KR20020050004A - Anti-decubitus cushion and manufacturing process which makes use of high frequency adhesive method - Google Patents

Anti-decubitus cushion and manufacturing process which makes use of high frequency adhesive method Download PDF

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Publication number
KR20020050004A
KR20020050004A KR1020000079333A KR20000079333A KR20020050004A KR 20020050004 A KR20020050004 A KR 20020050004A KR 1020000079333 A KR1020000079333 A KR 1020000079333A KR 20000079333 A KR20000079333 A KR 20000079333A KR 20020050004 A KR20020050004 A KR 20020050004A
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South Korea
Prior art keywords
air
cushion
injected
mold
air cell
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KR1020000079333A
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Korean (ko)
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KR100386373B1 (en
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김용철
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김용철
주식회사 다솔교역
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Priority to KR10-2000-0079333A priority Critical patent/KR100386373B1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05723—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with cut-outs or depressions in order to relieve the pressure on a part of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05715—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with modular blocks, or inserts, with layers of different material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05738—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with fluid-like particles, e.g. sand, mud, seeds, gel, beads

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

PURPOSE: A cushion for preventing a bedsore by using a high frequency connecting method and a method for manufacturing it are provided to produce the various products according to the size and a use and to actualize restoration of the injured part and to improve the durability by using PVC and polyurethane synthetic material. CONSTITUTION: In the cushion(1) for preventing the bedsore by using the high frequency connecting method and the method for manufacturing it, an upper board(2), inserting grooves(2a), air cells(3), the air cell inside, a lower board(4), an air passage(5), a connecting portion(6) and an air injecting portion(7) are included. A lot of air cells(3) store the air, which was injected through the air injecting portion(7) and it is possible to maintain the appropriate size and to absorb shock. The air cells(3) are inserted into the upper board(2) and many inserting grooves(2a) are formed on the upper board(2). The air passage(5) helps the air injected into the upper board(2) to flow into the inside of the air cells(3). The lower board(4) closes the injected air tightly.

Description

고주파 접착 방법을 이용한 욕창방지용 방석 및 제조방법{ANTI-DECUBITUS CUSHION AND MANUFACTURING PROCESS WHICH MAKES USE OF HIGH FREQUENCY ADHESIVE METHOD}Cushion for prevention of bedsores and manufacturing method using high frequency bonding method {ANTI-DECUBITUS CUSHION AND MANUFACTURING PROCESS WHICH MAKES USE OF HIGH FREQUENCY ADHESIVE METHOD}

본 발명은 욕창방지용 방석 및 매트에 관한 것으로서, 보다 상세하게 에어셀과 상측판 및 하측판을 각각 독립하여 가공하고 이를 고주파접합 방법을 이용하여 결합하여 만드는 욕창방지용방석에 관한 것이다.The present invention relates to a bed restraint cushion and mat, and more particularly to a bed restraint cushion made by independently processing the air cell, the upper plate and the lower plate and combining them using a high frequency bonding method.

종래에 사용해온 욕창방지용 방석은 도 5에서와 같이 다수의 공기봉우리(11)가 일체로 된 상측판(10)을 만들고 상기 상측판(10)과 동일한 크기의 하측판(12)과 접착하여 방석을 만들었다.The cushion for preventing bedsores used in the prior art is cushioned by making the upper side plate 10 in which a plurality of air peaks 11 are integrated as shown in FIG. 5 and adhering to the lower side plate 12 having the same size as the upper side plate 10. Made.

이를 위해 먼저 금형으로 틀을 만들고 그 위에 고무판을 적당한 온도에서 압착하여 성형하고 상기 성형된 상측판(10)을 하측판(12)과 접착시키고, 공기주입구 (13)를 이용하여 내부에 공기를 주입할 수 있도록 구성하였다.To this end, first, a mold is made of a mold, and a rubber plate is pressed on the mold at an appropriate temperature. Then, the molded upper plate 10 is bonded to the lower plate 12, and air is injected into the inside by using an air inlet 13. It was configured to be.

따라서, 다른 크기의 방석이나 매트를 만들 때마다 각각의 금형을 만들어야 하므로 생산단가가 높아져서 신체의 크기 정도에 따른 다양한 제품을 생산하기 어렵고, 이용자에게 경제적 부담을 가중시키는 주요 원인으로 부각되었다.Therefore, each mold must be made each time a different size of cushion or mat is made, which increases the production cost, making it difficult to produce various products according to the size of the body, and it has emerged as a major cause for increasing the economic burden on the user.

또한, 상측판(10)과 하측판(11)의 결합시 일반 접착제를 사용하여 접합하면 열에 약한 접착제의 특성상 접합부분이 떨어져 주입된 공기가 방출되는 경우가 빈번히 발생하였고, 고온의 프레스 압축방법을 사용하여 용융접합 하는 것은 합성고무, 천연고무, 실리콘 등으로 가공재료가 한정될 수 밖에 없었다.In addition, when the upper plate 10 and the lower plate 11 are bonded by using a general adhesive, the bonding portion is often separated and the air injected is often released due to the weak adhesive property of heat, and a high temperature press compression method is used. By melt bonding, processing materials were limited to synthetic rubber, natural rubber, silicon, and the like.

상기한 재료 중 실리콘은 2차 가공이 불가능하므로 주로 고무를 사용하는데 고무의 표면은 물질을 흡착하는 성질이 있어서 장기간 사용함에 따라 소독을 하여도 흡착된 각종의 병원균의 제거가 곤란하여 척수장애인이나 환자의 자연스러운 배뇨로 인한 세균번식으로 인한 자기감염과 전염의 문제를 유발하는 경우가 발생하였고, 고무의 특성상 소변의 주성분인 요산에 의해 물성이 변하게 되어 내구성이 떨어져 제품의 수명이 짧아지는 문제점이 있었다.Among the above materials, silicone is impossible to secondary processing, so mainly rubber is used. The surface of rubber has the property of adsorbing material, so it is difficult to remove various pathogens adsorbed even after disinfection with long-term use. Occurrence of self-infection and infection caused by bacterial propagation due to natural urination of the urine occurred. Due to the characteristics of rubber, the physical properties were changed by uric acid, which is the main component of urine.

그리고, 상측판(10)의 공기봉우리(11)는 장시간 사용으로 인하여 집중적인 하중을 받는 부위가 마모되어 훼손되는 경우와 부주의로 인하여 구멍이 나는 경우, 상측판(10)과 공기봉우리(11)가 일체로 되어 있어서 수리가 곤란하고 수리를 하여도 수리한 곳의 모양이 매끄럽지 않고, 일정시간이 경과하면 수리한 부분이 쉽게 훼손되는 문제점이 있었다.In addition, the air peak 11 of the upper plate 10 is worn and damaged due to wear and damage of the site subjected to intensive load due to long time, the upper plate 10 and the air peak 11 Has a problem that the repair is difficult and the shape of the repaired place is not smooth even after repairing, and the repaired portion is easily damaged after a certain time.

이에 본 발명은 이러한 종래의 문제점을 해결하기 위해 안출된 것으로, 다양한 크기의 제품을 생산하고 훼손된 부분의 신속하고 완벽한 수리를 위해 상측판과 에어셀, 하측판을 독립하여 구성한다.Therefore, the present invention has been made to solve the conventional problems, to produce products of various sizes and to configure the upper plate, the air cell, the lower plate independently for quick and complete repair of the damaged part.

일반적인 접착제 사용으로 인한 제품의 분리를 방지하고 내구성이 강하고 세균감염의 비율이 낮은 피브이씨 또는 피브이씨와 폴리우레탄을 혼합한 합성물질을 재료로 사용하여 가공하기 위해 고주파 접합방법을 이용하여 접합부위를 접착한 욕창방지용 방석을 제공함에 그 목적이 있다.Bonding using high frequency bonding method to prevent separation of products due to the use of general adhesives and to process using FBC or synthetic material mixed with FBC and polyurethane with high durability and low bacterial infection rate. The purpose is to provide a cushion for preventing bedsores bonded to the site.

도 1은 본 발명의 사시도.1 is a perspective view of the present invention.

도 2는 본 발명의 분리 사시도.2 is an exploded perspective view of the present invention.

도 3은 본 발명의 계략단면도.3 is a schematic cross-sectional view of the present invention.

도 4는 본 발명의 부분 확대단면도.4 is a partially enlarged cross-sectional view of the present invention.

도 5는 종래의 욕창방지용방석의 부분 단면도.5 is a partial cross-sectional view of a conventional bedsore prevention cushion.

***도면의 주요 부분에 대한 부호의 설명****** Description of the symbols for the main parts of the drawings ***

1 : 방석 2 : 상측판1: cushion 2: upper plate

2a : 결합 홈 3 : 에어셀(Air Cell)2a: Coupling Groove 3: Air Cell

3a : 에어셀 내부 4 : 하측판3a: inside air cell 4: bottom plate

5 : 공기통로 6,6a : 접합부5: air passage 6,6a: junction

7 : 공기주입구7: air inlet

상기의 목적을 실현하기 위한 본 발명의 구성은 다음과 같이 이루어져 있다.The configuration of the present invention for achieving the above object is made as follows.

척수장애인이나 장기간 누워서 생활하는 환자가 사용하는 욕창방지용방석에 있어서, 공기주입구(7)를 통하여 충분히 주입된 공기를 가두어 적절한 부피유지와완충작용이 가능한 다수의 에어셀(3)과; 상기 다수의 에어셀(3)이 삽입되어 일체로 접합되는 다수의 삽입홈(2a)이 형성된 상측판(2)과; 상기 다수의 에어셀(3)이 결합된 상측판(2)에 주입된 공기가 에어셀의 내부(3a)로 유입될 수 있게 공기통로(5)가 생기고 주입된 공기를 밀폐시킬 수 있도록 접합하는 하측판(4)으로 이루어진다.In the bed restraint cushion used by a spinal cord disabled person or a patient living for a long time lying, A plurality of air cells (3) capable of keeping proper volume and cushioning the air injected through the air inlet (7); An upper plate (2) formed with a plurality of insertion grooves (2a) into which the plurality of air cells (3) are inserted and joined together; The lower side plate joins to seal the injected air to create an air passage 5 so that the air injected into the upper side plate 2 to which the plurality of air cells 3 are combined can be introduced into the interior 3a of the air cell. It consists of (4).

이하 첨부된 도면을 참고로 하여 본 발명의 바람직한 일실시예로 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도시한 바와 같이 욕창방지용방석을 구성함에 있어서, 에어셀(3)은 사용자의 신체의 크기에 비례하여 하중의 분산이 용이하도록 다수로 구성하고, 공기주입구 (7)를 통하여 충분히 주입된 공기를 에어셀의 내부에(3a)에 충전되어 적절한 부피유지와 완충작용이 가능하도록 형성하고, 상측판(2)은 다수의 에어셀(3)이 삽입되어 접합될 수 있게 다수의 삽입홈(2a)이 있는 평면판으로 형성하고, 하측판(4)은 다수의 에어셀(3)이 결합된 상측판(2)과 같은 크기로 성형하여 두고, 고압에서 유도되는 고주파를 이용하여 에어셀(3)을 상측판의 삽입홈(2a)에 삽입한 다음 용융접합하고, 이를 상측판의 크기에 맞게 성형한 하측판(4)과 접합 할 때, 주입된 공기가 각 에어셀(3)로 유동이 가능하도록 에어셀(3)과 에어셀(3) 사이에 일정한 간격을 두고 접합되지 않게 하여 공기통로(5)가 형성되게 내부를 접합(6)하고, 내부에 충전된 공기를 밀폐시킬 수 있도록 상측판(2)과 하측판(4)의 테두리를 접합(6a)하여 만든다.As shown in the figure, the air cell 3 is composed of a plurality of air cells 3 so as to easily distribute the load in proportion to the size of the user's body, and the air sufficiently injected through the air inlet 7 of the air cell Filled in the inside (3a) to form a proper volume maintenance and buffering action, the upper plate (2) is a flat plate having a plurality of insertion grooves (2a) so that a plurality of air cells 3 can be inserted and bonded The lower plate 4 is formed in the same size as the upper plate 2 to which the plurality of air cells 3 are combined, and the air cell 3 is inserted into the upper plate by using a high frequency induced at high pressure. Inserted into (2a) and then melt-bonded and bonded to the lower plate 4 molded to the size of the upper plate, the air cell 3 and the air cell are allowed to flow into each air cell 3. (3) air at regular intervals between (5) is joined (6) inside to be formed, and makes the side plate 2 and the side plate (4) borders the joint (6a) of the so as to seal the charged air inside.

상기와 같이 구성함으로써 각각의 금형 제작없이 다양한 크기와 모양으로 생산이 가능하고 접합부분이 반영구적이며 훼손으로 인한 복구가 용이하다.By constructing as described above, it is possible to produce in various sizes and shapes without making each mold, and the joining part is semi-permanent and easy to recover due to damage.

각각의 에어셀(3)과 상측판(2) 및 하측판(4)은 피브이씨 100% 또는 피브이씨와 폴리우레탄을 알맞은 비율로 혼합한 합성물질을 재료로 하여 성형하면 내구성이 제고되고 세균감염의 문제를 최소화한다.Each of the air cells 3, the upper plate 2 and the lower plate 4 is made of 100% of FB seeds or a synthetic material mixed with FB seeds and polyurethane in an appropriate ratio to increase durability, and Minimize the problem of infection.

상기 에어셀(3)은 피브이씨 또는 피브이씨와 폴리우레탄을 혼합한 상온의 액상물에 약 200도∼300도로 가열된 에어셀 금형을 담근 다음 액상물질이 금형의 외부표면에 고형되면 이를 냉각시켜 성형하는 방법과; 내부가 에어셀 모양으로 형성된 금형에 상기 액상물을 주입하고 이를 중탕방식의 가열로에서 금형을 상기의 온도로 가열시켜 내부에 주입된 액상물질이 고형되면 나머지 액을 부어내고 고형된 것을 냉각시켜 성형하는 방법과; 내부가 에어셀 모양으로 형성되고 작은 주입구외에 밀폐된 금형을 상기의 온도로 가열하고 회전시키며 주입구를 통하여 금형의 내부에 액상물을 주입하면서 원심력을 이용하여 고형시켜 성형하는 방법으로 만든다.The air cell 3 soaks an air cell mold heated at about 200 degrees to 300 degrees in a liquid at room temperature mixed with fib C or fib C and polyurethane, and then cools the liquid material when it is solid on the outer surface of the mold. Molding method; The liquid is injected into a mold formed in an air cell shape, and the mold is heated to the above temperature in a heating bath of a bath. When the liquid substance injected therein solidifies, the remaining liquid is poured out and the solid is cooled and molded. Method; The inside of the mold is formed in the shape of an air cell, and the closed mold is heated and rotated to the above temperature, and the mold is formed by solidifying using a centrifugal force while injecting a liquid into the mold through the injection hole.

이상과 같이 본 발명은 사용자의 신체접촉부위의 하중을 분산시켜 혈액순환을 촉진하고, 통풍이 원활하여 접촉피부의 습기를 최소화시키므로 척수장애인 기타 환자에게 생기는 욕창을 방지하고, 신체의 크기와 다양한 용도에 따른 형태에 맞게 생산함에 있어 각각의 금형을 만들지 않고서도 크기와 용도에 맞게 생산할 수 있으므로 생산자는 생산비를 절감하고, 사용자는 자신의 필요에 맞는 제품을 주문하여 사용할 수 있어 척수장애인의 생활과 환자의 치료에 편리를 도모할 수 있으며, 재료의 특성으로 인하여 내구성이 제고되며, 장시간 사용으로 인한 세균감염의 비율이 낮아지고, 접합부분이 반영구적으로 보존되고, 손상된 부위의 복구가 용이함으로 사용자에게는 현저한 비용절감효과가 있다.As described above, the present invention promotes blood circulation by distributing the load on the user's body contact area, and minimizes the moisture of the contact skin due to the smooth ventilation, thereby preventing bedsores occurring in other patients with spinal cord disorder, body size and various uses. In the production according to the shape according to the production can be produced according to the size and use without making each mold, the producer can reduce the production cost, the user can order and use the product that meets their needs, so that the life of the spinal cord disabled and patients It can be convenient for the treatment, and the durability is improved due to the characteristics of the material, the rate of bacterial infection is reduced due to long time use, semi-permanent preservation of the junction part, and recovery of the damaged part is easy for the user. There is a saving effect.

Claims (6)

척수장애인이나 장기간 누워서 생활하는 환자가 사용하는 욕창방지용방석에 있어서, 공기주입구를 통하여 충분히 주입된 공기를 가두어 적절한 부피유지와 완충작용이 가능한 다수의 에어셀과;A bed restraint cushion for use by a spinal cord disabled person or a patient who has been lying for a long time, comprising: a plurality of air cells capable of appropriately maintaining volume and buffering air by confining air sufficiently injected through an air inlet; 상기 다수의 에어셀이 삽입되어 일체로 접합되는 다수의 삽입홈이 있는 상측판과;An upper plate having a plurality of insertion grooves into which the plurality of air cells are inserted and joined together; 상기 다수의 에어셀이 결합된 상측판에 주입된 공기가 에어셀의 내부로 운반될 수 있게 공기통로가 생기고 주입된 공기를 밀폐시킬 수 있도록 접합하는 하측판으로 이루어지는 것을 특징으로 하는 욕창방지용 방석.Cushion for preventing bedsores, characterized in that the lower plate is bonded to the air passage is formed so that the air injected into the upper plate coupled to the plurality of air cells can be carried into the inside of the air cell to seal the injected air. 청구항 1에 있어서, 상기 에어셀, 상측판, 및 하측판의 재료가 피브이씨 또는 피브이씨와 폴리우레탄 합성물질로 된 것을 특징으로 하는 욕창방지용 방석.The cushion for preventing bedsores according to claim 1, wherein the materials of the air cell, the upper plate, and the lower plate are made of FV or FV and a polyurethane synthetic material. 에어셀과 상측판을 접합하고 이를 하측판과 결합할 때 에어셀의 내부에 공기가 고루 주입될 수 있도록 공기통로를 형성시키며, 공기를 밀폐할 수 있게 고압에서 유도되는 고주파를 이용하여 접착하는 것을 특징으로 하는 욕창방지용방석의 제조방법.When the air cell and the upper plate are bonded and combined with the lower plate, the air passage is formed so that the air can be evenly injected into the inside of the air cell, and the air is sealed using high frequency induced high pressure to seal the air. Method for the preparation of bedsores prevention cushion. 청구항 3에 있어서, 에어셀은 상온의 피브이씨와 폴리우레탄을 혼합한 합성액에 일정한 온도로 가열된 금형을 담근 다음 액상물질이 금형표면에 고형되면 이를 냉각시켜 형성하는 것을 특징으로 하는 욕창방지용방석의 제조방법.The cushion for preventing bedsores according to claim 3, wherein the air cell is formed by immersing a mold heated to a predetermined temperature in a synthetic solution of a fiber and polyurethane at room temperature, and then cooling the liquid material when it is solid on the mold surface. Manufacturing method. 청구항 3에 있어서, 에어셀은 금형의 내부에 상기 합성액을 주입하고 이를 중탕방식의 가열로에서 일정한 온도로 금형을 가열시켜 내부에 주입된 액상물질이 고형되면 나머지 액을 부어내고 고형된 것을 냉각시켜 형성하는 것을 특징으로 하는 욕창방지용방석의 제조방법.The method of claim 3, wherein the air cell injects the synthetic liquid into the mold and heats the mold at a constant temperature in a heating bath of a bath so that the remaining liquid is poured and cooled after the solid is injected. Method for producing bedsores prevention cushion, characterized in that the formation. 청구항 3에 있어서, 에어셀은 일정한 온도로 가열된 금형을 회전시키며 금형의 내부에 합성액을 주입하면서 원심력을 이용하여 고형시켜 형성하는 방법을 특징으로 하는 에어셀의 제조방법.The method of manufacturing an air cell according to claim 3, wherein the air cell is formed by rotating the mold heated to a constant temperature and solidifying the centrifugal force while injecting a compound solution into the mold.
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Cited By (8)

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KR100538402B1 (en) * 2001-10-24 2006-01-10 재단법인 산재의료관리원 An air-controling device of a cashion for preventing a bedsore
KR100585239B1 (en) * 2004-06-08 2006-05-30 김경일 Method for molding continuously a cushion prevent bedsore
KR100891034B1 (en) * 2007-10-05 2009-03-31 주식회사 영원메디칼 Manufacturing method of mat using mold for mat
WO2009125969A2 (en) * 2008-04-10 2009-10-15 Lee Sun Goo Silicon cushion for preventing bedsore
KR101044757B1 (en) * 2004-12-28 2011-06-27 주식회사 포스코 Prevention device for scattering insulation coating solvent in three roll type coating roll
KR101044755B1 (en) * 2004-12-21 2011-06-27 주식회사 포스코 Prevention device for scattering insulation coating solvent in three roll type coating roll
CN110074595A (en) * 2019-04-24 2019-08-02 深圳市中金鑫科技有限公司 The manufacturing method of heat insulation seat cushion and heat insulation seat cushion
KR102284088B1 (en) * 2020-07-24 2021-07-30 주식회사 리버텍 Mold for manufacturing bedsore prevention cushion

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KR100538402B1 (en) * 2001-10-24 2006-01-10 재단법인 산재의료관리원 An air-controling device of a cashion for preventing a bedsore
KR100585239B1 (en) * 2004-06-08 2006-05-30 김경일 Method for molding continuously a cushion prevent bedsore
KR101044755B1 (en) * 2004-12-21 2011-06-27 주식회사 포스코 Prevention device for scattering insulation coating solvent in three roll type coating roll
KR101044757B1 (en) * 2004-12-28 2011-06-27 주식회사 포스코 Prevention device for scattering insulation coating solvent in three roll type coating roll
KR100891034B1 (en) * 2007-10-05 2009-03-31 주식회사 영원메디칼 Manufacturing method of mat using mold for mat
WO2009125969A2 (en) * 2008-04-10 2009-10-15 Lee Sun Goo Silicon cushion for preventing bedsore
WO2009125969A3 (en) * 2008-04-10 2010-01-28 Lee Sun Goo Silicon cushion for preventing bedsore
CN110074595A (en) * 2019-04-24 2019-08-02 深圳市中金鑫科技有限公司 The manufacturing method of heat insulation seat cushion and heat insulation seat cushion
KR102284088B1 (en) * 2020-07-24 2021-07-30 주식회사 리버텍 Mold for manufacturing bedsore prevention cushion

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