Michael Jonathan Dollar

US Patent:

20090076439, Mar 19, 2009

Filed:

Sep 14, 2007

Appl. No.:

11/855840

Inventors:

Michael L. Dollar - Garland TX, US
Thomas Dietzman - Arlington TX, US

International Classification:

A61M 25/10
A61M 29/04

US Classification:

604 28, 604 9703

Abstract:

The present invention is directed towards an inflation system for a balloon catheter that automatically determines and outputs a balloon diameter. The present invention is also directed towards an inflation system that automatically controls the surgical procedure using the balloon diameter.

US Patent:

20090076446, Mar 19, 2009

Filed:

Sep 14, 2007

Appl. No.:

11/855976

Inventors:

Michael L. Dollar - Garland TX, US

Assignee:

QUEST MEDICAL, INC. - Allen TX

International Classification:

A61M 25/10

US Classification:

604 9601

Abstract:

The improved balloon catheter includes a first tubular segment, which has multiple zones of differing malleability along its length. The catheter further includes a coaxially aligned hypotube formed of a malleable material, which is positioned within the lumen of the first tubular segment and extends from the distal end of the first tubular segment. In one embodiment the hypotube runs the length of the first tubular segment; while in another embodiment, the hypotube runs along only a portion of the length of the first tubular segment. A portion of the outer circumferential surface of the hypotube is permanently affixed and sealed to an inner circumferential surface of the first tubular segment in the vicinity of the distal end of the first tubular segment. The outer circumference of the distal end of the first tubular segment is gently tapered along its length so as to smoothly transition to the circumference of the hypotube. The hypotube terminates with an atraumatic tip and includes a balloon dilator affixed near the tip. An aperture near the tip of the hypotube fluidly connects the interior of the balloon with the lumen of the hypotube enabling the balloon to selectively expand and contract.

US Patent:

20090088728, Apr 2, 2009

Filed:

Sep 28, 2007

Appl. No.:

11/864124

Inventors:

Michael L. Dollar - Garland TX, US

International Classification:

A61M 25/01

US Classification:

604528

Abstract:

The present invention is directed towards a malleable sleeve used in conjunction with a multi-lumen catheter with an expandable device, such as a balloon, incorporated into its surface. The malleable sleeve allows the catheter to be pre-formed into a shape that corresponds with the shape of the nasal passageway. The present invention also covers endoscopic surgical methods utilizing the malleable sleeve.

US Patent:

20130190717, Jul 25, 2013

Filed:

Sep 13, 2012

Appl. No.:

13/613705

Inventors:

Michael L. Dollar - Garland TX, US
Cristo Suresh Corera - McKinney TX, US
Kenneth A. Jones - McKinney TX, US

Assignee:

QUEST MEDICAL, INC. - Allen TX

International Classification:

A61M 5/172
G09B 23/28

US Classification:

604505, 604507, 604151, 434262, 604503

Abstract:

A microplegia console for controlling the delivery of cardioplegia to a patient, comprising an integrated display/touch screen for displaying cardioplegia information and patient information and allowing inputting of parameters via the display/touch screen into the console for computer-controlled perfusion of cardioplegia into the patient. The invention further comprises a method for delivery of cardioplegia to a patient, including defining and selecting a protocol from a displayed list and sequencing a series of the protocols. The invention also comprises a method for cardioplegia delivery to achieve aortic valve closure. Additionally, the invention comprises a method for activating an icon whereby, upon a first selection of the icon, displaying an indicia indicating that the icon has been first selected; and upon a second selection of the icon, activating the icon.

US Patent:

20070100363, May 3, 2007

Filed:

Oct 27, 2005

Appl. No.:

11/260639

Inventors:

Michael Dollar - Garland TX, US
Victor Dubuclet - Dallas TX, US
David Ernst - Allen TX, US

International Classification:

A61B 17/32

US Classification:

606181000

Abstract:

A system for making a precise incision and circular hole in a vessel wall, such as the aorta, that eliminates lateral side notches from the aortotomy. In one aspect, the system includes a surgical knife or lancet having a blade surrounded by a retractable shield. In one aspect, the system includes a tissue punch having a rotating circumferential edge for receiving a parabolic-shaped anvil having an anvil cutting edge. The anvil is placed through an incision made by a knife and actuated to produce a hole in the vessel wall.