US3604426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying semisolid bacteriostatic pads to urinary catheters
Assignee: Elliot Laboratories Inc
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Filing: 1969-05-06
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Granted: 1971-09-14
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Expires: 1989-05-06
Abstract
Abstract Wrapping around the shaft of a body catheter a bacteriostatic pad made of a nonwoven fabric impregnated with a bacteriostatic agent incorporated in a semisolid base to form a protective bacteria barrier around the catheter shaft at its entry into the urinary meatus. The semisolid base holes the bacteriostatic agent in intimate contact with the catheter shaft and the meatus surrounding the catheter shaft to provide an effective bacteriatight seal against entry of bacteria between the shaft and the meatus. Thus, it prevents the migration of bacteria along the catheter shaft into the body.
Inventors
- 👤 Richard E Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:18
CPC Classifications
A; A61; A61M; A61M25/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
In the management of urethral catheterization to prevent migration of pathogenic bacteria along the catheter shaft into the body, the method which comprises applying around the shaft of the catheter in intimate contact with and covering the portion of the outside of the body immediately surrounding the catheter where it enters the body and in intimate contact with the catheter shaft, a separate flexible porous fibrous pad impregnated with an expressible quantity of a semisolid material containing a bacteriostatic agent, compressing said pad to express a portion Of said material and agent onto said shaft and onto said surrounding body portion, whereby said pad and said material and agent close the space between the catheter and the body to form a protective bacteria barrier, and leaving the pad so applied during a substantial time interval while said catheter is in the body.
Claim 2
Dependent Claim
142 words
In the management of urethral catheterization to prevent migration of pathogenic bacteria along the catheter shaft into the body, the method which comprises applying around the shaft of the catheter in intimate contact with and covering the portion of the outside of the body immediately surrounding the catheter where it enters the body and in intimate contact with the catheter shaft, a separate flexible porous fibrous pad impregnated with an expressible quantity of a semisolid material containing a bacteriostatic agent, compressing said pad to express a portion Of said material and agent onto said shaft and onto said surrounding body portion, whereby said pad and said material and agent close the space between the catheter and the body to form a protective bacteria barrier, and leaving the pad so applied during a substantial time interval while said catheter is in the body.
Claim 3
Dependent Claim
41 words
In the management of urethral catheterization according to claim 1, the method in which the material is a semisolid lubricating jelly, and which includes forming a seal between the pad and the body portion and between said pad and said shaft.
Claim 4
Dependent Claim
34 words
In the management of urethral catheterization according to claim 2, the method in which the bacteriostatic agent is selected from the group consisting of o-phenylphenol, p-tert-amylphenol, hexachlorophene, betadine, polymyxin, neomycin, chlorhexadine and chlorine dioxide.
Claim 5
Dependent Claim
22 words
In the management of urethral catheterization according to claim 2, the method which includes wrapping the pad tightly around the catheter shaft.
References Cited (Backward Citations)
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US2898913A
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US3030960A
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |