CN105233374A - Filter for medical infusion set - Google Patents
Filter for medical infusion set Download PDFInfo
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- CN105233374A CN105233374A CN201510738132.9A CN201510738132A CN105233374A CN 105233374 A CN105233374 A CN 105233374A CN 201510738132 A CN201510738132 A CN 201510738132A CN 105233374 A CN105233374 A CN 105233374A
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- housing
- feed liquor
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- fluid housing
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Abstract
The invention relates to a filter for a medical infusion set, and belongs to medical instruments. A liquid inlet pipe of a liquid inlet shell is communicated with a liquid inlet hole formed in the bottom of the liquid inlet shell, and a liquid outlet pipe of a liquid outlet shell is communicated with a liquid outlet hole in the upper end of the liquid outlet shell; exhaust holes are formed in the upper end of the liquid inlet shell, an exhaust film is welded to the corresponding exhaust hole, and a hydrophilic filtering film is installed on the inner surface of the liquid outlet shell. The filter has the advantages that liquid is fed from the lower portion and discharged from the upper portion, bubbles are pushed by the liquid rising gradually to the upper portions of the shells to be exhausted through the exhaust holes, and bubbles are not generated on a liquid outlet; the hydrophilic filtering film is sealed and fixed through a flexible annular elastic body, the welding working procedure is omitted, the assembly accuracy is reduced, and the complex assembly procedure is simplified; no bubble dead angle exists on the convex spine part, sensitive exhaust and intermittent welding are achieved, welding stress is reduced, and the side faces of the shells are prevented from leaking; the liquid medicine can be automatically stopped by the hydrophilic filtering film to achieve automatic liquid stop.
Description
Technical field
The invention belongs to medical apparatus and instruments, particularly a kind of medical Transfusion device filter.
Background technology
Venous transfusion is the method for clinical more general a kind of disease therapy.During transfusion, in medicinal liquid, transfusion device itself all can carry particulate matter, and at present, the clinical filter that generally uses filters it, avoids particulate matter to enter human body and causes malpractice.But the filter common configuration of current Clinical practice is: after two housings fasten, welded by the periphery of housing, install filter membrane in housing and fix with case weld, the upper end of housing arranges inlet and air vent, and lower end arranges liquid outlet.There is following defect in the filter of this structure: 1, filter exhaust is not smooth, can produce gas liquid mixture, need nurse to be ejected by bubble, waste time and energy, if can not get rid of bubble in time, can form aeroembolism, entail dangers to patients ' lives in input body; 2, be welded and fixed between filter membrane and housing, welding back casing is easily out of shape, and have impact on the filter area of filter membrane; 3, there is aerofluxus dead angle in existing filter, and gas cannot be discharged, and affects entering or discharging of liquid; 4, after two housings fasten, periphery is welded, due to the stress of welding, filter head housings body deformability can be made, in use easily seepage occurs.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, a kind of medical Transfusion device filter is provided, it ensures that the gas-liquid separation air in filter can be discharged smoothly, and do not produce bubble, filter membrane is simply easy to assembly, good airproof performance, can not seepage be there is, housing intermittent welding, lower welding stress, improve sincereness of becoming a useful person, ensure weld strength.
The object of the invention is to be achieved through the following technical solutions: a kind of medical Transfusion device filter, is characterized in that: it comprises feed liquor housing, fluid housing, hydrophilic filter film and steam vent; Described feed liquor housing and fluid housing fasten integrally welded mutually, and form the space of accommodating medicinal liquid between; The back side of described feed liquor housing is provided with feed tube, and the top of feed tube is provided with inlet, and the inlet opening arranged with feed liquor housing bottom bottom feed tube is communicated with; The back side of described fluid housing is provided with drain pipe, and the bottom of drain pipe is provided with liquid outlet, and the top of drain pipe is communicated with the liquid outlet of fluid housing upper end; Described steam vent is arranged on the upper end of feed liquor housing, and exhaust membrane is installed at steam vent place; Install in described fluid housing and amass identical hydrophilic filter film with fluid shell inner surface.
On the edge of described feed liquor shell inner surface, interval arranges projection, the Shang Yi interval, edge of fluid housing arranges projection, feed liquor housing is relative with fluid housing to be fastened, protruding one_to_one corresponding on feed liquor housing and fluid housing fastens, discontinuous welding interface is formed between projection, welding discontinuous welding interface, feed liquor housing and fluid housing form integrative-structure.
The upper end of described feed liquor housing and fluid housing is equipped with convex ridge portion.
The inner surface in described feed liquor housing convex ridge portion is provided with platform, and this platform is identical with convex ridge portion area, and be arranged in parallel with feed liquor shell inner surface.
Groove is provided with in described fluid housing, this groove is arranged on the inner surface of fluid housing along the surrounding of fluid housing along inner side, elastomer seal body is placed in groove, hydrophilic filter film is arranged on above elastic sealed body, feed liquor housing and fluid housing fasten, and hydrophilic filter film is clamped sealing by the structure platform of feed liquor housing and elastic sealed body.
Advantage of the present invention and beneficial effect are:
1, filter is set to liquid bottom in and top out, liquid raises from housing bottom gradually to top, bubble is pushed into the top gas-liquid separation of housing, discharges smoothly from steam vent, the liquid that liquid outlet is flowed out does not produce bubble, decreases the vent sequence of medical personnel's complexity.
2, the hydrophilic filter film in housing is fixed by the structure platform of soft elastic sealed body and feed liquor housing, ensures the sealing of hydrophilic filter film, makes intracavity not have seepage, eliminate welding sequence, reduce the linkage editor of assembly precision and complexity.
3, the upper end of housing is set to convex ridge portion, and bubble shifts the top of housing onto, and housing upper can not form dead angle, and bubble successfully can be pushed into steam vent discharge along the hypotenuse in convex ridge portion, can sensitive aerofluxus.
4, feed liquor housing is relative with on fluid housing is provided with projection, after two housings fastens, form discontinuous welding interface, only need weld discontinuous welding interface by fixing for two housings, reduce the stress of welding, make face of weld smooth, improve welding lumber recovery, avoid the generation of housing side leakage accident, also reduce energy resource consumption, during welding, the spittle enters in housing simultaneously.
5, owing to installing hydrophilic filter film in fluid housing, hydrophilic filter film has intercepted gas and has entered, and when medicinal liquid enters away sky time, medicinal liquid stops automatically, reaches automatic liquid-stopping.
Accompanying drawing explanation
Fig. 1 is upper shell structural representation of the present invention.
Fig. 2 is structure upward view of the present invention.
Fig. 3 is that schematic diagram is cutd open in side of the present invention.
Fig. 4 is fluid shell border partial structurtes schematic diagrams.
Wherein: 1-feed liquor housing, 2-fluid housing, 3-hydrophilic filter film, 4-steam vent, 5-elastic sealed body, 6-structure platform, 7-is protruding, 8-discontinuous welding interface, 9-convex ridge portion, 10-platform, 11-feed tube, 12-drain pipe, 13-inlet, 14-liquid outlet, 15-groove, 16-inlet opening, 17-liquid outlet, 18-exhaust membrane.
Detailed description of the invention
Embodiment: as Figure 1-4, a kind of medical Transfusion device filter, on the edge of its feed liquor housing 1 inner surface, interval arranges protruding 7, the Shang Yi interval, edge of fluid housing 2 arranges protruding 7, feed liquor housing 1 is relative with fluid housing 2 to be fastened, projection 7 one_to_one corresponding on feed liquor housing 1 and fluid housing 2 fastens, discontinuous welding interface 8 is formed between protruding 7, welding discontinuous welding interface 8, feed liquor housing 1 and fluid housing 2 form integrative-structure, and form the space of accommodating medicinal liquid between, only discontinuous welding interface need be welded by fixing for two housings, reduce the stress of welding, make face of weld smooth, improve welding lumber recovery, avoid the generation of housing side leakage accident, also reduce energy resource consumption, during welding, the spittle can not enter in housing simultaneously, the upper end of described feed liquor housing 1 and fluid housing 2 is equipped with convex ridge portion 9, the inner surface in feed liquor housing 1 convex ridge portion 9 is provided with platform 10, this platform 10 is identical with convex ridge portion 9 area, and be arranged in parallel with feed liquor housing 1 inner surface, this platform 10 makes the cavity in feed liquor housing convex ridge portion 9 be slightly less than bottom cavity, the liquid entering into convex ridge portion below feed liquor housing is extruded, and is more conducive to gas and discharges smoothly from steam vent, the longitudinal axis place, the back side of described feed liquor housing 1 is provided with feed tube 11, and the top of feed tube 11 is provided with inlet 13, and inlet 13 is positioned at the top in feed liquor housing convex ridge portion 9, is communicated with bottom feed tube 13 with the inlet opening 16 arranged bottom feed liquor housing 1, described steam vent 4 is arranged on the convex ridge portion 9 of feed liquor housing 1 upper end, and symmetry is positioned at the both sides of feed tube 11, steam vent 4 is communicated with feed liquor housing 1, steam vent 4 place welding exhaust membrane 18 in feed liquor housing 1, the longitudinal axis place, the back side of described fluid housing 2 is provided with drain pipe 12, the bottom of drain pipe 12 is provided with liquid outlet 14, the top of drain pipe 12 is communicated with the liquid outlet 17 of fluid housing 2 upper end, liquid bottom in and top out, liquid raises from housing bottom gradually to top, and top bubble being pushed into housing is discharged smoothly from steam vent, groove 15 is provided with in described fluid housing 2, this groove 15 is arranged on the inner surface of fluid housing 2 along the surrounding of fluid housing 2 along inner side, annular or polygonal resilient body seal 5 is placed in groove 15, in fluid housing 2, the hydrophilic filter film 3 identical with fluid housing 2 internal surface area is installed, hydrophilic filter film 3 is positioned at above elastic sealed body 5, feed liquor housing 1 and fluid housing 2 fasten, hydrophilic filter film 3 is clamped sealing by structure platform 6 and the elastic sealed body 5 of feed liquor housing 1, intracavity is made not have seepage, eliminate welding sequence, reduce the linkage editor of assembly precision and complexity, simultaneously, hydrophilic filter film has intercepted gas and has entered, gas-liquid separation in housing, the liquid that liquid outlet flows out can not produce bubble, decrease the vent sequence of medical personnel's complexity, when medicinal liquid enters away sky time, medicinal liquid stops automatically, reach automatic liquid-stopping.
Operation principle:
Liquid enters from the inlet of feed tube, inlet opening through feed liquor housing bottom enters in the space of the accommodating medicinal liquid formed between two housings, along with entering of medicinal liquid, liquid level progressively raises, after medicinal liquid is filtered by filter membrane, flowed out by the liquid outlet of fluid housing upper, liquid outlet through drain pipe exports, bubble in medicinal liquid space can with the rising of liquid level in housing, be pushed to steam vent place, discharged by steam vent, decrease the vent sequence of medical personnel's complexity, avoid the generation of malpractice; Convex ridge portion above housing can make bubble successfully flow to the discharge of steam vent place along the hypotenuse of convex ridge, and do not have bubble dead angle, bubble can sensitively be discharged.Time medicinal liquid in feed liquor housing enters away sky, hydrophilic filter film intercepts gas and enters, and gas can not go to drain pipe, and medicinal liquid stops automatically, reaches automatic liquid-stopping.
Claims (5)
1. a medical Transfusion device filter, is characterized in that: it comprises feed liquor housing, fluid housing, hydrophilic filter film and steam vent; Described feed liquor housing and fluid housing fasten integrally welded mutually, and form the space of accommodating medicinal liquid between; The back side of described feed liquor housing is provided with feed tube, and the top of feed tube is provided with inlet, and the inlet opening arranged with feed liquor housing bottom bottom feed tube is communicated with; The back side of described fluid housing is provided with drain pipe, and the bottom of drain pipe is provided with liquid outlet, and the top of drain pipe is communicated with the liquid outlet of fluid housing upper end; Described steam vent is arranged on the upper end of feed liquor housing, and exhaust membrane is installed at steam vent place; Install in described fluid housing and amass identical hydrophilic filter film with fluid shell inner surface.
2. a kind of medical Transfusion device filter according to claim 1, it is characterized in that: on the edge of described feed liquor shell inner surface, interval arranges projection, the Shang Yi interval, edge of fluid housing arranges projection, feed liquor housing is relative with fluid housing to be fastened, protruding one_to_one corresponding on feed liquor housing and fluid housing fastens, form discontinuous welding interface between projection, welding discontinuous welding interface, feed liquor housing and fluid housing form integrative-structure.
3. a kind of medical Transfusion device filter according to claim 1, is characterized in that: the upper end of described feed liquor housing and fluid housing is equipped with convex ridge portion.
4. a kind of medical Transfusion device filter according to claim 3, is characterized in that: the inner surface in described feed liquor housing convex ridge portion is provided with platform, and this platform is identical with convex ridge portion area, and be arranged in parallel with feed liquor shell inner surface.
5. a kind of medical Transfusion device filter according to claim 1, it is characterized in that: in described fluid housing, be provided with groove, this groove is arranged on the inner surface of fluid housing along the surrounding of fluid housing along inner side, elastic sealed body is placed in groove, hydrophilic filter film is arranged on above elastic sealed body, feed liquor housing and fluid housing fasten, and hydrophilic filter film is clamped sealing by the structure platform of feed liquor housing and elastic sealed body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738132.9A CN105233374A (en) | 2015-11-02 | 2015-11-02 | Filter for medical infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738132.9A CN105233374A (en) | 2015-11-02 | 2015-11-02 | Filter for medical infusion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105233374A true CN105233374A (en) | 2016-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510738132.9A Pending CN105233374A (en) | 2015-11-02 | 2015-11-02 | Filter for medical infusion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105233374A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715231A (en) * | 2017-11-13 | 2018-02-23 | 浙江衢州荣博医疗器材有限公司 | Micro pump extension tube |
| CN109481294A (en) * | 2018-12-12 | 2019-03-19 | 河南中医药大学 | Moxibustion device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121963U (en) * | 1992-05-29 | 1992-11-18 | 马剑文 | Liquid medicine filter for infusion |
| CN2834581Y (en) * | 2005-10-27 | 2006-11-08 | 浙江伏尔特医疗器械有限公司 | Medicinal liquid filter |
| CN203075376U (en) * | 2013-01-25 | 2013-07-24 | 由渠力 | Self-exhausting medicine liquid filter |
| CN203874225U (en) * | 2014-05-30 | 2014-10-15 | 天津理源科技有限公司 | Automatic nuclear pore film liquid stopping precise infusion filter |
| CN205073434U (en) * | 2015-11-02 | 2016-03-09 | 天津哈娜好兴达医用制品有限公司 | Medical filter for transfusion system |
-
2015
- 2015-11-02 CN CN201510738132.9A patent/CN105233374A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121963U (en) * | 1992-05-29 | 1992-11-18 | 马剑文 | Liquid medicine filter for infusion |
| CN2834581Y (en) * | 2005-10-27 | 2006-11-08 | 浙江伏尔特医疗器械有限公司 | Medicinal liquid filter |
| CN203075376U (en) * | 2013-01-25 | 2013-07-24 | 由渠力 | Self-exhausting medicine liquid filter |
| CN203874225U (en) * | 2014-05-30 | 2014-10-15 | 天津理源科技有限公司 | Automatic nuclear pore film liquid stopping precise infusion filter |
| CN205073434U (en) * | 2015-11-02 | 2016-03-09 | 天津哈娜好兴达医用制品有限公司 | Medical filter for transfusion system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715231A (en) * | 2017-11-13 | 2018-02-23 | 浙江衢州荣博医疗器材有限公司 | Micro pump extension tube |
| CN109481294A (en) * | 2018-12-12 | 2019-03-19 | 河南中医药大学 | Moxibustion device |
| CN109481294B (en) * | 2018-12-12 | 2024-03-22 | 河南中医药大学 | Moxibustion device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 4, No. 4, Dongli Economic Development Zone, Tianjin City, Dongli Applicant after: Puduobang Xingda (Tianjin) Medical Technology Co Ltd Address before: 300300 Dongli Economic Development Zone, Dongli District, No. seven road, No. 4, No. Applicant before: TIANJIN HANACO XINGDA MEDICAL CO., LTD. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
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| RJ01 | Rejection of invention patent application after publication |