Unlock instant, AI-driven research and patent intelligence for your innovation.

A composite fiber with self-expanding effect, its preparation method and drying device

A composite fiber, self-expanding technology, applied in the direction of fiber treatment, fiber type, ultrasonic/sonic fiber treatment, etc., can solve the problems of large skin trauma, great pain for patients, decreased stimulation, etc., and achieve the effect of uniform coating

Active Publication Date: 2019-06-18
SHANGHAI TAIHENG SCI & TRADE
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem brought about by this is that the large-diameter needle tube will cause greater trauma to the skin, and the patient's pain will be greater. Many patients cannot receive treatment because they are afraid of the thick needle tube.
In addition, clinically, for the implantation of large-volume materials, a certain amount of local anesthetic must be injected in advance to operate.
Another problem is that during the process of gradual absorption, the diameter of the material gradually shrinks, the amount of stimulation gradually decreases, and the therapeutic effect gradually disappears. It is necessary to re-inject the thread body to obtain stimulation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A composite fiber with self-expanding effect, its preparation method and drying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Prepare according to the following steps

[0037] 1. Place the PGA slices in a vacuum oven and dry them at 80°C for 48 hours;

[0038] 2. Put the dried chips into a small screw extruder, and melt-spin them at 230°C to obtain monofilaments with a diameter of 0.1mm;

[0039] 3. Put the monofilament into the plasma surface treatment instrument, adjust the parameters: make the vacuum degree 30Pa, the power 100w, and take out the monofilament after 30s of treatment;

[0040] 4. Prepare 2.0% chitosan acetic acid solution, fill it into the slurry tank of the monofilament surface coating device, guide the surface-treated PGA monofilament through the slurry tank, and then pour it from bottom to top from the bottom to top of the 0.15mm slurry tank. Pass through the hole, then pass through the tube dryer with the temperature set at 65°C, and then roll into shape;

[0041] 5, repeat above-mentioned steps and carry out repeated coating 4 times, promptly obtain the co...

Embodiment 2

[0043] Embodiment 2: prepare according to the following steps

[0044] 1. Place the PGLA slices in a vacuum oven and dry at 80°C for 48 hours;

[0045] 2. Put the dried slices into a small screw extruder, and carry out melt spinning at a temperature of 228°C to obtain monofilaments with a diameter of 0.15mm;

[0046] 3. Put the monofilament into the plasma surface treatment instrument, adjust the parameters: make the vacuum degree 30Pa, the power 100w, and take out the monofilament after 90s of treatment;

[0047] 4. Prepare 2.0% sodium hyaluronate alkali solution, fill it into the slurry tank of the monofilament surface coating device, guide the surface-treated PGLA monofilament through the slurry tank, and pass it 0.20mm from bottom to top on the filter plate through the hole, and then through the tube dryer with the temperature set at 65°C, and then coiled;

[0048] 5. Repeat the above steps to repeat the coating 4 times to obtain a composite material of sodium hyaluronat...

Embodiment 3

[0050] Embodiment 3: prepare according to the following steps

[0051] 1. Place the PGA slices in a vacuum oven and dry them at 80°C for 48 hours;

[0052] 2. Put the dried chips into a small screw extruder, and melt-spin them at a temperature of 230°C to obtain monofilaments with a diameter of 0.15mm;

[0053] 3. Put the monofilament into 0.05M H 2 SO 4 solution, soaked at room temperature for 0.5 hours, taken out, rinsed with deionized water, and dried for later use;

[0054] 4. Prepare 10% chitosan aqueous solution, fill it into the slurry tank of the monofilament surface coating device, guide the surface-treated PGA monofilament through the slurry tank, and then pass through the 0.20mm hole on the filter plate from bottom to top through the middle, and then through the tube dryer with the temperature set at 65°C, and then coiled;

[0055] 5, repeat above-mentioned steps and carry out repeated coating 6 times, promptly obtain the composite material of chitosan coating P...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a complex fiber having a self-expansion effect, a preparation method thereof and a drying device. The complex fiber is prepared from polysaccharide and degradable synthetic high polymer monofilament, wherein the degradable synthetic high polymer monofilament is coated with the polysaccharide in the form of surface coating, the degradable synthetic high polymer monofilament is pre-pretreated, the mass ratio of the polysaccharide to the degradable synthetic high polymer monofilament is 0.1:99.9 to 50:50. PGA, PGLA, PDO, PLC and other degradable synthetic high polymer materials are adopted, and the monofilament is prepared through a melt spinning technology and then is coated with a polysaccharide layer on the surface. In an in-vitro environment, the material is designed into a superfine-diameter fiber to decrease the needling pain and skin hurt. The difference between the product and a traditional acupoint embedding material is that after a preliminary-stage stimulatory effect is played in an implanted body, the polysaccharide produces volume expansion in the in-vivo environment, and a continuous stimulating effect is produced. After a certain time, the high polymer and the surface coating in the composite material are gradually degraded into small molecules, and the small molecules are discharged out of a body through circulation.

Description

technical field [0001] The invention relates to a composite fiber, a preparation method thereof and a drying device, more particularly to a composite fiber with self-expansion effect and a preparation method thereof. Background technique [0002] Acupuncture and moxibustion is a traditional means of treating diseases in my country, with a wide range of indications and popularity. However, while acupuncture and moxibustion are popular, they also face many limitations in actual operation. For example, the local stimulation time of acupuncture and moxibustion on acupoints is short, requiring daily treatment, which consumes a lot of energy and time; different diseases and different groups of people require stimulation intensity and stimulation. The time is not equal. [0003] With the development of acupuncture and moxibustion, the method of retaining needles is used clinically to prolong the stimulation time of needles in acupoints. By retaining the needle, on the one hand, i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/03D06M10/02D06M11/55D06M11/38D06M13/144D06M13/127D06M11/64D06M11/60D06M11/11D01F6/62D01F6/84D01D5/08D06B15/00D06B15/08D06M101/32
CPCD01D5/08D01F6/62D01F6/84D06B15/00D06B15/085D06M10/025D06M11/11D06M11/38D06M11/55D06M11/60D06M11/64D06M13/127D06M13/144D06M15/03D06M2101/32
Inventor 赵莉张佩华孙文善郯志清杨庆
Owner SHANGHAI TAIHENG SCI & TRADE