CN109567726A - A kind of novel pincers deferent - Google Patents
A kind of novel pincers deferent Download PDFInfo
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- CN109567726A CN109567726A CN201811545992.0A CN201811545992A CN109567726A CN 109567726 A CN109567726 A CN 109567726A CN 201811545992 A CN201811545992 A CN 201811545992A CN 109567726 A CN109567726 A CN 109567726A
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- Prior art keywords
- layer
- deferent
- pincers deferent
- wall middle
- heavy wall
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- 210000000080 chela (arthropods) Anatomy 0.000 title claims abstract description 55
- 239000010410 layer Substances 0.000 claims description 190
- 239000012790 adhesive layer Substances 0.000 claims description 37
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 37
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 37
- 238000004804 winding Methods 0.000 claims description 29
- -1 polytetrafluoroethylene Polymers 0.000 claims description 26
- 229920002635 polyurethane Polymers 0.000 claims description 26
- 239000004814 polyurethane Substances 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000002356 single layer Substances 0.000 claims description 8
- 238000004381 surface treatment Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 238000005452 bending Methods 0.000 description 12
- 238000009832 plasma treatment Methods 0.000 description 11
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- 238000000034 method Methods 0.000 description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 206010011409 Cross infection Diseases 0.000 description 3
- 206010029803 Nosocomial infection Diseases 0.000 description 3
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229920006266 Vinyl film Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
-
- 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
- A61L31/04—Macromolecular materials
- A61L31/048—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- A61L31/04—Macromolecular materials
- A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
Abstract
The present invention relates to medical device fields, provide a kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；The transparent inner layer, heavy wall middle layer, outer layer thickness ratio be 1:(10~20): (3~10).
Description
Technical field
The invention belongs to medical device fields, in particular to a kind of tong deferent.
Background technique
Endoscope is a kind of very widely used medical instrument, is directly inserted into human body and carries out observation and diagnosis and treatment disease
Disease.As the component for initially entering human body, performance and the patient of endoscope are directly affected positioned at the leading end portion of its front end
Comfort.The leading end portion of fujinon electronic video endoscope includes the structures such as imaging sensor, optical lens, lighting source, pincers deferent.Clamp deferent
The channel of biopsy forceps and therapeutic device in endoscopy and therapeutic process, in scope use process clamp deferent be easiest to by
To the position of pollution., cannot be disposable because endoscope is expensive, so disinfection and cleaning requirement to endoscope are very
It is high.But there is many difficult, the disinfection especially to more serious elongated pincers deferent is polluted again in actual sterilizing operation,
It is only still not exclusively reliable by conscientious careful immersion and flushing etc..If cleaning and disinfection are incomplete, it is easy to cause between patient
Cross-infection therefore manually clean very necessary.
Currently, existing pincers deferent is double-layer structure, and only make two layers of material using pyrocondensation method between double-layer structure
Material combines, and still, after prolonged use, this double-layer structure can become not close insecure to pincers deferent, to can cause
The problem of leak gas leakage, in addition, it is readily incorporated dirt in pincers two layers of junction of deferent, but elongated pincers deferent is difficult to clean and disappears
Poison is not perfect, directly very big injury can be caused to the health of human body to be easy to produce cross-infection by contact human body.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of novel pincers deferent, structure includes at least three layers:
Transparent inner layer, heavy wall middle layer, outer layer；The transparent inner layer, heavy wall middle layer, outer layer thickness ratio be 1:(10~20): (3
~10).
As a kind of perferred technical scheme, heretofore described transparent inner layer, heavy wall middle layer substrate be polytetrafluoroethyl-ne
Alkene.
As a kind of perferred technical scheme, the outer surface of heretofore described transparent inner layer will be surface-treated.
As a kind of perferred technical scheme, there is one layer of bonding between heretofore described transparent inner layer and heavy wall middle layer
Layer.
As a kind of perferred technical scheme, heretofore described adhesive layer is polyurethane adhesive layer.
As a kind of perferred technical scheme, heretofore described polyurethane adhesive layer with a thickness of 0.01~0.05mm.
As a kind of perferred technical scheme, it is that polytetrafluoroethylene film twines that heretofore described outer layer, which is the outer layer,
Winding layer.
As a kind of perferred technical scheme, heretofore described polytetrafluoroethylene (PTFE) winding layer is polytetrafluoroethylene film single layer
Rotation is wrapped in heavy wall middle layer outer surface.
As a kind of perferred technical scheme, heretofore described polytetrafluoroethylene film winding layer is heat-treated；It is described
Heat treatment temperature is 200~300 DEG C, and the time is 0.3~1h.
As a kind of perferred technical scheme, bourdon tube is installed on the outside of one end of heretofore described pincers deferent.
The utility model has the advantages that providing a kind of novel pincers deferent in the present invention, there is three-decker, and between layers by
In in the present invention carry out specially treated after combine it is even closer securely, not only can bring leakage to avoid due to prolonged use
The problem of water gas leakage, will not also be such that dirt is embedded in pollute at the gap combined between layers, therefore can to clamp road
Pipe cleaning and disinfection treatment ratio more thoroughly with it is perfect, substantially reduce dirt and virus etc. directly contact human body be easy and generate friendship
The risk for pitching infection, avoids damaging the health of human body.In addition, pincers deferent of the present invention has special three-decker
Very excellent elasticity and bending property are made it have, there are also very soft feels, and clamp and be mounted with bullet on the outside of deferent
Reed pipe, further enhance pincers deferent bendability, facilitate pincers deferent use and enhance pincers deferent layer by layer between it is secured
Property.It is also possible to prepare the pincers deferent of different transparencies according to demand.
The above content and other features, aspects and advantages being easier to understand with reference to following details in the application.
Detailed description of the invention
Fig. 1 is the resulting pincers deferent pictorial diagram of embodiment 1；
Fig. 2 is the resulting pincers deferent cross-sectional view of embodiment 1；
Fig. 3 is the resulting pincers deferent diagrammatic cross-section of embodiment 1；
Fig. 4 is the resulting rough schematic of embodiment 1.
1 it is transparent inner layer shown in Fig. 2, Fig. 3, Fig. 4,2 be heavy wall middle layer, 3 be outer layer, 4 is bourdon tube；
Fig. 5 is to bend to the corral bending dynamics test method that diameter is 20cm；
Fig. 6 is to bend to the corral bending dynamics test method that diameter is 5cm；
Fig. 7 is gas leakage test method.
Specific embodiment
For the purpose of following detailed description, it should be understood that the present invention can be used various substitutions variation and step it is suitable
Sequence, unless specifically stated on the contrary.In addition, being indicated in the case where in addition in any operational instances or otherwise pointing out
Such as all numbers of the amount of ingredient used in description and claims should be understood in all cases by term
" about " it modifies.Therefore, unless indicated to the contrary, the numerical parameter otherwise illustrated in the following description and appended dependent claims is root
The approximation changed according to the expected performance of the invention to be obtained.It is at least not intended to for the applicable of doctrine of equivalents being limited in
In the scope of the claims, each numerical parameter should at least be given up according to the number of the effective digital of report and by the way that application is common
Enter technology to explain.
Although illustrating that broad range of numberical range and parameter of the invention are approximations, listed in specific example
Numerical value is reported as accurately as possible.However, any numerical value inherently includes the standard deviation by finding in its each self-test measurement
The certain errors necessarily led to.
When a numberical range disclosed herein, above range is considered as continuously, and the minimum value including the range and most
Big value and each value between this minimum value and maximum value.Further, when range refers to integer, including the model
Each integer between minimum value and maximum value enclosed.In addition, when providing multiple range Expressive Features or characteristic, Ke Yihe
And the range.In other words, unless otherwise specified, otherwise all ranges disclosed herein are understood to include and are wherein included into
Any and all subrange.For example, should be regarded as including between minimum value 1 and maximum value 10 from the specified range of " 1 to 10 "
Any and all subrange.The Exemplary range of range 1 to 10 include but is not limited to 1 to 6.1,3.5 to 7.8,5.5 to
10 etc..
The present invention provides a kind of novel pincers deferents, and structure is including at least three layers: transparent inner layer, heavy wall middle layer, outside
Layer；The transparent inner layer, heavy wall middle layer, outer layer thickness ratio be 1:(10~20): (3~10).
In some embodiments, heretofore described transparent inner layer, heavy wall middle layer, outer layer thickness ratio be 1:(13
~18): (5~8)；Preferably, the transparent inner layer, heavy wall middle layer, outer layer thickness ratio be 1:(15~17): (6~7)；
It is furthermore preferred that the transparent inner layer, heavy wall middle layer, outer layer thickness ratio be 1:16:6.5.
In some embodiments, heretofore described transparent inner layer, heavy wall middle layer substrate be polytetrafluoroethylene (PTFE).
In some embodiments, the apparent density of heretofore described polytetrafluoroethylene (PTFE) is greater than 0.40g/cm3；The table
The test method for seeing density is ASTM D4895.
In some embodiments, heretofore described polytetrafluoroethylene (PTFE) can selected from PTFE/F-201, PTFE/F-205,
One of PTFE/F-208 or a variety of；Preferably, the polytetrafluoroethylene (PTFE) can be selected from PTFE/F-201.
In some embodiments, the outer surface of heretofore described transparent inner layer will be surface-treated.
In some embodiments, heretofore described surface treatment is selected from Corona Surface Treatment, plasma treatment, electrostatic
One of spraying, laser treatment method, electrolytic reduction, high-temperature melting method, chemical treatment are a variety of；Preferably, the surface
Processing is selected from one of Corona Surface Treatment, plasma treatment, high-temperature melting method or a variety of；It is furthermore preferred that at the surface
Reason is selected from Corona Surface Treatment, plasma treatment；Highly preferred, the surface treatment is plasma treatment.
In some embodiments, there is one layer of adhesive layer between heretofore described transparent inner layer and heavy wall middle layer.
In some embodiments, heretofore described adhesive layer is polyurethane adhesive layer.
In some embodiments, heretofore described polyurethane adhesive layer with a thickness of 0.01~0.05mm；Preferably,
The polyurethane adhesive layer with a thickness of 0.02~0.04mm；It is furthermore preferred that the polyurethane adhesive layer with a thickness of 0.03mm.
From the Guan County fort good fortune Lai Chemical Co., Ltd., the trade mark is Tao Shi ROHM AND HAAS for heretofore described polyurethane purchase,
It can also buy from other sources.
In some embodiments, outer layer of the present invention is polytetrafluoroethylene film winding layer.
In some embodiments, polytetrafluoroethylene film winding layer of the present invention is that the rotation of polytetrafluoroethylene film single layer is wrapped up in
Overlay on heavy wall middle layer outer surface.
Heretofore described polytetrafluoroethylene film is commercially available from Zhuzhou day Feng Huaxue plastic cement Co., Ltd, also can purchase from it
His company.
In some embodiments, polytetrafluoroethylene film winding layer of the present invention is heat-treated；The heat treatment temperature
Degree is 200~300 DEG C, and the time is 0.3~1h.
In some preferred embodiments, heretofore described heat treatment temperature be 220~280 DEG C, the time be 0.4~
0.8h。
In some preferred embodiments, heretofore described heat treatment temperature is 240~260 DEG C, the time 0.5
~0.7h.
In some highly preferred embodiments, heretofore described heat treatment temperature is 250 DEG C, time 0.6h.
In some embodiments, bourdon tube is installed on the outside of one end of heretofore described pincers deferent.
A kind of novel pincers deferent is provided in the present invention, there is three-decker, and between layers due in this hair
After bright middle progress specially treated combine it is even closer securely, not only can bring leak gas leakage to avoid due to prolonged use
Problem will not also make at the gap that combines between layers of dirt insertion to pollute, thus can to clamp deferent cleaning and
The ratio of disinfection treatment more thoroughly with it is perfect, substantially reduce dirt and virus etc. directly contact human body be easy and generate cross-infection
Risk avoids damaging the health of human body.Speculate the possible reason is the present invention is by carrying out at surface transparent inner layer
Reason, so that the polytetrafluoroethylene polymer molecular structure of transparent inner layer changes, is then coated with a thin layer of polyurethane
After adhesive layer, polyurethane adhesive layer can be made to be easy to be grafted to above the polymer molecule on surface, so that polyurethane
Adhesive layer caking property is more excellent, and the associativity between two layers is more preferable, also more securely.Furthermore outermost layer is using polytetrafluoro
Then vinyl film carries out high temperature in a manner of winding again and is sintered, the teflon-copolymers of winding are using high-temperature process
The polymer entanglement power that Teflon inner molecule can be made to cause after resetting afterwards further increases, so that outside
Layer heavy wall middle layer between combine it is more closely knit, it is found by the applicant that polytetrafluoroethylene film sintering temperature cannot excessively high or mistake
It is low, and can not tangle it is blocked up, these factors all can to pincers deferent elasticity and bendability have a huge impact.This
Outside, it is found by the applicant that the special three-decker that pincers deferent has makes it have very excellent elasticity and bending property, also
Very soft feel, and clamp and be mounted with bourdon tube on the outside of deferent, further enhance the bendability of pincers deferent, thus it is speculated that former
Because being, its extent of elasticity is controlled by difference of the three-decker to the sintering temperature of polytetrafluoroethylene (PTFE), three layers from inside to outside three
The bourdon tube for planting the outside installation of ratio and outer layer that hardness is hard, soft, middle combination thickness respectively, which is used cooperatively, reaches final
Very excellent effect.In addition to this, the present invention can also prepare the pincers deferent of different transparencies according to demand.
This reaction is specifically described below by embodiment.Following embodiment is served only for doing furtherly the present invention
It is bright, it should not be understood as the limitation of the present invention, protection, professional and technical personnel in the field makes non-according to the content of foregoing invention
The modifications and adaptations of essence, still fall within protection scope of the present invention.
Embodiment 1
A kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；It is described transparent interior
Layer, heavy wall middle layer, outer layer thickness ratio be 1:16:6.5；
The outer surface of the transparent inner layer carries out plasma treatment；There is one layer to glue between the transparent inner layer and heavy wall middle layer
Tie layer, the adhesive layer be polyurethane adhesive layer, the polyurethane adhesive layer with a thickness of 0.03mm；The outer layer is poly- four
Fluoride film winding layer is winding of single layer；The polytetrafluoroethylene film winding layer is heat-treated；The heat treatment temperature is
250 DEG C, time 0.6h；Bourdon tube is installed on the outside of one end of the pincers deferent.
Embodiment 2
A kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；It is described transparent interior
Layer, heavy wall middle layer, outer layer thickness ratio be 1:13:5；
The outer surface of the transparent inner layer carries out plasma treatment；There is one layer to glue between the transparent inner layer and heavy wall middle layer
Tie layer, the adhesive layer be polyurethane adhesive layer, the polyurethane adhesive layer with a thickness of 0.01mm；The outer layer is poly- four
Fluoride film winding layer is winding of single layer；The polytetrafluoroethylene film winding layer is heat-treated；The heat treatment temperature is
200 DEG C, time 0.3h；Bourdon tube is installed on the outside of one end of the pincers deferent.
Embodiment 3
A kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；It is described transparent interior
Layer, heavy wall middle layer, outer layer thickness ratio be 1:15:6；
The outer surface of the transparent inner layer carries out plasma treatment；There is one layer to glue between the transparent inner layer and heavy wall middle layer
Tie layer, the adhesive layer be polyurethane adhesive layer, the polyurethane adhesive layer with a thickness of 0.02mm；The outer layer is poly- four
Fluoride film winding layer is winding of single layer；The polytetrafluoroethylene film winding layer is heat-treated；The heat treatment temperature is
240 DEG C, time 0.5h；Bourdon tube is installed on the outside of one end of the pincers deferent.
Embodiment 4
A kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；It is described transparent interior
Layer, heavy wall middle layer, outer layer thickness ratio be 1:17:7；
The outer surface of the transparent inner layer carries out plasma treatment；There is one layer to glue between the transparent inner layer and heavy wall middle layer
Tie layer, the adhesive layer be polyurethane adhesive layer, the polyurethane adhesive layer with a thickness of 0.04mm；The outer layer is poly- four
Fluoride film winding layer is winding of single layer；The polytetrafluoroethylene film winding layer is heat-treated；The heat treatment temperature is
260 DEG C, time 0.7h；Bourdon tube is installed on the outside of one end of the pincers deferent.
Embodiment 5
A kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；It is described transparent interior
Layer, heavy wall middle layer, outer layer thickness ratio be 1:18:8；
The outer surface of the transparent inner layer carries out plasma treatment；There is one layer to glue between the transparent inner layer and heavy wall middle layer
Tie layer, the adhesive layer be polyurethane adhesive layer, the polyurethane adhesive layer with a thickness of 0.05mm；The outer layer is poly- four
Fluoride film winding layer is winding of single layer；The polytetrafluoroethylene film winding layer is heat-treated；The heat treatment temperature is
300 DEG C, time 1h；Bourdon tube is installed on the outside of one end of the pincers deferent.
Embodiment 6
A kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；It is described transparent interior
Layer, heavy wall middle layer thickness ratio be 1:16；
The outer surface of the transparent inner layer carries out plasma treatment；There is one layer to glue between the transparent inner layer and heavy wall middle layer
Tie layer, the adhesive layer be polyurethane adhesive layer, the polyurethane adhesive layer with a thickness of 0.05mm；One end of the pincers deferent
Outside is equipped with bourdon tube.
Embodiment 7
A kind of novel pincers deferent, structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；It is described transparent interior
Layer, heavy wall middle layer, outer layer thickness ratio be 1:15:8；
The outer surface of the transparent inner layer carries out plasma treatment；There is one layer to glue between the transparent inner layer and heavy wall middle layer
Tie layer, the adhesive layer be polyurethane adhesive layer, the polyurethane adhesive layer with a thickness of 0.04mm；The outer layer is poly- four
Fluoride film winding layer is three layers of winding；The polytetrafluoroethylene film winding layer is heat-treated；The heat treatment temperature is
260 DEG C, time 0.7h；Bourdon tube is installed on the outside of one end of the pincers deferent.
Performance test
1. the test of the dynamics of bending: respectively by the resulting pincers deferent of embodiment 1- embodiment 7, bending to diameter is 20cm's
Corral carries out bending dynamics test with digital displaying push-and-pull tensiometer；It is 5cm by pincers deferent front end bending diameter, uses digital displaying push-and-pull tensiometer
Carry out bending dynamics test；Bending dynamics test result is as shown in table 1；
20cm corral clamps deferent standard requirements: bending dynamics control is in 25N；
5cm corral clamps deferent standard requirements: bending dynamics control is within 65N；
2. gas leakage is tested: the resulting pincers deferent of embodiment 1- embodiment 7 being immersed in clear water respectively, one is blocked one
Head is pressurizeed with air pump, 1 minute under 5 kilograms of air pressures, is observed whether there is or not air leakage point, test result is as shown in table 1.
Table 1 clamps deferent the performance test results
Example above-mentioned is merely illustrative, some features of the feature for explaining the disclosure.The attached claims
It is intended to the range as wide as possible for requiring to be contemplated that, and embodiments as presented herein is only according to all possible embodiment
Combined selection embodiment explanation.Therefore, the purpose of applicant is that the attached claims are not illustrated the present invention
Feature exemplary selectional restriction.And the progress in science and technology will be formed language express it is inaccurate due to and not
The possible equivalent being presently considered or son replacement, and these variations should also be interpreted in the conceived case by appended
Claim covering.
Claims (10)
1. a kind of novel pincers deferent, which is characterized in that structure is including at least three layers: transparent inner layer, heavy wall middle layer, outer layer；
The transparent inner layer, heavy wall middle layer, outer layer thickness ratio be 1:(10~20): (3~10).
2. novel pincers deferent as described in claim 1 a kind of, which is characterized in that the transparent inner layer, heavy wall middle layer base
Material is polytetrafluoroethylene (PTFE).
3. a kind of novel pincers deferent as claimed in claim 2, which is characterized in that the outer surface of the transparent inner layer will carry out
Surface treatment.
4. a kind of novel pincers deferent as claimed in claim 3, which is characterized in that between the transparent inner layer and heavy wall middle layer
There is one layer of adhesive layer.
5. a kind of novel pincers deferent as claimed in claim 4, which is characterized in that the adhesive layer is polyurethane adhesive layer.
6. novel pincers deferent as claimed in claim 5 a kind of, which is characterized in that the polyurethane adhesive layer with a thickness of
0.01~0.05mm.
7. a kind of novel pincers deferent as described in claim 1, which is characterized in that the outer layer is that polytetrafluoroethylene film twines
Winding layer.
8. a kind of novel pincers deferent as claimed in claim 7, which is characterized in that the polytetrafluoroethylene film winding layer is poly-
The rotation of tetrafluoroethylene single layer is wrapped in heavy wall middle layer outer surface.
9. a kind of novel pincers deferent as claimed in claim 8, which is characterized in that the polytetrafluoroethylene film winding layer carries out
Heat treatment；The heat treatment temperature is 200~300 DEG C, and the time is 0.3~1h.
10. the novel pincers deferent as described in any one of claim 1~9, which is characterized in that peace on the outside of one end of the pincers deferent
Equipped with bourdon tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545992.0A CN109567726A (en) | 2018-12-18 | 2018-12-18 | A kind of novel pincers deferent |
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| CN109569736A (en) * | 2018-12-26 | 2019-04-05 | 乔培根 | A kind of novel catalyst of denitrification and preparation method thereof |
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