US4143423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical lubricants
Assignee: Individual
•
Filing: 1977-10-25
•
Granted: 1979-03-13
•
Expires: 1997-10-25
Abstract
Abstract Plastic, natural or synthetic rubber surgical appliances such as gloves, condoms, drains, catheters and tubing are coated with a nontoxic chemical formulation to inhibit sticking during storage and to ease the installation of the device. The coating disclosed herein is a water soluble nontoxic chemical compound that incorporates Na (sodium) or K (potassium) in varying chemical combinations with carbonates, acetates, bicarbonates, acetate trihydrates and citrate dihydrate.
Inventors
- 👤 Jack J. Sternlieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:22
CPC Classifications
C; C10; C10M; C10M103/00; C10M103/06; A; A61; A61B; A61B42/00; A61F; A61F6/00; A61F6/02; A61F6/04; A61L; A61L29/00; A61L29/08; A61L31/00; A61L31/08; C10M105/00; C10M105/08; C10M105/22; C10M2201/00; C10M2201/06; C10M2201/062; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/129; C10M2207/22; C10N; C10N2010/00; C10N2010/02; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
123 words
The process of applying to plastic, natural or synthetic rubber surgical devices a nontoxic lubricating coating which does not cause adverse reactions in animals or human patients, which eases installation, and which prevents self-adhesion in storage of said devices, which comprises: coating the surfaces of said devices with a dry coating which consists of a chemical compound of one alkali metal selected from the group consisting of sodium (Na) and potassium (K) in chemical combination with a radical selected from the group consisting of carbonate (CO 3 ), bicarbonate (HCO 3 ), acetate (C 2 H 3 O 2 ), acetate trihydrate (C 2 H 3 O 2 .3H 2 O), and citrate dihydrate (C 6 H 5 O 7 .2H 2 O).
Claim 2
Dependent Claim
123 words
The process of applying to plastic, natural or synthetic rubber surgical devices a nontoxic lubricating coating which does not cause adverse reactions in animals or human patients, which eases installation, and which prevents self-adhesion in storage of said devices, which comprises: coating the surfaces of said devices with a dry coating which consists of a chemical compound of one alkali metal selected from the group consisting of sodium (Na) and potassium (K) in chemical combination with a radical selected from the group consisting of carbonate (CO 3 ), bicarbonate (HCO 3 ), acetate (C 2 H 3 O 2 ), acetate trihydrate (C 2 H 3 O 2 .3H 2 O), and citrate dihydrate (C 6 H 5 O 7 .2H 2 O).
Claim 3
Dependent Claim
16 words
The process of claim 1 wherein the coating is sodium carbonate (Na 2 CO 3 ).
Claim 4
Dependent Claim
14 words
The process of claim 1 wherein the coating is sodium bicarbonate (NaHCO 3 ).
Claim 5
Dependent Claim
23 words
The process of claim 1 wherein the coating is sodium citrate, dihydrate (Na 3 C 6 H 5 O 7 .2H 2 O).
Claim 6
Dependent Claim
18 words
The process of claim 1 wherein the coating is sodium acetate (NaC 2 H 3 O 2 ).
Claim 7
Dependent Claim
21 words
The process of claim 1 wherein the coating is sodium acetate, trihydrate (NaC 2 H 3 O 2 .3H 2 O).
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein the coating is potassium carbonate (K 2 CO 3 ).
Claim 9
Dependent Claim
14 words
The process of claim 1 wherein the coating is potassium bicarbonate (KHCO 3 ).
Claim 10
Dependent Claim
23 words
The process of claim 1 wherein the coating is potassium citrate, dihydrate (K 3 C 6 H 5 O 7 .2H 2 O).
Claim 11
Dependent Claim
18 words
The process of claim 1 wherein the coating is potassium acetate (KC 2 H 3 O 2 ).
Claim 12
Dependent Claim
21 words
The process of claim 1 wherein the coating is potassium acetate, trihydrate (KC 2 H 3 O 2 .3H 2 O).
Claim 13
Dependent Claim
99 words
Plastic, natural or synthetic rubber surgical devices whose surfaces are coated with a dry layer of a chemical compound of one alkali metal selected from the group consisting of sodium (Na) and potassium (K) in chemical combination with a radical selected from the group consisting of carbonate (CO 3 ), bicarbonate (HCO 3 ), acetate (C 2 H 3 O 2 ), acetate trihydrate (C 2 H 3 O 2 .3H 2 O), and citrate dihydrate (C 6 H 5 O 7 .2H 2 O) as a nontoxic lubricating coating to ease installation and to prevent self-adhesion in storage.
Claim 14
Dependent Claim
99 words
Plastic, natural or synthetic rubber surgical devices whose surfaces are coated with a dry layer of a chemical compound of one alkali metal selected from the group consisting of sodium (Na) and potassium (K) in chemical combination with a radical selected from the group consisting of carbonate (CO 3 ), bicarbonate (HCO 3 ), acetate (C 2 H 3 O 2 ), acetate trihydrate (C 2 H 3 O 2 .3H 2 O), and citrate dihydrate (C 6 H 5 O 7 .2H 2 O) as a nontoxic lubricating coating to ease installation and to prevent self-adhesion in storage.
Claim 15
Dependent Claim
18 words
The coated surgical devices of claim 12 wherein the coating is sodium carbonate (Na 2 CO 3 ).
Claim 16
Dependent Claim
16 words
The coated surgical devices of claim 12 wherein the coating is sodium bicarbonate (NaHCO 3 ).
Claim 17
Dependent Claim
25 words
The coated surgical devices of claim 12 wherein the coating is sodium citrate, dihydrate (Na 3 C 6 H 5 O 7 .2H 2 O).
Claim 18
Dependent Claim
20 words
The coated surgical devices of claim 12 wherein the coating is sodium acetate (NaC 2 H 3 O 2 ).
Claim 19
Dependent Claim
23 words
The coated surgical devices of claim 12 wherein the coating is sodium acetate, trihydrate (NaC 2 H 3 O 2 .3H 2 O).
Claim 20
Dependent Claim
18 words
The coated surgical devices of claim 12 wherein the coating is potassium carbonate (K 2 CO 3 ).
Claim 21
Dependent Claim
16 words
The coated surgical devices of claim 12 wherein the coating is potassium bicarbonate (KHCO 3 ).
Claim 22
Dependent Claim
25 words
The coated surgical devices of claim 12 wherein the coating is potassium citrate, dihydrate (K 3 C 6 H 5 O 7 .2H 2 O).
Claim 23
Dependent Claim
20 words
The coated surgical devices of claim 12 wherein the coating is potassium acetate (KC 2 H 3 O 2 ).
Claim 24
Dependent Claim
23 words
The coated surgical devices of claim 12 wherein the coating is potassium acetate, trihydrate (KC 2 H 3 O 2 .3H 2 O).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |