CN108354638A - Seal assembly, trocar sleeve and puncture outfit for trocar sleeve - Google Patents
Seal assembly, trocar sleeve and puncture outfit for trocar sleeve Download PDFInfo
- Publication number
- CN108354638A CN108354638A CN201810292376.2A CN201810292376A CN108354638A CN 108354638 A CN108354638 A CN 108354638A CN 201810292376 A CN201810292376 A CN 201810292376A CN 108354638 A CN108354638 A CN 108354638A
- Authority
- CN
- China
- Prior art keywords
- elastic sealing
- seal assembly
- sealing strip
- pressure ring
- trocar sleeve
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 238000007373 indentation Methods 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 abstract description 16
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000007912 intraperitoneal administration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000002784 stomach Anatomy 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
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (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 discloses a kind of seal assemblies, trocar sleeve and puncture outfit for trocar sleeve to improve the sealing effect of seal assembly to reduce the assembly operation difficulty of seal assembly.For the seal assembly of trocar sleeve, including a pair of of pressure ring and multiple elastic sealing strips, elastic sealing strip includes edge department and in the recessed portion for not being closed taper, wherein：The edge department of multiple elastic sealing strips, which is folded between a pair of of pressure ring and overlaps successively, forms closed annular；The recessed portion of multiple elastic sealing strips is successively in the stupefied overlapping conical indentation for forming closure of place's contraposition in side.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of seal assembly for trocar sleeve, puncture
Sleeve and puncture outfit.
Background technology
Puncture outfit is a kind of for piercing through skin to provide the hand into body cavity's internal channel for other surgical instruments
Art instrument belongs to a kind of Minimally Invasive Surgery instrument.
Puncture outfit generally includes sleeve and through the puncturing lever in sleeve.In use, first using puncturing lever together with sleeve
Skin is penetrated together and enters cavity, extracts puncturing lever out later, the sleeve left can serve as the operations such as endoscope, laparoscope
Instrument enters the channel of body cavity.It in some applications, can also be by sleeve to intraperitoneal aeration so that stomach wall is increased to
The top of certain organs.
During operation, to prevent gas in cavity from leaking, the proximal end of sleeve is typically provided with seal assembly, the sealing group
Part includes a pair of of pressure ring and multiple elastic sealing strips for being folded between a pair of pressure ring, and multiple elastic sealing strip is handed over successively
Closing conical surface folded, that split is recessed in one towards hub distal end.It is preceding after surgical instrument penetrates the vertex of a cone of conical surface
Multiple elastic sealing strip tights are stated in the side of surgical instrument, realize the effect of sealing.
Defect of the existing technology is that seal assembly needs to accurately control the overlapping of elastic sealing strip in assembling
Size, otherwise sealing effect be difficult to ensure, therefore, the assembly operation difficulty of existing seal assembly is larger.
Invention content
The purpose of the embodiment of the present invention is to provide a kind of seal assembly, trocar sleeve and puncture outfit for trocar sleeve,
To reduce the assembly operation difficulty of seal assembly, the sealing effect of seal assembly is improved.
The seal assembly for trocar sleeve that the embodiment of the present invention is provided, including a pair of of pressure ring and multiple elastic packings
Piece, the elastic sealing strip include edge department and in the recessed portion for not being closed taper, wherein：
The edge department of multiple elastic sealing strips is folded between the pair of pressure ring and overlaps to be formed successively and closes
Cyclization shape；
The recessed portion of multiple elastic sealing strips is successively in the stupefied overlapping conical indentation for forming closure of place's contraposition in side.
Optionally, the edge department includes take the shape of the letter U the first edge area, the second edge area and the third edge area of connection；Institute
It includes first to connect one to one with first edge area, second edge area and third edge area to state recessed portion
Triangle side, the second triangle side and third triangle side.
Optionally, the elastic sealing strip quantity is three pieces, and the recessed portion of elastic sealing strip described in three pieces exists successively
The stupefied place's contraposition in side is overlapping to form the triangular pyramid recess being closed.
Optionally, the elastic sealing strip quantity is four, and the recessed portion of four elastic sealing strips exists successively
The stupefied place's contraposition in side is overlapping to form the pyramid shape recess being closed.
Preferably, the area of first triangle side and the third triangle side is less than second triangle
The area of side；First triangle side and second triangle side extend to the vertex of the conical indentation, institute
State the vertex that third triangle side does not extend to the conical indentation.
Optionally, the periphery of the closed annular is in octagon.
Preferably, first edge area exceeds first triangle side；Third edge area is beyond described the
Three triangle sides, and part of the third edge area beyond the third triangle side has notch.
Preferably, multiple pins and multiple pin holes are provided on the pressure ring, multiple pins on any pressure ring
Column coordinates with multiple pin hole insertings on another pressure ring, and the edge department of the elastic sealing strip has described in confession
Pin by pass through hole.
The embodiment of the present invention also provides a kind of trocar sleeve, including the seal assembly described in aforementioned any technical solution.
The embodiment of the present invention also provides a kind of puncture outfit, including the trocar sleeve described in preceding solution.
The above embodiment of the present invention is used for the seal assembly of puncture outfit sleeve in assembling, the recess of multiple elastic sealing strips
Portion is overlapping in the stupefied place's contraposition in side successively, and to form the conical indentation of a closure, i.e., the recessed portion of adjacent spring diaphragm seal has
The stupefied contraposition overlapping of one offside.Compared with prior art, which greatly reduces the assembly operation difficulty of seal assembly, the essence of assembling
Exactness is higher, and therefore, the sealing effect of seal assembly is preferable.
Description of the drawings
Fig. 1 is one embodiment of the invention seal assembly schematic diagram；
Fig. 2 is one embodiment of the invention seal applications in trocar sleeve schematic diagram；
Fig. 3 is one embodiment of the invention seal assembly explosive view；
Fig. 4 A, 4B be one embodiment of the invention seal assembly elastic sealing strip under different visual angles schematic diagram；
Fig. 5 A-5C are four elastic sealing strips in one embodiment of the invention successively stacked schematic diagram；
Fig. 6 is the pressure ring schematic diagram of one embodiment of the invention seal assembly.
Reference numeral：
100- trocar sleeves
2- seal assemblies
21a, 21b- pressure ring
22,22a-22d- elastic sealing strips
220- edge departments
221- recessed portions
The sides 222- are stupefied
The first edges 2201- area
The second edges 2202- area
2203- thirds edge area
The first triangle sides of 2211-
The second triangle sides of 2212-
2213- third triangle sides
223- notches
211- pins
212- pin holes
224- passes through hole
11- tubes
10- housing sections
213- briquetting units
Specific implementation mode
To reduce the assembly operation difficulty of seal assembly, the sealing effect of seal assembly is improved, the embodiment of the present invention provides
A kind of seal assembly, trocar sleeve and puncture outfit for trocar sleeve.In the detailed description below of the present invention, make
Term " distal end " refers to part or the component of the instrument from user (doctor) farther out, and term " proximal end " refer to from
The part of user (doctor) closer instrument or component.To make the object, technical solutions and advantages of the present invention clearer, with
It is lower that for embodiment, invention is further described in detail.It should be understood that the specific embodiments described herein are only used
In the description and interpretation present invention, it is not intended to restrict the invention.
As shown in figures 1 and 3, the seal assembly 2 provided in an embodiment of the present invention for trocar sleeve, including a pair of of pressure ring
21a, 21b and multiple elastic sealing strips 22 (the elastic sealing strip 22a-22d in such as Fig. 3), elastic sealing strip 22 under different visual angles
Structure it is as shown in Figure 4 A and 4 B shown in FIG..Specifically, elastic sealing strip 22 is including edge department 220 and in the recessed portion for not being closed taper
221, which is recessed to distal end, the edge departments 220 of multiple elastic sealing strips 22 be folded in a pair of of pressure ring 21a, 21b it
Between, and overlap form closed annular successively, the recessed portion 221 of multiple elastic sealing strips 22 aligns at side stupefied 222 successively to be overlapped
Form the conical indentation being closed.In the present embodiment, pressure ring 21a, 21b is rigid pressure ring.
As shown in Fig. 2, trocar sleeve 100 includes tube 11 and the housing section 10 positioned at 11 proximal end of tube, sealing group
Part 2 is set in housing section 10 and is sealed with housing section 10 and assembled.
In seal assembly 2 described in the embodiment of the present invention, the quantity of elastic sealing strip 22 can be according to actual design needs
To be arranged.For example, incorporated by reference to shown in Fig. 3 and Fig. 4 A, the quantity of elastic sealing strip 22 can be four, four elastic sealing strips
The recessed portion 221 of 22a-22d aligns the overlapping pyramid shape recess for being formed and being closed at side stupefied 222 successively.Alternatively, as optional
The quantity of embodiment, elastic sealing strip may be three pieces, and the recessed portion of three pieces elastic sealing strip successively in side, hand over by stupefied place's contraposition
It is folded to form the triangular pyramid recess being closed.Three pieces or four elastic sealing strips can realize preferable sealing effect, and be convenient for hand
Art instrument passes through, and operates more laborsaving.
Further combined with reference to shown in figure 3, Fig. 4 A, Fig. 5 A- Fig. 5 C, with close including four elastic sealing strip 22a-22d
For sealing assembly 2, when being assembled to it, first, by the recessed portion 221 of four elastic sealing strip 22a-22d successively in side
It aligns and overlaps at stupefied 222, piece together the conical indentation of a closure, since edge department 220 and recessed portion 221 are structure as a whole,
The edge department 220 of four elastic sealing strip 22a-22d also just overlaps successively, pieces together a closed annular.Later, by pressure ring
21a and pressure ring 21b is fixed in the sandwich of 220 formed closed annular of multiple edge departments, completes assembling.It should be understood that
It is stupefied that side stupefied 222 corresponds to one of closure conical indentation side.
Specifically, Fig. 5 A- Fig. 5 C are respectively illustrated in above-mentioned assembling process, successively on first elastic sealing strip 22a
The assembling shape of second elastic sealing strip 22b of overlapping assembling, third piece elastic sealing strip 22c and the 4th elastic sealing strip 22d
State, wherein assembling position, the elastic sealing strip 22c relative resilient diaphragm seals of elastic sealing strip 22b relative resilient diaphragm seals 22a
The assembling position of 22b and the assembling position of elastic sealing strip 22d relative resilient diaphragm seals 22c, rotating around the top of conical indentation
Point S has rotated 90 degree counterclockwise.
Recessed portion 221 due to elastic sealing strip 22 is not in taper is closed, and surgical instrument is across seal assembly 2
When, part of each elastic sealing strip 22 at the S of conical indentation vertex can be washed open separation, and elastic packaging by surgical instrument
In the side of surgical instrument, sealing effect is realized.
The above embodiment of the present invention is used for the seal assembly 2 of puncture outfit sleeve 100 in assembling, multiple elastic sealing strips 22
Recessed portion 221 aligned at side stupefied 222 successively it is overlapping, to form the conical indentation of a closure, i.e., adjacent spring sealing
The recessed portion 221 of piece 22 has the stupefied contraposition overlapping of an offside.Compared with prior art, which greatly reduces the group of seal assembly 2
Operation difficulty is filled, the accuracy of assembling is higher, and therefore, the sealing effect of seal assembly 2 is preferable.
Further as shown in Figure 4 A and 4 B shown in FIG., the present invention in one embodiment, the edge department of elastic sealing strip 22
220 include the first edge area 2201, the second edge area 2202 and the third edge area 2203 of the connection that takes the shape of the letter U；Recessed portion 221 includes
The first triangle side to connect one to one with the first edge area 2201, the second edge area 2202 and third edge area 2203
2211, the second triangle side 2212 and third triangle side 2213.
Preferably, the area of the first triangle side 2211 and third triangle side 2213 is less than the second triangle side
2212 area；First triangle side 2211 and the second triangle side 2212 extend to the vertex S of conical indentation, and the three or three
Angular side 2213 does not extend to the vertex S of conical indentation.In this way design can reduce surgical instrument wash open and by when by
Resistance, further, it is also possible to play prevent dislocation assemble fool proof effect.
Further, the first edge area 2201 exceeds the first triangle side 2211；Third edge area 2203 exceeds the three or three
Angular side 2213, and part of the third edge area 2203 beyond third triangle side 2213 has notch 223.It is set using this
Meter, the closed annular thickness evenness that the edge department 220 of multiple elastic sealing strips 22 pieces together is preferable, more preferably close to realize
Seal effect；Notch 223 is designed in third edge area 2203, keeps third edge area 2203 and the shape in the first edge area 2201 endless
Holohedral symmetry can play the fool proof effect for preventing dislocation from assembling, further improve packaging efficiency.
As shown in Fig. 4 A and Fig. 5 C, in the preferred embodiment, the edge department of multiple elastic sealing strip 22a-22d
The periphery of 220 closed annulars being combined into is in octagon, and each edge department 220 corresponds to wherein five sides of octagon.In this way,
So that width, thickness are more uniform everywhere in closed annular, the housing section interior sealing in trocar sleeve is not only convenient for assemble, and
Force stability is preferable so that it is firm that elastic sealing strip 22 is installed between aforementioned pressure ring 21a, 21b, is not likely to produce tearing or de-
Go out.In addition it is also possible to carry out the shape of the edge department 220 of design flexibility diaphragm seal 22 as needed, the periphery of closed annular is set to be in
Now such as regular hexagon, the equiprobable shape of regualr decagon.
The specific connection type of both of the aforesaid pressure ring 21a, 21b are unlimited, such as can be solid by fasteners such as screw, bolts
Fixed connection.For example, in the preferred embodiment, as shown in Figure 3 and Figure 6, being both provided on pressure ring 21a and pressure ring 21b
Multiple pins 211 and multiple pin holes 212, multiple pin holes inserting on the multiple pins 211 and pressure ring 21b on pressure ring 21a coordinate,
Vice versa.As shown in Figure 4 A and 4 B shown in FIG., the edge department 220 of each elastic sealing strip 22 have for pin 211 by pass through
Hole 224.The shape, structure of two pressure rings 21a, 21b can be identical, and be staggered certain angle in assembling, makes 211 He of pin
Pin hole 212 corresponds to inserting.In addition, as shown in fig. 6, pressure ring 21a, 21b include eight section briquetting units 213, adjacent briquetting list
The junction of member 213 is narrowed, and design in this way can improve stress pressure of the closed annular between a pair of of pressure ring 21a, 21b, make
It is more firm to the clamping of elastic sealing strip 22 to obtain a pair of of pressure ring 21a, 21b.
As shown in Fig. 2, the embodiment of the present invention also provides a kind of trocar sleeve 100, including aforementioned any technical solution is close
Sealing assembly 2.Since the sealing effect of seal assembly 2 is preferable, the sealing effect of trocar sleeve 100 is also preferable.
The embodiment of the present invention also provides a kind of puncture outfit, includes the trocar sleeve of preceding solution.Due to trocar sleeve
Seal assembly sealing effect it is preferable, therefore using the puncture outfit carry out surgical operation, gas in cavity can be effectively prevent
Leakage, surgical effect are preferable.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of seal assembly for trocar sleeve, which is characterized in that described including a pair of of pressure ring and multiple elastic sealing strips
Elastic sealing strip includes edge department and in the recessed portion for not being closed taper, wherein：
The edge department of multiple elastic sealing strips, which is folded between the pair of pressure ring and overlaps successively, forms close ring
Shape；
The recessed portion of multiple elastic sealing strips is successively in the stupefied overlapping conical indentation for forming closure of place's contraposition in side.
2. seal assembly as described in claim 1, which is characterized in that the edge department includes the first edge of connection of taking the shape of the letter U
Area, the second edge area and third edge area；
The recessed portion includes connecting one to one with first edge area, second edge area and third edge area
The first triangle side, the second triangle side and third triangle side.
3. seal assembly as claimed in claim 2, which is characterized in that the elastic sealing strip quantity is three pieces, described in three pieces
The recessed portion of elastic sealing strip is recessed in the overlapping triangular pyramid being closed that formed of the stupefied place's contraposition in side successively.
4. seal assembly as claimed in claim 2, which is characterized in that the elastic sealing strip quantity is four, described in four
The recessed portion of elastic sealing strip is recessed in the overlapping pyramid shape being closed that formed of the stupefied place's contraposition in side successively.
5. seal assembly as claimed in claim 2, which is characterized in that first triangle side and the third triangle
The area of side is less than the area of second triangle side；
First triangle side and second triangle side extend to the vertex of the conical indentation, and the described 3rd 3
Angular side does not extend to the vertex of the conical indentation.
6. seal assembly as claimed in claim 2, which is characterized in that the periphery of the closed annular is in octagon.
7. seal assembly as claimed in claim 2, which is characterized in that first edge area exceeds first triangle side
Face；
Third edge area exceeds the third triangle side, and third edge area exceeds the third triangle side
The part in face has notch.
8. such as claim 1~7 any one of them seal assembly, which is characterized in that be provided with multiple pins on the pressure ring
With multiple pin holes, multiple pins on any pressure ring are matched with multiple pin holes insertings on another pressure ring
Close, the edge department of the elastic sealing strip have for the pin by pass through hole.
9. a kind of trocar sleeve, which is characterized in that including such as claim 1~8 any one of them seal assembly.
10. a kind of puncture outfit, which is characterized in that including trocar sleeve as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292376.2A CN108354638B (en) | 2018-03-30 | 2018-03-30 | Sealing assembly for puncture sleeve, puncture sleeve and puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292376.2A CN108354638B (en) | 2018-03-30 | 2018-03-30 | Sealing assembly for puncture sleeve, puncture sleeve and puncture device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108354638A true CN108354638A (en) | 2018-08-03 |
| CN108354638B CN108354638B (en) | 2024-06-18 |
Family
ID=63002120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810292376.2A Active CN108354638B (en) | 2018-03-30 | 2018-03-30 | Sealing assembly for puncture sleeve, puncture sleeve and puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108354638B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000621A (en) * | 2019-12-09 | 2020-04-14 | 天津瑞奇外科器械股份有限公司 | Sealing structure, puncture cannula and medical puncture outfit |
| CN111920494A (en) * | 2020-09-01 | 2020-11-13 | 深圳市世格赛思医疗科技有限公司 | Rod piece sealing structure and puncture outfit |
| US20210113240A1 (en) * | 2019-10-18 | 2021-04-22 | Covidien Lp | Seal assemblies for surgical access assemblies |
| CN113116407A (en) * | 2019-12-31 | 2021-07-16 | 先健科技(深圳)有限公司 | Plugging device |
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|---|---|---|---|---|
| US20210113240A1 (en) * | 2019-10-18 | 2021-04-22 | Covidien Lp | Seal assemblies for surgical access assemblies |
| US11812991B2 (en) * | 2019-10-18 | 2023-11-14 | Covidien Lp | Seal assemblies for surgical access assemblies |
| JP7489880B2 (en) | 2019-10-18 | 2024-05-24 | コヴィディエン リミテッド パートナーシップ | Seal assembly for surgical access assembly - Patents.com |
| CN111000621A (en) * | 2019-12-09 | 2020-04-14 | 天津瑞奇外科器械股份有限公司 | Sealing structure, puncture cannula and medical puncture outfit |
| CN113116407A (en) * | 2019-12-31 | 2021-07-16 | 先健科技(深圳)有限公司 | Plugging device |
| CN111920494A (en) * | 2020-09-01 | 2020-11-13 | 深圳市世格赛思医疗科技有限公司 | Rod piece sealing structure and puncture outfit |
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| Publication number | Publication date |
|---|---|
| CN108354638B (en) | 2024-06-18 |
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