Walter T Kusumoto

US Patent:

20190183588, Jun 20, 2019

Filed:

Feb 22, 2019

Appl. No.:

16/282835

Inventors:

Walter Kusumoto - Chico CA, US

International Classification:

A61B 34/20
A61B 8/12
A61B 8/00
A61B 8/14
A61B 18/14

Abstract:

An intracardiac ultrasound catheter or other intravascular imaging tool is provided with an adapter to allow the imaging tool to be used both subcutaneously and supracutaneously, and especially at different stages of a single intravascular procedure. The adapter covers a tip of the imaging tool and preferably includes an echogenic window to facilitate gathering of ultrasound images through this window in the adapter. With the adapter in place, the intracardiac ultrasound can be used supracutaneously, such as at a femoral artery/vein location for imaging to improve vascular access, such as with an appropriate percutaneous needle. The adapter is then removed and the same imaging tool can be inserted percutaneously and intravascularly for use, such as in intracardiac imaging accompanying and intracardiac procedure. The intracardiac ultrasound probe is preferably coupled to an electrophysiology mapping system both when used supracutaneously and when used intravascularly.

US Patent:

20180132754, May 17, 2018

Filed:

Dec 21, 2017

Appl. No.:

15/851415

Inventors:

Walter Kusumoto - Chico CA, US

International Classification:

A61B 5/06
A61B 5/042
A61B 5/00

Abstract:

An electrophysiology mapping system is provided with modules which can be attached thereto, each module including an item of subcutaneous interventional equipment and information about the item of subcutaneous interventional equipment, including shape information and size information. At least one sensor is placed upon the item of subcutaneous interventional equipment at a known location thereon. This sensor allows for position, and also preferably orientation, of the item within an image presented on a display of the electrophysiology mapping system. The at least one sensor can be at least one electrode or two or more electrodes, with different known positions for the electrode, or electrodes. The at least one sensor can be one or more magnetic field sensors interacting with a magnetic field associated with the electrophysiology mapping system. Transthoracic ultrasound fitted with sensors thereon can also be utilized as a further module attachable to the electrophysiology mapping system.

US Patent:

20180132755, May 17, 2018

Filed:

Nov 15, 2017

Appl. No.:

15/813717

Inventors:

Walter Kusumoto - Chico CA, US

International Classification:

A61B 5/06
A61B 5/042
A61B 8/08
A61B 5/044
A61B 8/00
A61B 17/34
A61B 34/20
A61B 7/04
A61B 5/00

Abstract:

An electrophysiology mapping system utilizes multiple surface electrodes on a body of a patient for visualization of internal bodily structures, and especially cardiac structures. Some such systems can further utilize a magnetic field source adjacent to the patient for internal bodily structure visualization. In place of an intra-cardiac electrode or other intra-cardiac sensor, an echo probe is utilized external to the body. The electrode or other sensor on the echo probe is spaced a known distance from a sound wave detector, such as a piezoelectric crystal which also generates sound waves, the sensor assisting in correlating echo probe sensed patient structural data with patient structural data otherwise gathered by the EP mapping system. This data is integrated together for visualization on the EP mapping display without requiring an intra-cardiac electrode or other intra-cardiac sensor.

US Patent:

20180117306, May 3, 2018

Filed:

Oct 19, 2017

Appl. No.:

15/788442

Inventors:

Walter Kusumoto - Chico CA, US

International Classification:

A61N 1/05

Abstract:

A lead wire associated with a pacemaker, implantable cardiac defibrillator or other cardiac electric signal source is provided with a protector tube overlying at least a portion of the lead wire. In one embodiment, this protector tube is provided as a sheath tube portion of a sheath assembly along with a valve body. The valve body of the sheath assembly is fracturable and removable away from the sheath tube, leaving the sheath tube upon the lead wire as a protector tube. In other embodiments, a separate protector tube is provided and fed over the lead wire and through a sheath assembly until placed where desired. A grommet and/or plug can be provided at a proximal end of the protector tube for anchoring of the protector tube in a desired location and for plugging the protector tube, while also accommodating the lead wire passing therethrough.

US Patent:

20180078172, Mar 22, 2018

Filed:

Sep 22, 2017

Appl. No.:

15/713307

Inventors:

Walter Kusumoto - Chico CA, US

International Classification:

A61B 5/06
A61B 5/00

Abstract:

The pericardiocentesis needle is fitted with sensors, such as at least one electrode or at least one magnetic field sensor, and preferably both a proximal and a distal electrodes or multiple magnetic field sensors. These electrodes or other sensors are coupled to an electrophysiology mapping system configured to display cardiac structures on a display. The electrodes or other sensors on the needle cause a position, and preferably also orientation, of the needle, and especially the tip of the needle, to be visualized on a display of the electrophysiology mapping system, in accurate position relative to adjacent cardiac structures. In other embodiments other transcutaneous devices such as dilators and sheaths can be similarly fitted with electrodes or other sensors for visualization of such other devices within a display of an EP mapping system.