CN105194768A - Filter drip chamber with automatic liquid stopping and automatic exhausting functions - Google Patents
Filter drip chamber with automatic liquid stopping and automatic exhausting functions Download PDFInfo
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- CN105194768A CN105194768A CN201510735990.8A CN201510735990A CN105194768A CN 105194768 A CN105194768 A CN 105194768A CN 201510735990 A CN201510735990 A CN 201510735990A CN 105194768 A CN105194768 A CN 105194768A
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- dropping funnel
- filter membrane
- liquid
- inner chamber
- lid
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Abstract
A filter drip chamber with automatic liquid stopping and automatic exhausting functions belongs to medical apparatus and instruments, a liquid inlet tube is arranged at the upper end of the drip chamber, the lower end of the drip chamber is provided with a drip chamber cover provided with a drip chamber cover bleeder tube and an exhausting tube, a liquid stopping exhausting device is arranged on the drip chamber cover, a filter membrane inner cavity bleeder tube is arranged in the inner cavity of a filter membrane and is communicated with the drip chamber cover bleeder tube, and openings are formed in two side walls of the filter membrane inner cavity bleeder tube; an exhausting pipeline is arranged outside the inner cavity of the filter membrane; the tail end of the exhausting pipeline is communicated with the drip chamber cover exhausting tube; a hydrophilic filter membrane is fixed at the opening surface of the inner cavity of the filter membrane. The filter drip chamber with the automatic liquid stopping and automatic exhausting functions has the advantages of being capable of automatically stopping liquid and automatically exhausting, ensuring drip weight, reducing a filter in a pipeline, and ensuring flow speed and flow rate, and the filter membrane is always positioned in a state of being vertical to the horizontal plane due to the moving up of a filter.
Description
Technical field
The invention belongs to a kind of medical apparatus and instruments, particularly one is with automatic liquid-stopping, self-bleeding filtration dropping funnel.
Background technology
Venous transfusion is the method for clinical more general a kind of disease therapy.Existing transfusion system structure is mostly: in the upper end of dropping funnel, dropping funnel upper cover is housed, dropping funnel covers the feed tube and liquid injection pipe that are provided with and are communicated with dropping funnel, the lower end of dropping funnel is provided with the drain pipe be communicated with dropping funnel, and drain pipe is communicated with intravenous needle by conduit, and conduit is equipped with flow regulator.In use there is following defect in the transfusion device of this structure: when 1, dropping funnel upper cover is installed, because the material of dropping funnel upper cover and dropping funnel is yielding, after installation, dropping funnel upper cover and dropping funnel always have some and tilt, like this, medicinal liquid enters feed tube, when oozing from the dropper bottom feed tube, can not ensure that dripping of medicinal liquid is heavy, medical personnel just cannot accurately calculate dropping liquid amount and liquid droping speed, some are strictly controlled to the patient of liquid droping speed and dropping liquid amount, cannot ensure that it is treated, threat to life sometimes; When 2, starting to infuse, be all be inverted dropping funnel by nurse or extrude dropping funnel energetically, medicinal liquid reach a certain height in dropping funnel, meanwhile, is in person supervised by nurse and control flow regulator, to ensure in dropping funnel that liquid level is kept certain height and medicinal liquid is full of all pipelines.If firmly excessive, can be full of medicinal liquid in dropping funnel, cannot observe dropping liquid amount and drip speed, at this moment, medical personnel also will release part medicinal liquid, cause waste, also add unnecessary workload to medical personnel; 3, when the medicinal liquid in dropping funnel will flow, medicinal liquid in dropping funnel can flow down always, until medicinal liquid just can stop flowing during the pressure balance of the venous pressure of human body and transfusion device herb liquid, now, due to the venous pressure effect of human body, blood can be back in the conduit of transfusion device, this phenomenon can cause that patient's is terrified, also nurse can be made to spend more time aerofluxus again, and thrombosis can be formed very soon, even can cause the generation of malpractice; 4, after dripping medicinal liquid in dropping funnel, very easily form the mixture of gas and liquid, gas-liquid mixture can enter in the infusion pipeline below dropping funnel, form bubble phenomenon during transfusion, for ensureing the life and health of patient, the bubble in transfusion catheter must be discharged by nurse completely, nonetheless, transfusion tube wall also often adsorbs bubble, needs nurse to pinch with finger bullet and get rid of bubble, bring great inconvenience to nurse; 5, after medicinal liquid is totally lost, can enter air in pipeline, need patient and medical personnel to observe medicinal liquid surplus at any time, close flow regulator in time, medical personnel and patient have very large mental pressure.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, there is provided a kind of with automatic liquid-stopping, self-bleeding filtration dropping funnel, it can automatic liquid-stopping, automatic vent, ensure to drip and weigh, and the filter that can cut in pipeline, due to filter moving, filter membrane can be made to be in all the time to become with horizontal plane the state of 90 degree, ensure that flow velocity and flow.
The object of the invention is to be achieved through the following technical solutions: a kind of with automatic liquid-stopping, self-bleeding filtration dropping funnel, it is characterized in that: it comprises dropping funnel, dropping funnel lid and stops liquid exhaust apparatus, the feed tube be communicated with dropping funnel is installed in the upper end of described dropping funnel, dropping funnel lid is installed in the lower end of dropping funnel, dropping funnel lid discharging tube and dropping funnel lid exhaustor are set bottom dropping funnel lid, only liquid exhaust apparatus is installed in dropping funnel; Described only liquid exhaust apparatus is arranged on dropping funnel and covers, it comprises hydrophilic filter film, filter membrane inner chamber and discharge duct, the opening surface of filter membrane inner chamber is towards side, filter membrane inner chamber is vertical with dropping funnel lid to be arranged, in filter membrane, intracavity is provided with filter membrane inner chamber discharging tube, be communicated with dropping funnel lid discharging tube, the two side of filter membrane inner chamber discharging tube is provided with through opening from top to bottom; The arranged outside discharge duct of filter membrane inner chamber, the top of discharge duct is provided with steam vent, and exhaust membrane is fixed at steam vent place, and the end of discharge duct is communicated with dropping funnel lid exhaustor; The opening surface of filter membrane inner chamber fixes hydrophilic filter film.
The upper end of described dropping funnel also arranges medicine-pouring pipe, and medicine-pouring pipe, feed tube and dropping funnel are one-body molded, and is communicated with in dropping funnel respectively.
Described dropping funnel is covered with slot, and dropping funnel is inserted in the slot of dropping funnel lid, fixes with dropping funnel lid.
The height of described filter membrane inner chamber is 5-50mm.
The aperture slots of described discharging tube two side is 0.1-1.5mm.
Advantage of the present invention and beneficial effect are:
1, liquid enters in dropping funnel, and the gas in dropping funnel progressively raises in liquid levels, by gas extrusion in the steam vent at discharge duct top stopping liquid exhaust apparatus, discharges via dropping funnel base bleed hole.
2, the Drainage pipe two side of filter membrane inner chamber is provided with opening, this aperture slots is 0.1-1.5mm, after liquid enters filter membrane inner chamber, because the aperture slots of discharging tube two side is very little, due to the surface tension of liquid, liquid so far cannot pass through this opening, along with liquid progressively enters filter membrane inner chamber, the original gas of filter membrane inner chamber is only had to be extruded in discharging tube from discharging tube opening part, form gas-liquid separation, gas is discharged in advance through discharging tube, bubble is not had to produce in liquid, first dropping funnel is extruded without the need to medical personnel, go with wasting time and energy again to discharge bubble, both ensure that the safety of patient, also mitigate the working strength of medical personnel.
3, when liquid reaches the top of only liquid exhaust apparatus, air cannot enter the steam vent at exhaustor top again, and in dropping funnel, liquid arrives standard liquid level automatically, no longer continues to rise, prevents liquid from filling whole dropping funnel; As when operation lack of standardization, liquid fills dropping funnel, as long as dropping funnel top feed tube is ended, dropping funnel internal liquid can flow to the top of only liquid exhaust apparatus automatically, avoid and open the intrusion that medicine-pouring pipe carries out lowering liquid level and antibacterial in the air that brings, alleviate the tedious work of medical personnel, improve work efficiency.
4, when the liquid in dropping funnel is to low spot, gas cannot enter filter membrane inner chamber by hydrophilic film, avoids gas and enters infusion pipeline, reaches automatic liquid-stopping function, ensure that the safety of transfusion.
5, dropping funnel lid is positioned at the lower end of dropping funnel, and dropping funnel and feed tube are integrated, and ensure that the concentricity of feed tube and dropping funnel inwall, because assembling the inclination causing feed tube, can not can reach liquid and dripping accurately heavily, ensure that transfusion precision.
6, because hydrophilic filter film extends to bottom dropping funnel and discharging tube is suitable for reading, the medicinal liquid in dropping funnel can be made all to flow only, not residual, save the waste of medicinal liquid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that schematic diagram is cutd open in side of the present invention.
Fig. 3 is top view of the present invention.
Fig. 4 stops liquid exhaust apparatus top cross-sectional view.
Wherein: 1-dropping funnel, 2-dropping funnel lid, 3-stops liquid exhaust apparatus, 4-feed tube, 5-slot, 6-dropping funnel lid discharging tube, 7-dropping funnel lid exhaustor, 8-filter membrane inner chamber, 9-medicine-pouring pipe, 10-discharge duct, 11-steam vent, 12-exhaust membrane, 13-filter membrane inner chamber discharging tube, 14-opening, 15-hydrophilic filter film.
Detailed description of the invention
Embodiment: as Figure 1-3, a kind of with automatic liquid-stopping, self-bleeding filtration dropping funnel, the feed tube 4 and medicine-pouring pipe 9 that are communicated with dropping funnel 1 are installed in the upper end of its dropping funnel 1, medicine-pouring pipe 9, feed tube 4 are one-body molded with dropping funnel 1, ensure that the concentricity of feed tube and dropping funnel inwall, because assembling the inclination causing feed tube, can not can reach liquid and dripping accurately heavily, ensure that transfusion precision, dropping funnel lid 2 is provided with slot 5, dropping funnel 1 is inserted in the slot 5 of dropping funnel lid 2, dropping funnel lid discharging tube 6 and dropping funnel lid exhaustor 7 are set bottom dropping funnel lid 2, dropping funnel lid 2 is positioned at the below of dropping funnel 1, fix with dropping funnel 1 plug-in mounting, avoid feed tube and dropping funnel inwall decentraction that above original dropping funnel, buckle closure easily occurs, impact is dripped heavy, cannot ensure precision of infusing, only liquid exhaust apparatus 3 is installed in dropping funnel 1, only liquid exhaust apparatus 3 comprises hydrophilic filter film 15, filter membrane inner chamber 8 and discharge duct 10, the opening surface of filter membrane inner chamber 8 is towards side, filter membrane inner chamber 8 is vertical with dropping funnel lid 2 to be arranged, the height of filter membrane inner chamber is 35mm, filter membrane inner chamber discharging tube 13 is provided with in filter membrane inner chamber 8, be communicated with the dropping funnel lid discharging tube 6 on dropping funnel lid 2, the two side of filter membrane inner chamber discharging tube 13 is provided with through opening 14 from top to bottom relatively, aperture slots is 0.1-1.5mm, after liquid enters filter membrane inner chamber, because the aperture slots of filter membrane inner chamber discharging tube two side is very little, the surface tension of liquid, make liquid so far cannot by this opening, along with liquid progressively enters filter membrane inner chamber, the original gas of filter membrane inner chamber is only had to be extruded in discharging tube from discharging tube opening part, form gas-liquid separation, gas is discharged in advance through discharging tube, bubble is not had to produce in liquid, first dropping funnel is extruded without the need to medical personnel, go with wasting time and energy again to discharge bubble, both ensure that the safety of patient, also mitigate the working strength of medical personnel, filter membrane inner chamber 8 lateral surface relative with filter membrane inner chamber 8 opening surface arranges discharge duct 10, and the top of discharge duct 10 is provided with steam vent 11, steam vent 11 place welding exhaust membrane 12, and the end of discharge duct 10 is communicated with dropping funnel lid exhaustor 7, the opening surface of filter membrane inner chamber welds the hydrophilic filter film 15 identical with opening surface area, filter membrane inner chamber discharging tube 13 and discharge duct 10 are fixed with dropping funnel lid discharging tube 6 and dropping funnel lid exhaustor 7 plug-in mounting, because hydrophilic filter film 15 to extend to bottom dropping funnel 1 and dropping funnel lid discharging tube 6 suitable for reading, the medicinal liquid in dropping funnel 1 can be made all to flow only, not residual, save the waste of medicinal liquid.
Operation principle:
During transfusion, medicinal liquid enters dropping funnel from feed tube, enters intracavity in filter membrane through hydrophilic filter film, in filter membrane, the medicinal liquid of intracavity constantly enters, gas is extruded in the opening of small gaps, discharges from dropping funnel lid discharging tube, and medicinal liquid cannot pass through small gaps opening because of surface tension of liquid effect; When liquid level rises to the top-submerged steam vent of only liquid exhaust apparatus, in dropping funnel, pressure is greater than surface tension of liquid, and medicinal liquid enters small gaps opening and discharges from filter membrane inner chamber discharging tube to dropping funnel lid discharging tube.
When liquid reaches the top of only liquid exhaust apparatus, air cannot enter top vent hole again, and in dropping funnel, liquid arrives standard liquid level automatically, does not rise, prevent liquid from filling whole dropping funnel in continuation.
When the liquid in dropping funnel is to low spot, gas cannot enter filter membrane inner chamber by hydrophilic filter film, avoids gas and enters infusion pipeline, reaches automatic liquid-stopping function, does not worry running into gas in infusion pipeline.
Due to hydrophilic film to extend to bottom dropping funnel and discharging tube suitable for reading, the medicinal liquid in dropping funnel can be made all to flow only, medicinal liquid be totally lost after dropping funnel inner liquid medicine do not remain, avoid the waste of medicinal liquid, alleviate the burden of patient.
Feed tube, dropping funnel are integrated, and dropping funnel lid is arranged on the lower end of dropping funnel, need not adjust the angle of dropper, can reach liquid and drip accurately heavily, ensure that transfusion precision.
Claims (5)
1. one kind with automatic liquid-stopping, self-bleeding filtration dropping funnel, it is characterized in that: it comprises dropping funnel, dropping funnel lid and stops liquid exhaust apparatus, the feed tube be communicated with dropping funnel is installed in the upper end of described dropping funnel, dropping funnel lid is installed in the lower end of dropping funnel, dropping funnel lid discharging tube and dropping funnel lid exhaustor are set bottom dropping funnel lid, only liquid exhaust apparatus is installed in dropping funnel; Described only liquid exhaust apparatus is arranged on dropping funnel and covers, it comprises hydrophilic filter film, filter membrane inner chamber and discharge duct, the opening surface of filter membrane inner chamber is towards side, filter membrane inner chamber is vertical with dropping funnel lid to be arranged, in filter membrane, intracavity is provided with filter membrane inner chamber discharging tube, filter membrane inner chamber discharging tube is communicated with dropping funnel lid discharging tube, and the two side of filter membrane inner chamber discharging tube is provided with through opening from top to bottom; The arranged outside discharge duct of filter membrane inner chamber, the top of discharge duct is provided with steam vent, and exhaust membrane is fixed at steam vent place, and the end of discharge duct is communicated with dropping funnel lid exhaustor; The opening surface of filter membrane inner chamber fixes hydrophilic filter film.
2. one according to claim 1 is with automatic liquid-stopping, self-bleeding filtration dropping funnel, and it is characterized in that: the upper end of described dropping funnel also arranges medicine-pouring pipe, medicine-pouring pipe, feed tube and dropping funnel are one-body molded, and are communicated with in dropping funnel respectively.
3. one according to claim 1 is with automatic liquid-stopping, self-bleeding filtration dropping funnel, it is characterized in that: described dropping funnel is covered with slot, and dropping funnel is inserted in the slot of dropping funnel lid, fixes with dropping funnel lid.
4. one according to claim 1 is with automatic liquid-stopping, self-bleeding filtration dropping funnel, it is characterized in that: the height of described filter membrane inner chamber is 5-50mm.
5. one according to claim 1 is with automatic liquid-stopping, self-bleeding filtration dropping funnel, it is characterized in that: the gap of described discharging tube two side opening is 0.1-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735990.8A CN105194768B (en) | 2015-11-02 | 2015-11-02 | With automatic liquid-stopping, self-bleeding filtering dropping funnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735990.8A CN105194768B (en) | 2015-11-02 | 2015-11-02 | With automatic liquid-stopping, self-bleeding filtering dropping funnel |
Publications (2)
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| CN105194768A true CN105194768A (en) | 2015-12-30 |
| CN105194768B CN105194768B (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510735990.8A Active CN105194768B (en) | 2015-11-02 | 2015-11-02 | With automatic liquid-stopping, self-bleeding filtering dropping funnel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200134647A (en) * | 2019-05-23 | 2020-12-02 | 위더스 주식회사 | Medical drip chamber |
| KR102284875B1 (en) * | 2021-04-05 | 2021-08-02 | 주식회사 켄루 | Auto drip chamber |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10151198A (en) * | 1996-11-25 | 1998-06-09 | Jms Co Ltd | Infusion filter |
| CN102363058A (en) * | 2011-10-27 | 2012-02-29 | 李林风 | Automatic exhausting and liquid stopping multiple-effect infusion set |
| CN102908696A (en) * | 2011-08-01 | 2013-02-06 | 谢世庚 | Backflow liquid medicine filter for preventing blood return |
| CN104138629A (en) * | 2013-05-22 | 2014-11-12 | 山东威高集团医用高分子制品股份有限公司 | Automatic exhausting and automatic liquid stopping device |
| CN205127024U (en) * | 2015-11-02 | 2016-04-06 | 天津哈娜好兴达医用制品有限公司 | Filter dropping funnel with automatic liquid -stopping , self -bleeding |
-
2015
- 2015-11-02 CN CN201510735990.8A patent/CN105194768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10151198A (en) * | 1996-11-25 | 1998-06-09 | Jms Co Ltd | Infusion filter |
| CN102908696A (en) * | 2011-08-01 | 2013-02-06 | 谢世庚 | Backflow liquid medicine filter for preventing blood return |
| CN102363058A (en) * | 2011-10-27 | 2012-02-29 | 李林风 | Automatic exhausting and liquid stopping multiple-effect infusion set |
| CN104138629A (en) * | 2013-05-22 | 2014-11-12 | 山东威高集团医用高分子制品股份有限公司 | Automatic exhausting and automatic liquid stopping device |
| CN205127024U (en) * | 2015-11-02 | 2016-04-06 | 天津哈娜好兴达医用制品有限公司 | Filter dropping funnel with automatic liquid -stopping , self -bleeding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200134647A (en) * | 2019-05-23 | 2020-12-02 | 위더스 주식회사 | Medical drip chamber |
| KR102240665B1 (en) * | 2019-05-23 | 2021-04-15 | 위더스 주식회사 | Medical drip chamber |
| KR102284875B1 (en) * | 2021-04-05 | 2021-08-02 | 주식회사 켄루 | Auto drip chamber |
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| Publication number | Publication date |
|---|---|
| CN105194768B (en) | 2019-05-03 |
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Address after: No. 4, seven Jing Road, Dongli Development Zone, Tianjin, Tianjin 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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