CN110141325B - Air-blocking sealing piece and puncture outfit - Google Patents
Air-blocking sealing piece and puncture outfit Download PDFInfo
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- CN110141325B CN110141325B CN201910476631.3A CN201910476631A CN110141325B CN 110141325 B CN110141325 B CN 110141325B CN 201910476631 A CN201910476631 A CN 201910476631A CN 110141325 B CN110141325 B CN 110141325B
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- valve
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- clacks
- air
- valve body
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- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000035515 penetration Effects 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 8
- 239000000835 fiber Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 210000003815 abdominal wall Anatomy 0.000 description 5
- 210000000683 abdominal cavity Anatomy 0.000 description 3
- 238000002357 laparoscopic surgery Methods 0.000 description 3
- 230000001739 rebound effect Effects 0.000 description 3
- 241000405070 Percophidae Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000005267 amalgamation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- 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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3419—Sealing means between cannula and body
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (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)
- Pathology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides an air-blocking sealing sheet and a puncture outfit, which comprise a fixed lantern ring and an elastic valve wall group arranged on one side of the fixed lantern ring, wherein the elastic valve wall group comprises at least two sheet valve clacks and an elastic limiting ring sleeved on the valve clacks, and the valve clacks are mutually spliced and form an air inlet for a puncture cone to pass through at one end far away from the fixed lantern ring. The air blocking sealing sheet and the puncture outfit provided by the invention can be used for being connected with an external structure, the puncture cone can pass through the fixed lantern ring, the valve clacks can be closed under the limit of the elastic limiting ring, the air inlets are closed when the valve clacks are mutually closed, the valve clacks can be opened under the extrusion of the puncture cone, and the valve clacks can be always abutted against the puncture cone under the fiber of the elastic limiting ring, so that the extrusion force and the resilience force of the valve clack group to the puncture cone can be enhanced, and the problem that the operation is influenced due to the air leakage phenomenon after the puncture cone or an instrument is inserted is effectively avoided.
Description
Technical Field
The invention relates to the technical field of medical puncture instruments, in particular to an air blocking sealing piece and a puncture outfit.
Background
The disposable minimally invasive puncture outfit is an important instrument in laparoscopic surgery, is mainly applied to laparoscopic surgery such as surgical minimally invasive surgery, gynecological minimally invasive surgery, thoracic surgery, urinary surgery and the like, is an extra-thoracic and extra-abdominal endoscopic matched surgical instrument, and is used for a specialist to puncture an abdominal cavity in laparoscopic surgery, convey gas in the abdominal cavity and establish a channel for the endoscope and the surgical instrument to enter and exit the abdominal cavity from the outside.
The disposable puncture tube generally comprises a puncture sleeve and a puncture cone, wherein the puncture cone can penetrate into the puncture sleeve to assist the puncture outfit to insert into the abdominal wall, a channel for a minimally invasive surgical instrument to pass through is established, a gas-blocking sealing piece is arranged in the puncture sleeve, the gas-blocking sealing piece can prevent gas leakage when no instrument or puncture cone is inserted, and the plane sealing piece can prevent gas leakage when the instrument or puncture cone is inserted, so that the operation is guaranteed not to be influenced by gas leakage.
For the air-blocking sealing sheet, in chinese patent No. CN201610097994.2, the authorized bulletin day is 2017, 10, 24, and the invention is named: in a case of the disposable puncture outfit, it discloses a gas-blocking sealing piece, the gas-blocking sealing piece comprises a sealing cone, the front end part of the sealing cone is provided with a gas-blocking sealing piece air inlet, and the gas-blocking sealing piece air inlet is provided with a straight or cross air inlet. But adopt and set up the mode of a style of calligraphy or cross air inlet in the bottom that hinders the airtight piece, puncture awl can insert in this air inlet, hinder the resilience effect of airtight piece relatively poor, the air inlet can not be quick the amalgamation after extracting puncture awl, probably has the gas leakage phenomenon and influences operation.
Disclosure of Invention
The invention aims to provide an air-blocking sealing piece and a puncture outfit, which are used for solving the technical problems that the rebound effect of the air-blocking sealing piece in the prior art is poor, an air inlet cannot be quickly combined after a puncture cone is pulled out, and the air leakage phenomenon possibly exists to influence operation.
In order to achieve the above purpose, the invention adopts the following technical scheme: provided is an airtight seal sheet comprising: the valve comprises a fixed sleeve ring and an elastic valve wall group arranged on one side of the fixed sleeve ring, wherein the elastic valve wall group comprises at least two valve clacks and an elastic limiting ring sleeved on the valve clacks, and the valve clacks are mutually spliced and form an air inlet for a puncture cone to pass through at one end far away from the fixed sleeve ring.
Further, the valve clack comprises a connecting surface and a lower concave surface arranged in the middle of the connecting surface, the connecting surfaces of the adjacent valve clacks can be connected, and the inner side of the lower concave surface can be abutted to the puncture cone.
Further, a limiting groove for fixing the elastic limiting ring is formed in the outer side of the connecting surface.
Further, the number of the valve clacks is 4, and the valve clacks are mutually spliced to form a cross-shaped air inlet.
The invention also provides a puncture outfit, which comprises the air blocking sealing piece in any one of the above strips.
Further, the device also comprises a puncture cone, a valve body with an opening at one end, a sleeve fixedly connected with the valve body and an upper cover covering the opening, wherein the air-blocking sealing piece is arranged in the valve body, and the puncture cone sequentially penetrates through the upper cover, the air-blocking sealing piece, the valve body and the sleeve.
Further, fixed buckles are arranged on two sides of the valve body, and a first groove buckled with the fixed buckles is formed in the inner side of the upper cover.
Further, a first step groove is formed in the inner side wall of the valve body, a second groove matched with the first step groove is formed in the inner side of the upper cover, and the first step groove is matched with the second groove and is clamped with the fixing lantern ring.
Further, a plurality of anti-slip rings are arranged outside the sleeve, and the anti-slip rings and the sleeve are integrally formed.
Further, the anti-slip ring is provided with a first inclined surface and a second inclined surface which are obliquely arranged on the sleeve, the first inclined surface is connected with the second inclined surface, and the joint of the first inclined surface and the second inclined surface is arc-shaped.
The air-blocking sealing piece and the puncture outfit provided by the invention have the beneficial effects that: compared with the prior art, the air blocking sealing piece and the puncture outfit can be used for being connected with an external structure, the puncture cone can penetrate through the fixed lantern ring, the valve clacks can be closed towards the center under the limit of the elastic limiting ring, the air inlets are closed when the valve clacks are mutually closed, the valve clacks can be opened under the extrusion of the puncture cone, and the valve clacks can be always abutted against the puncture cone under the fiber of the elastic limiting ring, so that the extrusion force and the resilience force of the valve clack group on the puncture cone can be enhanced, and the problem that the operation is influenced due to the air leakage phenomenon after the puncture cone or an instrument is inserted is effectively avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a closed three-dimensional structure of an airtight seal provided in an embodiment of the present invention;
Fig. 2 is a schematic perspective view of another angle of closing of the airtight sealing sheet according to the embodiment of the present invention;
FIG. 3 is a schematic view showing an open perspective structure of an airtight seal provided in an embodiment of the present invention;
Fig. 4 is a schematic perspective view of a gas barrier seal and a puncture cone according to an embodiment of the present invention;
FIG. 5 is an exploded view of the puncture outfit according to the embodiment of the present invention, wherein the puncture cone is not shown;
FIG. 6 is a perspective view of a puncture outfit according to an embodiment of the present invention, wherein a puncture cone is not shown;
FIG. 7 is a schematic view of a part of the enlarged structure of the portion A in FIG. 6;
FIG. 8 is a schematic front view of the puncture outfit of FIG. 6;
Fig. 9 is a sectional view of the structure taken along the line B-B in fig. 8.
Reference numerals illustrate:
1. A valve body; 2. a sleeve; 3. an upper cover; 4. a gas-blocking sealing sheet; 5. a planar sealing sheet; 6. an air injection valve; 7. a puncture cone; 11. a fixing buckle; 12. a limit protrusion; 13. a first stepped groove; 21. an anti-slip ring; 211. a first inclined surface; 212. a second inclined surface; 31. a first groove; 32. a fixing hole; 33. a second groove; 41. a fixed collar; 42. a valve flap; 43. an air inlet; 44. an elastic limit ring; 421. a connection surface; 422. a concave surface; 423. and a limit groove.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1 to 4, the air blocking sealing sheet provided by the present invention will be described. The air blocking sealing piece 4 comprises a fixed collar 41 and an elastic valve wall group arranged on one side of the fixed collar 41, wherein the elastic valve wall group comprises at least two valve clacks 42 and an elastic limiting ring 44 sleeved on the valve clacks 42, and the valve clacks 42 are mutually spliced and form an air inlet 43 for a puncture cone 7 to pass through at one end far away from the fixed collar 41.
Compared with the prior art, the air blocking sealing piece 4 provided by the invention has the advantages that the fixed lantern ring 41 can be used for being connected with an external structure and can be penetrated by the puncture cone 7, the valve clack 42 can be closed towards the center under the limit of the elastic limit ring 44, the air inlet 43 is closed when the valve clacks 42 are mutually closed, the valve clack 42 can be opened under the extrusion of the puncture cone 7, and the valve clack 42 can be always abutted against the puncture cone 7 under the fiber of the elastic limit ring 44, so that the extrusion force and resilience force of the elastic valve wall group on the puncture cone 7 can be enhanced, and the problem that the operation is influenced due to the air leakage phenomenon after the puncture cone 7 or an instrument is inserted can be effectively avoided.
Specifically, the elastic valve wall group and the fixing collar 41 are integrally formed, and the fixing collar 41 is generally a fixing step that can be fixed between the valve body 1 and the upper cover 3, and is a complete torus, the elastic valve wall group is located at one side of the fixing collar 41, and the valve flaps 42 can be mutually spliced.
Further, referring to fig. 1 to 4, as a specific embodiment of the air blocking seal provided by the present invention, the valve clack 42 includes a connecting surface 421 and a concave surface 422 disposed in the middle of the connecting surface 421, the connecting surfaces 421 of adjacent valve clacks 42 may be connected, and an inner side of the concave surface 422 may abut against the puncture cone 7. Specifically, the connection surfaces 421 are located on opposite sides of the lower concave surface 422, the connection surfaces 421 between all the valve flaps 42 are connected to form a circular surface, and the lower concave surface 422 can abut against the puncture cone 7, so that the connection surfaces 421 and the fixing collar 41 incline, and gaps are formed between the adjacent valve flaps 42. Wherein the plurality of flaps 42 are joined to one another to form a seamless shape, which may be inverted cone, duckbill or multi-angular duckbill.
Wherein, only one end of each valve clack 42 is directly integrated with the fixed collar 41, the connecting surfaces 421 on both sides are on the same surface, the lower concave surface 422 is formed by the concave surface of the connecting part, the cross section of the lower concave surface 422 on one side far away from the fixed collar 41 forms an included angle, and the sum of the degrees of the included angles of all the lower concave surfaces 422 is 360 degrees, so that a plurality of valve clacks 42 can be combined to form a circle.
Further, referring to fig. 1 to 4, as a specific embodiment of the air blocking sealing piece provided by the present invention, a limiting groove 423 for fixing the elastic limiting ring 44 is provided on the outer side of the connecting surface 421. Specifically, the elastic limiting ring 44 is sleeved at one end of the valve clack 42 away from the fixed collar 41, the elastic return capability of the valve clack 42 is enhanced through the elastic limiting ring 44, the valve clacks 42 are not in direct contact, the valve clacks 42 are fixedly connected with the fixed collar 41 only through the valve clacks 42, the valve clacks 42 are fixedly connected, the limiting grooves 423 can be used for fixing the elastic limiting ring 44, so that the position stability of the elastic limiting ring 44 is ensured, the elastic limiting ring 44 is prevented from sliding or loosening to influence the rebound effect of the whole air blocking sealing piece 4, and the fixed connection among the valve clacks 42 can be further enhanced. The mode that adopts a plurality of valve clacks 42 and is connected by fixed lantern ring 41, the resilience effect between whole gas seal piece 4 is better, compares in the mode of seting up a style of calligraphy or cross air inlet 43 in the bottom, and the back gas seal piece 4 that hinders after extracting puncture awl or surgical instrument is to rebound to sealing state relies on self material or structure, inserts puncture awl or surgical instrument time longer, and the recovery effect can be variation, but this gas seal piece 4's air inlet 43 can realize sealedly to the resilience is better.
Further, referring to fig. 1 to 4, as a specific embodiment of the airtight sheet provided by the present invention, the number of the valve flaps 42 is 4, and the valve flaps 42 are spliced with each other and form a cross-shaped air inlet 43. Specifically, the number of the valve clacks 42 is 4, the size and shape of each valve clack 42 are consistent, the connecting parts of the four valve clacks 42 are directly abutted, the cross section of the lower concave surface 422 at the side far away from the fixed collar 41 forms a right angle, the cross section of the air blocking sealing piece 4 at the side far away from the fixed collar 41 is in a cross shape, the air blocking sealing piece 4 has a better rebound effect, and the insertion of the puncture cone 7 is simpler. Of course, according to the actual situation and specific requirements, in other embodiments of the present invention, the number of the valve flaps 42 may be 5, 6 or more, and the gap between the valve flaps 42 after the puncture cone 7 is inserted is smaller, which is not limited only herein.
Referring to fig. 5 to 9, the present invention also provides a puncture outfit comprising the airtight sealing sheet 4 according to any one of the above embodiments.
According to the puncture outfit provided by the invention, the fixed lantern ring 41 can be used for being connected with the upper cover 3 or the valve body 1 of an external structure and can be penetrated by the puncture cone 7, the valve clack 42 can be closed towards the center under the limit of the elastic limit ring 44, the air inlet 43 is closed when the valve clacks 42 are closed, the valve clack 42 can be opened under the extrusion of the puncture cone 7, and the valve clack 42 can be always abutted against the puncture cone 7 under the fiber of the elastic limit ring 44, so that the extrusion force and resilience force of the elastic valve wall group to the puncture cone 7 can be enhanced, and the problem that the operation is influenced due to the air leakage phenomenon after the puncture cone 7 or an instrument is inserted is effectively avoided.
Further, referring to fig. 5 to 9, as a specific embodiment of the puncture outfit provided by the present invention, the puncture outfit further comprises a puncture cone 7, a valve body 1 with an opening at one end, a sleeve 2 fixedly connected with the valve body 1, and an upper cover 3 covering the opening, wherein the air-blocking sealing sheet 4 is arranged in the valve body 1, and the puncture cone 7 sequentially passes through the upper cover 3, the air-blocking sealing sheet 4, the valve body 1 and the sleeve 2. Specifically, the valve body 1, the sleeve 2 and the upper cover 3 can be combined into the puncture sleeve 2, the puncture cone 7 can penetrate through the puncture sleeve 2, the upper cover 3 is directly covered on the valve body 1, the air blocking sealing piece 4 is arranged inside the valve body 1 and seals the valve body 1, the plane sealing piece 5 can be further arranged inside the valve body 1, the plane sealing piece 5 is arranged between the valve body 1 and the upper cover 3, the plane sealing piece 5 can be adhered to the inside of the stepped groove of the upper cover in a bonding mode, the air blocking sealing piece 4 can prevent air leakage when no instrument or puncture cone 7 is inserted, and the plane sealing piece 5 can prevent air leakage when the instrument or puncture cone 7 is inserted. Preferably, an air injection valve 6 is arranged on one side of the valve body 1, and the air injection valve 6 is communicated with the valve body 1. The gas injection valve 6 is arranged on any side of the valve body 1, gas needs to be injected towards the cavity of the valve body 1 through the gas injection valve 6 in the operation process, gas injection towards the interior of the valve body 1 can be realized through the gas injection valve 6, and a gas injection switch can be further arranged on the gas injection valve 6.
Further, referring to fig. 5 and 9, as a specific embodiment of the puncture outfit provided by the present invention, the two sides of the valve body 1 are provided with fixing buckles 11, and the inner side of the upper cover 3 is provided with a first groove 31 buckled with the fixing buckles 11. Specifically, upper cover 3 and valve body 1 are direct to cooperate through fixed buckle 11 and first recess 31 to realize buckle fixed connection, the structure is comparatively simple simultaneously and does not need to increase extra part and increase the volume of whole valve body 1, can enough guarantee its sealed effect and connection stability, and the volume of valve body 1 is less, can avoid the operation hole site to be close when valve body 1 too big can produce the interference, influences the operation effect.
Preferably, referring to fig. 5 and 9, the outer edge of the valve body 1 is further provided with a limiting protrusion 12, and the upper cover 3 is provided with a fixing hole 32 matched with the limiting protrusion 12. Specifically, the outer edge of the valve body 1 is convexly provided with a flange for abutting against and limiting the upper cover 3, the limiting protrusion 12 is arranged on the flange, the limiting protrusion 12 can be arranged in the fixing hole 32 after the upper cover 3 is installed, and the cross section shape of the limiting protrusion 12 is consistent with the shape of the fixing hole 32, so that the relative position between the upper cover 3 and the valve body 1 can be limited through the limiting protrusion 12 and the fixing hole 32, and the upper cover 3 and the valve body 1 can be guaranteed to rotate when being fixed.
Further, referring to fig. 9, as a specific embodiment of the puncture outfit provided by the present invention, the inner side wall of the valve body 1 is provided with a first step groove 13, the inner side of the upper cover 3 is also provided with a second groove 33 matched with the first step groove 13, and the first step groove 13 is matched with the second groove 33 and is engaged with the fixing collar 41. Specifically, the airtight blocking piece 4 is installed inside the inner cavity of the valve body 1, the airtight blocking piece 4 can be abutted against the puncture cone 7 inserted into the valve body 1, so that the effect of blocking air is achieved, the installation step can be clamped between the upper cover 3 and the valve body 1, the clamping mode of the installation step can be clamping and clamping the upper cover 3 and the valve body 1 through the clamping, the airtight blocking piece 4 can be fixedly connected with the valve body 1 through the upper cover 3, the valve body 1 and the airtight blocking piece 4, the connection stability among the upper cover 3, the valve body 1 and the airtight blocking piece 4 can be ensured, and meanwhile, the structure is simple, the additional component is not required to be added, and the volume of the whole valve body 1 is increased.
The first step groove 13 is disposed on a side wall of the internal cavity of the valve body 1, the upper cover 3 is also provided with a second groove 33 on a side opposite to the first step groove 13, the mounting step can be directly clamped between the first step groove 13 and the second groove 33, and the mounting step can also have an end portion protruding, so that the mounting step can be clamped between the first step groove 13 and the second groove 33 in a buckling manner.
Further, referring to fig. 6 and 7, as a specific embodiment of the puncture outfit provided by the present invention, a plurality of anti-slip rings 21 are provided on the outside of the sleeve 2, and the anti-slip rings 21 and the sleeve 2 are integrally formed. Specifically, the anti-slip ring 21 is disposed at the outer edge of the sleeve 2, the outer edge of the anti-slip ring 21 is used for contacting with the abdominal wall, in order to avoid the slipping phenomenon of the sleeve 2, the puncture outfit with the anti-slip tube can ensure the effect of fixing on the abdominal wall, and in the prior art, a rectangular anti-slip ring 21 is generally adopted, that is, the cross section of the anti-slip ring 21 is rectangular, so that the effect of abutting fixation is realized through a sharp right angle, but the phenomenon of scratching may exist.
Further, referring to fig. 6 and 7, as a specific embodiment of the puncture outfit provided by the present invention, the anti-slip ring 21 has a first inclined surface 211 and a second inclined surface 212 which are obliquely disposed on the sleeve 2, the first inclined surface 211 and the second inclined surface 212 are connected, and a connection portion between the first inclined surface 211 and the second inclined surface 212 is in a circular arc shape. Specifically, the first inclined surface 211 and the second inclined surface 212 are inclined surfaces inclined compared with the sleeve 2, at this time, the cross section shape of the anti-slip ring 21 can be triangular, the first inclined surface 211 and the second inclined surface 212 respectively correspond to two sides of the triangle, the sleeve corresponds to the bottom side of the triangle, the arc is located at the vertex angle of the triangle, at this time, the contact area between the anti-slip ring 21 and the abdominal wall can be increased, and therefore the friction force between the anti-slip ring 21 and the abdominal wall is increased, and the phenomenon of slipping of the sleeve 2 is effectively avoided.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1. Air-blocking sealing piece, its characterized in that: the valve comprises a fixed collar (41) and an elastic valve wall group arranged on one side of the fixed collar (41), wherein the elastic valve wall group comprises at least two valve clacks (42) and an elastic limiting ring (44) sleeved on the valve clacks (42), the elastic limiting ring (44) is sleeved on one end, far away from the fixed collar (41), of the valve clacks (42), and the valve clacks (42) are spliced with each other and form an air inlet (43) for a puncture cone (7) to pass through at one end, far away from the fixed collar (41);
The valve clack (42) comprises a connecting surface (421) and a lower concave surface (422) arranged in the middle of the connecting surface (421), the connecting surfaces (421) of the adjacent valve clacks (42) can be connected, and the inner side of the lower concave surface (422) can be abutted against the puncture cone (7); the number of the valve clacks (42) can be increased or decreased to change the size of the gap between the valve clacks (42); the concave surface (422) is concave gradually from the penetration taper entering direction.
2. The air blocking sheet according to claim 1, wherein: and a limiting groove (423) for fixing the elastic limiting ring (44) is formed in the outer side of the connecting surface (421).
3. The air-blocking sheet according to any one of claims 1 to 2, wherein: the number of the valve clacks (42) is 4, and the valve clacks (42) are mutually spliced to form a cross-shaped air inlet (43).
4. Puncture outfit, its characterized in that: a gas barrier sheet (4) comprising any one of claims 1 to 3.
5. The puncture device according to claim 4, wherein: still include puncture awl (7), one end have open-ended valve body (1), with sleeve pipe (2) and the lid of valve body (1) fixed connection are located upper cover (3) on the opening, hinder airtight piece (4) to locate in valve body (1), puncture awl (7) pass in proper order upper cover (3) hinder airtight piece (4) valve body (1) with sleeve pipe (2).
6. The puncture device according to claim 5, wherein: the two sides of the valve body (1) are provided with fixed buckles (11), and the inner side of the upper cover (3) is provided with a first groove (31) buckled with the fixed buckles (11).
7. The puncture device according to claim 5, wherein: the inside wall of valve body (1) is equipped with first ladder groove (13), the inboard of upper cover (3) be equipped with first ladder groove (13) matched with second recess (33), first ladder groove (13) with second recess (33) cooperate and with fixed lantern ring (41) looks block.
8. The puncture device according to claim 5, wherein: the outside of sleeve pipe (2) is equipped with a plurality of anti-skidding circle (21), anti-skidding circle (21) with sleeve pipe (2) integrated into one piece.
9. The puncture device according to claim 8, wherein: the anti-slip ring (21) is provided with a first inclined surface (211) and a second inclined surface (212) which are obliquely arranged on the sleeve (2), the first inclined surface (211) is connected with the second inclined surface (212), and the joint of the first inclined surface (211) and the second inclined surface (212) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910476631.3A CN110141325B (en) | 2019-06-03 | 2019-06-03 | Air-blocking sealing piece and puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910476631.3A CN110141325B (en) | 2019-06-03 | 2019-06-03 | Air-blocking sealing piece and puncture outfit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110141325A CN110141325A (en) | 2019-08-20 |
| CN110141325B true CN110141325B (en) | 2024-04-26 |
Family
ID=67590087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910476631.3A Active CN110141325B (en) | 2019-06-03 | 2019-06-03 | Air-blocking sealing piece and puncture outfit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115231660B (en) * | 2022-07-19 | 2023-07-11 | 永康市希瑞工贸有限公司 | Hydrogen production cup |
| CN118178835A (en) * | 2022-12-12 | 2024-06-14 | 先健科技(深圳)有限公司 | Conveying sheath |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1350477A1 (en) * | 2002-04-02 | 2003-10-08 | Pajunk OHG Besitzverwaltung | Trocar sleeve |
| CN2587362Y (en) * | 2002-09-23 | 2003-11-26 | 佛山特种医用导管有限责任公司 | Trocar puncture needle |
| CN105596061A (en) * | 2016-02-23 | 2016-05-25 | 常州威克医疗器械有限公司 | Disposable puncture outfit sealing device |
| CN108523944A (en) * | 2018-04-28 | 2018-09-14 | 中国人民解放军第七五医院 | A kind of digestive endoscope is closed folder and its application method |
| EP3459477A1 (en) * | 2017-09-26 | 2019-03-27 | Ethicon LLC | Trocar seal assemblies |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8177754B2 (en) * | 2009-03-19 | 2012-05-15 | Tyco Healthcare Group Lp | Surgical port seal |
| DE102011088337A1 (en) * | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing a passage for a medical instrument |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1350477A1 (en) * | 2002-04-02 | 2003-10-08 | Pajunk OHG Besitzverwaltung | Trocar sleeve |
| CN2587362Y (en) * | 2002-09-23 | 2003-11-26 | 佛山特种医用导管有限责任公司 | Trocar puncture needle |
| CN105596061A (en) * | 2016-02-23 | 2016-05-25 | 常州威克医疗器械有限公司 | Disposable puncture outfit sealing device |
| EP3459477A1 (en) * | 2017-09-26 | 2019-03-27 | Ethicon LLC | Trocar seal assemblies |
| CN108523944A (en) * | 2018-04-28 | 2018-09-14 | 中国人民解放军第七五医院 | A kind of digestive endoscope is closed folder and its application method |
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| CN110141325A (en) | 2019-08-20 |
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