CN204521992U - The way flow female Luer that positive pressure controls - Google Patents
The way flow female Luer that positive pressure controls Download PDFInfo
- Publication number
- CN204521992U CN204521992U CN201520129425.2U CN201520129425U CN204521992U CN 204521992 U CN204521992 U CN 204521992U CN 201520129425 U CN201520129425 U CN 201520129425U CN 204521992 U CN204521992 U CN 204521992U
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- CN
- China
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- female luer
- blind pipe
- way flow
- safety device
- inner chamber
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Abstract
The utility model discloses the way flow female Luer that a kind of positive pressure controls, comprise way flow safety device, the female Luer at way flow safety device and rear portion is tightly connected; Described way flow safety device comprises the outer wall be connected with female Luer, in outer wall, blind pipe is set, blind pipe periphery is way flow safety device inner chamber and female Luer inner chamber, the opening of blind pipe is medicinal liquid input port, the rear portion tube wall of blind pipe circumferentially arranges the through hole communicated with female Luer inner chamber, and the outer surface of tube wall before blind pipe end to through hole, in the left and right plane form connected with arc surface; In blind pipe rear end to through hole protheca dress spring-backed quill.This utility model is rational in infrastructure, effectively can prevent the generation of Superfusion medicinal liquid or backflow of blood problem, ensures that the positive pressure of infusion safety controls.
Description
Technical field
This utility model relates to a kind of female Luer.
Background technology
Along with the development of medical science, killer injecting pump is more and more general in clinical practice, and the use amount of killer injecting pump is also increasing.Because killer injecting pump is when installing incorrectly or break down, killer injecting pump is with regard to possibility transfusion speed out of hand or the function preventing backflow of blood.Diminish because a variety of causes there will be transfusion overpressure in infusion process, cause venous backflow to arrive in infusion pipeline.When draining blood is too much or overlong time, blood easily condenses in infusion pipeline, infusion pipeline is caused to block, transfusion liquid is not smooth, particularly killer injecting pump loses transfusion speed controlling functions, and killer injecting pump holds use higher than patient fluid infusion, just may cause the risk of excessive transfusion, cause patient to be discontented with, even dispute occurs.If find not in time, patient's Superfusion medicine and poisoning can be caused, even dead serious consequence.Even if find in time, also may produce the harmful effects such as medical tangle.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, effectively can prevent the generation of Superfusion medicinal liquid or backflow of blood problem, ensures the way flow female Luer that the positive pressure of infusion safety controls.
Technical solution of the present utility model is:
The way flow female Luer that positive pressure controls, it is characterized in that: comprise way flow safety device, the female Luer at way flow safety device and rear portion is tightly connected; Described way flow safety device comprises the outer wall be connected with female Luer, in outer wall, blind pipe is set, blind pipe periphery is way flow safety device inner chamber and female Luer inner chamber, the opening of blind pipe is medicinal liquid input port, the rear portion tube wall of blind pipe circumferentially arranges the through hole communicated with female Luer inner chamber, and the outer surface of tube wall before blind pipe end to through hole, in the left and right plane form connected with arc surface; In blind pipe rear end to through hole protheca dress spring-backed quill.
This utility model is rational in infrastructure, simple, outputs two symmetrical facets at non-return finger blind pipe outer wall end.Spring-backed quill, to the banding pressure of blind pipe outer wall, prolongs that to be parallel to blind hole axis direction minimum in the middle of the facet, as long as change faceted width, is just easy to change preset pressure, is convenient to the different use required.Way flow safety device can be connected to infusion pipeline end together with combining with female Luer, easy to use, guarantees safety again.
Non-return finger can be used for other infusion sets, as disposable transfusion device, effectively prevents backflow of blood and puts outward.The way flow female Luer that positive pressure controls is wherein exemplary embodiments, is applicable to disposable transfusion device completely, is specially adapted to the safeguard protection of killer injecting pump infuse medical fluid.When medicinal liquid is totally lost, female Luer front end is without medicinal liquid or have a small amount of medicinal liquid, and when its pressure reduction is not enough to strut spring-backed quill, fluid passage is blocked, and is full of liquid between female Luer inner chamber to syringe needle, can overcome venous pressure, stops blood back.Be exactly that medical worker spy hurries or inadvertent, patient is in sleep state again, and medicinal liquid is totally lost, and syringe needle fails to extract in time, also can not cause patient's venous hemorrhage.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the A-A profile of Fig. 1.
Detailed description of the invention
The way flow female Luer that positive pressure controls, comprise way flow safety device 1, the female Luer 3 at way flow safety device and rear portion is tightly connected; Described way flow safety device comprises the outer wall 7 be connected with female Luer, blind pipe 6 is set in outer wall, blind pipe periphery is way flow safety device inner chamber 8 and female Luer inner chamber 9, the opening 10 of blind pipe is medicinal liquid input port, the rear portion tube wall of blind pipe circumferentially arranges the through hole 5 communicated with female Luer inner chamber, and the outer surface of tube wall before blind pipe end to through hole, in left and right plane 4 form connected with arc surface; In blind pipe rear end to through hole protheca dress spring-backed quill 2; The position, through hole front end of blind pipe is ramped shaped, and spring-backed quill extends to position, slope.
Hydraulic pressure in the blind pipe of non-return finger is greater than the pressure in female Luer inner chamber, when its pressure reduction does not reach preset pressure, the outer wall of the blind pipe of way flow safety device is close to due to spring-backed quill, and covering left and right plane, medicinal liquid does not flow to the inner chamber of female Luer by through hole; When pressure reduction is greater than preset pressure, then medicinal liquid struts the spring-backed quill be close in left and right plane by through hole, flows to female Luer inner chamber, starts normal infuse medical fluid.Its preset pressure by changing the size of left and right plane 4, or selects the wall thickness (elasticity) of spring-backed quill 2, adjusts the size of preset pressure.Namely left and right plane 4 is wide, or spring-backed quill 2 wall is thin, and preset pressure is little; Otherwise left and right plane 4 is narrow, or spring-backed quill 2 wall thickness, then preset pressure is large.Preset pressure according to killer injecting pump infective use, can preset, and can realize the liquid medicine flow under Stress control, guarantees to hang up higher than patient fluid infusion's end at killer injecting pump, even if killer injecting pump is out of control, also ensureing can not Superfusion medicinal liquid.
When infusion set accidental, or killer injecting pump is out of control, transfusion overpressure is caused to diminish, when hydraulic pressure in non-return finger blind pipe 6 is less than or equal to the pressure in female Luer 3 inner chamber, the outer surface of the blind pipe 6 of way flow safety device 1 is close to due to spring-backed quill 2, and cover left and right plane 4, fluid passage is blocked, liquid can not from the inner chamber of female Luer 3, flow back in non-return finger blind pipe 6, thus achieve the one-way flow of medicinal liquid positive pressure control, effectively prevent backflow of blood.
Claims (1)
1. a way flow female Luer for positive pressure control, it is characterized in that: comprise way flow safety device, the female Luer at way flow safety device and rear portion is tightly connected; Described way flow safety device comprises the outer wall be connected with female Luer, in outer wall, blind pipe is set, blind pipe periphery is way flow safety device inner chamber and female Luer inner chamber, the opening of blind pipe is medicinal liquid input port, the rear portion tube wall of blind pipe circumferentially arranges the through hole communicated with female Luer inner chamber, and the outer surface of tube wall before blind pipe end to through hole, in the left and right plane form connected with arc surface; In blind pipe rear end to through hole protheca dress spring-backed quill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129425.2U CN204521992U (en) | 2015-03-06 | 2015-03-06 | The way flow female Luer that positive pressure controls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129425.2U CN204521992U (en) | 2015-03-06 | 2015-03-06 | The way flow female Luer that positive pressure controls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204521992U true CN204521992U (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520129425.2U Active CN204521992U (en) | 2015-03-06 | 2015-03-06 | The way flow female Luer that positive pressure controls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204521992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623796A (en) * | 2015-03-06 | 2015-05-20 | 爱普科学仪器（江苏）有限公司 | Forward pressure control unidirectional flow Luer connector |
-
2015
- 2015-03-06 CN CN201520129425.2U patent/CN204521992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623796A (en) * | 2015-03-06 | 2015-05-20 | 爱普科学仪器（江苏）有限公司 | Forward pressure control unidirectional flow Luer connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |