CN203425325U - Infusion set capable of preventing blood from flowing back - Google Patents

Infusion set capable of preventing blood from flowing back Download PDF

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Publication number
CN203425325U
CN203425325U CN201320385138.9U CN201320385138U CN203425325U CN 203425325 U CN203425325 U CN 203425325U CN 201320385138 U CN201320385138 U CN 201320385138U CN 203425325 U CN203425325 U CN 203425325U
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CN
China
Prior art keywords
metal ball
transfusion
drip cup
kettle
liquid
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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
Application number
CN201320385138.9U
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Chinese (zh)
Inventor
刘万久
冉平隆
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Individual
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Individual
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Publication date
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Priority to CN201320385138.9U priority Critical patent/CN203425325U/en
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Publication of CN203425325U publication Critical patent/CN203425325U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an infusion set capable of preventing blood from flowing back. The infusion set comprises an infusion tube and a drip cup arranged on the infusion tube, a buoy is arranged in the drip cup, and a metal ball used for sealing a liquid outlet in the bottom of the drip cup is fixedly arranged at the bottom of the buoy. In the infusion process, when the liquid level in the drip cup is high, the buoyancy force of the buoy is larger than the gravity of the metal ball, the buoy drives the metal ball to float in the drip cup, and liquid freely flows from top to bottom. When liquid in the drip cup is little or even when the drip cup is empty, the buoyancy of the buoy is smaller than the gravity of the metal ball, the metal ball is located at the liquid outlet in the bottom of the drip cup, the gravity of the metal ball is used for sealing the liquid outlet, and the blood back-flowing phenomenon is avoided.

Description

Prevent the transfusion device of backflow of blood
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of liquid transfusion device that rear defence Hemostatic Oral Liquid flows backwards of being totally lost.
Background technology
Transfusion device is one of conventional medical apparatus and instruments of hospital.Patient is in when transfusion, especially in the situation that not having family members or medical personnel to accompany, do not pull out in time pin or close tube for transfusion and cause the phenomenon of blood backflow after the liquid of conventionally can being totally lost.Time has been grown and can cause syringe needle to stop up, and cannot realize and continue transfusion, causes transfusion device to be scrapped, and needs secondary transfusion, to patient, brings misery, also wastes medical care resource simultaneously.Particularly when patient adopts retention needle infusion, can cause remaining needle stop up and cause remaining needle to be scrapped, need change remaining needle separately and increase patient's financial burden.
For above-mentioned deficiency, need to improve existing transfusion device, to overcome above-mentioned shortcoming.
Utility model content
In view of this, this utility model provides a kind of transfusion device that prevents backflow of blood, makes liquid backflow of blood phenomenon can not occur after being totally lost, and prevents that syringe needle from stopping up, and avoids causing medical resource waste, avoids malpractice to occur.
This utility model solves the problems of the technologies described above by following technological means: a kind of transfusion device that prevents backflow of blood, comprise tube for transfusion and be arranged on the kettle that drips on tube for transfusion, cursory, cursory bottom is set in described kettle and is fixedly installed the metal ball that is useful on a sealing kettle bottom liquid outlet.
Further, described kettle bottom interior wall is provided with the cyclic spring film for auxiliary seal.
Further, described kettle bottom is set to spherical shape with tube for transfusion connecting portion.
The beneficial effects of the utility model: the transfusion device that prevents backflow of blood of the present utility model, comprise tube for transfusion and be arranged on the kettle that drips on tube for transfusion, cursory, cursory bottom is set in described kettle and is fixedly installed the metal ball that is useful on a sealing kettle bottom liquid outlet.During transfusion, when in dripping kettle, liquid level is higher, the buoyancy of cursory generation is greater than the gravity of metal ball self, and cursory drive metal ball swims in drips in kettle, and liquid is free drip from top to bottom; In dripping kettle, amount of liquid is less while even not having, and the buoyancy of cursory generation is less than the gravity of metal ball self, and now metal ball is positioned at a liquid outlet place of dripping kettle bottom, utilizes the gravity of metal ball self that liquid outlet is sealed, and therefore avoids producing blood backflow phenomenon.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that A-A in Fig. 1 is to cutaway view.
The specific embodiment
Below with reference to accompanying drawing, this utility model is elaborated, as shown in the figure: the transfusion device that prevents backflow of blood of the present embodiment, comprise tube for transfusion and be arranged on the kettle 1 on tube for transfusion, it is cursory 2 in described kettle, to arrange, and cursory bottom is fixedly installed and is useful on the metal ball 3 that kettle bottom liquid outlet is dripped in sealing.During transfusion, when in dripping kettle, liquid level is higher, the buoyancy of cursory generation is greater than the gravity of metal ball self, and cursory drive metal ball swims in drips in kettle, and liquid is free drip from top to bottom; In dripping kettle, amount of liquid is less while even not having, the buoyancy of cursory generation is less than the gravity of metal ball self, now metal ball is positioned at the liquid outlet place of dripping kettle bottom, utilize the gravity of metal ball self that liquid outlet is sealed, therefore avoid producing blood backflow phenomenon, thereby avoid the accidents such as syringe needle obstruction, Economy type medicine cost, reduces the probability that malpractice produces.
As the further improvement to technique scheme, described kettle bottom interior wall is provided with the cyclic spring film 4 for auxiliary seal.Below a kettle bottom is positioned at metal ball, cyclic spring film is set, is specially rubber membrane, when metal ball decline touches elastica, can play good sealing function, increase sealing effectiveness.
As the further improvement to technique scheme, described kettle 1 bottom and tube for transfusion connecting portion 5 are set to spherical shape.This spherical shape and metal ball shape conformal, the two can be fitted completely, realizes face contact, and sealing effectiveness is more obvious.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (2)

1. prevent a transfusion device for backflow of blood, comprise tube for transfusion and be arranged on the kettle (1) on tube for transfusion, it is characterized in that: in described kettle, arrange cursory (2), cursory bottom is fixedly installed and is useful on the metal ball (3) that kettle bottom liquid outlet is dripped in sealing; Described kettle bottom interior wall is provided with the cyclic spring film (4) for auxiliary seal.
2. the transfusion device that prevents backflow of blood according to claim 1, is characterized in that: described kettle (1) bottom is set to spherical shape with tube for transfusion connecting portion (5).
CN201320385138.9U 2013-06-28 2013-06-28 Infusion set capable of preventing blood from flowing back Expired - Fee Related CN203425325U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320385138.9U CN203425325U (en) 2013-06-28 2013-06-28 Infusion set capable of preventing blood from flowing back

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320385138.9U CN203425325U (en) 2013-06-28 2013-06-28 Infusion set capable of preventing blood from flowing back

Publications (1)

Publication Number Publication Date
CN203425325U true CN203425325U (en) 2014-02-12

Family

ID=50054390

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320385138.9U Expired - Fee Related CN203425325U (en) 2013-06-28 2013-06-28 Infusion set capable of preventing blood from flowing back

Country Status (1)

Country Link
CN (1) CN203425325U (en)

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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: 20140212

Termination date: 20140628

EXPY Termination of patent right or utility model