Delivery catheter including side port and electrodes

摘要

A delivery catheter, including a catheter body, a side port, a first electrode, and a second electrode, is described. The catheter body may comprise a proximal end, a distal end, and a perimeter surface. The catheter body defines a delivery lumen extending longitudinally within the catheter body. The side port is defined in the perimeter surface of the catheter body proximate the distal end and in communication with the delivery lumen. The electrodes may be adjacent to and spaced from the side port. Techniques for using the delivery catheter to identify a desired lead implantation location, e.g., via the electrodes, and implant a medical lead or other implantable element at the desired location through the delivery lumen and side port are also described.

主权项

1. A system for implanting an implantable element proximate to the His bundle, wherein the implantable element is configured for at least one of therapy delivery or sensing proximate to the His bundle, and wherein the system comprises:
a delivery catheter comprising:
a catheter body comprising a proximal end, a distal end and a perimeter surface extending along a length of the catheter body between the proximal end and the distal end, wherein the catheter body comprises a longitudinal axis and defines a delivery lumen extending along the longitudinal axis within the catheter body;a side port defined in the perimeter surface, orthogonal to the longitudinal axis, and proximate the distal end and in communication with the delivery lumen, wherein the implantable element is sized for delivery through the delivery lumen and out of the side port;a first electrode; anda second electrode, wherein each of the first and second electrodes is adjacent to and spaced from the side port; and an external device, wherein the delivery catheter comprises a connector at or near the proximal end to electrically couple the first and second electrodes to the external device, wherein the first and second electrodes are configured to obtain an electrocardiogram of the patient, wherein the external device is configured to receive the electrocardiogram from the first and second electrodes, analyze the electrocardiogram, and detect a signature waveform of the His bundle based on the analysis of the electrocardiogram, for implanting the implantable element at a location based on the detection of the signature waveform of the His bundle, and wherein the signature waveform comprises at least one of the atrial P-wave, ventricular QRS signature, and a His spike between the P-wave and QRS signature.