CN107789699A - A kind of solvent-free transfusion system structure and its manufacture method - Google Patents
A kind of solvent-free transfusion system structure and its manufacture method Download PDFInfo
- Publication number
- CN107789699A CN107789699A CN201711215451.7A CN201711215451A CN107789699A CN 107789699 A CN107789699 A CN 107789699A CN 201711215451 A CN201711215451 A CN 201711215451A CN 107789699 A CN107789699 A CN 107789699A
- Authority
- CN
- China
- Prior art keywords
- collar
- chimb
- dropping funnel
- puncture outfit
- injection
- 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- Withdrawn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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
Abstract
A kind of solvent-free transfusion system structure, it includes the puncture outfit on top and the lower dropping funnel of bottom, it is tightly connected between the puncture outfit and lower dropping funnel by collar, the upper chimb that puncture outfit lower end excircle extends radially outwardly close to end provided with a circle, the upper end excircle of the lower dropping funnel is provided with the lower chimb that a circle extends radially outwardly, the lower surface of the upper chimb and the upper surface of lower chimb are brought into close contact, collar single injection-molded after the puncture outfit and lower dropping funnel assemble in injection mold, the collar middle inside is provided with concave inward structure along its circumferential direction, the edge of the upper chimb and lower chimb is located in the concave inward structure of the collar, it is interference fitted between the extension outer wall of the puncture outfit lower end and lower dropping funnel upper end inwall.The present invention at least have the advantages that simple in construction, cost is lower, processing more simply, more health and safety, environmentally friendly.
Description
Technical field
The present invention relates to a kind of solvent-free transfusion system structure and its manufacture method.
Background technology
Generally, the structure of the transfusion device with collar is common collar, puncture outfit, lower dropping funnel, respectively after injection molding
Assembling sealing, collar is specially sealed in puncture outfit with chemical classes adhesive solvent and lower dropping funnel assembles junction surface.It is but this to make
With the transfusion device of chemical adhesive solvent and unhygienic, first, the harmful substance in chemical adhesive solvent can be pressurized can permeate unavoidably
To inside dropping funnel, enter blood of human body with medicine in transfusion, body is damaged；In addition, three kinds of parts are in assembling process
In, the factor such as equipment, artificial, environment may all influence the quality of the finished product after assembling, and chemical adhesive solvent is difficult to control, processing
Difficulty is big, also increases processing cost；Chemical adhesive solvent causes very big pollution to environment in process.
The content of the invention
To solve the defects of above-mentioned technology is present, the present invention is intended to provide a kind of solvent-free transfusion system structure and its manufacturer
Method, it at least has the advantages that, and simple in construction, cost is lower, processing is simpler, more health and safety, environmentally friendly.
The specific content of the invention is as follows：
A kind of solvent-free transfusion system structure, it includes the puncture outfit on top and the lower dropping funnel of bottom, and the puncture outfit is with
It is tightly connected between dropping funnel by collar, puncture outfit lower end excircle is provided with what a circle extended radially outwardly close to end
Upper chimb, the upper end excircle of the lower dropping funnel are provided with the lower chimb that a circle extends radially outwardly, the lower end of the upper chimb
Face and the upper surface of lower chimb are brought into close contact, the collar after the puncture outfit and lower dropping funnel assemble in injection mold once
Injection molding, the collar middle inside are provided with the edge of concave inward structure, the upper chimb and lower chimb along its circumferential direction
It is located in the concave inward structure of the collar, the puncture outfit tube wall bottom is provided with extension, and the extension diameter is less than lower drop
The diameter of bucket upper end, the extension are extended downwardly into inside lower dropping funnel tube wall, and the extension outer wall of the puncture outfit lower end is with
It is interference fitted between the inwall of dropping funnel upper end.
Further, the edge of the upper chimb and the edge of lower chimb, which are equipped with, is easy to what collar engaged after being molded
Step, the upper surface of the upper chimb flush with the upper surface of the collar, lower surface and the collar of the lower chimb
Lower surface flushes.
Further, a kind of manufacture method of solvent-free transfusion system structure, step are：
Step 1, by the independent injection molding of puncture outfit, by the independent injection molding of lower dropping funnel；
Step 2, the puncture outfit of injection formed and lower dropping funnel are extended downwardly into lower dropping funnel by the bottom extension of puncture outfit
Upper end tube wall in, after interference fit, be put into injection collar die cavity and core rod in；
Step 3, making the lower surface of die cavity, core rod props up upwards downwardly against the upper surface of the upper chimb of the puncture outfit
The lower surface of lower chimb, while the upper end of core rod side props up upwardly the lower surface of die cavity, on die cavity and core rod binding face
Provided with submarine sprue on collar periphery is led to, core rod has close to upper chimb and lower collar edges periphery and its top and the bottom indwelling
Collar molding cavity, by injection molding channel, sprue injection collar sizing material, collar injection formed puncture outfit and lower dropping funnel it is outer
All single injection-moldeds, after cooling, make the collar of shaping together with close armful of lower dropping funnel.
Beneficial effect：
The present invention is by the way that after puncture outfit and lower dropping funnel junction interference fit, collar superscribes chimb and lower chimb
Edge, by collar single injection-molded, good sealing effect, without using chemical adhesive solvent, without harmful substance and into
Point, health environment-friendly, processing is simple, cost substantially reduces.To sum up, the present invention at least have it is simple in construction, cost is lower, processing more
Simply, more health and safety, it is environmentally friendly the advantages that.
Brief description of the drawings
Fig. 1 is the product structure schematic diagram of one embodiment of the present invention；
Fig. 2 is mplifying structure schematic diagram at A in Fig. 1；
Fig. 3 is assembling structure cross-sectional view in one embodiment of the present invention mould.
Reference：
1st, puncture outfit；2nd, lower dropping funnel；3rd, collar；4th, upper chimb；5th, lower chimb；6th, concave inward structure；7th, extension；8th, platform
Rank；9th, die cavity；10th, core rod；11st, sprue；12nd, runner.
Embodiment
With reference to specific embodiment, the present invention will be described：
A kind of solvent-free transfusion system structure, it includes the puncture outfit 1 on top and the lower dropping funnel 2 of bottom, the He of puncture outfit 1
It is tightly connected between lower dropping funnel 2 by collar 3, the lower end excircle of puncture outfit 1 is provided with a circle radially outward close to end
The upper chimb 4 of extension, the upper end excircle of the lower dropping funnel 2 is provided with the lower chimb 5 that a circle extends radially outwardly, described convex
The lower surface on side 4 and the upper surface of lower chimb 5 are brought into close contact, and the collar 3 is in the puncture outfit 1 and lower dropping funnel 2 in injection mould
Single injection-molded after being assembled in tool, the middle inside of collar 3 are provided with concave inward structure 6, the upper chimb 4 along its circumferential direction
It is located at the edge of lower chimb 5 in the concave inward structure 6 of the collar 3, the tube wall bottom of puncture outfit 1 is provided with extension 7,
The diameter of extension 7 is less than the diameter of the lower upper end of dropping funnel 2, and the extension 7 is extended downwardly into inside the lower tube wall of dropping funnel 2, described to wear
It is interference fitted between the outer wall of extension 7 and the upper end inwall of lower dropping funnel 2 of thorn device 1 lower end.
Further, the edge of the upper chimb 4 and the edge of lower chimb 5, which are equipped with, is easy to collar 3 to block after being molded
The step 8 of conjunction, the upper surface of the upper chimb 4 flush with the upper surface of the collar 3, the lower surface of the lower chimb 5 and institute
The lower surface for stating collar 3 flushes.
Further, a kind of manufacture method of solvent-free transfusion system structure, step are：
Step 1, by 1 independent injection molding of puncture outfit, by lower 2 independent injection molding of dropping funnel；
Step 2, the puncture outfit 1 of injection formed and lower dropping funnel 2 are extended downwardly into down by the bottom extension of puncture outfit 1
In the upper end tube wall of dropping funnel 2, after interference fit, it is put into the die cavity 9 and core rod 10 of injection collar；
Step 3, making the lower surface of die cavity 9, core rod 10 is upward downwardly against the upper surface of the upper chimb 4 of the puncture outfit 1
The lower surface of lower chimb 4 is propped up, while the upper end of the side of core rod 10 props up upwardly the lower surface of die cavity 9, in die cavity 9 and core rod
10 binding faces, which are provided with, leads to submarine sprue 11 on the periphery of collar 3, and core rod 10 is outside upper chimb 4 and the lower edge of chimb 5
Week and its top and the bottom indwelling have the molding cavity of collar 3, and by injection molding channel 12, sprue 11 injects collar sizing material, and collar 3 is being noted
The puncture outfit 1 and the periphery single injection-molded of lower dropping funnel 2 moulded, after cooling, make the collar 3 of shaping and lower dropping funnel 2 close
Embrace together, not only played sealing function without using chemical adhesive solvent, and avoided the danger that harmful substance enters human body, peace
Full property greatly improves, while greatly reduces production and processing cost, and eliminates pollution of the chemical adhesive solvent to environment, more
Add environmental protection.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications
Limitation.
Claims (3)
- A kind of 1. solvent-free transfusion system structure, it is characterised in that：It includes the puncture outfit on top and the lower dropping funnel of bottom, described to wear Thorn device and lower dropping funnel between be tightly connected by collar, puncture outfit lower end excircle close to end be provided with one circle radially to The upper chimb of outer extension, the upper end excircle of the lower dropping funnel is provided with the lower chimb that a circle extends radially outwardly, described convex The lower surface on side and the upper surface of lower chimb are brought into close contact, and the collar fills in the puncture outfit and lower dropping funnel in injection mold With rear single injection-molded, the collar middle inside is provided with concave inward structure, the upper chimb and lower chimb along its circumferential direction Edge be located in the concave inward structure of the collar, the puncture outfit tube wall bottom is provided with extension, the extension diameter Less than the diameter of lower dropping funnel upper end, the extension is extended downwardly into inside lower dropping funnel tube wall, the extension of the puncture outfit lower end Interference is matched somebody with somebody between outer wall and lower dropping funnel upper end inwallClose.
- A kind of 2. solvent-free transfusion system structure according to claim 1, it is characterised in that：The edge of the upper chimb and The edge of lower chimb be equipped be easy to collar be molded after the step that engages, the upper surface of the upper chimb is upper with the collar End face, the lower surface of the lower chimb flush with the lower surface of the collar.
- A kind of 3. manufacture method of solvent-free transfusion system structure according to claim 2, it is characterised in that：Step 1, by the independent injection molding of puncture outfit, by the independent injection molding of lower dropping funnel；Step 2, the puncture outfit of injection formed and lower dropping funnel are extended downwardly into the upper of lower dropping funnel by the bottom extension of puncture outfit In the tube wall of end, after interference fit, it is put into the die cavity and core rod of injection collar；Step 3, making the lower surface of die cavity, core rod props up down convex upwards downwardly against the upper surface of the upper chimb of the puncture outfit The lower surface on side, while the upper end of core rod side props up upwardly the lower surface of die cavity, in die cavity with being provided with core rod binding face Lead to submarine sprue on collar periphery, core rod has collar close to upper chimb and lower collar edges periphery and its top and the bottom indwelling Molding cavity, by injection molding channel, sprue injection collar sizing material, collar is in the puncture outfit of injection formed and the outer Monday of lower dropping funnel Secondary injection molding, after cooling, make the collar of shaping together with close armful of lower dropping funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215451.7A CN107789699A (en) | 2017-11-28 | 2017-11-28 | A kind of solvent-free transfusion system structure and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215451.7A CN107789699A (en) | 2017-11-28 | 2017-11-28 | A kind of solvent-free transfusion system structure and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107789699A true CN107789699A (en) | 2018-03-13 |
Family
ID=61536865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215451.7A Withdrawn CN107789699A (en) | 2017-11-28 | 2017-11-28 | A kind of solvent-free transfusion system structure and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107789699A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200308933Y1 (en) * | 2002-11-21 | 2003-03-31 | 이용학 | Sealing cap for a liquid-containing pack |
| CN203001553U (en) * | 2012-12-24 | 2013-06-19 | 鹰潭荣嘉集团医疗器械实业有限公司 | Disposable burette-type infusion set |
| 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 |
| CN103830795A (en) * | 2012-11-22 | 2014-06-04 | 邹浩然 | Disposable automatic liquid stopping infusion set |
| CN209108262U (en) * | 2017-11-28 | 2019-07-16 | 苏州联开精密模具有限公司 | A kind of solvent-free transfusion system structure |
-
2017
- 2017-11-28 CN CN201711215451.7A patent/CN107789699A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200308933Y1 (en) * | 2002-11-21 | 2003-03-31 | 이용학 | Sealing cap for a liquid-containing pack |
| CN103830795A (en) * | 2012-11-22 | 2014-06-04 | 邹浩然 | Disposable automatic liquid stopping infusion set |
| CN203001553U (en) * | 2012-12-24 | 2013-06-19 | 鹰潭荣嘉集团医疗器械实业有限公司 | Disposable burette-type infusion set |
| 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 |
| CN209108262U (en) * | 2017-11-28 | 2019-07-16 | 苏州联开精密模具有限公司 | A kind of solvent-free transfusion system structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180313 |
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| WW01 | Invention patent application withdrawn after publication |