US 10,716,461 B2Granted

Exchangeable working channel

AssigneeAuris Health, Inc.

InventorThomas R. Jenkins

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Abstract

The systems, methods, and apparatus disclosed herein are directed to an exchangeable working channel for a surgical instrument comprising a proximal portion, a distal portion, and an instrument channel configured to receive the exchangeable working channel. The exchangeable working channel may comprise a shaft comprising a proximal region and a distal region; an inner surface defining a lumen extending through the shaft; and an outer surface configured to interface with the instrument channel of the surgical instrument. The exchangeable working channel may further comprise one or more locking members configured to releasably couple to the proximal portion or the distal portion of the surgical instrument. The exchangeable working channel may increase a service life of the surgical instrument as a worn working channel can be exchanged with a new one.

Claims21

Dependent claims

A removable working channel of a surgical instrument, the surgical instrument extending from a proximal end to a distal end and having a working channel sheath configured to receive the removable working channel, the removable working channel comprising:

a shaft, comprising:
a proximal region and a distal region, the distal region of the shaft being located proximal relative to the distal end of the surgical instrument when the removable working channel is received within the working channel sheath;
an inner surface defining a lumen extending through the shaft, wherein the inner surface is configured to allow passage of a medical tool through the shaft to extend outward beyond the distal end of the surgical instrument;
and
an outer surface having a substantially circular cross-section and configured to interface with the working channel sheath of the surgical instrument, wherein a diameter of the outer surface of the shaft is substantially the same as a diameter of an inner surface of the working channel sheath;
and
a first locking member comprising a luer fit or a threaded fit component, the first locking member at the proximal region of the shaft, the first locking member configured to releasably couple to the proximal end of the surgical instrument.

4 more elements

A surgical instrument configured to receive a removable working channel, the surgical instrument comprising:

a proximal end and a distal end;
an instrument channel extending through the proximal and distal end, the instrument channel comprising:
a proximal region and a distal region;
and
a first inner surface defining a lumen extending through the instrument channel;
a working channel sheath attached to the first inner surface of the instrument channel and configured to interface with the removable working channel;
and
a first coupling member comprising a luer fit or a threaded fit component, the first coupling member at the proximal end of the surgical instrument, the first coupling member configured to releasably couple to a proximal region of the removable working channel, the removable working channel further including a distal region located proximal relative to the distal end of the surgical instrument when the removable working channel is received within the working channel sheath,
wherein the removable working channel comprises a second inner surface configured to allow passage of a medical tool through the instrument channel to extend outward beyond the distal end of the surgical instrument when the removable working channel is received within the working channel sheath, and
wherein an outer surface of the removable working channel has a substantially circular cross-section and a diameter that is substantially the same as a diameter of the first inner surface.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/975,653Filed 9 May 2018 · us provisional application
Priority: 17 May 2017
Published: US 2018/0333044 A122 Nov 2018
Granted: 21 Jul 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61B 1/018
Characterised by internal passages or accessories therefor: for receiving instruments
A61B 1/00059
Operational features of endoscopes: provided with identification means for the endoscope
A61B 1/00105
Constructional details of the endoscope body: characterised by modular construction
A61B 1/00128
Connectors, fasteners and adapters, e.g. on the endoscope handle: mechanical, e.g. for tubes or pipes