Patent US2625593A successfully refreshed from Google Patents.
Patent US4329992A successfully refreshed from Google Patents.
US4329992A
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Medical apparatus for parenteral liquids
Assignee: Hoechst AG
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Filing: 1980-04-08
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Granted: 1982-05-18
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Expires: 2000-04-08
Abstract
Abstract Medical apparatus for parenteral liquids wherein at least the surfaces coming into contact with said liquids consist of or contain a chlorinated polyolefin as specified and additionally contain a glycerol ester of an aliphatic fatty acid. The apparatus is characterized by a very good blood tolerance.
Inventors
- 👤 Udo Becker
- 👤 Wolfram Busch
- 👤 Johann P. Fischer
- 👤 Werner Sommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08L; C08L23/00; C08L23/26; C08L23/28; C08L33/00; C08L33/04; C08L33/06; A; A61; A61J; A61J1/00; A61J1/14; A61J1/1468; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
An apparatus for containing a parenteral liquid which comprises a suitable base or support material having a surface layer affixed thereto wherein at least that portion of the surface layer coming into contact with the parenteral liquid is a polymer comprising at least 50 parts by weight of a chloropolyolefin having 15% to 45% by weight chlorine and an average molecular weight in the range of 20,000 to 2,000,000 and 0.01 to 10 parts by weight of glycerol ester of aliphatic fatty acids per 100 parts by weight of the polymer whereby said apparatus exhibits acceptable blood tolerance and non-thrombogenicity with respect to the contained parenteral liquid.
Claim 2
Independent Claim
107 words
An apparatus for containing a parenteral liquid which comprises a suitable base or support material having a surface layer affixed thereto wherein at least that portion of the surface layer coming into contact with the parenteral liquid is a polymer comprising at least 50 parts by weight of a chloropolyolefin having 15% to 45% by weight chlorine and an average molecular weight in the range of 20,000 to 2,000,000 and 0.01 to 10 parts by weight of glycerol ester of aliphatic fatty acids per 100 parts by weight of the polymer whereby said apparatus exhibits acceptable blood tolerance and non-thrombogenicity with respect to the contained parenteral liquid.
Claim 3
Dependent Claim
56 words
The apparatus of claim 1 wherein said surface layer comprises 100 parts by weight of chlorinated polyethylene having a chlorine content of 34% by weight, 2 parts by weight of a stabilizer consiting of calcium stearate and zinc stearate, 0.15 parts by weight of polyethylene wax lubricant and 5 parts by weight of epoxidized soybean oil.
Claim 4
Dependent Claim
18 words
The apparatus of claim 2 wherein said surface layer has a thickness of 1 μm to 5 μm.
Claim 5
Dependent Claim
17 words
The apparatus of claim 2 wherein the chlorinated polyethylene has a residual crystallinity of 0 to 15%.
Claim 6
Dependent Claim
24 words
The apparatus of claim 1 wherein the glycerol ester of aliphatic fatty acids is a natural fat or oil or the oxidation products thereof.
Claim 7
Dependent Claim
17 words
The apparatus of claim 1 wherein the glycerol ester of aliphatic fatty acids is epoxidized soybean oil.
Claim 8
Dependent Claim
12 words
The apparatus of claim 1 wherein said apparatus has a tubular configuration.
Claim 9
Dependent Claim
16 words
The apparatus of claim 1 wherein said base or support material is comprised of said polymer.
Claim 10
Independent Claim
89 words
A method for containing a parenteral liquid in a suitable apparatus which comprises coating that portion of said apparatus coming into contact with the parenteral liquid with a polymer comprising at least 50 parts by weight of a chloropolyolefin having 15% to 45% by weight chlorine and an average molecular weight in the range of 20,000 to 2,000,000 and 0.01 to 10 parts by weight of glycerol ester of aliphatic fatty acids per 100 parts by weight of the polymer whereby said apparatus exhibits acceptable blood tolerance and non-thrombogenicity.
Claim 11
Independent Claim
89 words
A method for containing a parenteral liquid in a suitable apparatus which comprises coating that portion of said apparatus coming into contact with the parenteral liquid with a polymer comprising at least 50 parts by weight of a chloropolyolefin having 15% to 45% by weight chlorine and an average molecular weight in the range of 20,000 to 2,000,000 and 0.01 to 10 parts by weight of glycerol ester of aliphatic fatty acids per 100 parts by weight of the polymer whereby said apparatus exhibits acceptable blood tolerance and non-thrombogenicity.
References Cited (Backward Citations)
US3697311A
Cited
US4132857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |