US4327709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for the percutaneous introduction of intra-aortic balloons into the human body
Assignee: Datascope Investment Corp
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Filing: 1979-10-18
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Granted: 1982-05-04
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Expires: 1999-10-18
Abstract
Abstract Apparatus and method for the percutaneous insertion of intra-aortic balloons into the human body wherein a sheath is provided which can be inserted into an artery through a puncture, and an intra-aortic balloon of a size sufficiently small and having sufficient flexibility is used which can be moved through the sheath into the artery. The apparatus and method includes, puncturing the skin into the artery until a needle means having a bore, introducing a guide wire into the artery through the needle means, advancing a dilator-sheath set over the wire to enlarge the puncture and to place an end of the sheath within the artery, withdrawing the dilator and guide wire and then inserting the balloon through the sheath.
Inventors
- 👤 Bruce L. Hanson
- 👤 Sidney Wolvek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:04
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0111; A61M60/00; A61M60/10; A61M60/122; A61M60/126; A61M60/135; A61M60/139; A61M60/20; A61M60/295; A61M60/30; A61M60/35; A61M60/40; A61M60/497; A61M60/80; A61M60/841; A61M60/843; A61M60/855; A61M60/857; A61M60/859; A61M60/865
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
108 words
A system for percutaneous insertion of an intra-aortic balloon comprising in combination: a flexible hollow sheath having an end adapted to be inserted into an artery of a subject through a puncture, a balloon catheter comprising a catheter tube, a balloon envelope having one end connected to one end of said catheter tube, and an elongated flexible support member within said envelope having one end coupled to the other end of said envelope which is remote from said catheter tube, said envelope folding generally longitudinally along the axis of said support member to have a reduced diameter sufficiently small to be inserted through said sheath into the artery.
Claim 2
Independent Claim
108 words
A system for percutaneous insertion of an intra-aortic balloon comprising in combination: a flexible hollow sheath having an end adapted to be inserted into an artery of a subject through a puncture, a balloon catheter comprising a catheter tube, a balloon envelope having one end connected to one end of said catheter tube, and an elongated flexible support member within said envelope having one end coupled to the other end of said envelope which is remote from said catheter tube, said envelope folding generally longitudinally along the axis of said support member to have a reduced diameter sufficiently small to be inserted through said sheath into the artery.
Claim 3
Dependent Claim
26 words
A system as in claim 1 wherein said balloon envelope folds longitudinally of the axis of said support member as it is inserted into said sheath.
Claim 4
Dependent Claim
15 words
An intra-aortic balloon as in claim 1 wherein said support member comprises a thin wire.
Claim 5
Dependent Claim
26 words
A system as in claim 1 wherein said connecting means also has passages for supplying gas to and exhausting gas from the interior of said envelope.
Claim 6
Dependent Claim
12 words
A system as in claim 4 wherein said connecting means is flexible.
Claim 7
Dependent Claim
14 words
A system as in claim 5 wherein said flexible connecting means comprises a spring.
Claim 8
Dependent Claim
27 words
An intra-aortic balloon as in claim 6 wherein said spring is helically wound, the gas passages being through the openings between the turns of the spring winding.
Claim 9
Dependent Claim
47 words
An intra-aortic balloon as in claim 7 wherein said spring is generally conical having a base and an apex, with said one end of said support member being connected to the apex of the conical spring and the base of the conical spring to said catheter tube.
Claim 10
Dependent Claim
33 words
A system as in claim 1 further comprising a dilator over which said sheath fits, said dilator having a tapered leading end which is advanced into the puncture to enlarge the puncture site.
Claim 11
Dependent Claim
35 words
A system as in claim 9 further comprising means for locking said sheath and dilator to move as a unit such that the advancement of the dilator into the puncture site also advances the sheath.
Claim 12
Dependent Claim
51 words
A system as in claim 9 wherein said dilator has a bore along its length and further comprising guide wire means for threading through said bore of said dilator, one end of said guide wire means being located in said opening to guide the advancement of the dilator into the puncture.
Claim 13
Dependent Claim
35 words
A system as in claim 11 further comprising means for locking said sheath and dilator to move as a unit such that the advancement of the dilator into the puncture site also advances the sheath.
Claim 14
Dependent Claim
40 words
A system as in claim 11 further comprising needle means to make the puncture of the skin and tissue of the patient to reach an artery, said needle means having a hollow bore through which the guide wire can move.
Claim 15
Dependent Claim
44 words
A system as in claim 1 wherein said one end of said envelope is sealed to said one end of catheter tube and said other end of said envelope is sealed to said one end of said elongated support member to form a chamber.
Claim 16
Dependent Claim
26 words
A system as in claim 14 further comprising means for coupling said other end of said support member to said one end of said catheter tube.
Claim 17
Independent Claim
127 words
A method for the percutaneous insertion of an intra-aortic balloon into the artery of a patient comprising the steps of, making a puncture through the skin and tissue of the patient to provide communication to the interior of an artery, advancing a flexible sheath through the puncture to communicate with and to have a portion located within the artery, and advancing an intra-aortic balloon catheter including a balloon envelope which is supported at least in part by a flexible support member which extends for a substantial portion of the length of the envelope with the envelope being folded generally longitudinally of said support member to reduce the diameter of the envelope for insertion through said sheath into the artery and through the artery to a desired location.
Claim 18
Independent Claim
127 words
A method for the percutaneous insertion of an intra-aortic balloon into the artery of a patient comprising the steps of, making a puncture through the skin and tissue of the patient to provide communication to the interior of an artery, advancing a flexible sheath through the puncture to communicate with and to have a portion located within the artery, and advancing an intra-aortic balloon catheter including a balloon envelope which is supported at least in part by a flexible support member which extends for a substantial portion of the length of the envelope with the envelope being folded generally longitudinally of said support member to reduce the diameter of the envelope for insertion through said sheath into the artery and through the artery to a desired location.
Claim 19
Dependent Claim
34 words
A method as in claim 16 wherein the step of advancing the sheath through the puncture further comprises providing a dilator and advancing the dilator into the puncture and artery ahead of the sheath.
Claim 20
Dependent Claim
23 words
A method as in claim 17 wherein the advancing of the sheath and dilator is carried out by advancing both as a unit.
Claim 21
Dependent Claim
33 words
A method as in claim 17 further comprising the steps of providing a guide wire which extends through the puncture into the artery and advancing the sheath and dilator over said guide wire.
Claim 22
Dependent Claim
26 words
A method as in claim 19 further comprising the steps of withdrawing the dilator and the guide wire before inserting the balloon catheter through said sheath.
Claim 23
Dependent Claim
41 words
A method as in claim 20 wherein the guide wire is introduced into the artery by making the puncture with a hollow needle whose end extends into the artery and advancing the guide wire into the artery through said hollow needle.
Claim 24
Dependent Claim
41 words
A method as in claim 19 wherein the guide wire is introduced into the artery by making the puncture with a hollow needle whose end extends into the artery and advancing the guide wire into the artery through said hollow needle.
Claim 25
Dependent Claim
29 words
A method as in claim 16 wherein the step of advancing the sheath comprises inserting a guide wire into the puncture and advancing the sheath over said guide wire.
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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) | 1985-05-03 | 1985-11-02 | 1986-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-03 | 1989-11-02 | 1990-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-03 | 1993-11-02 | 1994-05-04 | $7700.00 | Window Closed / Lapsed |