CN101817235A - Molding method of saccule and round-sharp head of silicon rubber saccule urinary catheter - Google Patents
Molding method of saccule and round-sharp head of silicon rubber saccule urinary catheter Download PDFInfo
- Publication number
- CN101817235A CN101817235A CN201010161636A CN201010161636A CN101817235A CN 101817235 A CN101817235 A CN 101817235A CN 201010161636 A CN201010161636 A CN 201010161636A CN 201010161636 A CN201010161636 A CN 201010161636A CN 101817235 A CN101817235 A CN 101817235A
- Authority
- CN
- China
- Prior art keywords
- round
- sharp head
- saccule
- sacculus
- thin
- 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.)
- Pending
Links
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses a molding method of a saccule and a round-sharp head of a silicon rubber saccule urinary catheter, which comprises the following steps of: integrally molding the cylindrical thin-wall saccule and round-sharp head forming the silicon rubber urinary catheter by molding in one step; or soaking the die, and then injecting the silicon rubber to the top to form the round-sharp head and obtain the integral cylindrical thin-wall saccule and round-sharp head. The invention has the following advantages of accurate location between the saccule and the round-sharp head, easy fixation with dual-cavity or three-cavity silicon rubber tube, time-saving operation, high production efficiency and low cost. Compared with the saccule and the round-sharp head separately molded and fixed, the round-sharp head never fall off from the dual-cavity or three-cavity silicon rubber tube, and the saccule urinary catheter is perfectly integrated from the saccule to the round-sharp head, with high quality, low cost and low rejection rate.
Description
Technical field
The present invention relates to the preparation method of silicone rubber saccule catheter, particularly the forming method of the sacculus of silicone rubber saccule catheter and round-sharp head.
Background technology
Saccule urinary catheter is normally made by natural emulsion or these two kinds of materials of silicon rubber.The biocompatibility of silicon rubber is better than natural emulsion, and not only the transparency height is less to the adhesiveness of hematoglobin protein, and biocidal property is good, is not prone to the plugging phenomenon, and the wound that causes during tube drawing is much smaller than the natural emulsion catheter.
At present, the manufacture method of natural emulsion saccule urinary catheter is from pipe shaft, sacculus, round-sharp head all adopts dip forming to the back vent that check valve is installed, and its sacculus is shaped to earlier tubular separately, be enclosed within the catheter front end again, through being impregnated into the thickness of requirement repeatedly, sulfuration at last forms.Moulding process, the two-chamber after extruding or three lumen cut-to-lengths that the two-chamber of silicone rubber saccule catheter or the general employing of three lumen pipe shafts are extruded continuously.The moulding respectively of sacculus and round-sharp head, sacculus partly adopt the method for dipping or mold pressing to make the thin-walled tubular, with adhesive its two ends are adhesively secured on silicon rubber two-chamber or three lumens by hand then; It is bonding again or be molded into the catheter front end after round-sharp head is prefabricated.This method adopts adhesive to need a large amount of manual operationss when the sacculus two ends, and is time-consuming, the manufacturing cost height, and also often poor because of the operation homogeneity, it is not firm to bond, and influences product quality, causes effusion to embody and resembles.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, and a kind of method of sacculus and round-sharp head integrated molding of silicone rubber saccule catheter is provided.This method preparation technology is simple, the efficient height, and cost is low, and good product quality, can not occur because of the not firm phenomenon that fluid seepage occurs of bonding.
Purpose of the present invention realizes by following technical proposals:
The sacculus of silicone rubber saccule catheter of the present invention and the forming method of round-sharp head are: the tube-like thin-wall sacculus and the round-sharp head that will constitute silica fubber cathete earlier adopt disposable mold pressing integrated molding, perhaps flood integrated molding, promptly make the tube-like thin-wall sacculus and the round-sharp head that are connected as a single entity with mould.
Disposable mold pressing integrated molding is divided into injection-molding moulding or dull and stereotyped transfer molding moulding, and forming method comprises the steps:
(1) mould that is connected as a single entity of preparation tube-like thin-wall sacculus and round-sharp head is standby;
(2) it is mixing C6-135 bi-component methyl vinyl silicone rubber to be passed through rubber mixing mill, then thin-pass, following sheet;
(3) inject the mould that the tube-like thin-wall sacculus perform in advance and round-sharp head are connected as a single entity, disposable injection-molding moulding or dull and stereotyped transfer molding moulding promptly make the tube-like thin-wall sacculus and the round-sharp head that are connected as a single entity.
Described injection-molding moulding or dull and stereotyped transfer molding moulding, molding technological condition is: pressure: 10-80Mpa; Temperature: 120-140 ℃; Time: 10-30min; Former is 25 tons of-100 tons of vulcanizing presses or rubber injection moulding machines.
The sacculus of the another kind of silicone rubber saccule catheter of the present invention and the forming method of round-sharp head are the dipping integrated molding, be that tube-like thin-wall sacculus that fuses and the round-sharp head plug mould that will make in advance places the silicone rubber solution for preparing, adopt infusion process through dipping, sulfidization molding, inject silicon rubber at its top then and form round-sharp head, promptly make the tube-like thin-wall sacculus and the round-sharp head that are connected as a single entity.This forming method comprises the steps:
(1) preparation tube-like thin-wall sacculus dipping plug mould, the plug mould adopts stainless steel or spring steel preparation;
(2) preparation maceration extract: the concentration of silicone rubber solution is 5%～20%;
(3) dipping: dipping number of times 3～9 times;
(4) sulfuration: conditions of vulcanization: 110-140 ℃ * 20-40min,
(5) inject silicon rubber at the round-sharp head position after the moulding, form round-sharp head, promptly make the tube-like thin-wall sacculus and the round-sharp head that are connected as a single entity.
Advantage of the present invention is: tube-like thin-wall sacculus and round-sharp head integrated molding, then with adhesive on two-chamber or three chamber silicone rubber tubes, sacculus and round-sharp head accurate positioning each other like this, with fixing easily of two-chamber or three chamber silicone rubber tubes, operation saves time, the production efficiency height, and cost is low; With sacculus and round-sharp head respectively separately moulding fixedly compare, preparation method's of the present invention round-sharp head can not come off from two-chamber or three chamber silicone rubber tubes, and saccule urinary catheter from the sacculus to the round-sharp head between one integrated mass, product quality height, cost are low, percent defective is low.
The specific embodiment
Embodiment 1
A kind of preparation method's step of integrated compression molding catheter tube-like thin-wall sacculus and round-sharp head that adopts is:
(1) the tube-like thin-wall sacculus that is connected as a single entity of preparation earlier and the mould of round-sharp head;
(2) C6-135 bi-component methyl vinyl silicone rubber is mixing at rubber mixing mill, through thin-pass, following sheet;
(3) the described mould of implantation step (1), compression molding on 50 tons of vulcanizing presses or rubber injection moulding machine, molding technological condition is: pressure: 25Mpa; Temperature: 120 ℃; Time: 15min.
When making silica fubber cathete, only need to adopt adhesive that the above-mentioned tube-like thin-wall sacculus that is connected as a single entity and round-sharp head are fixed to two-chamber or the three chamber diversion cavity sacculus water filling tube chamber silicone rubber tubes of extruding cut-to-length and get final product on one's body.
Embodiment 2
A kind of preparation method's step of integrated dip forming catheter tube-like thin-wall sacculus and round-sharp head that adopts is:
(1) makes tube-like thin-wall sacculus dipping plug mould with stainless steel;
(2) employing concentration is that 15% C6-135 bi-component methyl vinyl silicone rubber solution is dipping solution;
(3) the dipping number of times is 5 times;
(4) be 120 ℃ of sulfuration 30min down in temperature, after the moulding;
(5) inject silicon rubber at tube-like thin-wall sacculus top, form round-sharp head, promptly make the tube-like thin-wall sacculus and the round-sharp head that are connected as a single entity.
All the other are with embodiment 1.
Claims (4)
1. the forming method of the sacculus of silicone rubber saccule catheter and round-sharp head comprises injection-molding moulding and dull and stereotyped transfer molding moulding, and it is characterized in that: forming method comprises the steps:
(1) mould that is connected as a single entity of preparation tube-like thin-wall sacculus and round-sharp head is standby;
(2) it is mixing C6-135 bi-component methyl vinyl silicone rubber to be passed through rubber mixing mill, then thin-pass, following sheet;
(3) inject the mould that the tube-like thin-wall sacculus perform in advance and round-sharp head are connected as a single entity, disposable injection-molding moulding or dull and stereotyped transfer molding moulding promptly make the tube-like thin-wall sacculus and the round-sharp head that are connected as a single entity.
2. forming method according to claim 1 is characterized in that: the process conditions of injection-molding moulding and dull and stereotyped transfer molding moulding are: pressure: 10-80Mpa; Temperature: 120-140 ℃; Time: 10-30min; Former is 25 tons of-100 tons of vulcanizing presses or rubber injection moulding machines.
3. the forming method of the sacculus of silicone rubber saccule catheter and round-sharp head comprises dip forming, it is characterized in that: the forming method of dip forming comprises the steps:
(1) preparation tube-like thin-wall sacculus dipping plug mould;
(2) prepare silicon rubber impregnated liquid;
(3) dipping;
(4) sulfuration;
(5) inject silicon rubber at the round-sharp head position after the moulding, form round-sharp head, promptly make the tube-like thin-wall sacculus and the round-sharp head that are connected as a single entity.
4. forming method according to claim 3 is characterized in that: described plug mould adopts stainless steel or spring steel preparation; The concentration of silicon rubber maceration extract is 5%～20%; Dipping number of times 3～9 times; Conditions of vulcanization: 110-140 ℃ * 20-40min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010161636A CN101817235A (en) | 2010-05-02 | 2010-05-02 | Molding method of saccule and round-sharp head of silicon rubber saccule urinary catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010161636A CN101817235A (en) | 2010-05-02 | 2010-05-02 | Molding method of saccule and round-sharp head of silicon rubber saccule urinary catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101817235A true CN101817235A (en) | 2010-09-01 |
Family
ID=42652577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010161636A Pending CN101817235A (en) | 2010-05-02 | 2010-05-02 | Molding method of saccule and round-sharp head of silicon rubber saccule urinary catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101817235A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936413A (en) * | 2012-10-31 | 2013-02-20 | 浙江优特格尔医疗用品有限公司 | Silica gel catheter sacculus with high tear strength and preparation method thereof |
| CN108939258A (en) * | 2018-05-02 | 2018-12-07 | 苏州贝恩医疗器械有限公司 | A kind of preparation process and purposes of double channel catheter |
-
2010
- 2010-05-02 CN CN201010161636A patent/CN101817235A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936413A (en) * | 2012-10-31 | 2013-02-20 | 浙江优特格尔医疗用品有限公司 | Silica gel catheter sacculus with high tear strength and preparation method thereof |
| CN108939258A (en) * | 2018-05-02 | 2018-12-07 | 苏州贝恩医疗器械有限公司 | A kind of preparation process and purposes of double channel catheter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102529046B (en) | Macromolecule plastic membrane pressure process injection molding system and the method for forming | |
| CN101817235A (en) | Molding method of saccule and round-sharp head of silicon rubber saccule urinary catheter | |
| CN206048680U (en) | Windscreen curing forming mold in a kind of bullet train group annular | |
| CN104441714B (en) | Molding technology of bending connection pipe | |
| CN201597163U (en) | Ultrathin plastic spectacle frame moulding mould | |
| CN202640733U (en) | Water pipe material mold extrusion interchange mechanism | |
| CN201597154U (en) | Vented needle base die capable of producing multiple cavities at one time and vented needle base thereof | |
| CN207140222U (en) | A kind of plastic-injection moulding machine feeding device | |
| CN206393995U (en) | A kind of silica gel vulcanization plant | |
| CN101767447B (en) | Molding method and processing equipment of polytetrafluoroethylene plastic elbow | |
| CN204658836U (en) | A kind of bicolor injection mould | |
| CN203694246U (en) | Safety type blow molding dripping bucket module | |
| CN202985872U (en) | Drain pipe elbow die | |
| CN208305590U (en) | Plastics nasal cavity tube post-forming process mold | |
| CN203438460U (en) | Injection device of injection molding machine | |
| CN207495968U (en) | A kind of silicon rubber dimorphism pipe Integral molding device for insoles | |
| CN208759966U (en) | A kind of five cavities conduit pipes extrusion head | |
| CN202378244U (en) | Novel injection mould | |
| CN202985962U (en) | Plastic mold of three-way connector | |
| CN204095031U (en) | Catheter sacculus and round-sharp head integrated molding mould | |
| CN201833514U (en) | Fixed air-sac mould without joint line | |
| CN205853322U (en) | A kind of Novel extrusion mould | |
| CN203937126U (en) | Engine charge pipe mold | |
| CN109278263A (en) | A kind of embedding and injection molding device of automobile taillight lampshade | |
| CN204773398U (en) | Runner device is cut to plastic part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100901 |