CA2018466A1 - Expandable vaginal electrode - Google Patents
Expandable vaginal electrodeInfo
- Publication number
- CA2018466A1 CA2018466A1 CA002018466A CA2018466A CA2018466A1 CA 2018466 A1 CA2018466 A1 CA 2018466A1 CA 002018466 A CA002018466 A CA 002018466A CA 2018466 A CA2018466 A CA 2018466A CA 2018466 A1 CA2018466 A1 CA 2018466A1
- Authority
- CA
- Canada
- Prior art keywords
- electrode
- sheet
- elements
- exterior surface
- vagina
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0521—Genital electrodes
- A61N1/0524—Vaginal electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0004—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse
- A61F2/0031—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra
- A61F2/005—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra with pressure applied to urethra by an element placed in the vagina
Abstract
EXPANDABLE VAGINAL ELECTRODE
ABSTRACT OF THE DISCLOSURE
A vaginal electrode (22) adapted to be inserted into a woman's vagina (12) and used as part of a stimulation system (27) to stimulate and constrict muscles surrounding the vagina (12) to prevent the flow of urine through the urethra (18). The electrode (22) includes a nonconductive sheet of material (32) formed into a diametrically compressible spiral tending to unwind. An exterior surface of the sheet (32) contacts the interior vaginal wall after the electrode (22) is inserted into a vagina (12). Conductive electrode elements circumferentially oriented on the exterior surface of the sheet (22) are thereby forced into electrical contact with the vaginal wall. Leads (28) couple electrical stimulation signals to the electrode elements.
ABSTRACT OF THE DISCLOSURE
A vaginal electrode (22) adapted to be inserted into a woman's vagina (12) and used as part of a stimulation system (27) to stimulate and constrict muscles surrounding the vagina (12) to prevent the flow of urine through the urethra (18). The electrode (22) includes a nonconductive sheet of material (32) formed into a diametrically compressible spiral tending to unwind. An exterior surface of the sheet (32) contacts the interior vaginal wall after the electrode (22) is inserted into a vagina (12). Conductive electrode elements circumferentially oriented on the exterior surface of the sheet (22) are thereby forced into electrical contact with the vaginal wall. Leads (28) couple electrical stimulation signals to the electrode elements.
Description
2 ~ 6 EXPANDABLE VAGINAL E~EC~RODE
The present invention relates generally to electrical neuromuscular stimulators. In particular, the present invention is vaginal electrode for use as part of a neuromuscular stimulation system for controlling urinary incontinence in women.
Neuromuscular electrical stimulation, whereby motor nerve fibers are stimulated by means of transcutaneously applied pulses of electrical current to cause contraction of muscles the fibers innervate, is widely used to assist persons afflicted with motor dysfunctions in performing muscle contraction maneuvers.
This technique is also used to re-educate patients in the proper use of the dysfunctional muscles.
For cases in which female urinary incontinence is caused by the patient's inability to properly contract the external sphincter of the urethra, it has been shown that the use of a neuromuscular stimulation system can effectively prevent the unwanted flow of urine. Further-morel use of such a stimulation system can re-educate the patient to voluntarily or automatically impede the flow of urine. After a period of time during which the stimulation is used, a woman may be able to maintain herself dry without continued use of the device.
Known stimulation systems for controlling urinary incontinence usually utilize plug-type electrode carriers which are insertable into a vagina and made in a broad variety of sizes in an attempt to accommodate an individual patient's anatomy. Even with the broad variety of sizes of electrode carriers available, finding a size to make a proper fit within a vagina is not ensured. In addition, even when a proper fit is made, changes in the vagina size due to hormone level changes or changes in body position can result in the electrode/
. .
2 ~
carrier no longer properly fitting the vagina. As a consequence of the change in vagina size, the electrode/
carrier structure tends to slide out of the vagina, with the surface of the electrode loosing direct electrical contact with the vaginal wall.
Clearly, there is a continuing need for improved vaginal electrodes for use with incontinence stimulation systems. In addition to being effective when used as part of a stimulation system, the electrode must be convenient to use. The device must therefore be capable of accommodating a range of vagina sizes. The device must be easy to insert. The device must also maintain contact between the electrode surfaces and the vaginal walls during changes in body position and changes in hormone levels.
The present invention is a vaginal electrode insertable into a woman's vagina as part of a stimulation system for stimulating and constricting muscles adjacent the vagina to prevent the flow of urine through the urethra. The electrode includes an elongated resilient member with an exterior surface on which a plurality of conductive electrode elements reside, and leads for coupling electrical stimulation signals to the electrode elements. The elongated resilient member is capable of transverse compression permitting its insertion into a vagina. The elongated resilient member is also capable of transverse expansion, causing its exterior surface and electrode elements to contact the vagina after insertion within the vagina.
In one embodiment, the electrode includes a diametrically compressible, spiral rolled sheet of material, with an exterior surface contacting the vaginal wall after insertion into the vagina. Circumferentially oriented electrode elements are positioned on the ,~
2 ~
exterior surface of the sheet. Leads are woven into the sheet and couple electrical signals to the electrode elements.
The vaginal electrode of the present invention is convenient and easy to use. A single vaginal elec-trode can accommodate a full range of individual patient anatomies. This characteristic alleviates the inconven-ience of having to choose the proper size electrode.
Furthermore, once the vaginal electrode is inserted into the vagina, changes due to such factors as hormone levels or body position which can cause changes in the vagina size, are compensated for by the compressible/expandable nature of the electrode. Thus, contact between the elec-trode elements and the vaginal wall is maintained as well as the retention of the electrode within the vagina.
The invention is described in detail in connection with the drawings in which:
Figure 1 is a cross-sectional view showing an electrode in accordance with the present invention operatively disposed in the vagina of a user.
Figure 2 is a perspective view of the electrode in its rolled spiral state.
Figure 3 is a perspective view of the electrode in an unrolled, expanded state.
A vaginal electrode 22 in accordance with the present invention is shown operatively disposed within a woman's pelvic region in Figure 1. Pelvic region 10 includes a vagina 12 having vaginal walls 14, a urethra 18, and sphincter muscles 16 surrounding the urethra.
Electrical stimulation of pelvic region 10 by vaginal electrode 22 causes contraction of sphincter muscles 16, thereby constricting urethra 18 and preventing the unwanted flow of urine from bladder 20.
Vaginal electrode 22 has a distal end 24 posi-tioned within vagina 12 and a proximal end 26 positioned adjacent an introitus of vagina 12. Vaginal electrode 22 is part of stimulation system 27, which also includes conductive leads 28 and controller 30. Leads 28 extend out of proximal end 26 and couple electrical signals from controller 30 to vaginal electrode 22. Controller 30 is selectively operable to send a train of pulsed electrical signals of varying intensity (e.g. amplitude and pulse width) and frequency through leads 28 to vaginal electrode 22.
Vaginal electrode 22, as illustrated in FIGS.
2 and 3, is an elongated member that is resilient and capable of both transverse compression and transverse expansion. Vaginal electrode 22 includes a sheet of material 32 which is shown in Figure 2 in a diametrically compressed, rolled spiral state. When sheet 32 is in its compressed spiral state, electrode 22 can be inserted and positioned within vagina 12. Sheet 32 also retains an expanded, rolled spiral configuration when sheet 32 is not diametrically compressed. The tendency of sheet 32 to unwind from its compressed spiral state to its expanded spiral state provides an outwardly oriented transverse or diametric pressure so that electrode 22 is retained within vagina 12. Figure 3 shows ~heet 32 in a forced, expanded or unrolled state illustrating its interior surface and sheet-like geometrical qualities.
Sheet 32 can be formed from polymer materials, polymer-covered metals or other nonconductive shape-memory materials.
Electrode elements 34 are positioned parallel to one another and mounted in a circumferentially oriented fashion upon the exterior surface of rolled sheet 32. Electrode elements 34 are comprised of a conductive material such as conductive polymer or carbon-;~3.~
loaded silicone rubber.
Nonconductive elements 36 separate and insulate conductive electrode elements 34 from one another. Non-conductive elements 36 are positioned parallel to one another and mounted in a circumferentially oriented fashion upon the exterior surface of rolled sheet 32.
Nonconductive elements 36 are made of a nonconductive material such as nonconductive silicone rubber.
Lead housing 38 extends from proximal end 26 of rolled sheet 32 and protects leads 28. Housing 38 also provides structural support for leads 28 to facilitate handling of vaginal electrode 22 during insertion, positioning, and removal. In the embodiment shown in Figure 3, leads 28 are woven into sheet 32 parallPl to one another. Contact portions 40 of leads 28 (shown in phantom in Figure 3) are exposed on the exterior surface of sheet 32, contacting electrode elements 34 to provide the coupling of electrical signals. Electrode elements 34 and nonconductive elements 36 can be layers applied to sheet 32 after leads 28 are woven in the sheet.
In operation, the use of vaginal electrode 22 as part of stimulation system 27, ~egins with the inser-tion of vaginal electrode 22 into vagina 12. Prior to insertion, vaginal electrode 22 must first be transverse-ly compressed into a spiral by rolling and circumferen-tially applying pressure to rolled sheet 32 so that the diameter thereof permits insertion within the introitus of vagina 12. Next, while holding vaginal electrode 22 by hand to maintain the compressed spiral state, the distal end 24 of vaginal electrode 22 is inserted through the introitus into vagina 12 until proximal end 26 is adjacent the introitus.
Once vaginal electrode 22 is inserted and posi-tioned within vagina 12, rolled sheet 32 unwinds and .
-' ' : ~ -, ' :
2~ o ~
transversely expands (i.e., has spring-like shape memory) until its diameter increases to such an extent that electrode elements 34 establish contact with vaginal walls 14. Vaginal electrode 22 is retained in vagina 12 with electrode elements 34 forced into electrical contact with vaginal walls 14 by the tendency of rolled sheet 32 to unwind. This transverse pressure is consistently maintained so hormone level changes or changes in body position do not alter retention of electrode 22 within vagina 12.
After vaginal electrode 22 is firmly seated within vagina 12, controller 30 (which is typically clipped to the clothing of the user) is manipulated by an operator to provide stimulating signals to electrode elements 34. The active electrode elements 34 in contact with vaginal walls 14 transcutaneously transmit the stimulation signals to pelvic region 10 so as to cause contraction of muscles 16, thereby constricting urethra 18. The illustrated embodiment of electrode 22 includes four electrode elements 34. Stimulation signals can be applied through one or more pairs of electrodes 22 to most effectively recruit muscles 16. The use of vaginal electrode 22 as part of stimulation system 27 provides an effective tool in controlling female urinary incontinence.
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the ` 30 spirit and scope of the invention.
, .
The present invention relates generally to electrical neuromuscular stimulators. In particular, the present invention is vaginal electrode for use as part of a neuromuscular stimulation system for controlling urinary incontinence in women.
Neuromuscular electrical stimulation, whereby motor nerve fibers are stimulated by means of transcutaneously applied pulses of electrical current to cause contraction of muscles the fibers innervate, is widely used to assist persons afflicted with motor dysfunctions in performing muscle contraction maneuvers.
This technique is also used to re-educate patients in the proper use of the dysfunctional muscles.
For cases in which female urinary incontinence is caused by the patient's inability to properly contract the external sphincter of the urethra, it has been shown that the use of a neuromuscular stimulation system can effectively prevent the unwanted flow of urine. Further-morel use of such a stimulation system can re-educate the patient to voluntarily or automatically impede the flow of urine. After a period of time during which the stimulation is used, a woman may be able to maintain herself dry without continued use of the device.
Known stimulation systems for controlling urinary incontinence usually utilize plug-type electrode carriers which are insertable into a vagina and made in a broad variety of sizes in an attempt to accommodate an individual patient's anatomy. Even with the broad variety of sizes of electrode carriers available, finding a size to make a proper fit within a vagina is not ensured. In addition, even when a proper fit is made, changes in the vagina size due to hormone level changes or changes in body position can result in the electrode/
. .
2 ~
carrier no longer properly fitting the vagina. As a consequence of the change in vagina size, the electrode/
carrier structure tends to slide out of the vagina, with the surface of the electrode loosing direct electrical contact with the vaginal wall.
Clearly, there is a continuing need for improved vaginal electrodes for use with incontinence stimulation systems. In addition to being effective when used as part of a stimulation system, the electrode must be convenient to use. The device must therefore be capable of accommodating a range of vagina sizes. The device must be easy to insert. The device must also maintain contact between the electrode surfaces and the vaginal walls during changes in body position and changes in hormone levels.
The present invention is a vaginal electrode insertable into a woman's vagina as part of a stimulation system for stimulating and constricting muscles adjacent the vagina to prevent the flow of urine through the urethra. The electrode includes an elongated resilient member with an exterior surface on which a plurality of conductive electrode elements reside, and leads for coupling electrical stimulation signals to the electrode elements. The elongated resilient member is capable of transverse compression permitting its insertion into a vagina. The elongated resilient member is also capable of transverse expansion, causing its exterior surface and electrode elements to contact the vagina after insertion within the vagina.
In one embodiment, the electrode includes a diametrically compressible, spiral rolled sheet of material, with an exterior surface contacting the vaginal wall after insertion into the vagina. Circumferentially oriented electrode elements are positioned on the ,~
2 ~
exterior surface of the sheet. Leads are woven into the sheet and couple electrical signals to the electrode elements.
The vaginal electrode of the present invention is convenient and easy to use. A single vaginal elec-trode can accommodate a full range of individual patient anatomies. This characteristic alleviates the inconven-ience of having to choose the proper size electrode.
Furthermore, once the vaginal electrode is inserted into the vagina, changes due to such factors as hormone levels or body position which can cause changes in the vagina size, are compensated for by the compressible/expandable nature of the electrode. Thus, contact between the elec-trode elements and the vaginal wall is maintained as well as the retention of the electrode within the vagina.
The invention is described in detail in connection with the drawings in which:
Figure 1 is a cross-sectional view showing an electrode in accordance with the present invention operatively disposed in the vagina of a user.
Figure 2 is a perspective view of the electrode in its rolled spiral state.
Figure 3 is a perspective view of the electrode in an unrolled, expanded state.
A vaginal electrode 22 in accordance with the present invention is shown operatively disposed within a woman's pelvic region in Figure 1. Pelvic region 10 includes a vagina 12 having vaginal walls 14, a urethra 18, and sphincter muscles 16 surrounding the urethra.
Electrical stimulation of pelvic region 10 by vaginal electrode 22 causes contraction of sphincter muscles 16, thereby constricting urethra 18 and preventing the unwanted flow of urine from bladder 20.
Vaginal electrode 22 has a distal end 24 posi-tioned within vagina 12 and a proximal end 26 positioned adjacent an introitus of vagina 12. Vaginal electrode 22 is part of stimulation system 27, which also includes conductive leads 28 and controller 30. Leads 28 extend out of proximal end 26 and couple electrical signals from controller 30 to vaginal electrode 22. Controller 30 is selectively operable to send a train of pulsed electrical signals of varying intensity (e.g. amplitude and pulse width) and frequency through leads 28 to vaginal electrode 22.
Vaginal electrode 22, as illustrated in FIGS.
2 and 3, is an elongated member that is resilient and capable of both transverse compression and transverse expansion. Vaginal electrode 22 includes a sheet of material 32 which is shown in Figure 2 in a diametrically compressed, rolled spiral state. When sheet 32 is in its compressed spiral state, electrode 22 can be inserted and positioned within vagina 12. Sheet 32 also retains an expanded, rolled spiral configuration when sheet 32 is not diametrically compressed. The tendency of sheet 32 to unwind from its compressed spiral state to its expanded spiral state provides an outwardly oriented transverse or diametric pressure so that electrode 22 is retained within vagina 12. Figure 3 shows ~heet 32 in a forced, expanded or unrolled state illustrating its interior surface and sheet-like geometrical qualities.
Sheet 32 can be formed from polymer materials, polymer-covered metals or other nonconductive shape-memory materials.
Electrode elements 34 are positioned parallel to one another and mounted in a circumferentially oriented fashion upon the exterior surface of rolled sheet 32. Electrode elements 34 are comprised of a conductive material such as conductive polymer or carbon-;~3.~
loaded silicone rubber.
Nonconductive elements 36 separate and insulate conductive electrode elements 34 from one another. Non-conductive elements 36 are positioned parallel to one another and mounted in a circumferentially oriented fashion upon the exterior surface of rolled sheet 32.
Nonconductive elements 36 are made of a nonconductive material such as nonconductive silicone rubber.
Lead housing 38 extends from proximal end 26 of rolled sheet 32 and protects leads 28. Housing 38 also provides structural support for leads 28 to facilitate handling of vaginal electrode 22 during insertion, positioning, and removal. In the embodiment shown in Figure 3, leads 28 are woven into sheet 32 parallPl to one another. Contact portions 40 of leads 28 (shown in phantom in Figure 3) are exposed on the exterior surface of sheet 32, contacting electrode elements 34 to provide the coupling of electrical signals. Electrode elements 34 and nonconductive elements 36 can be layers applied to sheet 32 after leads 28 are woven in the sheet.
In operation, the use of vaginal electrode 22 as part of stimulation system 27, ~egins with the inser-tion of vaginal electrode 22 into vagina 12. Prior to insertion, vaginal electrode 22 must first be transverse-ly compressed into a spiral by rolling and circumferen-tially applying pressure to rolled sheet 32 so that the diameter thereof permits insertion within the introitus of vagina 12. Next, while holding vaginal electrode 22 by hand to maintain the compressed spiral state, the distal end 24 of vaginal electrode 22 is inserted through the introitus into vagina 12 until proximal end 26 is adjacent the introitus.
Once vaginal electrode 22 is inserted and posi-tioned within vagina 12, rolled sheet 32 unwinds and .
-' ' : ~ -, ' :
2~ o ~
transversely expands (i.e., has spring-like shape memory) until its diameter increases to such an extent that electrode elements 34 establish contact with vaginal walls 14. Vaginal electrode 22 is retained in vagina 12 with electrode elements 34 forced into electrical contact with vaginal walls 14 by the tendency of rolled sheet 32 to unwind. This transverse pressure is consistently maintained so hormone level changes or changes in body position do not alter retention of electrode 22 within vagina 12.
After vaginal electrode 22 is firmly seated within vagina 12, controller 30 (which is typically clipped to the clothing of the user) is manipulated by an operator to provide stimulating signals to electrode elements 34. The active electrode elements 34 in contact with vaginal walls 14 transcutaneously transmit the stimulation signals to pelvic region 10 so as to cause contraction of muscles 16, thereby constricting urethra 18. The illustrated embodiment of electrode 22 includes four electrode elements 34. Stimulation signals can be applied through one or more pairs of electrodes 22 to most effectively recruit muscles 16. The use of vaginal electrode 22 as part of stimulation system 27 provides an effective tool in controlling female urinary incontinence.
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the ` 30 spirit and scope of the invention.
, .
Claims (32)
1. A vaginal electrode, including:
an elongated resilient member having an exterior surface and capable of transverse compression to a profile permitting insertion into a vagina and transverse expansion causing the exterior surface to contact the vagina;
a plurality of conductive electrode elements on the exterior surface of the resilient member; and leads for coupling electrical signals to the electrode elements.
an elongated resilient member having an exterior surface and capable of transverse compression to a profile permitting insertion into a vagina and transverse expansion causing the exterior surface to contact the vagina;
a plurality of conductive electrode elements on the exterior surface of the resilient member; and leads for coupling electrical signals to the electrode elements.
2. The electrode of claim 1 wherein the resilient member includes a diametrically compressible spiral sheet of material tending to unwind and contact the vaginal wall when inserted into the vagina.
3. The electrode of claim 2 wherein the sheet of material includes a polymer sheet.
4. The electrode of claim 2 wherein the sheet of material includes a polymer covered, thin metal sheet.
5. The electrode of claim 2 wherein the sheet of material includes a sheet of nonconductive shape-memory material.
6. The electrode of claim 2 wherein the electrode elements extend across the outside surface of the sheet so as to extend around the circumference of the spiral sheet.
7. The electrode of claim 6 wherein the electrode elements include conductive polymer elements.
8. The electrode of claim 7 wherein the electrode elements include carbon loaded silicon rubber.
9. The electrode of claim 8 and further including nonconductive silicon rubber on the exterior surface of the sheet between the electrode elements.
10. The electrode of claim 2 wherein:
the leads include conductors woven into the sheet of material and having contact portions which extend from the exterior surface; and the electrode elements include conductive elements on the exterior surface of sheet and in electrical contact with the contact portions of the leads.
the leads include conductors woven into the sheet of material and having contact portions which extend from the exterior surface; and the electrode elements include conductive elements on the exterior surface of sheet and in electrical contact with the contact portions of the leads.
11. The electrode of claim 10 wherein the electrode elements include conductive polymer elements.
12. The electrode of claim 1 wherein the electrode elements include conductive polymer elements.
13. A vaginal electrode, including:
a diametrically compressible spiral sheet of material tending to unwind, with an exterior surface contacting a vaginal wall after insertion into the vagina;
a plurality of electrically isolated conductive electrode elements on the exterior surface of the sheet of material; and leads for coupling electrical signals to the electrode elements.
a diametrically compressible spiral sheet of material tending to unwind, with an exterior surface contacting a vaginal wall after insertion into the vagina;
a plurality of electrically isolated conductive electrode elements on the exterior surface of the sheet of material; and leads for coupling electrical signals to the electrode elements.
14. The electrode of claim 13 wherein the sheet of material includes a polymer sheet.
15. The electrode of claim 13 wherein the sheet of material includes a polymer-covered, thin metal sheet.
16. The electrode of claim 13 wherein the sheet of material includes a nonconductive sheet of shape memory material.
17. The electrode of claim 13 wherein the electrode elements include conductive polymer elements.
18. The electrode of claim 17 wherein the electrode elements include carbon-loaded silicone rubber.
19. The electrode of claim 18 and further including nonconductive silicone rubber on the exterior surface of the sheet between the electrode elements.
20. The electrode of claim 13 wherein:
the leads include conductors woven into the sheet of material and having contact portions which extend from the exterior surface; and the electrode elements include conductive elements on the exterior surface of the sheet and in electrical contact with the contact portions of the leads.
the leads include conductors woven into the sheet of material and having contact portions which extend from the exterior surface; and the electrode elements include conductive elements on the exterior surface of the sheet and in electrical contact with the contact portions of the leads.
21. The electrode of claim 20 wherein the electrode elements include conductive polymer elements.
22. The electrode of claim 21 wherein the electrode elements include carbon-loaded silicone rubber.
23. The electrode of claim 22 and further including nonconductive silicone rubber on the exterior surface of the sheet between the electrode elements.
24. A vaginal electrode, including:
a nonconductive sheet of material formed into a diametrically compressible spiral tending to unwind, with an exterior surface contacting a vaginal wall after insertion into the vagina;
conductive leads woven into the sheet having contact portions exposed on the exterior surface of the sheet;
conductive electrode elements extending around the circumference of the exterior surface of the sheet and in electrical contact with the contact portions; and nonconductive strips extending around the circumference of the outer surface of the sheet between the electrode elements.
a nonconductive sheet of material formed into a diametrically compressible spiral tending to unwind, with an exterior surface contacting a vaginal wall after insertion into the vagina;
conductive leads woven into the sheet having contact portions exposed on the exterior surface of the sheet;
conductive electrode elements extending around the circumference of the exterior surface of the sheet and in electrical contact with the contact portions; and nonconductive strips extending around the circumference of the outer surface of the sheet between the electrode elements.
25. The electrode of claim 24 wherein the sheet of material includes a polymer sheet.
26. The electrode of claim 24 wherein the sheet of material includes a polymer-covered, thin metal sheet.
27. The electrode of claim 24 wherein the sheet of material includes a nonconductive sheet of shape memory material.
28. The electrode of claim 24 wherein the electrode elements include conductive polymer elements.
29. The electrode of claim 28 wherein the electrode elements include carbon loaded silicon rubber.
30. The electrode of claim 24 wherein the strips include nonconductive silicon rubber strips.
31. The electrode of claim 24 wherein the leads are oriented perpendicular to the longitudinal axis of the spiral.
32. The electrode of claim 24 wherein the electrode elements are oriented perpendicular to the longitudinal axis of the spiral.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/389,175 US5010895A (en) | 1989-08-03 | 1989-08-03 | Expandable vaginal electrode |
| US07/389,175 | 1989-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2018466A1 true CA2018466A1 (en) | 1991-02-03 |
Family
ID=23537160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002018466A Abandoned CA2018466A1 (en) | 1989-08-03 | 1990-06-07 | Expandable vaginal electrode |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5010895A (en) |
| EP (1) | EP0411632B1 (en) |
| CA (1) | CA2018466A1 (en) |
| DE (1) | DE69004028T2 (en) |
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| US5199443A (en) * | 1991-03-26 | 1993-04-06 | Empi, Inc. | Incontinence electrode apparatus |
| GB2301287B (en) * | 1992-05-23 | 1997-02-05 | Keith Edward Tippey | Electrical stimulation for treatment of incontinence and other neuro-muscular disorders |
| GB9211085D0 (en) * | 1992-05-23 | 1992-07-08 | Tippey Keith E | Electrical stimulation |
| US5476434A (en) * | 1992-05-27 | 1995-12-19 | Kalb; Irvin M. | Female incontinence device including electronic sensors |
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| USD415835S (en) * | 1997-06-24 | 1999-10-26 | Empi Corp. | Vaginal electrode |
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| US5871533A (en) * | 1998-03-18 | 1999-02-16 | Boutos; David | Apparatus for stimulating living tissue |
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- 1989-08-03 US US07/389,175 patent/US5010895A/en not_active Expired - Lifetime
-
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- 1990-08-02 DE DE90114861T patent/DE69004028T2/en not_active Expired - Fee Related
- 1990-08-02 EP EP90114861A patent/EP0411632B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69004028T2 (en) | 1994-02-17 |
| DE69004028D1 (en) | 1993-11-25 |
| EP0411632A1 (en) | 1991-02-06 |
| EP0411632B1 (en) | 1993-10-20 |
| US5010895A (en) | 1991-04-30 |
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Legal Events
| Date | Code | Title | Description |
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| FZDE | Discontinued |