CN108295338B - Be applied to infusion pump's multistage flow control device - Google Patents
Be applied to infusion pump's multistage flow control device Download PDFInfo
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- CN108295338B CN108295338B CN201810212409.8A CN201810212409A CN108295338B CN 108295338 B CN108295338 B CN 108295338B CN 201810212409 A CN201810212409 A CN 201810212409A CN 108295338 B CN108295338 B CN 108295338B
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- side channel
- valve
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- rod
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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
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating 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
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16827—Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
-
- 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to an infusion pump assembly, in particular to a multi-stage flow control device applied to an infusion pump. The invention has the advantages that: the structure is reliable, the control is simple, the micro-quantity accurate control and supply of the medicine are realized, the multi-stage flow control is realized, and the clinical use requirement is met.
Description
Technical Field
The invention relates to an infusion pump assembly, in particular to a multi-stage flow control device applied to an infusion pump.
Background
The infusion pump is also called as an analgesic pump, can keep an immediate and stable concentration of analgesic in blood plasma, can lead a patient to press the drug to quickly enhance the effect by self, and has more individualized treatment. With the development of clinical medical technology and the improvement of pharmaceutical technology, more and more intravenous drugs (such as narcotics, analgesics, etc.) need to be continuously infused during or after surgery.
The infusion pump is a micro infusion device which injects medicine at a certain speed, micro amount, continuously and uniformly by means of infusion power and through the control of a flow limiting device, and the infusion power mainly has two types of mechanical elasticity and electric driving, for example, the mechanical elasticity of a liquid storage bag is used as the power.
Compared with the traditional electronic injection pump or target control pump, the infusion pump has the advantages of simple structure, easy operation and the like, can effectively reduce the acquisition cost and the management cost, and is suitable for large-scale use in hospitals at all levels. Because the flow rate of the infusion pump is small, the infusion pump belongs to a micro level, and the flow control is relatively difficult, most of the existing infusion pumps do not have the flow rate regulation function or only have the simple flow rate conversion function (namely, the infusion pipe is divided into a first infusion pipe and a second infusion pipe, and a flow control device is added on the second infusion pipe to realize switching), and the aim is generally 2 milliliters per hour or 5 milliliters per hour. In use, once a product is selected, a single flow rate cannot be changed. However, in the actual clinical use process, the administration flow rate is often required to be changed according to the treatment condition of different patients. However, the existing disposable infusion pump cannot meet the function and cannot well meet the clinical use requirement.
Therefore, how to control the flow rate of the infusion pump in multiple steps is a technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
According to the defects of the prior art, the invention provides the multistage flow control device applied to the infusion pump, which realizes multi-gear flow regulation, is accurate in control and good in sealing property, and meets the clinical use requirement.
The invention relates to a multistage flow control device applied to an infusion pump, which is characterized in that: the valve comprises a valve body, wherein the valve body is provided with a cylindrical valve cavity which is communicated up and down, a side channel A, a side channel B and a side channel C are also arranged in the valve body, inlet ends of the side channel A, the side channel B and the side channel C are sequentially communicated with the middle end of the valve cavity from top to bottom, and outlet ends of the side channel C, the side channel B and the side channel A are respectively communicated with the lower end of the valve cavity; the upper end and the lower end of the valve body are respectively provided with a bulge A and a bulge B which are communicated with the valve cavity, the sectional area of a cavity of the bulge A is smaller than that of the valve cavity, a valve rod is connected in the cavity of the bulge A and the valve cavity in a matching manner, the valve rod is provided with a hollow structure with an opening at the top and a closed bottom, the valve rod penetrates through the bulge A to be connected with the liquid inlet interface, and the bulge B is connected with the liquid outlet interface; the valve rod comprises a rod body A matched with the cavity of the bulge A and a rod body B matched with the valve cavity, the rod body A is provided with an arc bulge, the inner wall of the cavity of the bulge A is provided with an upper groove, a middle groove and a lower groove which are matched with the arc bulge, the sequential height difference among the upper groove, the middle groove and the lower groove is equal to the sequential height difference among the inlet end of the side channel A, the inlet end of the side channel B and the inlet end of the side channel C, and the side wall of the rod body B is provided with a liquid outlet hole matched with the inlet ends of the side channel A, the side channel B and the side channel C.
In use, the infusion pump is split to form a first infusion tube and a second infusion tube, and the device of the invention is applied to the second infusion tube. When only the first infusion tube is needed for infusion, the rod body B is positioned at the uppermost end of the valve cavity, the liquid outlet hole of the rod body B is not communicated with any one of the side channel A, the side channel B and the side channel C, the second infusion tube is disconnected, and the flow of the infusion pump is 2 ml/h. When the flow is regulated, the valve rod is pushed downwards to enable the arc-shaped protrusion to be matched with the upper groove, the liquid outlet hole is communicated with the side channel A, and the flow of the infusion pump is 4 ml/h; continuously pushing the valve rod downwards to enable the arc-shaped protrusion to be matched with the middle groove, wherein the liquid outlet hole is communicated with the side channel A and the side channel B, and the flow rate of the infusion pump is 6 ml/h; and continuously pushing the valve rod downwards to enable the arc-shaped protrusions to be matched with the lower grooves, wherein the liquid outlet hole is communicated with the side channel A, the side channel B and the side channel C, and the flow rate of the infusion pump is 8 ml/h.
Wherein, the preferred scheme is as follows:
the valve body and the valve rod are made of medical plastic materials. When specifically selecting the material, need select for use medical plastics that have certain elasticity for the arc arch can pass through easily between protruding A's cavity, upper groove, well recess and low groove, and minimize user's thrust also prevents to operate for a long time and causes the damage.
A guide groove is formed in the valve cavity in the vertical direction, and a guide piece matched with the guide groove is arranged on the rod body B. The guide groove and the guide piece are matched, so that the valve rod cannot deflect in the pushing process, stable matching between the arc-shaped protrusion and the upper groove, between the arc-shaped protrusion and the middle groove and between the arc-shaped protrusion and the lower groove is ensured, and deviation cannot occur.
And an indicating line is marked on the rod body A. The indicator line marks have three, correspond the state of adjusting respectively, can regard as the instruction standard when indicator line and arch A are parallel and level.
Side passageway A, side passageway B and side passageway C are located same vertical plane, go out the liquid hole on the body of rod B and be rectangular shape structure, and go out liquid hole width and side passageway A, side passageway B and side passageway C's entrance point width unanimity. When the side channel A, the side channel B and the side channel C are positioned in the same vertical plane, the opening of the liquid outlet hole is smaller, the processing technology is simplified, and the sealing performance is also improved.
The invention has the advantages that: the structure is reliable, the control is simple, the micro-quantity accurate control and supply of the medicine are realized, the multi-stage flow control is realized, and the clinical use requirement is met.
Drawings
FIG. 1 is a state diagram I of the use of example 1;
FIG. 2 is a state diagram II of the use of example 1;
FIG. 3 is a view showing the state of use of example 1;
FIG. 4 is a state diagram IV of the use of example 1;
FIG. 5 is a schematic structural view of example 2;
in the figure: 1. the valve comprises a valve body 2, a valve cavity 3, a side channel A4, a side channel B5, a side channel C6, a protrusion A7, a protrusion B8, a liquid inlet interface 9, a liquid outlet interface 10, a rod body A11, a rod body B12, an arc protrusion 13, an upper groove 14, a middle groove 15, a lower groove 16, a liquid outlet hole 17 and a guide groove.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1:
as shown in fig. 1, a multistage flow control device applied to an infusion pump includes a valve body 1, the valve body 1 has a cylindrical valve cavity 2 which is through from top to bottom, a side passage A3, a side passage B4 and a side passage C5 are further opened inside the valve body 1, inlet ends of the side passage A3, the side passage B4 and the side passage C5 are sequentially communicated with a middle end of the valve cavity 2 from top to bottom, and outlet ends of the side passage C5, the side passage B4 and the side passage A3 are respectively communicated with a lower end of the valve cavity 2; the upper end and the lower end of the valve body 1 are respectively provided with a bulge A6 and a bulge B7 which are communicated with the valve cavity 2, the sectional area of a cavity of the bulge A6 is smaller than that of the valve cavity 2, a valve rod is connected in the cavity of the bulge A6 and the valve cavity 2 in a matching manner, the valve rod is provided with a hollow structure with an opening top and a closed bottom, the valve rod penetrates through the bulge A6 to be connected with the liquid inlet port 8, and the bulge B7 is connected with the liquid outlet port 9; the valve rod comprises a rod body A10 matched with a bulge A6 cavity and a rod body B11 matched with the valve cavity 2, wherein an arc-shaped bulge 12 is arranged on the rod body A10, an upper groove 13, a middle groove 14 and a lower groove 15 matched with the arc-shaped bulge 12 are formed in the inner wall of the cavity of the bulge A6, the height difference among the upper groove 13, the middle groove 14 and the lower groove 15 in sequence is equal to the height difference among the inlet ends of a side channel A3, a side channel B4 and a side channel C5 in sequence, and liquid outlet holes 16 matched with the inlet ends of the side channel A3, the side channel B4 and the side channel C5 are formed in the side wall of the rod body B11.
The side channel A3, the side channel B4 and the side channel C5 are located in the same vertical plane, the liquid outlet hole 16 on the rod body B11 is of a long strip-shaped structure, and the width of the liquid outlet hole 16 is consistent with the width of the inlet ends of the side channel A3, the side channel B4 and the side channel C5. When the side channel A3, the side channel B4 and the side channel C5 are located in the same vertical plane, the opening of the liquid outlet hole 16 is smaller, the processing technology is simplified, and the sealing performance is improved.
The valve body 1 and the valve rod are made of medical plastic materials. When the specific material is selected, medical plastics with certain elasticity are required to be selected, so that the arc-shaped protrusion 12 can be easily transited among the cavity of the protrusion A6, the upper groove 13, the middle groove 14 and the lower groove 15, the thrust of a user is reduced as much as possible, and the damage caused by long-term operation is prevented.
A guide groove 17 is formed in the valve cavity 2 along the vertical direction, and a guide piece matched with the guide groove 17 is arranged on the rod body B11. The guide groove 17 is matched with the guide piece, so that the valve rod cannot deflect in the pushing process, the arc-shaped protrusion 12 can be stably matched with the upper groove 13, the middle groove 14 and the lower groove 15, and deviation cannot occur.
The rod body A10 is marked with an indicating line. The indication lines are marked with three, which respectively correspond to the adjusting states, and can be used as indication standards when the indication lines are flush with the bulge A6.
In use, the infusion pump is split to form a first infusion tube and a second infusion tube, and the device of the invention is applied to the second infusion tube. When only the first infusion tube is needed for infusion, as shown in fig. 1, the rod body B11 is located at the uppermost end of the valve cavity 2, and the liquid outlet 16 of the rod body B11 is not communicated with any one of the side channel A3, the side channel B4 and the side channel C5, so that the second infusion tube is disconnected, and the flow rate of the infusion pump is 2 ml/h. When the flow is regulated, the valve rod is pushed downwards, as shown in figure 2, so that the arc-shaped bulge 12 is matched with the upper groove 13, the liquid outlet hole 16 is communicated with the side channel A3, and the flow of the infusion pump is 4 ml/h; the valve rod is pushed downwards continuously, as shown in fig. 3, so that the arc-shaped protrusion 12 is matched with the middle groove 14, the liquid outlet hole 16 is communicated with the side channel A3 and the side channel B4, and the flow rate of the infusion pump is 6 ml/h; the valve stem is pushed further downwardly so that arcuate projection 12 engages lower groove 15 as shown in figure 4, and exit opening 16 is connected to side channel a3, side channel B4 and side channel C5, at a flow rate of 8ml/h for the infusion pump.
Example 2:
as shown in fig. 5, a multi-stage flow control device applied to an infusion pump includes a valve body 1, the valve body 1 has a cylindrical valve cavity 2 which is through from top to bottom, a side passage A3, a side passage B4 and a side passage C5 are further opened inside the valve body 1, inlet ends of the side passage A3, the side passage B4 and the side passage C5 are sequentially communicated with a middle end of the valve cavity 2 from top to bottom, and outlet ends of the side passage C5, the side passage B4 and the side passage A3 are respectively communicated with a lower end of the valve cavity 2; the upper end and the lower end of the valve body 1 are respectively provided with a bulge A6 and a bulge B7 which are communicated with the valve cavity 2, the sectional area of a cavity of the bulge A6 is smaller than that of the valve cavity 2, a valve rod is connected in the cavity of the bulge A6 and the valve cavity 2 in a matching manner, the valve rod is provided with a hollow structure with an opening top and a closed bottom, the valve rod penetrates through the bulge A6 to be connected with the liquid inlet port 8, and the bulge B7 is connected with the liquid outlet port 9; the valve rod comprises a rod body A10 matched with a bulge A6 cavity and a rod body B11 matched with the valve cavity 2, wherein an arc-shaped bulge 12 is arranged on the rod body A10, an upper groove 13, a middle groove 14 and a lower groove 15 matched with the arc-shaped bulge 12 are formed in the inner wall of the cavity of the bulge A6, the height difference among the upper groove 13, the middle groove 14 and the lower groove 15 in sequence is equal to the height difference among the inlet ends of a side channel A3, a side channel B4 and a side channel C5 in sequence, and liquid outlet holes 16 matched with the inlet ends of the side channel A3, the side channel B4 and the side channel C5 are formed in the side wall of the rod body B11.
The side channel A3, side channel C5 are located same vertical plane, and side channel B4 is located opposite side vertical plane, the play liquid hole 16 on the body of rod B11 is then two rectangular holes, and one corresponds side channel A3, side channel C5, and the other corresponds side channel B4.
The valve body 1 and the valve rod are made of medical plastic materials. When the specific material is selected, medical plastics with certain elasticity are required to be selected, so that the arc-shaped protrusion 12 can be easily transited among the cavity of the protrusion A6, the upper groove 13, the middle groove 14 and the lower groove 15, the thrust of a user is reduced as much as possible, and the damage caused by long-term operation is prevented.
A guide groove 17 is formed in the valve cavity 2 along the vertical direction, and a guide piece matched with the guide groove 17 is arranged on the rod body B11. The guide groove 17 is matched with the guide piece, so that the valve rod cannot deflect in the pushing process, the arc-shaped protrusion 12 can be stably matched with the upper groove 13, the middle groove 14 and the lower groove 15, and deviation cannot occur.
The rod body A10 is marked with an indicating line. The indication lines are marked with three, which respectively correspond to the adjusting states, and can be used as indication standards when the indication lines are flush with the bulge A6.
Claims (3)
1. A multi-stage flow control device for an infusion pump, comprising: the valve comprises a valve body, wherein the valve body is provided with a cylindrical valve cavity which is communicated up and down, a side channel A, a side channel B and a side channel C are also arranged in the valve body, inlet ends of the side channel A, the side channel B and the side channel C are sequentially communicated with the middle end of the valve cavity from top to bottom, and outlet ends of the side channel C, the side channel B and the side channel A are respectively communicated with the lower end of the valve cavity; the upper end and the lower end of the valve body are respectively provided with a bulge A and a bulge B which are communicated with the valve cavity, the sectional area of a cavity of the bulge A is smaller than that of the valve cavity, a valve rod is connected in the cavity of the bulge A and the valve cavity in a matching manner, the valve rod is provided with a hollow structure with an opening at the top and a closed bottom, the valve rod penetrates through the bulge A to be connected with the liquid inlet interface, and the bulge B is connected with the liquid outlet interface; the valve rod comprises a rod body A matched with the cavity of the protrusion A and a rod body B matched with the valve cavity, wherein an arc protrusion is arranged on the rod body A, an upper groove, a middle groove and a lower groove which are matched with the arc protrusion are formed in the inner wall of the cavity of the protrusion A, the height difference between the upper groove, the middle groove and the lower groove in sequence is equal to the height difference between the inlet end of the side channel A, the inlet end of the side channel B and the inlet end of the side channel C in sequence, liquid outlet holes matched with the inlet ends of the side channel A, the side channel B and the side channel C are formed in the side wall of the rod body B, a guide groove is formed in the valve cavity along the vertical direction, a guide piece matched with the guide groove is arranged on the rod body B, and an indicating line is marked on.
2. The multi-stage flow control device applied to an infusion pump according to claim 1, wherein: the valve body and the valve rod are made of medical plastic materials.
3. The multi-stage flow control device applied to an infusion pump according to claim 1, wherein: side passageway A, side passageway B and side passageway C are located same vertical plane, go out the liquid hole on the body of rod B and be rectangular shape structure, and go out liquid hole width and side passageway A, side passageway B and side passageway C's entrance point width unanimity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212409.8A CN108295338B (en) | 2018-03-15 | 2018-03-15 | Be applied to infusion pump's multistage flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212409.8A CN108295338B (en) | 2018-03-15 | 2018-03-15 | Be applied to infusion pump's multistage flow control device |
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| Publication Number | Publication Date |
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| CN108295338A CN108295338A (en) | 2018-07-20 |
| CN108295338B true CN108295338B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810212409.8A Expired - Fee Related CN108295338B (en) | 2018-03-15 | 2018-03-15 | Be applied to infusion pump's multistage flow control device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113543823B (en) * | 2019-05-17 | 2023-12-15 | 上海移宇科技有限公司 | Drug infusion device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797805Y (en) * | 2005-04-22 | 2006-07-19 | 杨泳 | Multi-stage control valve |
| CN1814314A (en) * | 2005-02-04 | 2006-08-09 | 庄昌彬 | Transfusion flow regulator |
| CN102210897A (en) * | 2010-04-09 | 2011-10-12 | 贾宇东 | Liquid medicine filter with vertical type precise flow regulator |
| CN202036624U (en) * | 2011-04-16 | 2011-11-16 | 广州中医药大学 | Flow control device of vein infusion apparatus with stable flow |
| CN203948657U (en) * | 2014-07-27 | 2014-11-19 | 成都国光电子仪表有限责任公司 | The multistage flow control valve of rock gas |
| CN204158804U (en) * | 2014-09-12 | 2015-02-18 | 扬州市明星医塑器材有限公司 | A kind of multichannel flow adjustable type infusion pump |
| CN204372263U (en) * | 2014-11-28 | 2015-06-03 | 嵩县中科孵化器有限公司 | Fluorine-lining valve door |
| CN207085028U (en) * | 2017-02-24 | 2018-03-13 | 威海市经济技术开发区医院 | A kind of dropping funnel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130138075A1 (en) * | 2011-11-30 | 2013-05-30 | Emed Technologies Corp. (Nv) | Variable flow control device, system and method |
-
2018
- 2018-03-15 CN CN201810212409.8A patent/CN108295338B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1814314A (en) * | 2005-02-04 | 2006-08-09 | 庄昌彬 | Transfusion flow regulator |
| CN2797805Y (en) * | 2005-04-22 | 2006-07-19 | 杨泳 | Multi-stage control valve |
| CN102210897A (en) * | 2010-04-09 | 2011-10-12 | 贾宇东 | Liquid medicine filter with vertical type precise flow regulator |
| CN202036624U (en) * | 2011-04-16 | 2011-11-16 | 广州中医药大学 | Flow control device of vein infusion apparatus with stable flow |
| CN203948657U (en) * | 2014-07-27 | 2014-11-19 | 成都国光电子仪表有限责任公司 | The multistage flow control valve of rock gas |
| CN204158804U (en) * | 2014-09-12 | 2015-02-18 | 扬州市明星医塑器材有限公司 | A kind of multichannel flow adjustable type infusion pump |
| CN204372263U (en) * | 2014-11-28 | 2015-06-03 | 嵩县中科孵化器有限公司 | Fluorine-lining valve door |
| CN207085028U (en) * | 2017-02-24 | 2018-03-13 | 威海市经济技术开发区医院 | A kind of dropping funnel |
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| Publication number | Publication date |
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| CN108295338A (en) | 2018-07-20 |
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Effective date of registration: 20210315 Address after: 213001 No.58 Airport South Road, Luoxi Town, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Changzhou Qianshou Textile Machinery Technology Co.,Ltd. Address before: No.29 Yongping Road, Licang District, Qingdao City, Shandong Province Patentee before: THE THIRD PEOPLE'S HOSPITAL OF QINGDAO |
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