Tomasz J Petelenz
Hearing Aid Provider in Salt Lake City, UT

5374241, Dec 20, 1994

Apr 7, 1993

8/045040

Lindsay B. Lloyd - West Jordan UT
Jon E. Beck - Salt Lake City UT
Tomasz J. Petelenz - Salt Lake City UT
Clay H. Holt - Riverton UT
William F. Felman - West Valley City UT

Iomed, Inc. - Salt Lake City UT

A61N 130

604 20

An improved electrode is disclosed for use in administering drug by means of iontophoresis, comprising a conductive element for receiving an electric current from a current source; a reticulated element having a plurality of reticulum for receiving an ionic drug solution for iontophoretic delivery, the reticulum being loaded or having applied thereto a hydrophilic polymer which is viscous when hydrated; and means for securing the reticulated element to the conductive element so that electric current will be distributed substantially uniformly through the reticulated element when hydrated and when current is delivered to the conductive element. The presently preferred embodiment utilizes open cell polyurethane foam as the reticulated element and high molecular weight polyethylene oxide as the hydrophilic polymer. The reticulum is further loaded with Tween 20, a surfactant, which serves to improve the rate of hydration. A reticulated element formed in accordance with the present invention is pliable and conformable both when in wet or dry state, making an electrode formed in accordance with the present invention susceptible of a wide variety of shapes and sizes and relatively easy to manufacture at reasonably low cost.

5328455, Jul 12, 1994

Mar 29, 1993

8/038798

Lindsay B. Llyod - West Jordan UT
Jon E. Beck - Salt Lake City UT
Tomasz J. Petelenz - Salt Lake City UT

Iomed, Inc. - Salt Lake City UT

A61N 130

604 20

A hydratable iontophoretic bioelectrode including a plurality of layers of material capable of absorbing and holding an ionized fluid when placed in contact with the fluid. In one embodiment, a layer of a highly crosslinked dry hydrogel is used with a second layer of a more lightly crosslinked dry hydrogel. When the lightly crosslinked hydrogel layer is located so as to be in contact with the skin during iontophoresis, the medicament ions will be concentrated next to the skin. When the more highly crosslinked layer is located next to the conductive member, the undesirable effects of hydrolysis or corrosion of the conductive member are lessened. In another embodiment, adjacent layers are maintained at least partially out of contact from one another so as to improve the rate of hydration by disposition between the layers of spacing elements such as sugar or other dissolvable particles or cellulose or by forming a three dimensional pattern thereon.

6223075, Apr 24, 2001

Dec 9, 1996

8/762051

Jon E. Beck - Salt Lake City UT
Lindsay B. Lloyd - West Jordan UT
Tomasz J. Petelenz - Salt Lake City UT

Iomed, Inc. - Salt Lake City UT

A61N 130

604 20

The present invention provides methods and apparatus permitting rapid and thorough hydration of an initially dry hydratable matrix element contained within an iontophoretic bioelectrode. The apparatus of the invention comprises a bioelectrode system for iontophoretic delivery of medicaments having at least one hydratable matrix element and associated removable hydration assembly. The preferred embodiment of the present invention comprises two hydratable matrix elements each having an associated removable hydration assembly and each being associated with an electrical current distribution element. The removable hydration assembly includes an initially sealed liquid-storage component which maintains the desired hydrating liquid in isolation from the hydratable matrix element until such time as hydration is desired. At that time, the removable hydration assembly can be activated by the user through application of force to an extending tab member attached to the sealed liquid-storage component thereby causing progressive unsealing of the sealed liquid-storage component and progressively depositing the hydrating liquid uniformly onto the entire surface of the hydratable matrix element. Following hydration of the matrix element, the spent hydration assembly can be withdrawn completely from within the bioelectrode system.

4752285, Jun 21, 1988

Mar 19, 1986

6/841329

Tomasz J. Petelenz - Salt Lake City UT
Robert L. Stephen - Salt Lake City UT
Stephen C. Jacobsen - Salt Lake City UT

The University of Utah Research Foundation - Salt Lake City UT

A61N 130

604 20

Methods and apparatus for administering known quantities of medicaments by iontophoresis while avoiding burns caused by extremes in the pH of the medicament medium during passage of an electric current are disclosed. It has been found that, as iontophoresis progresses in conventional iontophoresis systems, the electrolysis of water occurs to produce hydrogen or hydroxyl ions at the interface of the electrode and medicament medium. Since these ions are highly mobile, they are transported directly into the skin of patient in preference to the larger medicament ions. Thus, extreme changes in pH are experienced which result in burns due to the acidification or alkalinization of the medicament medium and passage of electric current through the skin. The present invention also avoids the production of other competing ions by employing a reactive electrode. The electrode and the medicament are chosen such that the electrode will react with the complementary ion (the ion which forms upon the dissociation of the medicament in solution) to form an insoluble material.

8191421, Jun 5, 2012

Nov 6, 2008

12/266144

Tomasz J. Petelenz - Salt Lake City UT, US
Stephen C. Jacobsen - Salt Lake City UT, US

Raytheon Company - Waltham MA

G01H 1/00

73579, 73 1101

Methods and devices for a miniature, ultra-low power impact recorder for detecting, quantifying and recording the energy of an explosive blast or ballistic projectile impact. In one embodiment, the impact recorder can included a sensor comprised of an array of electromechanical resonators that is sensitive to the vibrations produced in selected, discrete frequency ranges that approximate the spectral signature characteristics of the shockwave resulting from the ballistic impact event, even after traveling through impacted material or body tissues.

5037380, Aug 6, 1991

Aug 23, 1990

7/572477

Stephen C. Jacobsen - Salt Lake City UT
Tomasz J. Petelenz - Salt Lake City UT
Jon Beck - Salt Lake City UT
Robert L. Stephen - Salt Lake City UT

Iomed, Inc. - Salt Lake City UT

A61N 130

604 20

An iontophoretic bioelectrode includes a pouch for holding a solution, a receptacle element disposed in a wall of the pouch to allow communication therethrough from the exterior to the interior of the pouch, a pair of elongate, generally parallel prongs joined at one end and dimensioned to allow insertion thereof through the receptacle element into the interior of the container, and a solution absorbing material disposed between the prongs to absorb solution with which it makes contact.

5236412, Aug 17, 1993

Dec 14, 1990

7/627714

Lindsay B. Lloyd - West Jordan UT
Jon E. Beck - Salt Lake City UT
Tomasz J. Petelenz - Salt Lake City UT
Stephen C. Jacobsen - Salt Lake City UT

Iomed, Inc. - Salt Lake City UT

A61N 130

604 20

A hydratable iontophoretic bioelectrode includes a plurality of layers of material capable of absorbing and holding an ionized fluid when placed in contact with the fluid. Adjacent layers are maintained at least partially out of contact from one another by disposition between the layers of spacing elements such as sugar or other dissolvable particles or cellulose. The edges of the layers may be crimped to maintain the layers in a stack for assembly with an electrode sheet; such a sheet would be provided for receiving an electrical current to thereby produce an electric field and cause a migration of ions of the ionized fluid away from the electrode sheet and into the skin or tissue of a person or animal against which the bioelectrode is placed.

8056391, Nov 15, 2011

May 7, 2008

12/116605

Tomasz J. Petelenz - Salt Lake City UT, US
Stephen C. Jacobsen - Salt Lake City UT, US

Raytheon Company - Waltham MA

G01L 5/00

73 1101, 73579

Methods and devices for a miniature, ultra-low power impact recorder for detecting, quantifying and recording the energy of an explosive blast or ballistic projectile impact. In one embodiment, the impact recorder can included a sensor comprised of an array of electromechanical resonators that is sensitive to the vibrations produced in selected, discrete frequency ranges that approximate the spectral signature characteristics of the shockwave resulting from the ballistic impact event, even after traveling through impacted material or body tissues.

5087242, Feb 11, 1992

Jul 21, 1989

7/383939

Tomasz J. Petelenz - Salt Lake City UT
Stephen C. Jacobsen - Salt Lake City UT
Robert L. Stephen - Salt Lake City UT
Jon Beck - Salt Lake City UT
Jin Shimada - Falcon Heights MN

Iomed, Inc. - Salt Lake City UT

A61N 130

604 20

A hydratable iontophoretic bioelectrode includes a layer of material for absorbing and holding an ionized fluid when placed in contact with the fluid. A conductive sheet of material is positioned in contact with one side of the layer of material and is connectable to an electrical charged source to receive a charge of the same polarity as the polarity of ions in the fluid. A support base holds the layer of material and conductive sheets in place to enable placement of the layer of material against the skin or tissue of a person into which ions from the ionized fluid are to be delivered. This is carried out by applying the charge in question to the conductive sheet to cause the ions in the layer of material to migrate therefrom into the person's skin or tissue.

7727180, Jun 1, 2010

May 17, 2007

11/804592

Stephen C. Jacobsen - Salt Lake City UT, US
Shane Olsen - Centerville UT, US
Tomasz J. Petelenz - Salt Lake City UT, US

Sterling Investments LC - Salt Lake City UT

A61M 31/00

604 65, 604 67

Techniques for control of fluid delivery from a fluid reservoir by a medical infusion pump are described. Setting of at least one electronically-controllable pumping parameter is determined by the use of one or more mechanical keys. The mechanical key actuates one or more electronic switches of a mechanical key receptacle coupled to the medical infusion pump. The electronic switches are coupled to the medical infusion pump to control the at least one electronically-controllable pumping parameter. Keys can be differently configured to actuate different switches corresponding to particular settings and can include display indicia showing the particular parameter value set by the key.