Access devices and methods for treatment of medical conditions and delivery of injectables
AssigneeCardioscout Solutions, Inc.
InventorsJames D. FONGER, Gary H. SANDERS, Jack GREELIS, Matthew Thomas YUREK
Life of this patent
Estimating the term…
Abstract
Disclosed are access devices that can be used to safely guide instruments, such as EP ablation catheters, to a therapy site such one within the pericardial space of the heart. The access devices include integrated visualization, illumination, stabilization, and safety features in a single platform that can, for example, more safely and efficiently identify and ablate several ventricular tachycardia (VT) locations on the left ventricle of the heart.
Claims34
An access device for guiding instruments to a region within a human body, the access device comprising:
- a shaft comprising a proximal end and a distal end, the shaft defining a lumen comprising channels extending longitudinally between the proximal end and the distal end, the channels comprising an instrument channel, a balloon inflation channel, and a guide wire channel;
- a head attached to the distal end of the shaft, the head comprising a top surface, a bottom surface opposite the top surface, and a port configured to allow an instrument extended through the instrument channel to interact with the region of the human body;
- a camera attached to the head and commutatively coupled to a camera cable extending through the shaft, the camera oriented to capture images of the region of the human body;
- and
- a balloon attached to the top surface of the head and in fluid communication with the balloon inflation channel, wherein the balloon is configured to expand adjacent to the top surface of the head without expanding adjacent to the bottom surface of the head.
An access device for guiding instruments to a region within a human body, the access device comprising:
- a shaft comprising a proximal end and a distal end, the shaft defining a lumen comprising channels extending longitudinally between the proximal end and the distal end, the channels comprising an instrument channel and a guide wire channel;
- a head attached to the distal end of the shaft, the head comprising a top surface, a bottom surface opposite the top surface, and a port configured to allow an instrument extended through the instrument channel to interact with the region of the human body;
- a camera attached to the head and commutatively coupled to a camera cable extending through the shaft, the camera oriented to capture images of the region of the human body;
- and
- a hinged shell attached to the top surface of the head and configured to extend upward adjacent to the top surface of the head without extending adjacent to the bottom surface of the head.
An access device for guiding instruments to a region within a human body, the access device comprising:
- a shaft comprising a proximal end and a distal end, the shaft defining a lumen comprising channels extending longitudinally between the proximal end and the distal end, the channels comprising an instrument channel and a guide wire channel;
- a head attached to the distal end of the shaft, the head comprising a top surface, a bottom surface opposite the top surface, and a port configured to allow an instrument extended through the instrument channel to interact with the region of the human body;
- a camera attached to the head and commutatively coupled to a camera cable extending through the shaft, the camera oriented to capture images of the region of the human body;
- and
- an ultrasound transducer positioned at the head and configured to determine tissue thickness or density in the region of the human body.
A method for using an access device to perform a procedure within a pericardial space adjacent a heart within a human body, the method comprising:
- inserting a guidewire through a 2 centimeter (cm) or smaller sub-xiphoid incision in the skin of the human body or via percutaneous needle and into the pericardial space;
- inserting a head of the access device into the pericardial space using the guidewire, wherein the access device comprises a shaft comprising a proximal end and a distal end, the shaft defining a lumen comprising channels extending longitudinally between the proximal end outside of the human body and the distal end attached to the head in the pericardial space;
- determining a region of the heart to treat based on a mapping of the heart determined using an ultrasound transducer positioned at the head and configured to determine tissue thickness or density;
- positioning the head of the access device adjacent the portion of the heart to treat;
- extending a portion of the access device away from a top surface of the access device to separate the portion of the heart to treat from a surrounding portion of the pericardium;
- viewing an image of the portion of the heart to treat adjacent the head of the access device, the image of the portion of the heart to treat captured by a camera at the head of the access device;
- and
- treating heart tissue in the portion of the heart to treat.
Dependencies are inferred from the claim text.