Patent US3738359A successfully refreshed from Google Patents.
US3738359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-slip instrument pad
Assignee: Johnson and Johnson
•
Filing: 1971-07-19
•
Granted: 1973-06-12
•
Expires: 1991-07-19
Abstract
Abstract A non-slip instrument pad is disclosed, which is composed of a synthetic polymer foam material applied to a substrate. The foam material is highly absorbent, has a high coefficient of friction and a low surface resistivity. The polymers used in making the foam are either styrene butadiene polymers or carboxylated styrene butadiene polymers. The foamed polymer contains an antistatic agent.
Inventors
- 👤 J Lindquist
- 👤 J Sommers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:45
CPC Classifications
A; A61; A61B; A61B46/00; A61B46/20; A61B46/23; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
18 words
The instrument pad of claim 1 in which the foam is adhered to an open mesh fibrous substrate.
Claim 2
Dependent Claim
17 words
The instrument pad of claim 2 in which there is an impervious film underlying the fibrous substrate.
Claim 3
Dependent Claim
42 words
The instrument pad of claim 3 in which the foam surface is a discontinuous series of circular mounds on the substrate, said circular mounds covering between 10 and 25 percent of the total surface area of the upper surface of said pad.
Claim 4
Dependent Claim
15 words
The instrument pad of claim 3 in which the foam surface is a continuous sheet.
Claim 5
Dependent Claim
115 words
A surgical drape having secured to the upper surface thereon an instrument receiving pad which is capable of holding surgical instruments placed thereon and which is highly absorbent, has a coefficient of friction greater than 1, and has a surface resistivity of less than 5 X 1011 ohms/unit square, said pad comprising a surface of a foam formed from a polymer selected from the group consisting of polymers of butadiene and styrene and polymers of butadiene, styrene and an ethylenically unsaturated carboxylic acid, said sheet containing from 0.05 to 0.25 percent, based on the weight of the foam, of an antistatic agent, said antistatic agent comprising the reaction product of a polyalkoxylated polyamine with epichlorohydrine.
Claim 6
Dependent Claim
19 words
The surgical drape of claim 6 in which the foam surface is adhered to an open mesh fibrous substrate.
Claim 7
Dependent Claim
17 words
The instrument pad of claim 6 in which there is an impervious film underlying the fibrous substrate.
Claim 8
Dependent Claim
46 words
The surgical drape of claim 8 in which the foam surface of said instrument pad is a discontinuous series of circular mounds on the substrate, said circular mounds covering between 10 and 25 percent of the total surface area of the upper surface of said pad.
Claim 9
Dependent Claim
15 words
The surgical drape of claim 8 in which the foam surface is a continuous sheet.
Claim 10
Dependent Claim
61 words
The surgical drape of claim 8 in which the instrument pad is secured to the drape with an adhesive which is applied inward of the outer edges of said pad, and in which said pad has apertures through the pad which lie between the point where the pad is adhesively secured to said drapes and the outer edge of said pad.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |