Patent US3646936A successfully refreshed from Google Patents.
US3646936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drainage pouch and method of making
Assignee: Individual
•
Filing: 1969-10-01
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Granted: 1972-03-07
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Expires: 1989-10-01
Abstract
Abstract The invention is characterized by a drainage pouch having on one side an adhesive adapted to cover an area which surrounds the drainage opening in the patient''s skin for sealing the pouch to the skin when applied for use, and a release material on the pouch in an area in coactive relation with the adhesive area, whereby in such coaction the adhesive area of one pouch will be covered by the release area. The invention is further characterized by the method of making the drainage pouch.
Inventors
- 👤 Arthur E Marsan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:24
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/445
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
A drainage pouch for use with colostomy and the like, comprising an elongated pouch body having spaced sidewalls, one such wall having a drainage opening adjacent to the upper end of the pouch and an adhesive applied to the outer side of said wall in an area surrounding said opening, a release agent applied to said outer sidewall in an area located beyond a medial portion of the pouch at the lower end portion of the pouch, the lower end portion of the pouch being folded at said medial portion to release agent area over and in contact with the adhesive area when the pouch is in nonuse condition before application to a patient, the release agent area being of scope sufficient to cover the adhesive area when so folded, whereby said folded release area portion can be pulled back to uncover the adhesive area and to position said release area portion at the lower end of the pouch whereby the pouch is in condition for application to a patient with the adhesive area sealing against the skin of the patient.
Claim 2
Dependent Claim
102 words
A stack of individual drainage pouches, each pouch having spaced sheets of film with one sheet having a drainage opening and an adhesive covering an area around said opening at the outer face of the pouch for direct application to the skin of the patient for sealing engagement therewith, and the other sheet having a release agent on its outer face opposite from said adhesive face and covering an area in cooperative relation with said adhesive area, the pouches being placed in face-to-face relationship in the stack with the release area of one pouch covering the adhesive area of an adjoining pouch.
Claim 3
Independent Claim
97 words
The method of making a drainage pouch consisting in applying to the face of a film web a coating of adhesive over an area sufficient for providing a seal around the drainage opening of a patient when the pouch is applied to the patient, applying to the face of a second film web a coating of release material over an area sufficient to cover said adhesive area, assembling said webs back to back with said adhesive and release areas on opposite sides of the combined webs, and severing the webs at spaced intervals to form individual pouches.
Claim 4
Dependent Claim
26 words
The method of making drainage pouches as set forth in claim 4, in which the adhesive and releasing coatings are applied continuously to the respective webs.
Claim 5
Independent Claim
106 words
The method of making drainage pouches including the steps of applying adhesive to one side of a first film web continuously over an area sufficient for sealing around a drainage opening in a patient, applying a release material to one side of a second film web continuously over a given area sufficient for covering said adhesive area, and causing said film webs to be brought together in a coacting relationship wherein said webs form opposite sides of a pouch and wherein the adhesive area and the release area are in coacting relation one with respect to the other on the outer opposite sides of the pouch.
Claim 6
Dependent Claim
43 words
The method of making drainage pouches set forth in claim 6, in which the webs are wound onto a roll with the adhesive are side of the first web positioned on the opposite side of the release area side of the second web.
Claim 7
Dependent Claim
61 words
The method of making drainage pouches set forth in claim 6, wherein a drainage opening is formed at spaced intervals through the adhesive area, the webs are brought into coacting relation one with respect to the other with the adhesive area on the side opposite from the release area, and severing the webs intermediate adjoining drainage openings to form individual pouches.
Claim 8
Dependent Claim
30 words
The method of making drainage pouches set forth in claim 6, wherein the peripheral edges of the webs are heat sealed to close the pouch except for the drainage opening.
Claim 9
Independent Claim
83 words
The method of making drainage pouches including the steps of applying adhesive continuously across one face of a film strip in a given area thereof, cutting a drainage opening through the adhesive area of the film strip at spaced intervals, respectively, positioning a second film strip in cooperative relation with the first mentioned film strip, severing both film strips at points intermediate said openings to provide opposed strips for forming individual pouches, and sealing the severed edges of each of the opposed strips.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |