CN113786554B - Safety valve assembly suitable for micro-dose infusion, micro-dose secretion pump and insulin pump - Google Patents
Safety valve assembly suitable for micro-dose infusion, micro-dose secretion pump and insulin pump Download PDFInfo
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- CN113786554B CN113786554B CN202111136275.4A CN202111136275A CN113786554B CN 113786554 B CN113786554 B CN 113786554B CN 202111136275 A CN202111136275 A CN 202111136275A CN 113786554 B CN113786554 B CN 113786554B
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- Prior art keywords
- flexible body
- medium
- pipeline
- safety valve
- valve assembly
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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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
-
- 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
- A61M5/142—Pressure infusion, e.g. using pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Pulmonology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a safety valve component suitable for micro-dose infusion, a micro-dose secretion pump and an insulin pump, comprising: the flexible body is arranged on the valve body; the valve body is connected with the medium output equipment, the flexible body is connected between the valve body and the medium output equipment, and the needle outlet unit is connected with the valve body; the medium output device is provided with a medium inlet and a medium outlet and a flexible body driving port, a first pipeline is arranged in the valve body, the input end of the first pipeline is connected with the medium inlet and the medium outlet, the output end of the first pipeline is positioned at one side of the flexible body, and the flexible body driving port is positioned at the other side of the flexible body; the sectional area of the medium inlet and the medium outlet is smaller than the sectional area of the flexible body driving opening. The invention can solve the problem that the medium output device outputs too fast injection medium in the failure process, and under certain application conditions, such as insulin or medicament injection, the excessive injection can cause life hazard.
Description
Technical Field
The invention relates to the field of injection equipment, in particular to a safety valve assembly suitable for micro-dose infusion, a micro-dose secretion pump and an insulin pump.
Background
The insulin pump consists of a pump, a small injector and an infusion tube connected with the small injector. The small syringe can contain 3 milliliters of insulin at most, after the syringe is filled into the pump, the guide needle at the front end of the connected infusion tube is pricked into the subcutaneous part (conventional abdominal wall) of a patient by using the needle injector, and then the spiral motor of the insulin pump is driven by a battery to push the piston of the small syringe, so that the insulin is infused into the body. The insulin pump is basically used for simulating secretion of human pancreas for infusion, and continuously injecting insulin into the subcutaneous of a user according to the dosage required by the human body, so that the blood sugar is kept stable throughout the day, and the purpose of controlling diabetes is achieved.
Patent document CN110721364a discloses a quantitative timed insulin administration pump which can be fixed to the body of a patient and can inject a fixed amount of insulin at a fixed time to automatically inject insulin. It can be seen that insulin-like media require infusion in strict timed, quantitative requirements that are otherwise liable to harm the life and health of the user. The patent document adopts MCU to control the opening and closing time of the air pump, thereby achieving the purposes of timing and quantification.
However, although the control of the on-off time of the air pump by the MCU is an effective implementation scheme, the air pressure in the air pump is variable (gradually decaying), and the air pressure is larger when the air pump is used just before, so that more air is output, the insulin speed of the insulin pump infusion is too fast and exceeds the normal insulin secretion level of the human body, and bad results are caused, so that it is necessary to design a safety valve for preventing the infusion speed from being too fast.
Disclosure of Invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a safety valve assembly, a microdose secretion pump and an insulin pump suitable for microdose infusion.
According to the present invention there is provided a safety valve assembly for micro-dose infusion comprising: a valve body 301, a flexible body 304, and a needle unit 400;
the valve body 301 is connected with a medium output device, the flexible body 304 is connected between the valve body 301 and the medium output device, and the needle outlet unit 400 is connected with the valve body 301;
the medium output device is provided with a medium inlet and a medium outlet and a flexible body driving port, a first pipeline is arranged in the valve body 301, the input end of the first pipeline is connected with the medium inlet and the medium outlet, the output end of the first pipeline is positioned on one side of the flexible body 304, and the flexible body driving port is positioned on the other side of the flexible body 304;
the sectional area of the medium inlet and outlet is smaller than the sectional area of the flexible body driving opening;
the flexible body 304 deforms according to the pressure applied to both sides;
when the medium output by the medium output device exceeds a preset flow rate, the pressure applied to the other side of the flexible body 304 is greater than the pressure applied to the one side, so that the flexible body 304 deforms towards the one side and blocks the first pipeline;
the flexible body 304 does not block the first conduit when the medium output by the medium output device does not exceed a preset flow rate.
Preferably, a second pipeline is further arranged inside the valve body 301;
the input end of the second pipeline is located at the side of the flexible body 304, and the output end of the second pipeline is connected to the needle outlet unit 400.
Preferably, a sealing element 303 is arranged around the connection of the input end of the first line to the output end of the medium output device.
Preferably, the valve body 301 is provided with an injection port 302, and the injection port 302 is connected with the medium inlet and outlet.
Preferably, a check valve or a plug is detachably connected to the injection port 302.
Preferably, the needle outlet unit 400 includes a needle.
Preferably, the edge position of the flexible body 304 is sealingly connected between the valve body 301 and the medium output device.
The micro-dose secretion pump provided by the invention comprises the safety valve assembly suitable for micro-dose infusion.
According to the invention there is provided an insulin pump comprising the safety valve assembly adapted for micro-dose infusion.
Compared with the prior art, the invention has the following beneficial effects:
the invention can solve the problem that the medium output device outputs too fast injection medium in the failure process, and under certain application conditions, such as insulin or medicament injection, the excessive injection can cause life hazard.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of a normal rate infusion state;
FIG. 3 is a schematic diagram of an overspeed infusion state.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
As shown in fig. 1, the safety valve assembly 300 for micro-dose infusion according to the present invention mainly includes: a valve body 301, a flexible body 304 and a needle unit 400. The valve body 301 is connected to a medium output device, the flexible body 304 is connected between the valve body 301 and the medium output device, and the needle outlet unit 400 is connected to the valve body 301. The needle outlet unit 400 includes a needle, which may be a metal needle or a flexible tube needle, etc., and the present invention is not limited thereto. In the present invention, the flexible body 304 may include a film, and the material of the film may be a resilient material such as silicone.
The cylinder body 112 of the medium output device is provided with a medium inlet and outlet 305 and a flexible body driving opening 306, a first pipeline is arranged in the valve body 301, the input end of the first pipeline is connected with the medium inlet and outlet 305, the output end of the first pipeline is positioned on one side of the flexible body 304, and the flexible body driving opening 306 is positioned on the other side of the flexible body 304. The sectional area of the medium inlet and outlet is smaller than that of the flexible body driving opening.
The valve body 301 is further provided with a second pipeline, an input end of the second pipeline is located at one side of the flexible body 304, and an output end of the second pipeline is connected with the needle outlet unit 400.
The working principle of the invention is as follows:
as shown in fig. 2, when the flow rate of the medium output from the medium output device is lower than the preset flow rate, the medium enters the first pipeline through the medium inlet and outlet 305, then enters the side of the flexible body 304, and presses the flexible body from left to right. While the medium entering the flexible body drive port 306 presses the flexible body from right to left. At this time, the flexible body basically does not deform, or deformation is very small, and the medium output by the medium inlet and outlet 305 can be normally output through the second pipeline.
As shown in fig. 3, when the flow rate of the medium output by the medium output device suddenly increases to exceed the preset flow rate, the cross-sectional area of the flexible body driving opening 306 on the right side of the flexible body 304 is larger than the cross-sectional area of the medium inlet and outlet, so that the pressure on the right side of the flexible body is larger than the pressure on the left side, the flexible body deforms leftwards, and the whole body is attached to the valve body 301 to block the output end of the first pipeline and the input end of the second pipeline, so that the medium in the first pipeline cannot be output or is output in a decelerating manner, thereby protecting the life safety of a user.
In order to increase the sealing effect of the whole assembly, a sealing element 303 is arranged around the connection part of the input end of the first pipeline and the output end of the medium output device, and the edge position of the flexible body 304 is in sealing connection between the valve body 301 and the medium output device.
Since it is difficult to directly suck the medium to be infused from the outside after the safety valve assembly is installed, the valve body 301 is provided with the injection port 302, the injection port 302 is connected with the medium inlet and outlet, the check valve or the blocking member is detachably connected in the injection port 302, and thus the medium to be infused is inputted into the cylinder 112 through the injection port 302.
The invention can be applied to various micro-dose secretion pumps for micro-dose infusion, such as insulin pumps and the like.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (9)
1. A safety valve assembly for microdose infusion comprising: a valve body (301), a flexible body (304) and a needle outlet unit (400);
the valve body (301) is connected with a medium output device, the flexible body (304) is connected between the valve body (301) and the medium output device, and the needle outlet unit (400) is connected with the valve body (301);
the medium output device is provided with a medium inlet and outlet (305) and a flexible body driving opening (306), a first pipeline is arranged in the valve body (301), the input end of the first pipeline is connected with the medium inlet and outlet, the output end of the first pipeline is positioned at one side of the flexible body (304) and faces one side of the flexible body (304), so that medium flowing out of the first pipeline directly acts on one side of the flexible body (304), and the flexible body driving opening (306) is positioned at the other side of the flexible body (304) and faces the other side of the flexible body (304), so that the medium flowing out of the flexible body driving opening (306) directly acts on the other side of the flexible body (304);
the sectional area of the medium inlet and outlet is smaller than the sectional area of the flexible body driving opening;
the flexible body (304) deforms according to the pressure applied to the two sides;
when the medium output by the medium output device exceeds a preset flow rate, the pressure born by the other side of the flexible body (304) is larger than the pressure born by the one side, so that the flexible body (304) deforms towards the one side and blocks the first pipeline;
when the medium output by the medium output device does not exceed the preset flow rate, the flexible body (304) is not deformed or is very small in deformation and does not block the first pipeline.
2. Safety valve assembly for microdose infusion according to claim 1, characterized in that the valve body (301) is also internally provided with a second conduit;
the input end of the second pipeline is positioned at one side of the flexible body (304), and the output end of the second pipeline is connected with the needle outlet unit (400).
3. Safety valve assembly for micro-infusion according to claim 1, characterized in that a sealing element (303) is arranged around the connection of the input end of the first line with the output end of the medium output device.
4. Safety valve assembly for microdose infusion according to claim 1, characterized in that the valve body (301) is provided with an injection port (302), the injection port (302) being connected to the medium inlet and outlet.
5. Safety valve assembly for microdose infusion according to claim 4, characterized in that a one-way valve or a plug is provided or detachably connected in the injection port (302).
6. Safety valve assembly for micro-dose infusion according to claim 1, characterized in that the needle outlet unit (400) comprises a needle.
7. Safety valve assembly for micro-dose infusion according to claim 1, characterized in that the edge position of the flexible body (304) is sealingly connected between the valve body (301) and the medium output device.
8. A microdose secretion pump comprising a safety valve assembly according to any one of claims 1 to 7 adapted for microdose infusion.
9. An insulin pump comprising a safety valve assembly of any one of claims 1 to 7 adapted for microdose infusion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136275.4A CN113786554B (en) | 2021-09-27 | 2021-09-27 | Safety valve assembly suitable for micro-dose infusion, micro-dose secretion pump and insulin pump |
| PCT/CN2022/110491 WO2023045593A1 (en) | 2021-09-27 | 2022-08-05 | Safety valve assembly suitable for microdose infusion, microdose secretion pump, and insulin pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136275.4A CN113786554B (en) | 2021-09-27 | 2021-09-27 | Safety valve assembly suitable for micro-dose infusion, micro-dose secretion pump and insulin pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113786554A CN113786554A (en) | 2021-12-14 |
| CN113786554B true CN113786554B (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111136275.4A Active CN113786554B (en) | 2021-09-27 | 2021-09-27 | Safety valve assembly suitable for micro-dose infusion, micro-dose secretion pump and insulin pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113786554B (en) |
| WO (1) | WO2023045593A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786554B (en) * | 2021-09-27 | 2023-07-18 | 时新(上海)产品设计有限公司 | Safety valve assembly suitable for micro-dose infusion, micro-dose secretion pump and insulin pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0706004A2 (en) * | 1994-10-07 | 1996-04-10 | Bayer Corporation | Relief valve |
| US5937855A (en) * | 1995-04-21 | 1999-08-17 | Respironics, Inc. | Flow regulating valve in a breathing gas delivery system |
| US6196521B1 (en) * | 1998-08-18 | 2001-03-06 | Precision Valve & Automation, Inc. | Fluid dispensing valve and method |
| JP2006088063A (en) * | 2004-09-24 | 2006-04-06 | Canon Inc | Apparatus for transferring fluid |
| CN101107468A (en) * | 2005-01-25 | 2008-01-16 | 艾罗克林有限公司 | Constant flow regulator device |
| JP2017003004A (en) * | 2015-06-10 | 2017-01-05 | 株式会社ジェイテクト | Flow rate control device |
| CN107355576A (en) * | 2017-09-03 | 2017-11-17 | 郁华 | Voltage stabilization and current stabilization valve |
| CN110878858A (en) * | 2019-12-19 | 2020-03-13 | 深圳哈维生物医疗科技有限公司 | Gas path switch valve and proportional control method thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697002A (en) * | 1971-07-21 | 1972-10-10 | American Standard Inc | Flow control device |
| US4043332A (en) * | 1975-05-14 | 1977-08-23 | Nathan Blumberg | Constant flow rate liquid medicament administering device |
| US4299220A (en) * | 1979-05-03 | 1981-11-10 | The Regents Of The University Of Minnesota | Implantable drug infusion regulator |
| US5520661A (en) * | 1994-07-25 | 1996-05-28 | Baxter International Inc. | Fluid flow regulator |
| DE29610419U1 (en) * | 1996-06-14 | 1996-10-24 | Filtertek, S.A., Plailly | Gravity infusion device for medical infusions |
| US5725017A (en) * | 1997-01-27 | 1998-03-10 | Medtronic, Inc. | In-line pressure check valve for drug-delivery systems |
| US6203523B1 (en) * | 1998-02-02 | 2001-03-20 | Medtronic Inc | Implantable drug infusion device having a flow regulator |
| WO1999053388A1 (en) * | 1998-04-09 | 1999-10-21 | Glenborden Pty. Ltd. | Fluid regulator and improvements related thereto |
| US6830229B2 (en) * | 2001-05-22 | 2004-12-14 | Lockheed Martin Corporation | Two-stage valve suitable as high-flow high-pressure microvalve |
| JP4798987B2 (en) * | 2004-11-25 | 2011-10-19 | サーパス工業株式会社 | Flow control valve |
| EP2153855A1 (en) * | 2008-08-16 | 2010-02-17 | Debiotech S.A. | Passive fluid flow regulator for constant flow rate drug delivery and corresponding drug infusion device |
| CN104415426B (en) * | 2013-08-23 | 2019-04-16 | 席斌 | Disposable insulin infusion pump |
| CN113786554B (en) * | 2021-09-27 | 2023-07-18 | 时新(上海)产品设计有限公司 | Safety valve assembly suitable for micro-dose infusion, micro-dose secretion pump and insulin pump |
-
2021
- 2021-09-27 CN CN202111136275.4A patent/CN113786554B/en active Active
-
2022
- 2022-08-05 WO PCT/CN2022/110491 patent/WO2023045593A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0706004A2 (en) * | 1994-10-07 | 1996-04-10 | Bayer Corporation | Relief valve |
| US5937855A (en) * | 1995-04-21 | 1999-08-17 | Respironics, Inc. | Flow regulating valve in a breathing gas delivery system |
| US6196521B1 (en) * | 1998-08-18 | 2001-03-06 | Precision Valve & Automation, Inc. | Fluid dispensing valve and method |
| JP2006088063A (en) * | 2004-09-24 | 2006-04-06 | Canon Inc | Apparatus for transferring fluid |
| CN101107468A (en) * | 2005-01-25 | 2008-01-16 | 艾罗克林有限公司 | Constant flow regulator device |
| JP2017003004A (en) * | 2015-06-10 | 2017-01-05 | 株式会社ジェイテクト | Flow rate control device |
| CN107355576A (en) * | 2017-09-03 | 2017-11-17 | 郁华 | Voltage stabilization and current stabilization valve |
| CN110878858A (en) * | 2019-12-19 | 2020-03-13 | 深圳哈维生物医疗科技有限公司 | Gas path switch valve and proportional control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023045593A1 (en) | 2023-03-30 |
| CN113786554A (en) | 2021-12-14 |
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