Device for treating a body tissue, and associated treatment kit
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Publication Number
US-10940004-B2
Publication Date
2021-03-09
Expiration Date
Abstract
The invention relates to a device (12) for treating a body tissue presenting a prolapse. The device comprises: at least two arms (14, 16), each arm having a distal end (40) for gripping the tissue, a proximal maneuvering end (42) opposite the distal gripping end, and an elongate portion (44) comprised between the distal gripping end and the proximal maneuvering end, each elongate portion extending along a main direction (X). Furthermore, each arm is rotatable between an angular catching position (a1, a2) and an angular clamping position (e1, e2) around a rotation axis (A1, A2) substantially parallel to the main direction, and the device comprises a guide member (25) able to limit the transverse movement of the arms relative to one another along a direction perpendicular to the main direction.
Core Innovation
The invention relates to an endovascular treatment device and a treatment kit for treating a body tissue presenting a prolapse. The device is configured for positioning a pair of distal tissue-gripping hooks on the prolapse and for securing the prolapsed tissue in order to restore valve coaptation and blood passage. Each arm includes a distal end for gripping the tissue and a proximal maneuvering end opposite the distal end, with an elongate portion extending along a main direction.
The device comprises at least two arms that are rotatable between an angular catching position and an angular clamping position about a rotation axis substantially parallel to the main direction. A guide member is provided to limit transverse movement of the arms relative to one another along a direction perpendicular to the main direction. The device is maneuverable between a free configuration, in which the arms are rotatable independently, and a connecting configuration, in which the arms are secured in rotation.
The described mechanism further enables the device, including the at least two arms and the guide member, to be released and left in place in the body. Multiple mechanical maintaining and locking embodiments are described, including a maintaining system with complementary fastening surfaces and rotational blocking by stops, as well as guide-member geometries limiting movement. In operation, the arms are rotated toward clamping to crush and fold the prolapse so that the secured device remains in place after external mechanisms and a stay are removed.
Claims Coverage
The partial content provides one independent claim directed to a treatment device for a body tissue prolapse, with dependent claims refining mechanical features and deployment configurations. The independent claim includes at least three major inventive feature groups: the paired rotatable hook arms, the guide member limiting transverse relative movement, and a deploy-and-secure workflow between a free configuration and a connecting configuration followed by release and leaving the device in place.
At least two rotatable hook arms for gripping prolapse tissue
The device comprises at least two arms including a first arm and a second arm, each arm having a distal end for gripping the tissue with a hook able to draw the tissue, and a proximal maneuvering end opposite the distal end.
Angular catching to angular clamping rotation about an axis parallel to the main direction
Each of the at least two arms is rotatable between an angular catching position and an angular clamping position around a rotation axis substantially parallel to the main direction.
Guide member limiting transverse relative movement between arms
The device comprises a guide member able to limit the transverse movement of the arms relative to one another along a direction perpendicular to the main direction.
Free configuration independent rotation and connecting configuration secured in rotation
The device is maneuverable between a free configuration, in which each of the at least two arms is rotatable independently of another, and a connecting configuration, in which the at least two arms are secured in rotation.
Release and left in place in the body
The device, including the at least two arms and the guide member, is configured to be released and left in place in the body.
Overall, the claim coverage centers on a prolapse-treatment device that uses at least two distal-hook arms rotatable between catching and clamping positions about an axis parallel to a main direction, with a guide member constraining transverse relative arm movement. It further covers a two-mode maneuvering concept with independent free rotation and a connecting configuration securing the arms in rotation, followed by release and leaving the device in place.
Stated Advantages
Documented Applications
No documented applications found
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