CN104368063A - Air pressure switch and infusion pipe with switch - Google Patents
Air pressure switch and infusion pipe with switch Download PDFInfo
- Publication number
- CN104368063A CN104368063A CN201410664559.4A CN201410664559A CN104368063A CN 104368063 A CN104368063 A CN 104368063A CN 201410664559 A CN201410664559 A CN 201410664559A CN 104368063 A CN104368063 A CN 104368063A
- Authority
- CN
- China
- Prior art keywords
- switch
- container
- tube
- piston
- electric conductor
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
- A61M2205/183—General characteristics of the apparatus with alarm the sound being generated pneumatically
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
Abstract
The invention discloses an air pressure switch and an infusion pipe with the air pressure switch. The air pressure switch is composed of a sealed container with changeable volume, a switch body and an insulating wire, wherein the switch body is arranged in the container, one end of the insulating wire is connected to the switch body, the other end of the insulating wire is led out of the container, the container is provided with a connecting port communicated with the inner cavity of the container, the connecting port is in butt joint with a pressure pipeline, and the switch body in the container is turned off when the pressure in the pressure pipeline is normal or positive; when the pressure in the pressure pipeline is negative, the inner cavity of the container is decreased, the originally turned-off switch body is turned on after being squeezed. A connecting port in butt joint with the connecting port of the air pressure switch is formed in the front end of an air inlet pipe air filter of the infusion pipe. Through cooperative use of the air pressure switch and the infusion pipe, a nurse is automatically called after liquid medicine infusion is finished.
Description
Technical field
Baroswitch and apply the tube for transfusion of this switch, belongs to electrically and medical treatment consumptive materials manufacture field.
Background technology
Existing transfusion calling automatic interrupter adopts that optical signal, cam swing arm mechanism, meter are heavy, the ball float modes such as conduction that fall control in medicinal liquid conduction, medicinal liquid, and complex structure needs more electrical equipment or mechanical organ.The mode that particularly element directly contacts medicinal liquid has a strong impact on infusion safety.
Summary of the invention
1, a kind of baroswitch, comprise the sealed container of variable volume, switch and insulated electric conductor, described switch-linear hybrid is in described container, described insulated electric conductor one end is connected to the other end on switch and leads to outside container, and described container is provided with the interface through with container intracavity, described interface and pressure pipeline docking, when in pressure pipeline be normal pressure or malleation time container in switch be close, when being negative pressure in pressure pipeline, the inner chamber of container diminishes, and original switch of cutting out is extruded rear unlatching.
2, the air bag pressure switch according to summary of the invention 1, be made up of air bag, electric contact, insulated electric conductor, described air bag is provided with an interface docked with manometer tube, described air bag inwall is provided with two electric contacts vis-a-vis, each electric contact is respectively connected with an insulated electric conductor led to outside air bag.
3, the piston baroswitch according to summary of the invention 1, be made up of piston tube, piston, electric conductor, electric contact, insulated electric conductor, described piston tube is provided with an interface docked with manometer tube, described piston tube bottom interior wall is provided with two electric contacts, each electric contact is respectively connected with an insulated electric conductor led to outside piston tube, the one side of described piston area to electric contact is provided with electric conductor.
4, a kind of and baroswitch described in summary of the invention 1 to 3 with the use of tube for transfusion, comprise infusion tube, liquid medicine filter, flow regulator, drip kettle, bottle plug puncture unit, air inlet pipe air filter, an interface docked with the interface of baroswitch provided by the invention is set up in the front end of the air inlet pipe air filter of described tube for transfusion.
Accompanying drawing explanation
Fig. 1 is the cut away view of air bag pressure switch, and Fig. 2 is the cut away view of piston baroswitch, and number in the figure implication is: air bag 1, plunger shaft 2, piston 3, interface 4, electric contact 5, insulated electric conductor 6, ring shaped conductive body 7.
Detailed description of the invention
One, the enforcement of device:
1, tube for transfusion: set up an interface in the front end of the air inlet pipe air filter of tube for transfusion, for docking with the interface of baroswitch provided by the invention.
2, air bag pressure switch (see Fig. 1): air bag pressure switch is made up of air bag, electric contact, insulated electric conductor, described air bag is provided with an interface docked with the interface of tube for transfusion, described air bag inwall is provided with the relative electric contact in a pair position, each electric contact is respectively connected with an insulated electric conductor leading to air bag and connect calling device or calling system outward.
3, piston baroswitch (see Fig. 2): piston baroswitch is made up of piston tube, piston, electric conductor, electric contact, insulated electric conductor, described piston tube is provided with an interface docked with the interface of tube for transfusion, described piston tube bottom interior wall is provided with two electric contacts, each electric contact is respectively connected with an insulated electric conductor leading to piston tube and connect calling device or calling system outward, the one side of described piston area to electric contact is provided with ring shaped conductive body.
Illustrate: during defeated bagged liquid, sack can become flat along with the outflow of medicinal liquid, and without the need to supplementing air in bag, as long as be arranged to button size for the air bag of the baroswitch of transfusion bag, it is very little that the volume of plunger shaft also can be arranged.During active conveying bottle powder charge need constantly in bottle supplement air fill up medicinal liquid defeated walk after space, divide specification to set for the air bag of the baroswitch of defeated bottled medicinal liquor or the volume of plunger shaft by the medicinal liquid capacity in medicine bottle.
Two, the enforcement of transfusion and automatic call:
First by the bed switch parallel connection (or with the calling device of autogamy be connected) of the insulated conductor of baroswitch with hospital's calling system during transfusion, also by plug and socket, baroswitch is connected with hospital calling system, concrete operations and operation principle as follows:
First choose the baroswitch of dimension according to bottle Chinese medicine liquid measure during defeated bottled medicinal liquor:
When adopting air bag pressure switch: 1, by the interface on tube for transfusion and the docking of the interface on air bag, now two electric contacts are separated by airbag wall, and switch cuts out; 2, transfusion starts medicinal liquid in rear bottle because of deadweight flow into tube for transfusion in bottle, and produce negative pressure in bottle by the air in air bag in the air inlet pipe inhaler of tube for transfusion, air bag becomes flat gradually, and when flat to switch open after two contact, calling device starts calling.
Adopt piston baroswitch time: 1, piston is pulled open make the air in plunger shaft and the amount of liquid medicine in medicine bottle coupling, the electric conductor now on piston away from the electric contact of two in piston tube bottom interior wall, switch close; 2, again by the interface on tube for transfusion and the docking of the interface in plunger shaft; 3, the air after transfusion in bottle in vacuum suction plunger shaft progresses in bottle through the air inlet pipe of tube for transfusion, piston is gradually near electric contact, when after piston and two contact, two contacts are connected logical rear switch open by the electric conductor on piston, and calling device starts calling.
Bottle optional air bag of Chinese medicine liquid measure or piston minimum baroswitch need not be considered during defeated bagged liquid, but must first air in emptying bag.Way is: be punctured to after in transfusion bag with bottle plug puncture unit, will turn around upward bottom sack, is emptied in tube for transfusion by air in bag with hands extruding sack.
When adopting air bag pressure switch: 1, by the interface on tube for transfusion and the docking of the interface on air bag, now two electric contacts are separated by airbag wall, and switch cuts out; 2, transfusion start rear sack with liquid outflow become flat, space in the bag after filling liquid outflow is come without the need to air, the siphon produced air inlet pipe in the intersection through air inlet pipe and tube for transfusion due to the very slow liquid in pipe of transfusion speed is minimum, the pressure that the discrepancy in elevation of bag inner liquid medicine and air inlet pipe produces is greater than the siphon power of tube for transfusion to air inlet pipe, what therefore air inlet pipe obtained in tube for transfusion is malleation, and the electric contact in air bag keeps separately; 3, after bag inner liquid medicine is totally lost, in bag, both no liquid also can flow to tube for transfusion without air, and the space after transfusion liquid in pipe declines can only attract replenish air in air bag, become flat very soon because air bag is originally very little, two electric contacts contact very soon, switch open, and calling device starts calling.
When adopting piston baroswitch: 1, pulled open by piston and make the electric conductor on piston leave two electric contacts in piston tube bottom interior wall, switch cuts out; 2, again by the interface on tube for transfusion and the docking of the interface in plunger shaft; 3, after transfusion, when when there being medicinal liquid in bag, medicinal liquid flows into tube for transfusion under conducting oneself with dignity, vacuum suction can not be subject in plunger shaft, after bag inner liquid medicine is totally lost, the vacuum suction piston that liquid deadweight decline in tube for transfusion produces is gradually near electric contact, and when after piston and two contact, the electric conductor on piston is by two contactings, switch open, calling device starts calling.
Remarkable advantage of the present invention is: 1, structure and simple, cost is very cheap.2, contact with medicinal liquid without any part, the air in variodenser just enters tube for transfusion after filter, can ensure infusion safety.3, infuse fast complete time automatic call nurse.
Claims (4)
1. a baroswitch, comprise the sealed container of variable volume, switch and insulated electric conductor, feature is: described switch-linear hybrid is in described container, described insulated electric conductor one end is connected to the other end on switch and leads to outside container, described container is provided with the interface through with container intracavity, described interface and pressure pipeline docking, when in pressure pipeline be normal pressure or malleation time container in switch be close, when being negative pressure in pressure pipeline, the inner chamber of container diminishes, and original switch of cutting out is extruded rear unlatching.
2. air bag pressure switch according to claim 1, be made up of air bag, electric contact, insulated electric conductor, it is characterized in that: described air bag is provided with an interface docked with manometer tube, described air bag inwall is provided with two electric contacts vis-a-vis, each electric contact is respectively connected with an insulated electric conductor led to outside air bag.
3. piston baroswitch according to claim 1, be made up of piston tube, piston, electric conductor, electric contact, insulated electric conductor, it is characterized in that: described piston tube is provided with an interface docked with manometer tube, described piston tube bottom interior wall is provided with two electric contacts, each electric contact is respectively connected with an insulated electric conductor led to outside piston tube, the one side of described piston area to electric contact is provided with electric conductor.
4. one kind and baroswitch described in claims 1 to 3 with the use of tube for transfusion, comprise infusion tube, liquid medicine filter, flow regulator, drip kettle, bottle plug puncture unit, air inlet pipe air filter, it is characterized in that: an interface docked with the interface of baroswitch provided by the invention is set up in the front end of the air inlet pipe air filter of described tube for transfusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664559.4A CN104368063A (en) | 2014-11-09 | 2014-11-09 | Air pressure switch and infusion pipe with switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664559.4A CN104368063A (en) | 2014-11-09 | 2014-11-09 | Air pressure switch and infusion pipe with switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104368063A true CN104368063A (en) | 2015-02-25 |
Family
ID=52547419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410664559.4A Pending CN104368063A (en) | 2014-11-09 | 2014-11-09 | Air pressure switch and infusion pipe with switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104368063A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143659A (en) * | 1975-08-28 | 1979-03-13 | Helmut Biedermann | Stilligout or dropper particularly for infusion apparatus |
| EP0094682B1 (en) * | 1982-05-17 | 1987-11-19 | Solco Basel Ag | Apparatus for the collection and reinfusion of blood |
| CN1058150A (en) * | 1990-07-14 | 1992-01-29 | 冯建光 | Medical pneumatic injector |
| CN2209532Y (en) * | 1994-12-31 | 1995-10-11 | 纪文龙 | Electric-driving fluid expeller for intravenous injection |
| CN2574689Y (en) * | 2002-10-21 | 2003-09-24 | 韦元强 | Transfusion warner |
| CN1885467A (en) * | 2005-06-23 | 2006-12-27 | 王正宗 | Air pressure switch of aerated product |
| CN201049115Y (en) * | 2007-06-05 | 2008-04-23 | 杨殿金 | Injection filler |
-
2014
- 2014-11-09 CN CN201410664559.4A patent/CN104368063A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143659A (en) * | 1975-08-28 | 1979-03-13 | Helmut Biedermann | Stilligout or dropper particularly for infusion apparatus |
| EP0094682B1 (en) * | 1982-05-17 | 1987-11-19 | Solco Basel Ag | Apparatus for the collection and reinfusion of blood |
| CN1058150A (en) * | 1990-07-14 | 1992-01-29 | 冯建光 | Medical pneumatic injector |
| CN2209532Y (en) * | 1994-12-31 | 1995-10-11 | 纪文龙 | Electric-driving fluid expeller for intravenous injection |
| CN2574689Y (en) * | 2002-10-21 | 2003-09-24 | 韦元强 | Transfusion warner |
| CN1885467A (en) * | 2005-06-23 | 2006-12-27 | 王正宗 | Air pressure switch of aerated product |
| CN201049115Y (en) * | 2007-06-05 | 2008-04-23 | 杨殿金 | Injection filler |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |