CN2629725Y - Disposable transfusion medicament feeding device - Google Patents
Disposable transfusion medicament feeding device Download PDFInfo
- Publication number
- CN2629725Y CN2629725Y CN 03255818 CN03255818U CN2629725Y CN 2629725 Y CN2629725 Y CN 2629725Y CN 03255818 CN03255818 CN 03255818 CN 03255818 U CN03255818 U CN 03255818U CN 2629725 Y CN2629725 Y CN 2629725Y
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- CN
- China
- Prior art keywords
- liquid
- air bag
- transfusion
- pinhead
- flap valve
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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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a medical device for dispensing vein infusion medicines, particularly a disposable medicating device for infusion use, comprising an imbibing pinhead, an infusion tube, an air bag, an outflow pinhead, wherein a liquid flow channel is formed by the imbibing pinhead, the infusion tube, the air bag and the outflow pinhead. The utility model also contains a liquid filter and two one-way valves positioned on two ends of the air bag. The imbibing pinhead is a double-hole pinhead connected with an air filter. The outflow pinhead is one provided with an air filter or a one-hole pinhead. The liquid filter is installed in the infusion tube. During the infusion from small bottles to big bottles or bags, the one-way valve close to the outflow end is opened while the other valve is closed when the air bag is squeezed; when the air bag is released, the one-way valve at the liquid-in end is opened while the one at the outflow end is closed. The liquid filter is positioned in the infusion tube. The medicating device has a simple structure, and can reduce the contamination of liquid medicines.
Description
This utility model relates to a kind of therapeutic medical drug feeding device, especially a kind of disposable infusion drug feeding device.
Background technology
During venous transfusion, often need in the liquid to add some medicines clinically, medicine commonly used has antibiotics or vitamin etc., the addition of liquid is increasing, when the medicine that adds,, alleviate nurse, doctor's the amount of labour, disposable drug feeding device occurred in order to reduce pollution.As application number is 90220894.2 utility model patent, and name is called " disposable medicine dissolving and adding appliance ", and it is made of these four parts of air bag, conduit, piercing needle and actuator.Use this disposable medicine dissolving and adding appliance when dosing, easily the impurity in the little liquid bottle to be joined in large transfusion bottle or the big liquid bag, pollute, and this structure also need be inserted one in addition when extracting the liquid in the little liquid bottle or being transported to large transfusion bottle and made the pore pipe that air pressure is identical with ambient pressure in the bottle on bottle, and this innovation and creation structure is complicated, inconvenience during operation needs controlled adjuster just can finish dosing.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of simple in structure, pollution that reduces medicinal liquid, easy to operate disposable infusion drug feeding device are provided.
Disposable infusion drug feeding device of the present utility model comprises imbibition syringe needle, tube for transfusion, air bag, liquid discharging pinhead, forms the passage of an energy by liquid between imbibition syringe needle, tube for transfusion, air bag and liquid discharging pinhead; It is characterized in that also comprising liquid filter and two unidirectional flap valves that are in balloon ends, described imbibition syringe needle is the needles with two holes of a pore area air filter; Described liquid discharging pinhead is the needles with two holes of a pore area air filter when being transported to large transfusion bottle, is the single hole syringe needle when described liquid discharging pinhead is transported to the infusion solutions bag; Described liquid filter is installed in the tube for transfusion; When little liquid bottle is carried liquid in big liquid bag or large transfusion bottle, extruding gasbag is opened near the unidirectional flap valve of liquid outlet, and another flap valve is in closed condition, unclamps air bag, then the unidirectional flap valve of liquid feeding end is in open mode, and the unidirectional flap valve of liquid outlet is in closed condition; Described liquid filter is installed in the tube for transfusion.
Described liquid filter is a filtration membrane.
Described tube for transfusion is made of hard conduit and flexible pipe, and hard conduit one end closely is connected with air bag, and the other end is placed in the flexible pipe.Described unidirectional flap valve can be the rubber-like thin slice, unidirectional flap valve at the liquid feeding end of air bag is an elastic sheet, this thin slice can stick on the end face that tube for transfusion and air bag plug, affixed points is at the upper limb of the mouth of pipe, the affixed points of described another unidirectional flap valve and air bag is at the end face mouth of pipe upper limb of air bag liquid outlet, the thin slice of making as silicone rubber.When extruding gasbag, the elastic sheet of liquid outlet is in open mode, liquid in the capsule can be flowed out smoothly, and the elastic sheet of liquid feeding end is in closed condition, when unclamping air bag, utilize its elasticity to make the elastic sheet of air bag liquid outlet can be returned to the position of sealing duct, and the elastic sheet of liquid feeding end is because siphonage is in open mode.
Described balloon ends is loaded in the tube for transfusion respectively, described unidirectional flap valve is loaded on the end of air bag, described unidirectional flap valve can be made of a retaining pin and a thin slice, described thin slice profile is greater than the hole of air bag liquid outlet, less than the tube for transfusion endoporus that joins with the air bag end, a side relative with the air bag end face is equipped with a retaining pin, between retaining pin and the air bag end face thin slice is housed, spacing and sheet thickness that retaining pin and air bag end face form form a matched in clearance, the unidirectional flap valve of air bag liquid feeding end is loaded on the place, end of the tube for transfusion that joins with air bag, the thin slice profile is greater than the endoporus of tube for transfusion, less than with the endoporus at the mutually close-fitting air bag of tube for transfusion end place, a side relative with tube for transfusion has a retaining pin, forms a matched in clearance with thin slice between the end of retaining pin and tube for transfusion; When extruding gasbag, the liquid outlet thin slice is because air pressure makes it be in open mode, and the liquid in the air bag flows out to large transfusion bottle or bag, and the thin slice of liquid feeding end is because gas pressure makes thin slice block the tube for transfusion mouth of pipe, prevents that liquid from getting back to the primary infusion bottle; Unclamp air bag, because siphonage, the thin slice of liquid feeding end is opened and is made liquid flow into air bag, and the liquid outlet of liquid outlet air bag is sealed by thin slice.
Described unidirectional flap valve can be a check-valves, described check-valves is a piped through hole of being with along its length, one end band convex shoulder, the other end becomes wedge, and a seam arranged in the end, can seal by ultrasonic bonding with the air bag end around its convex shoulder, described this check-valves is installed in balloon ends, perhaps make a convex shoulder at balloon ends portion endoporus place, the convex shoulder of described shouldered tubular check valve and air bag end convex shoulder pass through as welding, the method of the bonding class of glue is connected, this check-valves is installed in the endoporus of balloon ends, should make liquid flow to an end of band wedge head from shouldered end, described check-valves is a silicone rubber.
Described air bag less than second half inner chamber of air bag, makes the liquid that enters in the air bag converge to half intracavity place at the liquid outlet place of air bag near the first half inner chamber of liquid feeding end.
The beneficial effects of the utility model: simple in structure, easy to use, cost is low, and is easily manufactured.
Description of drawings
Accompanying drawing is a structural representation of the present utility model;
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing.
In the drawings, the disposable infusion drug feeding device, comprise air bag 4, tube for transfusion 2, imbibition syringe needle 1 and liquid discharging pinhead 6, two unidirectional flap valves 5 and 7, liquid filter 3, described air bag 4 is to be Sui's circle, half air bag wall thickness of liquid feeding end is identical, other half air bag wall thickness homogeneous phase together, the inner chamber of half air bag of liquid feeding end is less than the inner chamber of other half air bag, liquid in the air bag can be converged in half chamber of close liquid outlet of utricule, imbibition syringe needle 1 is the needles with two holes of a pore area air filter 8, the liquid discharging pinhead 6 that is transported in the large transfusion bottle is needles with two holes of a pore area air filter 8, and described air filter 8 is air filtration films; Described air bag 4 is in the have shouldered hole of liquid inlet and outlet end near the place, end, described unidirectional flap valve 5 and 7 is check-valves, described check-valves is a piped through hole of being with along its length, one end band convex shoulder, the other end becomes wedge, and a seam arranged in the wedge end, the convex shoulder that forms with the air bag end around its convex shoulder seals by ultrasonic bonding, described this check-valves is installed in the balloon ends, should make liquid flow to an end of band wedge head from shouldered end, described check-valves is that silastic material is made; Described tube for transfusion has two, is connected with air bag simultaneously, forms the passage of a transfusion, and tube for transfusion is connected with syringe needle, and described liquid filtering film is between air bag 4 and liquid discharging pinhead.
Claims (7)
1. the transfusion drug feeding device comprises imbibition syringe needle (1), tube for transfusion (2), air bag (4), liquid discharging pinhead (6), forms the passage of an energy by liquid between imbibition syringe needle (1), tube for transfusion (2), air bag (4) and liquid discharging pinhead (6); It is characterized in that also comprising liquid filter (3) and two unidirectional flap valves (5,7) that are in balloon ends, described imbibition syringe needle (1) is the needles with two holes of a pore area air filter (8); Described liquid discharging pinhead (6) is the liquid discharging pinhead or the single hole syringe needle of a pore area air filter (8); Described liquid filter (3) is installed in the tube for transfusion; When little liquid bottle is carried liquid in big liquid bag or large transfusion bottle, extruding gasbag (4) is opened near the unidirectional flap valve (5) of liquid outlet, and another flap valve (7) is in closed condition, when unclamping air bag, the unidirectional flap valve (7) of liquid feeding end is in open mode, and the unidirectional flap valve of liquid outlet (5) is in closed condition; Described liquid filter (3) is installed in the tube for transfusion.
2. disposable infusion drug feeding device according to claim 1 is characterized in that described unidirectional flap valve (5,7) is made of retaining pin and thin slice.
3. disposable infusion drug feeding device according to claim 1 is characterized in that described unidirectional flap valve (5,7) is an elastic sheet.
4. disposable infusion drug feeding device according to claim 3 is characterized in that described elastic sheet is a silicone rubber plate.
5. disposable infusion drug feeding device according to claim 1 is characterized in that described unidirectional flap valve (5,7) is a check-valves.
6. disposable infusion drug feeding device according to claim 5 is characterized in that described check-valves is an end band boss, and the other end becomes wedge, and the round tube of the tubulose of a seam at length direction band through hole arranged in the end.
7. according to claim 1,2,3,5 arbitrary described disposable infusion drug feeding devices, it is characterized in that described air bag (4) near the first half inner chamber of liquid feeding end less than second half inner chamber of air bag, make the liquid that enters in the air bag (4) converge to half intracavity place at the liquid outlet place of air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255818 CN2629725Y (en) | 2003-07-18 | 2003-07-18 | Disposable transfusion medicament feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255818 CN2629725Y (en) | 2003-07-18 | 2003-07-18 | Disposable transfusion medicament feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2629725Y true CN2629725Y (en) | 2004-08-04 |
Family
ID=34295130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255818 Expired - Fee Related CN2629725Y (en) | 2003-07-18 | 2003-07-18 | Disposable transfusion medicament feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2629725Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109528489A (en) * | 2019-01-29 | 2019-03-29 | 江苏省人民医院 | A kind of medical fluid blends conveying device |
-
2003
- 2003-07-18 CN CN 03255818 patent/CN2629725Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109528489A (en) * | 2019-01-29 | 2019-03-29 | 江苏省人民医院 | A kind of medical fluid blends conveying device |
| CN109528489B (en) * | 2019-01-29 | 2024-02-27 | 江苏省人民医院 | Liquid medicine blending and conveying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |