Systems, methods, and apparatuses for debriding a tissue site are described. The system includes a manifold and a cover adapted to form a sealed space over the tissue site for providing negative pressure. The system also includes a debridement tool positioned between the manifold and the tissue site. The debridement tool having a tissue-facing surface and a plurality of holes separated from each other by walls. The walls have transverse surfaces extending between the tissue-facing surface and an opposite surface that form cutting edges. The holes have a perforation shape factor that allows the holes to collapse from a relaxed position to a contracted position in response to the application and removal of negative pressure from the sealed space. The cutting edges debride the tissue site in response to movement between the relaxed position and the contracted position.

A contained tissue extraction device for morcellating a tissue inside an intracorporeal cavity is disclosed. Particularly, the contained tissue extraction device includes serrated-blade wire segments that are sandwiched between an inner bag and an outer bag. The contained tissue extraction device may capture a target tissue such that a surgeon may pull the contained tissue extraction device taught through an incision that is smaller than the target tissue. The contained tissue extraction device allows a surgeon to morcellate the contained tissue by oscillating wire ends of the wire segments back and forth.

Adjunct materials for delivery to stomach tissue are provided. In general, the adjunct materials can be configured to be delivered to tissue by deployment of staples from a cartridge body of a surgical stapler. The adjunct material can have a structure effective to cause a desired reaction in the stomach tissue. The adjunct material can include an effective amount of one or more medicants disposed within and releasable from the adjunct material for delivery to the stomach tissue to encourage the desired reaction. The adjunct material can be in the form of at least one of a film and a foam that is releasably retained on the cartridge body. Methods of using a staple cartridge assembly or an end effector to apply such adjunct materials to stomach tissue are also provided.

In accordance with an aspect of the present disclosure, a tissue extraction device may include a bag having an interior and a plurality of cutting elements extending through the interior of the bag. The cutting elements can have a common end.

A veterinary saw assembly having a tool coupler for coupling to an external power tool and a drive coupler for driving a cutting string from the power tool. The cutting string can be an abrasive wire. The power tool can be a drill. The saw assembly can be used for dehorning or foetotomy procedures. Also disclosed are saws that include the saw assembly, cutting strings for use with the saw assembly, methods of stringing the saw assembly with a cutting string, and a kit including the cutting string and instructions for its use.

A transcatheter device (10) includes a first jaw member (12), a second jaw member (14) and a linkage mechanism (16) coupled to the first and second jaw members (12, 14) for changing a distance between the first and second jaw members (12, 14). At least one of the first and second jaw members (12, 14) includes scoring structure (20) capable of scoring calcifications or tissue or any other anatomical structure, with a direction of a scoring force along a jaw closing axis (25) that extends between surfaces (22, 24) of the first and second jaw members (12, 14), respectively, which face each other. The first jaw member (12) has a cutting element (18) arranged to cut in a cutting direction (27) transverse to the jaw closing axis (25).

This document describes devices and methods for performing septal myectomy procedures in which excess tissue is removed from a thickened, overgrown septum between two ventricles of a heart. For example, this document describes myectomy instruments that can simplify and speed up septal myectomy procedures, and provide enhanced control of the amount of tissue being removed.

An apparatus for disrupting tissue in the intervertebral disc space that includes a barrier member having a first configuration for insertion into the disc space and a second configuration when deployed within the disc space. The second configuration of the barrier member is adapted to at least partially define a perimeter of a working region within the disc space. The apparatus also includes a tissue disruption tool configured for insertion into the working region.

Systems, methods, and apparatuses for debriding a tissue site are described. The system includes a manifold and a cover adapted to form a sealed space over the tissue site for providing negative pressure. The system also includes a debridement tool positioned between the manifold and the tissue site. The debridement tool having a tissue-facing surface and a plurality of holes separated from each other by walls. The walls have transverse surfaces extending between the tissue-facing surface and an opposite surface that form cutting edges. The holes have a perforation shape factor that allows the holes to collapse from a relaxed position to a contracted position in response to the application and removal of negative pressure from the sealed space. The cutting edges debride the tissue site in response to movement between the relaxed position and the contracted position.

Apparatus, systems, and methods for treating PKD by providing access to a patient's renal pelvis of a kidney to treat renal nerves embedded in tissue surrounding the renal pelvis. Access to the renal pelvis may be via the urinary tract or via minimally invasive incisions through the abdomen and kidney tissue. Treatment is effected by exchanging energy, typically delivering heat or extracting heat through a wall of the renal pelvis, or by delivering active substances to ablate a thin layer of tissue lining at least a portion of the renal pelvis to disrupt renal nerves within the tissue lining of the renal pelvis.