US3595241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insured internal flow medicosurgical tubes
Assignee: Individual
•
Filing: 1969-02-19
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Granted: 1971-07-27
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Expires: 1989-02-19
Abstract
Abstract Medicosurgical tubes have a swab member positioned inside the tube so constructed or arranged that it may be pulled through the tube and out the proximal end. In such a catheter, the lumen is positively protected throughout the tube length against the possibility of blood clots or other matter preventing liquid flow through the tube following the tube insertion procedure.
Inventors
- 👤 David S Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:22
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M2025/0019; A61M25/0043; A61M2025/0057
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
A medicosurgical tube in which blood clots or related solid material will not block fluid passage through the tube between the period of insertion of the tube in a patient and beginning of liquid flow through the tube which comprises a distal end portion having at least one fluid inlet opening therein, a proximal end portion and a central body portion joining the distal end portion to the proximal end portion, a resilient cylinder of plastic foam filling the inside of said tube extending from adjacent the distal end portion to beyond the proximal end portion, the end of said resilient cylinder extending beyond said proximal end portion constituting means by which said resilient cylinder may be pulled out of said tube following insertion thereof in a patient.
Claim 2
Dependent Claim
128 words
A medicosurgical tube in which blood clots or related solid material will not block fluid passage through the tube between the period of insertion of the tube in a patient and beginning of liquid flow through the tube which comprises a distal end portion having at least one fluid inlet opening therein, a proximal end portion and a central body portion joining the distal end portion to the proximal end portion, a resilient cylinder of plastic foam filling the inside of said tube extending from adjacent the distal end portion to beyond the proximal end portion, the end of said resilient cylinder extending beyond said proximal end portion constituting means by which said resilient cylinder may be pulled out of said tube following insertion thereof in a patient.
Claim 3
Dependent Claim
38 words
A medicosurgical tube of claim 1 which is a postsurgical drainage tube comprising a cap that covers the proximal end of said tube and encloses the end of said resilient cylinder that extend beyond said proximal end portion.
Claim 4
Dependent Claim
11 words
A medicosurgical tube of claim 2 that is a thoracic catheter.
Claim 5
Dependent Claim
13 words
A medicosurgical tube of claim 1 formed of extruded flexible nonfibrous plastic material.
Claim 6
Dependent Claim
53 words
A medicosurgical tube of claim 1 having a plurality of fluid inlet openings extending through the side of said distal end portion, the central body portion and proximal end portion of the tube being free of any such fluid openings, said resilient cylinder extending distally of all of said side extending inlet openings.
Claim 7
Dependent Claim
15 words
A medicosurgical tube of claim 1 formed of extruded transparent nonfibrous plasticized vinyl chloride polymer.
References Cited (Backward Citations)
US396754A
Cited
FR358933A
Cited
US977825A
Cited
FR430953A
Cited
US1767073A
Cited
US2489756A
Cited
US3190290A
Cited
US3416532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |