Patent US3833003A successfully refreshed from Google Patents.
US3833003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravascular occluding catheter
Assignee: Individual
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Filing: 1972-07-05
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Granted: 1974-09-03
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Expires: 1992-07-05
Abstract
Abstract A balloon type intravascular occluding catheter comprising a first and second flexible tube and a tapered nose at one terminal end of the tubes. An elastic annulus circumscribes the tubes rearwardly of, but adjacent to the nose and is connected in such a manner as to be inflatable to form a balloon by fluid applied through apertures in the first of the tubes which underlies the annulus of flexible material. A trocar is removably disposed in the second tube, the trocar having a vessel piercing tip thereon, and an aperture in the nose which is aligned with the trocar to permit entrance and egress of the tip beyond the nose so as to engage the vessel wall for penetration thereof and entry of the catheter thereinto. Thereafter the balloon may be inflated so as to occlude the vessel and, if desired, the trocar may be removed to inject medication or the like through the second tube.
Inventors
- 👤 A Taricco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:54
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12027; A61B17/1204; A61B17/12045; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/10; A61B17/34; A61M2025/0008; A61M25/0067; A61M25/0082; A61M25/0084; A61M2025/0089; A61M2025/1043; A61M2025/1052
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
150 words
An intravascular occluding catheter comprising a flexible tubular member having a tapered nose at one terminal end of said members, said flexible tubular member comprising a first tube; a second tube in said first tube, extending into said nose and defining a first passageway between said first and second tubes; a second passageway in said second tube; an elastic annulus having marginal edge portions, said annulus circumscribing said first tube adjacent said nose, said annulus connected along its marginal terminal portions to form an inflatable balloon; apertures in said first tube connecting said first passageway underlying said annulus and providing fluid communication between said first passageway and said annulus; a trocar disposed in said second passageway, said trocar including a terminal end having a vessel piercing tip thereon; and an aperture in said nose dimensioned to embrace said trocar and permit entrance and egress of said tip of said trocar.
Claim 2
Dependent Claim
150 words
An intravascular occluding catheter comprising a flexible tubular member having a tapered nose at one terminal end of said members, said flexible tubular member comprising a first tube; a second tube in said first tube, extending into said nose and defining a first passageway between said first and second tubes; a second passageway in said second tube; an elastic annulus having marginal edge portions, said annulus circumscribing said first tube adjacent said nose, said annulus connected along its marginal terminal portions to form an inflatable balloon; apertures in said first tube connecting said first passageway underlying said annulus and providing fluid communication between said first passageway and said annulus; a trocar disposed in said second passageway, said trocar including a terminal end having a vessel piercing tip thereon; and an aperture in said nose dimensioned to embrace said trocar and permit entrance and egress of said tip of said trocar.
Claim 3
Dependent Claim
21 words
An intravascular occluding catheter in accordance with claim 1 wherein said nose is integral and forms part of said first tube.
Claim 4
Dependent Claim
24 words
An intravascular occluding catheter in accordance with claim 2 including a circumferential recess in the exterior of said first tube for receiving said annulus.
Claim 5
Dependent Claim
16 words
An intravascular occluding catheter in accordance with claim 3 wherein said nose is substantially bullet shaped.
Claim 6
Dependent Claim
17 words
An intravascular occluding catheter in accordance with claim 3 wherein said nose includes an axially offset wall.
Claim 7
Dependent Claim
39 words
An intravascular occluding catheter in accordance with claim 3 wherein said aperture in said nose is axially offset, and said nose includes an offset tapered wall, said wall of said nose merging towards said offset aperture and terminating therewith.
Claim 8
Dependent Claim
21 words
An intravascular occluding catheter in accordance with claim 1 including a flexible sheath circumscribing said tubes and forming a housing therefore.
Claim 9
Dependent Claim
46 words
An intravascular occluding catheter in accordance with claim 7 wherein said sheath terminates in a radially and circumferentially extending end wall, a circumferentially extending second wall on said nose axially spaced from said first wall to define a recess therebetween for receipt of said annulus therein.
Claim 10
Dependent Claim
26 words
An intravascular occluding catheter in accordance with claim 7 wherein the axis of said second tube is displaced radially from the axis of said first tube.
Claim 11
Dependent Claim
36 words
An intravascular occluding catheter in accordance with claim 9 wherein said aperture in said nose is aligned with the passageway of said second tube, and said nose includes a tapered wall which terminates at said aperture.
Claim 12
Dependent Claim
33 words
An intravascular occluding catheter in accordance with claim 1 wherein the axis of said first tube is offset from the axis of said second tube, and including a flexible sheath cirCumscribing said tubes.
Claim 13
Dependent Claim
25 words
An intravascular occluding catheter in accordance with claim 11 wherein said nose extends over said first and second tubes and is coextensive with said sheath.
Claim 14
Dependent Claim
21 words
An intravascular occluding catheter in accordance with claim 12 including a circumferentially extending recess in said sheath for housing said annulus.
Claim 15
Dependent Claim
33 words
An intravascular occluding catheter in accordance with claim 1 wherein said tip includes a point, and a concave cutting edge extending rearwardly of said point and merging into the sidewall of said nose.
Claim 16
Dependent Claim
20 words
An intravascular occluding catheter in accordance with claim 14 wherein said cutting edge extends onto the surface of said nose.
Claim 17
Independent Claim
209 words
A method of intravascular occlusion utilizing a catheter, said catheter comprising a flexible tubular member having a tapered nose at one terminal end of said member, said tubular member comprising a first tube; a second tube in said first tube, extending into said nose and defining between said first and second tubes a first passageway; a second passageway in said second tube, an elastic annulus having marginal edge portions, said annulus circumscribing said first tube adjacent said nose, said annulus connected along its marginal terminal portions to form an inflatable balloon; apertures in said first tube connecting said first passageway underlying said annulus and providing fluid communication between said first passageway and said annulus; a trocar disposed in said second passageway, said trocar including a terminal end having a vessel piercing tip thereon; and an aperture in said nose dimensioned to embrace said trocar and permit entrance and egress of said tip of said trocar; comprising the steps of: piercing the vessel wall with the tip of said trocar extending beyond said aperture in said nose, inserting said catheter into said vessel through the hole thus pierced and beyond the elastic annulus circumscribing the first tube, and inflating said balloon; and thereafter withdrawing said trocar from said second tube.
Claim 18
Independent Claim
209 words
A method of intravascular occlusion utilizing a catheter, said catheter comprising a flexible tubular member having a tapered nose at one terminal end of said member, said tubular member comprising a first tube; a second tube in said first tube, extending into said nose and defining between said first and second tubes a first passageway; a second passageway in said second tube, an elastic annulus having marginal edge portions, said annulus circumscribing said first tube adjacent said nose, said annulus connected along its marginal terminal portions to form an inflatable balloon; apertures in said first tube connecting said first passageway underlying said annulus and providing fluid communication between said first passageway and said annulus; a trocar disposed in said second passageway, said trocar including a terminal end having a vessel piercing tip thereon; and an aperture in said nose dimensioned to embrace said trocar and permit entrance and egress of said tip of said trocar; comprising the steps of: piercing the vessel wall with the tip of said trocar extending beyond said aperture in said nose, inserting said catheter into said vessel through the hole thus pierced and beyond the elastic annulus circumscribing the first tube, and inflating said balloon; and thereafter withdrawing said trocar from said second tube.
Claim 19
Dependent Claim
24 words
A method of intravascular occlusion in accordance with claim 16, including the step of applying medication internally of said vessel through said second tube.
Claim 20
Dependent Claim
23 words
A method of intravascular occlusion in accordance with claim 16, including the step of withdrawing fluid from said vessel through said second passageway.
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |