CN201847741U - Puncture device - Google Patents
Puncture device Download PDFInfo
- Publication number
- CN201847741U CN201847741U CN2010205511918U CN201020551191U CN201847741U CN 201847741 U CN201847741 U CN 201847741U CN 2010205511918 U CN2010205511918 U CN 2010205511918U CN 201020551191 U CN201020551191 U CN 201020551191U CN 201847741 U CN201847741 U CN 201847741U
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- CN
- China
- Prior art keywords
- ring
- lip ring
- perforator
- far
- cylindrical shell
- 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 discloses a puncture device for minimally invasive surgery. The puncture device comprises a sleeve component and a puncture rod, wherein the sleeve component comprises a sleeve body and a near-end sealing component; the sealing component comprises an annular sealing part provided with a near end, an annular sealing middle end and a far end; the cross sections of the near end, the middle end and the far end of the annular sealing part are three circles with different diameters respectively; and the inner diameters at the near end and the near end are larger than the inner diameter at the annular sealing middle end, so that two bell mouths which are oppositely arranged are formed on the annular sealing part. The benefits of the puncture device are mainly reflected as follows: the sealing component has good sealing effect, the process is simple, and the structure is simple.
Description
Technical field
This utility model relates to a kind of perforator, relates in particular to a kind of perforator with novel sealing structure.
Background technology
Perforator is a kind ofly to pierce through stomach wall and for other operating theater instruments provide the operating theater instruments that enters the body cavity passage, belong to a kind of Minimally Invasive Surgery apparatus.
Perforator generally includes as the sleeve assembly of other operating theater instruments admission passages and the puncturing lever in the described sleeve assembly.For transdermal, earlier cut epiderm skin, then puncturing lever transdermal and enter body cavity with scalpel.Exert pressure by the near-end to described puncturing lever, skin is passed at the tip that promotes described puncturing lever, enters body cavity up to it.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.
At present, perforator uses a kind of lip ring usually, this lip ring can be surrounded on around the apparatus that inserts in the sleeve assembly, thereby stop intraperitoneal gas to leak, shown in Chinese patent CN200510130187.8, comprising: a plurality of diaphragm seals, the adjacent diaphragm seal part that overlaps each other, conical sealing member of final formation, the round tubular apparatus of certain diameter can be passed in conical top, and conical bottom is fixedly connected on the thimble assembly near-end.When puncturing lever or other apparatuses during by sleeve assembly, lip ring is opened and encircles in the surface of puncturing lever or other apparatuses and seals.
Said structure Use Limitation fruit is fine, but requires height for the processing technique level, and structure is more complicated also, can not generally be adopted.
The utility model content
The purpose of this utility model is the perforator that proposes a kind of simple in structure, handling ease.
The purpose of this utility model will be achieved by the following technical programs:
A kind of perforator, comprise: sleeve assembly and puncturing lever, described sleeve assembly comprises cylindrical shell and proximal seal assembly, described cylindrical shell is used for accepting and guiding described puncturing lever to pass, described black box includes a lip ring, described lip ring is the elastomer along the axis setting of the cylindrical shell of described sleeve assembly, described lip ring comprises a near-end, one ring packing middle-end, one far-end, described near-end, ring packing middle-end and far-end limit and form a ring packing inner chamber, the near-end of described lip ring, the cross section of middle-end and far-end is respectively the circle of three different-diameters, the internal diameter of described near-end and far-end is all greater than the internal diameter of described ring packing middle-end, thereby makes described lip ring form the horn mouth of 2 opposing settings.
Further, described lip ring is formed by stacking successively by at least 2 sheet rubbers.
Further, described lip ring is one-body molded by elastomeric material.
Further, described perforator also comprises the sealing stiffener assembly, and described sealing stiffener assembly is arranged at described ring packing middle-end outer surface, is used to tighten described ring packing middle-end its inner chamber is reduced.
Further, described sealing stiffener assembly comprises support and at least one elastic packing band, and described support is provided with at least two root posts, and the two ends of described elastic packing band are fixed on the described column.
Further, described elastic packing band is a rubber strip.
Further, described black box also comprises a duckbill sealing member, and described duckbill sealing member is arranged between described lip ring and the described distal barrel end.
The beneficial effects of the utility model are mainly reflected in: black box good sealing effect, production technology that this utility model relates to are simple.
Description of drawings
Fig. 1 is the perspective view of lip ring;
Fig. 2 is the cutaway view of lip ring;
Fig. 3 is the decomposition texture sketch map of perforator.
1 lip ring, 11 near-ends, 12 ring packing middle-ends
13 far-ends, 14 elastic packing bands, 15 supports
151 columns, 16 ring packing inner chambers, 2 puncturing levers
21 puncturing lever near-ends, 22 puncturing lever far-ends, 3 sleeve assemblies
31 cylindrical shells, 311 cylindrical shell near-ends, 312 distal barrel end
32 cylinder lumens
The specific embodiment
As Figure 1-3, this utility model provides a kind of perforator, and described perforator comprises: puncturing lever 2 and sleeve assembly 3, described puncturing lever 2 comprises: puncturing lever near-end 21 and puncturing lever far-end 22.Described sleeve assembly 3 comprises: cylindrical shell 31 and cylinder lumen 32, described cylindrical shell 31 comprises: cylindrical shell near-end 311 and distal barrel end 312, described cylindrical shell near-end 311 and the described cylinder lumen 32 of distal barrel end 312 common qualifications, described cylinder lumen 32 is used for accepting and guiding described puncturing lever 2 to pass.
Wherein, described cylindrical shell 31 is one-part form or two-part, when described cylindrical shell 31 is one-part form, there is a lip ring 1 to be arranged at described cylindrical shell near-end 311 places, described distal barrel end also can be provided with a duckbill sealing member (not shown), at this moment, described duckbill sealing member is arranged at described cylindrical shell near-end 311 places, and the more described lip ring 1 of described duckbill sealing member approaches described distal barrel end 312 more.When described cylindrical shell 31 was the two-part of prior art, cylindrical shell generally was divided into upper casing and sleeve two parts, and described lip ring 1 is arranged in the described upper casing, and simultaneously, described duckbill sealing member is arranged in the sleeve.
Shown in Fig. 1-2, the lip ring 1 in this utility model is the elastomer along the axis setting of described sleeve assembly 3.Described lip ring 1 comprises: near-end 11, ring packing middle-end 12, far-end 13, and by lip ring 11, ring packing middle-end 12 and the far-end 13 common ring packing inner chambers 16 that form that limit.The cross section of described near-end 11, ring packing middle-end 12 and described far-end 13 is circle, and the internal diameter of described near-end 11 and described far-end 13 will be far longer than the internal diameter of described ring packing middle-end 12, thereby make described lip ring form the horn mouth of 2 opposing settings, promptly be similar to hourglass shape.Described ring packing middle-end can closely be encircled the Minimally Invasive Surgery apparatus through described sleeve assembly.
Described perforator 1 also comprises the sealing stiffener assembly, and described sealing stiffener assembly comprises support 15 and elastic packing band 14, and described elastic packing band 14 is for having better elastic rubber strip.Described support 15 is arranged on the described cylindrical shell near-end 311, and described support 15 comprises: column 151, and described column is used for fixing the end of described elastic packing band 14, and every elastic packing band 14 need be fixing by two columns 151 usually.
Described elastic packing band 14 is handed over mutually and is buckled, solid is wound in the outer surface of described ring packing middle-end 12, make that by certain pulling force the ring packing inner chamber is closed, the two ends of described elastic packing band 14 are fixed on the corresponding column 151, because the column 151 that is used for fixing elastic packing band 14 is apart from each other spatially, so elastic packing band 14 adapt to from 5mm to 12mm diameter apparatus by the time telescopic ratio can be very not big, thereby can realize sealing and can be very not big to the frictional resistance of apparatus.
When the Minimally Invasive Surgery apparatus did not pass through lip ring 1, described ring packing inner chamber 16 can keep sealing state under the effect of described sealing stiffener assembly; When the Minimally Invasive Surgery apparatus passes through lip ring 1, it is big that the internal diameter of described ring packing middle-end 12 becomes, and the inwall of described ring packing middle-end 12 is encircled in the surface of apparatus apparatus is sealed, and elastic packing band 14 elongates, pulling force increases, thereby has guaranteed the quality of sealing.
In this preferred embodiment, described lip ring 1 is one-body molded by elastomer, makes described lip ring 1 have tear resistance and easy trafficability characteristic preferably like this.Certainly, described lip ring also can equally be stacked by 2 above sheet rubber recalling rose petals and form.
In this preferred embodiment, described lip ring and duckbill sealing member are referred to as black box, for the consideration of cost, can save the duckbill sealing member.Like this, described cylindrical shell 31 is during as one-part form, and the designs simplification of whole apparatus, cost also reduce further.
This utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within the protection domain of the present utility model.
Claims (7)
1. perforator, comprising: sleeve assembly and puncturing lever, described sleeve assembly comprise cylindrical shell and proximal seal assembly, and described cylindrical shell is used for accepting and guiding described puncturing lever to pass, and described black box includes a lip ring, it is characterized in that:
Described lip ring is the elastomer along the axis setting of described sleeve cylindrical shell, described lip ring comprises a near-end, a ring packing middle-end, a far-end, described near-end, ring packing middle-end and far-end limit and form a ring packing inner chamber, the cross section of the near-end of described lip ring, middle-end and far-end is respectively the circle of three different-diameters, the internal diameter of described near-end and far-end is all greater than the internal diameter of described ring packing middle-end, thereby makes described lip ring form the horn mouth of 2 opposing settings.
2. perforator according to claim 1 is characterized in that: described lip ring is formed by stacking successively by at least 2 sheet rubbers.
3. perforator according to claim 1 is characterized in that: described lip ring is one-body molded by elastomeric material.
4. perforator according to claim 1 is characterized in that: described perforator also comprises the sealing stiffener assembly, and described sealing stiffener assembly is arranged at described ring packing middle-end outer surface, is used to tighten described ring packing middle-end its inner chamber is reduced.
5. perforator according to claim 4, it is characterized in that: described sealing stiffener assembly comprises support and at least one elastic packing band, described support is provided with at least two root posts, and described support is arranged at described cylindrical shell near-end, and the two ends of described elastic packing band are fixed on the described column.
6. perforator according to claim 5 is characterized in that: described elastic packing band is a rubber strip.
7. perforator according to claim 1 is characterized in that: described black box also comprises a duckbill sealing member, and described duckbill sealing member is arranged between described lip ring and the described distal barrel end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205511918U CN201847741U (en) | 2010-09-30 | 2010-09-30 | Puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205511918U CN201847741U (en) | 2010-09-30 | 2010-09-30 | Puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201847741U true CN201847741U (en) | 2011-06-01 |
Family
ID=44090160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205511918U Expired - Lifetime CN201847741U (en) | 2010-09-30 | 2010-09-30 | Puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201847741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940492A (en) * | 2010-09-30 | 2011-01-12 | 苏州天臣国际医疗科技有限公司 | Puncture outfit |
-
2010
- 2010-09-30 CN CN2010205511918U patent/CN201847741U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940492A (en) * | 2010-09-30 | 2011-01-12 | 苏州天臣国际医疗科技有限公司 | Puncture outfit |
| CN101940492B (en) * | 2010-09-30 | 2012-01-25 | 苏州天臣国际医疗科技有限公司 | Puncture outfit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110601 Effective date of abandoning: 20120125 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110601 Effective date of abandoning: 20120125 |