CN103028167B - Air bubble filter unit of dropping funnel of infusion apparatus - Google Patents
Air bubble filter unit of dropping funnel of infusion apparatus Download PDFInfo
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- CN103028167B CN103028167B CN201110296699.7A CN201110296699A CN103028167B CN 103028167 B CN103028167 B CN 103028167B CN 201110296699 A CN201110296699 A CN 201110296699A CN 103028167 B CN103028167 B CN 103028167B
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Abstract
The invention relates to an air bubble filter unit of a dropping funnel of infusion apparatus. The air bubble filter unit is placed at the bottom of the dropping funnel of the infusion apparatus. The air bubble filter unit comprises a disc-shaped body. A step hole with a sealed top and a bottom communicated with the outer world is placed on the center of the bottom of the disc-shaped body. The upper portion of the step hole is a first step hole and the lower portion of the step hole is a second step hole. A circumference of the top surface of the disc-shaped body is provided with a plurality of long-waist-shaped holes communicated with the first step hole, wherein the circle center of the circumference is the top surface and R is the radius of the circumference, the R is larger than the radius of the first step hole, and is smaller than the radius of the top surface of the disc-shaped body. By adopting a gap structure with a curved path, the air bubble filter unit is capable of ensuring that the air bubbles can not pass through, and meanwhile preventing liquid medicine from directly shocking a filter screen of the liquid medicine or preventing bubbles at the bottom (without a filtering film) of the dropping funnel from directly entering a conduit.
Description
Technical field
The present invention relates to medical instruments field, relate in particular to a kind of bubble filtering device for infusion unit titrimeter.
Background technology
Infusion unit titrimeter in the market, has the dropper that can observe drop, and dropping funnel lower end is directly with hose connection, and on market, a liquid medicine filter is also equipped with in the dropping funnel of part transfusion device bottom.
Conventionally in dropping funnel, because directly impacting the bubble that dropping funnel bottom or liquid medicine filter produce, drop enters sometimes conduit, also may intravasation, and large bubble can damage patient, and patient sees Bubble formation mental pressure when transfusion.
Summary of the invention
The object of the invention is to overcome the defect of prior art and a kind of bubble filtering device for infusion unit titrimeter is provided, can prevent that in infusion process, bubble enters conduit.
The object of the present invention is achieved like this:
A kind of bubble filtering device for infusion unit titrimeter of the present invention, this bubble filtering device is located at the bottom of described infusion unit titrimeter, described bubble filtering device comprises disc-shaped body, this disc-shaped body bottom centre place is provided with the stepped hole that a top seal and bottom are in communication with the outside, this stepped hole top is first step hole, bottom is second step hole, on the end face of described disc-shaped body and to take this end face center be the center of circle, R is that the circumference of radius is provided with the long waist-shaped hole that several are communicated with described first step hole, described R is greater than the pore radius in described first step hole and is less than the radius of described disc-shaped body end face.
Above-mentioned a kind of bubble filtering device for infusion unit titrimeter, wherein, described long waist-shaped hole is axially to arrange, and by being located at the radial hole of its bottom, is communicated with described first step hole.
Above-mentioned a kind of bubble filtering device for infusion unit titrimeter, wherein, described bubble filtering device also comprises a liquid medicine filtering membrane, this liquid medicine filtering membrane heat seal is on the step surface in described second step hole.
Above-mentioned a kind of bubble filtering device for infusion unit titrimeter, wherein, the central area of described disc-shaped body end face is to lower recess.
Above-mentioned a kind of bubble filtering device for infusion unit titrimeter, wherein, the aperture in described first step hole is less than the aperture in described second step hole.
Bubble filtering device of the present invention, adopts labyrinth gap structure, and bubble cannot be passed through, and has prevented that medicinal liquid from directly impacting medical filtration net or dropping funnel bottom (without liquid medicine filtering membrane time) bubble and directly entering conduit simultaneously.
The present invention has transfusion bubble filtering function, has prevented that bubble from entering conduit until intravasation damages patient, has alleviated patient simultaneously and when transfusion, has seen the mental pressure that bubble produces.
Accompanying drawing explanation
Fig. 1 is axonometric chart of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the cutaway view along A-A direction in Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1 to Fig. 3, there is shown the present invention for the bubble filtering device of infusion unit titrimeter, bubble filtering device of the present invention is located at the bottom of infusion unit titrimeter, this bubble filtering device comprises disc-shaped body 1, disc-shaped body 1 bottom centre place is provided with the axial step hole 2 that a top seal and bottom are in communication with the outside, stepped hole 2 tops are first step hole 21, bottom is second step hole 22, on disc-shaped body 1 end face and take end face center as the center of circle, R is evenly equipped with 4 long waist-shaped holes 3 on the circumference of radius, this long waist-shaped hole 3 is axial hole, and be communicated with first step hole 21 by being located at the radial hole 31 of long waist-shaped hole 3 bottoms, this radius of a circle R is greater than the pore radius in first step hole 21 and is less than the radius of disc-shaped body 1 end face.
The above-mentioned bubble filtering device for infusion unit titrimeter, the aperture in first step hole 21 is less than the aperture in second step hole 22, first step hole 21 top seals, 22 bottoms, second step hole are in communication with the outside; The central area 4 of disc-shaped body 1 end face is to lower recess.
The present invention also can be used in conjunction with liquid medicine filtering membrane 4, as shown in Figure 3, and the mutual heat seal of contact surface of the excircle of liquid medicine filtering membrane 4 end faces part and second step hole 22 step surfaces.
Bubble filtering device of the present invention, utilize axial long waist-shaped hole and radial hole to coordinate the labyrinth gap structure forming, bubble cannot be passed through, prevented that medicinal liquid from directly impacting medical filtration net or dropping funnel bottom (without liquid medicine filtering membrane time) bubble and directly entering conduit simultaneously.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (4)
1. the bubble filtering device for infusion unit titrimeter, this bubble filtering device is located at the bottom of described infusion unit titrimeter, it is characterized in that, described bubble filtering device comprises disc-shaped body, this disc-shaped body bottom centre place is provided with the stepped hole that a top seal and bottom are in communication with the outside, this stepped hole top is first step hole, bottom is second step hole, on the end face of described disc-shaped body and to take this end face center be the center of circle, R is that the circumference of radius is provided with the long waist-shaped hole that several are communicated with described first step hole, described R is greater than the pore radius in described first step hole and is less than the radius of described disc-shaped body end face,
Described long waist-shaped hole is axially to arrange, and by being located at the radial hole of its bottom, is communicated with described first step hole.
2. a kind of bubble filtering device for infusion unit titrimeter as claimed in claim 1, is characterized in that, described bubble filtering device also comprises a liquid medicine filtering membrane, and this liquid medicine filtering membrane heat seal is on the step surface in described second step hole.
3. a kind of bubble filtering device for infusion unit titrimeter as claimed in claim 1, is characterized in that, the central area of described disc-shaped body end face is to lower recess.
4. a kind of bubble filtering device for infusion unit titrimeter as described in claims 1 to 3 any one, is characterized in that, the aperture in described first step hole is less than the aperture in described second step hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110296699.7A CN103028167B (en) | 2011-10-08 | 2011-10-08 | Air bubble filter unit of dropping funnel of infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110296699.7A CN103028167B (en) | 2011-10-08 | 2011-10-08 | Air bubble filter unit of dropping funnel of infusion apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103028167A CN103028167A (en) | 2013-04-10 |
| CN103028167B true CN103028167B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110296699.7A Active CN103028167B (en) | 2011-10-08 | 2011-10-08 | Air bubble filter unit of dropping funnel of infusion apparatus |
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| CN (1) | CN103028167B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583132A (en) * | 2017-10-12 | 2018-01-16 | 湖北爱凯尔医疗科技有限公司 | Disposable automatic exhaust, only liquid, precision filter infusion set |
| CN107875474A (en) * | 2017-12-11 | 2018-04-06 | 湖北爱凯尔医疗科技有限公司 | Disposable diaphragm exhaust, tension force stop liquid light proofing infusion apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5336194A (en) * | 1992-08-01 | 1994-08-09 | Fresenius Ag | Implantable apparatus |
| CN201211374Y (en) * | 2008-06-18 | 2009-03-25 | 江西洪达医疗器械集团有限公司 | Disposable safe liquor-filtration transfusion device |
| CN201324412Y (en) * | 2008-12-11 | 2009-10-14 | 杭州科诺过滤器材有限公司 | Self-exhausting type filter for infusion |
| CN201551669U (en) * | 2009-12-10 | 2010-08-18 | 雷帮雄 | Automatic exhaust net membrane liquid medicine filter |
| CN201959341U (en) * | 2011-01-25 | 2011-09-07 | 上海振浦医疗设备有限公司 | Precise liquid medicine filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009273515A (en) * | 2008-05-12 | 2009-11-26 | Corona Giken Kogyo Kk | Filter device |
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2011
- 2011-10-08 CN CN201110296699.7A patent/CN103028167B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5336194A (en) * | 1992-08-01 | 1994-08-09 | Fresenius Ag | Implantable apparatus |
| CN201211374Y (en) * | 2008-06-18 | 2009-03-25 | 江西洪达医疗器械集团有限公司 | Disposable safe liquor-filtration transfusion device |
| CN201324412Y (en) * | 2008-12-11 | 2009-10-14 | 杭州科诺过滤器材有限公司 | Self-exhausting type filter for infusion |
| CN201551669U (en) * | 2009-12-10 | 2010-08-18 | 雷帮雄 | Automatic exhaust net membrane liquid medicine filter |
| CN201959341U (en) * | 2011-01-25 | 2011-09-07 | 上海振浦医疗设备有限公司 | Precise liquid medicine filter |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-273515A 2009.11.26 |
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| CN103028167A (en) | 2013-04-10 |
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