US3789841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable guide wire
Assignee: Becton Dickinson and Co
•
Filing: 1971-09-15
•
Granted: 1974-02-05
•
Expires: 1991-09-15
Abstract
Abstract A stainless steel core wire has a tapered portion at one end and a portion of uniform thickness at another end. A Teflon jacket encloses the portion having uniform thickness to form a proximal end and a flexible stainless steel spring encloses the tapered portion forming a distal end. The spring is secured at both ends to the stainless steel core wire.
Inventors
- 👤 W Antoshkiw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/09016; A61M25/09033; A61M2025/09058; A61M2025/09083
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
91 words
A flexible guide wire, comprising: an elongated inner core wire having a proximal portion and a distal portion; a coil spring enclosing the distal portion and fixably attached thereto the coil spring including a proximal end and distal end; and a plastic jacket enclosing and engaging the proximal portion the jacket including a proximal end and a distal end, the jacket distal end terminating at the coil spring proximal end and being substantially equal in diameter to the coil spring such that the jacket forms an extension of the coil spring.
Claim 2
Dependent Claim
91 words
A flexible guide wire, comprising: an elongated inner core wire having a proximal portion and a distal portion; a coil spring enclosing the distal portion and fixably attached thereto the coil spring including a proximal end and distal end; and a plastic jacket enclosing and engaging the proximal portion the jacket including a proximal end and a distal end, the jacket distal end terminating at the coil spring proximal end and being substantially equal in diameter to the coil spring such that the jacket forms an extension of the coil spring.
Claim 3
Dependent Claim
16 words
A guide wire as described in claim 1, wherein the proximal portion is of uniform diameter.
Claim 4
Dependent Claim
26 words
A guide wire as described in claim 1, wherein the coil spring is attached to the inner core wire at both ends of the distal portion.
Claim 5
Dependent Claim
18 words
A guide wire as described in claim 1, wherein the inner core wire is made of stainless steel.
Claim 6
Dependent Claim
17 words
A guide wire as described in claim 1, wherein the coil spring is made of stainless steel.
Claim 7
Dependent Claim
40 words
A flexible guide wire, comprising: an elongated inner core wire having a proximal portion and a tapered distal portion; a coil spring enclosing the distal portion and fixably attached thereto; and a plastic jacket enclosing and engaging the proximal portion.
Claim 8
Dependent Claim
40 words
A flexible guide wire, comprising: an elongated inner core wire having a proximal portion and a tapered distal portion; a coil spring enclosing the distal portion and fixably attached thereto; and a plastic jacket enclosing and engaging the proximal portion.
Claim 9
Dependent Claim
57 words
A flexible guide wire, comprising: an elongated inner core wire having a proximal portion and a distal portion the proximal portion of the inner core wire being of uniform diameter and the distal portion is tapered; a coil spring enclosing the distal portion and fixably attached thereto; and a plastic jacket enclosing and engaging the proximal portion.
Claim 10
Dependent Claim
57 words
A flexible guide wire, comprising: an elongated inner core wire having a proximal portion and a distal portion the proximal portion of the inner core wire being of uniform diameter and the distal portion is tapered; a coil spring enclosing the distal portion and fixably attached thereto; and a plastic jacket enclosing and engaging the proximal portion.
Claim 11
Dependent Claim
26 words
A guide wire as described in claim 7, wherein the coil spring is attached to the inner core wire at both ends of the distal portion.
Claim 12
Dependent Claim
22 words
A guide wire as described in claim 8, wherein the inner core wire and the coil spring are formed of stainless steel.
Claim 13
Dependent Claim
35 words
A guide wire as described in claim 9, wherein the coil spring is attached to the inner core wire by soldering and the solder forms a distal tip at one end of the coil spring.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |