cover 2-5 is smaller than that of the through hole at the lower part of the lower cover 2-2. Specifically, a plurality of connecting columns are arranged at the upper part of the movable cover 2-5, and connecting holes 2-3-6 matched and connected with the connecting columns are arranged on the air choke valve 2-3; in order to better coaxially position the movable cover 2-5 and the choke valve 2-3 and prevent the movable cover 2-5 and the choke valve 2-3 from being dislocated relatively during use, a circle of positioning ring 2-3-9 is further arranged on the outer side of the choke valve 2-3, and the positioning ring 2-3-9 is matched with and limited by a positioning ring on the movable cover 2-5. The movable cover 2-5 is matched with the inner wall of the lower through hole of the lower cover 2-2 in a rolling way, so that the air choke valve 2-3 can have a universal rotating function in the sealing valve assembly 2, and the flexible operation of instruments is facilitated; and the rigidity constraint of the choke valve 2-3 in each direction in the use range is zero, thereby providing excellent operability for operators and avoiding the problem of sealing failure of the choke valve 2-3 caused by breakthrough of product limit in the similar products. In order to facilitate the instruments to extend into the sealing valve assembly 2 for surgical operation, the upper opening of the upper cover 2-1 is further provided with a concave structure 2-1-1 for smooth introduction of the instruments.
As shown in fig. 3, 13 and 14, the sheath assembly 3 comprises a sheath 3-1, a sheath seat 3-2 disposed at one end of the sheath 3-1, and a fetching valve 3-3 disposed in the sheath seat 3-2, wherein the sheath 3-1 and the sheath seat 3-2 are formed in an integral structure to ensure the air tightness of the sheath 3-1; the anti-slip grains 3-5 are further arranged on the periphery of the sheath tube 3-1, the anti-slip grains 3-5 are utilized to increase the resistance of the sheath tube 3-1 in the puncturing process, the damage to organs caused by the fact that the puncture outfit punctures too deeply due to the fact that the resistance is suddenly reduced when penetrating tissues is effectively prevented, and the use is safer and more reliable. A sheath tube seat 3-2 of the sheath tube component 3 is also provided with a gas injection valve 3-4 communicated with the sheath tube 3-1, so that pneumoperitoneum operation is facilitated; the two sides of the sheath tube seat 3-2 are also provided with operating handles 3-2-1 which are convenient to hold, the operating handles 3-2-1 are provided with threading holes 3-2-2 which are convenient for connecting and fixing, so that an operator can conveniently hold and operate, and in order to adapt to different operation requirements, a method for fixing the sheath tube 3-1 and the skin surface of a patient by using a suture line is provided for the operator, so that the operation convenience is improved.
Referring to fig. 14, 15 and 16, in the present embodiment, the fetching valve 3-3 in the sheath assembly 3 adopts a three-petal structure, and compared with a duckbill fetching valve, a radial channel of the fetching valve is further enlarged, so that convenience of fetching the excised tissue is improved, difficulty and time of the operation are reduced, and operation risk is reduced; compared with a four-flap type fetching valve, the fetching valve 3-3 is high in structural strength, few in incision and better in sealing performance. Specifically, in this embodiment, the fetching valve 3-3 includes three valve flaps 3-3-1, each valve flap 3-3-1 includes a valve side wall and a valve bottom wall connected to the valve side wall into a whole, the valve side walls of the three valve flaps 3-3-1 are connected into a whole, three valve ports 3-3-2 extending from the center to the connecting edge of the valve side wall are formed in the valve bottom wall of the three valve flaps 3-3-1, and an included angle of the three valve ports 3-3-2 is preferably 120 °. The outer side of each valve clack 3-3-1 is provided with an outer wall reinforcing rib 3-3-5 extending from the valve bottom wall to the outer edge of the valve side wall, the inner side of each valve clack 3-3-1 is provided with an inner wall reinforcing rib 3-3-4 positioned on the connecting edge of the valve bottom wall and the valve side wall, and the outer wall reinforcing rib 3-3-5 and the inner wall reinforcing rib 3-3-4 ensure the stability of the shape of each valve clack 3-3-1, ensure the natural closing of the valve port 3-3-2 of the fetching valve 3-3, and prevent the valve bottom wall of the valve clack 3-3-1 from turning outwards to cause sealing failure. In addition, the outer wall reinforcing ribs 3-3-5 extend to the outer edge of the valve side wall from the valve bottom wall, the overall strength of the object taking valve 3-3 is improved, the stability and the reliability of the structure are improved, the rebound rate is improved, the self-tightness of the object taking valve 3-3 is improved, the inner wall reinforcing ribs 3-3-4 are arranged on the connecting edge of the valve bottom wall and the valve side wall, the size of the inner wall reinforcing ribs 3-3-4 is small, the space inside the object taking valve 3-3 is not occupied, meanwhile, the interference of hook hanging and the like to the operation of instruments is avoided, and the practicability is higher. In addition, the valve side wall of each valve flap 3-3-1 is inwardly curved, and the slope of the valve side wall gradually decreases from the bottom of the valve side wall toward the outer edge of the valve side wall, which contributes to the improvement in the deformation resistance and resilience of the valve flap 3-3-1. In order to facilitate the installation of the fetching valve 3-3 in the sheath tube seat 3-2, the outer edge of the valve side wall of the three-flap valve flap 3-3-1 is also provided with a circle of installation edge 3-3-3, the fetching valve 3-3 can be fixed in the sheath tube seat 3-2 through a compression ring 3-6, and the bottom of the installation edge 3-3-3 is also provided with a positioning block 3-3-6, so that the fetching valve 3-3 is convenient to fix in position, simple in structure and convenient to install.
The abdominal cavity puncture outfit provided by the invention has the characteristics of good sealing performance, strong puncture force, convenience in fetching, compact structure, convenience in manufacturing, flexibility and convenience in use and the like by improving the existing puncture outfit.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims (9)

1. The utility model provides an abdominal cavity puncture ware, is including puncture needle subassembly (1), seal valve subassembly (2) and sheath pipe subassembly (3) that can assemble together in proper order, puncture needle subassembly (1) including puncture core bar (1-1) and puncture head (1-2) of locating puncture core bar (1-1) one end, seal valve subassembly (2) including locating choke valve (2-3) in the valve body, sheath pipe subassembly (3) including sheath pipe (3-1), locate sheath pipe seat (3-2) of sheath pipe (3-1) one end and locate getting thing valve (3-3) in sheath pipe seat (3-2), its characterized in that: the choke valve (2-3) comprises a valve wall (2-3-1) which is provided with an opening (2-3-3) at the center and is of an integral trumpet-shaped structure, and the gradient of the valve wall (2-3-1) is gradually reduced from the central opening (2-3-3) of the valve wall (2-3-1) to the periphery of the valve wall (2-3-1);
a plurality of wrinkles (2-3-4) extending from the center of the valve wall (2-3-1) to the periphery are uniformly distributed on the valve wall (2-3-1), and the wrinkles (2-3-4) are formed by convex ribs arranged on the inner side of the valve wall (2-3-1) and grooves arranged on the outer side of the valve wall (2-3-1) and corresponding to the positions and shapes of the convex ribs; the sealing lip (2-3-7) at the central opening (2-3-3) of the valve wall (2-3-1) is provided with a trumpet-shaped outward turning structure, and a plurality of small convex ribs (2-3-8) extending along the central axis of the sealing lip (2-3-7) are uniformly distributed on the trumpet-shaped outward turning structure of the sealing lip (2-3-7).
2. A laparoscopic puncture instrument according to claim 1, wherein: the valve body of the sealing valve assembly (2) comprises an upper cover (2-1) and a lower cover (2-2), and the choke valve (2-3) is clamped between the upper cover (2-1) and the lower cover (2-2) through the periphery of a wavy elastic skirt edge (2-3-2) arranged on the periphery of the valve wall (2-3-1).
3. A laparoscopic puncture instrument according to claim 2, wherein: the inner side of the choke valve (2-3) is also provided with a conical protection device which is formed by interweaving a plurality of protection blades (2-4) and covers the inner side of the valve wall (2-3-1), the periphery of the protection device is clamped by a valve ring A (2-6) and a valve ring B (2-7) and is arranged in a cavity (2-3-5) surrounded by the upper part of the valve wall (2-3-1) and the elastic skirt edge (2-3-2).
4. A laparoscopic puncture instrument according to claim 3, wherein: the outer side of the choke valve (2-3) is also provided with a movable cover (2-5) which covers the outer side of the valve wall (2-3-1) and is provided with an opening in the center, the outer side surface of the movable cover (2-5) is a spherical surface, and the inner wall of a through hole in the lower part of the lower cover (2-2) can be matched with the spherical surface on the outer side of the movable cover (2-5) so that the movable cover (2-5) can perform relative rolling motion on the lower cover (2-2).
5. An abdominal cavity puncture instrument according to any one of claims 1 to 4, characterized in that: the puncture head (1-2) is provided with two arc-shaped lance walls (1-2-1), the two lance walls (1-2-1) are gradually reduced from the rear part to the front part of the puncture head (1-2) to form tip ends (1-2-3), and the two lance walls (1-2-1) are intersected at two sides to form side edges (1-2-2).
6. An abdominal cavity puncture instrument according to claim 5, wherein: puncture needle subassembly (1) still including locating puncture core bar (1-1) on keep away from core bar seat (1-3) of puncture head (1-2) one end, puncture core bar (1-1) inside cavity, the top of core bar seat (1-3) be equipped with puncture core bar (1-1) communicating apparatus passage mouth (1-4), and be equipped with on core bar seat (1-3) and be used for fixed hasp (1-5) of apparatus of fixed apparatus, core bar seat (1-3) on still be equipped with and be used for getting needle buckle (1-6) be connected or the separation with seal valve assembly (2).
7. An abdominal cavity puncture instrument according to claim 6, wherein: the core rod seat (1-3) is also provided with a reinforcing convex rib (1-7) at the periphery of the needle taking buckle (1-6).
8. An abdominal cavity puncture instrument according to claim 6, wherein: the fetching valve (3-3) in the sheath tube component (3) adopts a three-petal structure.
9. A laparoscopic puncture instrument according to claim 8, wherein: an air injection valve (3-4) communicated with the sheath tube (3-1) is further arranged on the sheath tube seat (3-2) of the sheath tube assembly (3), operation handles (3-2-1) convenient to hold are further arranged on two sides of the sheath tube seat (3-2), and threading holes (3-2-2) convenient to connect and fix are formed in the operation handles (3-2-1).
CN201710438511.5A 2017-06-12 2017-06-12 Abdominal cavity puncture outfit Expired - Fee Related CN107115136B (en)

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Publication number Priority date Publication date Assignee Title
CN108309412B (en) * 2018-03-12 2024-04-16 杰尼肯(苏州)医疗器械有限公司 Puncture sleeve device for laparoscopic puncture outfit
CN108771559A (en) * 2018-05-29 2018-11-09 成都维信电子科大新技术有限公司 A kind of abdominal cavity puncture outfit
CN108969068B (en) * 2018-07-13 2024-03-05 浙江优亿医疗器械股份有限公司 Puncture outfit with improved structure
CN110251175A (en) * 2019-07-09 2019-09-20 北京天助畅运医疗技术股份有限公司 A kind of laparoscope puncture stitching unstrument
CN113876405A (en) * 2021-11-10 2022-01-04 贵州省人民医院 Abdominal cavity puncture outfit for medical operation and puncture method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040260244A1 (en) * 2001-08-31 2004-12-23 Piechowicz Michael E. Seals for trocars
US7789861B2 (en) * 2006-04-18 2010-09-07 Ethicon Endo-Surgery, Inc. Pleated trocar seal
CN201461935U (en) * 2009-07-30 2010-05-12 南方天合底盘系统有限公司 High-intensity sealing leather collar
CN102335031B (en) * 2011-08-01 2013-06-05 安徽奥弗医疗设备科技有限公司 Disposable puncture outfit
CN202408985U (en) * 2011-12-30 2012-09-05 安徽奥弗医疗设备科技有限公司 Rotatable sealing ring assembly in puncture outfit
CN207949874U (en) * 2017-06-12 2018-10-12 常州艾隆精密机械有限公司 A kind of abdominal cavity puncture outfit

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