Patent application number | Description | Published |
20090108048 | POWERED SURGICAL INSTRUMENT - A surgical instrument including a handle assembly, a first endoscopic portion, a motor, and a first end effector is disclosed. The first endoscopic portion is selectively connectable to a distal portion of the handle assembly and defines a longitudinal axis. The first endoscopic portion includes a housing adjacent its proximal portion and includes an actuation member. The motor is disposed in mechanical cooperation with the housing of the first endoscopic portion and is operatively connected to the actuation member for moving the actuation member substantially along the longitudinal axis. The first end effector is selectively connectable to a distal portion of the first endoscopic portion and is configured to perform a first stapling function. | 04-30-2009 |
20100133321 | DIRECTIONALLY BIASED STAPLE AND ANVIL ASSEMBLY - In accordance with the present disclosure a directionally biased staple is provided for use in all types of surgical staplers having anvil structure against which the staple is formed. The directionally biased staple may be constructed in a wide variety of cross-sectional configurations including rectangular, elliptical, trapezoidal, etc. All of the configurations are distinguished by having a bending region requiring more force to twist or malform the staple than is required to properly form the staple. Preferably, these staples have Moment of Inertia Ratios on the order of between about 1.1 to about 3.0. The staple preferably corresponds in other respects to conventional formed staples, i.e. having at least a pair of leg members interconnected by a crown portion wherein the leg members are formed by direct contact with the anvil. An anvil assembly is also provided for minimizing the malformation of staples. | 06-03-2010 |
20100168522 | SURGICAL ACCESS ASSEMBLY - A surgical access assembly configured and dimensioned for positioning within an intercostal space defined between a patient's adjacent ribs to facilitate passage of a surgical instrument into an internal work site. The surgical access assembly includes a body portion that may be either partially or wholly formed from a resilient material such that the surgical access assembly is resiliently deformable to facilitate conformity with the intercostal space in order to minimize the application of force to the patient's tissue upon insertion and removal of the access assembly and manipulation of the surgical instrument. | 07-01-2010 |
20110278344 | POWERED SURGICAL INSTRUMENT - A surgical instrument including a handle assembly, a first endoscopic portion, a motor, and a first end effector is disclosed. The first endoscopic portion is selectively connectable to a distal portion of the handle assembly and defines a longitudinal axis. The first endoscopic portion includes a housing adjacent its proximal portion and includes an actuation member. The motor is disposed in mechanical cooperation with the housing of the first endoscopic portion and is operatively connected to the actuation member for moving the actuation member substantially along the longitudinal axis. The first end effector is selectively connectable to a distal portion of the first endoscopic portion and is configured to perform a first stapling function. | 11-17-2011 |
20120150120 | TROCAR SEAL SYSTEM - A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process. | 06-14-2012 |
20120193390 | Directionally Biased Staple And Anvil Assembly - An anvil assembly for use with a surgical stapler having a tissue contact surface and a plurality of staple pockets formed in the tissue contact surface. Each of the plurality of staple pockets including first and second staple forming cups, each of the first and second staple forming cups having an outside portion and an inside portion, the inside portion of the first and second staple forming cups being positioned in close relation to each other and the outside portion of the first and second staple forming cups being positioned in spaced relation to each other. Each of the first and second staple forming cups being defined by sidewalls and an elongated base surface, wherein upper portions of the sidewalls intersect the tissue contact surface at a line of intersection, and wherein the line of intersection is curved along a majority of its length between the outside portion and the inside portion of each of the staple forming cups. | 08-02-2012 |
20120211542 | CONTROLLED TISSUE COMPRESSION SYSTEMS AND METHODS - A surgical instrument is provided including an end effector configured to clamp, staple or cut tissue tissue, a motor configured to drive the end effector and a control system. The control system is configured to receive information about at least one tissue property and select a tissue management mode based on the at least one tissue property. The control system controls the motor based on the selected tissue management mode. | 08-23-2012 |
20120220989 | POWERED SURGICAL INSTRUMENT - A surgical instrument including a handle assembly, a first endoscopic portion, a motor, and a first end effector is disclosed. The first endoscopic portion is selectively connectable to a distal portion of the handle assembly and defines a longitudinal axis. The first endoscopic portion includes a housing adjacent its proximal portion and includes an actuation member. The motor is disposed in mechanical cooperation with the housing of the first endoscopic portion and is operatively connected to the actuation member for moving the actuation member substantially along the longitudinal axis. The first end effector is selectively connectable to a distal portion of the first endoscopic portion and is configured to perform a first stapling function. | 08-30-2012 |
20140171744 | TROCAR SEAL SYSTEM - A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process. | 06-19-2014 |