CN201510611U - Anti-backflow infusion device - Google Patents

Anti-backflow infusion device Download PDF

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Publication number
CN201510611U
CN201510611U CN2009202427701U CN200920242770U CN201510611U CN 201510611 U CN201510611 U CN 201510611U CN 2009202427701 U CN2009202427701 U CN 2009202427701U CN 200920242770 U CN200920242770 U CN 200920242770U CN 201510611 U CN201510611 U CN 201510611U
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CN
China
Prior art keywords
liquid
float valve
infusion set
dropper
pipe
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Expired - Fee Related
Application number
CN2009202427701U
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Chinese (zh)
Inventor
文尧周
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Individual
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Individual
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Priority to CN2009202427701U priority Critical patent/CN201510611U/en
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Publication of CN201510611U publication Critical patent/CN201510611U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a medical device, in particular to an infusion device which can prevent liquid medicine in an infusion catheter and blood in a human body from flowing back under negative pressure after the liquid medicine is completely infused. The anti-backflow infusion device comprises a bottle puncturing needle, a visible dropper, a flow governor and a liquid medicine filter which are connected together in series through an infusion catheter. An air blocking device for suppressing liquid medicine is arranged in an infusion set and is matched with the visible dropper. The anti-backflow infusion device can effectively prevent blood in the human body from flowing back when the liquid medicine is completely infused on the basis that air is prevented from entering the artery. The air blocking device is directly seated at the liquid inlet of the infusion catheter connected with the visible dropper, the air is sealed, the downward flowing air is blocked, the working of the residual liquid in the tail end catheter is stopped, and the blood in the artery of the patient is prevented from flowing back into the infusion catheter by using the pressure of the suppressed residual liquid at the tail end. The utility model has the advantages that the structure is simple, the body health of the patient is effectively guaranteed, the use is convenient and the popularization is facilitated.

Description

A kind of anti-return infusion set
Technical field
This utility model relates to a kind of armarium, and particularly a kind of preventing is totally lost the back because the infusion set that suction function causes transfusion catheter inner liquid medicine and blood of human body to reflux at medicinal liquid.
Background technology
Disposable infusion set is the medical apparatus and instruments of using always, and it generally comprises wears a bottle pin, dropping funnel, flow regulator, liquid medicine filter, joint, by transfusion catheter they is connected.Infusion flow is regulated control by a flow regulator, carries out little Testudinis, when accurately infusing, and this adjusting control can not be satisfied the demand toward rule.2003.04.02, Patent Office of the People's Republic of China discloses the utility model patent (notification number: CN2542259) of a kind of " burette transfusion device " by name, comprise and wear a bottle pin, dropping funnel, flow regulator, liquid medicine filter, joint, by transfusion catheter they are chained together, be connected with on the dropping funnel and be with graduated graduated cylinder, they are arranged between two flow regulators by conduit.This utility model connects a graduated cylinder on traditional dropping funnel, and sets up a flow regulator, and it can the accurate measurement amount of infusion, and realizes trace, accurately regulates the control infusion flow.Its simple structure, easy for operation, be applicable to accurate transfusion use.Used medical transfusion device has solved switch dropping liquid size and has taken precautions against the air admission human body artery at present, but there is the defective that to guard at any time, if monitoring general idea or careless omission, then when dropping liquid finishes, may cause human body blood to reflux, cause patient's psychology and stress, may cause other consequences when serious.
Summary of the invention
This utility model provides a kind of transfusion device for solving the above-mentioned defective of prior art, and this utility model can be on the basis that prevents the air admission blood vessel, and blood of human body refluxes in the time of preventing effectively that medicinal liquid is totally lost.This utility model utilization air block device directly falls within the transfusion catheter liquid inlet that is connected with visual dropper, be beneficial to the air envelope by principle, break off descending air, stop the surplus liquid work of tail end liquid pipe, and use tail end to be pressed down surplus hydraulic coupling, stop patient's arteries blood to pass back into transfusion catheter.This utility model is owing to connect a graduated cylinder on traditional dropping funnel, and sets up a flow regulator, and against existing technologies, it can the accurate measurement amount of infusion, and realizes trace, accurately regulates the control infusion flow.Its simple structure, easy for operation, be applicable to accurate transfusion use.
For realizing above-mentioned effect, this utility model adopts following technical scheme:
A kind of anti-return infusion set, comprise and wear the flow regulator that a bottle pin, visual dropper, air are teased and ridicule pipe, liquid medicine filter and be positioned at visual dropper top, by transfusion catheter they being chained together forms pipe path, it is characterized in that: be provided with the float valve that the suppression medicinal liquid is used in described pipe path.
Described float valve is located in the visual dropper, and diameter is less than or equal to the diameter of the transfusion catheter that connects visual dropper liquid outlet.
Described float valve is located at the floating valve gear pipe that is positioned at visual dropper below and is communicated with by tube for transfusion with visual dropper, and the floating valve gear pipe is communicated with visual dropper pipeline, and the diameter of float valve is greater than the diameter of the transfusion catheter that connects floating valve gear pipe liquid outlet.
Described floating valve gear pipe liquid outlet is circular arc.
It is conical that described floating valve gear pipe liquid outlet is.
For the floating valve gear pipe that is circular arc with liquid outlet adapts, float valve is cylindric.
Adapt for being conical floating valve gear pipe with liquid outlet, it is conical that described float valve is.
This utility model can be on the basis that prevents the air admission blood vessel, and blood of human body refluxes in the time of preventing effectively that Pharmaceutical is totally lost.Utilization air block device directly falls within the transfusion catheter liquid inlet that is connected with visual dropper, be beneficial to the air envelope by principle, break off descending air, stop the surplus liquid work of tail end liquid pipe, and use tail end to be pressed down surplus hydraulic coupling, stop patient's arteries blood to pass back into transfusion catheter.Its simple structure can effectively ensure patient's health of human body, and easy for operation, is suitable for promoting.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment 1.
Fig. 2 is the structural representation of this utility model embodiment 2.
Fig. 3 is the structural representation of this utility model embodiment 3.
Fig. 4 is the structural representation of this utility model embodiment 4.
Among the figure: 1 for wearing a bottle pin, 2 for air is teased and ridicule pipe, flow regulator, 4 is that visual dropper, 5 is that float valve, 6 is that transfusion catheter, 7 is that liquid medicine filter, 8 is the floating valve gear pipe.
The specific embodiment
Embodiment 1
A kind of anti-return infusion set, comprise and wear bottle pin 1, air is teased and ridicule pipe 2, visual dropper 4, liquid medicine filter 7 and the flow regulator 3 that is positioned at visual dropper 4 tops, by transfusion catheter 6 they are chained together, in visual dropper 4, be provided with ball-point pen type float valve 5, the diameter of float valve 5 is less than the diameter of the transfusion catheter 6 that connects visual dropper 4 tail ends, float valve 5 floats on the medicinal liquid surface of visual dropper 4, when medicinal liquid is totally lost, float valve 5 is blocked transfusion catheter 6, utilization float valve 5 directly falls within transfusion catheter 6 liquid inlets that are connected with visual dropper 4, be beneficial to the air envelope by principle, break off descending air, stop the work of the surplus liquid of tail end liquid pipe in the transfusion catheter 6, and the tail end of utilization transfusion catheter 6 pressed down the pressure of surplus liquid, stop patient's arteries blood to pass back into transfusion catheter 6.
Embodiment 1
A kind of anti-return infusion set, comprise and wear bottle pin 1, air is teased and ridicule pipe 2, visual dropper 4, liquid medicine filter 7 and the flow regulator 3 that is positioned at visual dropper 4 tops, by transfusion catheter 6 they are chained together, in visual dropper 4, be provided with pearl shape float valve 5, the diameter of float valve 5 equals to connect the diameter of the transfusion catheter 6 of visual dropper 4 tail ends, float valve 5 floats on the medicinal liquid surface of visual dropper 4, when medicinal liquid is totally lost, float valve 5 is blocked transfusion catheter 6, utilization float valve 5 directly falls within transfusion catheter 6 liquid inlets that are connected with visual dropper 4, be beneficial to the air envelope by principle, break off descending air, stop the work of the surplus liquid of tail end liquid pipe in the transfusion catheter 6, and the tail end of utilization transfusion catheter 6 pressed down the pressure of surplus liquid, stop patient's arteries blood to pass back into transfusion catheter 6.
Embodiment 2
A kind of anti-return infusion set, comprise that wearing bottle pin 1, air teases and ridicule pipe 2, visual dropper 4, liquid medicine filter 7 and be positioned at the flow regulator 3 of visual dropper 4 tops and the floating valve gear pipe 8 of visual dropper 4 belows, by transfusion catheter 6 they are chained together, hollow pearl float valve 5 in the floating valve gear pipe 8, float valve 5 cooperates with device pipe bottom circular arc.When the transfusion feed flow, float valve 5 in the floating valve gear pipe 8 is in the medicinal liquid surface of floating valve gear pipe 8, when medicinal liquid is totally lost, float valve 5 is blocked the liquid inlet of floating valve gear pipe 8 lower end transfusion catheters 6, and utilization float valve 5 directly falls within transfusion catheter 6 liquid inlets that are connected with visual dropper 4, is beneficial to the air envelope by principle, break off descending air, stop the work of the surplus liquid of tail end liquid pipe in the transfusion catheter 6, and the tail end of utilization transfusion catheter 6 pressed down the pressure of surplus liquid, stop patient's arteries blood to pass back into transfusion catheter 6.
Embodiment 3
A kind of anti-return infusion set, comprise and wear bottle pin 1, air is teased and ridicule pipe 2, visual dropper 4, liquid medicine filter 7 and be positioned at the flow regulator 3 of visual dropper 4 tops and the floating valve gear pipe 8 of visual dropper 4 belows, by transfusion catheter 6 they are chained together, built-in circular float valve 5 in the floating valve gear pipe 8, cooperate with conical floating valve gear pipe 8 bottom circular cones, when the transfusion feed flow, circular float valve 5 floats on the medicinal liquid surface of floating valve gear pipe 8 in the floating valve gear pipe 8, when medicinal liquid is totally lost, float valve 5 is blocked the liquid inlet of floating valve gear pipe 8 lower end transfusion catheters 6, utilization float valve 5 directly falls within transfusion catheter 6 liquid inlets that are connected with visual dropper 4, be beneficial to the air envelope by principle, break off descending air, stop the work of the surplus liquid of tail end liquid pipe in the transfusion catheter 6, and the tail end of utilization transfusion catheter 6 pressed down the pressure of surplus liquid, stops patient's arteries blood to pass back into transfusion catheter 6.
Embodiment 4
A kind of anti-return infusion set, comprise and wear bottle pin 1, air is teased and ridicule pipe 2, visual dropper 4, liquid medicine filter 7 and be positioned at the flow regulator 3 of visual dropper 4 tops and the floating valve gear pipe 8 of visual dropper 4 belows, by transfusion catheter 6 they are chained together, built-in conical float valve 5 in the floating valve gear pipe 8, cooperate with conical floating valve gear pipe 8 bottom circular cones, when the transfusion feed flow, taper float valve 5 floats on the medicinal liquid surface in the floating valve gear pipe 8, when medicinal liquid is totally lost, float valve 5 is blocked the liquid inlet of floating valve gear pipe 8 lower end transfusion catheters 6, utilization float valve 5 directly falls within transfusion catheter 6 liquid inlets that are connected with visual dropper 4, be beneficial to the air envelope by principle, break off descending air, stop the work of the surplus liquid of tail end liquid pipe in the transfusion catheter 6, and the tail end of utilization transfusion catheter 6 pressed down the pressure of surplus liquid, stops patient's arteries blood to pass back into transfusion catheter 6.
Embodiment 5
In embodiment 2-4, cancel independent floating valve gear pipe 8, float valve 5 directly is placed in the visual dropper, directly pass through float valve 5 in visual dropper, utilization float valve 5 directly falls within transfusion catheter 6 liquid inlets that are connected with visual dropper 4, is beneficial to the air envelope by principle, break off descending air, stop the work of the surplus liquid of tail end liquid pipe in the transfusion catheter 6, and the tail end of utilization transfusion catheter 6 pressed down the pressure of surplus liquid, stop patient's arteries blood to pass back into transfusion catheter 6.

Claims (10)

1. anti-return infusion set, comprise and wear the flow regulator (3) that a bottle pin (1), visual dropper (4), air are teased and ridicule pipe (2), liquid medicine filter (7) and be positioned at visual dropper (4) top, by transfusion catheter (6) they being chained together forms pipe path, it is characterized in that: be provided with the float valve (5) that the suppression medicinal liquid is used in described pipe path.
2. a kind of anti-return infusion set according to claim 1 is characterized in that: described float valve (5) is located in the visual dropper (4), and diameter is less than or equal to the diameter of the transfusion catheter (6) that connects visual dropper (4) liquid outlet.
3. a kind of anti-return infusion set according to claim 1, it is characterized in that: described float valve (5) is located at the floating valve gear pipe (8) that is positioned at visual dropper below and is communicated with by tube for transfusion (6) with visual dropper, and floating valve gear pipe (8) is communicated with visual dropper (4) pipeline.
4. a kind of anti-return infusion set according to claim 3 is characterized in that: described floating valve gear pipe (8) liquid outlet is circular arc.
5. a kind of anti-return infusion set according to claim 3 is characterized in that: described floating valve gear pipe (8) liquid outlet is conical.
6. a kind of anti-return infusion set according to claim 4 is characterized in that: described float valve (5) is a round bead shape.
7. a kind of anti-return infusion set according to claim 5 is characterized in that: described float valve (5) is conical.
8. according to the described a kind of anti-return infusion set of arbitrary claim in the claim 3~7, it is characterized in that: the diameter of described float valve (5) is greater than the diameter of the transfusion catheter (6) that connects floating valve gear pipe (8) liquid outlet.
9. according to the described a kind of anti-return infusion set of arbitrary claim in the claim 1~7, it is characterized in that: described float valve is a hollow body.
10. according to the described a kind of anti-return infusion set of arbitrary claim in the claim 1~7, it is characterized in that: described float valve is a solid.
CN2009202427701U 2009-10-27 2009-10-27 Anti-backflow infusion device Expired - Fee Related CN201510611U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202427701U CN201510611U (en) 2009-10-27 2009-10-27 Anti-backflow infusion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202427701U CN201510611U (en) 2009-10-27 2009-10-27 Anti-backflow infusion device

Publications (1)

Publication Number Publication Date
CN201510611U true CN201510611U (en) 2010-06-23

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Application Number Title Priority Date Filing Date
CN2009202427701U Expired - Fee Related CN201510611U (en) 2009-10-27 2009-10-27 Anti-backflow infusion device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102553030A (en) * 2010-12-24 2012-07-11 林景春 Automatic stop transfusion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102553030A (en) * 2010-12-24 2012-07-11 林景春 Automatic stop transfusion device

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100623

Termination date: 20121027