CN203971078U - A kind of dual pathways entry needle - Google Patents
A kind of dual pathways entry needle Download PDFInfo
- Publication number
- CN203971078U CN203971078U CN201420238347.5U CN201420238347U CN203971078U CN 203971078 U CN203971078 U CN 203971078U CN 201420238347 U CN201420238347 U CN 201420238347U CN 203971078 U CN203971078 U CN 203971078U
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- needle
- circular cylinder
- hollow circular
- outer body
- dual pathways
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Abstract
The utility model discloses a kind of dual pathways entry needle, comprise syringe needle and needle stand, syringe needle is fixed on needle stand, the end of syringe needle is needle point, it is characterized in that: the top of described needle point is solid taper shape, and top arranges a groove, the peripheral junction of groove and needle point forms sharp acute angle; On the sidewall of needle point, be provided with injection orifice; Described needle stand comprises outer body, is arranged at hollow circular cylinder and check valve in outer body; In hollow circular cylinder, be liquid flow channel, inside arranges one deck filter membrane; In hollow circular cylinder with between outer body, by flap brace, be connected, form liquid flow pass; Described check valve is arranged at the side that hollow circular cylinder liquid flows into.Entry needle of the present utility model adopts dual pathways setting, simple in structure, easy to use, avoids the bad hidden danger of patient when injection, and simple and practical, can extensively should have in clinical care.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments articles for use, particularly a kind of dual pathways entry needle.
Background technology
Syringe is a kind of common medical instruments, mainly in order to liquid medicine injection or drawing liquid.Syringe is comprised of the foraminate syringe of front end band and the piston core bar, the entry needle that match.Syringe is used for a small amount of liquid being injected or detaching the region that other method cannot be approaching, very high for the requirement of entry needle while therefore injecting.At present, the injection of clinical use is encapsulated in vial more, and traditional syringe needle majority is the facial needle point of splay end, and in configuration infusion medicine process, the facial needle point of splay end easily cuts into the little bottle plug of containing medicines the fragment of aperture size and brings in injection.Even while cutting vial aspiration medicinal liquid with emery wheel, chips of glass also can enter in injection, as rubber grain in infusion process enters in blood samples of patients with liquid, will bring hidden danger to patient, through clinical observation, also truly have bottle stopper fragment to bring the case that infusion reaction occurs in transfusion into.
Summary of the invention
This utility model provide a kind of easy to use, with the Double way injector of filtering function.
For addressing the above problem, the technical solution adopted in the utility model is: a kind of dual pathways entry needle, comprise syringe needle and needle stand, syringe needle is fixed on needle stand, the end of syringe needle is needle point, its innovative point is: the top of described needle point is solid taper shape, and top arranges a groove, and the peripheral junction of groove and needle point forms sharp acute angle; On the sidewall of needle point, be provided with injection orifice;
Described needle stand comprises outer body, is arranged at hollow circular cylinder and check valve in outer body; In hollow circular cylinder, be liquid flow channel, inside arranges one deck filter membrane; In hollow circular cylinder with between outer body, by flap brace, be connected, form liquid flow pass; Described check valve is arranged at the side that hollow circular cylinder liquid flows into.
Further, described outer body is comprised of three sections of reduced diameter section, conical surface section and enlarged diameter sections, and a side of described hollow circular cylinder is arranged at the middle part of outer cover body cone section.
Further, the concrete structure of described check valve is: the flap valve mouth that comprises horn-like rubber ring and be comprised of some rubber clacks; Described rubber ring is connected with a side of hollow circular cylinder, and its opening direction points to syringe needle direction, and its edge props up outer body; Described flap valve mouth is arranged at hollow circular cylinder inside.
Further, in the outer body of described rubber ring rear side, a bulge loop is set.
Further, the front end of described described hollow circular cylinder arranges an inflexed baffle ring, and described flap valve mouth is arranged at baffle ring rear side.
Further, both sides, described needle point top have groove.
The beneficial effects of the utility model:
1, entry needle of the present utility model adopts dual pathways setting, simple in structure, easy to use, avoids the bad hidden danger of patient when injection, and simple and practical, can extensively should have in clinical care.
2, this utility model entry needle is on the basis of traditional entry needle, tip portion is transformed into taper shape, in syringe needle sidewall, open an injection orifice, recessing is opened in injection orifice both sides, make it when preparation transfusion, syringe needle more easily inserts bottle stopper, prevents that syringe needle from stopping up, and the lower fragment of bottle stopper cutting can not brought in transfusion, use safer.
3, in this utility model entry needle, a filter membrane is set, while extracting medicinal liquid, through filtering in injection, avoids fragment to bring in transfusion, guarantee to use safety;
4, the medicinal liquid of transfusion and injection circulates in independent separately passage, and while preventing from injecting, filter membrane increases the resistance of injection.
Accompanying drawing explanation
Fig. 1 is the structural front view of this utility model entry needle;
Fig. 2 is the structure left view of this utility model entry needle;
Schematic diagram when Fig. 3 is this utility model entry needle drawing liquid.
Schematic diagram when Fig. 4 is the injection of this utility model entry needle.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is elaborated.
Double way injector as Figure 1-4, a kind of dual pathways entry needle comprises syringe needle 1 and needle stand 2, and syringe needle 1 is fixed on needle stand 2, and the end of syringe needle 1 is needle point 3.
Needle point 3, top is solid taper shape, and top arranges a groove 31, and groove 31 forms sharp acute angle with the peripheral junction of needle point 3; On the sidewall of needle point 3, be provided with injection orifice 32.
Needle point 3 parts are transformed into taper shape, in syringe needle sidewall, open an injection orifice 32, recessing 31 is opened in injection orifice 32 both sides, make it when preparation transfusion, syringe needle 3 more easily inserts bottle stopper, prevents that syringe needle 3 from stopping up, and the lower fragment of bottle stopper cutting can not brought in transfusion, use safer.
Needle stand 2, comprises outer body 21, is arranged at hollow circular cylinder 22 and check valve in outer body 21; In hollow circular cylinder 22, be liquid flow channel, inside arranges one deck filter membrane 24; In hollow circular cylinder 22 with between outer body 21, by flap brace 25, be connected, form liquid flow pass; Check valve 23 is arranged at the side that hollow circular cylinder 22 liquid flow into.
The employing dual pathways arranges, and while extracting medicinal liquid, through filtering, injects again, avoids fragment to bring in transfusion, guarantees to use safety, and during injection, liquid flows out in injecting liquid drug passage, avoids filter membrane to increase the resistance of injection.
As this utility model embodiment more specifically, outer body 21 is comprised of tri-sections of reduced diameter section 21a, conical surface section 21b and enlarged diameter section 21c, and a side of hollow circular cylinder 22 is arranged at the middle part of outer cover body cone section 21b.
As this utility model embodiment more specifically, the concrete structure of check valve 23 is: comprise horn-like rubber ring 23a and the flap valve mouth 23b being comprised of some rubber clacks being connected with rubber ring 23a; The opening direction of rubber ring 23a points to needle point 3 directions, and its edge props up outer body 21; Flap valve mouth 23b stretches into hollow circular cylinder 22 inside.
As this utility model embodiment more specifically, the interior bulge loop 4 that arranges of outer body 21 of rubber ring 23a rear side.
As this utility model embodiment more specifically, the front end of hollow circular cylinder 22 arranges an inflexed baffle ring 5, and flap valve mouth 23b is arranged at baffle ring 5 rear sides.
Bulge loop 4 and baffle ring 5 better play the effect of divider passages.
As this utility model embodiment more specifically, needle point 3 both sides, top have groove 31.
When syringe drawing liquid, rubber ring 23a expands under the effect of pressure, closing liquid flow pass, and liquid, through hollow circular cylinder, is opened flap valve mouth, enters in syringe after filtration after membrane filtration; When injector to inject, flap valve mouth 23b closes under pressure, and closing liquid flows into, and passage rubber ring 23a shrinks under the effect of pressure, opens liquid flow pass and injects.
Claims (6)
1. a dual pathways entry needle, comprises syringe needle and needle stand, and syringe needle is fixed on needle stand, the end of syringe needle is needle point, it is characterized in that: the top of described needle point is solid taper shape, and top arranges a groove, the peripheral junction of groove and needle point forms sharp acute angle; On the sidewall of needle point, be provided with injection orifice;
Described needle stand comprises outer body, is arranged at hollow circular cylinder and check valve in outer body; In hollow circular cylinder, be liquid flow channel, inside arranges one deck filter membrane; In hollow circular cylinder with between outer body, by flap brace, be connected, form liquid flow pass; Described check valve is arranged at the side that hollow circular cylinder liquid flows into.
2. a kind of dual pathways entry needle according to claim 1, is characterized in that: described outer body is comprised of three sections of reduced diameter section, conical surface section and enlarged diameter sections, and a side of described hollow circular cylinder is arranged at the middle part of outer cover body cone section.
3. a kind of dual pathways entry needle according to claim 1 and 2, is characterized in that: the concrete structure of described check valve is: the flap valve mouth that comprises horn-like rubber ring and be comprised of some rubber clacks; Described rubber ring is connected with a side of hollow circular cylinder, and its opening direction points to syringe needle direction, and its edge props up outer body; Described flap valve mouth is arranged at hollow circular cylinder inside.
4. a kind of dual pathways entry needle according to claim 3, is characterized in that: in the outer body of described rubber ring rear side, a bulge loop is set.
5. a kind of dual pathways entry needle according to claim 3, is characterized in that: the front end of described described hollow circular cylinder arranges an inflexed baffle ring, and described flap valve mouth is arranged at baffle ring rear side.
6. a kind of dual pathways entry needle according to claim 3, is characterized in that: both sides, described needle point top have groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238347.5U CN203971078U (en) | 2014-05-12 | 2014-05-12 | A kind of dual pathways entry needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238347.5U CN203971078U (en) | 2014-05-12 | 2014-05-12 | A kind of dual pathways entry needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203971078U true CN203971078U (en) | 2014-12-03 |
Family
ID=51968548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420238347.5U Expired - Fee Related CN203971078U (en) | 2014-05-12 | 2014-05-12 | A kind of dual pathways entry needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203971078U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105708693A (en) * | 2016-03-30 | 2016-06-29 | 王高松 | Filter needle for injector |
| CN105943383A (en) * | 2016-05-27 | 2016-09-21 | 浙江康德莱医疗器械股份有限公司 | A unidirectional filter medicine preparation injection needle |
| CN106362254A (en) * | 2016-10-14 | 2017-02-01 | 山东威高集团医用高分子制品股份有限公司 | Bidirectional filter syringe needle |
| CN114041996A (en) * | 2021-12-27 | 2022-02-15 | 南通市妇幼保健院 | Anaesthetic drug dispensing device |
-
2014
- 2014-05-12 CN CN201420238347.5U patent/CN203971078U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105708693A (en) * | 2016-03-30 | 2016-06-29 | 王高松 | Filter needle for injector |
| CN105943383A (en) * | 2016-05-27 | 2016-09-21 | 浙江康德莱医疗器械股份有限公司 | A unidirectional filter medicine preparation injection needle |
| CN105943383B (en) * | 2016-05-27 | 2019-04-26 | 浙江康德莱医疗器械股份有限公司 | Unidirectional filtering dispensation injection needle |
| CN106362254A (en) * | 2016-10-14 | 2017-02-01 | 山东威高集团医用高分子制品股份有限公司 | Bidirectional filter syringe needle |
| CN114041996A (en) * | 2021-12-27 | 2022-02-15 | 南通市妇幼保健院 | Anaesthetic drug dispensing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150512 |
|
| EXPY | Termination of patent right or utility model |