US 12,114,916 B2Granted

Catheter and handle assembly, systems, and methods

AssigneeNuvaira, Inc.

InventorsScott Harshman, Richard C. Gunderson, John Streeter, Martin L. Mayse, Mark R Bilitz, Matt Heidner, Steven P. Mertens, Larry Wales

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Abstract

A catheter and handle assembly for use in treating tissue. More specifically, the invention relates to a catheter assembly having an elongate shaft, ablation assembly coupled to one end of the shaft, and a handle coupled to the other end of the shaft. The handle facilitates both axial and circumferential positioning of the ablation assembly via the shaft in an airway, conduit, or vessel for treatment of the tissue. Embodiments include the use of a handle to facilitate the axial and circumferential positioning of the shaft and ablation assembly through and independent of a working channel of a bronchoscope during treatment for pulmonary disease like COPD and asthma.

Claims24

Dependent claims

A catheter and handle assembly configured to be coupled to a delivery device, the delivery device having a proximal working port, a distal working end, and a working channel extending between the proximal working port and the distal working end thereby defining a working length, the assembly comprising:

a catheter assembly including
an elongate shaft, and
an ablation assembly coupled to a first end of the elongate shaft, the ablation assembly comprises an expandable member having an energy emitter thereon, the expandable member being movable between a first retracted state and a second expanded state, and a coolant fluid path for circulating coolant therethrough to cool the energy emitter and/or a surface of the expandable member;
and
a handle assembly coupled to a second end of the elongate shaft, the handle assembly including
a handle frame and a control, the control being movable relative to and over the handle frame and coupled to the elongate shaft, wherein the control comprises a body positioned over the handle frame and a bearing frictionally affixed to an interior surface of the body, wherein the second end of the elongate shaft is coupled to the body, and wherein the body is configured to rotate about the handle frame via the bearing when the catheter and handle assembly is coupled to the delivery device to rotate the ablation assembly with respect to the delivery device when the expandable member is in the second expanded state, and wherein the body is configured to move axially along the handle frame to move the ablation assembly axially with respect to the delivery device between a first position and a second position, wherein the handle frame is configured to telescope into and out of the control, and
wherein a first portion of the elongate shaft is configured to extend within and through the working channel of the delivery device when the catheter and handle assembly is operably coupled to the delivery device.

4 more elements

A catheter and handle kit comprising:

a catheter and handle assembly comprising:
an elongate shaft;
an ablation assembly coupled to a first end of the elongate shaft, the ablation assembly comprises an expandable member having an energy emitter thereon, the expandable member being movable between a first retracted state and a second expanded state, and a coolant fluid path for circulating coolant therethrough to cool the energy emitter and/or a surface of the expandable member;
a handle fixed to a second end of the elongate shaft, the handle including a first portion, and a second portion axially and rotationally movable over the first portion via a bearing frictionally affixed to an interior surface of the second portion to axially and rotationally manipulate the expandable member;
and
a coupling assembly coupled to the handle and couplable to a port of a delivery device, wherein the first portion of the handle is fixed relative to the coupling assembly, and the second portion of the handle is movable relative to and over the first portion and the coupling assembly such that the second portion is configured to move the ablation assembly relative to the delivery device in an axial direction when the second portion is moved in the axial direction relative to the first portion, and a rotational direction when the second portion is rotated about the first portion with the coupling assembly remaining fixed relative to the delivery device, and wherein the first portion is configured to nest within the second portion;
and
a set of instructions configured for use with the catheter and handle assembly, the set of instructions comprising a recitation of steps including:
positioning the ablation assembly in a lumen of a subject by moving the ablation assembly through the working channel of the delivery device;
coupling the first portion of the handle to the delivery device;
and
moving the second portion of the handle while the first portion remains fixed to the delivery device so as to move the ablation assembly axially and circumferentially into a position in the lumen to administer a treatment to the subject.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/103,500Filed 12 Dec 2014 · us provisional application
Priority: 12 Dec 2013
Published: US 2016/0310210 A127 Oct 2016
Granted: 15 Oct 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification29 codes

A61B 18/1492
Probes or electrodes therefor: having a flexible, catheter-like structure, e.g. for heart ablation
A61B 1/00032
Characterised by power supply: internally powered
A61B 1/0011
Constructional details of the endoscope body: manufacturing of endoscope parts
A61B 1/00114
Connection or coupling means: electrical cables in or with an endoscope