JPS60179059A - Sugical material for trunck band - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field to which the Invention Pertains] The present invention relates to a material for making a surgical trunk band that is used by being wrapped around the trunk for protecting and fixing an affected area.

[Prior art and its problems]

Surgical trunk belts are used to protect and immobilize the affected area.
Walls are used by wrapping them around the trunk of the body, such as the abdomen or lower back.They can be classified as follows depending on the area of use and purpose. In other words, rib fracture fixation bands and lumbar pain bands are used for orthopedic purposes to fix affected areas due to bone, muscle abnormalities, etc., and surgical uses to protect incisions after surgery are used to fix affected areas. There is a posterior band. These trunk belts protect and immobilize the affected area, and because they often come into direct contact with the patient's skin, they must have the following functions.

(1) It must be strong enough to fix the affected area without stretching even when pulled. (2) It must be flexible enough to fit the body well. (3) It must be breathable and absorb moisture to prevent stuffiness during use. (4) It does not cause a rash even if it comes into direct contact with the skin. There are various types of materials currently used as trunk borrowed materials, ranging from simple materials to composite materials. There is no one that satisfies all of the above functions. That is, as a single item, exposed fabrics and knitted fabrics have been used for a long time, but they are not used much because they have poor shape retention, are prone to deformation and sagging, and are inferior in protection and fixing functions. As a double layer structure, fabric-plastic foam is a kite, car-11
Since the foam is placed on the rl surface, there is a high possibility of causing a rash. In addition, three-layer structures include fabric, plastic foam, fabric, fabric, mesh plastic plate, and fabric, but the former uses adhesive, which may cause rashes, and has poor breathability and is prone to swelling. The latter has the disadvantage of being thick and bulky, and the latter has the disadvantage of being inflexible and difficult to fit. In any case, there is currently no material that is flexible, strong, and breathable without causing rashes, and both have the disadvantage that cut edges can fray if not sewn. ing.

[Purpose of the invention]

An object of the present invention is to obtain a material that has all the functions required as a surgical trunk material.

[Structure of the invention]

According to the invention, the above object is achieved by partially heat welding the entire surface of a nonwoven fabric made of thermoplastic fibers.

Suitable nonwoven fabrics include nonwoven fabrics made from fibers made from thermoplastic plastics such as nylon, polyester, polyvinyl acetate, vinyl chloride, vinylidene chloride, and polyethylene.

Partial heat welding can be formed by welding a pattern such as a grid, dots, waves, or cross over the entire surface of the nonwoven fabric using a heated roll, an ultrasonic welder, or the like.

Non-woven fabrics are bulky (light and have good heat retention)
It has the characteristics of high air permeability, does not fray like textiles, and has little directionality, but it has the disadvantage of being weak in strength. In this regard, according to the present invention, in the thermally welded area of the nonwoven fabric, the thermoplastic fibers that were originally entangled melt and form a film, increasing the strength. Because the parts that retain the properties of nonwoven fabric are densely mixed over the entire surface of the nonwoven fabric, the strength can be increased without losing the advantages of nonwoven fabric.

[Embodiments of the invention]

Next, embodiments of the present invention will be described with reference to the drawings.

1 to 4 show various patterns on the surface of the nonwoven fabric according to the present invention. The nonwoven fabric 1 shown in FIG. 2 and a rectangular unprocessed portion 3 existing therebetween.

Four pieces of nonwoven fabric shown in Fig. 2 are thermally welded to form a dotted pattern, with dotted processed areas 5 and other unprocessed areas 6.
and have.

The nonwoven fabric 7 shown in FIG.
It is equipped with

The nonwoven fabric 10 shown in FIG. 4 is thermally welded to form a cross-shaped pattern, and includes a cross-shaped processed portion 11 and other non-processed portions 12.

The thermal welding process can be performed using a heated roll, an ultrasonic welder, or the like. FIG. 5 shows a method using a heated roll, in which the gap between a heated roll 4 having a large number of protrusions 13 corresponding to the evaporation pattern on its surface and a roll 15 placed opposite to the heated roll 4 is shown. Pass the nonwoven fabric 16 through
Applying pressing force to the nonwoven fabric 16 while rotating both rolls,
When the nonwoven fabric 16 is pulled out in the direction of the arrow, the fibers 17 where the protrusions 13 come into contact are thermally welded to form a film. FIG. 6 shows a method using an ultrasonic welder, in which a nonwoven fabric 21 is passed between an ultrasonic vibrator 2° and a cold roll 19 having a large number of protrusions 18 corresponding to the evaporation pattern on the surface, and the cold roll]9 When the nonwoven fabric 21 is pulled out in the direction of the arrow while being rotated, the portion 22 in contact with the protrusion 18 is similarly heat-welded.

FIG. 7 shows a cross section of the material according to the present invention, where the white part 23 is the unprocessed part (unprocessed part), which is the nonwoven fabric material as it is, and the shaded part 24 is the part that has been heat-welded. In the part (processing part), it becomes a film-like material due to the persistence of the melting process.
It is slightly larger than 3.

Example 1 "Sontara A8" manufactured by DuPont, OOJ, which is made of 100% polyester fiber, was used as a nonwoven fabric and heat-welded into a lattice pattern by ultrasonic bonding.The properties of the resulting material were compared to the original nonwoven fabric. Compared to the above, the strength was significantly improved and the air permeability was only slightly decreased.

Example 2 DuPont Sontara A8022J made of 100% polyester fiber was used as a nonwoven fabric in a double layer, and heat welded into a lattice pattern by ultrasonic bonding. When the properties of the resulting material were compared with those of the original nonwoven fabric, it was found that the strength was even greater than that of Example, and the air permeability was only slightly lower.

〔Effect of the invention〕

The material according to the present invention has the following properties: (1) ";
It does not stretch even when stretched, and is strong enough to fix the affected area.

(2) It has flexibility and fits well when worn.

(3) It has breathability comparable to non-woven fabric and will not swell during use.

(4) No rash will occur even when worn directly on the skin.

(5) Since it is thin and has a light Iv1 rating, it does not feel very comfortable when worn.

It has all the functions required as a core borrowed material, and can replace all conventional core borrowed materials.

[Brief explanation of drawings]

1 to 4 are plan views of different examples of the processed evaporator of the present invention, FIGS. 5 and 6 are explanatory diagrams of different examples of the method for manufacturing the material of the present invention, and FIG. FIG. 2 is a cross-sectional explanatory diagram of the material of the invention. 1.4,7,1.1...Nonwoven fabric, 2,5,8,11°17.22,24...Processed part, 3,6,9,12°2
3...Unprocessed part.

Claims (1)

[Claims] 1) A surgical trunk borrowed material characterized by being partially thermally welded over the entire surface of a nonwoven fabric made of thermoplastic fibers.