Patent US4705709A successfully refreshed from Google Patents.
US4705709A
Expired / Lapsed
US
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Lubricant composition, method of coating and a coated intubation device
Assignee: Covidien AG
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Filing: 1985-09-25
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Granted: 1987-11-10
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Expires: 2005-09-25
Abstract
Abstract The present invention is a lubricant coating composed of hydrophylic polymer and surfactant for intubation devices such as nasogastric tubes. The coating is strong and attains sufficient lubricity upon contact with water in less than about 5 minutes and preferably less than about 5 to 10 seconds to be used in intubation procedures.
Inventors
- 👤 Vincent L. Vailancourt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:58
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/14; A61J; A61J15/00; A61J15/0003; A61J15/0007; A61L29/08; A61L29/085; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139; Y10T428/1393
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
72 words
An intubation device having a body and a coating on at least a portion of said body, said coating including an effective amount of a hydrophilic polymer and a compound selected from the group consisting of nonionic and amphoteric surfactants, said compound being present in an amount effective to reduce the coefficient of friction of said coating to less than about 0.6 upon contact with water in less than about 5 minutes.
Claim 2
Dependent Claim
72 words
An intubation device having a body and a coating on at least a portion of said body, said coating including an effective amount of a hydrophilic polymer and a compound selected from the group consisting of nonionic and amphoteric surfactants, said compound being present in an amount effective to reduce the coefficient of friction of said coating to less than about 0.6 upon contact with water in less than about 5 minutes.
Claim 3
Dependent Claim
26 words
The intubation device of claim 1 wherein the coefficient of friction is reduced to less than about 0.2 in less than about 5 to 10 seconds.
Claim 4
Dependent Claim
13 words
The intubation device of claim 2 wherein said polymer is a hydrophilic polyurethane.
Claim 5
Dependent Claim
32 words
The intubation device of claim 3 wherein said polyurethane is hydroxy-terminated and comprises the reaction product of: (A) polyethylene glycol, and (B) methylene bis (4-cyclohexylisocyanate); and said compound is a nonionic surfactant.
Claim 6
Dependent Claim
32 words
The intubation device recited in claim 4 wherein said polyurethane has an average molecular weight of about 7500 and said polyethylene glycol has an average molecular weight of about 1890 to 1900.
Claim 7
Dependent Claim
12 words
The intubation device of claim 5 wherein said surfactant is octylphenoxy polyethoxyethanol.
Claim 8
Dependent Claim
14 words
The intubation device in claim 5 wherein said surfactant is a linear alkyl sulfonate.
Claim 9
Dependent Claim
12 words
The intubation device of claim 5 wherein said surfactant is an alkylphenylhydroxypolyoxyethylene.
Claim 10
Dependent Claim
25 words
The intubation device of claim 5 wherein said surfactant is a nonylphenol polyethylene glycol ether having an average molecular weight of about 350 to 2000.
Claim 11
Dependent Claim
14 words
The intubation device recited in claim 1 wherein said body comprises a nasogastric tube.
Claim 12
Dependent Claim
14 words
The intubation device recited in claim 6 wherein said body comprises a nasogastric tube.
Claim 13
Dependent Claim
14 words
The intubation device recited in claim 7 wherein said body comprises a nasogastric tube.
Claim 14
Dependent Claim
14 words
The intubation device recited in claim 4 wherein said body comprises a nasogastric tube.
Claim 15
Dependent Claim
14 words
The intubation device recited in claim 5 wherein said body comprises a nasogastric tube.
Claim 16
Independent Claim
95 words
A method for coating an intubation device with a lubricating composition comprising the steps of: forming a hydrophilic polymer solution including a compound selected from the group consisting of nonionic acid amphoteric surfactants wherein said compound is present in an amount effective to reduce the coefficient of friction of a dry surface of the composition to less than about 0.6 in less than about 5 minutes upon contact with water; and applying the solution to at least a portion of an intubation device to form a first coating; and subsequently drying and curing the coating.
Claim 17
Independent Claim
95 words
A method for coating an intubation device with a lubricating composition comprising the steps of: forming a hydrophilic polymer solution including a compound selected from the group consisting of nonionic acid amphoteric surfactants wherein said compound is present in an amount effective to reduce the coefficient of friction of a dry surface of the composition to less than about 0.6 in less than about 5 minutes upon contact with water; and applying the solution to at least a portion of an intubation device to form a first coating; and subsequently drying and curing the coating.
Claim 18
Dependent Claim
30 words
The method of claim 15 further comprising the step of applying a coating of hydrophilic polymer on said portion of the intubation device prior to applying said first coating thereover.
Claim 19
Dependent Claim
31 words
The method of claim 15 wherein said polyurethane is hydroxy-terminated and comprises the reaction product of: (A) polyethylene glycol, and (B) methylene bis (4-cyclohexylisocyanate); and said compound is a nonionic surfactant.
Claim 20
Dependent Claim
30 words
The method of claim 17 wherein said polyurethane has an average molecular weight of about 7500 and said polyethylene glycol has an average molecular weight of about 1890 to 1900.
Claim 21
Dependent Claim
11 words
The method of claim 17 wherein said surfactant is octylphenoxy polyethoxyethanol.
Claim 22
Dependent Claim
13 words
The method of claim 17 wherein said surfactant is a linear alkyl sulfonate.
Claim 23
Dependent Claim
11 words
The method of claim 17 wherein said surfactant is an alkylphenylhydroxypolyoxyethylene.
Claim 24
Dependent Claim
24 words
The method of claim 17 wherein said surfactant is a nonylphenol polyethylene glycol ether having an average molecular weight of about 350 to 2000.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-09 | 1991-05-11 | 1991-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-09 | 1995-05-11 | 1995-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-09 | 1999-05-11 | 1999-11-10 | $7700.00 | Window Closed / Lapsed |