Ultrathin-wall heat shrinkable tube
By adopting an ultra-thin wall heat shrink tube structure, the characteristics of PTFE layer inner tube and PEBAX layer outer tube are used, the problem that traditional heat shrink tubes are difficult to cope with complex environments in the medical field is solved, and higher biocompatibility is achieved , electrical insulation performance and high temperature resistance meet special needs in the medical field.
Patent Information
- Application Number
- CN202420973543.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-07
AI Technical Summary
Traditional heat shrink tubes are difficult to cope with high temperature, high pressure and corrosive disinfection environments in the application of traditional heat shrink tubes in the medical field, and the single material and structural design are limited, making it difficult to meet complex and rigorous application needs.
Adopt ultra-thin wall heat shrink tube structure, including inner shaft core, PTFE layer inner tube and PEBAX layer outer tube. The PTFE layer inner tube provides good biocompatibility and electrical insulation performance. The PEBAX layer outer tube can be melted by heating. The inner penetration core changes shape to meet medical needs.
It improves the biocompatibility, electrical insulation and high temperature resistance of ultra-thin wall heat shrink tubes, meets the special needs of medical equipment in the medical field, and ensures stable performance in high temperature, high pressure and disinfection environments.
Smart Images
Figure CN222444275U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of heat shrinkable tubes, and in particular to an ultra-thin-wall heat shrinkable tube. Background Art
[0002] In recent years, a medical ultra-thin heat shrink tubing has been gradually applied to the needle core of the puncture needle, that is, the medical ultra-thin heat shrink tubing is sheathed on the outer periphery of the needle core to enhance the strength of the needle core.
[0003] In the medical field, especially during surgery and diagnosis and treatment, extremely high demands are placed on medical devices, particularly medical catheters and instruments that must withstand high temperatures, high pressures, and corrosive sterilization environments. These devices must not only possess excellent biocompatibility and durability, but also maintain stable performance during repeated sterilization and use. While traditional heat shrink tubing can meet the protection and insulation needs of medical devices to a certain extent, its limited material and structural design make it difficult to cope with the more complex and demanding application environments in the medical field. Utility Model Content
[0004] In order to meet the special needs of the medical field for medical equipment, the present application provides an ultra-thin-wall heat shrink tube.
[0005] This application provides an ultra-thin wall heat shrinkable tube, which adopts the following technical solution:
[0006] An ultra-thin-wall heat shrink tube comprises an inner wear shaft core, an outer shell of the inner wear shaft core is provided with a PTFE layer inner tube, and an outer shell of the PTFE layer inner tube is provided with a PEBAX layer outer tube.
[0007] By adopting the above technical solution, the PTFE layer inner tube has good biocompatibility and will not cause adverse reactions when in contact with human tissue, thereby improving the safety of the ultra-thin wall heat shrink tube. The PTFE layer inner tube has excellent electrical insulation performance, protecting the safety of patients and medical staff. The PTFE layer inner tube has good high temperature resistance, and the PEBAX layer outer tube can be melted by heating. After the PEBAX layer outer tube is heated, the shape of the ultra-thin wall heat shrink tube is changed by inserting an internal shaft core, and it can be used to meet the special needs of the medical field for medical equipment.
[0008] Optionally, the PEBAX outer tube is provided with a protective layer.
[0009] By adopting the above technical solution, the PEBAX outer tube is protected by the protective layer, thereby reducing the possibility of the PEBAX outer tube melting before storage or use.
[0010] Optionally, the protective layer is provided with a through groove along the length direction of the inner shaft core, and a sealing component for connecting the protective layers on both sides of the through groove is provided on the protective layer.
[0011] By adopting the above technical solution, the protective layer can be easily peeled off from the outer tube of the PEBAX layer through the through groove, and the two sides of the protective layer can be connected through the sealing component.
[0012] Optionally, the sealing assembly includes a sealing strip, and the sealing strip is bonded to the protective layers on both sides of the through groove.
[0013] By adopting the above technical solution, the sealing strip is torn off from the protective layer, so that the protective layer can be easily peeled off from the outer tube of the PEBAX layer.
[0014] Optionally, tearing portions are provided on both sides of the protective layer, and a plurality of cuts are provided on one side of the tearing portion, and the plurality of cuts are all provided along the length direction of the inner shaft core.
[0015] By adopting the above technical solution, the protective layer can be easily peeled off from the PEBAX outer tube through the cuts and the tearing parts.
[0016] Optionally, the protective layer outer shell is provided with a fixing ring.
[0017] By adopting the above technical solution, the fixing ring limits the position of the protective layer, thereby improving the stability of the protective layer in protecting the PEBAX outer tube.
[0018] Optionally, an annular elastic member is provided on one side of the tearing portion located at the incision.
[0019] By adopting the above technical solution, the tearing portion is conveniently limited by the elastic member, so that the protective layer is sleeved on the PEBAX outer tube to protect the PEBAX outer tube.
[0020] Optionally, a support ring is provided at the end of the inner shaft core.
[0021] By adopting the above technical solution, the inner shaft core and the PTFE layer inner tube are relatively fixed by the support ring.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. The PTFE inner tube has excellent biocompatibility and will not cause adverse reactions when in contact with human tissue, improving the safety of ultra-thin-wall heat shrink tubing. The PTFE inner tube has excellent electrical insulation properties, protecting the safety of patients and medical staff. The PTFE inner tube has good high-temperature resistance, and the PEBAX outer tube can be melted by heating. After heating the PEBAX outer tube, the shape of the ultra-thin-wall heat shrink tubing can be changed by inserting an internal shaft core, meeting the special needs of medical equipment in the medical field.
[0024] 2. The protective layer protects the PEBAX outer tube to reduce the possibility of the PEBAX outer tube melting before storage or use. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the internal structure of the first embodiment.
[0026] Figure 2 It is a schematic diagram of the overall structure of embodiment 1.
[0027] Figure 3 It is a schematic diagram of the overall structure of the second embodiment.
[0028] Explanation of the accompanying reference numerals: 1. inner shaft core; 11. support ring; 2. PTFE layer inner tube; 3. PEBAX layer outer tube; 4. protective layer; 41. tearing portion; 42. cut; 5. sealing strip; 6. fixing ring; 7. elastic member. DETAILED DESCRIPTION
[0029] The present application is further described in detail below in conjunction with all the accompanying drawings.
[0030] Example 1:
[0031] The embodiments of the present application disclose an ultra-thin-wall heat shrinkable tube.
[0032] Reference Figure 1 An ultra-thin-wall heat shrinkable tube comprises an inner threading core 1, an inner threading core 1 being outer-coated with a PTFE-layer inner tube 2, which in turn is outer-coated with a PEBAX-layer outer tube 3. The PTFE-layer inner tube 2 has excellent biocompatibility and does not cause adverse reactions when in contact with human tissue, thereby improving the safety of the ultra-thin-wall heat shrinkable tube. The PTFE-layer inner tube 2 has excellent electrical insulation properties, protecting the safety of patients and medical staff. The PTFE-layer inner tube 2 has good high-temperature resistance, and the PEBAX-layer outer tube 3 can be melted by heating. After heating the PEBAX-layer outer tube 3, the shape of the ultra-thin-wall heat shrinkable tube can be changed by the inner threading core 1, allowing it to be used to meet the special needs of the medical field for medical equipment.
[0033] Reference Figure 1 and Figure 2 The PEBAX outer tube 3 is covered with a protective layer 4. The protective layer 4 protects the PEBAX outer tube 3 and reduces the possibility of the PEBAX outer tube 3 melting before storage or use.
[0034] Reference Figure 1 and Figure 2The protective layer 4 is provided with a through groove along the length direction of the inner wear shaft core 1, and the protective layer 4 can be easily peeled off from the PEBAX layer outer tube 3 through the through groove. A sealing component for connecting the protective layers 4 on both sides of the through groove is provided on the protective layer 4. The sealing component includes a sealing strip 5, which is bonded to the protective layer 4 on both sides of the through groove. By tearing off the sealing strip 5 from the protective layer 4, the protective layer 4 can be easily peeled off from the PEBAX layer outer tube 3.
[0035] Reference Figure 1 A support ring 11 is installed at the end of the inner shaft core 1. The PTFE layer inner tube 2 and the PEBAX layer outer tube 3 are both soft tubes. The outer diameter of the support ring 11 is larger than the inner diameter of the PTFE layer inner tube 2. The relative fixation of the inner shaft core 1 and the PTFE layer inner tube 2 is achieved by the support ring 11.
[0036] The implementation principle of an ultra-thin-wall heat shrinkable tube in an embodiment of the present application is as follows: the PTFE layer inner tube 2 has good biocompatibility and will not cause adverse reactions when in contact with human tissue, thereby improving the safety of the use of the ultra-thin-wall heat shrinkable tube. The PTFE layer inner tube 2 has excellent electrical insulation performance, protecting the safety of patients and medical staff. The PTFE layer inner tube 2 has good high-temperature resistance. The PEBAX layer outer tube 3 can be melted when heated. After heating the PEBAX layer outer tube 3, the shape of the ultra-thin-wall heat shrinkable tube is changed by inserting the inner shaft core 1, and the tube can be used to meet the special needs of the medical field for medical equipment.
[0037] Example 1:
[0038] Reference Figure 3 The difference between Example 2 and Example 1 is that a tearing portion 41 is provided on both sides of the protective layer 4, and a plurality of cuts 42 are opened on one side of the tearing portion 41. The plurality of cuts 42 are arranged along the length direction of the inner shaft core 1. A fixing ring 6 is provided on the outer sleeve of the protective layer 4. The fixing ring 6 is elastic, and the protective layer 4 is easily peeled off from the PEBAX layer outer tube 3 through the cuts 42 and the tearing portion 41.
[0039] Reference Figure 3 A tearing groove is provided on one side of the tearing portion 41 along the circumference of the PEBAX outer tube 3. The tearing groove facilitates peeling the tearing portion 41 from the PEBAX outer tube 3.
[0040] Reference Figure 3 An annular elastic member 7 is provided on one side of the tear portion 41 located at the cut 42. The elastic member 7 can be an elastic ring. The elastic member 7 can be used to limit the tear portion 41 so that the protective layer 4 is placed on the PEBAX outer tube 3 to protect the PEBAX outer tube 3.
[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An ultra-thin wall heat shrinkable tube, characterized in that: The invention comprises an inner threading shaft core (1), wherein the inner threading shaft core (1) is provided with a PTFE layer inner tube (2), wherein the PTFE layer inner tube (2) is provided with a PEBAX layer outer tube (3), wherein the PEBAX layer outer tube (3) is provided with a protective layer (4), wherein the protective layer (4) is provided with a through groove along the length direction of the inner threading shaft core (1), wherein the protective layer (4) is provided with a sealing component for connecting the protective layers (4) on both sides of the through groove, wherein the sealing component comprises a sealing strip (5), wherein the sealing strip (5) is bonded to the protective layers (4) on both sides of the through groove.
2. The ultra-thin wall heat shrinkable tube according to claim 1, characterized in that: The protective layer (4) is provided with tearing portions (41) on both sides, and a plurality of cuts (42) are provided on one side of the tearing portion (41), and the plurality of cuts (42) are all provided along the length direction of the inner threading core (1).
3. The ultra-thin wall heat shrinkable tube according to claim 1, characterized in that: The protective layer (4) is provided with a fixing ring (6) on its outer shell.
4. The ultra-thin wall heat shrinkable tube according to claim 2, characterized in that: The tearing portion (41) is provided with an annular elastic member (7) on one side of the cutting opening (42).
5. The ultra-thin wall heat shrinkable tube according to claim 1, characterized in that: A support ring (11) is provided at the end of the inner shaft core (1).