CN115400322A - Reinforced composite sheath tube - Google Patents
Reinforced composite sheath tube Download PDFInfo
- Publication number
- CN115400322A CN115400322A CN202210963406.4A CN202210963406A CN115400322A CN 115400322 A CN115400322 A CN 115400322A CN 202210963406 A CN202210963406 A CN 202210963406A CN 115400322 A CN115400322 A CN 115400322A
- Authority
- CN
- China
- Prior art keywords
- reinforcing
- reinforced composite
- composite sheath
- pipe
- sheath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 239000004831 Hot glue Substances 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 description 15
- 239000007943 implant Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000003902 lesion Effects 0.000 description 3
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 210000000702 aorta abdominal Anatomy 0.000 description 1
- 210000002376 aorta thoracic Anatomy 0.000 description 1
- 210000001765 aortic valve Anatomy 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 210000001715 carotid artery Anatomy 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Classifications
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- 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
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- 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
-
- 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
- A61M2025/0064—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 which become stiffer or softer when heated
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
Abstract
The invention discloses a reinforced composite sheath tube, which comprises: the heating pipe comprises a pipe body, reinforcing ribs arranged in a double-spiral winding mode are embedded in the side wall of the pipe body, the reinforcing ribs comprise reinforcing pipes, heating wires are arranged in the center of the reinforcing pipes, flexible films are arranged on the outer sides of the heating wires, and hot melt adhesives are filled in the flexible films and the heating wires. According to the invention, the double-helix wound reinforcing ribs are embedded on the side wall of the tube body, so that the axial and radial strength of the sheath tube is greatly enhanced.
Description
Technical Field
The invention relates to the field of reinforced composite sheath tubes, in particular to a reinforced composite sheath tube.
Background
At present, minimally invasive interventional therapy is a surgical treatment method under image guidance, and medical instrument implants or medicines are delivered to a lesion position through a delivery system with minimal trauma during surgery so as to perform physical, mechanical or chemical treatment on the lesion position. Among them, the sheath has been widely used for minimally invasive interventional therapy as an important component of a delivery system.
For minimally invasive interventional therapy of blood vessels, an operator usually performs an anatomical incision or performs a puncture operation on a small blood vessel (such as a femoral artery) to form an inlet, and then implants medical instruments such as a covered stent into a body through the inlet, the small blood vessel and other channels by means of a conveying system, and conveys the medical instruments to target lesion positions such as a coronary artery, an aortic valve, a thoracic aorta, an abdominal aorta, an intracranial artery and a carotid artery. The sheath must provide sufficient radial strength so that medical device implants such as stents can be loaded within the sheath, and also provide sufficient axial strength so that medical device implants such as stents can be released from within the sheath to allow for safe implantation of the medical device implants. The axial and radial strength of the existing sheath tube is low.
Disclosure of Invention
Aiming at the problems, the invention provides a reinforced composite sheath, which solves the defect of low axial and radial strength of the conventional sheath.
The technical scheme adopted by the invention is as follows:
a reinforced composite sheath, comprising: the heating wire comprises a pipe body, wherein reinforcing ribs which are arranged in a double-spiral winding mode are embedded in the side wall of the pipe body, each reinforcing rib comprises a reinforcing pipe, a heating wire is arranged in the center of each reinforcing pipe, a flexible film is arranged on the outer side of each heating wire, and hot melt adhesive is filled in the flexible film and the heating wires. According to the invention, the reinforcing ribs which are spirally wound and arranged are embedded on the side wall of the tube body, so that the axial strength and the radial strength of the sheath tube are greatly enhanced, the hot melt adhesive filled between the flexible film and the heating wire is heated by the heating wire, when the hot melt adhesive enters a blood vessel, the hot melt adhesive is melted and liquefied when the heating wire is heated, so that the reinforcing tube is more flexible, the blood vessel is conveniently entered, the structural strength of the sheath tube needs to be enhanced after the blood vessel is entered, the hot melt adhesive is solidified when the heating wire is not heated, the strength of the sheath tube is higher, and the structural strength of the reinforcing ribs of the reinforcing tube can be adjusted as required.
Optionally, a heat conducting medium is disposed between the flexible film and the sidewall of the reinforcing tube.
Optionally, the heat conducting medium is a liquid.
Optionally, the heating wire is externally connected with a connecting rod, and the tail end of the connecting rod is provided with an arc-shaped heat conduction reinforcing arc-shaped plate.
Optionally, the number of the connecting rods is four, and the connecting rods are uniformly distributed on the heating wires.
Optionally, the connecting rod and the heat-conducting reinforcing arc plate are both made of flexible materials.
Optionally, the flexible film is wrapped outside the heat conduction reinforcing arc plate. The invention further improves the heat exchange efficiency through the connecting rod and the heat conduction reinforcing arc plate, and the connecting rod and the heat conduction reinforcing arc plate play a role of a framework, so that the reinforcing tube is more flexible, the bending resistance of the reinforcing tube is enhanced, and the reinforcing tube is prevented from being broken.
Optionally, a plurality of annular cavities are arranged in the side wall of the pipe body, the annular cavities are connected with two sides of the double-spiral reinforcing pipe at the same time, and the reinforcing pipe is provided with an opening communicated cavity. The cavity is arranged, so that the winding and bending heating wire can exchange heat, the temperature of the heating wire is more balanced, and the structural strength of the reinforcing rib of the reinforced composite sheath tube can be adjusted more quickly.
Optionally, the tail end of the heating wire is connected with an external power supply.
Optionally, the tube body is made of a high polymer material.
Advantageous effects
1. According to the invention, the reinforcing ribs which are spirally wound and arranged are embedded on the side wall of the tube body, so that the axial strength and the radial strength of the sheath tube are greatly enhanced, the hot melt adhesive filled between the flexible film and the heating wire is heated by the heating wire, when the hot melt adhesive enters a blood vessel, the hot melt adhesive is melted and liquefied when the heating wire is heated, so that the reinforcing tube is more flexible, the blood vessel is conveniently entered, the structural strength of the sheath tube needs to be enhanced after the blood vessel is entered, the hot melt adhesive is solidified when the heating wire is not heated, the strength of the sheath tube is higher, and the structural strength of the reinforcing ribs of the reinforcing tube can be adjusted as required.
2. The cavity is arranged, so that the winding and bending heating wire can exchange heat, the temperature of the heating wire is more balanced, and the structural strength of the reinforcing rib of the reinforced composite sheath tube is adjusted more quickly.
3. The invention further improves the heat exchange efficiency through the connecting rod and the heat conduction reinforcing arc-shaped plate, and the connecting rod and the heat conduction reinforcing arc-shaped plate play a role of a framework, so that the reinforcing tube is more flexible, the bending resistance of the reinforcing tube is enhanced, and the reinforcing tube is prevented from being broken.
Description of the drawings:
fig. 1 is a front partial structural view of a reinforced composite sheath according to embodiment 1 of the present invention;
fig. 2 is a sectional view of a reinforced composite type sheath according to embodiment 1 of the present invention;
fig. 3 is a cross-sectional view of a reinforcing rib of a reinforced composite sheath according to embodiment 1 of the present invention.
The figures are numbered:
1. the heat-conducting reinforcing arc-shaped plate comprises a pipe body, 2, reinforcing ribs, 3, reinforcing pipes, 4, heating wires, 5, a flexible film, 6, a connecting rod, 7, a heat-conducting reinforcing arc-shaped plate, 8, a cavity, 9 and an opening.
The specific implementation formula is as follows:
the following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; may be mechanically coupled, directly coupled, or indirectly coupled through an intermediary. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The technical scheme adopted by the invention is as follows:
as shown in fig. 1, 2 and 3, the present invention discloses a reinforced composite sheath, comprising: .
A reinforced composite sheath, comprising: the heating tube comprises a tube body 1, wherein a reinforcing rib 2 which is arranged in a double-spiral winding mode is embedded in the side wall of the tube body, the reinforcing rib comprises a reinforcing tube 3, a heating wire 4 is arranged at the center in the reinforcing tube, a flexible film 5 is arranged on the outer side of the heating wire, and the flexible film and the heating wire are filled with hot melt adhesive. And a heat-conducting medium is arranged between the flexible film and the side wall of the reinforcing pipe. The heat conducting medium is liquid. The heating wire is externally connected with a connecting rod 6, and the tail end of the connecting rod is provided with an arc-shaped heat conduction reinforcing arc-shaped plate 7.
The number of the connecting rods is four, and the connecting rods are uniformly distributed on the heating wires. The connecting rod and the heat conduction reinforcing arc plate are both made of flexible materials. The heating wire of the embodiment can actively generate heat, and can also be externally connected with an external heat source, and the heating wire plays a heat conduction role.
The flexible membrane cladding is in the outside of heat conduction reinforcing arc.
The side wall of the pipe body is internally provided with a plurality of annular cavities 8, the annular cavities are simultaneously connected with two sides of a double-spiral reinforcing pipe, and the reinforcing pipe is provided with an opening 9 communicated with the cavities.
The tail end of the heating wire is connected with an external power supply.
The pipe body is made of high polymer materials. The heating wire can adopt an electrified heating wire, and the heating wire is wound on the inner side wall of the sheath tube in a double-helix manner by a single wire body to form a crossed helical structure and returns to the same end part at the same time.
When this embodiment is implemented, when getting into the blood vessel, the heater can make the hot melt adhesive melt liquefaction when generating heat for the stiffening tube is more pliable and tough, in order to conveniently get into the blood vessel, need strengthen sheath pipe structural strength after getting into the blood vessel and be, can make the hot melt adhesive solidify when the heater does not generate heat this moment, makes the intensity of sheath pipe higher, makes the structural strength of the stiffening rib of stiffening tube to adjust as required.
Example 2
The invention also discloses a reinforced composite sheath tube, which comprises: the heating pipe comprises a pipe body, reinforcing ribs arranged in a double-spiral winding mode are embedded in the side wall of the pipe body, the reinforcing ribs comprise reinforcing pipes, heating wires are arranged in the center of the reinforcing pipes, flexible films are arranged on the outer sides of the heating wires, and hot melt adhesives are filled in the flexible films and the heating wires.
When this embodiment is implemented, when getting into the blood vessel, the heater can make the hot melt adhesive melt liquefaction when generating heat for the stiffening tube is more pliable and tough, in order to conveniently get into the blood vessel, need strengthen sheath pipe structural strength after getting into the blood vessel and be, can make the hot melt adhesive solidify when the heater does not generate heat this moment, makes the intensity of sheath pipe higher, makes the structural strength of the stiffening rib of stiffening tube to adjust as required.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present invention.
Claims (10)
1. A reinforced composite sheath, comprising: the heating pipe comprises a pipe body, reinforcing ribs arranged in a double-spiral winding mode are embedded in the side wall of the pipe body, the reinforcing ribs comprise reinforcing pipes, heating wires are arranged in the center of the reinforcing pipes, flexible films are arranged on the outer sides of the heating wires, and hot melt adhesives are filled in the flexible films and the heating wires.
2. The reinforced composite sheath of claim 1, wherein a heat conducting medium is disposed between the flexible membrane and the sidewall of the reinforcing tube.
3. The reinforced composite sheath of claim 2, wherein the heat transfer medium is a liquid.
4. The reinforced composite sheath tube of claim 1, 2 or 3, wherein the heating wire is externally connected with a connecting rod, and an arc-shaped heat-conducting reinforcing arc-shaped plate is arranged at the tail end of the connecting rod.
5. The reinforced composite type sheath according to claim 4, wherein the number of the connection rods is four, and the four connection rods are uniformly distributed on the heating wire.
6. The reinforced composite sheath of claim 5, wherein the connecting rods and the thermally conductive reinforcing arc are made of flexible material.
7. The reinforced composite sheath of claim, wherein the flexible membrane is wrapped around the outer side of the thermally conductive reinforcing arc.
8. The reinforced composite sheath pipe as claimed in claim 1, 2 or 3, wherein a plurality of annular cavities are formed in the side wall of the pipe body, the annular cavities are simultaneously connected to both sides of the double-spiral reinforcing pipe, and the reinforcing pipe is provided with an opening communicating cavity.
9. The reinforced composite sheath of claim 8, wherein an external power source is connected to an end of the heating wire.
10. A reinforced composite sheath according to claim 1, 2 or 3, wherein the tubular body is made of a polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963406.4A CN115400322B (en) | 2022-08-11 | 2022-08-11 | Reinforced composite sheath tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963406.4A CN115400322B (en) | 2022-08-11 | 2022-08-11 | Reinforced composite sheath tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115400322A true CN115400322A (en) | 2022-11-29 |
| CN115400322B CN115400322B (en) | 2023-11-07 |
Family
ID=84158691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210963406.4A Active CN115400322B (en) | 2022-08-11 | 2022-08-11 | Reinforced composite sheath tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115400322B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060064054A1 (en) * | 2002-11-15 | 2006-03-23 | Applied Medical Resources Corporation | Longitudinal sheath enforcement |
| CN1939550A (en) * | 2005-09-30 | 2007-04-04 | 微创医疗器械(上海)有限公司 | Fabric reinforcing tube and its production |
| CN103446655A (en) * | 2013-09-04 | 2013-12-18 | 杭州启明医疗器械有限公司 | Deflectable sheathing canal and delivery system with deflectable sheathing canal |
| WO2019019937A1 (en) * | 2017-07-27 | 2019-01-31 | 先健科技(深圳)有限公司 | Adjustable curved sheath and medical instrument |
-
2022
- 2022-08-11 CN CN202210963406.4A patent/CN115400322B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060064054A1 (en) * | 2002-11-15 | 2006-03-23 | Applied Medical Resources Corporation | Longitudinal sheath enforcement |
| CN1939550A (en) * | 2005-09-30 | 2007-04-04 | 微创医疗器械(上海)有限公司 | Fabric reinforcing tube and its production |
| CN103446655A (en) * | 2013-09-04 | 2013-12-18 | 杭州启明医疗器械有限公司 | Deflectable sheathing canal and delivery system with deflectable sheathing canal |
| WO2019019937A1 (en) * | 2017-07-27 | 2019-01-31 | 先健科技(深圳)有限公司 | Adjustable curved sheath and medical instrument |
| CN109689147A (en) * | 2017-07-27 | 2019-04-26 | 先健科技(深圳)有限公司 | Adjustable bending sheath tube and medical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115400322B (en) | 2023-11-07 |
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