CN106075669A - Only liquid aerofluxus anti-return liquid medicine filter - Google Patents
Only liquid aerofluxus anti-return liquid medicine filter Download PDFInfo
- Publication number
- CN106075669A CN106075669A CN201610669706.6A CN201610669706A CN106075669A CN 106075669 A CN106075669 A CN 106075669A CN 201610669706 A CN201610669706 A CN 201610669706A CN 106075669 A CN106075669 A CN 106075669A
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- China
- Prior art keywords
- filter
- return
- liquid
- cavity
- chamber
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Classifications
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- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of only liquid aerofluxus anti-return liquid medicine filter, the filter cavity of inlet and liquid outlet it is respectively arranged with by hollow and two ends, it is arranged on the liquid medicine filtering membrane in filter chamber body and back-flow preventer, and the exhaust apparatus being arranged on filter cavity is constituted, liquid outlet in one end of its liquid medicine filtering membrane close liquid outlet in being installed on filter chamber body precoat filter cavity, back-flow preventer is by the anti-return chamber being arranged at the other end in filter chamber body and is arranged at anti-return intracavity and covers the anti-return sheet of inlet and constitute, exhaust apparatus is made up of air vent and sealing film.The present invention makes medical filtration, blood-backflow preventing and the three kinds of function perfect adaptations of aerofluxus during transfusion, the effective guarantee personal safety of transfusion person, and it is easy to use, simple in construction, produce extremely low with use cost, can effectively reduce the workload of medical personnel during transfusion, improve degree of safety during transfusion, be suitable for medical institutions' spread.
Description
Technical field
The present invention relates to area of medical devices, a kind of only liquid aerofluxus medicinal liquid mistake being possible to prevent blood to reflux
Filter.
Background technology
Transfusion is common conventional medical procedure in medical procedure, in infusion process, in order to prevent the impurity in medicinal liquid
Inputted in human body with medicinal liquid, caused the sense of discomfort even harmful to human life of patient, caused medical safety accident, people
Often adding fixed filter on liquid-transport pipe-line, this kind of filter is carried out by medicinal liquid to flowing through of the filter membrane that is arranged in filter chamber
Filter, thus reach to purify medicinal liquid, prevent the impurity in medicinal liquid from entering the purpose in human body.
Transfusion uses intravenous injection, and the principle of transfusion is suitably to be perched by infusion bottle, makes the medicinal liquid in tube for transfusion
Pressure is more than venous blood pressure, so that medicinal liquid slowly flows in venous blood.During transfusion, when in medicinal liquid bottle
After medicinal liquid is totally lost, as pulled out needle tubing not in time, the most very likely thus occur more than transfusion overpressure because of venous blood pressure
Blood, to the phenomenon of tube for transfusion internal reflux, induces malpractice.But, because transfusion time is the most long, one or two at least
Hour, more than ten hour at most, in this long infusion process, medical personnel and sufferers themselves were impossible to the most at any time
Pay close attention to the medicinal liquid surplus in infusion bottle, needle tubing can not be pulled out after causing medicinal liquid to be totally lost in time, therefore, have during blood backflow phenomenon
Occur, have a strong impact on transfusion person healthy.
Meanwhile, when transfusion, can there is bubble in tube for transfusion, medical personnel need could will infuse after repeatable operation
Bubble in pipe is discharged, but, before transfusion, the unavoidable eliminating the most completely of the bubble in pipe is clean, and same during transfusion
Bubble can be produced, if these bubbles enter in human body with medicinal liquid, then can have a strong impact on the health of transfusion person.
Based on above-mentioned all, if one can be invented can effectively purify medicinal liquid in infusion process, again can anti-Hemostatic Oral Liquid
Backflow phenomenon occurs, moreover it is possible to gets rid of bubble in tube for transfusion, and low cost, the device of easily use, accomplishes that a device possesses multiple
Function, then will greatly facilitate management and the operation of infusion process, reduces the workload of medical personnel, and is effectively improved transfusion
Safety.
Summary of the invention
The invention reside in and a kind of only liquid exhaust liquid medicine filter being possible to prevent blood to reflux is provided, to solve background technology
In the presence of shortcoming with not enough.
Technical problem solved by the invention realizes by the following technical solutions:
Only liquid aerofluxus anti-return liquid medicine filter, it is characterised in that described filter is respectively arranged with feed liquor by hollow and two ends
Mouth and the filter cavity of liquid outlet, be arranged on the liquid medicine filtering membrane in filter chamber body and back-flow preventer, and be arranged on
Exhaust apparatus on filter cavity is constituted, and inlet and liquid outlet connect with filter inside cavity space, described medicinal liquid
Liquid outlet in one end of filter membrane close liquid outlet in being installed on filter chamber body precoat filter cavity, described prevents back
Stream device is by being arranged at the other end in filter chamber body anti-return chamber connect with filter inside cavity space, and activity
Being arranged at anti-return intracavity and cover the anti-return sheet composition of inlet, described exhaust apparatus is by being arranged on filter cavity
And connect the air vent in filter inside cavity space and space outerpace, and cover in filter chamber body on air vent only
Moisture film is constituted.
For the present invention, described filter cavity and internal cavities thereof are circular, filter cavity by be respectively provided with into
Liquid mouth is airtight with the upper cavity of liquid outlet and lower chamber to be socketed to form, and inlet and liquid outlet are arranged at the axis of filter cavity
On line.
For the present invention, described anti-return chamber is by the one-body molded convex chamber of circle on upper cavity and is socketed in circular convex
Lid on chamber is constituted, and lid has the through hole in connection filter inside cavity space and inner space, circle convex chamber.
For the present invention, described anti-return sheet is silica gel piece, is movably set in the inner space in circular convex chamber, and anti-
The diameter of backflow sheet is provided with towards the edge, surrounding, one end of liquid outlet less than the diameter of circular convex chamber inner round wall, this anti-return sheet
One circle dome or multiple mutually level little projection, this anti-return sheet also has multiple perforation.
For the present invention, in described filter chamber body, inlet surrounding is provided with a circle boss.
For the present invention, the cylindrical wall diameter in described anti-return chamber is less than filter chamber body inner round wall diameter, anti-return chamber
Separate space between being formed between cylindrical wall and filter chamber body inner round wall, the air vent of described exhaust apparatus is arranged at the interval of upper cavity
Position, chamber, sealing film is arranged at interval intracavity and presses close to the position of upper cavity upper side and cover air vent.
For the present invention, described sealing film utilizes the interface of the interface of upper and lower cavity and lid and upper cavity
Grip.
Operation principle: during transfusion, medicinal liquid flows into from inlet, and anti-return sheet is moved in the effect of medicinal liquid and gravity
Lower position, liquid medicine inflow passage opens, and it is logical that medicinal liquid flows through the perforation on anti-return sheet and surrounding gap passes through on lid
Hole arrives liquid medicine filtering membrane, flows out in needle tubing input human body through liquid outlet again, complete medical filtration mistake during transfusion after filtration
Journey；After having infused, when occurring that blood refluxes, blood enters in this filter from liquid outlet and arrives at anti-return sheet, prevents back
Flow moves up and is close to inlet under blood is pushed up the effect of power, the channel jam that inlet flows up,
Blood cannot the most upwards reflux out through inlet, thus the backflow of effective anti-Hemostatic Oral Liquid.
Beneficial effect: the present invention fills by installing the blood-backflow preventing of simple in construction on the basis of original liquid medicine filter additional
Put so that medical filtration, blood-backflow preventing and three kinds of functions of aerofluxus during transfusion reach perfect adaptation, effective guarantee transfusion person
Maximum safety problem--personal safety, the present invention is easy to use, simple in construction, produces extremely low with use cost, transfusion
During can effectively reduce the workload of medical personnel, improve degree of safety during transfusion, be suitable for medical institutions' spread.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of the present invention；
Fig. 2 is the A-A sectional view of the present invention.
In figure: 1--inlet, 2--liquid outlet, 3--liquid medicine filtering membrane, 4--anti-return sheet, 5--upper cavity, 6--cavity of resorption
Body, the circular convex chamber of 7--, 8--lid, 9--through hole, 10--dome or little projection, 11--bores a hole, 12--boss, separate space between 13--,
14--air vent, 15--sealing film.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail as follows:
See shown in accompanying drawing 1,2, only liquid aerofluxus anti-return liquid medicine filter, by hollow and two ends be respectively arranged with inlet 1 with
The filter cavity of liquid outlet 2, the liquid medicine filtering membrane 3 being arranged in filter chamber body and back-flow preventer, and be arranged on
Exhaust apparatus on filter cavity is constituted, and inlet and liquid outlet connect with filter inside cavity space.
Filter cavity and internal cavities thereof use circular configuration, upper cavity 5 be socketed to form (one with lower chamber 6 is airtight
Cavity is socketed in the periphery of another cavity), inlet and liquid outlet are respectively arranged on upper cavity and lower chamber and are arranged at
On the axis of filter cavity.During actual production, upper cavity can use with the socket of lower chamber threadeds
(inner headed face of upper cavity sidewall and the periphery of lower chamber sidewall have supporting screw thread, are screwed even by screw thread during assembling
Connect), it is possible to using the connected mode of other forms such as clamping, the two can form airtight connection, such as on cavity of resorption side
The periphery of wall arranges the flange collar that a circle is smooth, and it is supporting with flange collar corresponding recessed that the inner headed face of upper cavity sidewall is provided with circle
Groove, during assembling, firmly snaps in flange collar in groove thus forms the connection of upper cavity and lower chamber.
What liquid medicine filtering membrane was installed in filter chamber body in one end precoat filter cavity of liquid outlet goes out liquid
Mouthful, when producing, liquid medicine filtering membrane can be fixedly mounted in filter chamber body, meanwhile, liquid medicine filtering membrane and liquid outlet can be made
Between retain separate space between suitable distance, to increase the effective filtration area of filter membrane, reach with more preferably filter effect.
Back-flow preventer by be arranged in filter chamber body near one end of inlet and with filter inside cavity space
The anti-return chamber of connection, and be movably set in anti-return intracavity and cover the anti-return sheet 4 of inlet and constitute.Anti-return chamber by
The one-body molded convex chamber of circle on upper cavity 7 and the lid 8 being socketed on circular convex chamber are constituted, and lid has connection and filters
Device inside cavity space and the through hole 9 of inner space, circle convex chamber；Anti-return sheet uses silica gel piece, is movably set in circular convex chamber
Inner space in, and the diameter of anti-return sheet is less than the diameter of circular convex chamber inner round wall, and this anti-return sheet is towards liquid outlet
Surrounding, one end, along being provided with a circle dome or multiple mutually level little by protruding 10, this anti-return sheet also has multiple perforation
11.In use, upward, down, upper and lower two ends are respectively by inlet with liquid outlet even for lower chamber for the upper cavity of this filter
Connecing tube for transfusion, when transfusion, medicinal liquid flows from the top down, and anti-return sheet, under the active force of himself gravity and medicinal liquid, settles
To the bottommost in anti-return chamber, the bottom of anti-return sheet utilizes dome or little projection to prop up lid, so that anti-return sheet and lid
Forming cavity between body, medicinal liquid flows in this cavity in the perforation from anti-return sheet, then the through hole on lid flows downward
Arrive liquid medicine filtering membrane to filter.When blood is to this filter internal reflux, and through the through hole on liquid medicine filtering membrane and lid
When arriving at anti-return sheet, anti-return sheet, under blood flows up the effect of power, is pushed upwardly act and moves and make its upper surface tight
It is adjacent to inlet in fact, thus blocks blood and flow upwards out from inlet again, reach the purpose of anti-Hemostatic Oral Liquid backflow.In order to preferably
Anti-Hemostatic Oral Liquid refluxes, and the surrounding of inlet can arrange the boss 12 that a circle is the most protruding in cavity in filter chamber body,
During blood backflow, the most tight this circle boss that is adjacent in the center of anti-return sheet, meanwhile, the position, outer of anti-return sheet (not with
The cylindrical position of boss contact) slightly it is upturned because of the active force by blood, anti-return sheet is in himself elastic recovery
So that the more tight boss that is adjacent in position contacted with boss under the effect of power, effectively prevent because of anti-return sheet and liquid outlet portion
Position be not close to and it is possible to the blood that causes continues backflow.Based on above-mentioned principle and work process, during producing, anti-
The position of the multiple perforation arranged on backflow sheet, should the most effectively avoid inlet position, in case anti-return during Hemostatic Oral Liquid backflow
Sheet cannot block inlet.
Exhaust apparatus is by the aerofluxus being arranged on filter cavity and connecting filter inside cavity space and space outerpace
Mouthfuls 14, and cover the sealing film 15 on air vent in filter chamber body and constitute, sealing film uses common conventional sealing film,
Air can be made to flow outwardly and stop the flowing of medicinal liquid.The cylindrical wall diameter in anti-return chamber is straight less than filter chamber body inner round wall
Footpath, so that separate space 13, the air vent 14 of exhaust apparatus between being formed between anti-return chamber cylindrical wall and filter chamber body inner round wall
The separate space position around here being then arranged on upper cavity, sealing film is then arranged at interval intracavity and presses close to the position of upper cavity upper side also
Cover air vent.
During being embodied as, available lid divides with the interface of the interface of upper cavity and upper and lower cavity
The other inside and outside round edge to sealing film, along carrying out clamping position, can be fixed sealing film, medicinal liquid also can be prevented from sealing film simultaneously
Inside and outside circle edge flows outwardly.During transfusion, the bubble coalescence in medicinal liquid is in the internal cavity of this filter, and warp
Sealing film and air vent are discharged, in effectively preventing bubble to be injected into human body with medicinal liquid thus cause the generation of malpractice.
The present invention is by installing the blood-backflow preventing device of simple in construction additional on the basis of original liquid medicine filter so that defeated
Medical filtration, blood-backflow preventing and three kinds of functions of aerofluxus during liquid reach perfect adaptation, the maximum peace of effective guarantee transfusion person
Full problem--personal safety, the present invention is easy to use, simple in construction, produces extremely low with use cost, energy during transfusion
Effectively reduce the workload of medical personnel, improve degree of safety during transfusion, be suitable for medical institutions' spread.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The skill of the industry
Art personnel are it should be appreciated that the present invention is not restricted to the described embodiments, without departing from the spirit and scope of the present invention, and this
Invention also has various changes and modifications, and these changes and improvements both fall within claimed scope.The guarantor of application claims
Scope of protecting is defined by appending claims and equivalent thereof.
Claims (7)
1. stop liquid aerofluxus anti-return liquid medicine filter, it is characterised in that described filter by hollow and two ends be respectively arranged with into
Liquid mouth and the filter cavity of liquid outlet, be arranged on the liquid medicine filtering membrane in filter chamber body and back-flow preventer, and arrange
Exhaust apparatus on filter cavity is constituted, and inlet and liquid outlet connect with filter inside cavity space, described medicine
Liquid outlet in one end of liquid filter membrane close liquid outlet in being installed on filter chamber body precoat filter cavity, described is anti-
Reflux is by being arranged at the other end in filter chamber body the anti-return chamber connected with filter inside cavity space, and lives
The dynamic anti-return sheet composition being arranged at anti-return intracavity and covering inlet, described exhaust apparatus is by being arranged on filter cavity
Go up and connect the air vent in filter inside cavity space and space outerpace, and cover in filter chamber body on air vent
Sealing film is constituted.
Only liquid aerofluxus anti-return liquid medicine filter the most according to claim 1, it is characterised in that described filter cavity
And internal cavities is circular, filter cavity is by upper cavity and the airtight socket of lower chamber being respectively provided with inlet and liquid outlet
Forming, inlet and liquid outlet are arranged on the axis of filter cavity.
Only liquid aerofluxus anti-return liquid medicine filter the most according to claim 1, it is characterised in that described anti-return chamber by
The one-body molded convex chamber of circle on upper cavity and the lid being socketed on circular convex chamber are constituted, and lid has connection filter
Inside cavity space and the through hole of inner space, circle convex chamber.
Only liquid aerofluxus anti-return liquid medicine filter the most according to claim 1, it is characterised in that described anti-return sheet is
Silica gel piece, is movably set in the inner space in circular convex chamber, and the diameter of anti-return sheet is less than the straight of circular convex chamber inner round wall
Footpath, this anti-return sheet is provided with a circle dome or multiple mutually level little projection towards the edge, surrounding, one end of liquid outlet, should
Multiple perforation is also had on anti-return sheet.
Only liquid aerofluxus anti-return liquid medicine filter the most according to claim 1, it is characterised in that in described filter chamber body
Inlet surrounding is provided with a circle boss.
6. according to the only liquid aerofluxus anti-return liquid medicine filter described in claim 1 or 3, it is characterised in that described anti-return chamber
Cylindrical wall diameter less than filter chamber body inner round wall diameter, formed between anti-return chamber cylindrical wall and filter chamber body inner round wall
Between separate space, the air vent of described exhaust apparatus is arranged at separate space position between upper cavity, sealing film be arranged at interval intracavity press close to
The position of upper cavity upper side also covers air vent.
Only liquid aerofluxus anti-return liquid medicine filter the most according to claim 1, it is characterised in that described sealing film utilizes
The interface of upper and lower cavity and lid grip with the interface of upper cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669706.6A CN106075669A (en) | 2016-08-16 | 2016-08-16 | Only liquid aerofluxus anti-return liquid medicine filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669706.6A CN106075669A (en) | 2016-08-16 | 2016-08-16 | Only liquid aerofluxus anti-return liquid medicine filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106075669A true CN106075669A (en) | 2016-11-09 |
Family
ID=58069174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610669706.6A Pending CN106075669A (en) | 2016-08-16 | 2016-08-16 | Only liquid aerofluxus anti-return liquid medicine filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106075669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295340A (en) * | 2018-02-26 | 2018-07-20 | 上海振浦医疗设备有限公司 | A kind of syringe with fine filtering function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599581A (en) * | 2013-11-28 | 2014-02-26 | 电白县康尔美生物科技有限公司 | Backflow-preventing precise-filtering infusion apparatus |
| CN104248787A (en) * | 2013-06-07 | 2014-12-31 | 江西丽华鑫朗药业科技有限公司 | Double-layered precision automatic infusion-stopping infusion set |
| CN104288874A (en) * | 2013-07-19 | 2015-01-21 | 广东龙心医疗器械有限公司 | Disposable automatic exhausting and liquid stopping infusion device and method |
| CN204655656U (en) * | 2015-05-11 | 2015-09-23 | 上海聚民生物科技有限公司 | A kind of only liquid type precision infusion set |
| CN206443987U (en) * | 2016-08-16 | 2017-08-29 | 王高松 | Only liquid is vented anti-return liquid medicine filter |
-
2016
- 2016-08-16 CN CN201610669706.6A patent/CN106075669A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104248787A (en) * | 2013-06-07 | 2014-12-31 | 江西丽华鑫朗药业科技有限公司 | Double-layered precision automatic infusion-stopping infusion set |
| CN104288874A (en) * | 2013-07-19 | 2015-01-21 | 广东龙心医疗器械有限公司 | Disposable automatic exhausting and liquid stopping infusion device and method |
| CN103599581A (en) * | 2013-11-28 | 2014-02-26 | 电白县康尔美生物科技有限公司 | Backflow-preventing precise-filtering infusion apparatus |
| CN204655656U (en) * | 2015-05-11 | 2015-09-23 | 上海聚民生物科技有限公司 | A kind of only liquid type precision infusion set |
| CN206443987U (en) * | 2016-08-16 | 2017-08-29 | 王高松 | Only liquid is vented anti-return liquid medicine filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295340A (en) * | 2018-02-26 | 2018-07-20 | 上海振浦医疗设备有限公司 | A kind of syringe with fine filtering function |
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Application publication date: 20161109 |
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