CN106963990A - A kind of bourdon tube with PE coatings and preparation method thereof - Google Patents
A kind of bourdon tube with PE coatings and preparation method thereof Download PDFInfo
- Publication number
- CN106963990A CN106963990A CN201710295106.2A CN201710295106A CN106963990A CN 106963990 A CN106963990 A CN 106963990A CN 201710295106 A CN201710295106 A CN 201710295106A CN 106963990 A CN106963990 A CN 106963990A
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- CN
- China
- Prior art keywords
- bourdon tube
- coatings
- mdpe
- hdpe
- preparation
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/06—Coatings containing a mixture of two or more compounds
Abstract
The invention belongs to medical Minimally Invasive Surgery bourdon tube technical field, a kind of bourdon tube with PE coatings, including bourdon tube main body and the PE coatings for being coated on the bourdon tube body exterior, the PE coating materials are HDPE and MDPE, wherein HDPE mass fractions are 70%~80%, and the MDPE mass fractions are 20% 30%.Bourdon tube surface is smooth in the application, good hand touch, and in doctor's operating process, resistance is small during insertion, and smooth surface can mitigate the pain caused by bourdon tube surface is scraped with gastrointestinal wall in patient's surgical procedure.Other PE superficies can print zebra stripes, visibility when improving insertion.The application bourdon tube is neither too hard, nor too soft, there is certain intensity and ductility, both can guarantee that insertion process was difficult bending, bourdon tube can be also facilitated to enter after human body simultaneously, bourdon tube can the real-time bending with the change in endoscope channel direction, pincers road recover straight state when, bourdon tube recovers automatically.
Description
Technical field
The invention belongs to minimally invasive medical procedures bourdon tube technical field, more particularly to a kind of bourdon tube with PE coatings
And preparation method thereof.
Background technology
Minimally Invasive Surgery bourdon tube, is using the smooth bourdon tube of the small external diameter of stainless steel silk thread production.Such a bullet
Reed pipe is the key components of sample pickup tongs product, and sample pickup tongs product is widely used in the gastroscope in medicine equipment and colonoscopy inspection
In looking into and treating, main function is the gripping to pathological tissues in human body alimentary canal, to chemically examine tissue, while also may be used
To be taken out to the polyp or foreign matter in alimentary canal
The bourdon tube that the country is used at present is based on naked pipe, and the bourdon tube for coating PE coatings is still domestic blank, naked pipe
Pipe surface is screw thread, insert human body in when and patient gastrointestinal wall scrape it is obvious, cause the discomfort of patient, be unfavorable for hand
The progress of art, simultaneously because spring pipe surface is rough, resistance is larger when bourdon tube insertion Gastrointestinal Endoscopes pincers road, also holds
The pincers road of easy damaged Gastrointestinal Endoscopes, causes unnecessary waste.And due to there is gap between bourdon tube naked pipe silk material, use process
In be easily accessible dirt, be not easily cleaned, easily cause the cross-infection between patient, it is impossible to reuse, so as to cause material
The problems such as waste.
The content of the invention
The bourdon tube existed to solve prior art is difficult insertion, and patient will bear larger painful defect, and the present invention is carried
For a kind of bourdon tube with PE coatings.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of bourdon tube with PE coatings, bag
Include bourdon tube main body and be coated on the PE coatings of the bourdon tube body exterior, the PE coating materials are HDPE and MDPE, its
Middle HDPE mass fractions are 70%~80%, and the MDPE mass fractions are 20%-30%.
Preferably, the described HDPE trades mark are 5306J, the described MDPE trades mark are TR-130.
The preparation method of the above-mentioned bourdon tube with PE coatings, step is as follows：After HDPE raw materials and MDPE raw materials are mixed
Extruder is added, is extruded at die head, and with the bourdon tube body contact from die head pass-out, the effect through traction moves ahead, through water
The bourdon tube with PE coatings is formed after cold.
Further, each section of temperature setting of described extruder is respectively 170 DEG C, 190 DEG C, 220 DEG C, 250 DEG C and 270
℃。
Preferably, described extruder extruded velocity is 150m/min, the hauling speed is 300m/min.
Preferably, after the die head extrusion of described HDPE raw materials and the extruded machine of MDPE raw materials in front of die head 12~
With the bourdon tube body contact at 17mm.
Further, the water cooling position is located in front of the die head at 1~1.5m after extrusion, and for the tank of water cooling
Length is 0.8-1.2m.The material that extruder is extruded at 1~1.5m temperature after natural cooling is reduced to 120 DEG C, then enters water-filling
It is cold, it is to avoid to cool before water cooling too fast.
Further, the HDPE raw materials and the thickness of the compound of MDPE raw materials extruded in die orifice are 1.4~1.5mm,
The PE coating layer thicknesses of bourdon tube with PE coatings are 0.08mm-0.12mm.
Beneficial effect：PE outer layers are added on the basis of conventional springs pipe naked pipe in the application, surface is smooth, feel
Good, resistance is small during insertion, not the pincers road of easy damaged Gastrointestinal Endoscopes, and surface simultaneously, smooth can mitigate scrapes to patient's gastrointestinal wall
Wipe, so that the discomfort during reducing corrective surgery, while dirt will not enter inside bourdon tube, easy to clean can repeat to make
With.And zebra stripes can be printed in PE superficies, visibility when improving insertion is easy to medical personnel to operate.The application has
There is the bourdon tube of PE coatings neither too hard, nor too soft, have certain intensity and ductility, in doctor's operating process, both can guarantee that and inserted
Cheng Buyi bendings, while can also facilitate bourdon tube to enter after human body, bourdon tube can be with the change in endoscope channel direction
Real-time bending, when pincers road recovers straight state, bourdon tube recovers automatically.The application product and preparation method have filled up domestic sky
In vain, it is domestic unique.
Embodiment
Embodiment 1
The MDPE master batches that the HDPE master batches and the trade mark for being 5306J by the trade mark are TR-130 are with 7:3 mass ratio mixing, will
By screw extruder melting extrusion, each section of temperature setting of extruder is 170 DEG C, 190 DEG C, 220 DEG C, 250 DEG C and 270 DEG C.It is mixed
The extruded machine of compound material die head extrusion, and with the bourdon tube body contact of the plug center pass-out in die head, and traction
The lower stretching and drawing of power effect, wherein the material extruded is contacted with bourdon tube main body at the 15mm of die head front portion, the material of extrusion is thick
Spend for 1.4mm, and progressively stretching is coated on bourdon tube body exterior under tractive force effect, the extruded velocity of material is 150m/
Min, hauling speed is 300m/min.Enter tank at the 1.2m of die head front portion in traction drawing process to cool down, tank length
For 1m, wind after cooling, that is, the bourdon tube with PE coatings is made, final PE coating layer thicknesses are 0.1mm.
Embodiment 2
The MDPE master batches that the HDPE master batches and the trade mark for being 5306J by the trade mark are TR-130 are with 3:1 mass ratio mixing, will
By screw extruder melting extrusion, each section of temperature setting of extruder is 170 DEG C, 190 DEG C, 220 DEG C, 250 DEG C and 270 DEG C.It is mixed
The extruded machine of compound material die head extrusion, and with the bourdon tube body contact of the plug center pass-out in die head, and traction
The lower stretching and drawing of power effect, wherein the material extruded is contacted with bourdon tube main body at the 12mm of die head front portion, the material of extrusion is thick
Spend for 1.5mm, and progressively stretching is coated on bourdon tube body exterior under tractive force effect, the extruded velocity of material is 150m/
Min, hauling speed is 300m/min.Enter tank at the 1m of die head front portion in traction drawing process to cool down, tank length is
1.2m, winds after cooling, that is, the bourdon tube with PE coatings is made, and final PE coating layer thicknesses are 0.08mm.
Embodiment 3
The MDPE master batches that the HDPE master batches and the trade mark for being 5306J by the trade mark are TR-130 are with 4:1 mass ratio mixing, will
By screw extruder melting extrusion, each section of temperature setting of extruder is 170 DEG C, 190 DEG C, 220 DEG C, 250 DEG C and 270 DEG C.It is mixed
The extruded machine of compound material die head extrusion, and with the bourdon tube body contact of the plug center pass-out in die head, and traction
The lower stretching and drawing of power effect, wherein the material extruded is contacted with bourdon tube main body at the 17mm of die head front portion, the material of extrusion is thick
Spend for 1.5mm, and progressively stretching is coated on bourdon tube body exterior under tractive force effect, the extruded velocity of material is 150m/
Min, hauling speed is 300m/min.Enter tank at the 1.5m of die head front portion in traction drawing process to cool down, tank length
For 0.8m, wind after cooling, that is, the bourdon tube with PE coatings is made, final PE coating layer thicknesses are 0.12mm.
Comparative example 1
The HDPE raw material trades mark in embodiment 1 are changed to Q281, other be the same as Examples 1.
Bourdon tube with PE coatings prepared by embodiment 1~3 is enclosed around the circumference one of unitary coin, spring pipe surface PE
Coating will not ftracture, and can recover former vertical state immediately after unclamping, and the bullet with PE coatings prepared in comparative example 1
Reed pipe can not recover former vertical state immediately after the circle release of circumference one of unitary coin.In addition, through Experimental comparison, embodiment 1
~3 spring pipe surfaces with PE coatings prepared are smooth, and feel is preferable, and more smooth when inserting stomach mirror pincers road, and
Bourdon tube can keep good vertical state when being inserted while elasticity is ensured, be difficult bending, be conducive to insertion；And contrast
Bourdon tube with PE coatings prepared by file 1, feel is not smooth enough, and the frictional resistance for clamping road with stomach mirror during insertion is larger,
It is difficult to insert, and the easy bending of bourdon tube in insertion, it is impossible to vertical state is kept, insertion is difficult, operation inconvenience.
Claims (8)
1. a kind of bourdon tube with PE coatings, it is characterised in that：Including bourdon tube main body and being coated on the bourdon tube main body
Outside PE coatings, the PE coating materials are HDPE and MDPE, and wherein HDPE mass fractions are 70%~80%, the MDPE
Mass fraction is 20%-30%.
2. the bourdon tube according to claim 1 with PE coatings, it is characterised in that：The described HDPE trades mark are 5306J,
The described MDPE trades mark are TR-130.
3. the preparation method of the bourdon tube according to claim 1 or 2 with PE coatings, it is characterised in that：HDPE is former
Material and MDPE raw materials mixing after add extruder, at die head extrude, and with the bourdon tube body contact from die head pass-out, through leading
The effect drawn moves ahead, water cooled rear bourdon tube of the formation with PE coatings.
4. the preparation method of the bourdon tube according to claim 3 with PE coatings, it is characterised in that：Described extruder
Each section of temperature setting is respectively 170 DEG C, 190 DEG C, 220 DEG C, 250 DEG C and 270 DEG C.
5. the preparation method of the bourdon tube with PE coatings according to claim 3 or 4, it is characterised in that：Described squeezes
Go out machine extruded velocity for 150m/min, the hauling speed is 300m/min.
6. the preparation method of the bourdon tube according to claim 5 with PE coatings, it is characterised in that：Described HDPE is former
After the die head extrusion of material and the extruded machine of MDPE raw materials at 12~17mm in front of die head and the bourdon tube body contact.
7. the preparation method of the bourdon tube according to claim 3 with PE coatings, it is characterised in that：Described water cooling position
At 1~1.5m in front of the die head, and the tank length of water cooling is 0.8-1.2m.
8. the preparation method of the bourdon tube according to claim 3 with PE coatings, it is characterised in that：Extruded in die orifice
HDPE raw materials and MDPE raw materials compound thickness be 1.4~1.5mm, the PE coating layer thicknesses of the bourdon tube with PE coatings
For 0.08-0.12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295106.2A CN106963990B (en) | 2017-04-28 | 2017-04-28 | Spring tube with PE coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295106.2A CN106963990B (en) | 2017-04-28 | 2017-04-28 | Spring tube with PE coating and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106963990A true CN106963990A (en) | 2017-07-21 |
| CN106963990B CN106963990B (en) | 2020-09-29 |
Family
ID=59331010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710295106.2A Active CN106963990B (en) | 2017-04-28 | 2017-04-28 | Spring tube with PE coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106963990B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1630542A (en) * | 2002-02-27 | 2005-06-22 | 株式会社钟化 | Balloon catheter for tentative vaso-occlusion |
| US20060093769A1 (en) * | 2004-10-29 | 2006-05-04 | Ghislain Biebuyck | Multilayer tube assembly and methods for forming and using the same |
| CN204820273U (en) * | 2015-07-31 | 2015-12-02 | 巴拉斯塑胶（苏州）有限公司 | Periosteum material feeding unit of spring pipe |
-
2017
- 2017-04-28 CN CN201710295106.2A patent/CN106963990B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1630542A (en) * | 2002-02-27 | 2005-06-22 | 株式会社钟化 | Balloon catheter for tentative vaso-occlusion |
| US20060093769A1 (en) * | 2004-10-29 | 2006-05-04 | Ghislain Biebuyck | Multilayer tube assembly and methods for forming and using the same |
| CN204820273U (en) * | 2015-07-31 | 2015-12-02 | 巴拉斯塑胶（苏州）有限公司 | Periosteum material feeding unit of spring pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106963990B (en) | 2020-09-29 |
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Address after: No.8, Huixin Road, Zhongshan Science Park, Liuhe District, Nanjing City, Jiangsu Province Patentee after: Jiangsu Kanghong Medical Technology Co.,Ltd. Address before: No.8, Huixin Road, Zhongshan Science Park, Liuhe District, Nanjing City, Jiangsu Province Patentee before: JIANGSU KANGHONG METAL HOSE Co.,Ltd. |