KR20170009530A - Casting tape support and preparing thereof - Google Patents
Casting tape support and preparing thereof Download PDFInfo
- Publication number
- KR20170009530A KR20170009530A KR1020150101751A KR20150101751A KR20170009530A KR 20170009530 A KR20170009530 A KR 20170009530A KR 1020150101751 A KR1020150101751 A KR 1020150101751A KR 20150101751 A KR20150101751 A KR 20150101751A KR 20170009530 A KR20170009530 A KR 20170009530A
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- South Korea
- Prior art keywords
- polyester
- support
- load
- casting tape
- yarn
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/04—Plaster of Paris bandages; Other stiffening bandages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/07—Stiffening bandages
- A61L15/12—Stiffening bandages containing macromolecular materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/18—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
The present invention relates to an orthopedic casting tape support and a method of manufacturing the same, and more particularly, to an orthopedic casting tape support having improved elasticity and a method of manufacturing the same.
Generally, casting tape for orthopedic surgery is made of fiberglass, and the polyurethane resin is included in the fabric. When it is exposed to moisture such as moisture or water, it causes chemical reaction and starts to harden. In the orthopedic diseases such as fractures, Is being used as a medical device that replaces the system.
Conventionally, casting tapes made of glass fiber are lightweight and durable, and are gradually replacing the plaster molding method due to advantages such as quick procedure time, convenient operation and easy back-end. However, the tape made of glass fiber is damaged by the impact due to the material property, or allergy is caused by the glass fiber dust, and in particular, the glass fiber dust is generated in the cutting step for manufacturing and use, causing respiratory diseases and skin diseases There is a problem that the discarded tape is not burned.
On the other hand, Korean Patent Publication No. 201873 discloses a polyester support for casting tapes in which polyester fibers and fibers that impart stretchability in an oblique direction of the support are mixed in the polyester support, There has been proposed a polyester support for casting tape in which polyester elastic fibers alone or elastic fibers mixed with polyurethane elastic fibers mixed with polyester elastic fibers are mixed as elastic fibers for imparting extensibility in a slanting direction of a support.
Although the above-mentioned method has the advantage of improving the elongation, it is a characteristic of the elastic fiber which is fully recovered after elongation, which causes excessive shrinkage of the elongated support during the curing process, There was a problem that caused.
Therefore, there is a problem in that the surface area of the final woven fabric is increased and the surface pores are remarkably decreased. Especially, the amount of the curing type urethane resin to be applied is increased, Which causes the micropores in the fabric to have poor ventilating ability, resulting in the same disadvantages of the gypsum molding method, and the curing time is increased during the procedure.
Therefore, there has been a demand for a casting tape which can provide a sufficient degree of compression and ventilation after performing the operation as a support.
It is an object of the present invention to provide a casting tape support in which the elongation recovery rate is ensured in which the pain caused by compression is relieved while maintaining the mechanical elongation.
Another object of the present invention is to provide a casting tape support in which a hot water treatment process is omitted and process productivity is improved.
The present invention relates to a support for an orthopedic casting tape, wherein the support comprises a ratio of 1: 1 to 1: 2 on a weight basis of a polyester-based yarn and a polyester based potting yarn, The present invention provides a support for an orthopedic casting tape comprising a knitted fabric in a state of being shrunk by dry heat treatment.
The present invention also provides a support for an orthopedic casting tape wherein the support has an average elastic modulus of 0.010 to 0.015.
The present invention also provides a support for an orthopedic casting tape wherein the recovery factor of the support is 0.07 to 0.08.
The present invention also provides a support for an orthopedic casting tape having an extension-recovery coefficient of from 0.045 to 0.055.
The present invention also relates to a method of producing a support for an orthopedic casting tape, wherein the support comprises a slurry of polyester-based and polyester-based potting slabs in a ratio of 1: 1 to 1: 2 by weight, A stage in which ester is formed and arranged; Treating the polyester-based latent housing by the dry heat treatment so that the polyester-based latent housing can be shrunk from the prepared fabric; And applying a polyurethane resin to the heat-treated fabric. The present invention also provides a method of producing a support for an orthopedic casting tape.
The present invention has the advantage of securing the kidney recovery rate in which the pain due to compression is alleviated while maintaining the mechanical strength and strength by suggesting optimal conditions for kidney-recovery.
Further, the present invention is characterized in that the processability is improved by controlling the dry heat treatment process rather than the wet heat treatment.
1 is a load-elongation graph according to a preferred embodiment of the present invention.
2 is a load-elongation recovery graph according to a preferred embodiment of the present invention.
FIG. 3 is a graph of elongation-elongation recovery according to a preferred embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.
The terms "about "," substantially ", etc. used to the extent that they are used herein are intended to be taken to mean an approximation of, or approximation to, the numerical values of manufacturing and material tolerances inherent in the meanings mentioned, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure.
An orthopedic casting tape support according to an embodiment of the present invention may be formed as a knitted fabric. Among knitted fabrics, it can be made of warp yarn considering the extensibility of the fabric itself.
The support according to an embodiment of the present invention may be a general material as a warp piece, but may be a polyester material as a non-limiting example. Mechanical properties and hydrophobicity. Also, the warp yarns may be of a plurality of yarns, which may be of two different kinds as non-limiting examples, one of which may be a general polyester yarn, and the other of which may be polyester based.
This preparation process can be defined as a knitting preparation process, and the above used yarn and light yarn can be prepared. Cotton yarns can be supplied and knitted with general polyester yarns and polyester yarn stocks 1: 1 to 1: 2.
When the preparation process is completed as described above, the knitted fabric can be formed into a knitted fabric by a conventional knitting method.
The knitted substrate may undergo a shrinkage process, which is maintained in a shrunk state relative to its original potential, and the shrunk potential is elongated during use, thereby increasing the elongation capacity, . This extensibility is due to the casting tape being stretched to wrap the affected part in use.
In the conventional DTY support, DTY is shrunk by heating or hot water. In case of DTY, it is difficult to obtain sufficient stretching force when dry heat treatment is performed, and the shrinkage process is performed by wet heat treatment using hot water. The primary drying process after the wet heat treatment is usually carried out at a high temperature of 300 ° C or higher to induce deformation of the polyester, thereby damaging the stretching force. In addition, a process for the primary drying with a separate wet heat treatment apparatus Large facilities are required, and there is a disadvantage that a large drying chamber in the form of a chamber is necessary to remove the moisture remaining in the secondary. That is, the wet heat treated fabric must be dried through a hot roll heater and then removed from the large drying facility (chamber) for at least about 48 hours, resulting in significant process costs.
Also, even if the drying step is sufficiently carried out, the casting tape of the present invention must be applied after the hydrocracking resin, and if the stomach drying process is insufficient, hardening due to exposure to moisture may occur and the defective rate may be increased. Significant difficulties arise.
Accordingly, the present invention is advantageous in that the moisture contained in the fabric can be controlled by omitting the separate moisture drying step by continuously performing the dry heat treatment at about 100 to 150 ° C without the wet heat treatment.
The stretchability of the support according to the present invention is preferably 0.020 to 0.025, which is defined as a slope in relation to the load (Kgf) - strain (%). If it exceeds the above range, a load is considerably required to elongate the tape. That is, an excessive effort of the practitioner is required to wrap the lesion in the procedure, and there is a high possibility that excessive compression is likely to occur in relation to the renal recovery rate to be described later. In addition, the inventors of the present invention evaluated that when the diameter is less than the above range, there is a problem that the elongation is well under a small load during the procedure, but the shape stability and proper pressing force do not occur.
On the other hand, in the used environment, the stretched casting tape must be retracted again. For this purpose, elastic yarn (such as spandex or rubber yarn) is used. However, as described above, the elastic yarn has a disadvantage that it strongly presses the affected part due to excessive shrinking and restoring force. Therefore, it is necessary to examine the optimum value of the shrinking force not to cause pain by pressing the affected part while holding the shrinking force enough to fix the casting tape to the affected part.
Therefore, the inventors of the present inventors have found that the elongation recovery rate is preferably 0.12 to 0.18 when the derivative value is defined as the recovery factor in relation to the load (Kgf) - recovery rate (%). The recovery rate is in the upper range in order to maintain the shape without causing pain to the affected part due to excessive resilience after the procedure.
On the other hand, the correlation between the elongation and the recovery rate is defined as the deviation of the slope with respect to the same load (Kgf), which will be referred to as the elongation-recovery coefficient in this specification. The coefficient is preferably 6.0 to 7.5. This relationship can be regarded as a correlation coefficient that can be easily elongated for convenience of operation at the time of the procedure and can prevent excessive recovery at the time of renal recovery.
Examples will be described below.
Example
Using a 300/96 (D / F) polyester yarn as a weft yarn and a 150/48 (D / F) polyester yarn as a warp yarn in a 300/96 (D / F) polyester yarn and a polyester yarn in a 1: 2 ratio , And the result was classified as a lightweight tissue. After the kneading, the knitted fabric was shrunk for three consecutive times in a heater at 120 ° C, and then the elongation and elongation recovery of the knitted fabric were measured. The results are shown in Table 1.
* Elongation (%) Test Method
- Condition 1: Leave a load of 0.1 Kgf in a dry state for 1 minute, and measure the distance between lines
- Condition 2: Leave a load of 0.2 Kgf in a dry state for 1 minute and measure the distance between the lines
- Condition 3: Leave a load of 0.3 Kgf in a dry state for 1 minute and measure the distance between the lines
- Condition 4: Leave a load of 0.4 Kgf in a dry state for 1 minute, and measure the distance between lines
- Condition 5: Leave a load of 0.5 Kgf in a dry state for 1 minute, and measure the distance between lines
- Condition 6: Leave a load of 0.6 Kgf in a dry state for 1 minute, and measure the distance between lines
- Condition 7: Leave a load of 0.7 Kgf in a dry state for 1 minute, and measure the distance between the lines
- Condition 8: Leave a load of 0.8 Kgf in a dry state for 1 minute, and measure the distance between lines
- Condition 9: Leave a load of 0.9 Kgf in a dry state for 1 minute and measure the distance between the lines
- Condition 10: Leave a load of 1.0 Kgf in a dry state for 1 minute, and measure the distance between lines
* Renal recovery rate (%) Test method
- Condition 1: Leave the load of 0.1 Kgf in a dry condition for 1 minute after extending to 300 mm, leave the load on a flat surface for 1 minute, measure the distance between the marks
- Condition 2: The load of 0.2 Kgf was applied, and it was left to stand for 1 minute after extending to 300 mm. After the load was removed, it was left on a flat surface for 1 minute,
- Condition 3: The load of 0.3 Kgf was applied, and it was left to stand for 1 minute after extending to 300 mm. After the load was removed, it was left on a flat stand for 1 minute,
- Condition 4: Leave the load of 0.4 Kgf in a dry state for 1 minute after extension to 300 mm, leave the load on a flat surface for 1 minute, measure the distance between the lines
- Condition 5: The load of 0.5 Kgf was left to stand for one minute after extending to 300 mm in a dry state. After the load was removed, it was left on a flat surface for 1 minute,
- Condition 6: The load of 0.6 Kgf was left to stand for one minute after extending to 300 mm in a dry state, the above load was removed, then left on a flat surface for 1 minute,
- Condition 7: The load of 0.7 Kgf was left to stand for one minute after extending to 300 mm with the load applied. After removing the load, left on a flat surface for 1 minute,
- Condition 8: Allow the load of 0.8 Kgf to stand for one minute after extension to 300 mm, leave the load on a flat surface for 1 minute, measure the distance between the lines
- Condition 9: The load of 0.9 Kgf is applied, and it is left to stand for 1 minute after extending to 300 mm. After the load is removed, it is left on a flat stand for 1 minute,
- Condition 10: The load of 0.9 Kgf was left to stand for one minute after extending to 300 mm with the load applied. After the load was removed, it was left on a flat bench for 1 minute,
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.
Claims (5)
Wherein the support comprises a woven fabric in which the polyester based latent sheaves and the polyester based latent sheaves are in a ratio of 1: 1 to 1: 2 on a weight basis and the polyester based latent sheaves are contracted by a dry heat treatment A scaffold for an orthopedic casting tape comprising:
The support of an orthopedic casting tape having an average elastic modulus of 0.020 to 0.025.
Wherein the support has a recovery factor of from 0.12 to 0.18.
A support for an orthopedic casting tape having an elongation-recovery coefficient of 6.0 to 7.5.
Wherein the support is composed of a polyester based yarn and a polyester based yarn in a ratio of 1: 1 to 1: 2 on a weight basis and the yarn is composed of polyester yarn;
Treating the polyester-based latent housing by the dry heat treatment so that the polyester-based latent housing can be shrunk from the prepared fabric; And
And applying a polyurethane resin to the heat-treated fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150101751A KR20170009530A (en) | 2015-07-17 | 2015-07-17 | Casting tape support and preparing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150101751A KR20170009530A (en) | 2015-07-17 | 2015-07-17 | Casting tape support and preparing thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170009530A true KR20170009530A (en) | 2017-01-25 |
Family
ID=57991550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150101751A KR20170009530A (en) | 2015-07-17 | 2015-07-17 | Casting tape support and preparing thereof |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20170009530A (en) |
-
2015
- 2015-07-17 KR KR1020150101751A patent/KR20170009530A/en not_active Application Discontinuation
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