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US 2026/0224850 A1Published application
Steer mechanisms and independent tip rotation for catheters
OwnerWyatt Griffin, Sreekanth Reddy Rampa +3inventors
InventorsWyatt Griffin, Sreekanth Reddy Rampa, Audrey Vu, Michael Govea, Jasson Rodriguez
Life of this patent
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Abstract
Disclosed herein are assemblies that allow for 4-way steering of a catheter tip, independent tip rotation, detent features for a home position, and/or auto-lock features. An example assembly may be at least partially disposed in a handle assembly of a catheter. The example assembly may control deflection of a catheter tip.
Claims20
An assembly for controlling one or more of a deflection and rotation of a medical tool, the assembly comprising:
- an elongate shaft having a flange disposed adjacent a proximal end thereof;
- a first control knob having a first main body and a first aperture formed in the first main body configured to receive the elongate shaft therethrough;
- a second control knob having a second main body and a second aperture formed in the second main body configured to receive the elongate shaft therethrough;
- a first pin carrier having a first carrier body and a first carrier aperture formed in the first carrier body configured to receive the elongate shaft therethrough;
- a second pin carrier having a second carrier body and a second carrier aperture formed in the second carrier body configured to receive the elongate shaft therethrough;
- a plurality of pins disposed partially within the first pin carrier and disposed partially within the second pin carrier;
- and
- a plurality of pull lines disposed through at least a portion of the elongate shaft and extending external to the elongate shaft about one or more of the plurality of pins, wherein at least a first pull line of the plurality of pull lines is coupled to the first control knob and configured to move in response to an adjustment of the first control knob, wherein at least a second pull line of the plurality of pull lines is coupled to the second control knob and is configured to move in response to an adjustment of the second control knob, and wherein the plurality of pins are configured to apply tension to at least one of the first pull line or the second pull line.
5 more elements
An assembly for controlling one or more of a deflection and rotation of a medical tool, the assembly comprising:
- an elongate shaft having a flange disposed adjacent a proximal end thereof;
- a first control knob having a first main body and a first aperture formed in the first main body configured to receive the elongate shaft therethrough, wherein the first control knob comprises a first keyed feature configured for a first knob cover, and wherein the first control knob comprises a first anchor;
- a second control knob having a second main body and a second aperture formed in the second main body configured to receive the elongate shaft therethrough, wherein the second control knob comprises a second keyed feature configured for a second knob cover, and wherein the second control knob comprises a second anchor;
- a first pin carrier having a first carrier body and a first carrier aperture formed in the first carrier body configured to receive the elongate shaft therethrough;
- a second pin carrier having a second carrier body and a second carrier aperture formed in the second carrier body configured to receive the elongate shaft therethrough;
- a plurality of pins disposed partially within the first pin carrier and disposed partially within the second pin carrier;
- and
- a plurality of pull lines disposed through at least a portion of the elongate shaft and extending external to the elongate shaft about one or more of the plurality of pins, wherein at least a first pull line of the plurality of pull lines is coupled to the first anchor and configured to move in response to an adjustment of the first control knob, wherein at least a second pull line of the plurality of pull lines is coupled to the second anchor and is configured to move in response to an adjustment of the second control knob, and wherein the plurality of pins are configured to apply tension to at least one of the first pull line or the second pull line.
5 more elements
An assembly for controlling one or more of a deflection and rotation of a medical tool, the assembly comprising:
- an elongate shaft having a flange disposed adjacent a proximal end thereof;
- a first control knob having a first main body and a first aperture formed in the first main body configured to receive the elongate shaft therethrough;
- a second control knob having a second main body and a second aperture formed in the second main body configured to receive the elongate shaft therethrough;
- a first pin carrier having a first carrier body and a first carrier aperture formed in the first carrier body configured to receive the elongate shaft therethrough;
- a second pin carrier having a second carrier body and a second carrier aperture formed in the second carrier body configured to receive the elongate shaft therethrough;
- a plurality of pins disposed partially within the first pin carrier and disposed partially within the second pin carrier;
- and
- a plurality of pull lines disposed through at least a portion of the elongate shaft and extending external to the elongate shaft about one or more of the plurality of pins, wherein at least a first pull line of the plurality of pull lines is configured to move in response to an adjustment of the first control knob, wherein at least a second pull line of the plurality of pull lines is configured to move in response to an adjustment of the second control knob, and wherein the plurality of pins are configured to apply tension to at least one of the first pull line or the second pull.
5 more elements
Dependencies are inferred from the claim text.