CN201055555Y

CN201055555Y - Cut-off and liquid protecting infusion device

Info

Publication number: CN201055555Y
Application number: CNU2007201510666U
Authority: CN
Inventors: 胡军飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-14
Filing date: 2007-05-14
Publication date: 2008-05-07
Anticipated expiration: 2017-05-14

Abstract

The utility model discloses a liquid closure and preserving transfusion device used for closing and preserving the liquid when no liquid medicine in the bottle, which belongs to the technical field of the medical devices. The dripping bucket lower part of the transfusion device is made of hard materials and the inner wall of dripping bucket lower part is provided with six evenly distributed positioning ridges. The upper part outfit of the dripping bucket is made of elastic, transparent and soft materials; a fixed position-limiting device is arranged in the middle of the dripping bucket upper part. The liquid medicine can smoothly go through the surrounding parts of the position-limiting device. A hollow liquid closure valve, which can freely float up and down, is arranged between the position-limiting device and the liquid medicine outlet at the dripping bucket bottom part. A sphere-shaped sealing component, which is closely matched with the liquid closure valve, is arranged at the dripping bucket bottom part, and the size of the sealing component is smaller than or is equal to a hemisphere. When the transfusion is finished, the liquid closure valve goes down; the liquid medicine outlet at the lower part of the dripping bucket is sealed by the sealing component at the bottom of the liquid closure valve; the liquid medicine is preserved in the soft tube of the transfusion device and the air is kept out. The vein blood can not flow backwards, so the time of the coming of a nurse does not matter. The liquid medicine can be changed only by nipping the dripping bucket once and then loosing; the air is squeezed out and the liquid medicine enters the dripping bucket; the liquid closure goes up and the transfusion continues. The utility model is easy to be operated, safe and reliable.

Description

Dam and protect the liquid transfusion device

Technical field

This utility model relates to a kind of device of clinical vein transfusion usefulness, is provided with in pipeline and infuses when finishing, and can intercept the damming of device of pipeline and protect the liquid transfusion device, belongs to technical field of medical instruments.

Background technology

Present domestic use prevent the disposable infusion set that cross infection is used, the disposable infusion set that runs through connection by bottle plug puncture unit, dropper, dropping funnel, flexible pipe, flow regulator, liquid medicine filter, intravenous needle, when transfusion, do not note slightly, when medicinal liquid was totally lost, venous blood will flow backwards, and brought the deuce to pay to the nurse when changing medicinal liquid, as air not having be arranged, in case will cause danger in the air admission human body, must accompany the people to nurse during transfusion, and want hig diligence transfusion situation.

Summary of the invention

The deficiency that exists according to the disposable infusion set of present domestic use, the purpose of this utility model provides a kind of when medicinal liquid is totally lost in bottle, make in transfusion device and can keep medicinal liquid, there is not air in the flexible pipe, because the medicinal liquid of flexible pipe keeps certain pressure, a kind of novel the damming that venous blood just can not flow backwards protected the liquid transfusion device.

For realizing above purpose, take following technical proposal: the dropping funnel end portion is made with hard material, wall adds 6 vertical positioning edges within it, make with rubber-like soft transparent material on dropping funnel top, intersection is provided with a stopping means up and down, around the stopping means medicinal liquid is passed through smoothly, the liquid outlet top of dropping funnel bottom is made circular, liquid outlet should exceed the dropping funnel bottom, device has a hollow shutoff valve that can float flexibly up and down between liquid outlet and the stopping means, be dome shape up and down, the hemisphere rubber-like of shutoff valve lower end smaller or equal to hemisphere, softish medical material is made.

Owing to adopt above-listed technical scheme, transfusion device is when giving patient infusion, owing in the dropping funnel medicinal liquid is arranged, the shutoff valve come-up, medicinal liquid is unimpeded, and when medicinal liquid was totally lost the dropping funnel bottom, shutoff valve descended, block the medicine liquid outlet hole of dropping funnel lower end, make to keep medicinal liquid in the flexible pipe, do not have air in the flexible pipe, venous blood can not flow backwards, the nurse arrives equal no problem sooner or later, and is easy to use, safe and reliable.

Description of drawings

Fig. 1 dams to protect liquid transfusion device sketch map.

Fig. 2 is the cut-off equipment sketch map.

Fig. 3 is the valve body sketch map that dams.

1. bottle plug puncture units among the figure, 2. dropper, 3. dropping funnel upper body, 4. dropping funnel lower body, 5. flexible pipe, 6. liquid medicine filter, 7. intravenous needle, 8. flow regulator, 9. shutoff valve, 10. stopping means, 11. dropping funnels bottom medicine liquid outlet, 12. positioning edges, 13. sealing members, 14 dropping funnels.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing, dropping funnel lower body (4) is made with hard material, make with soft and resilient transparent material dropping funnel upper body (3), both can be glued together with organic solvent, 6 equally distributed positioning edges (12) are arranged around dropping funnel lower body (4) inwall, dropping funnel upper body (3), there is a fixed stopping means (10) at the gluing up and down position of dropping funnel lower body (4), stopping means (10) can make medicinal liquid pass through smoothly on every side, it is circular that dropping funnel bottom medicine liquid outlet (11) suitable for reading made, the interior stopping means of dropping funnel lower body (4) (10) has a shutoff valve (9) that can float flexibly up and down, shutoff valve (9) two ends is up and down made dome shape smaller or equal to hemisphere, the sealing member (13) of shutoff valve (9) lower end is used rubber-like, softish medical material is made, and sealing member (13) combines with shutoff valve (9) middle part close-fitting.Guarantor's liquid transfusion device that dams of shutoff valve is housed in the dropping funnel (14), in use, when medicinal liquid is totally lost fast arrival dropping funnel lower body (4) bottom, shutoff valve (9) descends, because interior 6 positioning edges of dropping funnel lower body (4) (12) location is arranged, the vertical decline of shutoff valve (9) makes the bottom just block dropping funnel bottom liquid outlet (11) smaller or equal to the dome shape sealing member (13) of hemisphere, and flexible pipe remains medicinal liquid in (5), venous blood can not flow backwards, and air more can not enter.

When changing bottle, nurse as long as dropping funnel upper body (3) pinched decontrols, and the part air in dropping funnel (14) and the dropper (2) is discharged in the bottle, and the medicinal liquid in the bottle enters dropping funnel (14), shutoff valve (9) come-up, and the continuation normal infusion, easy to use, safe and reliable.

More than complete cut-off equipment, can be directly installed on below the bottle plug puncture unit, use easier.

Claims

1. one kind dams and protects the liquid transfusion device, it comprises the bottle plug puncture unit that runs through connection, dropper, dropping funnel, flexible pipe, liquid medicine filter, intravenous needle and flow regulator, it is characterized in that: the dropping funnel end portion is made with hard material, wall adds 6 vertical positioning edges within it, make with rubber-like soft transparent material on dropping funnel top, intersection is provided with a stopping means up and down, around the stopping means medicinal liquid is passed through smoothly, the liquid outlet of dropping funnel bottom is made circular, the one hollow shutoff valve that can fluctuate is set between liquid outlet and the stopping means, be dome shape up and down, the sealing member rubber-like of shutoff valve lower end smaller or equal to hemisphere, softish medical material is made.

2. as claimed in claim 1 damming protected the liquid transfusion device, it is characterized in that: the complete cut-off equipment in dropping funnel and the dropping funnel thereof can be directly installed on below the bottle plug puncture unit.