CN201612943U - Remaining needle stop valve - Google Patents
Remaining needle stop valve Download PDFInfo
- Publication number
- CN201612943U CN201612943U CN2010203005682U CN201020300568U CN201612943U CN 201612943 U CN201612943 U CN 201612943U CN 2010203005682 U CN2010203005682 U CN 2010203005682U CN 201020300568 U CN201020300568 U CN 201020300568U CN 201612943 U CN201612943 U CN 201612943U
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- CN
- China
- Prior art keywords
- stop valve
- seam
- fluid stopping
- remaining needle
- flow
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an appliance capable of leading medium into human body, in particular to a remaining needle stop valve. A valve body is an elongated flaky structure, one side of the valve body is provided with a through hole, the other side of the through hole extends along the a length direction of the valve body to form a stop seam, and width of the stop seam is reduced gradually from the through hole to an extending direction. The remaining needle stop valve is structurally characterized by further comprising at least one projection distributed on the inner side of the stop seam, and the height of the projection is smaller than width of a corresponding position of the stop seam. Compared with the prior art, the remaining needle stop valve has the following advantages that fluctuation of the inner side of the stop seam can be increased by aid of the projection so as to lead the inner side not to be smooth again, and after entering the stop valve, a catheter is not easy to automatically slide and translate, thereby ensuring stop effect, preventing generating negative pressure and avoiding forming return blood and thrombus. In addition, the remaining needle stop valve is realized conveniently, is reliable and has fine effect.
Description
Technical field
This utility model relates to a kind ofly introduces intravital apparatus with medium, particularly a kind of remaining needle flow-stop valve.
Background technology
Remaining needle is a kind of medical needle set, claims the trocar again.Behind the retained needle puncture, the flexible pipe syringe needle is retained in the human vas, has avoided patient to suffer the misery of repeated localised puncture, also alleviate medical personnel's workload, reduced the probability of blood infection.Referring to accompanying drawing 1, when the flexible pipe syringe needle is kept somewhere, also keep a dosing conduit usually, be convenient to when needed perhaps to do other use for patient adds the injection medicine.Because this conduit is communicated with the needle tubing of remaining needle, obsolete the time, need to adopt a kind of flow-stop valve to oppress body, make this not conducting of dosing conduit.
Chinese patent ZL 200720038724.0 discloses a kind of remaining needle with flow-stopping clip, wherein said flow-stopping clip adopts two hold assemblies to be symmetrically distributed in the conduit both sides, because hold assembly and conduit are a kind of point-to-point pressure folders during clamping, and catheter surface is a smooth pipe, clamping part must be aimed at vessel cover during use, otherwise conduit is easy to skid off bite, causes fluid stopping to be lost efficacy, and promptly inconvenience is also impracticable.And traditional flow-stop valve as shown in Figure 1, and as described in above-mentioned open file, it is in operating process, because the smooth transition surface of fluid stopping seam causes conduit to skid off the fluid stopping seam easily, forms negative pressure and makes fluid stopping lose efficacy, and the remaining needle blood back forms thrombosis.
Utility model constitutes
The purpose of this utility model is to overcome weak point of the prior art and the remaining needle flow-stop valve that provides a kind of and make things convenient for, effectively the dosing conduit carried out fluid stopping.
The purpose of this utility model realizes by following approach:
The remaining needle flow-stop valve, valve body is microscler laminated structure, one sidepiece of valve body has been opened a through hole, this through hole is extended with a fluid stopping seam along the opposite side of valve body length direction, this fluid stopping seam diminishes gradually from the past bearing of trend seam of through hole is wide, and its structural feature is, also includes at least one projection, it is distributed in the inner side edge of fluid stopping seam, and the height of projection is less than its width at fluid stopping seam correspondence position.
Haunched member plays a kind of on-slip effect at this, make that the medial surface of fluid stopping seam is no longer level and smooth, thereby limited the slip of conduit in the fluid stopping seam, on the other hand, haunched member forms " bottleneck " on a kind of width on the width of the fluid stopping seam position at its place, make conduit can pass through at this under certain active force.During use, the dosing conduit is pressed in a fluid stopping seam side wide than crack, conduit just can not produce translation and slip like this, has guaranteed the fluid stopping effect, prevents the generation of negative pressure, has avoided the formation of blood back and thrombosis.
Since above-mentioned haunched member to add prior art be simply and easily, during use, only need also conduit slipped into that haunched member get final product by a side wide than crack in the fluid stopping seam, be the intersect restriction of line, so implement convenience with line, reliably, effective.
This utility model can further be specially:
Haunched member is distributed in from the long position of 40% ~ 70% seam, fluid stopping seam minimum widith place.
The width of fluid stopping seam is all less than conduit diameter, and it is long by the seam of reserving conduit diameter 125% above length on the minimum widith direction to sew on haunched member in fluid stopping.
When haunched member is one, following several concrete scheme can be arranged:
This haunched member is distributed in the inboard, one side of fluid stopping seam.
Or:
This haunched member is distributed in the inboard, one side of fluid stopping seam, has a concave arc structure, the corresponding distribution with haunched member of this concave arc structure on another corresponding inner side edge.The camber line that can make concave arc line and projection is same central point, also can make two camber lines be a kind of with fluid stopping seam consistent leniently arrive narrow distribution form.
When haunched member is two or more:
The fluid stopping that is interspersed about these a plurality of projections is stitched on two inner side edges.
Or:
On the equidistant or not equidistant inner side edge that is distributed in fluid stopping seam of these a plurality of haunched members.
In sum, this utility model has following advantage compared to existing technology: it has adopted a kind of haunched member to increase the fluctuating of fluid stopping seam inner side edge, make this inner side edge no longer level and smooth, conduit is difficult for producing from sliding and translation after entering flow-stop valve, guaranteed the fluid stopping effect, prevent the generation of negative pressure, avoided the formation of blood back and thrombosis, implement conveniently, reliably, effective.
Description of drawings
Accompanying drawing 1 is the structural representation of remaining needle in the prior art;
Accompanying drawing 2 is structural representations of flow-stop valve in the background technology;
Accompanying drawing 3 is structural representations of flow-stop valve among the embodiment 1 described in the utility model;
Accompanying drawing 4 is structural representations of flow-stop valve among the embodiment 2 described in the utility model;
Accompanying drawing 5 is structural representations of flow-stop valve among the embodiment 3 described in the utility model;
Accompanying drawing 6 is structural representations of flow-stop valve in the most preferred embodiment described in the utility model;
Below we are described further this utility model in conjunction with the embodiments.
Specific embodiment
Embodiment 1:
With reference to accompanying drawing 3, the remaining needle flow-stop valve, valve body is microscler laminated structure, one sidepiece of valve body has been opened a through hole 1, and this through hole is extended with a fluid stopping seam 2 along the opposite side of valve body length direction, and this fluid stopping seam diminishes gradually from the past bearing of trend seam of through hole is wide, has a haunched member 3 on the centre position of one inner side edge of fluid stopping seam, this structure can make and the same body structure of valve body, also can make the split structure, and the height of projection is less than its width at fluid stopping seam correspondence position.
It is same as the prior art that this utility model is not stated part.
Embodiment 2:
With reference to accompanying drawing 4, haunched member 3 is distributed in the inboard, one side of fluid stopping seam, has a concave arc structure 4, this concave arc structure 4 and haunched member 3 corresponding distributions on another corresponding inner side edge.The camber line that can make concave arc line and projection is same central point, also can make two camber lines be a kind of with fluid stopping seam consistent leniently arrive narrow distribution form.
It is identical with embodiment 1 that present embodiment is not stated part.
Embodiment 3:
With reference to accompanying drawing 5, have two haunched members 3 on the flow-stop valve, be interspersed about it at two inner side edges of fluid stopping seam 2.
It is identical with embodiment 1 that present embodiment is not stated part.
Most preferred embodiment:
With reference to accompanying drawing 6, have two haunched members 3 on the flow-stop valve, its parallel inner side edge that is distributed in fluid stopping seam 2.
It is identical with embodiment 1 that present embodiment is not stated part.
Claims (7)
1. remaining needle flow-stop valve, valve body is microscler laminated structure, one sidepiece of valve body has been opened a through hole (1), this through hole is extended with a fluid stopping seam (2) along the opposite side of valve body length direction, this fluid stopping seam diminishes gradually from the past bearing of trend seam of through hole is wide, it is characterized in that, also includes at least one projection (3), it is distributed in the inner side edge of fluid stopping seam, and the height of projection is less than its width at fluid stopping seam correspondence position.
2. remaining needle flow-stop valve according to claim 1 is characterized in that, haunched member is distributed in from the long position of 40% ~ 70% seam, fluid stopping seam minimum widith place.
3. remaining needle flow-stop valve according to claim 1 is characterized in that, flow-stop valve has a haunched member, and it is distributed in the inboard, one side of fluid stopping seam.
4. remaining needle flow-stop valve according to claim 1, it is characterized in that, flow-stop valve has a haunched member, this haunched member is distributed in the inboard, one side of fluid stopping seam, have a concave arc structure (4) on another corresponding inner side edge, the concave arc line of this concave arc structure and the camber line of projection are same central point.
5. remaining needle flow-stop valve according to claim 1 is characterized in that flow-stop valve has a plurality of projections, and the fluid stopping that is interspersed about these a plurality of projections is stitched on two inner side edges.
6. remaining needle flow-stop valve according to claim 1 is characterized in that flow-stop valve has a plurality of projections, and these a plurality of haunched members equidistantly distribute on the same inner side edge of fluid stopping seam.
7. remaining needle flow-stop valve according to claim 1 is characterized in that flow-stop valve has a plurality of projections, and these a plurality of haunched members are non-at interval to be distributed on the same inner side edge of fluid stopping seam equidistantly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203005682U CN201612943U (en) | 2010-01-13 | 2010-01-13 | Remaining needle stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203005682U CN201612943U (en) | 2010-01-13 | 2010-01-13 | Remaining needle stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201612943U true CN201612943U (en) | 2010-10-27 |
Family
ID=42999315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203005682U Expired - Lifetime CN201612943U (en) | 2010-01-13 | 2010-01-13 | Remaining needle stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201612943U (en) |
-
2010
- 2010-01-13 CN CN2010203005682U patent/CN201612943U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUZHOU BESTWAY MED-MACROMOLECULE CORP. Free format text: FORMER OWNER: CHEN YONGXI Effective date: 20120419 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350003 FUZHOU, FUJIAN PROVINCE TO: 350008 FUZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120419 Address after: 350008 No. 138, Pu Pu Road, Cangshan District, Fujian, Fuzhou Patentee after: Fuzhou Shi Shi Wei medical polymer Co., Ltd. Address before: Fu Taijiang Village District of Fuzhou City, Fujian province 350003 15 3 Building No. 305 Patentee before: Chen Yongxi |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 350008 No. 138, Pu Pu Road, Cangshan District, Fujian, Fuzhou Patentee after: Fuzhou Bestway Med-Macromolecule Corp. Address before: 350008 No. 138, Pu Pu Road, Cangshan District, Fujian, Fuzhou Patentee before: Fuzhou Shi Shi Wei medical polymer Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101027 |