United States Surgical Corporation

Surgiquest, Incorporated

Other

Tyco Healthcare Group LP

Paul A Matula

Stanley H Remiszewski

William J Mccabe

Ernie Aranyi

David A Nicholas

Henry Bolanos

Ralph A Stearns

Dominick L Mastri

H Jonathan Tovey

Boris Zvenyatsky

James Raymond Parys

Johnnie H Copley

Christopher G Estkowski

David T Green

Douglas J Cuny

Graham W Bryan

William J McCabe

Scott E Manzo

David M Farascioni

Kevin S Sniffin

Kurt Azarbarzin

Joseph P Orban

Frank M Rende

Daniel P Rodak

Michael Ciccolella

Kevin Sniffen

George M Chelednik

John F Klinger

Brian G Russell

Christopher F Klecher

Graeme Winslow

Jerry Hamlin

Dennis Gemmell

Gerald T McCourtney

Disclosed is multi-flow filter cartridge assembly that includes an elongated housing that has axially opposed proximal and distal ends and defines an interior cavity and first, second and third flow paths which extend from the proximal end of the housing to the distal end. The cartridge assembly also includes first, second and third filter elements. The first filter element is disposed within the interior cavity of the housing and conditions fluid that traverses the first flow path from a first inlet port to a first outlet port. The second filter element is disposed within the interior cavity of the housing and conditions fluid that traverses the second flow path from a second inlet port to a second outlet port. Lastly, the third filter element is also disposed within the interior cavity of the housing and conditions fluid that traverses the third flow path from a third inlet port to a third outlet port. The first flow path is isolated from the second and third flow paths and the second flow path is isolated from the third flow path.

Multi-flow filtration system

An aortic punch for creating an aortotomy in a wall of a luminal structure. The aortic punch includes a housing having distal and proximal ends, first and second plungers, a first return spring and a cutting assembly. The first plunger is movable relative to the housing to expose a barb from the distal end of the housing for piercing and catching the wall of the luminal structure. The first return spring biases the barb proximally toward the distal end of the housing such that the barb pulls the wall of the luminal structure into contact with the cutting assembly. The present disclosure also relates to a method of forming an aortotomy in a luminal structure.

Anastomosis instrument and method for performing same

A surgical instrument is provided for use in endoscopic or laparoscopic procedures. The instrument includes a handle portion, an endoscopic portion extending from the handle portion, an articulating section pivotably connected to a distal end portion of the endoscopic portion, and a retractor assembly operatively associated with the articulating section. Structure is provided for manipulating the articulating section relative to the longitudinal axis of the endoscopic portion within an angular degree of rotation. An injection port may also be provided to deliver fluids through the endoscopic portion to the operative site.

Articulating endoscopic surgical apparatus

An apparatus and method for the biopsy of tissue specimens and, more particularly, a single insertion multiple sample percutaneous biopsy apparatus and method are provided. A tip at a distal end of a vacuum support tube is introduced into a tissue mass. The vacuum support tube is retracted exposing a basket tube bounded by a front washer and a rear washer mounted thereabout forming a tissue basket. The basket tube is supported internally by a thrust tube which provides structure to the apparatus to allow it to penetrate tissue. The thrust tube and the basket tube are in fluid connection and are provided with suction to draw tissue inward. The tissue is then severed by rotating and advancing a knife edge at the distal end of the vacuum support tube. The tissue basket is withdrawn and the tissue sample is removed by rotating the vacuum support tube. The tissue sample is sliced longitudinally, and a stripper scrapes the tissue sample from an opening in the vacuum support tube.

Biopsy apparatus

A tissue gripping thread configuration for securely positioning an elongated medical instrument relative to body tissue. The tissue gripping thread includes curved distal and proximal foot sections connected to a thread base, a curved distal thread surface extending from the distal foot section to a thread apex, and a proximal thread wall substantially perpendicular to the base surface extending from the proximal curved foot section to the thread apex. In the preferred embodiment the flank angle of the distal thread surface is substantially greater than the flank angle of the proximal thread wall. The preferred thread configuration reduces trauma to tissue during insertion and removal of an associated medical instrument while ensuring secure positioning of the instrument relative to tissue. Preferred thread dimensions and radii, as well as embodiments for associating the preferred thread configuration with a trocar device are disclosed.

Tissue holding device and method

A surgical biopsy apparatus is provided which includes a housing; a first elongated tubular member removably mounted in the housing and defining a fluid passageway therein, the first elongated tubular member including: a tapered closed distal end portion adapted to penetrate tissue; a laterally disposed tissue receiving opening formed near the tapered distal end which includes a tissue support surface defining a plurality of holes in fluid communication with the fluid passageway; and a second elongated tubular member rotatably and reciprocatingly disposed coaxially about the first elongated tubular member, the second elongated tubular member having a cutting edge formed at an open distal end thereof and a lateral tissue discharge port formed proximally of the cutting edge. A method of performing a surgical biopsy is also provided which includes inserting a biopsy apparatus into the tissue of a patient, the biopsy apparatus including an inner tubular member having a tapered penetrating end formed on the distal end and an outer tubular member held longitudinally fixed relative to the inner tubular member during the insertion step; retracting the outer tubular member relative to the inner tubular member to expose a laterally disposed tissue receiving area formed on the inner tubular member; applying suction to a series of openings formed along an inner surface of the tissue receiving area to pull tissue into the tissue receiving area; severing tissue disposed within the tissue receiving area by advancing the outer tubular member over the inner tubular member such that a cutting surface formed on the distal end of the outer tubular member rotates as it passes over the tissue receiving area; and removing the severed tissue sample from the tissue sampling site by retracting the inner tubular member from the outer tubular member until the tissue receiving area is aligned with a lateral opening formed in the outer tubular member wherein a tissue stripping plate urges the tissue sample out of the tissue receiving area.

Biopsy apparatus and method

An apparatus and method for the biopsy of tissue specimens and, more particularly, a single insertion multiple sample percutaneous biopsy apparatus and method are provided. A tip at a distal end of a vacuum support tube is introduced into a tissue mass. The vacuum support tube is retracted exposing a basket tube bounded by a front washer and a rear washer mounted thereabout forming a tissue basket. The basket tube is supported internally by a thrust tube which provides structure to the apparatus to allow it to penetrate tissue. The thrust tube and the basket tube are in fluid communication and are provided with suction to draw tissue inward. The tissue is then severed by rotating and advancing a knife edge at the distal end of the vacuum support tube. The tissue basket is withdrawn and the tissue sample is removed by rotating the vacuum support tube. The tissue sample is sliced longitudinally, and a stripper scrapes the tissue sample from an opening in the vacuum support tube.

A biopsy apparatus for obtaining tissue samples includes a housing, an elongated member slidably and rotatably mounted in the housing and a blade having a stem portion pivotally mounted on the elongated member and moving transversely relative to a longitudinal axis of the elongated member between a stowed position and a deployed position. A method of sampling tissue includes the steps of providing the biopsy apparatus, inserting the elongated member into a tissue mass, deploying the blade, severing a tissue sample from the tissue mass by proximally retracting and rotating the elongated member, removing the elongated member from the tissue mass and extracting the tissue sample from a patient.

An endoscopic or laparoscopic surgical instrument is disclosed having a handle assembly including a barrel portion, stationary handle and a pivoting handle. A body assembly includes a pair of coaxial members attached at one end to the handle assembly, and an inner rod member slidable within an outer tube member in response to movement of the pivoting handle of the handle assembly. The body assembly terminates at an end remote from the handle assembly in a reciprocatingly movable tool mechanism. A first toothed ratchet mechanism is associated with the pivoting handle, and a second toothed mating ratchet mechanism is operatively associated with the first toothed ratchet mechanism for selectively locking the first toothed ratchet mechanism and the pivoting handle in one of a plurality of selectable positions to thereby position the inner rod member and the movable tool mechanism in predetermined selectable positions. A finger operable trigger member is operatively associated with the second toothed ratchet mechanism for selectively engaging and disengaging the first and second ratchet mechanisms to thereby selectively lock and unlock the movable tool mechanism.

Surgical instrument having locking handle

An endoscopic surgical instrument for aspiration and irrigation of a surgical site is disclosed. Connection ports for irrigation fluid and a suction source are provided which communicate with a single lumen cannula which transports both the irrigation fluid and the suction pressure to the surgical site. A valve mechanism having a novel valve stem and valve arrangement is also disclosed for providing higher pressure capabilities for the instrument. In one embodiment, the single lumen cannula is provided with a sliding sleeve to vary the pressure of the irrigation fluid to provide for high pressure application of the irrigation fluid to perform hydrodissection. The aspiration-irrigation instrument may also include electrocautery capabilities and a detachable cannula assembly for interchanging cannulas having different working tool members. In one embodiment, a sliding outer sleeve is also provided for selectively exposing the working tool members. An insertion port for reception of a surgical instrument which may be utilized with the suction and irrigation device during surgical procedures is also disclosed.

Endoscopic surgical instrument for aspiration and irrigation

An endoscopic surgical instrument for aspiration and irrigation of a surgical site. The device includes at least one rotatable trumpet valve to provide for variable orientation of the device during use. Connection ports for irrigation fluid and a suction means are provided which communicate with a single lumen cannula which transports both the irrigation fluid and the suction pressure to the surgical site. The single lumen cannula is provided with a sleeve means to vary the pressure of the irrigation fluid to provide for high pressure application of the irrigation fluid to perform hydrodissection. A plurality of dissector tips and a novel means of securing the tips to the single lumen cannula are also disclosed.

Growing community of inventors

Brookfield, CT, United States of America

Paul A Matula