Electrosurgical device with automatic shut-off

Patent metadata

Field	Value
Publication number	US-12588947-B2
Application number	US-202117918656-A
Country	US
Kind code	B2
Filing date	May 6, 2021
Priority date	May 11, 2020
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

A method and apparatus are disclosed for creating a puncture in a tissue. The assembly includes a puncturing device having a distal tip configured to deliver energy to the tissue, creating the puncture. The puncturing device further includes a marker positioned along the puncturing device. The assembly further includes a dilator which has a lumen extending from a proximal portion to a distal portion and configured to receive the puncturing device. The dilator further comprises a sensor positioned along a length of the dilator. When the marker and the sensor are aligned, energy is delivered to the distal tip of the puncturing device.

First claim

We claim:

1 . An assembly to create a puncture in a tissue, comprising:
a puncturing device comprising an elongate member having a distal tip configured to deliver energy to the tissue, creating the puncture; the puncturing device further comprises a first element positioned along the elongate member; a dilator wherein the dilator comprises a lumen extending from a proximal portion to a distal portion and configured to receive the puncturing device; and, the dilator further comprises a second element positioned along a length of the dilator; wherein:
one of the first element and the second element is configured to send a signal to a generator when the first element and the second element are aligned, the signal being configured to enable energy delivery from the generator to the distal tip of the puncturing device; and
absence of the signal disables energy delivery from the generator to the distal tip of the puncturing device.

2 . The assembly of claim 1 , wherein the first element is either a marker or a detector while correspondingly the second element is either the detector or the marker respectively.

3 . The assembly of claim 2 , wherein the elongate member comprises a coating of insulative material.

4 . The assembly of claim 2 , wherein the marker is a band with a barcode and the detector is a barcode reader.

5 . The assembly of claim 2 , wherein the marker is a band of a distinct surface roughness and the detector is a light intensity sensor.

6 . The assembly of claim 2 , wherein the marker is a magnetic band and the detector is a magnetic sensor.

7 . The assembly of claim 2 , wherein the marker is a metal band and the detector is a capacitance proximity sensor.

8 . The assembly of claim 2 , wherein the detector is embedded into a wall of the dilator.

9 . The assembly of claim 2 , wherein the marker is a colour band and the detector is a colour sensor.

Assignees

• Boston Scientific Medical Device Limited

Inventors

• Dicicco Matthew
• Davies Gareth
• Urbanski John Paul
• Moriyama Eduardo
• Ryan Patrick
• Mok Daniel Wing Fai
• Tyler Brandon

Classifications

• A61B2018/00625

  Vaporization · CPC title

• A61B2018/00357

  Endocardium · CPC title

• A61B2018/00107

  Coatings on the energy applicator · CPC title

• A61B2018/00083

  low, i.e. electrically insulating · CPC title

• A61B2090/062

  penetration depth · CPC title