CN114146285B - Manufacturing process of anti-damage reinforced anesthetic tube - Google Patents
Manufacturing process of anti-damage reinforced anesthetic tube Download PDFInfo
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- CN114146285B CN114146285B CN202011388561.5A CN202011388561A CN114146285B CN 114146285 B CN114146285 B CN 114146285B CN 202011388561 A CN202011388561 A CN 202011388561A CN 114146285 B CN114146285 B CN 114146285B
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- steel wire
- tube
- pipe
- inner layer
- spring
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Classifications
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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
- A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
Abstract
The invention belongs to the technical field of medical appliances, and particularly discloses a manufacturing process of an anti-damage reinforced anesthetic tube, which comprises the following steps of: (1) baking materials: drying the high polymer plastic; (2) manufacturing an inner core: extruding into solid tube with diameter of 0.47-0.52 mm; (3) inner layer cladding extrusion: obtaining an inner layer coating extrusion pipe; (4) winding spring: obtaining a steel wire spring with two pitches of a sparse section and a dense section; and (5) penetrating the spring: penetrating an inner layer coated extrusion pipe with the outer diameter smaller than the inner cavity of the steel wire spring into the inner cavity of the steel wire spring; (6) extrusion coating of the outer layer; (7) a binding test; (8) performing a thermal rheological treatment in a rheometer; (9) stripping the heat-shrinkable tube: selecting a surgical blade to completely strip the heat shrinkage tube; (10) inner core extraction: the inner core is drawn from the middle of the pipe body; (11) trimming and forming. The invention has the advantages of simple manufacturing method, reasonable design of three-layer structure and strong anti-bending capability.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly discloses a manufacturing process of an anti-damage reinforced anesthetic tube.
Background
In recent years, epidural nerve block has been widely used clinically, and an anesthetic catheter plays a role in this anesthetic method. The existing anesthesia catheters on the market are two types, namely a common anesthesia catheter and a reinforced anesthesia catheter, wherein the common anesthesia catheter is formed by extruding high polymer plastics, and the reinforced anesthesia catheter is formed by co-extruding a steel wire spring and molten high polymer plastics. Compared with the common anesthetic catheter, the reinforced anesthetic catheter has the advantages of simple operation, easy tube placement, bending resistance, small damage, easy management in operation, convenient epidural analgesia after operation and the like, and is more accepted and favored by clinical specialists and doctors in epidural nerve block. However, in the marketed products, the reinforced anesthetic tubes are all of a double-layer structure: polymer plastic outer layer and steel wire spring inner layer.
Although the prior reinforced anesthetic catheters are widely used, a plurality of defects still exist: (1) When in infusion, the liquid medicine passes through the exposed steel wire spring, the liquid is easy to remain in the gap of the steel wire spring, and the risk of pipe blockage is easy to occur; (2) The liquid medicine can remain in gaps between the springs and the high polymer plastic in the flowing process, and the residual quantity is not easy to control; (3) The steel wire spring has the risk of rusting, and the liver can be damaged when rust enters a human body; (4) The combination of the inner layer and the outer layer is not firm, and the tensile resistance of the product is poor; and (5) the product has poor anti-folding performance.
Aiming at a plurality of defects of products on the market, a plurality of companies in China aim to develop a reinforced anesthetic tube with a three-layer structure, and in order to improve the effective infusion quantity of epidural anesthetic drugs, improve the success rate of tube placement and reduce the damage to human bodies, the manufacturing process of the reinforced anesthetic tube with damage prevention is necessary to be developed. Based on the above, how to treat the residual liquid of the spring and the polymer plastic, prevent the rust risk of the steel wire spring, and resist the stretching and the bending and bending of the product is a technical problem required to be solved by the person skilled in the art at present.
Disclosure of Invention
The invention aims to provide a manufacturing process of an anti-damage reinforced anesthetic tube, which comprises the following steps: the three-layer composite extrusion is realized, and the problem that the steel wire spring is contacted with the liquid medicine in the clinical use of the existing product can be solved by adding a high polymer plastic inner layer on the basis of the double-layer structure of the existing product to avoid the exposure of the steel wire spring; and the steel wire spring is firmly coated at the middle part of the product by the inner and outer layers of the high polymer plastic, which is more beneficial to enhancing the tensile property and the anti-folding property of the product. The process method is simple and has low requirements on equipment and operators; the product has reasonable structural design, meets the medical use requirement, has small damage to patients and better realizes the expected anesthetic effect.
The invention relates to an anti-damage reinforced anesthetic tube which consists of a three-layer structure, wherein an inner layer and an outer layer are both formed by extrusion of elastic polymer plastics, the inner layer and the outer layer can be made of the same kind or different kinds of materials, the wall thickness of the inner layer is 0.05-0.35mm, the wall thickness of the outer layer is 0.10-0.40mm, the middle layer is a steel wire spring, the steel wire spring is divided into two screw pitches of a sparse section and a dense section, and the steel wire spring sequentially comprises: the front end is provided with a sparse section pitch of 64mm, a two-section sparse section pitch of 0-15mm is arranged between 65mm-800mm, the rest part is provided with a dense section pitch, wherein the sparse section pitch is 0.20-0.50mm, the dense section pitch is 0.05-0.20mm, and the diameter of a steel wire is 0.05-0.10mm.
The manufacturing steps of the anti-damage reinforced anesthetic tube are as follows:
the manufacturing process of the damage-preventing reinforced anesthetic tube comprises a three-layer structure, wherein the inner layer and the outer layer are formed by extruding high polymer materials, the middle layer is a steel wire spring, and the steel wire spring is coated in the middle by the high polymer materials of the inner layer and the outer layer, and the manufacturing process is characterized by comprising the following steps:
(1) And (3) baking: drying a certain amount of high molecular plastic at 80-120 ℃ for 4-6 hours;
(2) And (3) manufacturing an inner core: extruding a solid pipe with the diameter of 0.47-0.52mm from the material obtained in the step 1 by using a No. 20 extruder as an inner core for supporting an inner layer pipe of a catheter;
(3) And (3) inner layer cladding extrusion: selecting a T-shaped machine head, feeding the inner core obtained in the step 2 from the rear of the machine head along the discharging direction of the machine head, simultaneously feeding the molten material obtained in the step 1 from the side surface of the machine head through rotation of a screw rod of an extrusion main machine, combining the inner core and the material into a whole in a die, and then pulling a pipe body to obtain an inner layer pipe through vacuum sizing, cooling, transmission and coiling;
(4) Winding springs: selecting a steel wire with the wire diameter of 0.05-0.10mm, and forming a winding spring by a spring coiling machine, wherein the winding spring is divided into a sparse section and a dense section according to different screw pitches, and the sparse section and the dense section are specifically distributed as follows: the front end length is 64mm, which is a sparse segment pitch, the 65mm-800mm segment from the front end has sparse segments with two ends length of 0-15mm, and the rest is a dense segment;
(5) Spring penetrating: penetrating the inner layer pipe obtained in the step 3 into the inner cavity of the steel wire spring, and enabling the two ends of the steel wire spring to be provided with the inner layer pipe with the length not less than 10 cm;
(6) And (3) outer layer cladding extrusion: selecting a T-shaped machine head, feeding the inner layer tube and the steel wire spring obtained in the step 5 from the rear of the machine head along the discharging direction of the machine head, simultaneously rotating and feeding the molten material obtained in the step 1 from the side surface of the machine head through a screw rod of an extrusion main machine, penetrating the molten material into the inner layer tube and the steel wire spring through a screw pitch gap of the steel wire spring, and then pulling the tube body to obtain an anesthetic tube body through vacuum sizing, cooling, transmission and coiling;
(7) Binding test: carrying out material combination test on the pipe body obtained in the step 6, and if the combination does not meet the technical requirements of products, carrying out rheological treatment on the pipe body continuously; if the combination meets the technical requirement of the product, the pipe body can be trimmed and formed;
(8) And (3) extracting an inner core: extracting the inner core from the middle of the pipe body obtained in the step 7;
(9) And (5) trimming and forming: and (3) trimming off the part, exceeding 800mm, of the outer ends of the steel wire springs at the two ends of the tube body obtained in the step (8) to obtain the finished anesthetic tube.
Further, in step 7, the rheological treatment includes the following steps:
7.1 rheology: selecting a heat-shrinkable tube with an inner diameter of 1.4-1.6mm, penetrating the tube body obtained in the step 6 into the inner cavity of the heat-shrinkable tube based on the condition that the tube body obtained in the step 6 can penetrate, and performing heat rheological treatment in a rheometer;
7.2 heat shrink tube stripping: and (3) peeling off the outer heat-shrinkable tube by using the surgical blade from the tube body obtained in the step 7.1.
Further, the materials of the inner layer and the outer layer are the same.
Further, the materials of the inner layer and the outer layer are different.
Further, the wall thickness of the inner layer is 0.05-0.35mm, and the wall thickness of the outer layer is 0.10-0.40mm.
Further, in the step 4, the pitch of the sparse segment is 0.20-0.50mm, and the pitch of the dense segment is 0.05-0.20mm.
Further, in step 7.1, the thermal rheological treatment environment is at 170-210 ℃ and the rheological speed is 0.5-2.0mm/min.
The invention has the following beneficial effects: (1) The process method is simple, and the requirements on equipment and operators are low; (2) The three-layer structure is reasonable in design, and the steel wire spring is coated in the middle by the polymer plastics on the inner layer and the outer layer, so that the loss of infused medicine is avoided; (3) The anti-bending capability is strong, the success rate of tube placement is improved, and the damage to human body is reduced; (4) The steel wire spring is firmly combined with the inner layer and the outer layer, so that the risk of pipe breakage is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a process for manufacturing an atraumatic reinforced anesthetic tube.
Fig. 2 is a schematic diagram of a structure of an interlayer steel wire spring in the manufacturing process of the anti-damage reinforced anesthetic tube.
Detailed Description
Example 1:
(1) And (3) baking: drying the high polymer plastic at 100 ℃ for 4 hours;
(2) And (3) manufacturing an inner core: a high-temperature resistant elastic material is selected, and extruded into a solid pipe with the diameter of 0.50mm to be used as an inner core;
(3) And (3) inner layer cladding extrusion: selecting a T-shaped machine head for the inner layer coating material obtained in the steps (1) and (2), feeding an inner core from the rear of the machine head along the discharging direction of the machine head, simultaneously feeding a material in a molten state from the side surface of the machine head through rotation of a screw rod of an extrusion main machine, combining the inner core and the material into a whole in a die, and then pulling a pipe body to obtain an inner layer coating extrusion pipe through vacuum sizing, cooling, transmission and coiling;
(4) Winding springs: selecting a steel wire with the wire diameter of 0.05-0.10mm, and carrying out spring winding forming through a spring winding machine to obtain a sparse section and a dense section, wherein the steel wire spring comprises the following components in sequence from left to right: the front end has a length of 64mm as a sparse segment pitch, a middle of 65mm-800mm is provided with two sparse segment pitches with a length of 0-15mm, and the rest is a dense segment pitch;
(5) Spring penetrating: penetrating an inner layer coating extrusion pipe with the outer diameter smaller than the inner cavity of the steel wire spring into the inner cavity of the steel wire spring, and ensuring that the inner layer coating extrusion pipe with the length not smaller than 10cm is arranged at both ends of the steel wire spring;
(6) And (3) outer layer cladding extrusion: selecting a T-shaped machine head for the inner layer cladding and the steel wire spring obtained in the steps (3) and (4), feeding the inner layer cladding extrusion pipe after spring penetrating from the rear of the machine head along the discharging direction of the machine head, simultaneously feeding molten materials from the side surface of the machine head through the rotation of a screw rod of an extrusion main machine, penetrating the molten and flowing materials into the inner layer cladding extrusion pipe through a pitch gap of the steel wire spring, and then pulling the pipe body to obtain an outer layer cladding extrusion pipe through vacuum sizing, cooling, transmission and coiling;
(7) Binding test: carrying out material combination test on the pipe body obtained in the step (6), and if the combination meets the technical requirement of a product, trimming and forming the pipe body;
(8) And (5) trimming and forming: and (5) trimming off the part, exceeding 800mm, of the outer ends of the steel wire springs at the two ends of the tube body to obtain the anesthesia catheter tube body.
Example 2:
(1) And (3) baking: drying the materials at 100 ℃ for 4 hours;
(2) And (3) manufacturing an inner core: a high-temperature resistant elastic material is selected, and extruded into a solid pipe with the diameter of 0.50mm to be used as an inner core;
(3) And (3) inner layer cladding extrusion: selecting a T-shaped machine head for the inner layer coating material obtained in the steps (1) and (2), feeding an inner core from the rear of the machine head along the discharging direction of the machine head, simultaneously feeding a material in a molten state from the side surface of the machine head through rotation of a screw rod of an extrusion main machine, combining the inner core and the material into a whole in a die, and then pulling a pipe body to obtain an inner layer coating extrusion pipe through vacuum sizing, cooling, transmission and coiling;
(4) Winding springs: selecting a steel wire with the wire diameter of 0.05-0.10mm, and carrying out spring winding forming through a spring winding machine to obtain a sparse section and a dense section, wherein the steel wire spring comprises the following components in sequence from left to right: the front end has a length of 64mm as a sparse segment pitch, a middle of 65mm-800mm is provided with two sparse segment pitches with a length of 0-15mm, and the rest is a dense segment pitch;
(5) Spring penetrating: penetrating an inner layer coating extrusion pipe with the outer diameter smaller than the inner cavity of the steel wire spring into the inner cavity of the steel wire spring, and ensuring that the inner layer coating extrusion pipe with the length not smaller than 10cm is arranged at both ends of the steel wire spring;
(6) And (3) outer layer cladding extrusion: selecting a T-shaped machine head for the inner layer cladding and the steel wire spring obtained in the steps (3) and (4), feeding the inner layer cladding extrusion pipe after spring penetrating from the rear of the machine head along the discharging direction of the machine head, simultaneously feeding molten materials from the side surface of the machine head through the rotation of a screw rod of an extrusion main machine, penetrating the molten and flowing materials into the inner layer cladding extrusion pipe through a pitch gap of the steel wire spring, and then pulling the pipe body to obtain an outer layer cladding extrusion pipe through vacuum sizing, cooling, transmission and coiling;
(7) Binding test: carrying out material combination test on the pipe body obtained in the step (6), and if the combination does not meet the technical requirements of products, carrying out rheological treatment on the pipe body continuously;
(8) Rheology: selecting a heat shrinkage tube with a proper size, wherein the inner diameter of the heat shrinkage tube is better than that of the tube body obtained in the step (6) which is just easy to penetrate, penetrating the tube body obtained in the step (6) into the inner cavity of the heat shrinkage tube, setting the rheological temperature to 190 ℃, and carrying out heat rheological treatment in a rheometer at the rheological speed of 1.0 mm/min;
(9) Stripping the heat-shrinkable tube: selecting a surgical blade to completely strip the heat shrinkage tube;
(10) And (3) extracting an inner core: the inner core is drawn from the middle of the pipe body;
(11) And (5) trimming and forming: and (5) trimming off the part, exceeding 800mm, of the outer ends of the steel wire springs at the two ends of the tube body to obtain the anesthesia catheter tube body.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The manufacturing process of the anti-damage reinforced anesthetic tube is characterized by comprising the following steps of:
(1) And (3) baking: drying a certain amount of high molecular plastic at 80-120 ℃ for 4-6 hours;
(2) And (3) manufacturing an inner core: extruding a solid pipe with the diameter of 0.47-0.52mm from the material obtained in the step 1 by using a No. 20 extruder as an inner core for supporting an inner layer pipe of a catheter;
(3) And (3) inner layer cladding extrusion: selecting a T-shaped machine head, feeding the inner core obtained in the step 2 from the rear of the machine head along the discharging direction of the machine head, simultaneously feeding the molten material obtained in the step 1 from the side surface of the machine head through rotation of a screw rod of an extrusion main machine, combining the inner core and the material into a whole in a die, and then pulling a pipe body to obtain an inner layer pipe through vacuum sizing, cooling, transmission and coiling;
(4) Winding springs: selecting a steel wire with the wire diameter of 0.05-0.10mm, and forming a winding spring by a spring coiling machine, wherein the winding spring is divided into a sparse section and a dense section according to different screw pitches, and the sparse section and the dense section are specifically distributed as follows: the front end length is 64mm, which is a sparse segment pitch, the 65mm-800mm segment from the front end has sparse segments with two ends length of 0-15mm, and the rest is a dense segment;
(5) Spring penetrating: penetrating the inner layer pipe obtained in the step 3 into the inner cavity of the steel wire spring, and enabling the two ends of the steel wire spring to be provided with the inner layer pipe with the length not less than 10 cm;
(6) And (3) outer layer cladding extrusion: selecting a T-shaped machine head, feeding the inner layer pipe and the steel wire spring obtained in the step 5 from the rear of the machine head along the discharging direction of the machine head, simultaneously feeding the molten material obtained in the step 1 from the side surface of the machine head through the rotation of a screw rod of an extrusion main machine, penetrating the molten material into the inner layer pipe and the steel wire spring through a pitch gap of the steel wire spring, and then pulling the pipe body to pass through a true pipe
Sizing, cooling, driving and coiling to obtain an anesthetic catheter body;
(7) Binding test: carrying out material combination test on the pipe body obtained in the step 6, and if the combination does not meet the technical requirements of products, carrying out rheological treatment on the pipe body continuously; if the combination meets the technical requirement of the product, the pipe body can be trimmed and formed;
(8) And (3) extracting an inner core: extracting the inner core from the middle of the pipe body obtained in the step 7;
(9) And (5) trimming and forming: trimming off the part, exceeding 800mm, of the outer ends of the steel wire springs at the two ends of the tube body obtained in the step 8 to obtain an anesthetic tube finished product;
in step 7, the rheology treatment comprises the steps of:
7.1 rheology: selecting a heat-shrinkable tube with an inner diameter of 1.4-1.6mm, penetrating the tube body obtained in the step 6 into the inner cavity of the heat-shrinkable tube based on the condition that the tube body obtained in the step 6 can penetrate, and performing heat rheological treatment in a rheometer;
7.2 heat shrink tube stripping: peeling off the heat-shrinkable tube on the outer layer of the tube body obtained in the step 7.1 by using a surgical blade;
the materials of the inner layer and the outer layer are the same or different.
2. The process for manufacturing the anti-damage reinforced anesthetic tube according to claim 1, wherein the wall thickness of the inner layer is 0.05-0.35mm, and the wall thickness of the outer layer is 0.10-0.40mm.
3. The process for manufacturing an atraumatic reinforced anesthetic tube of claim 1, wherein in step 4, the sparse segment has a pitch of 0.20-0.50mm and the dense segment has a pitch of 0.05-0.20mm.
4. The process for manufacturing an anti-damage reinforced anesthetic tube according to claim 1, wherein in the step 7.1, the heat-rheological treatment environment temperature is 170-210 ℃ and the rheological speed is 0.5-2.0mm/min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114602034A (en) * | 2022-03-10 | 2022-06-10 | 广东益德医疗科技有限公司 | Steel wire type flexible reinforced epidural anesthesia catheter and manufacturing process thereof |
| CN115887864A (en) * | 2022-11-24 | 2023-04-04 | 适介医疗科技(广州)有限公司 | Spring guide pipe and manufacturing method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08266633A (en) * | 1995-04-03 | 1996-10-15 | Terumo Corp | Manufacture of interior inserting tool having electric conductive passage |
| CN1552567A (en) * | 2003-06-06 | 2004-12-08 | 天津市塑料研究所 | Process for moulding composite support inserting tubes |
| JP2006051080A (en) * | 2004-08-10 | 2006-02-23 | Kaneka Corp | Medical catheter tube and method for manufacturing the same |
| CN104582610A (en) * | 2012-07-24 | 2015-04-29 | 瑞尼斯豪公司 | Neurosurgical apparatus and methods |
| CN105268081A (en) * | 2015-11-10 | 2016-01-27 | 深圳麦普奇医疗科技有限公司 | Catheter for clinical intravascular interventional therapy and manufacturing method of catheter |
| CN108744236A (en) * | 2018-07-02 | 2018-11-06 | 临沂市兴华医用器材有限公司 | A kind of composite reinforced segmental epidural catheter and preparation method thereof |
| CN208212289U (en) * | 2017-08-31 | 2018-12-11 | 浙江润强医疗器械股份有限公司 | The anti-medical anesthetic tube to fracture |
| CN110273188A (en) * | 2018-03-15 | 2019-09-24 | 北京普益盛济科技有限公司 | A kind of method of quick Fabrication interventional medicine microtubular tube body |
| CN209451107U (en) * | 2017-11-07 | 2019-10-01 | 许清华 | A kind of anti-blocking cast segmental epidural catheter of antisitic defect |
| CN210301982U (en) * | 2019-03-05 | 2020-04-14 | 张家港市沙工医疗器械科技发展有限公司 | Reinforced damage-preventing anesthetic catheter |
-
2020
- 2020-12-02 CN CN202011388561.5A patent/CN114146285B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08266633A (en) * | 1995-04-03 | 1996-10-15 | Terumo Corp | Manufacture of interior inserting tool having electric conductive passage |
| CN1552567A (en) * | 2003-06-06 | 2004-12-08 | 天津市塑料研究所 | Process for moulding composite support inserting tubes |
| JP2006051080A (en) * | 2004-08-10 | 2006-02-23 | Kaneka Corp | Medical catheter tube and method for manufacturing the same |
| CN104582610A (en) * | 2012-07-24 | 2015-04-29 | 瑞尼斯豪公司 | Neurosurgical apparatus and methods |
| CN105268081A (en) * | 2015-11-10 | 2016-01-27 | 深圳麦普奇医疗科技有限公司 | Catheter for clinical intravascular interventional therapy and manufacturing method of catheter |
| CN208212289U (en) * | 2017-08-31 | 2018-12-11 | 浙江润强医疗器械股份有限公司 | The anti-medical anesthetic tube to fracture |
| CN209451107U (en) * | 2017-11-07 | 2019-10-01 | 许清华 | A kind of anti-blocking cast segmental epidural catheter of antisitic defect |
| CN110273188A (en) * | 2018-03-15 | 2019-09-24 | 北京普益盛济科技有限公司 | A kind of method of quick Fabrication interventional medicine microtubular tube body |
| CN108744236A (en) * | 2018-07-02 | 2018-11-06 | 临沂市兴华医用器材有限公司 | A kind of composite reinforced segmental epidural catheter and preparation method thereof |
| CN210301982U (en) * | 2019-03-05 | 2020-04-14 | 张家港市沙工医疗器械科技发展有限公司 | Reinforced damage-preventing anesthetic catheter |
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| CN114146285A (en) | 2022-03-08 |
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