CN108434546A - A kind of Needleless injection connector - Google Patents
A kind of Needleless injection connector Download PDFInfo
- Publication number
- CN108434546A CN108434546A CN201810335956.5A CN201810335956A CN108434546A CN 108434546 A CN108434546 A CN 108434546A CN 201810335956 A CN201810335956 A CN 201810335956A CN 108434546 A CN108434546 A CN 108434546A
- Authority
- CN
- China
- Prior art keywords
- elastic seal
- seal cartridge
- tube joint
- transfusion tube
- syringe adapter
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 30
- 239000007924 injection Substances 0.000 title claims abstract description 30
- 238000001802 infusion Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention provides a kind of Needleless injection connectors, including syringe adapter, tapered elastic seal cartridge, transfusion tube joint, the front end outer side of syringe adapter has the external screw thread being connect with injector screw, there is the annular slot being connected on transfusion tube joint on the inside of the tail end of syringe adapter, elastic packing is sheathed in syringe adapter, the front end of transfusion tube joint has the cone head part extending into elastic seal cartridge, pars contractilis with corrugated tube shape on the peripheral surface of elastic seal cartridge, the tail end of transfusion tube joint has the outwardly extending extension interconnecting piece being inserted in for woven hose, transfusion tube joint is provided with center infusion channel, the side opening of at least two connection center infusion channels is provided on the front end peripheral surface of cone head part, when elastic seal cartridge is not by outer force effect, the side opening is blocked by elastic seal cartridge inner wall.The tail end of transfusion tube joint, which has, extends interconnecting piece, can be inserted directly into woven hose, easy to connect；Injection is not passed through elastic seal cartridge, more hygienic.
Description
Technical field
The invention belongs to the field of medical instrument technology, are related to a kind of Needleless injection connector.
Background technology
Currently, medical needleless joint on the market there are spare and accessory parts more, the problem of installing and dismounting inconvenience.Such as Patent No.
The Chinese invention patent of 200820122640.X, discloses a kind of positive pressure connector for no-needle transfusion, including inner hollow
Shell and the jointing with hollow tube chamber, the slide core with hollow cavity, elastomer, the setting of jointing right end
There is annular groove, with cage connection；Slide core is sleeved in annular groove, and slide core is more than close to jointing one end outer diameter far from one end
Outer diameter, slide core from above-mentioned one end to being arcwall face the other end, in it is in situ when, arcwall face and far from jointing one end with
Outer casing inner wall matches；Elastomer is arranged in annular groove, and one end is contacted with jointing, and one end is relatively large in diameter one with slide core
End in contact；There is the channel being connected to internal cavity on the arcwall face of slide core；The right side of separate jointing one end of slide core
Side is inclined-plane.
Above-mentioned elastomer and mobile core is two kinds of individual accessories, and assembly is inconvenient, and injection will flow when injection
Through mobile core, and mobile core is exposed to outside, unhygienic.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of Needleless injection connector, structure
Simply, spare and accessory parts are few, and assembly is quick, easy to connect and hygienic.
Object of the invention can be realized by the following technical scheme：A kind of Needleless injection connector, which is characterized in that including
Syringe adapter, tapered elastic seal cartridge, transfusion tube joint, the front end outer side of syringe adapter has and injector screw
The tail end inside of the external screw thread of connection, syringe adapter has the annular slot being connected on transfusion tube joint, the elasticity close
Big envelope is set in syringe adapter, and the front end of transfusion tube joint has the cone head part extending into elastic seal cartridge, the elasticity
Pars contractilis with corrugated tube shape on the peripheral surface of sealing shroud, the tail end of the transfusion tube joint have outwardly extending for infusion
The extension interconnecting piece that pipe is inserted in, the transfusion tube joint are provided with center infusion channel, be provided on the front end peripheral surface of cone head part to
The side opening of few two connections center infusion channel, when elastic seal cartridge is not by outer force effect, the side opening is by elastic seal cartridge
Wall blocks.
Syringe adapter is connect with injector screw, and transfusion tube joint is directly socketed with woven hose, the injection-tube of syringe
Head squeezes elastic seal cartridge, and elastic seal cartridge is made to be shunk to cone head part, and cone head part is made to expose elastic seal cartridge, after being fully connected,
Cone head part will be inserted into injecting adaptor, and injection enters center infusion channel along the side opening of cone head part, be connected from extending
Socket part enters woven hose.After syringe disconnects, elastic seal cartridge automatically blocks side opening after trailing, and prevents liquid
It is overflowed from side opening.Injection is directly entered from syringe in transfusion tube joint, i.e., hygienic operation is again convenient.
Further, there is annular groove, elastic seal cartridge tail portion is in annular groove on the transfusion tube joint.
Further, the annular strip with evagination in the middle part of the transfusion tube joint, annular strip and syringe adapter
Annular slot inlay card.
Further, the front end outer side of the elastic seal cartridge has the support ring of annular, support ring lateral surface and injection
Device inner nosepiece wall against.It is more steady that support ring makes elastic packing be sleeved in telescopic process, will not swing.
Further, the front end face of the elastic seal cartridge is flushed with the front end face of syringe adapter.
Further, the front end of the elastic seal cartridge has globular part, and it is in spherical inner cavity that the globular part, which has,.Ball
Shape portion increases the front end of the elastic seal cartridge flared deformability after compressed so that can be with after globular part is compressed
It is mutually squeezed with syringe adapter inner wall, improves sealing effect, prevent injection from the connection of syringe adapter and transfusion tube joint
It is overflowed in gap.
Compared with prior art, this Needleless injection connector has the following advantages：
1. parts there are three, simple in structure, assembly and disassembly is convenient, and syringe adapter is extracted transfusion tube joint, is made
Annular slot is detached with annular strip, you can is dismantled；
2. the tail end of transfusion tube joint, which has, extends interconnecting piece, can be inserted directly into woven hose, it is easy to connect；
3. being connect with syringe simply, the injecting adaptor of syringe squeezes elastic seal cartridge, and elastic seal cartridge is shunk so that
The front end of cone head part is inserted into injection-tube, and connection with syringe and injection are all than smoothly, elastic packing in injection process
Set also acts as sealing effect.
4. injection is directly flowed into from syringe in transfusion tube joint, it is not passed through elastic seal cartridge, it is more hygienic.
Description of the drawings
Fig. 1 is the sectional view of this Needleless injection connector.
Fig. 2 is the sectional view after this Needleless injection connector is connect with syringe and woven hose.
In figure, 1, syringe adapter；11, external screw thread；12, annular slot；2, elastic seal cartridge；21, pars contractilis；22, it props up
Pushing out ring；23, globular part；24, inner cavity；3, transfusion tube joint；31, cone head part；32, extend interconnecting piece；33, center infusion channel；
34, side opening；35, annular groove；36, annular strip.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1 and Figure 2, this Needleless injection connector includes syringe adapter 1, tapered elastic seal cartridge 2, infusion
Pipe fitting 3, the front end outer side of syringe adapter 1 have the external screw thread 11 being connect with injector screw, the tail end of syringe adapter 1
Inside has the annular slot 12 being connected on transfusion tube joint 3.Elastic seal cartridge 2 is set in syringe adapter 1, and woven hose connects
First 3 front end has the cone head part 31 extending into elastic seal cartridge 2, has ripple on the peripheral surface of the elastic seal cartridge 2
The pars contractilis 21 of tubulose.The tail end of the transfusion tube joint 3 has the outwardly extending extension interconnecting piece 32 being inserted in for woven hose,
The transfusion tube joint 3 is provided with center infusion channel 33, and at least two connection centers are provided on the front end peripheral surface of cone head part 31
The side opening 34 of infusion channel 33, when elastic seal cartridge 2 is not by outer force effect, the side opening 34 is sealed by 2 inner wall of elastic seal cartridge
It is stifled.
There is annular groove 35,2 tail portion of elastic seal cartridge is in annular groove 35 on the transfusion tube joint 3.It is described
3 middle part of transfusion tube joint has the annular strip 36 of evagination, 12 inlay card of annular slot of annular strip 36 and syringe adapter 1.
There is the front end outer side of the elastic seal cartridge 2 support ring 22 of annular, 22 lateral surface of support ring to be connect with syringe
First 1 inner wall against.Support ring 22 so that elastic seal cartridge 2 is more steady in telescopic process, will not swing.The elasticity
The front end face of sealing shroud 2 is flushed with the front end face of syringe adapter 1, and the front end of the elastic seal cartridge 2 has globular part 23, institute
It is in spherical inner cavity 24 to state globular part 23 to have.Globular part 23 increases the front end of elastic seal cartridge 2 after compressed to abduction
The deformability opened so that can mutually be squeezed with 1 inner wall of syringe adapter after globular part 23 is compressed, improve sealing effect, prevented
Only injection is overflowed from connection gap of the syringe adapter 1 with transfusion tube joint 3.
Operation principle：Syringe adapter 1 is connect with injector screw, and transfusion tube joint 3 is directly socketed with woven hose, injection
The injecting adaptor of device squeezes elastic seal cartridge 2, and elastic seal cartridge 2 is made to be shunk to cone head part 31, so that cone head part 31 is exposed elasticity close
Big envelope 2, after being fully connected, cone head part 31 will be inserted into injecting adaptor, and injection enters along the side opening 34 of cone head part 31
To center infusion channel 33, woven hose is entered from interconnecting piece 32 is extended.Injection directly enters woven hose from syringe and connects
In first 3, i.e., hygienic operation is again convenient.After syringe disconnects, elastic seal cartridge 2 trail after automatically by 34 envelope of side opening
It is stifled, prevent liquid from being overflowed from side opening 34.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (6)
1. a kind of Needleless injection connector, which is characterized in that connect including syringe adapter, tapered elastic seal cartridge, woven hose
Head, the front end outer side of syringe adapter have the external screw thread being connect with injector screw, have on the inside of the tail end of syringe adapter
The annular slot being connected on transfusion tube joint, the elastic packing are sheathed in syringe adapter, the front end of transfusion tube joint
With the cone head part extending into elastic seal cartridge, the pars contractilis with corrugated tube shape on the peripheral surface of the elastic seal cartridge,
There is the tail end of the transfusion tube joint the outwardly extending extension interconnecting piece being inserted in for woven hose, the transfusion tube joint to be provided with
Center infusion channel is provided with the side opening of at least two connection center infusion channels on the front end peripheral surface of cone head part, close in elasticity
The side opening is blocked by elastic seal cartridge inner wall when big envelope is not by outer force effect.
2. a kind of Needleless injection connector according to claim 1, which is characterized in that have annular on the transfusion tube joint
Groove, elastic seal cartridge tail portion is in annular groove.
3. a kind of Needleless injection connector according to claim 2, which is characterized in that have in the middle part of the transfusion tube joint outer
The annular slot inlay card of convex annular strip, annular strip and syringe adapter.
4. a kind of Needleless injection connector according to claim 3, which is characterized in that the front end outer side of the elastic seal cartridge
Support ring with annular, support ring lateral surface and syringe adapter inner wall against.
5. a kind of Needleless injection connector according to claim 4, which is characterized in that the front end face of the elastic seal cartridge with
The front end face of syringe adapter flushes.
6. a kind of Needleless injection connector according to claim 5, which is characterized in that the front end of the elastic seal cartridge has
Globular part, it is in spherical inner cavity that the globular part, which has,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810335956.5A CN108434546A (en) | 2018-04-16 | 2018-04-16 | A kind of Needleless injection connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810335956.5A CN108434546A (en) | 2018-04-16 | 2018-04-16 | A kind of Needleless injection connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108434546A true CN108434546A (en) | 2018-08-24 |
Family
ID=63200320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810335956.5A Pending CN108434546A (en) | 2018-04-16 | 2018-04-16 | A kind of Needleless injection connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108434546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114557886A (en) * | 2022-01-21 | 2022-05-31 | 宁波汉科医疗器械有限公司 | Needleless connector and medicine adding assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061639Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN203898862U (en) * | 2014-04-08 | 2014-10-29 | 联和医疗器材股份有限公司 | Needle-free injection positive-pressure connecting device |
| US20150102245A1 (en) * | 2013-10-16 | 2015-04-16 | Yi-Jin Promold Enterprise Ltd. | Connector against contrary flowing for medical treatment |
| CN205007361U (en) * | 2015-07-29 | 2016-02-03 | 佳承精工股份有限公司 | Needle injection Y type piecing devices are exempted from to malleation |
| CN205994799U (en) * | 2016-05-06 | 2017-03-08 | 善德生化科技股份有限公司 | Safety joint |
| CN209137574U (en) * | 2018-04-16 | 2019-07-23 | 嘉兴玖海医疗科技有限公司 | A kind of Needleless injection connector |
-
2018
- 2018-04-16 CN CN201810335956.5A patent/CN108434546A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061639Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| US20150102245A1 (en) * | 2013-10-16 | 2015-04-16 | Yi-Jin Promold Enterprise Ltd. | Connector against contrary flowing for medical treatment |
| CN203898862U (en) * | 2014-04-08 | 2014-10-29 | 联和医疗器材股份有限公司 | Needle-free injection positive-pressure connecting device |
| CN205007361U (en) * | 2015-07-29 | 2016-02-03 | 佳承精工股份有限公司 | Needle injection Y type piecing devices are exempted from to malleation |
| CN205994799U (en) * | 2016-05-06 | 2017-03-08 | 善德生化科技股份有限公司 | Safety joint |
| CN209137574U (en) * | 2018-04-16 | 2019-07-23 | 嘉兴玖海医疗科技有限公司 | A kind of Needleless injection connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114557886A (en) * | 2022-01-21 | 2022-05-31 | 宁波汉科医疗器械有限公司 | Needleless connector and medicine adding assembly |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180824 |
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| RJ01 | Rejection of invention patent application after publication |