CN205007428U - Needle injection T type piecing devices are exempted from to malleation - Google Patents
Needle injection T type piecing devices are exempted from to malleation Download PDFInfo
- Publication number
- CN205007428U CN205007428U CN201520556678.8U CN201520556678U CN205007428U CN 205007428 U CN205007428 U CN 205007428U CN 201520556678 U CN201520556678 U CN 201520556678U CN 205007428 U CN205007428 U CN 205007428U
- Authority
- CN
- China
- Prior art keywords
- injection
- malleation
- transverse pipe
- connector device
- entrance
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (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 utility model provides a needle injection T type piecing devices are exempted from to malleation, manage and set up in elastic sealing member wherein including the T type, T type pipe has the needle -free injection interface part, the outer end of needle -free injection interface part has the syringe interface that the needle -free injection ware is matchd to essence, elastic sealing member has the pressure head of receiving, press the kinetoplast, and pressurized seat, receive the pressure head to have the driving fit portion of essence driving fit syringe interface, flowing space has between the surface of pressure kinetoplast and pressurized seat and the internal surface of T type pipe, make needleless injector when the syringe interface is pulled out when finishing the injection, elastic sealing member resumes to the script physique because of the physique elasticity that the pressurized takes place deformation, thereby it is poor to produce fluid volume during for the pressurized, the poor malleation that enters the mouth in the flow direction injection that forms liquid of fluid volume.
Description
Technical field
This utility model relates to one and exempts from pin injection T connector device, particularly relates to a kind of malleation and exempts from pin injection T connector device.
Background technology
In the process of infusion, often need to carry out long-term infusion or injection to sufferer.Generally speaking; in order to alleviate the misery of sufferer repeated localised puncture and reduce the workload of medical personnel; can venous detaining needle or inlying catheter be plugged on the health of sufferer; described venous detaining needle or described inlying catheter understand connecting tee joint usually, such as T connector (T-connector).Three ends of T connector are respectively a Needleless injection joint, a syringe needle joint and a transfusion cover joint, described Needleless injection joint in order to connect a needleless injector, medical personnel by described needleless injector by multiple transfusion or drug injection in patient.
In order to avoid remaining needle during injection or conduit cause plugging because of blood back or liquor residue, development in recent years goes out to utilize positive pressure connector to be connected with Needleless injection joint, there is provided malleation by described positive pressure connector, medicinal liquid is compared and can not remain in remaining needle or conduit and avoid the situation of blood back.
But existing positive pressure connector complex structure, considers from Financial cost, is the problem treating to solve in fact.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of malleation and exempts from pin injection T connector device, to simplify its structure.
The technological means that the problem that this utility model is solution prior art adopts is to provide a kind of malleation and exempts from pin injection T connector device, comprise: T-shaped pipe, there is two transverse pipe portions of mutual cross connection and vertical communication in the longitudinal pipe portion of the junction in described two transverse pipe portions, transverse pipe portion described at least one has limiting section and Needleless injection interface portion, the internal face of described limiting section in described transverse pipe portion extends to the ring heart in described transverse pipe portion thus is formed and cross entrance in injection, described Needleless injection interface portion is the syringe interface that the outer end portion in described transverse pipe portion has essence coupling needleless injector, and flexible sealing component, be arranged among described transverse pipe portion, described flexible sealing component sequentially conjointly has by pressure head, press body, and by 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 a notch part, described presses body and has the flowing space between the described outer surface by wedge and the inner surface in described transverse pipe portion, described has recess by wedge thus forms compression stroke, described recess is arranged at described limiting section thus covers entrance in described injection, and at the described fluid passage being formed with entrance in the flowing space described in being communicated with and described injection 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 by pressure head stands pressure of described flexible sealing component, and by the described inside retraction of pressurized by wedge, make described being subject to the syringe interface described in the disengaging of closely sealed portion of pressure head thus being formed with the outer entrance of injection, and be formed with spatial gap between the described outer surface by pressure head and the inner surface in described transverse pipe portion, the outer entrance of described injection, described spatial gap, the described flowing space, described fluid passage, and entrance is interconnected in described injection, to make the liquid in described needleless injector by the outer entrance of described injection, described spatial gap, the described flowing space, and described fluid passage flow to entrance in described injection, when described needleless injector is pulled out from described syringe interface, described flexible sealing component spring return is to script body, thus it is poor relative to producing liquid capacity during pressurized, described liquid capacity difference causes the malleation of entrance in the injection described in the flow direction to described liquid.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, the described semiglobe being formed as hollow by wedge system.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, the described external diameter pressing body is convergent on the direction of described syringe interface towards entrance in described injection.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, described press body and the described junction by wedge is formed with an angle being greater than 90 degree.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, the described inside pressing body is formed with hollow space, and described hollow space is communicated in described compression stroke.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, the inner ring surface 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 external diameter in described radially outer edge portion is greater than the internal diameter of described undergauge inner edge portion, makes described system of radially outer edge portion spacing by described undergauge inner edge portion.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, transverse pipe portion described in one comprises lid part and the pipe shaft part of socket mutually, described pipe shaft part is connected with the transverse pipe portion described in another and described longitudinal pipe portion, described Needleless injection interface portion is positioned at described lid part, and described limiting section is positioned at described pipe shaft part.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, described notch part is by the described breach formed by the one-sided position indent of pressure head.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, the described outer diameter face by wedge is provided with the radial several projecting ring sections protruded.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, transverse pipe portion described in one has described Needleless injection interface portion, transverse pipe portion described in another is as outlet tube portion, and described longitudinal pipe portion is as input pipe portion.
In an embodiment of the present utility model, provide a kind of malleation to exempt from pin injection T connector device, described notch part is curved.
Via the technological means that this utility model adopts, when injection complete extract needleless injector time, flexible sealing component energy spring return is to originally body and produce malleation, described malleation make the liquid in transverse pipe portion obtain in the past in injection entrance move on, avoid the situation of liquid residue and blood back.And flexible sealing component structure of the present utility model is simple, and then improve the benefit of Financial cost.
Accompanying drawing explanation
Fig. 1 is that display exempts from the plane graph of pin injection T connector device according to a malleation of an embodiment of the present utility model.
Fig. 2 is that display exempts from the sectional view of pin injection T connector device according to the malleation of embodiment of the present utility model.
Fig. 3 is that display exempts from pin injection T connector device schematic diagram in use according to the malleation of embodiment of the present utility model.
Fig. 4 is the limiting section of pin injection T connector device is exempted from display sectional view according to the malleation of embodiment of the present utility model.
Fig. 5 is that display exempts from pin injection T connector device sectional view in use according to the malleation of embodiment of the present utility model.
Fig. 6 is that display exempts from pin injection T connector device sectional view in use according to the malleation of embodiment of the present utility model.
Fig. 7 is the schematic diagram of display according to the flexible sealing component of another embodiment of the present utility model.
[symbol description]
100 malleations exempt from pin injection T connector device
1T type pipe
11,11 ' transverse pipe portion
111 Needleless injection interface portion
1111 syringe interfaces
1112 undergauge inner edge portion
112 pipe shaft parts
113 lid parts
114 limiting sections
115 supports
116 internal faces
Entrance in 117 injection
The outer entrance of 118 injection
12 longitudinal pipe 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
B transfusion cover
D1 external diameter
D2 internal diameter
I Needleless injection portion
N syringe needle
P fluid passage
S1 hollow space
The S2 flowing space
S3 compression stroke
S4 spatial gap
θ angle
Detailed description of the invention
Following according to Fig. 1 to Fig. 7, embodiment of the present utility model is described.Described 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 3, the malleation according to an embodiment of the present utility model exempts from pin injection T connector device 100, comprises T-shaped pipe 1 and flexible sealing component 2.
Specifically, T-shaped pipe 1 have mutual cross connection two transverse pipe portions 11,11 ' and vertical communication in the longitudinal pipe portion 12 of the junction in described two transverse pipe portions 11,11 '.As shown in Figure 3, in the present embodiment, the transverse pipe portion 11 described in has Needleless injection interface portion 111 with for connecting needleless injector I, the transverse pipe portion 11 ' described in another then as outlet tube portion, with for connecting needle N.12, described longitudinal pipe portion as input pipe portion, with for connecting transfusion cover B.Certainly, this utility model is not as limit.In other embodiments, two transverse pipe portions have Needleless injection interface portion all respectively, and for being injected into different liquid, longitudinal pipe portion is then as outlet tube portion.
As shown in Figure 1, 2, described transverse pipe portion 11 comprises pipe shaft part 112 and the lid part 113 of socket mutually.
Please simultaneously shown in composition graphs 2,4, described pipe shaft part 112 is connected with the transverse pipe portion 11 ' described in another and described longitudinal pipe portion 12.Described pipe shaft part 112 comprises limiting section 114 and support 115, and described limiting section 114 and described support 115 extend at the internal face 116 of the pipe shaft part 112 in described transverse pipe portion 11 to the ring heart of the pipe shaft part 112 in described transverse pipe portion 11 thus cross entrance 117 in injection.In the present embodiment, the quantity of described limiting section 114 is three, and is arranged at respectively on described support 115 with equidistant from distance each other.Certainly, this utility model is not as limit.In other embodiments, the quantity of described limiting section 114 can be different.
As shown in Figure 2,4, described Needleless injection interface portion 111 is arranged at described lid part 113.The outer end portion that described Needleless injection interface portion 111 is the lid part 113 in described transverse pipe portion 11 and the syringe interface 1111 of needleless injector I had described in essence coupling, in addition, the inner ring surface of described Needleless injection interface portion 111 protrudes out and is formed with undergauge inner edge portion 1112.
As shown in Figure 2, described flexible sealing component 2 is arranged among described transverse pipe portion 11, and described flexible sealing component 2 sequentially conjointly has by pressure head 21, presses body 22 and be subject to wedge 23.
Described has closely sealed portion 211 and notch part 212 by pressure head 21, and the closely sealed described syringe interface 1111 of described closely sealed portion 211 essence, specifically, the diameter in described closely sealed portion 211 is slightly larger than described syringe interface 1111.Described notch part 212 is for by the described breach formed by the one-sided position indent of pressure head 21.Specifically, in the present embodiment, described notch part 212 is curved, and the radian that described arc is formed makes described notch part 212 be easy to bending distortion, thus can reduce the described power needed for syringe interface 1111 described in needleless injector I insertion further.Certainly, this utility model is not limited so that described notch part 212 is curved.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.
Specifically, the described body 22 that presses has one and corresponds to the radially outer edge portion 221 of described undergauge inner edge portion 1112 and its inside is formed with hollow space S1.The outside diameter d 1 in described radially outer edge portion 221 is greater than the internal diameter d2 of described undergauge inner edge portion 1112, makes described radially outer edge portion 221 spacing by described undergauge inner edge portion 1112.Described presses body 22 and has flowing space S2 between the described outer surface by wedge 23 and the inner surface in described transverse pipe portion 11.The described semiglobe being formed as hollow by wedge 23, has recess 231 and several projecting ring section 232.Described recess 231 is formed with the compression stroke S3 being communicated in described hollow space S1, and be arranged at described limiting section 114 thus cover entrance 117 in described injection, and at the described fluid passage P being formed with entrance 117 in the flowing space S2 described in being communicated with and described injection by wedge 23 and the intersection of described limiting section 114.Described several projecting ring sections 232 are arranged on the described outer diameter face by wedge 23, described several projecting ring sections 232 protrude from the described outer diameter face by wedge 23 radial direction, in order to increase the described elastic-restoring force by wedge 23, and can when described needleless injector I extracts from described syringe interface 1111, make the resilience and recover body originally rapidly of described flexible sealing component 2.Certainly, this utility model is not formed with described several projecting ring sections 232 with the described outer diameter face by wedge 23 and is limited.As shown in Figure 7, the outer diameter face by wedge 23a of flexible sealing component 2a can be level and smooth and without projection, be convenient to manufacture to simplify processing procedure.
Preferably, in the present embodiment, be easy to toward the bending of described notch part 212 direction to make described flexible sealing component 2, the described external diameter pressing body 22 is convergent on the direction of described syringe interface 1111 towards entrance 117 in described injection, and the described body 22 that presses is formed with an angle theta being greater than 90 degree with the described junction by wedge 23.
As shown in Figure 5, when described needleless injector I inserts from described syringe interface 1111, being bent by described notch part 212 through pressurized by pressure head 21 of described flexible sealing component 2, and by the described inside retraction of pressurized by wedge 23, make the described closely sealed portion 211 by pressure head 21 depart from described syringe interface 1111 thus be formed with the outer entrance 118 of injection, and be formed with spatial gap S4 between the described outer surface by pressure head 21 and the inner surface in described transverse pipe portion 11, the outer entrance 118 of described injection, described spatial gap S4, described flowing space S2, described fluid passage P, and entrance 117 is interconnected in described injection, to make the liquid L in described needleless injector I by the outer entrance 118 of described injection, described spatial gap S4, described flowing space S2, and described fluid passage P thus flow to entrance 117 in described injection.
As shown in Figure 6, when described needleless injector I pulls out from described syringe interface 1111, described flexible sealing component 2 spring return is to script body, thus poor relative to producing liquid capacity during pressurized, described liquid capacity difference forms the malleation of entrance 117 in the injection described in flowing to described liquid L.
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, but these amendments must be for creation spirit of the present utility model and in interest field of the present utility model.
Claims (11)
1. malleation exempts from a pin injection T connector device, it is characterized in that, comprises:
T-shaped pipe, there is two transverse pipe portions of mutual cross connection and vertical communication in the longitudinal pipe portion of the junction in described two transverse pipe portions, transverse pipe portion described at least one has limiting section and Needleless injection interface portion, the internal face of described limiting section in described transverse pipe portion extends to the ring heart in described transverse pipe portion thus is formed and cross entrance in injection, and described Needleless injection interface portion is the outer end portion in described transverse pipe portion and has essence and mate the syringe interface of needleless injector; And
Flexible sealing component, be arranged among described transverse pipe portion, described flexible sealing component sequentially conjointly has by pressure head, press body, and by 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, described presses body and has the flowing space between the described outer surface by wedge and the inner surface in described transverse pipe portion, described has recess by wedge thus forms compression stroke, described recess is arranged at described limiting section thus covers entrance in described injection, and at the described fluid passage being formed with entrance in the flowing space described in being communicated with and described injection 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 by pressure head stands pressure of described flexible sealing component, and by the described inside retraction of pressurized by wedge, make described being subject to the syringe interface described in the disengaging of closely sealed portion of pressure head thus being formed with the outer entrance of injection, and be formed with spatial gap between the described outer surface by pressure head and the inner surface in described transverse pipe portion, the outer entrance of described injection, described spatial gap, the described flowing space, described fluid passage, and entrance is interconnected in described injection, to make the liquid in described needleless injector by the outer entrance of described injection, described spatial gap, the described flowing space, and described fluid passage flow to entrance in described injection,
When described needleless injector is pulled out from described syringe interface, described flexible sealing component spring return is to script body, thus poor relative to producing liquid capacity during pressurized, described liquid capacity difference forms the malleation of entrance in the injection described in flowing to described liquid.
2. malleation as claimed in claim 1 exempts from pin injection T connector 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 T connector device, it is characterized in that, the described external diameter pressing body is convergent on the direction of described syringe interface towards entrance in described injection.
4. malleation as claimed in claim 1 exempts from pin injection T connector 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 T connector device, and it is characterized in that, the described inside pressing body is formed with hollow space, and described hollow space is communicated in described compression stroke.
6. malleation as claimed in claim 1 exempts from pin injection T connector device, it is characterized in that, the inner ring surface 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 external diameter in described radially outer edge portion is greater than the internal diameter of described undergauge inner edge portion, makes described radially outer edge portion spacing by described undergauge inner edge portion.
7. malleation as claimed in claim 1 exempts from pin injection T connector device, it is characterized in that, transverse pipe portion described in one comprises lid part and the pipe shaft part of socket mutually, described pipe shaft part is connected with the transverse pipe portion described in another and described longitudinal 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 T connector 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 T connector device, and it is characterized in that, the described outer diameter face by wedge is provided with the radial several projecting ring sections protruded.
10. malleation as claimed in claim 1 exempts from pin injection T connector device, it is characterized in that, transverse pipe portion described in one has described Needleless injection interface portion, and the transverse pipe portion described in another is as outlet tube portion, and described longitudinal pipe portion is as input pipe portion.
11. malleations as claimed in claim 1 exempt from pin injection T connector device, and it is characterized in that, described notch part is curved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556678.8U CN205007428U (en) | 2015-07-29 | 2015-07-29 | Needle injection T type piecing devices are exempted from to malleation |
| PCT/CN2015/093822 WO2017016095A1 (en) | 2015-07-29 | 2015-11-05 | Positive pressure needle-free injection t-type connector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556678.8U CN205007428U (en) | 2015-07-29 | 2015-07-29 | Needle injection T type piecing devices are exempted from to malleation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205007428U true CN205007428U (en) | 2016-02-03 |
Family
ID=55206058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520556678.8U Expired - Fee Related CN205007428U (en) | 2015-07-29 | 2015-07-29 | Needle injection T type piecing devices are exempted from to malleation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205007428U (en) |
| WO (1) | WO2017016095A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106668976A (en) * | 2016-12-28 | 2017-05-17 | 天津哈娜好医材有限公司 | Positive pressure joint for medical infusion and using method thereof |
| CN109498890A (en) * | 2018-12-18 | 2019-03-22 | 山东新华安得医疗用品有限公司 | Positive pressure feather valve and no-needle transfusion connector |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202751639U (en) * | 2012-06-08 | 2013-02-27 | 苏州林华医疗器械有限公司 | Positive-pressure and pin-free connection piece |
| US8708976B1 (en) * | 2013-03-14 | 2014-04-29 | Carefusion 303, Inc. | Needleless connector with a tortuous fluid flow path |
| CN103751878B (en) * | 2014-01-27 | 2016-03-16 | 王亚娟 | Positive pressure needle-free connector |
| 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 |
| CN204181960U (en) * | 2014-10-24 | 2015-03-04 | 北京天地和协科技有限公司 | A kind of remaining needle |
-
2015
- 2015-07-29 CN CN201520556678.8U patent/CN205007428U/en not_active Expired - Fee Related
- 2015-11-05 WO PCT/CN2015/093822 patent/WO2017016095A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106668976A (en) * | 2016-12-28 | 2017-05-17 | 天津哈娜好医材有限公司 | Positive pressure joint for medical infusion and using method thereof |
| CN109498890A (en) * | 2018-12-18 | 2019-03-22 | 山东新华安得医疗用品有限公司 | Positive pressure feather valve and no-needle transfusion connector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017016095A1 (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 |
Granted publication date: 20160203 Termination date: 20180729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |