US4583974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe for balloon dilation catheters
Assignee: Medtronic Interventional Vascular Inc
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Filing: 1984-04-04
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Granted: 1986-04-22
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Expires: 2004-04-04
Abstract
Abstract A syringe 10 for use with balloon catheters. The syringe 10 has a pivotable latch 26 which may be selectively engaged with a shaft 20, which drives a plunger 25. The plunger 25 is used to expel and withdraw fluid through an output end port 36. The plunger is moved incrementally with the latch engaged and freely with the latch disengaged.
Inventors
- 👤 Denis T. Kokernak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:34
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31565; A61M5/31576; A61M5/31583; A61M5/31586; A61M25/00; A61M25/10; A61M25/1018; A61M25/10181; A61M25/10182; A61M25/10184; A61M5/31585; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/31555; A61M5/31561
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A syringe for use with a ballon catheter, said syringe comprising: a housing containing a cylindrical chamber; a plunger enclosed within said cylindrical chamber; said housing having an output junction for fluid connection to said balloon catheter; a threaded shaft attached to said plunger and extending axially from said housing; a pivotable internally threaded latch which is mounted on said housing and thereby fixed against axial movement with respect to said housing and which can be selectively engaged with said threaded shaft for incremental movement of the plunger and disengaged from said threaded shaft for rapid axial movement of said plunger and shaft.
Claim 2
Dependent Claim
103 words
A syringe for use with a ballon catheter, said syringe comprising: a housing containing a cylindrical chamber; a plunger enclosed within said cylindrical chamber; said housing having an output junction for fluid connection to said balloon catheter; a threaded shaft attached to said plunger and extending axially from said housing; a pivotable internally threaded latch which is mounted on said housing and thereby fixed against axial movement with respect to said housing and which can be selectively engaged with said threaded shaft for incremental movement of the plunger and disengaged from said threaded shaft for rapid axial movement of said plunger and shaft.
Claim 3
Dependent Claim
36 words
The syringe of claim 1 further comprising a spring ball positioned in said housing and adjacent to said latch wherein said latch has detents which act cooperatively with the ball to stabilize the latch positions selected.
Claim 4
Dependent Claim
15 words
The syringe of claim 1 wherein the latch further comprises a handle for easy manipulation.
Claim 5
Dependent Claim
116 words
A syringe for pressurization and depressurization of a balloon catheter comprising: a generally cylindrical, multipieced body comprising a base, a center cylinder, and a narrowed output end; a transparent tube enclosed within said center cylinder; a plunger positioned within said tube for axial movement within said tube; a threaded shaft attached to said plunger and extending outside of said multipieced body at said base; said base including a latch section surrounding said shaft, said latch section including an internally threaded latch member pivotably attached to said base for selective engagement with said shaft and a cooperating nonthreaded portion diametrically opposed to said threaded latch member, thereby permitting sliding movement of said shaft over said cooperating portion.
Claim 6
Dependent Claim
116 words
A syringe for pressurization and depressurization of a balloon catheter comprising: a generally cylindrical, multipieced body comprising a base, a center cylinder, and a narrowed output end; a transparent tube enclosed within said center cylinder; a plunger positioned within said tube for axial movement within said tube; a threaded shaft attached to said plunger and extending outside of said multipieced body at said base; said base including a latch section surrounding said shaft, said latch section including an internally threaded latch member pivotably attached to said base for selective engagement with said shaft and a cooperating nonthreaded portion diametrically opposed to said threaded latch member, thereby permitting sliding movement of said shaft over said cooperating portion.
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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) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |