Multi-layered plastic body for medical applications
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29D-022/00
B29D-023/00
B32B-001/08
B32B-001/00
출원번호
US-0798971
(2004-03-11)
등록번호
US-7374802
(2008-05-20)
우선권정보
DE-101 44 892(2001-09-12)
발명자
/ 주소
Zihlmann,Rudolf
출원인 / 주소
Disetronic Licensing AG
대리인 / 주소
Bruhn,David
인용정보
피인용 횟수 :
7인용 특허 :
8
초록▼
A multi-layered plastic body for containing, storing or conducting a medical, diagnostic, pharmaceutical, cosmetic or other product, the plastic body including a first layer made of a stress fracture resistant plastic material, and at least a second layer adjacent to the first layer and made of a pl
A multi-layered plastic body for containing, storing or conducting a medical, diagnostic, pharmaceutical, cosmetic or other product, the plastic body including a first layer made of a stress fracture resistant plastic material, and at least a second layer adjacent to the first layer and made of a plastic material exhibiting a lower resistance to stress fractures than the first plastic material. The invention encompasses a suitable method of making the body.
대표청구항▼
The invention claimed is: 1. A multi-layered plastic body for storing or conducting a medical, diagnostic, pharmaceutical or/and cosmetic product, said plastic body comprising: a) a first layer made of a stress fracture resistant plastic material, wherein the first layer is translucent, and wherein
The invention claimed is: 1. A multi-layered plastic body for storing or conducting a medical, diagnostic, pharmaceutical or/and cosmetic product, said plastic body comprising: a) a first layer made of a stress fracture resistant plastic material, wherein the first layer is translucent, and wherein the first layer forms an outer layer of the plastic body, thereby forming a skin; and b) at least a second layer, connected to said first layer, and made of a plastic material which exhibits a lower resistance to stress fractures than said first plastic material, wherein the stress fracture resistant plastic material of the first layer is semi-crystalline, wherein said first layer is thinner than the second layer, wherein the plastic material of the second layer exhibits a combination of a greater transparency to light from the visible spectrum, a greater mechanical stability, a greater dimensional stability and a lower permeability than the stress fracture resistant plastic material of the first layer, and wherein the plastic body is at least part of a container, the container being one of a group comprising ampoules, catheters or components of a fluid-handling system. 2. The plastic body as set forth in claim 1, wherein the plastic body is generally cylindrical, defines a hollow space, and comprises at least one opening at each of two opposing ends, said openings being provided in general axial alignment. 3. The plastic body as set forth in claim 1, wherein at least the first layer encloses a hollow space formed by the plastic body. 4. The plastic body as set forth in claim 1, wherein the stress fracture resistant plastic material has a crystalline proportion of at least 30% by weight. 5. The plastic body as set forth in claim 1, wherein the second layer is arranged between the first layer and another layer made of one of the same or another stress fracture resistant plastic material. 6. The plastic body as set forth in claim 1, wherein the first layer is connected to the second layer in a material lock. 7. The plastic body as set forth in claim 1, wherein the first layer is connected to the second layer in a positive lock. 8. The plastic body as set forth in claim 1, wherein the plastic body is a composite injection molded part. 9. The plastic body as set forth in claim 1, wherein the plastic body is a plastic injection molded part which is molded by sequentially combining multiple-component injection molding and composite injection molding. 10. The plastic body as set forth in claim 1, wherein the semi-crystalline stress fracture resistant plastic material is acetal, fluorocarbon, nylon, polyethylene, polypropylene, polybutylene, PETP, PBT, PPS, PEEK, EVA, polymethylpentene or combinations thereof. 11. The plastic body as set forth in claim 1, wherein the plastic body comprises at least one opening sealed by a septum. 12. The plastic body as set forth in claim 11, wherein said septum either forms said second layer or has been cast-in with the first layer in an injection molding method. 13. The plastic body as set forth in claim 1, wherein the plastic body is a multiple-component injection molded part. 14. The plastic body as set forth in claim 13, wherein the plastic body is molded by co-injection multiple-component injection molding.
Fanselow Dan L. (White Bear Lake MN) Hammar Walton J. (St. Paul MN) Ko John H. (Woodbury MN) Margl James C. (Oakdale MN) Wilfong Debra L. (Lake Elmo MN), Flexible, chlorine free multilayered tubing.
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