RICHARD R HEUSER, M.D.
Medical Practice at Thomas Rd, Phoenix, AZ

2011019, Aug 18, 2011

Apr 21, 2011

13/092041

Richard R. Heuser - Phoenix AZ, US

A61B 17/00

128898

A system is provided for treating valvular disease percutaneously though a ventricular apex of the heart. The system includes a needle for piercing through the ventricular apex of the heart and creating a hole whereby a catheter can be passed through the skin and the wall of the heart to gain access to the interior of the heart. Once percutaneous access to the heart is obtained, any of a variety of techniques can be utilized for annular and/or valvular therapy and/or repair through, the catheter. A closure device is necessary for closing the puncture of the heart. Any of a variety of vascular closure devices can be modified to be utilized with the system to close the puncture of the ventricular apex of the heart.

6554842, Apr 29, 2003

Mar 9, 2001

09/803308

Richard R. Heuser - Phoenix AZ
Richard M. DeMello - Acton MA

Radius Medical Technologies, Inc. - Acton MA

A61F 1100

606108, 606113

A small-diameter surgical snare device that is capable of fitting through existing balloon or guiding catheters includes metal tubing along a section of a core wire. The distal end of the core wire connects to one or more snare wires that form the snaring loop. The distal end of the snaring loop supports a radiopaque coil or collar that makes the end of the loop visible under fluoroscopy. The snaring loop may consist of one or two wires or an overlap of a tapered end of the core wire. A radiopaque coil is attached to a distal end of the metal tubing, to provide flexibility and visibility to a distal region of the device. Alternatively, a polyimide tube and a short radiopaque marker may be included at a distal end of the metal tubing. The polyimide tube fits inside of the metal tubing, to add strength and torsion control to the distal region of the device, while the radiopaque marker adds visibility. In all embodiments, a shrink tube is fit over the radiopaque coil or marker that is supported by the distal end of the metal tubing, to ensure that the coil does not stretch when the snaring loop is extended during use.

2012009, Apr 19, 2012

Oct 14, 2010

12/905056

Richard R. Heuser - Phoenix AZ, US

A61F 2/01

606200

An embolism protection system is disclosed that provides a first wire having a proximal end, a distal end, and an outer diameter; a second wire having a proximal end, a distal end, an inner lumen, and an outer diameter, the inner lumen sized to accommodate the outer diameter of the first wire; a third having a proximal end, a distal end, and an inner lumen, the inner lumen sized to accommodate the outer diameter of the second wire; and a substantially conical filter device formed substantially from porous metal mesh and having a central apex, a collapsed state, and an expanded state, wherein the substantially conical filter device is adapted to couple to the second wire at or near the distal end of the second wire, the second wire passing through the central apex, and wherein the substantially conical filter device is adapted to assume the expanded state when the third wire is retracted from the distal end of the second wire, and is adapted to assume the collapsed state when the third wire is advanced over the substantially conical filter device and towards the distal end of the second wire.

8066674, Nov 29, 2011

Dec 23, 2009

12/646901

Richard R. Heuser - Phoenix AZ, US

A61M 5/178

6041641

A catheter introducer system is provided with a catheter sheath having a valve providing for a friction fit around a catheter. The friction fit is selectively adjustable to vary between a first configuration for longitudinal movement of the catheter through the valve and a second configuration for holding the catheter longitudinally in place. The valve may include a chuck to grip the catheter radially. The chuck may include an annular base and an opposed annular clamp, and a washer disposed between the base and the clamp. At least one of the base and the clamp may include a beveled surface that forces the washer radially inwardly as the base and the clamp are drawn together. The system also includes one or more dilators layered within the sheath. One or more of the dilators may include a preformed arcuate portion configured to access a targeted branched vessel. The layered dilators and sheaths are typically softer and more hydrophilic proceeding from the innermost dilator out to the sheath.

2008017, Jul 24, 2008

Apr 16, 2007

11/735734

Richard R. Heuser - Phoenix AZ, US
James D. Joye - Saratoga CA, US

A61M 25/01

604523

Disclosed is an improved pointed instrument for insertion into blood vessels where an occlusion arises or terminates too closely to the insertion site for proper sheath placement. The pointed instrument exhibits supportive characteristics that allow for a sheath to be placed in an otherwise inaccessible insertion site. One embodiment of the present disclosure features a pointed instrument having a flexible portion, which is generally straight outside the body, but agglomerates once inside a blood vessel.

8545418, Oct 1, 2013

Jan 20, 2009

12/356446

Richard R. Heuser - Phoenix AZ, US

A61B 5/00

600585

Wire systems for the ablation of occlusions within blood vessels are provided. Systems include one or more wires configured for percutaneous insertion in a blood vessel, the wires configured to ablate an occlusion within the blood vessel. In some embodiments, a wire is gradually tapered near its distal end so that it can be used to pierce occlusions. In some cases, it may be used to dilate existing microchannels within occlusions. In some embodiments, a capture device is inserted towards the occlusion from either the same or opposite side as the tapered wire, and is used to draw the wire through the occlusion.

2008016, Jul 3, 2008

Mar 18, 2008

12/050799

Richard R. Heuser - Phoenix AZ, US
James D. Joye - Saratoga CA, US

A61F 2/06

623 113, 623 123, 623 11

A catheter apparatus, tissue-engineered vessel and a method of using the tissue-engineered vessel are provided for the connection of two adjacent blood vessels. In some embodiments, the tissue engineered vessel may be affixed to a stent, or a stent may be inserted into an area to be treated first, and then the tissue-engineered vessel may be affixed to the stent. The tissue-engineered vessel may include a living adventitia, a decellularized internal membrane, and/or an endothelium.

6190379, Feb 20, 2001

Jul 14, 1998

9/115585

Richard R. Heuser - Phoenix AZ
Shinji Hara - Tokyo, JP

Sun Star Technology, Inc. - Phoenix AZ

A61B 1804

606 28

A system and method for treating a stenosis or blockage in a bodily fluid passageway is described. The system includes a catheter and a controller for generating radio frequency energy along a pair of output lines, a monitoring circuit for monitoring the phase of the radio frequency energy along the output lines, and an impedance matching circuit for adjusting the output impedance of the generator so that it equals that of a load, e. g. , the patient. The catheter includes a catheter body which is insertable into the bodily passageway and operatively connected to the controller. A lumen in the catheter body defines an opening and a stainless steel, metallic-plated mandril is disposed within the lumen so that a terminal end thereof extends through the opening and into the bodily passageway. An internal electrode is joined to the terminal end of the mandril, with the other end of the mandril operatively connected to one of the output lines for receiving the radio frequency energy produced by the generator and delivering such energy to the terminal end and the internal electrode. An external electrode in the form of a grounding pad is located externally of a patient so that when the radio frequency energy is delivered via the mandril to the internal electrode, the same causes or enables the capacitative heating of a stenosis.

6858038, Feb 22, 2005

Jun 21, 2002

10/177816

Richard R. Heuser - Phoenix AZ, US

A61F002/06

623 135, 623 111

A stent system is provided for percutaneous insertion in an artery of a main stent which includes at least one peripheral aperture defined through the stent wall. The stent system also includes a peripheral stent configured to be inserted into the peripheral aperture of the main stent. The peripheral stent extends, when inserted in the peripheral aperture, generally perpendicular to the longitudinal axis of the main stent. The stent system may further include a guidewire, insertable through the peripheral aperture, for maneuvering the main stent into place in the artery. The guidewire may be tapered toward its distal end. The stent system may also include a dilation device for dilating the peripheral stent within the peripheral aperture. The stent system may further include a tube inserted through the peripheral aperture of the main stent.