US 9,307,984 B2Granted

Tissue clip

AssigneeChildren's Medical Center Corporation

InventorsPedro J. del Nido, Nikolay Vasilyev, Franz Freudenthal

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Abstract

A tissue clip for adjoining tissues including a body portion, a biasing mechanism interconnecting the body portion to a tissue grasping mechanism, the grasping mechanism having a first condition wherein the grasping mechanism is extending against and away from the body portion and a second condition wherein the grasping mechanism is biased against the body portion. A tissue clip and deployer combination. A method of interconnecting tissue by deploying the tissue clip, puncturing tissue to be interconnected with the tissue clip, and interconnecting the tissue. A method of treating an aneurism by deploying the tissue clip at an aneurism site, closing off the aneurism site with the tissue clip, and treating the aneurism. A method of imaging a surgical procedure with ultrasound by modifying a surface of a metal surgical instrument, and imaging the metal surgical instrument with ultrasound during a surgical procedure.

Claims29

Dependent claims

A tissue clip for adjoining tissues, the tissue clip comprising:

a body including at least one elongated body portion having a longitudinal axis, a front, and a back;
and
at least two tissue grasping arms each grasping arm comprising an upper portion, an elongated straight portion, and a smooth pointed end portion, wherein the upper portions of the two tissue grasping arms are connected to the body by a biasing mechanism such that the elongated straight portion of each tissue grasping arm is oriented in the same longitudinal direction as the longitudinal axis of the elongated body portion,
wherein the tissue grasping arms have a first condition in which the elongated straight portions of the tissue grasping arms are disposed away from and behind the back of the body and a second condition in which the elongated straight portions of the tissue grasping arms are rotated along their length and towards the front of the body, such that once deployed in tissue, the elongated straight portions of the grasping arms are located in front of the body to both grasp and tuck the tissue to be joined, and wherein when the tissue clip is in the second condition, the elongated straight portions and upper portions of the tissue grasping arms and the elongated body portion form a triangular structure, as viewed from a top or bottom end along the longitudinal axis, with the tissue tucked within the triangular structure.

1 more element

A method of performing a mitral valve repair, the method comprising:

deploying a tissue clip, the tissue clip comprising:
a body including at least one elongated body portion having a longitudinal axis, and
at least two tissue grasping arms each grasping arm comprising an upper portion and an elongated straight portion, wherein the upper portions of the at least two tissue grasping arms are connected to the body by a biasing mechanism such that the elongated straight portion of each tissue grasping arm is oriented in the same longitudinal direction as the longitudinal axis of the elongated body portion,
wherein the tissue grasping arms have a first condition in which the elongated straight portions of the tissue grasping arms are disposed away from and behind the back of the body and a second condition in which the elongated straight portions of the tissue grasping arms are rotated about their length and towards the front of the body such that once deployed in tissue, the elongated straight portions of the grasping arms are located in front of the body to both grasp and tuck the tissue to be joined, and wherein when the tissue clip is in the second condition, the elongated straight portions and upper portions of the tissue grasping arms and the elongated body portion form a triangular structure, as viewed from a top or bottom end along the longitudinal axis, with the tissue tucked within the triangular structure;
puncturing mitral valve leaflet tissue to be repaired with each of the grasping arms of the tissue clip and positioning the elongated body portion on an atrial surface of the leaflet;
and
rotating the tissue grasping arms along their length towards the elongated body portion in the second condition thereby folding a segment of the leaflet between them to create a pleat within the tissue grasping arms.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/936,992Filed 16 Apr 2009 · us provisional application
Priority: 16 Apr 2008
Published: US 2011/0054306 A13 Mar 2011
Granted: 12 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

A61B 17/0644
Surgical staples, i.e. penetrating the tissue: penetrating the tissue, deformable to closed position
A61B 17/068
Surgical instruments, devices or methods: surgical staplers , e.g. containing multiple staples or clamps
A61B 17/0682
Surgical staplers , e.g. containing multiple staples or clamps: for applying U-shaped staples or clamps, e.g. without a forming anvil
A61B 17/08
Surgical instruments, devices or methods: wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together…