CN112642041A - Novel catheter with rigidity and flexibility and manufacturing method thereof - Google Patents
Novel catheter with rigidity and flexibility and manufacturing method thereof Download PDFInfo
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- CN112642041A CN112642041A CN201910970596.0A CN201910970596A CN112642041A CN 112642041 A CN112642041 A CN 112642041A CN 201910970596 A CN201910970596 A CN 201910970596A CN 112642041 A CN112642041 A CN 112642041A
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- catheter
- liquid
- bending part
- coating layer
- guiding head
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- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/001—Forming the tip of a catheter, e.g. bevelling process, join or taper
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- Life Sciences & Earth Sciences (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a novel rigid and flexible catheter and a manufacturing method thereof, the novel rigid and flexible catheter comprises a catheter body and a plastic coating layer, the catheter body comprises a liquid guiding head part, a first bending part and a second bending part, the first bending part and the second bending part are both formed by spirally cutting the catheter body, the cutting distance of the catheter body and the cutting distance of the second bending part are both formed by spirally cutting with variable intervals according to requirements, the liquid guiding head part comprises a liquid guiding head body, a liquid guiding head groove and liquid inlet and outlet ports, the free end of the top of the liquid guiding head body is provided with the liquid guiding head groove, the liquid guiding head groove is in an outward expanding fan shape between the inner diameter and the outer diameter, the angle is 25 degrees, the liquid inlet and outlet ports are liquid inlet and outlet end parts at one end of the catheter body, and the liquid inlet and outlet ports are positioned in the liquid guiding head groove, and the use of a user for the catheter is, the catheter has rigidity and flexibility, and the pushing, rotating and bending of the catheter are easy to complete.
Description
Technical Field
The invention belongs to the field of medical equipment, and particularly relates to a novel catheter with rigidity and flexibility and a manufacturing method thereof.
Background
In the prior art, a catheter for stretching into the nasal cavity and other parts of the human body plays a role in flushing, melting, medicine application or liquid extraction for a patient, the existing catheter is mostly a metal wire composite weave, the curvature of the existing catheter is single and is not easy to control, particularly, the propelling movement is poor, the operation feeling effect of an user is inconvenient, the use comfort degree of the patient is poor, the manufacturing cost is high, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide a novel catheter with rigidity and flexibility and a manufacturing method thereof, and the catheter is particularly suitable for a user to conduct liquid to nasal cavities and other parts of a human body.
In order to solve the technical problems, the invention adopts the technical scheme that: a novel catheter with rigidity and flexibility is provided.
The catheter comprises a catheter body and a plastic coating layer, wherein the catheter body comprises a liquid guiding head part, a first bending part and a second bending part, the first bending part and the second bending part are formed by spirally cutting the catheter body, the cutting space of the catheter body and the cutting space of the second bending part are formed by spirally cutting with variable space according to needs, the liquid guiding head part comprises a liquid guiding head body, a liquid guiding head groove and a liquid inlet and outlet, the free end of the top of the liquid guiding head body is provided with the liquid guiding head groove, the liquid guiding head groove is in an outward-opening fan shape between the inner diameter and the outer diameter, the angle is equal to that of the liquid inlet and outlet, the liquid inlet and outlet are the liquid inlet and outlet end part at one end of the catheter body, the liquid inlet and outlet are positioned in the liquid guiding head groove, the plastic coating layer is tightly wrapped outside the first bending part and the second bending part of the catheter body, and a first anti, the plastic coating is located first non-slip portion department and sets up to first fastening cladding portion, is provided with second non-slip portion on the lateral wall of catheter body near second kink one side, and the plastic coating is located second non-slip portion department and sets up to second fastening cladding portion, and the plastic coating is selected the material for having the plastic of bonding and biocompatibility, and vertically is provided with the observation portion along on the plastic coating. The outer side wall of the plastic coating layer is provided with a plurality of scales along the radial direction.
The invention relates to a novel catheter with rigidity and flexibility and a manufacturing method thereof, which is characterized by comprising the following steps:
s1, manufacturing a catheter body: the catheter body adopts stainless steel pipes with OD1.5 and ID 1.2; the body is divided into a flexible section and a rigid section; the rigid section mainly realizes pushing performance, so that the equipment reaches a required position, the flexible section completes the passing performance of the equipment, and the position of a focus can be aimed by utilizing bending and rotation; the flexible section is cut in a spiral parabolic manner by adopting a laser engraving method, and is cut in a 50mm section by a method of increasing 0.1mm every 360 degrees from a thread pitch of 0.4 mm; a bend radius of 5mm at the distal end is achieved in order to pass the smallest nasal cavity diameter.
S2, catheter tip: the head of the drainage tube is semicircular; the liquid guide pipe head body is provided with a slot for guiding liquid out or in at 15 degrees to the left and 60 degrees to the right of the axis; forming a firing angle covering 75 degrees; the outer diameter of the pipe is 0.35mm, the inner diameter of the pipe is 0.30mm, and a fan-shaped spraying angle or a suction angle is formed; the grooving adopts a laser cutting mode or a mechanical processing mode.
S3, plastic coating layer: medical PEBAX plastic is adopted for coating; PEBAX with the thickness of 0.15-0.25mm is adopted as the coating layer; the coating layer is assembled to the body by adopting a hot cladding process and then is over-baked; PEBAX employs additives and external surface treatment.
S4, scale mark: the scale marks are marked with line segments on the body in a laser engraving mode.
The invention has the advantages and positive effects that: by adopting the technical scheme, the use of the catheter by a user becomes more convenient and efficient, the catheter can have rigidity and flexibility at the same time, the pushing, the rotation and the bending of the catheter are very easy to complete, and the requirements of the user are met; the invention has the advantages of simple structure, convenient maintenance, low processing cost, high production efficiency and the like.
Drawings
FIG. 1 is a schematic front view of the present invention;
figure 2 is a front view of the catheter body of the present invention;
figure 3 is a schematic view of the structure of the head of the catheter of the present invention.
In the figure:
1. catheter body 11, catheter head 111, and catheter head body
112. Liquid guide head groove 113, liquid inlet and outlet 12 and first bending part
13. Second bent portion 14, first anti-slip portion 15, and second anti-slip portion
2. Plastic coating 21, observation part 22, scale
23. The first fastening coating 24 and the second fastening coating
Detailed Description
As shown in figures 1-3, the invention is a novel rigid and flexible catheter, comprising a catheter body 1 and a plastic coating layer 2, wherein the catheter body 1 comprises a liquid guiding head part 11, a first bending part 12 and a second bending part 13, the first bending part 12 and the second bending part 13 are formed by spirally cutting the catheter body 1, the cutting distance of the catheter body 1 and the cutting distance of the second bending part 12 are formed by spirally cutting with variable intervals according to requirements, the liquid guiding head part 11 comprises a liquid guiding head body 111, a liquid guiding head groove 112 and a liquid inlet and outlet 113, the free end at the top of the liquid guiding head body 111 is provided with a liquid guiding head groove 112, the liquid guiding head groove 112 is in an outward-expanding fan shape between the inner diameter and the outer diameter, the angle is 25 degrees, the liquid inlet and outlet 113 is a liquid inlet and outlet end part at one end of the catheter body 1, the liquid inlet and outlet 113 is positioned in the liquid guiding head groove 112, the plastic coating layer 2 is tightly wrapped outside the first bending part 12 and the second bending part 13 of the catheter body And the lateral wall of catheter body 1 near the side of first kink 12 is provided with first antiskid 14, the place where plastic coating 2 is located first antiskid 14 sets up to first fastening cladding 23, the lateral wall of catheter body 1 near the side of second kink 13 is provided with second antiskid 15, the place where plastic coating 2 is located second antiskid 15 sets up to second fastening cladding 24, the material of plastic coating 2 is selected for the plastic that has adhesion and biocompatibility, and plastic coating 2 is last to be provided with observation portion 21 along vertically. The outer side wall of the plastic cladding layer 2 is provided with a plurality of scales 22 along the radial direction.
The invention relates to a novel catheter with rigidity and flexibility and a manufacturing method thereof, which is characterized by comprising the following steps:
s1, manufacturing a catheter body: the catheter body 1 adopts stainless steel pipes with OD1.5 and ID 1.2; the body is divided into a flexible section and a rigid section; the rigid section mainly realizes pushing performance, so that the equipment reaches a required position, the flexible section completes the passing performance of the equipment, and the position of a focus can be aimed by utilizing bending and rotation; the flexible section is cut in a spiral parabolic manner by adopting a laser engraving method, and is cut in a 50mm section by a method of increasing 0.1mm every 360 degrees from a thread pitch of 0.4 mm; a bend radius of 5mm at the distal end is achieved in order to pass the smallest nasal cavity diameter.
S2, catheter tip: the head of the drainage tube is semicircular; the liquid guide pipe head body 111 is provided with a slot for guiding liquid out or in at 15 degrees to the left and 60 degrees to the right of the axis; forming a firing angle covering 75 degrees; the outer diameter of the pipe is 0.35mm, the inner diameter of the pipe is 0.30mm, and a fan-shaped spraying angle or a suction angle is formed; the grooving adopts a laser cutting mode or a mechanical processing mode.
S3, plastic coating layer: medical PEBAX plastic is adopted for coating; PEBAX with the thickness of 0.15-0.25mm is adopted as the coating layer; the coating layer is assembled to the body by adopting a hot cladding process and then is over-baked; PEBAX employs additives and external surface treatment.
S4, scale mark: the scale marks are marked with line segments on the body in a laser engraving mode.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (3)
1. A novel catheter with rigidity and flexibility is characterized in that: the catheter comprises a catheter body (1) and a plastic coating layer (2), wherein the catheter body (1) comprises a liquid guiding head part (11), a first bending part (12) and a second bending part (13), the first bending part (12) and the second bending part (13) are formed by spirally cutting the catheter body (1), the cutting distance of the catheter body (1) and the cutting distance of the second bending part (12) are formed by spirally cutting at variable intervals as required, the liquid guiding head part (11) comprises a liquid guiding head body (111), a liquid guiding head groove (112) and a liquid inlet and outlet (113), the liquid guiding head groove (112) is arranged at the free end of the top of the liquid guiding head body (111), the liquid guiding head groove (112) is in an outward-expanding fan shape between the inner diameter and the outer diameter, the angle is 25 degrees, and the liquid inlet and outlet (113) is the liquid inlet and outlet end part at one end of the catheter body (1), the liquid inlet and outlet (113) is positioned in the liquid guide head groove (112), the plastic coating layer (2) is tightly wrapped outside the first bending part (12) and the second bending part (13) of the liquid guide tube body (1), a first anti-slip part (14) is arranged on the outer side wall of one side, close to the first bending part (12), of the liquid guide tube body (1), a first fastening coating part (23) is arranged at the position, located at the first anti-slip part (14), of the plastic coating layer (2), a second anti-slip part (15) is arranged on the outer side wall of one side, close to the second bending part (13), of the liquid guide tube body (1), the plastic coating layer (2) is arranged at the position, located at the second anti-slip part (15), of the second fastening coating part (24), and the plastic coating layer (2) is made of plastic with adhesive and biological compatibility, and an observation part (21) is arranged on the plastic coating layer (2) along the longitudinal direction.
2. The new rigid and flexible catheter as set forth in claim 1, wherein: the outer side wall of the plastic coating layer (2) is provided with a plurality of scales (22) along the radial direction.
3. A method for manufacturing a novel catheter with rigidity and flexibility is characterized by comprising the following steps:
s1, manufacturing a catheter body: the catheter body (1) adopts stainless steel pipes with OD1.5 and ID 1.2; the body is divided into a flexible section and a rigid section; the rigid section mainly realizes pushing performance, so that the equipment reaches a required position, the flexible section completes the passing performance of the equipment, and the position of a focus can be aimed by utilizing bending and rotation; the flexible section is cut in a spiral parabolic manner by adopting a laser engraving method, and is cut in a 50mm section by a method of increasing 0.1mm every 360 degrees from a thread pitch of 0.4 mm; a bend radius of 5mm at the distal end is achieved in order to pass the smallest nasal cavity diameter.
S2, catheter tip: the head of the drainage tube is semicircular; the liquid guide pipe head body (111) is provided with a slot for guiding liquid out or in at 15 degrees to the left and 60 degrees to the right of the axis; forming a firing angle covering 75 degrees; the outer diameter of the pipe is 0.35mm, the inner diameter of the pipe is 0.30mm, and a fan-shaped spraying angle or a suction angle is formed; the grooving adopts a laser cutting mode or a mechanical processing mode.
S3, plastic coating layer: medical PEBAX plastic is adopted for coating; PEBAX with the thickness of 0.15-0.25mm is adopted as the coating layer; the coating layer is assembled to the body by adopting a hot cladding process and then is over-baked; PEBAX employs additives and external surface treatment.
S4, scale mark: the scale marks are marked with line segments on the body in a laser engraving mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970596.0A CN112642041A (en) | 2019-10-12 | 2019-10-12 | Novel catheter with rigidity and flexibility and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970596.0A CN112642041A (en) | 2019-10-12 | 2019-10-12 | Novel catheter with rigidity and flexibility and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112642041A true CN112642041A (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910970596.0A Pending CN112642041A (en) | 2019-10-12 | 2019-10-12 | Novel catheter with rigidity and flexibility and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112642041A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6533749B1 (en) * | 1999-09-24 | 2003-03-18 | Medtronic Xomed, Inc. | Angled rotary tissue cutting instrument with flexible inner member |
| CN103121290A (en) * | 2013-01-28 | 2013-05-29 | 钭礼俊 | Automatic production line of composite tube and production method thereof |
| CN204233580U (en) * | 2014-11-20 | 2015-04-01 | 中国人民解放军北京军区总医院 | A kind of reinforced stomach tube |
| CN107666871A (en) * | 2015-05-29 | 2018-02-06 | 美敦力施美德公司 | For being at an angle of the inner tubular member of rotary operation apparatus |
| CN108514681A (en) * | 2018-03-15 | 2018-09-11 | 美敦力公司 | Medical tube and cavity rinser |
-
2019
- 2019-10-12 CN CN201910970596.0A patent/CN112642041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6533749B1 (en) * | 1999-09-24 | 2003-03-18 | Medtronic Xomed, Inc. | Angled rotary tissue cutting instrument with flexible inner member |
| CN103121290A (en) * | 2013-01-28 | 2013-05-29 | 钭礼俊 | Automatic production line of composite tube and production method thereof |
| CN204233580U (en) * | 2014-11-20 | 2015-04-01 | 中国人民解放军北京军区总医院 | A kind of reinforced stomach tube |
| CN107666871A (en) * | 2015-05-29 | 2018-02-06 | 美敦力施美德公司 | For being at an angle of the inner tubular member of rotary operation apparatus |
| CN108514681A (en) * | 2018-03-15 | 2018-09-11 | 美敦力公司 | Medical tube and cavity rinser |
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