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CN119837611B - Puncture outfit sleeve assembly - Google Patents

Puncture outfit sleeve assembly

Info

Publication number
CN119837611B
CN119837611B CN202510315554.9A CN202510315554A CN119837611B CN 119837611 B CN119837611 B CN 119837611B CN 202510315554 A CN202510315554 A CN 202510315554A CN 119837611 B CN119837611 B CN 119837611B
Authority
CN
China
Prior art keywords
sleeve
sealing film
connecting section
instrument
limiting ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202510315554.9A
Other languages
Chinese (zh)
Other versions
CN119837611A (en
Inventor
钱星宇
周丹勋
何徐盛
刘禹希
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weizhi Suzhou Medical Technology Co ltd
Original Assignee
Weizhi Suzhou Medical Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weizhi Suzhou Medical Technology Co ltd filed Critical Weizhi Suzhou Medical Technology Co ltd
Priority to CN202510315554.9A priority Critical patent/CN119837611B/en
Publication of CN119837611A publication Critical patent/CN119837611A/en
Application granted granted Critical
Publication of CN119837611B publication Critical patent/CN119837611B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3498Valves therefor, e.g. flapper valves, slide valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/34Trocars; Puncturing needles
    • A61B2017/347Locking means, e.g. for locking instrument in cannula

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The application provides a puncture outfit sleeve assembly, and relates to the technical field of puncture outfits. The puncture outfit sleeve assembly comprises a sleeve, a sealing film and a holding piece, wherein the sealing film is arranged in the sleeve, the holding piece is partially arranged in the sleeve, the holding piece is connected with the top of the sleeve and is abutted to the sealing film, the holding piece is used for holding an external instrument, so that the instrument is positioned in the center of the sleeve, and the puncture outfit sleeve assembly can reduce the damage of the sealing film.

Description

Puncture outfit sleeve assembly
Technical Field
The application relates to the technical field of puncture outfits, in particular to a puncture outfit sleeve assembly.
Background
Along with the continuous popularization in laparoscopic minimally invasive surgery, the puncture outfit which is indispensable in the minimally invasive surgery is also becoming familiar to doctors. A doctor establishes a pneumoperitoneum in a laparoscopic minimally invasive surgery and establishes a surgical channel by using a puncture outfit, so that various instruments (such as an ultrasonic knife, an anastomat and the like) can enter the abdominal cavity to perform surgical operations.
In the use process of the existing puncture outfit, an external instrument can be inserted into the puncture outfit, so that a sealing film is easy to damage, and then the sealing film cannot wrap the instrument in real time, and the situation of air leakage occurs.
Disclosure of Invention
Objects of the present application include, for example, providing a penetrator cannula assembly that reduces damage to a sealing membrane.
Embodiments of the application may be implemented as follows:
The embodiment of the application provides a puncture outfit sleeve assembly, which comprises a sleeve, a sealing film and a holding piece, wherein the sealing film is arranged in the sleeve, the holding piece is partially arranged in the sleeve, the holding piece is connected with the top of the sleeve and is abutted with the sealing film, and the holding piece is used for holding an external instrument so as to enable the instrument to be positioned in the center of the sleeve.
Optionally, the holding piece includes fixed lid, sleeve and along a plurality of elastic structure that sleeve circumference set up, fixed lid with the sleeve is connected, fixed lid with sheathed tube top is connected, a plurality of elastic structure are used for jointly cooperating the instrument of holding outside.
Optionally, the elastic structure includes integrated into one piece's first linkage segment and second linkage segment, first linkage segment keep away from the one end of second linkage segment with the sleeve is connected, the second linkage segment is kept away from first linkage segment's one end is the free end, first linkage segment orientation telescopic inside extends, second linkage segment orientation telescopic outside extends.
Optionally, the connection part of the first connection section and the second connection section is provided with an arc surface, and the arc surfaces of the elastic structures are located on the same circumference.
Optionally, a first limiting ring is arranged on the sealing film, and the bottom end of the sleeve is matched with the first limiting ring, so that the sleeve coincides with the central axis of the sealing film.
Optionally, the surface of the sealing film is arc-shaped, and the thickness of the sealing film gradually decreases along the direction deviating from the holding piece.
Optionally, the fixed cover is provided with a first opening for the instrument to enter, the fixed cover is provided with a second limiting ring and a third limiting ring, and the top end of the sleeve stretches into between the second limiting ring and the third limiting ring, wherein the diameter of the third limiting ring is larger than that of the second limiting ring.
Optionally, a limiting bayonet is arranged on the third limiting ring, a limiting part is arranged on the sleeve, and the limiting part is clamped into the limiting bayonet.
Optionally, the fixed cover and the sleeve are integrally formed.
Optionally, the puncture outfit sleeve assembly further comprises a choke valve, the choke valve is arranged in the sleeve, and the sealing film part extends into the choke valve.
Optionally, the choke valve includes integrated into one piece's installation department and choke portion, sheathed tube inside is equipped with annular bulge, be equipped with annular groove on the installation department, annular bulge with annular groove cooperatees, be equipped with the second opening on the choke portion.
Optionally, the outer surface of the air blocking part is arc-shaped.
The puncture outfit sleeve assembly has the beneficial effects that, for example, in order to reduce damage of the sealing film, the puncture outfit sleeve assembly is designed and comprises a sleeve, the sealing film and a holding piece, wherein the sealing film is arranged in the sleeve, the holding piece is partially arranged in the sleeve, the holding piece is connected with the top of the sleeve and is abutted with the sealing film, and the holding piece is used for holding an external instrument so as to enable the instrument to be positioned in the center of the sleeve. Through setting up the staple bolt piece at sealing membrane front end, when outside apparatus gets into the sleeve pipe, the staple bolt piece can staple bolt apparatus to make the apparatus be in sheathed tube center, the apparatus just is difficult for causing the damage to sealing membrane this moment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a spike sheath assembly in accordance with an embodiment of the present application;
FIG. 2 is a partial cross-sectional view of a spike sheath assembly in accordance with an embodiment of the present application;
FIG. 3 is a schematic view of a first type of grip according to an embodiment of the present application;
FIG. 4 is a schematic view of a first type of grip according to a second view of an embodiment of the present application;
FIG. 5 is a schematic view of a sealing film according to an embodiment of the present application;
FIG. 6 is a schematic view of a stationary cover according to an embodiment of the present application;
FIG. 7 is a schematic view of a partial structure of a sleeve according to an embodiment of the present application;
FIG. 8 is a schematic view of a second type of grip according to an embodiment of the present application;
FIG. 9 is a schematic diagram of a choke valve according to an embodiment of the present application.
The icons are 100-sleeve, 110-fixed column, 120-annular bulge, 130-extension tube, 131-luer channel, 132-mounting hole, 200-sealing film, 210-first limit ring, 220-second reinforcing rib, 300-holding piece, 310-sleeve, 311-rectangular through hole, 312-third reinforcing rib, 320-elastic structure, 321-first connecting section, 322-second connecting section, 323-arc surface, 324-first reinforcing rib, 330-limit part, 400-fixed cover, 410-first opening, 420-second limit ring, 430-third limit ring, 431-limit bayonet, 440-fixed hole, 450-guiding cambered surface, 460-buckle, 500-choke valve, 510-mounting part, 511-annular groove, 520-choke part, 521-second opening and 600-gas injection valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.
As disclosed in the background art, in the use process of the existing puncture outfit, an external instrument is inserted into the puncture outfit, and once the instrument is in an inclined state or is not positioned in the center of the sleeve, the instrument is easy to damage the sealing film, so that the sealing film cannot wrap the instrument in real time, and air leakage occurs. Embodiments of the present application provide a puncture outfit sleeve assembly, which is at least used for solving the above-mentioned technical problems.
Referring to fig. 1 and 2, the puncture outfit cannula assembly provided by the embodiment of the application comprises a cannula 100, a sealing film 200 and a holding member 300, wherein the sealing film 200 is arranged in the cannula 100, the holding member 300 is partially arranged in the cannula 100, the holding member 300 is connected with the top of the cannula 100 and is abutted to the sealing film 200, and the holding member 300 is used for holding an external instrument so as to enable the instrument to be positioned in the center of the cannula 100.
The sleeve 100 is internally provided with an installation cavity, the sealing film 200 and the holding piece 300 are both arranged in the installation cavity, and when the holding piece 300 is connected with the top of the sleeve 100, the holding piece 300 tightly presses and fixes the sealing film 200 in the installation cavity.
Through setting up the staple bolt piece 300 at sealing membrane 200 front end, when outside apparatus gets into sleeve pipe 100, staple bolt piece 300 can staple bolt apparatus to make the apparatus be in the center of sleeve pipe 100, the apparatus just is difficult for causing the damage to sealing membrane 200 this moment.
Referring to fig. 3 and 4, in the present embodiment, the holding member 300 includes a fixed cover 400, a sleeve 310, and a plurality of elastic structures 320 circumferentially arranged along the sleeve 310, wherein the fixed cover 400 is connected with the sleeve 310, the fixed cover 400 is connected with the top of the sleeve 100, and the plurality of elastic structures 320 are used for cooperatively holding an external device.
The spring structures 320 are resilient so that when an external instrument is received in the sleeve 310, the plurality of spring structures 320 cooperate to hold the instrument together so that the instrument is centered in the cannula 100.
In this embodiment, the elastic structure 320 includes a first connecting section 321 and a second connecting section 322 that are integrally formed, wherein an end of the first connecting section 321 away from the second connecting section 322 is connected with the sleeve 310, an end of the second connecting section 322 away from the first connecting section 321 is a free end, the first connecting section 321 extends toward the inside of the sleeve 310, and the second connecting section 322 extends toward the outside of the sleeve 310.
The sleeve 310 is provided with a plurality of rectangular through holes 311 along the circumferential direction, the rectangular through holes 311 are in one-to-one correspondence with the elastic structures 320, one end of the first connecting section 321, which is far away from the second connecting section 322, is connected to the inner top wall of the rectangular through hole 311, the first connecting section 321 extends towards the inside of the sleeve 310, the surface of the first connecting section 321 is a conical surface which is inclined downwards, the second connecting section 322 extends towards the outside of the sleeve 310, the surface of the second connecting section 322 is an arc surface, and the first connecting section 321 and the second connecting section 322 jointly form the elastic structure 320 which protrudes towards the inside of the sleeve 310 so as to hold the instrument.
Further, the connection between the first connecting section 321 and the second connecting section 322 is provided with an arc surface 323, and the arc surfaces 323 of the plurality of elastic structures 320 are located on the same circumference.
In a section parallel to the top surface of the sleeve 310, arcuate surfaces 323 on the plurality of resilient structures 320 are located on the same circumference, the plurality of arcuate surfaces 323 cooperatively engaging the holding instrument such that the instrument is centered in the sleeve 310.
It should be noted that the diameter of the circumference should match the diameter of the largest instrument that is allowed to pass through, and that different sizes of scaling adjustments may be made to the circumference for different models of penetrators. For example, a 10mm maximum diameter instrument is allowed to enter, where the arcuate surfaces 323 of the plurality of resilient structures 320 enclose a circumference having a diameter of 9-10mm, so that excessive forces are not applied to affect operation while holding the instrument.
In addition, a first reinforcing rib 324 is provided between the first connection section 321 and the second connection section 322.
By providing first stiffener 324 between first connecting section 321 and second connecting section 322, the holding force of spring structure 320 on the instrument can be increased, allowing the instrument to better remain in the center of cannula 100.
Referring to fig. 5, in the present embodiment, a first stop collar 210 is disposed on the sealing film 200, and the bottom end of the sleeve 310 is matched with the first stop collar 210, so that the sleeve 310 coincides with the central axis of the sealing film 200.
The first limiting ring 210 is arranged by the top of the sealing film 200 in an upward protruding mode, the bottom end of the sleeve 310 stretches into the inner side of the first limiting ring 210 and is attached to the first limiting ring 210, so that the sleeve 310 coincides with the central axis of the sealing film 200, and damage to the sealing film 200 caused by dislocation of the sleeve 310 and the sealing film 200 is avoided.
In this embodiment, the surface of the sealing film 200 is arc-shaped, and the thickness of the sealing film 200 gradually decreases in a direction away from the holding member 300.
The sealing film 200 is provided with a central hole through which an instrument passes, the inner and outer surfaces of the sealing film 200 main body are arc-shaped, the thinner the sealing film 200 is, the thinner the thickness of the part close to the central hole is, the instrument only receives the pulling force of the sealing film 200 near the central hole when entering the sealing film 200, so that the instrument can move smoothly. When the instrument is withdrawn, even if the portion of the sealing film 200 near the center hole is folded due to the thinner thickness of the portion of the sealing film 200 near the center hole, the portion of the sealing film 200 near the center hole is pulled by the portion of the sealing film 200 far from the center hole to be restored due to the thicker thickness of the portion of the sealing film 200 far from the center hole.
The clasping action of the clasping member 300 on the apparatus prevents the sealing membrane 200 from being broken due to the long-time pulling of the sealing membrane 200 during the operation, and the biased pulling of the central hole of the sealing membrane 200 during the use of the apparatus is avoided to the maximum extent.
Further, second reinforcing ribs 220 are provided on the outer surface of the sealing film 200.
The second reinforcing ribs 220 are provided along the outer surface of the body of the sealing film 200 in plurality, which can enhance the strength of the sealing film 200 and also can quickly reset the portion of the sealing film 200 near the center hole after being folded.
Referring to fig. 6, in some embodiments, the fixing cover 400 and the sleeve 310 are in a split structure, the fixing cover 400 is provided with a first opening 410 for an instrument to enter, the first opening 410 is communicated with the sleeve 310, the fixing cover 400 is provided with a second limiting ring 420 and a third limiting ring 430, and the top end of the sleeve 310 extends into between the second limiting ring 420 and the third limiting ring 430, wherein the diameter of the third limiting ring 430 is larger than that of the second limiting ring 420.
The second stop collar 420 and the third stop collar 430 extend towards the inside of the sleeve 100, the second stop collar 420 and the third stop collar 430 are coaxially arranged, the top end of the sleeve 310 extends into the space between the second stop collar 420 and the third stop collar 430, and the second stop collar 420 and the third stop collar 430 cooperate together to play a stop role on the sleeve 310, so that the first opening 410 coincides with the central axis of the sleeve 310.
Further, a limiting bayonet 431 is provided on the third limiting ring 430, a limiting portion 330 is provided on the sleeve 310, and the limiting portion 330 is clamped into the limiting bayonet 431.
By engaging the stop 330 into the stop bayonet 431, the securing cap 400 prevents the sleeve 310 from rotating, thereby preventing the sleeve 310 from rotating during insertion and removal of the instrument.
Optionally, two limiting bayonets 431 are disposed on the third limiting ring 430, and correspondingly, two limiting portions 330 are disposed on the sleeve 310, and the two limiting portions 330 are respectively engaged into the two limiting bayonets 431. The limiting portion 330 is protruding on the outer surface of the sleeve 310, and the limiting portion 330 may be a limiting piece or a limiting post. Referring to fig. 7, in some embodiments, a plurality of fixing holes 440 are formed in the fixing cover 400 along the circumferential direction, a plurality of fixing posts 110 are formed at the top of the sleeve 100, and the plurality of fixing posts 110 are engaged with the plurality of fixing holes 440 in a one-to-one correspondence.
The fixing holes 440 are disposed on the surface of the fixing cover 400 facing the inner side of the sleeve 100, and the fixing columns 110 are inserted into the fixing holes 440 in a one-to-one correspondence manner, and the fixing columns 110 and the fixing holes 440 are optionally in interference fit, so that the fixing cover 400 and the sleeve 100 are relatively fixed.
In other embodiments, referring to fig. 8, the fixing cover 400 is integrally formed with the sleeve 310, the fixing cover 400 is connected with the top of the sleeve 100 through a buckle 460, and a third reinforcing rib 312 is circumferentially arranged on the surface of the outer side of the sleeve 310.
In the case that the fixing cover 400 is integrally formed with the sleeve 310, the holding position is integrally moved upward, the first reinforcing rib 324 provided between the first connecting section 321 and the second connecting section 322 can be eliminated, and the overall strength of the holding member 300 can be ensured by providing the third reinforcing rib 312 on the sleeve 310.
Referring to fig. 1, in the present embodiment, the fixing cover 400 is provided with a guide arc surface 450 at the first opening 410.
The guide curve 450 functions to guide an instrument into the cannula 100. When the instrument contacts the guide curve 450, the guide curve 450 can guide the instrument into the first opening 410.
The height of the second limiting ring 420 is greater than that of the third limiting ring 430, the second limiting ring 420 can be in contact with an instrument, after the instrument enters the first opening 410 along the guiding cambered surface 450, the instrument can collide with the second limiting ring 420, so that the instrument naturally deviates to coincide with the central axis of the sleeve 100 under the condition of continuing to push, and the instrument can be completely corrected just when entering the sleeve 100, thereby limiting the angle when entering the instrument and preventing the instrument from being blocked into the rectangular through hole 311 corresponding to the elastic structure 320.
Referring to fig. 9, in the present embodiment, the puncture outfit sleeve assembly further includes a choke valve 500, the choke valve 500 is disposed inside the sleeve 100, and the sealing film 200 partially extends into the choke valve 500.
The choke valve 500 can maintain the seal in the sleeve 100 when no instrument passes through, the sealing film 200 can maintain the seal in the sleeve 100 when an instrument passes through, and the choke valve 500 and the sealing film 200 form a double sealing structure.
Further, the choke valve 500 includes an integrally formed mounting portion 510 and a choke portion 520, the inside of the sleeve 100 is provided with an annular protrusion 120, the mounting portion 510 is provided with an annular groove 511, the annular protrusion 120 is matched with the annular groove 511, and the choke portion 520 is provided with a second opening 521.
An annular protrusion 120 facing the fixing cap 400 is provided in the installation cavity of the sleeve 100, and the annular protrusion 120 is matched with the annular groove 511, so that the choke valve 500 is positioned at the center of the sleeve 100.
In the case that the fixing cap 400 is fixed to the top of the sleeve 100, the fixing cap 400 presses the grip 300, the grip 300 presses the sealing film 200, the sealing film 200 presses the choke valve 500, and the annular groove 511 on the choke valve 500 is tightly fitted with the annular protrusion 120 on the sleeve 100, so that seals are formed between the fixing cap 400 and the grip 300, between the grip 300 and the sealing film 200, between the sealing film 200 and the choke valve 500, and between the choke valve 500 and the sleeve 100.
In this embodiment, the outer surface of the air blocking portion 520 is arc-shaped.
The second opening 521 on the choke 520 is cross-shaped, and when the instrument enters, the second opening 521 is pushed open, and when the instrument exits, the second opening 521 returns to its original shape. The outer surface of the choke 520 is designed to be arc-shaped, which is beneficial to automatically closing and restoring the second opening 521 when the instrument is withdrawn. After the second opening 521 is opened for a long time, the tolerance limit of the material itself may be reached and cannot be fully recovered, and the arc-shaped design makes the second opening 521 capable of recovering more material volume under the condition that the tolerance limit of the material cannot be raised, so that the time that the second opening 521 can be opened by the instrument is prolonged.
In this embodiment, the puncture outfit cannula assembly further comprises an air injection valve 600, wherein the air injection valve 600 is disposed on the cannula 100.
An extension tube 130 is arranged at one side of the sleeve 100, a luer channel 131 is arranged in the extension tube 130, a mounting hole 132 perpendicular to the axis of the luer channel 131 is arranged on the extension tube 130, an air injection valve 600 is arranged in the mounting hole 132, and the opening and closing of the luer channel 131 can be controlled by rotating the air injection valve 600, so that additional air is conveyed or pneumoperitoneum is released according to the operation requirement.
The mounting process of the puncture outfit sleeve assembly provided by the embodiment of the application comprises the following steps of reversely placing the fixed cover 400, reversely assembling the holding piece 300, the sealing film 200 and the choke valve 500 in sequence, reversely sleeving the holding piece 300, the sealing film 200 and the choke valve 500 on the sleeve 100, and carrying out preliminary pre-compression, wherein the puncture outfit sleeve assembly can be positively placed on a tool to carry out complete close-fitting compression, so that the assembly of the puncture outfit sleeve assembly is completed.
The puncture outfit sleeve assembly provided by the embodiment of the application has the advantages that the holding piece 300 has a certain holding effect on the instrument through the plurality of elastic structures 320, so that the instrument and the whole puncture outfit sleeve assembly are integrated, the instrument is maintained at the central position of the sleeve 100, the biased pulling of the instrument on the central hole of the sealing film 200 is avoided to the greatest extent, the sealing film 200 is prevented from being broken due to long-time pulling in operation, the distance between the sealing film 200 and the fixed cover 400 is increased due to the holding piece 300 arranged between the sealing film 200 and the fixed cover 400, and when the instrument enters and reaches the sealing film 200, the front end of the instrument can be basically aligned with the central hole of the sealing film 200 even if the instrument is skewed to a certain extent, so that the sealing film 200 is prevented from being punctured by the instrument.
In summary, the embodiment of the application provides a puncture outfit sleeve assembly, which comprises a sleeve 100, a sealing film 200, a holding member 300 and a fixing cover 400, wherein the holding member 300 is arranged between the fixing cover 400 and the sealing film 200, so that the distance between the fixing cover 400 and the sealing film 200 is increased, and when an external instrument enters the sleeve 100, the holding member 300 can hold the instrument, so that the instrument is positioned in the center of the sleeve 100, and the instrument is not easy to damage the sealing film 200.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1.一种穿刺器套管组件,其特征在于,包括套管(100)、密封膜(200)和抱持件(300),所述密封膜(200)设置于所述套管(100)内,所述抱持件(300)部分设置于所述套管(100)内,所述抱持件(300)与所述套管(100)的顶部相连接,且与所述密封膜(200)抵接,所述抱持件(300)用于抱持外部的器械,以使所述器械处于所述套管(100)的中心;1. A trocar sleeve assembly, characterized in that it comprises a sleeve (100), a sealing film (200) and a holding piece (300), wherein the sealing film (200) is arranged in the sleeve (100), the holding piece (300) is partially arranged in the sleeve (100), the holding piece (300) is connected to the top of the sleeve (100) and abuts against the sealing film (200), and the holding piece (300) is used to hold an external instrument so that the instrument is located at the center of the sleeve (100); 所述抱持件(300)包括固定盖(400)、套筒(310)以及沿所述套筒(310)周向设置的多个弹力结构(320),所述固定盖(400)和所述套筒(310)相连接,所述固定盖(400)与所述套管(100)的顶部相连接,所述多个弹力结构(320)用于共同配合抱持外部的器械;The holding member (300) comprises a fixed cover (400), a sleeve (310), and a plurality of elastic structures (320) arranged along the circumference of the sleeve (310); the fixed cover (400) and the sleeve (310) are connected; the fixed cover (400) is connected to the top of the sleeve (100); and the plurality of elastic structures (320) are used to cooperate with each other to hold an external device; 所述弹力结构(320)包括一体成型的第一连接段(321)和第二连接段(322),所述第一连接段(321)远离所述第二连接段(322)的一端与所述套筒(310)相连接,所述第二连接段(322)远离所述第一连接段(321)的一端为自由端,所述第一连接段(321)朝向所述套筒(310)的内部延伸,所述第二连接段(322)朝向所述套筒(310)的外部延伸;The elastic structure (320) comprises an integrally formed first connecting section (321) and a second connecting section (322); an end of the first connecting section (321) away from the second connecting section (322) is connected to the sleeve (310); an end of the second connecting section (322) away from the first connecting section (321) is a free end; the first connecting section (321) extends toward the interior of the sleeve (310), and the second connecting section (322) extends toward the exterior of the sleeve (310); 所述第一连接段(321)和所述第二连接段(322)的连接处设置有弧形面(323),在与所述套筒(310)的顶面平行的截面上,多个所述弹力结构(320)的弧形面(323)位于同一圆周,所述多个弧形面(323)共同配合抱持所述器械,使得所述器械位于所述套筒(310)的中心;An arcuate surface (323) is provided at the connection between the first connecting section (321) and the second connecting section (322); on a cross section parallel to the top surface of the sleeve (310), a plurality of arcuate surfaces (323) of the elastic structure (320) are located on the same circumference; the plurality of arcuate surfaces (323) cooperate to hold the instrument, so that the instrument is located at the center of the sleeve (310); 所述套筒(310)与所述密封膜(200)的中心轴线重合;The central axis of the sleeve (310) coincides with the central axis of the sealing film (200); 所述套筒(310)沿周向设有多个矩形通孔(311),多个所述矩形通孔(311)与多个所述弹力结构(320)一一对应,所述第一连接段(321)远离所述第二连接段(322)的一端连接于所述矩形通孔(311)的内顶壁。The sleeve (310) is provided with a plurality of rectangular through holes (311) along the circumferential direction, the plurality of rectangular through holes (311) corresponding one-to-one to the plurality of elastic structures (320), and one end of the first connecting section (321) away from the second connecting section (322) is connected to the inner top wall of the rectangular through hole (311). 2.根据权利要求1所述的穿刺器套管组件,其特征在于,所述密封膜(200)上设有第一限位环(210),所述套筒(310)的底端与所述第一限位环(210)配合,以使所述套筒(310)与所述密封膜(200)的中心轴线重合。2. The puncture cannula assembly according to claim 1, characterized in that a first limiting ring (210) is provided on the sealing film (200), and the bottom end of the sleeve (310) cooperates with the first limiting ring (210) so that the central axis of the sleeve (310) coincides with the central axis of the sealing film (200). 3.根据权利要求1所述的穿刺器套管组件,其特征在于,所述密封膜(200)的表面呈弧形,沿背离所述抱持件(300)的方向,所述密封膜(200)的厚度逐渐减小。3. The puncture cannula assembly according to claim 1, characterized in that the surface of the sealing film (200) is arc-shaped, and the thickness of the sealing film (200) gradually decreases in a direction away from the holding member (300). 4.根据权利要求1所述的穿刺器套管组件,其特征在于,所述固定盖(400)上开设有供所述器械进入的第一开口(410),所述固定盖(400)上设有第二限位环(420)和第三限位环(430),所述套筒(310)的顶端伸入所述第二限位环(420)和所述第三限位环(430)之间,其中,所述第三限位环(430)的直径大于所述第二限位环(420)的直径。4. The puncture sleeve assembly according to claim 1 is characterized in that a first opening (410) for the instrument to enter is opened on the fixed cover (400), a second limiting ring (420) and a third limiting ring (430) are provided on the fixed cover (400), and the top end of the sleeve (310) extends between the second limiting ring (420) and the third limiting ring (430), wherein the diameter of the third limiting ring (430) is greater than the diameter of the second limiting ring (420). 5.根据权利要求4所述的穿刺器套管组件,其特征在于,所述第三限位环(430)上设置有限位卡口(431),所述套筒(310)上设置有限位部(330),所述限位部(330)卡入所述限位卡口(431)内。5. The trocar sleeve assembly according to claim 4, characterized in that a limiting snap-in (431) is provided on the third limiting ring (430), a limiting portion (330) is provided on the sleeve (310), and the limiting portion (330) is snapped into the limiting snap-in (431). 6.根据权利要求1所述的穿刺器套管组件,其特征在于,所述固定盖(400)和所述套筒(310)一体成型。6. The trocar sleeve assembly according to claim 1, characterized in that the fixing cover (400) and the sleeve (310) are integrally formed. 7.根据权利要求1所述的穿刺器套管组件,其特征在于,所述穿刺器套管组件还包括阻气阀(500),所述阻气阀(500)设置于所述套管(100)的内部,所述密封膜(200)部分伸入所述阻气阀(500)内。7. The trocar sleeve assembly according to claim 1, characterized in that the trocar sleeve assembly further comprises an air blocking valve (500), wherein the air blocking valve (500) is arranged inside the sleeve (100), and the sealing film (200) partially extends into the air blocking valve (500). 8.根据权利要求7所述的穿刺器套管组件,其特征在于,所述阻气阀(500)包括一体成型的安装部(510)和阻气部(520),所述套管(100)的内部设有环形凸起(120),所述安装部(510)上设有环形凹槽(511),所述环形凸起(120)与所述环形凹槽(511)相配合,所述阻气部(520)上设有第二开口(521)。8. The trocar sleeve assembly according to claim 7, characterized in that the air blocking valve (500) comprises an integrally formed mounting portion (510) and an air blocking portion (520), an annular protrusion (120) is provided inside the sleeve (100), an annular groove (511) is provided on the mounting portion (510), the annular protrusion (120) cooperates with the annular groove (511), and a second opening (521) is provided on the air blocking portion (520). 9.根据权利要求8所述的穿刺器套管组件,其特征在于,所述阻气部(520)的外表面呈弧形。9. The trocar sleeve assembly according to claim 8, characterized in that the outer surface of the air blocking portion (520) is arc-shaped.
CN202510315554.9A 2025-03-18 2025-03-18 Puncture outfit sleeve assembly Active CN119837611B (en)

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