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US6327503B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for sensing and stimulating gastrointestinal tract on-demand

Assignee: Medtronic Inc
•
Filing: 1998-05-13
•
Granted: 2001-12-04
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Expires: 2018-05-13
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Abstract

Abstract Method and apparatus for providing on-demand stimulation of the gastrointestinal tract. The apparatus features an implantable pulse generator which may be coupled to the gastric system through one or more medical electrical leads. In the preferred embodiment the leads couple to the circular layer of the stomach. The pulse generator preferably features sensor for sensing abnormalities in gastric electrical activity. The pulse generator further features recognizing the type of gastric abnormality sensed. That is detecting whether gastric arrhythmia, bradygastria, dysrhythmia, tachygastria or retrograde propagation or uncoupling are present. If any of these gastric rhythm abnormalities are detected, then the pulse generator features emitting stimulation pulse trains to the gastric system to treat the detected gastric rhythm abnormalities. The stimulation pulse trains may take many forms and may be emitted for various periods of time.

Inventors

  • 👤 Babajide O. Familoni

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 16:01
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/36007

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 66 words
A method of treating a gastroarrhythmia, comprising: sensing an EGG; analyzing, using a zero-crossing analysis, whether a first component of the sensed EGG is present within a pre-defined tachygastria interval of between 1 second and 16 seconds in duration; identifying a tachygastria based on whether the first component of the sensed EGG is within the pre-defined interval; delivering electrical stimulation corresponding to the tachygastria so identified.
Claim 2
Independent Claim 66 words
A method of treating a gastroarrhythmia, comprising: sensing an EGG; analyzing, using a zero-crossing analysis, whether a first component of the sensed EGG is present within a pre-defined tachygastria interval of between 1 second and 16 seconds in duration; identifying a tachygastria based on whether the first component of the sensed EGG is within the pre-defined interval; delivering electrical stimulation corresponding to the tachygastria so identified.
Claim 3
Dependent Claim 29 words
A method of treating a tachygastria according to claim 1 , wherein sensing the EGG further comprises coupling at least one medical electrical lead to a patient's gastrointestinal tissue.
Claim 4
Dependent Claim 35 words
A method of treating a tachygastria according to claim 2 , wherein sensing the EGG further comprises sensing electrical signals within the gastrointestinal tissue between the frequency of approximately 1 to 15 cycles/min. (0.017-0.25 Hz).
Claim 5
Dependent Claim 21 words
A method of treating a tachygastria according to claim 1 , wherein sensing the EGG further comprises digitizing the sensed EGG.
Claim 6
Dependent Claim 39 words
A method of treating a tachygastria according to claim 1 , wherein analyzing whether a first component of the sensed EGG is within a pre-defined interval further comprises analyzing the period of a slow wave portion of the EGG.
Claim 7
Dependent Claim 38 words
A method of treating a tachygastria according to claim 5 , wherein analyzing whether a first component of the sensed EGG is within a pre-defined interval further comprises analyzing the slew rate of a portion of the EGG.
Claim 8
Dependent Claim 36 words
A method of treating a tachygastria according to claim 1 , wherein delivering electrical stimulation corresponding to the gastroarrhythmia identified further comprises delivering electrical stimulation corresponding to the gastroarrhythmia identified for a preset period of time.

References Cited (Backward Citations)

FR2237648A1 Cited
FR2453630A1 Cited
SU1651918A1 Cited
US4981470A Cited
US5188104A Cited
EP0571938A2 Cited
US5423872A Cited
US5292344A Cited
WO1994027672A1 Cited
US5690691A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2004-12-03 2005-06-04 2005-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2008-12-03 2009-06-04 2009-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2012-12-03 2013-06-04 2013-12-04 $7700.00 Window Closed / Lapsed

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