CN208910329U - Seal assembly, trocar sleeve and puncture outfit for trocar sleeve - Google Patents
Seal assembly, trocar sleeve and puncture outfit for trocar sleeve Download PDFInfo
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- CN208910329U CN208910329U CN201820464822.9U CN201820464822U CN208910329U CN 208910329 U CN208910329 U CN 208910329U CN 201820464822 U CN201820464822 U CN 201820464822U CN 208910329 U CN208910329 U CN 208910329U
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- trocar sleeve
- elastic sealing
- seal assembly
- edge area
- triangle side
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Abstract
The utility model 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.Seal assembly for 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, in which: the edge department of multiple elastic sealing strips, which is folded between a pair of of pressure ring and successively overlaps, 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 utility model relates to the field of medical instrument technology, more particularly to a kind of seal assembly for trocar sleeve,
Trocar sleeve and puncture outfit.
Background technique
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, and the sleeve left can serve as the operation 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 successively handed over
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 accurately to control the overlapping of elastic sealing strip in assembling
Size, otherwise sealing effect is difficult to ensure, therefore, the assembly operation difficulty of existing seal assembly is larger.
Utility model content
The purpose of the utility model embodiment is to provide a kind of seal assembly, trocar sleeve and puncture for trocar sleeve
Device improves the sealing effect of seal assembly to reduce the assembly operation difficulty of seal assembly.
The seal assembly of trocar sleeve, including a pair of of pressure ring and multiple elasticity are used for provided by the utility model embodiment
Diaphragm seal, the elastic sealing strip include edge department and in the recessed portion for not being closed taper, in which:
The edge department of multiple elastic sealing strips is folded between the pair of pressure ring and successively overlaps to be formed 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 be in U-shape the first edge area, the second edge area and the third edge area of connection；Institute
Stating recessed portion includes first to connect one to one with first edge area, second edge area and third edge area
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 successively exists
The overlapping triangular pyramid recess for forming closure of the stupefied place's contraposition in side.
Optionally, the elastic sealing strip quantity is four, and the recessed portion of four elastic sealing strips successively exists
The overlapping pyramid shape recess for forming closure of the stupefied place's contraposition in side.
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 third edge area has notch beyond the part of the third triangle side.
Preferably, multiple pins and multiple pin holes are provided on the pressure ring, multiple pins on any pressure ring
Multiple pin hole insertings on column and another pressure ring cooperate, and the edge department of the elastic sealing strip has described in confession
What pin passed through passes through hole.
The utility model embodiment also provides a kind of trocar sleeve, including sealing group described in aforementioned any technical solution
Part.
The utility model embodiment also provides a kind of puncture outfit, including trocar sleeve described in preceding solution.
The utility model above-described embodiment is used for the seal assembly of puncture outfit sleeve in assembling, multiple elastic sealing strips
Recessed portion is successively overlapping in the stupefied place's contraposition in side, to form the conical indentation of a closure, i.e., the recess of adjacent spring diaphragm seal
There is the stupefied contraposition overlapping in an opposite side in portion.Compared with prior art, which greatly reduces the assembly operation difficulty of seal assembly, assembling
Accuracy it is higher, therefore, the sealing effect of seal assembly is preferable.
Detailed description of the invention
Fig. 1 is an embodiment of the present invention seal assembly schematic diagram；
Fig. 2 is an embodiment of the present invention seal applications in trocar sleeve schematic diagram；
Fig. 3 is an embodiment of the present invention seal assembly explosive view；
Fig. 4 A, 4B be an embodiment of the present invention seal assembly elastic sealing strip under different perspectives schematic diagram；
Fig. 5 A-5C is four elastic sealing strips successively stacked schematic diagram in an embodiment of the present invention；
Fig. 6 is the pressure ring schematic diagram of an embodiment of the present invention seal assembly.
Appended drawing reference:
100- trocar sleeve
2- seal assembly
21a, 21b- pressure ring
22,22a-22d- elastic sealing strip
220- edge department
221- recessed portion
The side 222- is stupefied
The first edge 2201- area
The second edge 2202- area
2203- third edge area
The first triangle side of 2211-
The second triangle side of 2212-
2213- third triangle side
223- notch
211- pin
212- pin hole
224- passes through hole
11- tubular portion
10- housing section
213- briquetting unit
Specific embodiment
For the assembly operation difficulty for reducing seal assembly, the sealing effect of seal assembly, the utility model embodiment are improved
Provide a kind of seal assembly, trocar sleeve and puncture outfit for trocar sleeve.In the implementation in detail below of the utility model
In mode, the term " distal end " used refers to part or component from user (doctor) farther away instrument, and term is " close
End " refers to part or component from user (doctor) closer instrument.For make the purpose of this utility model, technical solution and
Advantage is clearer, is described in further detail by the following examples to the utility model.It should be understood that described herein
Specific embodiment be only used for describing and explaining the present invention, be not intended to limit the utility model.
As shown in figures 1 and 3, the seal assembly 2 provided by the embodiment of the utility model for trocar sleeve, including a pair
Pressure ring 21a, 21b and multiple elastic sealing strips 22 (the elastic sealing strip 22a-22d in such as Fig. 3), elastic packing under different perspectives
The structure of piece 22 is as shown in Figure 4 A and 4 B shown in FIG..Specifically, elastic sealing strip 22 includes edge department 220 and in not being closed the recessed of taper
Concave portion 221, the recessed portion 221 to distal end be recessed, the edge department 220 of multiple elastic sealing strips 22 be folded in a pair of of pressure ring 21a,
It between 21b, and successively overlaps and forms closed annular, the recessed portion 221 of multiple elastic sealing strips 22 successively aligns at side stupefied 222
The overlapping conical indentation for forming closure.In the present embodiment, pressure ring 21a, 21b is rigid pressure ring.
As shown in Fig. 2, trocar sleeve 100 includes tubular portion 11 and the housing section 10 positioned at 11 proximal end of tubular portion, sealing group
Part 2 is set in housing section 10 and seals with housing section 10 and assembles.
In seal assembly 2 described in the utility model embodiment, the quantity of elastic sealing strip 22 can be according to actual design
It needs to be arranged.For example, the quantity of elastic sealing strip 22 can be four, four elastic packings incorporated by reference to shown in Fig. 3 and Fig. 4 A
The recessed portion 221 of piece 22a-22d successively aligns the overlapping pyramid shape recess for forming closure at side stupefied 222.Alternatively, as can
Embodiment is selected, the quantity of elastic sealing strip may be three pieces, and the recessed portion of three pieces elastic sealing strip successively aligns at the stupefied place in side
The overlapping triangular pyramid recess for forming closure.Three pieces or four elastic sealing strips can realize preferable sealing effect, and be convenient for
Surgical instrument passes through, and operates more laborsaving.
Further combined with shown in reference Fig. 3, Fig. 4 A, Fig. 5 A- Fig. 5 C, to include the close of four elastic sealing strip 22a-22d
For sealing assembly 2, when being assembled to it, firstly, 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 successively overlaps, and pieces together a closed annular.Later, by pressure ring
21a and pressure ring 21b is fixed in the sandwich of the formed closed annular of multiple edge departments 220, completes assembling.It should be understood that
One of side of the corresponding closure conical indentation in side stupefied 222 is stupefied.
Specifically, Fig. 5 A- Fig. 5 C is 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 the assembled position of elastic sealing strip 22b relative resilient diaphragm seal 22a, elastic sealing strip 22c relative resilient diaphragm seal
The assembled position of 22b and the assembled position of elastic sealing strip 22d relative resilient diaphragm seal 22c, rotating around the top of conical indentation
Point S has rotated 90 degree counterclockwise.
Since the recessed portion 221 of elastic sealing strip 22 is passing through seal assembly 2 in taper, surgical instrument is not closed
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 utility model above-described embodiment is used for the seal assembly 2 of puncture outfit sleeve 100 in assembling, multiple elastic packings
The recessed portion 221 of piece 22 is successively aligned at side stupefied 222 and is overlapped, thus form the conical indentation of a closure, i.e., it is adjacent spring
The recessed portion 221 of diaphragm seal 22 has the stupefied contraposition overlapping in an opposite side.Compared with prior art, which greatly reduces seal assembly 2
Assembly operation difficulty, 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 utility model in one embodiment, the side of elastic sealing strip 22
The first edge area 2201, the second edge area 2202 and third edge area 2203 along portion 220 including the connection that is in U-shape；Recessed portion 221
Including 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
Face 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 third edge area 2203 has notch 223 beyond the part of third triangle side 2213.It is set using this
Meter, the closed annular the thickness uniformity that the edge department 220 of multiple elastic sealing strips 22 pieces together is preferable, to realize more preferably close
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 of the utility model, the side of multiple elastic sealing strip 22a-22d
The periphery for the closed annular being combined into along portion 220 is in octagon, wherein five sides of the corresponding octagon of each edge department 220.
In this way, making width everywhere in closed annular, thickness more uniform, not only filled convenient for being sealed in the housing section of trocar sleeve
Match, and force stability is preferable, so that elastic sealing strip 22 is installed firm between aforementioned pressure ring 21a, 21b, is not likely to produce
Tearing or abjection.In addition it is also possible to carry out the shape of the edge department 220 of design flexibility diaphragm seal 22 as needed, make closed annular
Periphery present 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, as shown in Figure 3 and Figure 6, being all provided on pressure ring 21a and pressure ring 21b in the preferred embodiment of the utility model
It is equipped with multiple pins 211 and multiple pin holes 212, multiple pins 211 on pressure ring 21a and multiple pin holes on pressure ring 21b insert
Cooperation, vice versa.As shown in Figure 4 A and 4 B shown in FIG., the edge department 220 of each elastic sealing strip 22 has and passes through for pin 211
Across hole 224.The shape, structure of two pressure rings 21a, 21b can be identical, and be staggered certain angle in assembling, make pin
211 and the corresponding inserting of pin hole 212.In addition, as shown in fig. 6, pressure ring 21a, 21b include eight section briquetting units 213, adjacent pressure
The junction of module unit 213 is narrowed, and design in this way can improve closed annular being forced between a pair of of pressure ring 21a, 21b
By force, so that a pair of pressure ring 21a, 21b is more firm to the clamping of elastic sealing strip 22.
As shown in Fig. 2, the utility model embodiment also provides a kind of trocar sleeve 100, including aforementioned any technical solution
Seal assembly 2.Since the sealing effect of seal assembly 2 is preferable, the sealing effect of trocar sleeve 100 is also preferable.
The utility model embodiment also provides a kind of puncture outfit, the trocar sleeve including preceding solution.Due to puncturing
The sealing effect of the seal assembly of sleeve is preferable, therefore carries out surgical operation using the puncture outfit, can be effectively prevented in cavity
Gas leakage, surgical effect are preferable.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model 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, in which:
The edge department of multiple elastic sealing strips, which is folded between the pair of pressure ring and successively overlaps, 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. being used for the seal assembly of trocar sleeve as described in claim 1, which is characterized in that the edge department includes being in U-shape
The first edge area, the second edge area and the third edge area of connection；
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. being used for the seal assembly of trocar sleeve as claimed in claim 2, which is characterized in that the elastic sealing strip quantity is
Three pieces, the recessed portion of elastic sealing strip described in three pieces are successively recessed in the stupefied overlapping triangular pyramid for forming closure of place's contraposition in side
It falls into.
4. being used for the seal assembly of trocar sleeve as claimed in claim 2, which is characterized in that the elastic sealing strip quantity is
Four, the recessed portion of four elastic sealing strips is successively recessed in the stupefied overlapping pyramid shape for forming closure of place's contraposition in side
It falls into.
5. as claimed in claim 2 be used for trocar sleeve seal assembly, which is characterized in that first triangle side and
The area of the third triangle 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. being used for the seal assembly of trocar sleeve as claimed in claim 2, which is characterized in that the periphery of the closed annular is in
Octagon.
7. being used for the seal assembly of trocar sleeve as claimed in claim 2, which is characterized in that first edge area exceeds institute
State the first triangle side；
Third edge area exceeds the third triangle side, and third edge area exceeds the third triangle side
The part in face has notch.
8. the seal assembly as described in any one of claims 1 to 7 for trocar sleeve, which is characterized in that on the pressure ring
Multiple pins and multiple pin holes are provided with, multiple pins on any pressure ring and multiple institutes on another pressure ring
Pin hole inserting cooperation is stated, the edge department of the elastic sealing strip, which has, passes through hole for what the pin passed through.
9. a kind of trocar sleeve, which is characterized in that including as described in any one of claims 1 to 8 for the close of trocar sleeve
Sealing 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 |
|---|---|---|---|
| CN201820464822.9U CN208910329U (en) | 2018-03-30 | 2018-03-30 | Seal assembly, trocar sleeve and puncture outfit for trocar sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820464822.9U CN208910329U (en) | 2018-03-30 | 2018-03-30 | Seal assembly, trocar sleeve and puncture outfit for trocar sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208910329U true CN208910329U (en) | 2019-05-31 |
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ID=66691738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820464822.9U Active CN208910329U (en) | 2018-03-30 | 2018-03-30 | Seal assembly, trocar sleeve and puncture outfit for trocar sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208910329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354638A (en) * | 2018-03-30 | 2018-08-03 | 天津瑞奇外科器械股份有限公司 | Seal assembly, trocar sleeve and puncture outfit for trocar sleeve |
-
2018
- 2018-03-30 CN CN201820464822.9U patent/CN208910329U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354638A (en) * | 2018-03-30 | 2018-08-03 | 天津瑞奇外科器械股份有限公司 | Seal assembly, trocar sleeve and puncture outfit for trocar sleeve |
| CN108354638B (en) * | 2018-03-30 | 2024-06-18 | 天津瑞奇外科器械股份有限公司 | Sealing assembly for puncture sleeve, puncture sleeve and puncture device |
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