WO1995026780A1 - Electrical treatment apparatus - Google Patents
Electrical treatment apparatus Download PDFInfo
- Publication number
- WO1995026780A1 WO1995026780A1 PCT/GB1995/000768 GB9500768W WO9526780A1 WO 1995026780 A1 WO1995026780 A1 WO 1995026780A1 GB 9500768 W GB9500768 W GB 9500768W WO 9526780 A1 WO9526780 A1 WO 9526780A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrodes
- electrode
- electrode assembly
- support
- assembly
- Prior art date
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
- 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
- A61N1/0507—Electrodes for the digestive system
- A61N1/0512—Anal electrodes
Definitions
- THIS INVENTION relates to electrical treatment apparatus.
- an electrode assembly for use in muscular stimulation is shaped for insertion in a body orifice and comprises two spaced electrodes on an external surface characterised in that each electrode extends both axially and circumferentially.
- the electrodes may be on an insulating substrate.
- the or each electrode is present through the length of the surface and may for example be wound in a helix.
- the electrodes may be formed on a flexible sheet mounted on a support, which support can be separate from the sheet.
- the invention includes an electrode device for use in an assembly as above and comprising a flexible sheet carrying the electrodes.
- the support may comprise electric supply contacts engaging the electrodes. There may be a portion disposed to limit insertion into the body orifice.
- Fig. 1 is a perspective view of a vaginal electrode assembly
- Fig. 2 is a view of Fig. 1 with part folded open;
- Fig. 3 is a perspective view of a modification
- Fig. 4 is a perspective view of another electrode
- Fig. 5 is an end view of Fig. 4;
- Fig. 6 is a view of dissembled parts of a further electrode of Fig. 6;
- Fig. 7 is a view of the assembled electrode of Fig. 6;
- Figs. 8, 9, 10 show use of the electrode
- Fig. 11 shows a control unit; and Figs 12-14 show another arrangement.
- the second frequency band occurs at 30pps, and feeds information to the fast contracting muscle fibres which give power to a movement. This feeding occurs naturally in a phasic way, and therefore treatment protocols to promote these fibres are given for shorter periods of time.
- Neuromuscular stimulation may be used in patients with anorectal incontinence to increase the postural tone of the pelvic floor musculature and to strengthen the internal and external anal sphincter.
- the use of an internal electrode also increases sensory awareness of rectal distension, thus helping the patient to differentiate between flatus, liquid and solid stool.
- Reflex activity increases the colonic shuttle reflex and leads to the formation of solid stool form; most of these patients are only incontinent of liquid or soft form stool.
- the electrodes are placed in the vagina or rectum and electrical pulses are supplied from a control unit in accordance with a treatment programme.
- treatment programme I may be of 1 hour per day for 12 weeks, the programme I being pulses of 200 ⁇ S width, 2 seconds on 2 seconds off at a frequency of 10 pulses per second.
- treatment programme II in which the muscles are voluntarily contracted by the patient during stimulation from the electrodes.
- treatment programme II may be for 1 minute per day rising to 10 minutes per day with a pulse width of 200 S, for 4 seconds on 4 seconds off at a frequency of 35 pulses per second.
- the present invention provides an electrode device for use in neuromuscular stimulation.
- an electrode assembly 10 comprises an electrically insulating and medically inert substrate or support 1 1 which carries an electrode portion 12 in the form of a helix.
- the substrate 1 1 may for example be of foamed polystyrene, so-called pod grade, and is thus light in weight. Although not rigid, the substrate or support 11 is effectively of fixed shape with no tendency to expand.
- the substrate 1 1 has a domed inner end 13, a tapered body 14, and a locating enlarged outer end 15, the portions 13, 15 providing opposed shoulders 13a, 15a.
- An axial recess 16 in the substrate receives electric conductors 17, 18 respectively connected to flat conducting elements 17a, 18a.
- the radially inner surface of the sheet 19 can be adhered to the body 14.
- the shoulders 13a, 15a help to locate the sheet 19.
- the electrodes 21, 22 may for example be of aluminium. It will be understood that a user may in some cases carry the control unit 23 about with them.
- Programme I may be used to treat detrussor instability.
- the assembly 10 in use is inserted into the vagina 30 Figs. 8, 10. Indicated are bladder 31, urethra 32, coccyx 33, uterus 34, pelvic floor or levator ani muscles 35, rectum 36.
- the enlarged outer end 15 enables shoulder 15a to locate the assembly 10 by engagement with the body adjacent the entrance to the vagina 30.
- the electrodes 21 , 22 contact the vaginal wall surface.
- each electrode 21 , 22 is present at each axial position of the body 14 irrespective of the axial or rotational position of the body 14 into the vagina.
- the end portions 13, 15 can take different shapes (Figs. 3, 4, 5) and body 14 can be of uniform cross-section (Fig. 4).
- the assembly 10 is formed e.g. by casting two parts 40, 41 with grooves 42, for receipt of conductors 17, 18, and projections 43 and recesses 44 which can " co-operate with a snap action when the parts are brought together Fig. 7.
- the assembly 10 can be used for muscle stimulation also in the rectum, see Fig. 9.
- the plug or assembly 10 is fitted with a small flange 15 which ensures that the treatment areas of the electrodes are placed on the relevant levator ani muscles.
- the helical winding of electrodes 21 , 22 gives even charge density in any position.
- the flange also ensures orientation.
- the light bright nature of the plug in addition to the above design features enables the woman to walk around and generally take part in most day to day activities whilst receiving treatment.
- Pulsed electric supply to the electrodes 21 , 22 can be from control unit 23 Fig. 11 which may be battery driven, with on/off switch 50, LED 51 to indicate "on", a switch 52 to select programme I or II; manually operable buttons 53, 54 to increase or decrease the amplitude or intensity of the pulses, and output leads 55, 56 for removable attachment respectively to ends of fly leads 17, 18 themselves respectively secured at their other ends to the electrodes 17a, 18a.
- the fly leads 17, 18 can be secured to the electrodes during or after securement of the electrodes to the blank 19.
- the device 10 can be disposed of, or it can be re-used.
- the substrate is electrically non-conductive.
- Figs. 12, 13, 14 illustrate another arrangement in which the substrate 11a is a plastics support e.g. blow moulded, generally cylindrical with a rounded end l ib.
- the electrodes- are formed on a separate flexible sheath 60 of electrically insulating material e.g. cellulose or polypropylene.
- the sheath 60 is in the form of a container having a generally projecting tubular portion 61 and a flared portion 62.
- the support 11a fills and thus stiffens the portion 61 into substantially a cylinder and the flared portion 62 assists (Fig. 14) in locating the device 10 axially.
- the end of support 11a can be flared to assist in correct axial positioning.
- the electrodes 63, 64 are formed as coatings on the sheath 60 e.g. by sputtering and in part receive an outer electrically insulating coating 65 leaving a contact area 66 which can be engaged by clips 67 at the ends of leads 55, 56.
- the electrodes are generally helical in 'use in portion 61.
- the support can be used with a succession of sheaths 60 which are disposed of after use.
- each of the electrodes (one anode, one cathode) is present throughout the length of the body 14, 61 and effective muscle stimulation is thus obtained substantially irrespective of variation in axial position of the muscle 35 in relation to the body 14, 61 which results from vaginas of different size, and any need for rotational adjustment is partly or wholly removed having regard to the fact that muscle damage may be at any place around the vagina or rectum wall.
- each electrode 21 , 22; 63, 64 extends circumferential ly substantially 180° to give a total of substantially 360° as viewed axially, but effective arrangements can have a greater or lesser circumferential extent.
- the electrodes are uniform helices of equal width and of equal width to the angular helical gaps between the electrodes, as shown in Figs. 1, 7 so that a maximum area of muscle is stimulated, preferably all the surrounding wall.
- the vaginal and rectum wall musculature has angularly spaced pudendal nerve networks whose positions can vary, possibly positioned on the left and right side of the orifice.
- the nerve networks are both motor and sensory.
- the circumferentially extending electrodes make it more likely that one or both nerve networks are stimulated without rotary repositioning of the device.
- the greater area permits a lesser, and therefore more flexible, charge density for a given power input; and the helical configuration enables stimulation of a greater amount of axially extending muscles and circumferentially extending muscles because the electrodes and the gaps between have both axial and circumferential components at each axial position.
- vaginal or rectal orifice can change in cross-section with the posture of the individual and the circumferential configuration of electrodes and gaps reduces the possibility of a change in cross-section reducing the amount of muscle stimulation which would occur if the electrodes lost contact with the orifice musculature.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU21119/95A AU2111995A (en) | 1994-04-05 | 1995-04-04 | Electrical treatment apparatus |
EP95913908A EP0754076A1 (en) | 1994-04-05 | 1995-04-04 | Electrical treatment apparatus |
JP7525526A JPH09510902A (en) | 1994-04-05 | 1995-04-04 | Electrotherapy device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9406700A GB9406700D0 (en) | 1994-04-05 | 1994-04-05 | Improvements in or relating to electrical treatment apparatus |
GB9406700.6 | 1994-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995026780A1 true WO1995026780A1 (en) | 1995-10-12 |
Family
ID=10753029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1995/000768 WO1995026780A1 (en) | 1994-04-05 | 1995-04-04 | Electrical treatment apparatus |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0754076A1 (en) |
JP (1) | JPH09510902A (en) |
AU (1) | AU2111995A (en) |
CA (1) | CA2187282A1 (en) |
GB (1) | GB9406700D0 (en) |
WO (1) | WO1995026780A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2762983A1 (en) * | 1997-05-09 | 1998-11-13 | Pascal Blondelle | Vaginal or anal endo=cavity probe |
FR2767481A1 (en) * | 1997-08-25 | 1999-02-26 | Dias Andre Mamberti | Vaginal or anal endo-cavity probe |
WO2001019275A3 (en) * | 1999-09-17 | 2001-11-01 | Regenesis Biomedical Inc | Cover for electromagnetic treatment applicator |
US6967281B2 (en) | 1999-09-17 | 2005-11-22 | Regenesis Biomedical, Inc. | Cover for electromagnetic treatment applicator |
ITBO20090146A1 (en) * | 2009-03-11 | 2009-06-10 | Roberto Spinelli | DISPOSABLE CONDUCTIVE WALLS FOR PROBES ENDOCAVITARY SPECIFICATIONS FOR EXPANSION FOR ELECTROSTIMULATION OR BIOFEEDBACK OR FOR SURFACE ELECTRODES ALREADY PRESENT ON THE MARKET |
GB2499585A (en) * | 2012-02-20 | 2013-08-28 | Cyrex Ltd | Controller for electro-stimulation device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4733466B2 (en) * | 2005-08-19 | 2011-07-27 | ダイユーペイント株式会社 | Health equipment |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119516A (en) * | 1981-06-08 | 1983-11-16 | John Delbert Perry | Vaginal myograph |
US4881526A (en) * | 1988-05-27 | 1989-11-21 | Empi, Inc. | Intravaginal electrode and stimulation system for controlling female urinary incontinence |
EP0411632A1 (en) * | 1989-08-03 | 1991-02-06 | Empi, Inc. | Expandable vaginal electrode |
WO1992014510A1 (en) * | 1991-02-21 | 1992-09-03 | Pez Rene | Vaginal probe |
-
1994
- 1994-04-05 GB GB9406700A patent/GB9406700D0/en active Pending
-
1995
- 1995-04-04 WO PCT/GB1995/000768 patent/WO1995026780A1/en not_active Application Discontinuation
- 1995-04-04 AU AU21119/95A patent/AU2111995A/en not_active Abandoned
- 1995-04-04 EP EP95913908A patent/EP0754076A1/en not_active Withdrawn
- 1995-04-04 JP JP7525526A patent/JPH09510902A/en active Pending
- 1995-04-04 CA CA 2187282 patent/CA2187282A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119516A (en) * | 1981-06-08 | 1983-11-16 | John Delbert Perry | Vaginal myograph |
US4881526A (en) * | 1988-05-27 | 1989-11-21 | Empi, Inc. | Intravaginal electrode and stimulation system for controlling female urinary incontinence |
EP0411632A1 (en) * | 1989-08-03 | 1991-02-06 | Empi, Inc. | Expandable vaginal electrode |
WO1992014510A1 (en) * | 1991-02-21 | 1992-09-03 | Pez Rene | Vaginal probe |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2762983A1 (en) * | 1997-05-09 | 1998-11-13 | Pascal Blondelle | Vaginal or anal endo=cavity probe |
FR2767481A1 (en) * | 1997-08-25 | 1999-02-26 | Dias Andre Mamberti | Vaginal or anal endo-cavity probe |
WO2001019275A3 (en) * | 1999-09-17 | 2001-11-01 | Regenesis Biomedical Inc | Cover for electromagnetic treatment applicator |
US6967281B2 (en) | 1999-09-17 | 2005-11-22 | Regenesis Biomedical, Inc. | Cover for electromagnetic treatment applicator |
US6974961B1 (en) | 1999-09-17 | 2005-12-13 | Regenesis Biomedical, Inc. | Cover for electromagnetic treatment applicator |
US7572985B2 (en) | 1999-09-17 | 2009-08-11 | Regenesis Biomedical, Inc. | Disposable protective cover for RF treatment apparatus |
US7579555B2 (en) | 1999-09-17 | 2009-08-25 | Regenesis Biomedical, Inc. | RF shielding cover for RF radiating applicator |
ITBO20090146A1 (en) * | 2009-03-11 | 2009-06-10 | Roberto Spinelli | DISPOSABLE CONDUCTIVE WALLS FOR PROBES ENDOCAVITARY SPECIFICATIONS FOR EXPANSION FOR ELECTROSTIMULATION OR BIOFEEDBACK OR FOR SURFACE ELECTRODES ALREADY PRESENT ON THE MARKET |
GB2499585A (en) * | 2012-02-20 | 2013-08-28 | Cyrex Ltd | Controller for electro-stimulation device |
GB2499585B (en) * | 2012-02-20 | 2014-05-07 | Cyrex Ltd | Apparatus for stimulating living tissue |
Also Published As
Publication number | Publication date |
---|---|
EP0754076A1 (en) | 1997-01-22 |
CA2187282A1 (en) | 1995-10-12 |
AU2111995A (en) | 1995-10-23 |
GB9406700D0 (en) | 1994-05-25 |
JPH09510902A (en) | 1997-11-04 |
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