1
Leo A Bullara: Implantable electrode array. Huntington Institute of Applied Research, Christie Parker & Hale, March 4, 1986: US04573481 (617 worldwide citation)

An implantable helical electrode assembly configured to fit around a nerve for electrically triggering or measuring an action potential or for blocking conduction in nerve tissue. A multiconductor flexible cable connects the electrode to an implanted signal receiver, and the assembly may include mul ...


2
Leo A Bullara: Bidirectional helical electrode for nerve stimulation. Huntington Medical Research Institute, Christie Parker & Hale, May 1, 1990: US04920979 (302 worldwide citation)

A circumneural electrode assembly having a pair of spaced-apart and oppositely directed helical portions which can be opened by an insertion tool to fit the assembly over a peripheral or cranial nerve. One or more conductive electrodes on the inner surfaces of the helical portions intimately contact ...


3
Leo A Bullara: Implantable pressure transducer. Huntington Institute of Applied Medical Research, Christie Parker & Hale, November 28, 1978: US04127110 (260 worldwide citation)

A wireless, surgically implantable pressure transducer for measuring pressure of fluid or tissue in a body chamber such as a brain ventricle of a patient suffering hydrocephalus or a head injury. The transducer includes an inductor and a capacitor connected in parallel to form a resonant L-C circuit ...


4
Andrew Talalla, Leo A Bullara: Stimulation of cauda-equina spinal nerves. Christie Parker & Hale, January 6, 1987: US04633889 (177 worldwide citation)

A nerve-stimulating electrode assembly for installation within or adjacent the lower end of the dura mater to enable regaining of at least partial control over lower-body functions directed by nerves emerging from the end of the spinal cord. In one form, the electrode assembly has an internal passag ...


5
Roderick R Dunphy, Leo A Bullara, Robert H Pudenz: Implantable pressure transducer. Huntington Institute of Applied Medical Research, Christie Parker & Hale, May 25, 1976: US03958558 (81 worldwide citation)

A wireless, surgically implantable pressure transducer for measuring pressure of fluid or tissue in a body chamber such as brain ventricle of a patient suffering hydrocephalus or a severe head injury. The transducer includes a coaxial variable capacitor electrically connected across an inductor to f ...


6
Douglas B McCreery, Leo A Bullara, Stephen H Waldron: Electrode insertion tool. Huntington Medical Research Institute, Christie Parker & Hale, October 16, 2001: US06304785 (36 worldwide citation)

A tool for inserting medical electrodes such as nerve-stimulating electrodes into tissue. An electrode is positioned fully within a tip of the tool so the tip end can be placed directly against the tissue to be penetrated for precise handheld positioning. A trigger on the tool is actuated to release ...


7
Leo A Bullara, Stephen H Waldron: Controlled-depth bone cutter. Huntington Medical Research Institutes, Christie Parker & Hale, November 30, 1999: US05993453 (26 worldwide citation)

A surgical tool for controlling the depth of penetration of a cutter into bone. The tool has a tubular housing with three legs extending therefrom to provide a tripod-like support when positioned against the bone surface. A penetration-depth adjustment ring or sleeve is rotatable on the tubular hous ...


8
Ted G H Yuen, William F Agnew, Douglas B McCreery, Leo A Bullara, Marylou Ingram: Lymphocyte attraction by electrical stimulation. Huntingdon Medical Research Institutes, Christie Parker & Hale, March 14, 2000: US06038478 (13 worldwide citation)

The invention is a method of attracting lymphocytes to at least one desired location in the body of a patient for a therapeutic purpose (e.g., treating infection or inflammation, killing tumor cells, etc.), the method comprising contacting the desired location with one or more electrodes and stimula ...


9
Leo A Bullara, Douglas B McCreery: Methods for making small-diameter iridium electrodes. Huntington Medical Research Institutes, Christie Parker & Hale, June 26, 2001: US06249965 (3 worldwide citation)

Iridium electrodes of very small diameter such as 35 microns are formed from larger-diameter commercially available iridium wire by an electrolytic etching process. A saturated solution of sodium chloride in a preferred etching solution. The electrodes are formed with sharp conical tips which can be ...


10
Jean K Moore, Douglas B McCreery, Leo A Bullara, Stephen H Waldron: Electrode insertion tool. Christie Parker & Hale, April 18, 2002: US20020045927-A1

A tool for inserting medical electrodes such as nerve-stimulating electrodes into tissue. An electrode is positioned fully within a tip of the tool so the tip end can be placed directly against the tissue to be penetrated for precise handheld positioning. A trigger on the tool is actuated to release ...