CN107693884B - Integrated drip chamber - Google Patents
Integrated drip chamber Download PDFInfo
- Publication number
- CN107693884B CN107693884B CN201710850610.4A CN201710850610A CN107693884B CN 107693884 B CN107693884 B CN 107693884B CN 201710850610 A CN201710850610 A CN 201710850610A CN 107693884 B CN107693884 B CN 107693884B
- Authority
- CN
- China
- Prior art keywords
- dropping funnel
- drip chamber
- wall
- annular groove
- mounting flange
- 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.)
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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
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M5/38—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 using hydrophilic or hydrophobic filters
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
-
- 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
- A61M2205/7527—General characteristics of the apparatus with filters liquophilic, hydrophilic
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (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)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses an integrated dropping funnel, which comprises an upper dropping funnel and a lower dropping funnel, wherein a mounting convex ring is outwards extended from the bottom of the outer wall of the upper dropping funnel, and a circular inserting sheet and an annular groove arranged on the outer ring of the circular inserting sheet are extended from the bottom surface of the mounting convex ring; a plurality of support ribs are arranged in the annular groove; an air hole is communicated between the outer peripheral surface of the mounting convex ring and the inner wall of the upper dropping funnel, and an air filtering membrane is arranged in the air hole; the outer wall top of lower drip chamber outwards extends has the mounting flange, the mounting flange matches and embeds in the ring channel and the terminal surface of mounting flange supports on a plurality of support ribs, circular inserted sheet interference fit inserts the inner wall of establishing at lower drip chamber. The integrated dropping funnel integrates the functions of plastic needle, dropping funnel, filtering and the like, has simpler structure, can realize the self-exhausting function, and has more firm connection between the upper dropping funnel and the lower dropping funnel.
Description
Technical Field
The invention relates to an integrated dropping funnel.
Background
The infusion set is a common medical consumable, and a channel between a vein and liquid medicine is established for intravenous infusion through aseptic treatment.
The infusion apparatus is generally formed by connecting eight parts of a vein needle or an injection needle, a needle head protective cap, an infusion hose, a liquid medicine filter, a flow speed regulator, a drip chamber, a bottle stopper puncture outfit, an air filter and the like, when the infusion apparatus is used, the drip chamber is manually squeezed to guide liquid medicine into the drip chamber from an infusion bottle, and in addition, if bubbles in the infusion tube cannot be exhausted, the bubbles can enter a patient along with the liquid medicine, so that the health of the patient is dangerous.
Chinese patent publication No. CN 103230637B discloses a puncture outfit drip chamber, including last drip chamber and lower drip chamber, the upper portion of going up the drip chamber has set firmly cylindrical puncture outfit, and it is equipped with the ring channel to go up the drip chamber bottom, goes up drip chamber and lower drip chamber and passes through the buckle to be connected, and the gasket is compressed tightly in the ring channel by lower drip chamber, is equipped with the through-hole in the centre of gasket, and the medicine through-film sets up in the upper surface of gasket, and the downcomer is equipped with the exhaust hole. The puncture outfit dropping funnel with the structure enables the inner cavity between the upper dropping funnel and the medicine passing film to form positive air pressure, and finally the medicine liquid enters the lower dropping funnel, so that air in the transfusion device can be automatically discharged, and the medicine passing film is arranged, so that automatic liquid stopping after transfusion is finished is realized; adopt split type dropping funnel, integrate into a subassembly with a plurality of parts in the traditional structure, reduced the processing degree of difficulty, reduced processing cost and raw materials cost. However, the drip chamber has the advantages of complex design structure, high overall manufacturing cost, high technological requirement of the designed medicine passing film, large required medicine passing film area, and direct influence on the normal use of the drip chamber due to leakage of liquid medicine outside the drip chamber when slight leakage occurs in a gap between the upper drip chamber and the lower drip chamber.
Disclosure of Invention
The invention aims to solve the technical problem of providing an integrated drip chamber, which can reduce the production cost of the drip chamber, realize the functions of automatically discharging air in the drip chamber, automatically discharging liquid, automatically stopping liquid and the like, and ensure that the normal use of the drip chamber is not influenced by slight leakage of the drip chamber.
In order to solve the technical problems, the technical solution of the integrated dropping funnel of the invention is as follows:
the integrated dropping funnel comprises an upper dropping funnel and a lower dropping funnel, wherein a plastic needle is integrally formed at the top of the upper dropping funnel, the bottom of the plastic needle extends into the upper dropping funnel and a dropper is formed in the upper dropping funnel, a mounting convex ring outwards extends from the bottom of the outer wall of the upper dropping funnel, and a circular inserting sheet and an annular groove arranged on the outer ring of the circular inserting sheet extend from the bottom surface of the mounting convex ring; a plurality of support ribs are arranged in the annular groove; an air hole is communicated between the outer peripheral surface of the mounting convex ring and the inner wall of the upper dropping funnel, and an air filtering membrane is arranged in the air hole;
the top of the outer wall of the lower dropping funnel is outwards extended with a mounting flange, the mounting flange is embedded in the annular groove in a matching manner, the end faces of the mounting flange are abutted against a plurality of support ribs, and the circular inserting sheets are inserted into the inner wall of the lower dropping funnel in an interference fit manner; one section of the lower dropping funnel is in a cylindrical structure in matched butt joint with the round inserting piece, and the rest part is in a truncated cone structure; a lower guide pipe is arranged at the bottom of the lower dropping funnel; a bubble filtering membrane is arranged in the lower dropping funnel.
The air hole is matched in one of the support ribs.
The height of the upper dropping funnel is 2/3 of the height of the lower dropping funnel.
And a containing space is formed among the top surface of the mounting flange, the annular groove and the two adjacent support ribs.
The invention has the following technical effects:
compared with the prior art, the integrated drip chamber integrates the functions of the plastic needle, the drip chamber and the bubble filter, so that the overall manufacturing cost of the infusion apparatus is reduced;
compared with the prior art, the integrated drip chamber has the advantages that the air hole is matched and designed in one support rib, so that the diameter size of the air hole can be ensured to be enough to realize air inlet and outlet;
compared with the prior art, the integrated drip chamber has the advantages that the support ribs are arranged in the annular groove, so that the integral strength of the installation convex ring is ensured, in addition, the processing size of the installation convex ring can be reduced during processing, and the production cost is reduced;
compared with the prior art, the integrated dropping funnel is fastened by interference fit between the upper dropping funnel and the lower dropping funnel, is convenient to install, and can be coated with glue so that the connection is firmer.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a cross-sectional view of an integrated drip chamber of the present invention;
FIG. 2 is a cross-sectional view of the upper bucket of the present invention;
fig. 3 is a cross-sectional view of the drop funnel of the present invention.
Detailed Description
Referring to fig. 1 to 3, the present invention provides an integrated drip chamber, comprising an upper drip chamber 1 and a lower drip chamber 2, wherein a plastic needle 3 is integrally formed at the top of the upper drip chamber 1, a liquid medicine flow passage 4 and a gas flow passage 5 which are not communicated with each other are arranged in the plastic needle 3, and a gas plug 6 is arranged in the gas flow passage 5; the bottom of the plastic needle 3 extends into the upper dropping funnel 1, a dropper 7 is formed in the upper dropping funnel 1, a mounting convex ring 8 extends outwards from the bottom of the outer wall of the upper dropping funnel 1, and a circular inserting sheet 11 and an annular groove 10 arranged on the outer ring of the circular inserting sheet 11 extend from the bottom surface of the mounting convex ring 8; a plurality of support ribs 12 are arranged in the annular groove 10; an air hole 13 is communicated between the outer peripheral surface of the mounting convex ring 8 and the inner wall of the upper dropping funnel 1, and an air filtering membrane is arranged in the air hole 13;
the top of the outer wall of the lower dropping funnel 2 is outwards extended with a mounting flange 14, the mounting flange 14 is embedded in the annular groove 10 in a matching way, the end faces of the mounting flange 14 are abutted against the support ribs 12, and the circular inserting sheets 11 are inserted into the inner wall of the lower dropping funnel 2 in an interference fit way; one section of the lower dropping funnel 2 matched and butted with the round inserting piece 11 is of a cylindrical structure 15, and the rest part is of a truncated cone-shaped structure 16; the bottom of the lower dropping funnel 2 is provided with a lower conduit 17; a bubble filtering membrane 18 is arranged in the lower dropping funnel 2.
The air hole 13 is matched in one of the support ribs 12.
The height of the upper dropping funnel 1 is 2/3 of the height of the lower dropping funnel 2.
The top surface of the mounting flange 14, the annular groove 10 and the adjacent two support ribs 12 jointly form a containing space 19.
The working principle of the integrated dropping funnel of the invention is described as follows:
when the liquid medicine injection device is used, liquid medicine enters a space formed by the upper dropping funnel 1 and the lower dropping funnel 2 from the liquid medicine flow passage 4 of the plastic needle 3, air in the dropping funnel is discharged from the air hole 13 along with the continuous rising of the liquid level of the liquid medicine, when the liquid level rises to the position of the air hole 13 and covers the air hole 13, positive air pressure is formed between the upper dropping funnel 1 and the liquid level according to the principle that an air filtering film only passes through the air and does not pass through the liquid, the liquid medicine is pressed towards the air bubble filtering film 18 by the positive air pressure, and the liquid medicine is downwards infiltrated from the air bubble filtering film 18 and is discharged from the lower guide pipe 17.
According to the integrated dropping funnel, the upper dropping funnel 1 and the lower dropping funnel 2 are sealed by the circular inserting piece 11, so that the structure is simple, the sealing effect is good, and a through liquid storage space is formed between the upper dropping funnel 1 and the lower dropping funnel 2; the air holes 13 are designed in the installation convex ring 8 of the upper dropping funnel 1, so that the path distance of the air holes 13 can be ensured, an air filtering membrane is convenient to install, and the air holes 13 are simultaneously matched in the support ribs 12, so that the diameter of the air holes 13 is ensured, and the exhaust performance is improved;
the top surface of the mounting flange 14, the annular groove 10 and the adjacent two support ribs 12 jointly form a containing space 19, the containing space 19 is provided with a plurality of containing spaces 19, and when slight leakage occurs between the upper dropping funnel 1 and the lower dropping funnel 2, the containing spaces 19 can contain liquid with a certain volume to prevent liquid medicine from leaking outside the dropping funnel.
The foregoing describes in detail an integrated drip chamber provided by embodiments of the present invention, and specific examples are applied herein to illustrate principles and embodiments of the present invention, where the foregoing examples are only for aiding in understanding of the technical solutions disclosed in the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (2)
1. The utility model provides an integrated form drip chamber, includes drip chamber and lower drip chamber, the top integrated into one piece of going up the drip chamber is equipped with moulds the needle, moulds the needle bottom and extends into in the last drip chamber and have formed the burette in last drip chamber, its characterized in that: the bottom of the outer wall of the upper dropping funnel is outwards extended to form a mounting convex ring, and the bottom surface of the mounting convex ring is extended to form a circular inserting sheet and an annular groove arranged on the outer ring of the circular inserting sheet; a plurality of support ribs are arranged in the annular groove; an air hole is communicated between the outer peripheral surface of the mounting convex ring and the inner wall of the upper dropping funnel, and an air filtering membrane is arranged in the air hole;
the top of the outer wall of the lower dropping funnel is outwards extended with a mounting flange, the mounting flange is embedded in the annular groove in a matching manner, the end faces of the mounting flange are abutted against a plurality of support ribs, and the circular inserting sheets are inserted into the inner wall of the lower dropping funnel in an interference fit manner; one section of the lower dropping funnel is in a cylindrical structure in matched butt joint with the round inserting piece, and the rest part is in a truncated cone structure; a lower guide pipe is arranged at the bottom of the lower dropping funnel; a bubble filtering membrane is arranged in the lower dropping funnel; the air hole is matched in one of the support ribs; and a containing space is formed among the top surface of the mounting flange, the annular groove and the two adjacent support ribs.
2. An integrated drip chamber as in claim 1 wherein: the height of the upper dropping funnel is 2/3 of the height of the lower dropping funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850610.4A CN107693884B (en) | 2017-09-20 | 2017-09-20 | Integrated drip chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850610.4A CN107693884B (en) | 2017-09-20 | 2017-09-20 | Integrated drip chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107693884A CN107693884A (en) | 2018-02-16 |
| CN107693884B true CN107693884B (en) | 2023-09-26 |
Family
ID=61171629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710850610.4A Active CN107693884B (en) | 2017-09-20 | 2017-09-20 | Integrated drip chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107693884B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2431946A1 (en) * | 1974-07-03 | 1976-01-22 | Transcodan | Drip chamber for infusion or transfusion devices - has interconnecting body with interlocking gasket pieces |
| JPH10248938A (en) * | 1997-03-10 | 1998-09-22 | Dai Ichi Seiyaku Co Ltd | Drip set |
| JP2001275840A (en) * | 2000-03-29 | 2001-10-09 | Minoru Yukishige | Coffee dripper |
| JP2009219798A (en) * | 2008-03-18 | 2009-10-01 | Jms Co Ltd | Drip tube and infusion set |
| CN201643243U (en) * | 2010-04-06 | 2010-11-24 | 郑万章 | Safety valve and liquid-blood transfusion device provided with same |
| CN101940807A (en) * | 2010-09-02 | 2011-01-12 | 柯丽红 | Automatic exhaust medicinal intravenous infusion set |
| CN202314652U (en) * | 2011-10-28 | 2012-07-11 | 魏安 | Medical infusion apparatus for automatically exhausting and preventing blood from flowing back |
| CN202342562U (en) * | 2011-10-29 | 2012-07-25 | 徐小滨 | Automatically exhausting medical intravenous infusion set |
| CN102614558A (en) * | 2012-03-01 | 2012-08-01 | 戎静华 | Infusion apparatus capable of automatically exhausting due to liquid stop by floating plug |
| CN103230636A (en) * | 2013-05-19 | 2013-08-07 | 江西科伦医疗器械制造有限公司 | Safety dripping bucket of puncture device |
| CN204446801U (en) * | 2015-03-04 | 2015-07-08 | 江西丽华鑫朗药业科技有限公司 | A kind of Anti-bubble automatic liquid-stopping multifunctional transfusion system |
| CN204709506U (en) * | 2014-12-26 | 2015-10-21 | 北京伏尔特技术有限公司 | A kind of stop liquid from aerofluxus can liquid transfusion device only |
| JP2016179025A (en) * | 2015-03-24 | 2016-10-13 | 国立研究開発法人国立がん研究センター | Liquid drug administering device |
| CN208726417U (en) * | 2017-09-20 | 2019-04-12 | 浙江康康医疗器械股份有限公司 | A kind of integrated-type dropping funnel |
-
2017
- 2017-09-20 CN CN201710850610.4A patent/CN107693884B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2431946A1 (en) * | 1974-07-03 | 1976-01-22 | Transcodan | Drip chamber for infusion or transfusion devices - has interconnecting body with interlocking gasket pieces |
| JPH10248938A (en) * | 1997-03-10 | 1998-09-22 | Dai Ichi Seiyaku Co Ltd | Drip set |
| JP2001275840A (en) * | 2000-03-29 | 2001-10-09 | Minoru Yukishige | Coffee dripper |
| JP2009219798A (en) * | 2008-03-18 | 2009-10-01 | Jms Co Ltd | Drip tube and infusion set |
| CN201643243U (en) * | 2010-04-06 | 2010-11-24 | 郑万章 | Safety valve and liquid-blood transfusion device provided with same |
| CN101940807A (en) * | 2010-09-02 | 2011-01-12 | 柯丽红 | Automatic exhaust medicinal intravenous infusion set |
| CN202314652U (en) * | 2011-10-28 | 2012-07-11 | 魏安 | Medical infusion apparatus for automatically exhausting and preventing blood from flowing back |
| CN202342562U (en) * | 2011-10-29 | 2012-07-25 | 徐小滨 | Automatically exhausting medical intravenous infusion set |
| CN102614558A (en) * | 2012-03-01 | 2012-08-01 | 戎静华 | Infusion apparatus capable of automatically exhausting due to liquid stop by floating plug |
| CN103230636A (en) * | 2013-05-19 | 2013-08-07 | 江西科伦医疗器械制造有限公司 | Safety dripping bucket of puncture device |
| CN204709506U (en) * | 2014-12-26 | 2015-10-21 | 北京伏尔特技术有限公司 | A kind of stop liquid from aerofluxus can liquid transfusion device only |
| CN204446801U (en) * | 2015-03-04 | 2015-07-08 | 江西丽华鑫朗药业科技有限公司 | A kind of Anti-bubble automatic liquid-stopping multifunctional transfusion system |
| JP2016179025A (en) * | 2015-03-24 | 2016-10-13 | 国立研究開発法人国立がん研究センター | Liquid drug administering device |
| CN208726417U (en) * | 2017-09-20 | 2019-04-12 | 浙江康康医疗器械股份有限公司 | A kind of integrated-type dropping funnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107693884A (en) | 2018-02-16 |
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Address after: 317605 Longwang Industrial Zone, Chumen Town, Yuhuan County, Taizhou City, Zhejiang Province Applicant after: ZHEJIANG KANGKANG MEDICAL DEVICES Co.,Ltd. Address before: 317605 Longwang Industrial Zone, Chumen Town, Yuhuan County, Taizhou City, Zhejiang Province Applicant before: Zhejiang KangKang Medical Devices Co.,Ltd. |
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