CN100484581C - Medical safe liquid-drop machine - Google Patents
Medical safe liquid-drop machine Download PDFInfo
- Publication number
- CN100484581C CN100484581C CNB2007100679258A CN200710067925A CN100484581C CN 100484581 C CN100484581 C CN 100484581C CN B2007100679258 A CNB2007100679258 A CN B2007100679258A CN 200710067925 A CN200710067925 A CN 200710067925A CN 100484581 C CN100484581 C CN 100484581C
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- Prior art keywords
- liquid
- drain pipe
- drip chamber
- isolation room
- port
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- Expired - Fee Related
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Abstract
The safety medical infusion device includes one liquid inlet pipe, one liquid dropping cavity and one liquid outlet pipe, and features one isolating chamber located inside the liquid dropping cavity with one liquid port in the wall in the location lower than the entrance of the liquid outlet pipe. In case that the liquid inside the infusion bottle is exhausted and the liquid surface inside the isolating chamber is lowered to below the entrance of the liquid outlet pipe, no liquid flows out and the liquid port is sealed with the residual liquid to avoid air to enter into the liquid outlet pipe. The safety medical infusion device is once injection molded and has simple production process and low production cost.
Description
Technical field
The invention belongs to a kind of medical apparatus, belong 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 by this invention 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, the present invention 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, the present invention 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.
The present invention 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 dropping liquid state of the present invention.
Fig. 2 is the sketch map of dropping liquid done state of the present invention.
The specific embodiment
Referring to Fig. 1, the present invention includes 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.
The present invention 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 (3)
1, a kind of 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), 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.
2, a kind of 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), described drain pipe (3) is arranged near drip chamber sidewall (8) part, and isolation room (4) is by the sidewall (8) of drip chamber, diapire of drip chamber (9) and dividing wall (5) are formed.
3, a kind of medical safe liquid-drop machine as claimed in claim 1 or 2 is characterized in that: described fluid-through port (6) is arranged on the bottom of isolation room (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100679258A CN100484581C (en) | 2007-04-03 | 2007-04-03 | Medical safe liquid-drop machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100679258A CN100484581C (en) | 2007-04-03 | 2007-04-03 | Medical safe liquid-drop machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101032637A CN101032637A (en) | 2007-09-12 |
| CN100484581C true CN100484581C (en) | 2009-05-06 |
Family
ID=38729501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100679258A Expired - Fee Related CN100484581C (en) | 2007-04-03 | 2007-04-03 | Medical safe liquid-drop machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100484581C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284101A (en) * | 2011-07-07 | 2011-12-21 | 李林风 | Safety transfusion system with improved dropping funnel ventilation |
| CN105126196A (en) * | 2015-09-30 | 2015-12-09 | 湖南科技大学 | Water lock for preventing blood form returning in infusion process |
-
2007
- 2007-04-03 CN CNB2007100679258A patent/CN100484581C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101032637A (en) | 2007-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090506 Termination date: 20110403 |