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Publication numberUS2525381 A
Publication typeGrant
Publication dateOct 10, 1950
Filing dateSep 25, 1947
Priority dateSep 25, 1947
Publication numberUS 2525381 A, US 2525381A, US-A-2525381, US2525381 A, US2525381A
InventorsTower Paul
Original AssigneeTower Paul
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Contact-type electrode holder
US 2525381 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Oct. 10, 1950 I P. TOWER 2,525,331

cormc'r TYPE ELECTRODE .noppsa Filed Sept. 25, 1947 Fig.

Inventor v Paul Tower By Attorneys Patented Oct. 10,1950

UNITED ,r STATES PATENT OFFICE f V f 2,525,381 l contract-Tyre ELECTRODE HO DER 7 ram 'rew'er, Los Angelcs, Calif. Applicants s'icemta 25, 1947,- Serial No; 776,004

The present invention relates re ways and means whereby an acceptable and usable eye treatment technique known as iontophore'sis (ion ization and/or ionic medication) is followed in dispersing and applying penicillin'or other medicaments directly to' the cornea of the eye.

To those skilled in the art to which the invenof medication in the tissues of the human eye is achieved when the stated method or technique" (iontophoresis) is used. I

What is more, it is generally recognized that there are many eye electrodes, such as used in the stated technique or method, in use, these ranging from a piece of cotton wool soaked in solution and placed betweena small metal plate and the eye, to an electrode consisting of a" small cylindrical glass tube fitting over the cornea. Some technicians and doctors and workers use a plain probe rod such as for example Hamburgers electrode which, generally speaking comprises a thin carbon red, the end of which is wrapped in cotton which has been soaked in an appropriate fluid.

Manifestly, all of these electrodes are hard to handle and manipulate and require careful manipulation and, even so, are apt to cause injury to the delicate epithelium of the cornea. Since the electrodes are not mechanically or otherwise sustained in place, they must be held in position, by hand, at all times. The usual procedure requires the presence of an assistant to handle the electrical apparatus, and the doctor whose job it is to hold the electrode in its proper position in relation to the cornea during the accomplishment of the medication technique.

An object of the present invention is to provide an electrode holder in the form of a contact lens which fits into the human eye in contact with the eyeball and which is so constructed that when once installed, it remains in place as Repeated experimentacontact lens, stays in direct contact with the eyeball and therefore moves with the eye, thus obviating'the likelihood that the electrical circuit will be broken when on. V

The principal object is to provide a simple and practical electrode holder in the form of an adaptor carried by a contact-type lens which sufficiently holds the electrodethat the assistant may be dispensed with and 'a doctor mayoperate an appropriate and reliable holder for an 'electhe electrical apparatus.

7 Another object of the invention is to providea contact-type holder which is made of plastic to act as an insulator and to minimize likelihood of breakage'and to also provide a lightweight struc' ture free from pressure and irritational tendencies.

Other objects and advantages will become more readily apparent from the following description and the accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate like parts throughout the views:

Figure 1 is a sectional view of an electrode I holder constructed in accordance 'with the princip'lesof the invention and showing the manner in which the same, in practice, is used;

Figure 2 is a front elevationalvi'ew of whatis seen from left to right in Figure 1;

Figure 3 is a central vertical sectional viewthrough the device removed from the eye; and 1*"i'gure 4 is an enlarged fragmentary sectional View to bring out certain other details.

The electrode holder is a unitary appliance,

as denoted by the numberal 6 and is primarily made up of plastic or an aquivalent light weight, durable insulating material. It is characterized primarily by a substantially semi-spherical cup 1 which resembles an ordinary contact lens and which is suitably concavo-convex in form to fit into the human eye A in proper relation to the cornea B of the eyeball C, as shown for example in Figure 1. The crown portion which may be said to be the corneal part of the cup is formed with a concavo-convex boss 8 and this forms a shallow cavity or receptacle 9 for the medicament (penicillin or whatever is to be used for cornea treatment), The receptacle forming boss 9 is provided with a centrally situated aperture permitting access to the cornea and this in turn is formed with an outstanding sleeve-like extension I!) which constitutes an adaptor socket for the silver electrode H. The electrode has a shank portion fitting in the adapter sleeve and has its inner end provided with a concaved head I2 forming an assembling flange. The other end.

. 4 convex boss forming a medicament receptacle, and the crown portion of said boss having an outstanding tubular extension, said extension being adapted to serve as a holding socket for an electrode, an electrode situated in said socket, said electrode having an eye at its outer end to accommodate a current supply wire, and having a headed portion on its inner end projecting into said boss to contact the medicament to be held cornea. In rare extreme cases like in keratoconus, a lens with a 6.5 mm. corneal curve can be used or in very high myopias a 8.0 mm. corneal curve is used. In use the cup I is inserted under the patients lids in the usual way used in insert-- ing ordinary contact lenses. The extension serves not only to hold the metal electrode in place, but acts as an insulator. Otherwise, the patients lid would strike against the metal when the current is on, giving not only electric shocks to the patient, but causing the intensity of the current to fluctuate. The electrode is made from silver. It is slightly countersunk on the inner surface of the corneal portion, so as to present an even surface and projects through the sleeve, ending in a small eye. vanic, machine (not shown) is inserted and looped through this ring making a simple and sufficient connection. Thus the current travels through the electrode and is conveyed into the medication contained in the corneal portion. This solution being in contact with the cornea, ionization (or iontophoresis) takes place and the medication is thus enabled to enter the cornea and tissues of the eye according to the established principles underlying ionization treatment.

A careful consideration of the foregoing description in conjunction with the invention as illustrated in the drawings will enable the reader to obtain a clear understanding and impression of the alleged features of merit and novelty sufficient to clarify the construction of the invention as hereinafter claimed.

Minor changes in shape, size, materials and rearrangement of parts may be resorted to in actual practice so long as no departure is made from the invention as claimed.

I claim:

' 1. An eye appliance for use in connection with ionic medication technique comprising a substantially semi-spherical plastic contact cup adapted to be suction fitted in direct contact with an eyeball, the axial portion of said cup being provided with an outstanding concavo- The wire from the gal-,

in the latter.

2. An eye appliance for use by an eye doctor during an ionic medication treatment of a patients eye, said appliance being self-sustained when it is once inserted into the patients eye and obviating holding of same either by the doctor or an assistant comprising a concavo-convex medicament holding applicator having a marginally surrounding concavo-convex flange adapted to rest directly against the eyeball of the patient and to be held partly by suction and to reside beneath the eyelids and to be partly held in place by said eyelids, and an electrode carried by said applicator, said electrode being spaced clear of the cornea of the eye when in use and adapted to contact the medicament in said applicator.

3. An eye appliance for use by an eye doctor employing ionic medication techniques compris ing arelatively small concavo-convex medicament containing receptacle having a central aperture and an outstanding tubular extension constituting an electrode receiving and holding socket, and means for holding said receptacle in spaced opposed relation to the cornea of the eye, said means being an annular flange attached marginally to the receptacle and shaped to fit in direct contact with the eyeball of the user and being sufficiently thin to fit beneath the eyelids of the user whereby to utilize the eyelids and suction to hold said flange in place and consequently to position and hold said medicament receptacle in place, and an electrode fitted in said socket and having a headed inner end anchored in the receptacle and its outer end located for connection thereto of a current delivering wire.

PAUL TOWER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Number Date

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3122137 *Oct 30, 1961Feb 25, 1964Gustav ErlangerDevice for facilitating iontophoresis treatment of eyes
US3485244 *Dec 15, 1966Dec 23, 1969Hyman RosenEye applicator
US3670736 *Jul 17, 1970Jun 20, 1972Health Systems IncTherapeutic instrumentation electrode
US4109648 *Dec 15, 1976Aug 29, 1978National Research Development CorporationElectrode assemblies
US4271841 *Jan 31, 1980Jun 9, 1981Medtronic, Inc.Electro-ocular stimulation system
US4326529 *Dec 5, 1979Apr 27, 1982The United States Of America As Represented By The United States Department Of EnergyCorneal-shaping electrode
US4564016 *Aug 13, 1984Jan 14, 1986The Board Of Trustees Of The Leland Stanford Junior UniversityApparatus for introducing ionized drugs into the posterior segment of the eye and method
US4603697 *Jan 7, 1985Aug 5, 1986William KamerlingSystem for preventing or treating open angle glaucoma and presbyopia
US4881543 *Jun 28, 1988Nov 21, 1989Massachusetts Institute Of TechnologyCombined microwave heating and surface cooling of the cornea
US4955378 *Jan 17, 1989Sep 11, 1990University Of South FloridaApparatus and methods for performing electrofusion at specific anatomical sites
US6001088 *Dec 4, 1995Dec 14, 1999The University Of QueenslandIontophoresis method and apparatus
US6101411 *Sep 24, 1998Aug 8, 2000Newsome; David A.Dilation enhancer
US6154671 *Jan 4, 1999Nov 28, 2000OptisinvestDevice for the intraocular transfer of active products by iontophoresis
US6319240 *May 25, 1999Nov 20, 2001Iomed, Inc.Methods and apparatus for ocular iontophoresis
US6539251Aug 3, 2001Mar 25, 2003Iomed, Inc.Ocular iontophoretic apparatus
US6546283Oct 18, 2000Apr 8, 2003Iomed, Inc.High current density iontophoretic device and method of use thereof
US6728573Jun 22, 2000Apr 27, 2004Iomed, Inc.Ocular iontophoretic apparatus handle
US7151960Aug 8, 2000Dec 19, 2006Newsome David ADilation enhancer with pre-mediated contact lenses
US7192429Dec 8, 2003Mar 20, 2007The Trustees Of Dartmouth CollegeThermokeratoplasty systems
US7252655Aug 3, 2001Aug 7, 2007Iomed, Inc.Ocular iontophoretic apparatus handle
US7377917Dec 9, 2002May 27, 2008The Trustees Of Dartmouth CollegeFeedback control of thermokeratoplasty treatments
US7713268Mar 19, 2007May 11, 2010The Trustees Of Dartmouth CollegeThermokeratoplasty systems
US7981062Oct 9, 2009Jul 19, 2011Imi Intelligent Medical Implants AgMechanically activated objects for treatment of degenerative retinal disease
US8099162Jan 17, 2012Eyegate Pharma, S.A.S.Ocular iontophoresis device
US8348936Oct 31, 2007Jan 8, 2013The Trustees Of Dartmouth CollegeThermal treatment systems with acoustic monitoring, and associated methods
US8452391May 28, 2013Eyegate Pharma S.A.S.Ocular iontophoresis device
US8480638 *Oct 4, 2007Jul 9, 2013Aciont, Inc.Intraocular iontophoretic device and associated methods
US8923961May 13, 2011Dec 30, 2014The Cleveland Clinic FoundationElectrode assembly for delivering a therapeutic agent into ocular tissue
US20020022794 *Aug 3, 2001Feb 21, 2002Beck Jon E.Ocular iontophoretic apparatus handle
US20040111086 *Dec 9, 2002Jun 10, 2004Trembly B. StuartFeedback control of thermokeratoplasty treatments
US20040143250 *Dec 8, 2003Jul 22, 2004Trembly B. StuartThermokeratoplasty systems
US20050004625 *Jun 9, 2004Jan 6, 2005Chow Alan Y.Treatment of degenerative retinal disease via electrical stimulation of surface structures
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Classifications
U.S. Classification604/20, 607/141, 351/159.2
International ClassificationA61N1/04, A61F9/00, A61N1/30
Cooperative ClassificationA61F9/0017, A61N1/30, A61N1/044
European ClassificationA61N1/04E1I1S, A61F9/00B2, A61N1/30