Device for aiding in the positioning and anchoring of an endoscope during gastrointestinal procedures
Inventors
Bagwell, Roger B • Higgins, Timothy J • Hopkins, Eric J • Scruggs, Casey A • Snook, Kevin A
Assignees
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Publication Number
US-11369399-B2
Publication Date
2022-06-28
Expiration Date
Abstract
A device for engaging tissue includes a body disposable around the distal end of a medical instrument, such as an endoscope, and a handpiece. The body includes a primary channel for receiving the medical instrument and at least one arm channel for receiving an arm therethrough. At least one arm extends through the arm channel of the body and proximally to the handpiece. The arm includes an engagement member distally of the body, and may further include a bend between the body and engagement member. The engagement member is movable between a first position not contacting tissue and a second position contacting tissue. With multiple engagement members, the engagement members are farther apart from one another in the first position and closer together in the second position. Movement of the engagement members is controlled by selective and independent movement of the corresponding arms by rotational and/or translational motion.
Core Innovation
The invention relates to a device for engaging tissue using an endoscope for GI procedures. The device includes a distal end and a proximal end, and a body having a primary channel configured to selectively receive and restrain a distal end of an endoscope. The body is configured to be completely circumferentially disposed about the working end of the endoscope when attached, forming a distal end that is selectively affixed to the endoscope while surrounding the working end.
At least one arm channel extends through the body and receives at least one arm. The at least one arm extends from the proximal end to the distal end exterior to the endoscope, and is selectively movable by at least one of rotational motion and translational motion relative to the body. The arm includes at least one engagement member configured to contact and engage tissue, and the engagement member is selectively movable between a first position free from contact with the tissue and a second position in contact with the tissue by at least one of the rotational motion and the translational motion.
The body and arms provide an engagement member motion that can translate into lateral and longitudinal movement using a distal bend or elbow, while rotational and translational adjustment is controlled from a proximal handpiece via actuators and adjustment mechanisms. The device can further include arm and engagement geometries configured for gripping or contacting tissue, and can be configured to stow engagement members in recesses to avoid snagging during insertion and removal.
In some embodiments, hollow arms and engagement lumens enable irrigation and/or aspiration without using endoscope working channels, with separate torque transmission arrangements including coaxial/nested torque transmission for separate rotation/spin of engagement elements.
Claims Coverage
The partial claim set includes one independent claim (clm-00001). The independent claim covers a tissue-engaging endoscope-attached device with a body circumferentially disposed about the endoscope working end and exterior arms that selectively move engagement members between non-contact and tissue-contact positions using rotational and/or translational motion, with engagement controlled by arm movement relative to the body.
Circumferentially disposed endoscope body with primary channel and arm channel
A body having a primary channel configured to selectively receive and restrain a distal end of an endoscope; selectively affixed to and forming the distal end of the endoscope; and having at least one arm channel extending therethrough receiving at least one arm, wherein the body is configured to be completely circumferentially disposed about the working end of the endoscope when the device is attached.
Exterior arm selectively movable by rotational and translational motion
At least one arm extending from the proximal end to the distal end of the device exterior to the endoscope, the at least one arm selectively movable by at least one of rotational motion and translational motion relative to the body.
Engagement member movable between free-from-contact and tissue-contact positions
At least one engagement member configured to contact and engage tissue, wherein the at least one engagement member is selectively movable between a first position wherein the at least one engagement member is free from contact with the tissue and a second position wherein the at least one engagement member is in contact with the tissue by at least one of said rotational motion and said translational motion of the at least one arm.
Across the single independent claim, the core inventive coverage is a circumferentially disposed endoscope-attached body with a primary channel and arm channel, exterior arms that are selectively movable in rotational and/or translational motion, and engagement members that move between a non-contact first position and a tissue-contact second position based on the arm motion.
Stated Advantages
Documented Applications
No documented applications found
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