CN203342121U - Positive pressure connector - Google Patents
Positive pressure connector Download PDFInfo
- Publication number
- CN203342121U CN203342121U CN 201320292179 CN201320292179U CN203342121U CN 203342121 U CN203342121 U CN 203342121U CN 201320292179 CN201320292179 CN 201320292179 CN 201320292179 U CN201320292179 U CN 201320292179U CN 203342121 U CN203342121 U CN 203342121U
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- CN
- China
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- elastomer
- inner chamber
- epimere
- elastic body
- inner cavity
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a positive pressure connector which comprises a cap and a connector body. A connecting port is formed in a lower section of the connector body, and an upper section of the connector body is of a hollow cylinder structure with an inner cavity. The cap is provided with an inner cavity, and the inner cavity of the cap is divided into an upper section, a middle section and a lower section, wherein the diameters of the upper section, the middle section and the lower section are increased in sequence. The upper section of the connector body is sleeved with the lower section of the cap, and a transition inclined face is arranged between the upper section and the middle section of the inner cavity of the cap. The positive pressure connector further comprises an elastic body. The elastic body is a hollow rotating body with an inner cavity, the outer surface of the elastic body is provided with a protruding portion, the largest diameter of the protruding portion is smaller than the smallest diameter of the transition inclined face, and the protruding portion is blocked by the transition inclined face. An upper section of the elastic body is located in the inner cavity of the cap, a lower section of the elastic body is located in the inner cavity of the upper section of the connector body, the outer diameter of the top end of the elastic body is larger than the inner diameter of the upper section of the inner cavity of the cap, the bottom of the elastic body is communicated with the connecting port, a liquid through hole is formed in the center of the top end of the elastic body, and the top end of the elastic body is of a silica gel structure. The positive pressure connector can prevent blood backflow in infusion and achieve medicine feeding without needles.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically, relates to a kind of positive pressure connector, can produce malleation in transfusion, prevent blood backflow, really realizes Needleless dosing.
Background technology
When the patient needs at short notice repeatedly to infuse and injects, usually can use remaining needle, along with improving constantly of nursing technique, the continuous renewal of medical supplies, remaining needle has been safest Centesis instrument by world health organisation recommendations.It is easy and simple to handle, can reduce repeated localised puncture, protects blood vessel and alleviate patient's misery, facilitates clinical application and emergency rescue, has alleviated the nurse job amount, now has been widely used in clinical.Generally can adopt the joint of tube for transfusion or syringe to be connected with remaining needle, but, when transfusion or when injecting the complete joint by tube for transfusion or syringe and extracting, due to the effect of negative pressure, blood can be back in remaining needle, immobilising blood can solidify the formation thrombosis, make transfusion next time and injection to carry out, like this, both increased nursing work load and consumptive material, also increase the probability of phlebitic incidence rate and nursing staff's accidental needle sticks wound, also increased the misery of sufferer.
Therefore, need a kind of positive pressure connector of design, in can infusing, injecting, produce malleation, prevent blood backflow.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to the reality needs, and a kind of positive pressure connector is provided.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of positive pressure connector, comprise block and joint body, described joint body hypomere is provided with an interface, epimere is the hollow columnar structures with inner chamber, described block is provided with inner chamber, described block inner chamber is divided into the epimere that diameter increases successively, stage casing and hypomere, described block hypomere is sleeved on the outside of described joint body epimere, be provided with the transition inclined-plane between the epimere of described block inner chamber and stage casing, also comprise elastomer, described elastomer is the hollow rotating body with inner chamber, described elastomeric outer surface is provided with protuberance, the maximum gauge of described protuberance is less than the minimum diameter on described transition inclined-plane and is blocked by described transition inclined-plane, described elastomeric epimere is positioned at the inner chamber of described block, hypomere is positioned at the inner chamber of described joint body epimere, described elastomeric top external diameter is greater than the epimere internal diameter of described block inner chamber, described elastomeric bottom is communicated with described interface, described elastomeric top central authorities are provided with liquid through-hole, described elastomeric top is silica gel structure.
Described elastomer is the silica gel elastomer.
Described elastomeric sidewall longitudinal section is wave structure.
The beneficial effects of the utility model are:
1. can produce malleation in transfusion, prevent blood backflow, really realize Needleless dosing;
2. silica gel elastomer of the present utility model has replaced the structure of metal elastic gonosome in the prior art, and patient can be CT and need not take off with this positive pressure connector, has reduced patient's misery.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Embodiment: referring to Fig. 1.
A kind of positive pressure connector, comprise block 1 and joint body 2, described joint body 2 hypomeres are provided with an interface 3, epimere is the hollow columnar structures with inner chamber, described block 1 is provided with inner chamber, described block 1 inner chamber is divided into the epimere 5 that diameter increases successively, stage casing 6 and hypomere 7, described block hypomere 7 is sleeved on the outside of described joint body 2 epimeres, be provided with transition inclined-plane 9 between the epimere 5 of described block 1 inner chamber and stage casing 7, also comprise elastomer 8, described elastomer 8 is the hollow rotating body with inner chamber, the outer surface of described elastomer 8 is provided with protuberance 10, the maximum gauge of described protuberance 10 is less than the minimum diameter on described transition inclined-plane 9 and is blocked by described transition inclined-plane 9, the epimere of described elastomer 8 is positioned at the inner chamber of described block 1, hypomere is positioned at the inner chamber of described joint body 2 epimeres, top 12 external diameters of described elastomer 8 are greater than epimere 5 internal diameters of described block 1 inner chamber, the bottom of described elastomer 8 is communicated with described interface 3, top 12 central authorities of described elastomer 8 are provided with liquid through-hole 11, the top 12 of described elastomer 8 is silica gel structure.
Use principle of the present utility model is summarized as follows:
While not using, elastomer 8 is naturalness, the material on the top 12 of elastomer 8 is silica gel, top 12 external diameters of elastomer 8 are greater than epimere 5 internal diameters of described block 1 inner chamber, colloidal silica is extruded liquid through-hole 11 shutoff, when transfusion, upper end connects tube for transfusion or syringe etc., the female Luer of tube for transfusion or syringe is pushed elastomer 8, elastomer 8 is compressed and produces distortion, the cavity volume of elastomer 8 increases, at this moment top 12 produces deformation, middle liquid through-hole 11 is opened, liquid passes through liquid through-hole 11 from tube for transfusion successively, the inner chamber of elastomer 8, interface 3 flows into transfusion needle, after transfusion finishes, female Luer is extracted, elastomer 8 returns to original state, liquid through-hole 11 is closed, and simultaneously, the cavity volume of elastomer 8 is dwindled, produce malleation liquid remaining in its inner chamber is continued to advance, avoid blood backflow, prevent from forming thrombosis.
Because the outer surface of elastomer 8 is provided with protuberance 10, described protuberance 10 is positioned at 9 belows, described transition inclined-plane and is blocked by described transition inclined-plane 9, prevents that elastomer 8 from coming off from 1 top of blocking a shot.
As preferred embodiment a kind of, described elastomer 8 is the silica gel elastomer, and silica gel structure has replaced the structure of metal elastic gonosome in the prior art, and patient can be CT and need not take off with this positive pressure connector, has reduced patient's misery.
As another preferred embodiment, the sidewall longitudinal section of described elastomer 8 is wave structure, this structure, and the elastomer 8 that is is easily compressed, and easily resets.
What embodiment of the present utility model announced is preferred embodiment; but be not limited to this; those of ordinary skill in the art; very easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and variation, but only otherwise break away from spirit of the present utility model, all in protection domain of the present utility model.
Claims (3)
1. a positive pressure connector, comprise block (1) and joint body (2), described joint body (2) hypomere is provided with an interface (3), epimere is the hollow columnar structures with inner chamber, described block (1) is provided with inner chamber, described block (1) inner chamber is divided into the epimere (5) that diameter increases successively, stage casing (6) and hypomere (7), described block hypomere (7) is sleeved on the outside of described joint body (2) epimere, be provided with transition inclined-plane (9) between the epimere (5) of described block (1) inner chamber and stage casing (7), also comprise elastomer (8), described elastomer (8) is the hollow rotating body with inner chamber, the outer surface of described elastomer (8) is provided with protuberance (10), the maximum gauge of described protuberance (10) is less than the minimum diameter on described transition inclined-plane (9) and is blocked by described transition inclined-plane (9), the epimere of described elastomer (8) is positioned at the inner chamber of described block (1), hypomere is positioned at the inner chamber of described joint body (2) epimere, top (12) external diameter of described elastomer (8) is greater than epimere (5) internal diameter of described block (1) inner chamber, the bottom of described elastomer (8) is communicated with described interface (3), top (12) central authorities of described elastomer (8) are provided with liquid through-hole (11), the top (12) of described elastomer (8) is silica gel structure.
2. a kind of positive pressure connector according to claim 1, it is characterized in that: described elastomer (8) is the silica gel elastomer.
3. a kind of positive pressure connector according to claim 1, it is characterized in that: the sidewall longitudinal section of described elastomer (8) is wave structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320292179 CN203342121U (en) | 2013-05-27 | 2013-05-27 | Positive pressure connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320292179 CN203342121U (en) | 2013-05-27 | 2013-05-27 | Positive pressure connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203342121U true CN203342121U (en) | 2013-12-18 |
Family
ID=49742066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320292179 Expired - Fee Related CN203342121U (en) | 2013-05-27 | 2013-05-27 | Positive pressure connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203342121U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751878A (en) * | 2014-01-27 | 2014-04-30 | 王亚娟 | Positive-pressure and non-needle connecting piece |
| CN105771029A (en) * | 2016-04-29 | 2016-07-20 | 光玲 | Anti-reflux positive pressure device |
| CN105963824A (en) * | 2016-06-28 | 2016-09-28 | 李卫林 | Rotary type needle-free connector keeping positive pressure constantly |
-
2013
- 2013-05-27 CN CN 201320292179 patent/CN203342121U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751878A (en) * | 2014-01-27 | 2014-04-30 | 王亚娟 | Positive-pressure and non-needle connecting piece |
| CN103751878B (en) * | 2014-01-27 | 2016-03-16 | 王亚娟 | Positive pressure needle-free connector |
| CN105771029A (en) * | 2016-04-29 | 2016-07-20 | 光玲 | Anti-reflux positive pressure device |
| CN105963824A (en) * | 2016-06-28 | 2016-09-28 | 李卫林 | Rotary type needle-free connector keeping positive pressure constantly |
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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: 20131218 Termination date: 20200527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |