CN205007361U - Needle injection Y type piecing devices are exempted from to malleation - Google Patents
Needle injection Y type piecing devices are exempted from to malleation Download PDFInfo
- Publication number
- CN205007361U CN205007361U CN201520558133.0U CN201520558133U CN205007361U CN 205007361 U CN205007361 U CN 205007361U CN 201520558133 U CN201520558133 U CN 201520558133U CN 205007361 U CN205007361 U CN 205007361U
- Authority
- CN
- China
- Prior art keywords
- injection
- malleation
- syringe
- joint device
- interface
- 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 - Fee Related
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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
Abstract
The utility model provides a needle injection Y type piecing devices are exempted from to malleation, including Y type pipe and elastic sealing member, this Y type pipe has spacing portion and needle -free injection interface part, this needle -free injection interface part has the syringe interface that the needle -free injection ware is matchd to essence, this elastic sealing member sets up among this injection syringe portion, and has the pressure head of receiving according to the preface continuously, press kinetoplast and pressurized seat, should receive the pressure head to have driving fit portion, this this syringe interface of driving fit portion essence driving fit, the side that should receive the pressure head is formed with breach portion, a flowing space has between the surface of this pressure kinetoplast and the internal surface of this injection syringe portion, when pulling out needleless injector, produce a malleation through this elastic sealing member because of warping produced resilience force, make injection infusion or blood be difficult for the backward flow, use and avoid keeping somewhere the problem that the needle takes place the jam.
Description
Technical field
This utility model relates to a kind of breeches joint device, and particularly a kind of malleation exempts from pin injection breeches joint device.
Background technology
When carrying out intravenous injection and transfusion to patient, (its transfusion may be blood, normal saline solution, medicine, nutrient ... Deng), the mode of pressurizeing with manpower except using syringe and use other special equipment carry out pressurizeing (pumping pressurization) mode except, generally all transfusion bag is hung on eminence position, makes transfusion that gravity can be utilized via conduit, remaining needle and the intravenous entered in human body.Between conduit and remaining needle, usually with the use of breeches joint device, the composition increased or change is infused can be conducive to.
But, when injection completes and extracted by syringe, the pressure in conduit and remaining needle can be caused to change, and easily cause the situation of transfusion and venous backflow to occur.Transfusion and venous backflow easily cause fear and the scaring of patient, or even can cause the situation occurring in remaining needle to block.Once the situation of blocking occurs remaining needle, it must being made unimpeded carrying out manual cleaning, then again subcutaneous puncture being carried out to patient again, not only misery being caused to sufferer thus, too increasing the workload of medical expense and nursing staff.
Utility model content
Therefore, namely the purpose of this utility model is providing a kind of malleation to exempt from pin injection cap, in order to prevent transfusion and blood backflow when utilizing gravity to carry out intravenous injection, to avoid the problem that remaining needle blocking occurs.
The technological means that this utility model adopts for the problem solving prior art exempts from pin injection breeches joint device for providing a kind of malleation, comprise: a Y-piece, there is the input pipe portion interconnected, one syringe portion and an outlet tube portion, this syringe portion has limiting section and Needleless injection interface portion, the internal face that this limiting section lies in this syringe portion extends to the ring heart in this syringe portion and is formed and cross injection entrance, this Needleless injection interface portion system position in the subtend of the injection entrance in this syringe portion and have essence coupling needleless injector syringe interface, and flexible sealing component, be arranged among this syringe portion, this flexible sealing component sequentially conjointly has by pressure head, press body and be subject to wedge, closely sealed portion should be had by pressure head, this system of closely sealed portion essence this syringe interface closely sealed, notch part should be formed with by the side of pressure head, this presses between the outer surface of body and the inner surface in this syringe portion has a flowing space, a compression stroke should be formed by wedge has recess, this recess is arranged at this limiting section and covers this injection entrance, and be formed with the intersection of this limiting section the fluid passage being communicated with this flowing space and this injection entrance by wedge at this, wherein when this needleless injector is inserted from this syringe interface, being bent by this notch part through pressurized by pressure head system of this flexible sealing component, and by this inwardly retraction by the pressurized of wedge, make this closely sealed portion by pressure head depart from this syringe interface and a spatial gap should be formed with by between the outer surface of pressure head and the inner surface in this syringe portion, to make this syringe interface by this spatial gap, this flowing space and this fluid passage and be communicated to this injection entrance, when this needleless injector is pulled out from this syringe interface, this flexible sealing component elastic returning is to script body, and it is poor relative to producing liquid capacity during pressurized, this liquid capacity difference system causes to this liquid the malleation flowing to this injection entrance.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, the semiglobe of hollow should be formed as by wedge.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, this external diameter pressing body is convergent in this syringe interface on the direction of this injection entrance.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, this presses body and should be formed with by the junction of wedge the angle being greater than 90 degree.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, this inside pressing body is formed with a hollow space, and this hollow space is communicated in this compression stroke.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, the inner ring surface of this Needleless injection interface portion protrudes out and is formed with undergauge inner edge portion, and this presses body and has radially outer edge portion corresponding to this undergauge inner edge portion, the internal diameter of this undergauge inner edge portion is less than the external diameter in this radially outer edge portion, makes this radially outer edge portion be subject to the spacing of this undergauge inner edge portion.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, this syringe portion comprises lid part and the pipe shaft part of socket mutually, this pipe shaft part is connected with this outlet tube portion and this input pipe portion, this Needleless injection interface portion is positioned at this lid part, and this limiting section is positioned at this pipe shaft part.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, the breach of this notch part for being formed by the one-sided position indent of pressure head by this.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, this Y-piece comprises straight tube and tipping tube, this tipping tube is connected in this straight tube obliquely, and this syringe portion and this outlet tube portion form this straight tube, and this input pipe portion is as this tipping tube.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, the outer diameter face of wedge should be provided with the radial a plurality of projecting ring sections protruded.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection breeches joint device, this notch part system is curved.
Malleation of the present utility model is exempted from pin injection breeches joint device and is had following effect.By the structural design of this flexible sealing component and this Y-piece, when this needleless injector is extracted from this syringe interface, this flexible sealing component resilience can return back to original shape rapidly, and make the volume in this Y-piece diminish due to the deformation of this flexible sealing component, and the effect of malleation can be produced, strengthen the strength that remaining needle is pushed in transfusion to by this, make transfusion can not remain in remaining needle, and venous blood is not easily refluxed, thus avoid remaining needle that the problem of blocking occurs.
Accompanying drawing explanation
Fig. 1 is the front view of exempting from pin injection breeches joint device according to the malleation of an embodiment of the present utility model.
Fig. 2 is the sectional view of exempting from pin injection breeches joint device according to the malleation of this embodiment of the present utility model.
Fig. 3 exempts from according to the malleation of this embodiment of the present utility model the sectional view that pin injection breeches joint is installed on another visual angle.
Fig. 4 exempts from pin injection breeches joint according to the malleation of this embodiment of the present utility model to be installed on the schematic diagram injected when inserting.
Fig. 5 exempts from pin injection breeches joint according to the malleation of this embodiment of the present utility model to be installed on schematic diagram when syringe is extracted.
Fig. 6 is the schematic diagram of exempting from when pin injection breeches joint is installed on use according to the malleation of this embodiment of the present utility model.
Fig. 7 is the schematic diagram of the flexible sealing component according to another embodiment of the present utility model.
100 malleations exempt from pin injection breeches joint device
1Y type pipe
11 input pipe portions
12 syringe portions
121 pipe shaft parts
122 lid parts
123 limiting sections
124 injection entrances
125 Needleless injection interface portion
126 syringe interfaces
127 projections
128 undergauge inner edge portion
13 outlet tube portions
2,2a flexible sealing component
21 by pressure head
211 closely sealed portions
212,212a notch part
22 press body
221 radially outer edge portions
23,23a is by wedge
231 recesses
232 projecting ring sections
300 bodys
400 organisms
500 remaining needles
I needleless injector
L infuses
P fluid passage
The S flowing space
S1 compression stroke
S2 hollow space
θ angle
Detailed description of the invention
Following according to Fig. 1 to Fig. 7, and embodiment of the present utility model is described.This explanation is not restriction embodiment of the present utility model, and is the one of embodiment of the present utility model.
As shown in Figures 1 to 4, the malleation according to an embodiment of the present utility model exempts from pin injection breeches joint device 100, comprises: Y-piece 1 and flexible sealing component 2.
This Y-piece 1 have interconnect input pipe portion 11, syringe portion 12 and outlet tube portion 13.This Y-piece 1 comprises straight tube and is connected in the tipping tube of this straight tube obliquely, and this syringe portion 12 forms this straight tube with this outlet tube portion 13, and this input pipe portion 11 is as this tipping tube.This syringe portion 12 comprises pipe shaft part 121 and the lid part 122 of socket mutually.This pipe shaft part 121 is connected with this input pipe portion 11 and this outlet tube portion 13.This pipe shaft part 121 has limiting section 123.This limiting section 123 extends in the internal face of this pipe shaft part 121 to the ring heart (i.e. the center of this pipe shaft part 121) of this pipe shaft part 121 and is formed, and crosses injection entrance 124.This lid part 122 has Needleless injection interface portion 125, this Needleless injection interface portion 125 is positioned at the subtend of the injection entrance 124 in this syringe portion 12, and this Needleless injection interface portion 125 has the syringe interface 126 of essence coupling needleless injector I (as Fig. 5).
This flexible sealing component 2 is arranged among this syringe portion 12.This flexible sealing component 2 sequentially conjointly has by pressure head 21, presses body 22 and be subject to wedge 23.Closely sealed portion 211 (as Fig. 4) should be had, this closely sealed portion 211 essence this syringe interface 126 (as Fig. 2) closely sealed by pressure head 21.Specifically, the diameter in this closely sealed portion 211 is slightly larger than this syringe interface 126.Notch part 212 should be formed with by the side of pressure head 21.Specifically, the breach of this notch part 212 for being formed by the one-sided position indent of pressure head 21 by this.Specifically, in the present embodiment, this notch part 212 is curved, and the radian that this arc is formed makes this notch part 212 be easy to bending distortion, and can reduce this needleless injector I further and insert this power needed for syringe interface 1111.Certainly, with this, notch part 212 is not curved is limited for this utility model.As shown in Figure 7, the notch part 212a of flexible sealing component 2a is V-shaped haply, to be applicable to other behaviour in service.This presses between the outer surface of body 22 and the inner surface of this pipe shaft part 121 has flowing space S.The semiglobe of hollow should be formed as by wedge 23.Should recess 231 be had by wedge 23 and formed compression stroke S1.This recess 231 is arranged at this limiting section 123 and covers this injection entrance 124, and is formed with at this fluid passage P being communicated with this flowing space S and this injection entrance 124 by wedge 23 and the intersection of this limiting section 123.In the present embodiment, a plurality of projecting ring section 232 should be protruding with by the outer diameter face radial direction of wedge 23, this a plurality of projecting ring section 232 is in order to increase the elastic-restoring force that this is subject to wedge 23, and can when this needleless injector I extracts from this syringe interface 126, make the resilience and recover body originally rapidly of this flexible sealing component 2.Certainly, this utility model is not to be formed with should being limited by wedge 23 of this plurality of projecting ring section 232.As shown in Figure 7, the outer diameter face by wedge 23a of flexible sealing component 2a can in level and smooth and without projection, to manufacture.
Preferably, this inside pressing body 22 is formed with hollow space S2, and this hollow space S2 is communicated in this compression stroke S1.
As shown in Figures 2 and 3, in the present embodiment, this limiting section 123 is provided with the projection 127 of the spaced arrangement of two or more, and forms this fluid passage P between these every two adjacent projections 127.Should by wedge 23 bearing in this plurality of bump 127.This fluid passage P and this flowing space S system keep by this plurality of bump 127 being communicated with.Certainly, this utility model is not as limit.This fluid passage P also can be the passage being arranged at this limiting section 123.
When reality uses, refer to shown in Fig. 4 to Fig. 6, this malleation exempts from the remaining needle 500 of pin injection breeches joint device 100 for being communicated in the blood vessel (such as hand vein) being inserted in organism 400 by being connected to body 300.
As shown in Figure 4, when this needleless injector I inserts from this syringe interface 126, this flexible sealing component 2 makes this be subject to the closely sealed portion 211 of pressure head 21 to depart from this syringe interface 126 by the extruding of this needleless injector I and should be formed with spatial gap by between the outer surface of pressure head and the inner surface in this syringe portion, use and make this syringe interface 126 be communicated to this injection entrance 124 by this spatial gap, this flowing space S and this fluid passage P, be conducive to injecting.Now, because this flexible sealing component 2 is subject to the extruding of this needleless injector I, should be bent by this notch part 212 by pressure head 21, and this presses body 22 and this compression stroke S1 and this hollow space S2 should be reduced by wedge 23 produces distortion, and now therefore this flowing space S also becomes large.As shown in Figure 5, when this needleless injector I extracts from this syringe interface 126, this flexible sealing component 2 resilience and the body that recovers originally, this compression stroke S1 and this hollow space S2 is made to recover size originally, and this flowing space S is diminished, and it is poor relative to producing liquid capacity during pressurized, this liquid capacity difference causes to this liquid the malleation that flows to this injection entrance 124 and then produces malleation in this flowing space S, the transfusion L in this flowing space S is made to enter this outlet tube portion 13 to remaining needle 3 via this injection entrance 124 for being subject to malleation propelling and being injected in organism 3.
In the present embodiment, the inner ring surface of this Needleless injection interface portion 125 protrudes out and is formed with undergauge inner edge portion 128, and this presses body 22 and has radially outer edge portion 221 corresponding to this undergauge inner edge portion 128, the internal diameter of this undergauge inner edge portion 128 is less than the external diameter in this radially outer edge portion 221, makes this radially outer edge portion 221 be subject to the spacing of this undergauge inner edge portion 128.Certainly, this utility model is not as limit.Radially outer edge portion also can be arranged at by pressure head, and undergauge inner edge portion 128 is arranged for corresponding radially outer edge portion, to be limited among this syringe portion 12 by this flexible sealing component.
As shown in Figure 2, malleation according to this embodiment of the present utility model exempts from pin injection breeches joint device 100, this external diameter pressing body 22 is convergent in this syringe interface 126 on the direction of this injection entrance 124, to reduce the resistance that this flexible sealing component 2 produces distortion when the pressurized.
As shown in Figure 2, the malleation according to this embodiment of the present utility model exempts from pin injection breeches joint device 100, and this presses body 22 and should be formed with by the junction of wedge 23 angle theta being greater than 90 degree.
Above describes and the explanation being only preferred embodiment of the present utility model is described, for those skilled in the art when can do other amendment according to following defined claim and above-mentioned explanation, as long as these amendments must be utility model spirit of the present utility model and in interest field of the present utility model.
Claims (11)
1. malleation exempts from a pin injection breeches joint device, it is characterized in that, comprises:
Y-piece, have interconnect input pipe portion, syringe portion and outlet tube portion, described syringe portion has limiting section and Needleless injection interface portion, the internal face of described limiting section in described syringe portion extends to the ring heart in described syringe portion and is formed and cross injection entrance, and described Needleless injection interface portion is positioned at the subtend of the injection entrance in described syringe portion and has essence and mate the syringe interface of needleless injector; And
Flexible sealing component, be arranged among described syringe portion, described flexible sealing component sequentially conjointly has by pressure head, press body and be subject to wedge, described has closely sealed portion by pressure head, the closely sealed described syringe interface of described closely sealed portion essence, the described side by pressure head is formed with notch part, between the inner surface in the described outer surface pressing body and described syringe portion, there is a flowing space, described forms compression stroke by wedge has recess, described recess is arranged at described limiting section and covers described injection entrance, and at the described fluid passage being formed with the flowing space described in being communicated with and described injection entrance by wedge and the intersection of described limiting section,
Wherein when described needleless injector is inserted from described syringe interface, being bent by described notch part through pressurized by pressure head system of described flexible sealing component, and the inwardly retraction by the described pressurized by wedge, make described being subject to the syringe interface described in the disengaging of closely sealed portion of pressure head and being formed with a spatial gap between the described outer surface by pressure head and the inner surface in described syringe portion, to make described syringe interface by described spatial gap, the described flowing space and described fluid passage and be communicated to described injection entrance,
When described needleless injector is pulled out from described syringe interface, described flexible sealing component elastic returning is to script body, and poor relative to producing liquid capacity during pressurized, described liquid capacity difference is for causing a malleation of the injection entrance described in the flow direction to described liquid.
2. malleation as claimed in claim 1 exempts from pin injection breeches joint device, it is characterized in that, the described semiglobe being formed as hollow by wedge.
3. malleation as claimed in claim 1 exempts from pin injection breeches joint device, it is characterized in that, the described external diameter pressing body is convergent in described syringe interface on the direction of described injection entrance.
4. malleation as claimed in claim 1 exempts from pin injection breeches joint device, it is characterized in that, described presses body and the described junction by wedge is formed with an angle being greater than 90 degree.
5. malleation as claimed in claim 1 exempts from pin injection breeches joint device, and it is characterized in that, the described inside pressing body is formed with a hollow space, and described hollow space is communicated in described compression stroke.
6. malleation as claimed in claim 1 exempts from pin injection breeches joint device, it is characterized in that, the inner ring surface system of described Needleless injection interface portion protrudes out and is formed with undergauge inner edge portion, and the described body that presses has radially outer edge portion corresponding to described undergauge inner edge portion, the internal diameter of described undergauge inner edge portion is less than the external diameter in described radially outer edge portion, makes described radially outer edge portion be subject to the spacing of described undergauge inner edge portion.
7. malleation as claimed in claim 1 exempts from pin injection breeches joint device, it is characterized in that, described syringe portion comprises lid part and the pipe shaft part of socket mutually, described pipe shaft part is connected with described outlet tube portion and described input pipe portion, described Needleless injection interface portion is positioned at described lid part, and described limiting section is positioned at described pipe shaft part.
8. malleation as claimed in claim 1 exempts from pin injection breeches joint device, it is characterized in that, described notch part is for by the described breach formed by the one-sided position indent of pressure head.
9. malleation as claimed in claim 1 exempts from pin injection breeches joint device, it is characterized in that, described Y-piece comprises straight tube and tipping tube, described tipping tube is connected in described straight tube obliquely, straight tube described in described syringe portion and described outlet tube portion are formed, described input pipe portion is as described tipping tube.
10. malleation as claimed in claim 1 exempts from pin injection breeches joint device, and it is characterized in that, the described outer diameter face by wedge is provided with the radial a plurality of projecting ring sections protruded.
11. malleations as claimed in claim 1 exempt from pin injection breeches joint device, and it is characterized in that, described notch part is curved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558133.0U CN205007361U (en) | 2015-07-29 | 2015-07-29 | Needle injection Y type piecing devices are exempted from to malleation |
| PCT/CN2015/093819 WO2017016092A1 (en) | 2015-07-29 | 2015-11-05 | Positive pressure needle-free injection y-type connector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558133.0U CN205007361U (en) | 2015-07-29 | 2015-07-29 | Needle injection Y type piecing devices are exempted from to malleation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205007361U true CN205007361U (en) | 2016-02-03 |
Family
ID=55205992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520558133.0U Expired - Fee Related CN205007361U (en) | 2015-07-29 | 2015-07-29 | Needle injection Y type piecing devices are exempted from to malleation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205007361U (en) |
| WO (1) | WO2017016092A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108434546A (en) * | 2018-04-16 | 2018-08-24 | 嘉兴玖海医疗科技有限公司 | A kind of Needleless injection connector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115177855B (en) * | 2022-06-24 | 2024-02-27 | 苏州林华医疗器械股份有限公司 | Non-rebound double-end needleless connector |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW482001U (en) * | 2001-07-17 | 2002-04-01 | Ming-Shiung Tsai | Improved medicine-addition tube for injection duct |
| CN2749508Y (en) * | 2004-11-05 | 2006-01-04 | 蔡铭雄 | Drug adding mechanism of infusion or retention arrangement |
| US8636720B2 (en) * | 2009-11-16 | 2014-01-28 | Carefusion 303, Inc. | Needleless access connectors and valve elements therefor |
| CN101879339B (en) * | 2010-07-12 | 2011-10-12 | 上海康德莱企业发展集团医疗器械有限公司 | Needleless dosing positive pressure connector |
| US9017295B2 (en) * | 2010-09-02 | 2015-04-28 | Skill Partner Limited | Syringe adapter with a ball-typed valve |
| CN202069931U (en) * | 2011-04-19 | 2011-12-14 | 联和医疗器材股份有限公司 | Needle-free infusion 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 |
-
2015
- 2015-07-29 CN CN201520558133.0U patent/CN205007361U/en not_active Expired - Fee Related
- 2015-11-05 WO PCT/CN2015/093819 patent/WO2017016092A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108434546A (en) * | 2018-04-16 | 2018-08-24 | 嘉兴玖海医疗科技有限公司 | A kind of Needleless injection connector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017016092A1 (en) | 2017-02-02 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180729 |