CN201046282Y

CN201046282Y - A medical safety dropping liquid device

Info

Publication number: CN201046282Y
Application number: CNU2007201079482U
Authority: CN
Inventors: 余利荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-03
Filing date: 2007-04-03
Publication date: 2008-04-16
Anticipated expiration: 2017-04-03

Abstract

The utility model relates to a medical safety infusion device, which comprises a liquid inlet tube, an infusion cavity and a liquid outlet tube, which is characterized in that an isolation chamber is arranged at the liquid outlet tube in the infusion cavity; the upper end of the liquid outlet tube is extended into the isolation chamber; a liquid port is arranged at the isolation wall of the isolation chamber; the position of the top inlet of the liquid outlet tube is higher than the position of the liquid port. With the adoption of the structure, when no liquid is in an infusion bottle, the liquid level in the infusion cavity continuously falls; in the end, when the position of the liquid level is lower than the position of the top inlet of the liquid outlet tube, the liquid no longer flows out; as the position of the top inlet of the liquid outlet tube is higher than the position of the liquid port, the liquid port is closed with the waste liquid; the liquid is remained sealed, separating the isolation chamber from the air, preventing the air from entering to the liquid outlet tube, so as to realize safe infusion. The utility model has the advantages of once injection molding, easy setup and closure of the product mold, and simultaneously no requiring other fittings, time and labor saving, and production cost reducing.

Description

A kind of medical safe liquid-drop machine

Technical field

This utility model belongs to a kind of medical apparatus, belongs to a kind of safe liquid-drop machine of the usefulness of infusing particularly.

Background technology

At present, patient all need observe liquid level when transfusion, prevent transfusion finish after air admission tube for transfusion and meeting accident, in order to address this problem, many safe liquid-drop machine fortune Ying Ersheng, for example: Chinese patent discloses a kind of hydrolock safe transfusion tube (patent No.: 200520062018.0, notification number: CN2808172Y), this tube for transfusion is provided with water sealing (sealing water) pipe in the dropping liquid body, the water sealing (sealing water) pipe tube wall is provided with fluid passage, outside water sealing (sealing water) pipe, be provided with closed casing, closed casing upper end is connected with float, and when in the infusion bottle during no liquid, float constantly descends with liquid level under the effect of gravity own, the drive closed casing moves down, when the sealed tube lower end is lower than the fluid passage of water seal tube wall, form water-stop between closed casing and the water sealing (sealing water) pipe, make tube for transfusion and air insulated, prevent to reach the purpose of safe handling in the air admission body.The shortcoming of this liquid-drop machine is: closed casing can not be with the minim pipette single injection-molded, the end cap that need open minim pipette during assembling is put into it, like this, not only made the exploitation complexity of this product mold, also made the complex structure of minim pipette, cause production cost of products to increase on the one hand, the assembling of product is also wasted time and energy on the other hand.

Summary of the invention

Technical problem to be solved in the utility model is: provide a kind of simple in structure, the safe liquid-drop machine of energy single injection-molded does not need to assemble separately after this liquid-drop machine molding.

In order to solve the problems of the technologies described above, this utility model adopts following technical scheme: a kind of medical safe liquid-drop machine, comprise feed tube, drip chamber, drain pipe, it is characterized in that: in drip chamber, be positioned at the drain pipe place and be provided with an isolation room, the upper end of described drain pipe extends in the isolation room, have fluid-through port on the dividing wall of isolation room, the position of described drain pipe top inlet is higher than the position of fluid-through port.

After adopting said structure: when in the infusion bottle during no liquid, liquid level in the drip chamber constantly descends, last liquid level is lower than drain pipe top inlet, liquid no longer flows out, and because of the position of drain pipe top inlet is higher than the position of fluid-through port, this moment, fluid-through port was sealed by residual liquid, keep liquid sealing, make isolation room and air insulated, prevent in the air admission drain pipe, thereby reach the purpose of safe infusion.

In order to solve the problems of the technologies described above, this utility model adopts following further technical scheme:

Described isolation room is made up of the wall and the dividing wall of drip chamber, and is injection molded into one.

After adopting said structure: the isolation room of liquid-drop machine can be with the drip chamber single injection-molded, thereby makes whole liquid-drop machine one-shot forming, not only product mold offer simply, do not need to assemble separately simultaneously, time saving and energy saving, reduced production cost.

This utility model also adopts following further technical scheme:

Described fluid-through port is arranged on the bottom of isolation room.After adopting such structure, the interior residual liquid of drip chamber was less after dropping liquid finished.

Description of drawings

Fig. 1 is the sketch map of this utility model dropping liquid state.

Fig. 2 is the sketch map of this utility model dropping liquid done state.

The specific embodiment

Referring to Fig. 1, this utility model comprises feed tube 1, drip chamber 2, drain pipe 3, in drip chamber 2, be positioned at drain pipe 3 places and be provided with an isolation room 4, the upper end of drain pipe 3 extends in the isolation room 4, have fluid-through port 6 on the dividing wall 5 of isolation room 4, the position of drain pipe 3 tops inlet 7 is higher than the position of fluid-through port 6, isolation room 4 can be made up of the wall and the dividing wall 5 of drip chamber 2, and be injection molded into one, in the present embodiment, drain pipe 3 is arranged near drip chamber sidewall 8 parts, isolation room 4 is by the sidewall 8 of drip chamber, the diapire 9 of drip chamber and dividing wall 5 are formed, in addition go out,, also can form isolation room 4 etc. by the diapire 9 and the dividing wall 5 of drip chamber according to the difference of drain pipe 3 positions.

Liquid is entered in the isolation room 4 by drip chamber 2 by fluid-through port 6 during use, and is flowed in the tube for transfusion by drain pipe 3, realizes normal infusion.

Referring to Fig. 2, when in the infusion bottle during no liquid, liquid level in the drip chamber 2 constantly descends, and last liquid level is lower than drain pipe top inlet 7, and liquid no longer flows out, the position that is higher than fluid-through port 6 because of the position of drain pipe top inlet 7, this moment, fluid-through port 6 was sealed by residual liquid, kept liquid sealing, made isolation room 4 and air insulated, prevent in the air admission drain pipe, thereby reach the purpose of safe infusion.Less for liquid residual in the drip chamber 2 after dropping liquid is finished, fluid-through port 6 is preferably disposed on the bottom of isolation room 4.

This utility model is simple in structure, and is safe, and the energy single injection-molded does not need assembling, only needs two respectively to connect a tube for transfusion during use and just can infuse, and is suitable for applying.

Claims

1. medical safe liquid-drop machine, comprise feed tube (1), drip chamber (2), drain pipe (3), it is characterized in that: in drip chamber (2), be positioned at drain pipe (3) and locate to be provided with an isolation room (4), the upper end of described drain pipe (3) extends in the isolation room (4), have fluid-through port (6) on the dividing wall (5) of isolation room (4), the position of described drain pipe top inlet (7) is higher than the position of fluid-through port (6).

2. a kind of medical safe liquid-drop machine as claimed in claim 1 is characterized in that: described isolation room (4) is made up of the wall and the dividing wall (5) of drip chamber (2), and is injection molded into one.

3. a kind of medical safe liquid-drop machine as claimed in claim 1 is characterized in that: described drain pipe (3) is arranged near drip chamber sidewall (8) part, and isolation room (4) is made up of the sidewall (8) of drip chamber, the diapire (9) and the dividing wall (4) of drip chamber.

4. as claim 1 or 2 or 3 described a kind of medical safe liquid-drop machines, it is characterized in that: described fluid-through port (6) is arranged on the bottom of isolation room (4).