CN203280462U - Choke valve for puncture device - Google Patents
Choke valve for puncture device Download PDFInfo
- Publication number
- CN203280462U CN203280462U CN2013202952433U CN201320295243U CN203280462U CN 203280462 U CN203280462 U CN 203280462U CN 2013202952433 U CN2013202952433 U CN 2013202952433U CN 201320295243 U CN201320295243 U CN 201320295243U CN 203280462 U CN203280462 U CN 203280462U
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- CN
- China
- Prior art keywords
- perforator
- shuttle valve
- cup portion
- inner cup
- air shuttle
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a choke valve for a puncture device, which has high sealing property and has low resistance when being penetrated by surgical instruments. The choke valve is in sealing fit on a working channel in the puncture device and comprises a cup body part made of elastic materials, wherein the bottom surface of the cup body part is a plane; a crossed gap is formed in the center of the bottom surface; four arc-shaped grooves opposite to four included angles of the crossed gap are formed in the side wall of the cup body part; column-shaped surgical instruments are suitable for penetration of the crossed gap; the bottom surface of the cup body part is suitable for sealing the working channel when not being penetrated by the surgical instruments. The bottom surface of the cup body part is in sliding fit with the column-shaped surgical instrument through the crossed gap; relative to a crack structure of a duck-billed choke valve, material deformation is slight and corresponding resistance applied to the surgical instruments is reduced.
Description
Technical field
This utility model relates to a kind of Minimally Invasive Surgery apparatus, particularly relates to the perforator air shuttle valve that uses in laparoscopic surgery.
Background technology
Perforator is a kind ofly to pierce through stomach wall and the operating theater instruments that enters the body cavity passage is provided for other operating theater instruments, belongs to a kind of Minimally Invasive Surgery apparatus.
Perforator generally includes as the sleeve assembly of other operating theater instruments admission passages with through the puncturing lever in described sleeve assembly., for transdermal, first with scalpel, cut epiderm skin, then puncturing lever transdermal and enter body cavity.Exert pressure by the near-end to described puncturing lever, skin is passed at the tip that promotes described puncturing lever,, until perforator enters body cavity, extracts puncturing lever out, and sleeve assembly just can be used as the mis instruments passage of carrying out endo-surgical and splanchnoscopy operation.
Sleeve assembly is used for various apparatuses and instrument are introduced intraperitoneal, and provides aeration to make stomach wall be elevated to the organ top.At this class intra-operative, insert sniffer (for example, endoscope or peritoneoscope) by sleeve assembly, observe operation process to allow the surgeon being connected on the external monitor of sniffer.
Before operation,, for to the intraperitoneal aeration and make stomach wall be elevated to organ top, stop simultaneously the intraperitoneal Leakage Gas, in the perforator of prior art, be provided with the duck-beak type air shuttle valve in the housing at the top of its sleeve assembly.
The weak point of above-mentioned duck-beak type air shuttle valve is: on the one hand, its sealing property is lower, and on the other hand, when operating theater instruments is passed the duck-beak type air shuttle valve, resistance is larger; Be not easy to operation.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of simple in structure, sealing property better and the perforator air shuttle valve that resistance is less when operating theater instruments is passed.
In order to address the above problem, this utility model provides a kind of perforator air shuttle valve, and this air shuttle valve is sealed and matched on a service aisle in perforator, and it comprises: the inner cup portion that elastomeric material is made, the bottom surface of this inner cup portion is plane, and these bottom surface central authorities are provided with cross-formed slits; The sidewall of this inner cup portion is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves; The cylindricality operating theater instruments is suitable for passing described cross-formed slits, and the bottom surface of this inner cup portion is not suitable for sealing described service aisle when having the cylindricality operating theater instruments to pass, and prevents thus leaking of the plug valve by perforator, perfusion gas that cylindrical shell is delivered to body cavity.
During use, gas pressure in inner cup portion is on four arcuate grooves and push four angles of described cross-formed slits, make described cross-formed slits closed when not having operating theater instruments to pass, and then seal when operating theater instruments is passed described cross-formed slits, described service aisle is realized sealing by described black box.Underrun cross-formed slits and the cylindricality surgical device of this inner cup portion are slidably matched, and with respect to the slit type structure of duck-beak type air shuttle valve, material deformation is little, and the resistance that acts on accordingly on operating theater instruments reduces.
The degree of depth of each arcuate groove, increase from top to bottom gradually, so that it is better to push the action effect of pressure of four angles of described cross-formed slits, and then improves sealing effectiveness.
Described four arcuate groove centrosymmetry distribute, so that it is even to push the pressure of four angles of described cross-formed slits.
Further preferred scheme is: the top of described inner cup portion has integrated flange, this flange coordinates for the center through hole of the annular cover plate with described receiver and the sealed bottom of switch cap, so that described switch cap coordinates with the receiver upper-lower seal.
This utility model has positive effect with respect to prior art: the bottom surface central authorities of air shuttle valve of the present utility model are provided with cross-formed slits; The sidewall of this inner cup portion is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves; During use, gas pressure in inner cup portion is on four arcuate grooves and push four angles of described cross-formed slits, make described cross-formed slits closed when not having operating theater instruments to pass, and then seal when operating theater instruments is passed described cross-formed slits, described service aisle is realized sealing by described black box.
Description of drawings
In order to clearly demonstrate innovative principle of the present utility model and than the technical advantage of existing product, below by means of accompanying drawing possible embodiment of limiting examples explanation by the described principle of application.In the drawings:
Figure 1A is the structural representation of perforator of the present utility model;
Figure 1B is the top view of perforator of the present utility model;
Fig. 1 C is the A-A sectional structure chart of the perforator in Figure 1A;
Fig. 1 D is the B-B sectional structure chart of the perforator in Figure 1A;
Fig. 1 E is the axonometric chart of perforator of the present utility model;
Fig. 1 F is the sectional structure chart of the housing parts of perforator of the present utility model;
Fig. 1 G is the switch cap sectional structure chart in perforator of the present utility model;
Fig. 2 is the decomposition texture schematic diagram of perforator of the present utility model;
Fig. 3 A is the top view of receiver of the present utility model;
Fig. 3 B is the C-C sectional structure chart of receiver of the present utility model;
Fig. 3 C is the D-D sectional structure chart of receiver of the present utility model;
Fig. 4 A is the structural representation of air shuttle valve of the present utility model;
Fig. 4 B is the right view of the air shuttle valve in Fig. 4 A;
Fig. 4 C is the axonometric chart of the air shuttle valve in Fig. 4 A;
Fig. 4 D is the left view of the air shuttle valve in Fig. 4 A;
Fig. 5 A is the structural representation of elastic sealing element of the present utility model;
Fig. 5 B is the upward view of the elastic sealing element in Fig. 5 A;
Fig. 5 C is the axonometric chart of the elastic sealing element in Fig. 5 A.
The specific embodiment
See Fig. 1, the perforator of the present embodiment comprises: sleeve assembly 1, and the housing 2 at this sleeve assembly top comprises: switch cap 2-1 and receiver 2-2 that upper-lower seal coordinates; Described receiver 2-2 comprises: bowl bodies 2-20, vertically be connected to this bowl bodies 2-20 bottom center and with the cylindrical shell 2-21 of this bowl bodies 2-20 one, sealing, be fixed on the annular cover plate 2-22 at this bowl bodies 2-20 top, and be located at the plug valve 4 on this bowl bodies 2-20 sidewall.This plug valve 4 is used for allowing and stops perfusion of fluid to enter or discharge body cavity by cylindrical shell 2-21;
The central axis of switch cap 2-1 and receiver 2-2 is provided be used to the service aisle 10 that wears operating theater instruments or puncturing lever; One black box 3 is located on service aisle in switch cap 2-1, and black box 3 tops are provided with protector 6.
Described black box 3 comprises a pair of stiffening ring 3-1, and 3 to 6 (preferred 4) are located at this to the elastic sealing element 3-2 between ring 3-1; Each elastic sealing element 3-2 comprises: be conical conical surface thinner wall section 3-21 and the ring part 3-22 that is connected to this conical surface thinner wall section 3-21 bottom; Conical surface thinner wall section 3-21 is provided with sector notch 3-20, and the top of this sector notch 3-20 is the top 3-24 of described conical surface thinner wall section 3-21, and the ring part 3-22 of each elastic sealing element 3-2 builds up layer each other together, so that the conical surface thinner wall section 3-21 of each elastic sealing element 3-2 forms conical sealing member, and then the operating theater instruments of passing described black box 3 is coordinated with sealing assembly 3 air-tight movables; The bottom of the conical surface thinner wall section of each elastic sealing element 3-2 has the circumference of 300 ° to 340 ° (preferred 360 °).The technique effect of its corresponding generation is: when operation, after operating theater instruments is passed described black box 3, the radial edges parcel of the sector notch 3-20 of the sidewall of operating theater instruments and each elastic sealing element 3 is tightr, and then raising sealing property,, even if intraperitoneal air pressure reaches 8KPa, there do not is the situation of gas leakage yet.
Described ring part 3-22 is provided with the base breach 3-220 relative with described sector notch 3-20; Described ring part 3-22 also is uniformly distributed the hole 3-23 that is useful on the pin that is located on described a pair of stiffening ring 3-1, to fix each elastic sealing element 3-2.
The width of described base breach 3-220 is less than the bottom width of described sector notch 3-20, and base breach 3-220 is over against the central authorities of described sector notch 3-20, in bottom circumference with the conical surface thinner wall section fixing each elastic sealing element 3-2, fix as far as possible the position of radial edges of the sector notch 3-20 of each elastic sealing element 3-2, guarantee sector notch 3-20 on the adjacent elastic sealing element 3-2 of lamination enough angles that can stagger, avoid producing leakage path between adjacent sector notch 3-20, finally guaranteed the sealing between adjacent elastic sealing element 3-2.
Be evenly distributed with at least two mounting groove 2-26 that are used for arranging three-back-shaped snap close 2-23 on the lateral wall of described annular cover plate 2-22; The medial wall of three-back-shaped snap close 2-23 is provided with spring 2-24; Be distributed with the interface 2-25 with described mounting groove 2-26 up/down perforation on the end face of described annular cover plate 2-22; The bottom of described switch cap 2-1 is extended with a plurality of dead bolt 2-11 for inserting respectively described interface 2-25 downwards, the inboard of this dead bolt 2-11 has locked groove 2-12, after this dead bolt 2-11 passes through hole 2-27 on described interface 2-25, three-back-shaped snap close 2-23 successively, under the effect of described spring 2-24, described locked groove 2-12 secure fit is in the through hole 2-27 of described three-back-shaped snap close 2-23.
Service aisle in the bowl bodies 2-20 of described receiver 2-2 is provided with air shuttle valve 7; This air shuttle valve 7 comprises the inner cup portion 71 that elastomeric material is made, and the bottom surface 72 of this inner cup portion 71 is plane, and these bottom surface 72 central authorities are provided with cross-formed slits 73; The sidewall of this inner cup portion 71 is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves 74; Described operating theater instruments is suitable for passing described cross-formed slits 73, and the bottom surface 72 of this inner cup portion is suitable for sealing described service aisle 10 when not having operating theater instruments to pass, and prevents from thus being delivered to leaking of endoceliac perfusion gas by plug valve 4, cylindrical shell 2-21.
During use, gas pressure in inner cup portion 71 is on four arcuate grooves 74 and push four angles of described cross-formed slits 73, make described cross-formed slits 73 closures when not having operating theater instruments to pass, and then seal when operating theater instruments is passed described cross-formed slits 73, described service aisle is realized sealing by described black box 3.Elastic sealing element 3-2 and air shuttle valve 7 adopt rubber to make.
The top of described inner cup portion 71 has integrated flange 75, this flange 75 coordinates for the center through hole of the annular cover plate 2-22 with described receiver 2-2 and the sealed bottom of switch cap 2-1, so that described switch cap 2-1 coordinates with receiver 2-2 upper-lower seal.
This perforator also comprises through the puncturing lever in described sleeve assembly, and this puncturing lever comprises the rod body part of ABS material and is connected to the head of the PC material of this rod body part end., with respect to adopting metal rod body part, the utlity model has with low cost, simple process, the higher characteristics of safety.
The bottom of the conical surface thinner wall section of elastic sealing element 3-2 has the circumference of 300 ° to 340 °, correspondingly, the upper sector notch 3-20 of described elastic sealing element 3-2 is just less, the technique effect of its corresponding generation is: when operation, after operating theater instruments was passed described black box, the radial edges of the sector notch 3-20 of the sidewall of operating theater instruments and each elastic sealing element 3-2 parcel was tightr, and then improved sealing property,, even if intraperitoneal air pressure reaches 8KPa, there do not is the situation of gas leakage yet.In addition, if the bottom circumference of the conical surface thinner wall section of described elastic sealing element 3-2 is greater than 340 °, can cause operating theater instruments to insert difficulty, cause simultaneously the radial edges modification of sector notch 3-20 of described elastic sealing element 3-2 larger, and then affect the sealing between the adjacent elastic sealing element 3-2 of lamination.If the bottom circumference of the conical surface thinner wall section of described elastic sealing element 3-2 is less than 300 °, the parcel power of the radial edges of the sector notch 3-20 of the sidewall of operating theater instruments and each elastic sealing element 3-2 a little less than, and then affect sealing between each elastic sealing element 3-2 and operating theater instruments, and when operation, when intraperitoneal air pressure during greater than 4KPa, gas leakage was obvious.
With respect to integrative-structure, housing 22 of the present utility model adopts Split type structure, is beneficial in operation process, according to practical situation, in time changes or cleaning switch cap 2-1; Simultaneously, in operation process, can clear up the bowl bodies 2-20 of receiver 2-2.In addition, in case one of switch cap 2-1 and receiver 2-2 are damaged, remaining parts can be organized perforator with another and be used in conjunction with, and are beneficial to saving.
Obviously, above-described embodiment is only for this utility model example clearly is described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And these belong to apparent variation or the change that spirit of the present utility model extended out and still are among protection domain of the present utility model.
Claims (4)
1. perforator air shuttle valve, this air shuttle valve are sealed and matched on a service aisle in perforator,
It is characterized in that comprising: the inner cup portion that elastomeric material is made, the bottom surface of this inner cup portion are plane, and these bottom surface central authorities are provided with cross-formed slits;
The sidewall of this inner cup portion is provided with four relative with four angles of described cross-formed slits respectively arcuate grooves;
The cylindricality operating theater instruments is suitable for passing described cross-formed slits, and the bottom surface of this inner cup portion is suitable for sealing described service aisle when not having operating theater instruments to pass.
2. perforator air shuttle valve according to claim 1, it is characterized in that: the top of described inner cup portion has integrated flange, this flange coordinates for the center through hole of the annular cover plate with a receiver and the sealed bottom of switch cap, so that described switch cap coordinates with the receiver upper-lower seal.
3. perforator air shuttle valve according to claim 1, is characterized in that: the degree of depth of each arcuate groove, increase gradually from top to bottom.
4. perforator air shuttle valve according to claim 1, is characterized in that: described four arcuate groove centrosymmetry distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202952433U CN203280462U (en) | 2013-05-24 | 2013-05-24 | Choke valve for puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202952433U CN203280462U (en) | 2013-05-24 | 2013-05-24 | Choke valve for puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203280462U true CN203280462U (en) | 2013-11-13 |
Family
ID=49536846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202952433U Expired - Lifetime CN203280462U (en) | 2013-05-24 | 2013-05-24 | Choke valve for puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203280462U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104083193A (en) * | 2014-07-15 | 2014-10-08 | 山东威瑞外科医用制品有限公司 | Air stopping valve for puncturing device |
| WO2014187093A1 (en) * | 2013-05-24 | 2014-11-27 | Ma Boping | Puncture outfit with relatively good sealing performance |
| CN105105842A (en) * | 2015-08-31 | 2015-12-02 | 杭州康基医疗器械有限公司 | Puncture outfit sealing cap with edges |
| CN106806009A (en) * | 2015-12-02 | 2017-06-09 | 广州迪克医疗器械有限公司 | Antiskid sealing ring and puncture outfit sheath and puncture outfit for puncture outfit |
| CN108697411A (en) * | 2016-01-28 | 2018-10-23 | 丹麦国家医院 | Biological specimen collection device |
-
2013
- 2013-05-24 CN CN2013202952433U patent/CN203280462U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187093A1 (en) * | 2013-05-24 | 2014-11-27 | Ma Boping | Puncture outfit with relatively good sealing performance |
| CN104083193A (en) * | 2014-07-15 | 2014-10-08 | 山东威瑞外科医用制品有限公司 | Air stopping valve for puncturing device |
| CN105105842A (en) * | 2015-08-31 | 2015-12-02 | 杭州康基医疗器械有限公司 | Puncture outfit sealing cap with edges |
| CN106806009A (en) * | 2015-12-02 | 2017-06-09 | 广州迪克医疗器械有限公司 | Antiskid sealing ring and puncture outfit sheath and puncture outfit for puncture outfit |
| CN108697411A (en) * | 2016-01-28 | 2018-10-23 | 丹麦国家医院 | Biological specimen collection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
|
| CX01 | Expiry of patent term |