US4908011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for performing a puncturing work on an inflated balloon-like object implanted in a patient
Assignee: BALLOBES APS
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Filing: 1987-05-21
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Granted: 1990-03-13
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Expires: 2007-05-21
Abstract
Abstract An inflated balloon (5) implanted in a patient (3) is provided with a high-frequency receiver system (7) wherein an electric current is induced upon the generation of a high-frequency, electromagnetic field outside the patient which electric current activates a puncturing device, such as an electric resistor element (11), in the balloon (5).
Inventors
- 👤 Erik Jacobsen
- 👤 Christian Overland
- 👤 Allan Northeved
- 👤 Carsten Langkaer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:46
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/0003; A61F5/0013; A61F5/003; A61B; A61B17/00; A61B17/34; A61B17/3468; A61F5/0036; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30667; A61F2002/30668; A61F2250/00; A61F2250/0001
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
77 words
A method of performing puncturing work on an inflated balloon-like object (5) implanted in a patient characterized in that the balloon-like object (5) is provided with a high-frequency receiver system (7), that a high-frequency electromagnetic field is produced in proximity to the patient which field is capable of penetrating into the patient and producing an electric current in the receiver system, and that said current is caused to activate a puncturing device (11) in the balloon-like object.
Claim 2
Independent Claim
77 words
A method of performing puncturing work on an inflated balloon-like object (5) implanted in a patient characterized in that the balloon-like object (5) is provided with a high-frequency receiver system (7), that a high-frequency electromagnetic field is produced in proximity to the patient which field is capable of penetrating into the patient and producing an electric current in the receiver system, and that said current is caused to activate a puncturing device (11) in the balloon-like object.
Claim 3
Dependent Claim
29 words
A method according to claim 1 characterized by using the electric current in the puncturing device to make a thermal perforation of the wall of the balloon-like object (5).
Claim 4
Dependent Claim
36 words
A method according to claim 1 characterized in that condition of the receiver system (7) is checked by detection of a signal produced by the receiver system in respones to a HF-signal emitted outside the patient.
Claim 5
Dependent Claim
109 words
In combination with an inflatable balloon which can be implanted in a patient's body, an apparatus for puncturing said balloon when in an inflated condition and when in a patient's body, said apparatus comprising an electrically-activatable puncturing means located in said balloon, a high-frequency receiver system located in said balloon and connected to said electrically-activatable puncturing means, an antenna coil which is positionable near the patient's body, and a high-frequency generator connected to said antenna coil, said high-frequency generator causing said antenna coil to emit a high-frequency electromagnetic field which causes said high-frequency receiver system to generate an electric current which causes said puncturing means to puncture the balloon.
Claim 6
Dependent Claim
109 words
In combination with an inflatable balloon which can be implanted in a patient's body, an apparatus for puncturing said balloon when in an inflated condition and when in a patient's body, said apparatus comprising an electrically-activatable puncturing means located in said balloon, a high-frequency receiver system located in said balloon and connected to said electrically-activatable puncturing means, an antenna coil which is positionable near the patient's body, and a high-frequency generator connected to said antenna coil, said high-frequency generator causing said antenna coil to emit a high-frequency electromagnetic field which causes said high-frequency receiver system to generate an electric current which causes said puncturing means to puncture the balloon.
Claim 7
Dependent Claim
25 words
The combination of claim 4, wherein said puncturing means is a resistor which heats an adjacent area of the balloon and causes it to perforate.
Claim 8
Dependent Claim
22 words
The combination of claim 4, wherein said high-frequency receiver system comprises an oscillatory circuit containing a receiver coil of an electrically-conductive material.
Claim 9
Dependent Claim
11 words
The combination of claim 6, wherein said electrically-conductive material is silver.
Claim 10
Dependent Claim
11 words
The combination of claim 6, wherein said electrically-conductive material is platinum.
Claim 11
Dependent Claim
11 words
The combination of claim 6, wherein said electrically-conductive material is gold.
Claim 12
Dependent Claim
18 words
The combination of claim 6, wherein said oscillatory circuit also includes a separate capacitor having intermeshing, comb-shaped electrodes.
Claim 13
Dependent Claim
33 words
The combination of claim 6, wherein said balloon includes a valve and wherein said oscillatory circuit also includes a separate capacitor with at least two superposed metal foil layers positioned near said valve.
Claim 14
Dependent Claim
20 words
The combination of claim 6, wherein said high-frequency receiver system comprises at least two receiver coils which form angles therebetween.
Claim 15
Dependent Claim
24 words
The combination of claim 12, wherein said receiver coils are formed of wires and have a wavy configuration adjacent a wall of the balloon.
Claim 16
Dependent Claim
29 words
The combination of claim 6, wherein said high-frequency receiver system includes a non-linear circuit element which causes the receiver system to emit harmonic frequencies upon reception of an HF-signal.
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Cited
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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) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |