CN104415417A - Infusion pump peristaltic device with elastic check valve - Google Patents
Infusion pump peristaltic device with elastic check valve Download PDFInfo
- Publication number
- CN104415417A CN104415417A CN201310366834.XA CN201310366834A CN104415417A CN 104415417 A CN104415417 A CN 104415417A CN 201310366834 A CN201310366834 A CN 201310366834A CN 104415417 A CN104415417 A CN 104415417A
- Authority
- CN
- China
- Prior art keywords
- check valve
- liquid valve
- elasticity
- infusion pump
- elastic check
- 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.)
- Withdrawn
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 37
- 230000002572 peristaltic effect Effects 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 claims description 46
- 238000001125 extrusion Methods 0.000 abstract 5
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 241000270728 Alligator Species 0.000 description 1
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- 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
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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a peristaltic pump infusion device with an elastic check valve. The peristaltic pump infusion device comprises a crankshaft (1), a front elastic check valve (2), an extrusion block (6), a rear elastic check valve (7), and an extrusion baffle (4). The front elastic check valve and the rear elastic check valve have the same structure and consist of heads, check valve springs, and press sheets. An elastic infusion tube (3) is mounted among the front elastic check valve (2), the extrusion block (6), the rear elastic check valve (7) and the extrusion baffle (4). The crankshaft (1) is respectively in tangent fit with the front elastic check valve (2), the extrusion block (6) and the rear elastic check valve (7). By the peristaltic pump infusion device, the leakage during the infusion due to precision bias and abrasion in processing and assembly can be avoided.
Description
Art
The present invention relates to infusion pump in medical application, especially a kind of have the creeping device of infusion pump that elasticity stops liquid valve.
Background technology
Infusion pump in medical application is usually used in medicine or medicament to inject in patient body.Common creeping device of infusion pump is stuck in the elastic transfusion pipe in the middle of extruding baffle plate by front only liquid valve block, rear only liquid valve block and crushing block by certain sequential extruding, finally completes transfusion.Forward and backward only liquid valve block firmly must push down tube for transfusion at the maximum position of clamping stroke, prevents leakage.Because different infusion pipeline wall thickness is variant, in order to avoid leakage or dieback, a lot of bedside infusion pump adopts elasticity extruding baffle plate to carry out the difference of compensating pipe wall thickness.And portable infusion pump is owing to often can not put into this elasticity extruding baffle mechanism by the restriction of bulk.So current portable infusion pump all can only use wall thickness dimension dedicated transfusion pipe or special consumptive material accurately.But, also likely can there is only liquid valve block due to the wearing and tearing in processing, the deviation of assembly precision or use procedure in infusion process and extrude the situation of excesssive gap between baffle plate, thus causing unexpected leakage, causing risk to patient.Once there is the product recall of portable infusion pump in reason thus in recent years.
Summary of the invention
The deficiency that liquid valve block may cause leakage is stopped in order to overcome existing infusion pump rigidity, the invention provides and a kind of there is the creeping device of infusion pump that elasticity stops liquid valve, the elasticity of this device is stopped liquid valve and can be compensated the gap deviation stopped between liquid valve block and extruding baffle plate, enough thrusts are provided, avoid the leakage that accuracy error and wearing and tearing due to processing, assembling cause.Adopt the portable infusion pump of this creeping device can also use the infusion pipeline of different wall, make conventional infusion pipe also may be used for portable infusion pump, reduce use cost, extend the range of application of portable infusion pump.In addition, the elasticity adopted with bedside infusion pump extrudes compared with baffle plate, and this has the creeping device of infusion pump that elasticity stops liquid valve has structure simple, with low cost, advantage easy for installation.
The technical solution adopted for the present invention to solve the technical problems is:
Have the creeping device of infusion pump that elasticity stops liquid valve, described creeping device is made up of bent axle, front only liquid valve, crushing block, rear only liquid valve, extruding baffle plate.Described forward and backward only liquid valve arrangement is identical, is made up of top, only liquid spring, tabletting.Described top, with buckle structure, is fastened by this buckle and described tabletting, and by described only liquid alligator clamp in the middle of top and tabletting.Square blind hole is arranged at described tabletting top, is cooperatively interacted and leads, be linked in inside blind hole bottom, top by four inner surfaces of blind hole and described top outer surface.Compressed during described only liquid spring fitting, produced certain pretightning force.
During use, elastic transfusion pipe stops liquid valve, crushing block, rear only liquid valve and extrudes between baffle plate before being installed on.During transfusion, front only liquid valve block, rear only liquid valve block and crushing block are by crank-driven, are stuck in the elastic transfusion pipe in the middle of extruding baffle plate by certain sequential extruding.Elasticity stops liquid valve when being pressed to maximum position downwards, can be extruded baffle plate and be withstood by elastic transfusion pipe, and only liquid spring is compressed certain distance, and now spring force can ensure that elastic transfusion pipe is compacted.
When installation dimension deviation causes the distance between bent axle and extruding baffle plate become large or wear and tear, stop liquid valve in elasticity and be pressed to maximum position place downwards and stop liquid spring and upspring a certain amount of compensation accordingly apart from changing.Now spring force still can ensure that elastic transfusion pipe is compacted.
When installation dimension deviation causes the distance between bent axle and extruding baffle plate to diminish, stop liquid valve in elasticity and be pressed to maximum position place downwards and stop liquid spring and be further compressed the corresponding distance change of a certain amount of compensation.Now spring force still can ensure that elastic transfusion pipe is compacted.
The invention has the beneficial effects as follows, can avoid in infusion process due to the accuracy error of processing, assembling and the leakage that causes of wearing and tearing.Adopt the portable infusion pump of this creeping device can also use the infusion pipeline of different wall, make conventional infusion pipe also may be used for portable infusion pump, reduce use cost, extend the range of application of portable infusion pump.In addition, the elasticity adopted with bedside infusion pump extrudes compared with baffle mechanism, and this has the creeping device of infusion pump that elasticity stops liquid valve has structure simple, with low cost, advantage easy for installation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 has the creeping device of infusion pump structural map that elasticity stops liquid valve.
Fig. 2 is the structural map that elasticity stops a liquid valve embodiment.
Fig. 3 is the structural map of an embodiment of tabletting
1. bent axles in figure, 2., elasticity stops liquid valve, 3. elastic transfusion pipe, 4. extrudes baffle plate, and 5., elasticity stops liquid valve, 6. crushing block, and 7. come directly towards, 8. buckle, 9. stops liquid spring, 10. tabletting, 11. square blind holes, 12. inner surfaces.
Detailed description of the invention
In FIG, elastic transfusion pipe (3) is installed on that front elasticity stops liquid valve (2), crushing block (6), rear elasticity stop liquid valve (7) and between extruding baffle plate (4).Bent axle (1) stops liquid valve (2) respectively with front elasticity, crushing block (6), rear elasticity stop that liquid valve (7) is tangent to be coordinated.
In the embodiment depicted in figure 2, top (7) is with buckle (8), is fastened by buckle (8) and tabletting (10), and liquid spring (9) will be stopped be clipped in top (7) and tabletting (10) centre.Square blind hole (11) is arranged at tabletting (10) top, to be cooperatively interacted with top (7) outer surface by four inner surfaces (12) of square blind hole (11) and lead, bottom, top is linked in inside square blind hole (11).
Claims (2)
1. there is the creeping device of infusion pump that elasticity stops liquid valve, it is characterized in that: elastic transfusion pipe (3) is installed on that front elasticity stops liquid valve (2), crushing block (6), rear elasticity stop liquid valve (7) and between extruding baffle plate (4).Bent axle (1) stops liquid valve (2) respectively with front elasticity, crushing block (6), rear elasticity stop that liquid valve (7) is tangent to be coordinated.
2. elasticity according to claim 1 stops liquid valve, it is characterized in that: top (7) is with buckle (8), is fastened by buckle (8) and tabletting (10), and liquid spring (9) will be stopped be clipped in top (7) and tabletting (10) centre.Square blind hole (11) is arranged at tabletting (10) top, to be cooperatively interacted with top (7) outer surface by four inner surfaces (12) of square blind hole (11) and lead, bottom, top is linked in inside square blind hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366834.XA CN104415417A (en) | 2013-08-20 | 2013-08-20 | Infusion pump peristaltic device with elastic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366834.XA CN104415417A (en) | 2013-08-20 | 2013-08-20 | Infusion pump peristaltic device with elastic check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104415417A true CN104415417A (en) | 2015-03-18 |
Family
ID=52966230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310366834.XA Withdrawn CN104415417A (en) | 2013-08-20 | 2013-08-20 | Infusion pump peristaltic device with elastic check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104415417A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617014A (en) * | 1985-11-26 | 1986-10-14 | Warner-Lambert Company | Dual mode I. V. infusion device |
| US5522799A (en) * | 1993-12-17 | 1996-06-04 | Sharp Kabushiki Kaisha | Fluid infusion pump capable of detecting erroneous tube displacement |
| US20120078216A1 (en) * | 2010-09-24 | 2012-03-29 | Smith Roger E | Infusion pumps |
| CN203001572U (en) * | 2012-12-05 | 2013-06-19 | 张涛 | Infusion tube wall thickness compensation device of infusion pump |
| CN203303431U (en) * | 2013-05-15 | 2013-11-27 | 深圳市深科医疗器械技术开发有限公司 | Infusion pump |
| CN104147658A (en) * | 2013-05-15 | 2014-11-19 | 深圳市深科医疗器械技术开发有限公司 | Infusion pump and infusion control method |
-
2013
- 2013-08-20 CN CN201310366834.XA patent/CN104415417A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617014A (en) * | 1985-11-26 | 1986-10-14 | Warner-Lambert Company | Dual mode I. V. infusion device |
| US5522799A (en) * | 1993-12-17 | 1996-06-04 | Sharp Kabushiki Kaisha | Fluid infusion pump capable of detecting erroneous tube displacement |
| US20120078216A1 (en) * | 2010-09-24 | 2012-03-29 | Smith Roger E | Infusion pumps |
| CN203001572U (en) * | 2012-12-05 | 2013-06-19 | 张涛 | Infusion tube wall thickness compensation device of infusion pump |
| CN203303431U (en) * | 2013-05-15 | 2013-11-27 | 深圳市深科医疗器械技术开发有限公司 | Infusion pump |
| CN104147658A (en) * | 2013-05-15 | 2014-11-19 | 深圳市深科医疗器械技术开发有限公司 | Infusion pump and infusion control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160914 Address after: Shanghai Free Trade Zone 200000 GuoShouJing Road No. 351 Building No. 2 room A687-22 Applicant after: Shanghai east to Mdt InfoTech Ltd Address before: 201208 No. 2899, Zhang Yang North Road, Shanghai, No. 2, 1201 Applicant before: Xiao Jin Applicant before: Luo Lingli |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150318 |
|
| WW01 | Invention patent application withdrawn after publication |