CN203355029U - Creep controlled infusion device actuated by shape memory alloy springs - Google Patents
Creep controlled infusion device actuated by shape memory alloy springs Download PDFInfo
- Publication number
- CN203355029U CN203355029U CN 201320389541 CN201320389541U CN203355029U CN 203355029 U CN203355029 U CN 203355029U CN 201320389541 CN201320389541 CN 201320389541 CN 201320389541 U CN201320389541 U CN 201320389541U CN 203355029 U CN203355029 U CN 203355029U
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- CN
- China
- Prior art keywords
- shape memory
- memory alloy
- alloy spring
- spring
- guide rod
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- Expired - Lifetime
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 47
- 238000001802 infusion Methods 0.000 title claims abstract description 36
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a creep controlled infusion device actuated by shape memory alloy springs. A clamping groove is formed in a fixing plate, a disposable infusion tube is arranged in the clamping groove of the fixing plate, a plurality of shape memory alloy spring driver fixing holes are formed in a baffle and a supporting plate, and each shape memory alloy spring driver comprises a reset spring, a guide rod and a shape memory alloy spring, wherein a check block is arranged in the middle of the guide rod, and the reset spring and the shape memory alloy spring are arranged on the portions, on the two sides of the check block, of the guide rod. The fixing plate and the baffle are arranged on a base, the end portion, provided with the reset spring, of each guide rod penetrates into the a baffle fixing hole and is in contact with the disposable infusion tube, the end portion, provided with the shape memory alloy spring, of each guide rod penetrates into a supporting plate fixing hole, and the supporting plate is fixed to the base through bolts. The creep controlled infusion device actuated by the shape memory alloy springs has the advantages of being intelligent in structure, free of noise, low in weight and the like, and is suitable for clinical infusion and other aspects.
Description
Technical field
This utility model relates to the drug infusion device device, relates in particular to a kind of wriggling driven based on shape memory alloy spring and controls the formula infusion set.
Background technology
Artificial intravenous drip is as a kind of traditional clinical transfusion method, quite extensive in the application of hospital.But the method exists such as poor, the easy operate miss of control accuracy, infusion process monitoring and waits not in time problem, easily causes the generation of malpractice.Therefore, the intelligent transfusion technology becomes the focus direction of armarium research and development gradually.In the last few years, related researcher's Devoting Major Efforts To Developing intelligent infusion device, obtained a series of achievements in research, and portioned product has obtained wideling popularize and applying in clinical treatment.But still there are many technical problems in existing intelligent transfusion equipment in the market, and often cause malpractice.The reason that intelligent transfusion equipment causes malpractice is a lot, wherein a most important reason is the design defect of fluid delivery apparatus internal mechanical parts, such as the drive motors control accuracy of controlling the medicinal liquid flow velocity is not high, mechanical part internal lubrication liquid has phase mutual friction between the danger of polluting medicine and device interior complicated in mechanical structure, mechanism to produce noise etc.For correcting these shortcomings, need the mechanical part of simplified intelligent transfusion device inside, design more simple, reliable infusion controller.
The structure of intelligence fluid delivery apparatus of developing based on the marmem controller also have without lubricated, medicine-less pollution is dangerous, produces hardly the advantages such as noise, environmental protection during work.This apparatus structure is simple, and it is convenient to control, and power energy density is high, and rapid dynamic response speed does not need the additional brake device, has self-locking function after outage, is specially adapted to high-precision infusion controller.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of wriggling driven based on shape memory alloy spring to control the formula infusion set.
The wriggling driven based on shape memory alloy spring is controlled the formula infusion set and is comprised pedestal, fixing head, baffle plate, gripper shoe, a plurality of shape memory alloy spring driver, one-time infusion tube; Fixing head is provided with draw-in groove, one-time infusion tube is placed in the draw-in groove of fixing head, baffle plate and gripper shoe are provided with a plurality of shape memory alloy spring driver fixing holes, the shape memory alloy spring driver comprises back-moving spring, guide rod and shape memory alloy spring, be provided with block in the middle of guide rod, the guide rod of block both sides is provided with back-moving spring and shape memory alloy spring; Pedestal is provided with fixing head, baffle plate, the guide rod end that is provided with back-moving spring penetrates the baffle plate fixing hole, and contact with one-time infusion tube, the guide rod end that is provided with shape memory alloy spring penetrates the fixing hole of gripper shoe, and gripper shoe is bolted on pedestal.
The stroke of described marmen is between 3 millimeters to 5 millimeters.
Described back-moving spring adopts spring steel, its stiffness coefficient at 1N/mm between 1.8N/mm.
Described shape memory alloy spring adopts nickel-titanium alloy material, and phase transition temperature is 55 to 75 degrees centigrade or 70 to 90 degrees centigrade.
This utility model compared with prior art has beneficial effect
1) the shape memory alloy spring driver replaces traditional motor, and simple in structure, reliability improves.
2) motion of marmen is not affected by magnetic fields, only relevant with the signal of telecommunication, therefore is applicable to some application of special occasions such as nuclear magnetic resonance, NMR.
3) shape memory alloy spring is directly driven by the signal of telecommunication, and the type of drive mature and reliable is easy to use control algolithm adjustment transfusion precision.
The accompanying drawing explanation
Fig. 1 is that the wriggling driven based on marmem is controlled formula infusion set structural representation;
Fig. 2 is base of the present utility model and support plate structural representation;
Fig. 3 is guide rod structure schematic diagram of the present utility model;
The notch schematic diagram that Fig. 4 is fixedly one-time infusion tube of the present utility model.
The specific embodiment
By reference to the accompanying drawings, be conducive to understand more all-sidedly and accurately front for basic overview of the present utility model and specific implementation process of the present utility model.Accompanying drawing only provides a kind of example of the present utility model, accurate layout, geometry and the enforcement means shown in actual invention is not limited to.
As shown in Figures 1 to 3, the wriggling driven based on shape memory alloy spring is controlled the formula infusion set and is comprised pedestal 1, fixing head 2, baffle plate 3, gripper shoe 4, a plurality of shape memory alloy spring driver 5, one-time infusion tube 6; Fixing head 2 is provided with draw-in groove, one-time infusion tube 6 is placed in the draw-in groove of fixing head 2, baffle plate 3 and gripper shoe 4 are provided with a plurality of shape memory alloy spring driver fixing holes, shape memory alloy spring driver 5 comprises back-moving spring 5.1, guide rod 5.3 and shape memory alloy spring 5.4, be provided with block 5.2 in the middle of guide rod 5.3, the guide rod of block 5.2 both sides is provided with back-moving spring 5.1 and shape memory alloy spring 5.4; Pedestal 1 is provided with fixing head 2, baffle plate 3, guide rod 5.3 ends that are provided with back-moving spring 5.1 penetrate baffle plate 3 fixing holes, and contact with one-time infusion tube 6, guide rod 5.3 ends that are provided with shape memory alloy spring 5.4 penetrate the fixing hole of gripper shoe 4, and gripper shoe 4 is bolted on pedestal 1.
The stroke of described marmen 5 is between 3 millimeters to 5 millimeters.
Described back-moving spring 5.1 adopts spring steel, its stiffness coefficient at 1N/mm between 1.8N/mm.
Described shape memory alloy spring 5.4 adopts nickel-titanium alloy material, and phase transition temperature is 55 to 75 degrees centigrade or 70 to 90 degrees centigrade.
As shown in Figure 4 be positioned at 2 notchs on fixing head 2, for fixing one-time infusion tube 6.
The wriggling driven based on shape memory alloy spring is controlled the normal infusion method of formula: shape memory alloy spring 5.4 is thrust spring, Length Ratio Wen Shi great during its high temperature, in work, shape memory alloy spring 5.4 temperature under signal of telecommunication heating raises, the transformation of martensite to austenitic structure occurs, it is large that spring rate becomes, flick along its length and drive leader 5.3 extruding one-time infusion tubes 6, after extrusion process completes, the signal of telecommunication finishes heating, shape memory alloy spring 5.4 temperature reduce, return to martensitic state by austenitic state, spring rate reduces, by back-moving spring 5.1 by shape memory alloy spring driver 5 homings, and under controlling, the signal of telecommunication starts next crush stroke, a plurality of shape memory alloy spring drivers 5 are under the control of the signal of telecommunication, complete in order extrusion process, to realize the vermicular movement of one-time infusion tube 6, make the medicine directed flow in one-time infusion tube 6, realize transfusion, by adjusting the dynamic frequency of doing of a plurality of shape memory alloy spring drivers 5, regulating transfusion speed.
Claims (4)
1. the wriggling driven based on shape memory alloy spring is controlled the formula infusion set, it is characterized in that comprising pedestal (1), fixing head (2), baffle plate (3), gripper shoe (4), a plurality of shape memory alloy spring driver (5), one-time infusion tube (6); Fixing head (2) is provided with draw-in groove, one-time infusion tube (6) is placed in the draw-in groove of fixing head (2), baffle plate (3) and gripper shoe (4) are provided with a plurality of shape memory alloy spring driver fixing holes, shape memory alloy spring driver (5) comprises back-moving spring (5.1), guide rod (5.3) and shape memory alloy spring (5.4), be provided with block (5.2) in the middle of guide rod (5.3), the guide rod of block (5.2) both sides is provided with back-moving spring (5.1) and shape memory alloy spring (5.4); Pedestal (1) is provided with fixing head (2), baffle plate (3), guide rod (5.3) end that is provided with back-moving spring (5.1) penetrates baffle plate (3) fixing hole, and contact with one-time infusion tube (6), guide rod (5.3) end that is provided with shape memory alloy spring (5.4) penetrates the fixing hole of gripper shoe (4), and gripper shoe (4) is bolted on pedestal (1).
2. control the formula infusion set according to a kind of wriggling driven based on shape memory alloy spring claimed in claim 1, it is characterized in that the stroke of described marmen (5) is between 3 millimeters to 5 millimeters.
3. control the formula infusion set according to a kind of wriggling driven based on shape memory alloy spring claimed in claim 1, it is characterized in that described back-moving spring (5.1) adopts spring steel, its stiffness coefficient at 1N/mm between 1.8N/mm.
4. control the formula infusion set according to a kind of wriggling driven based on shape memory alloy spring claimed in claim 1, it is characterized in that described shape memory alloy spring (5.4) adopts nickel-titanium alloy material, phase transition temperature is 55 to 75 degrees centigrade or 70 to 90 degrees centigrade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320389541 CN203355029U (en) | 2013-07-02 | 2013-07-02 | Creep controlled infusion device actuated by shape memory alloy springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320389541 CN203355029U (en) | 2013-07-02 | 2013-07-02 | Creep controlled infusion device actuated by shape memory alloy springs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203355029U true CN203355029U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320389541 Expired - Lifetime CN203355029U (en) | 2013-07-02 | 2013-07-02 | Creep controlled infusion device actuated by shape memory alloy springs |
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| Country | Link |
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| CN (1) | CN203355029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316399A (en) * | 2013-07-02 | 2013-09-25 | 浙江大学 | Creep-control infusion device and method thereof based on shape memory alloy spring driver |
| CN107084158A (en) * | 2017-06-27 | 2017-08-22 | 西北工业大学 | A kind of axial flow blower stator blade denoising structure based on memorial alloy |
-
2013
- 2013-07-02 CN CN 201320389541 patent/CN203355029U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316399A (en) * | 2013-07-02 | 2013-09-25 | 浙江大学 | Creep-control infusion device and method thereof based on shape memory alloy spring driver |
| CN107084158A (en) * | 2017-06-27 | 2017-08-22 | 西北工业大学 | A kind of axial flow blower stator blade denoising structure based on memorial alloy |
| CN107084158B (en) * | 2017-06-27 | 2019-05-10 | 西北工业大学 | A kind of axial flow blower stator blade denoising structure based on memorial alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20150121 |
|
| RGAV | Abandon patent right to avoid regrant |