Abstract: An obturator assembly for use in dissection of tissue includes an obturator housing, an obturator member mounted to the obturator housing and an obturator sleeve coaxially mounted about the obturator member and adapted for reciprocal longitudinal movement between a retracted position and an extended position. The obturator member includes an obturator rod and a penetrating end. The penetrating end defines a substantially planar dissecting segment and a central rod segment extending from the planar dissecting element. The planar segment of the penetrating end defines atraumatic outer edges which may be arcuate in character. In one embodiment, the distal entry surface of the central rod segment and the atraumatic edges of the planar dissecting segment are at least partially exposed from the nose shield when in the extended position of the obturator sleeve. The obturator sleeve may include a generally tapered nose shield for at least partially accommodating the penetrating end.

Abstract: This disclosure relates to a control system for driving a motor. The motor may include a cut-out circuit. The control system may include a buck-boost circuit to limit the rate of change of an output voltage before the output voltage is applied to operate the motor.

Abstract: A surgical system comprising a cannula assembly and an obturator assembly for penetrating tissue is disclosed. A cover of the cannula assembly is mounted to a cannula housing and has a cover aperture therethrough. The cover has a trailing end face defining a predetermined geometrical configuration, at least a portion of the trailing end face is obliquely arranged relative to a longitudinal axis and terminates in, and leads toward the cover aperture to facilitate guiding of the surgical object through the cover aperture. The obturator assembly includes an obturator housing and an obturator member. The obturator housing has a housing base defining a leading end face, which defines a predetermined geometrical configuration corresponding to the predetermined geometrical configuration of the trailing end face of the cover to mate therewith upon assembly of the obturator assembly with the cannula assembly.

Abstract: A surgical access assembly and method of use is disclosed, including an access member, a tissue engaging member, a sleeve extending from a portion of the membrane, and a fastening member to couple the access member and the sleeve. The access member includes proximal and distal ends, at least one lumen disposed therethrough, and defines a longitudinal axis. The tissue engaging member includes a membrane having proximal and distal ends with opposing openings, and a passage therethrough for receiving the access member. A length of the tissue engaging member may be selectively adjustable by a user so as to provide a retraction force. The sleeve extends proximally from a portion of the membrane. The sleeve has a proximal end and a distal end with opposing openings, the distal end of the sleeve defined by a portion of the membrane. A fastening member couples the access member and the sleeve.

Abstract: A surgical seal assembly for use with a surgical access device includes a seal housing defining a central longitudinal axis and having a longitudinal passage dimensioned to permit passage of a surgical instrument through the seal housing, a gimbal mount disposed within the seal housing and having a gimbal seal member defining an aperture for substantial sealed reception of the surgical instrument, and an interface seal disposed within the seal housing. The gimbal mount is adapted for angular movement relative to the central longitudinal axis upon angulation of the surgical instrument whereby the gimbal seal member substantially maintains the sealed reception of the surgical instrument. The interface seal includes an interface seal member extending at least along the longitudinal axis and being in substantial contacting sealing relation with the gimbal mount. The interface seal member is adapted to maintain the sealing relation with the gimbal mount upon angular movement thereof.

Abstract: A surgical access assembly and method of use is disclosed, including an access member, a tissue engaging member, a sleeve extending from a portion of the membrane, and a fastening member to couple the access member and the sleeve. The access member includes proximal and distal ends, at least one lumen disposed therethrough, and defines a longitudinal axis. The tissue engaging member includes a membrane having proximal and distal ends with opposing openings, and a passage therethrough for receiving the access member. A length of the tissue engaging member may be selectively adjustable by a user so as to provide a retraction force. The sleeve extends proximally from a portion of the membrane. The sleeve has a proximal end and a distal end with opposing openings, the distal end of the sleeve defined by a portion of the membrane. A fastening member couples the access member and the sleeve.

Abstract: An obturator assembly for use in dissection of tissue includes an obturator housing, an obturator member mounted to the obturator housing and an obturator sleeve coaxially mounted about the obturator member and adapted for reciprocal longitudinal movement between a retracted position and an extended position. The obturator member includes an obturator rod and a penetrating end. The obturator sleeve has a nose adjacent the penetrating end. The penetrating end defines outer edges leading toward a distal end surface. The outer edges are at least partially exposed from the nose when in the extended position of the obturator sleeve.

Abstract: A surgical penetrating system includes a cannula and an obturator. The cannula has an outer wall arranged about a longitudinal axis and a longitudinal opening. At least one substantially linear penetrating member is mounted with respect to the outer wall of the cannula and extends in a general longitudinal direction with respect to the longitudinal axis. The penetrating member is adapted to facilitate passage of the cannula through tissue. Another embodiment of the surgical penetrating system includes a cannula having a longitudinal bore and a penetrating member at least partially and slidably mounted within the longitudinal bore of the cannula. The penetrating member has at least one leg and is axially movable between non-deployed and deployed positions. Moreover, the penetrating member can be mounted for movement relative to the leading end of the cannula and within the longitudinal bore of the cannula between a non-deployed position and a deployed position.

Abstract: A suturing device includes a housing, a rod, a ferrule assembly, and a needle. The housing defines a guide lumen extending longitudinally therethrough. The rod is engaged with the housing and extends distally therefrom. The ferrule assembly is disposed at a distal end of the rod and is configured to releasably retain a ferrule therein. The ferrule is adapted to retain of a portion of a suture therein. The needle is configured for translation through the guide lumen defined within the housing. A distal end of the needle is configured to engage the ferrule within the ferrule assembly for removal of the ferrule from the ferrule assembly.

Abstract: An optical obturator for penetrating tissue and being at least partially positionable within a cannula assembly. The obturator may include an obturator housing at a proximal end of the obturator and may configured to be grasped by a user. The obturator housing may define an opening for receiving an endoscope, the obturator housing including an endoscope retention mechanism adapted for securing and stabilizing an endoscope inserted therethrough. The obturator housing may also include at least one attachment mechanism for enabling selective attachment and detachment of the obturator housing to the cannula assembly. The obturator may also include an obturator shaft integrally formed with the obturator housing. The obturator shaft may define a hollow interior configured to receive the endoscope inserted through the opening. A penetrating member is disposed at the distal end of the obturator shaft. The obturator may be formed as a single component, preferably from transparent material.

Abstract: An optical access apparatus for receiving an endoscope to permit visualization during passage through tissue includes an access member dimensioned for insertion through body tissue. The access member defines a longitudinal axis and has a longitudinal opening for receiving an endoscope. The access member has a closed penetrating end adapted to pass through tissue. The closed penetrating end is transparent to permit visualization of tissue with the endoscope. The optical access apparatus further includes a locking collet coaxially mounted relative to the longitudinal axis of the access member and a manual member mounted adjacent the locking collet and operatively engageable therewith. The locking collet has internal surfaces defining an internal passage to permit passage of the surgical instrument.

Abstract: A suturing device includes a housing, a rod, a ferrule assembly, and a needle. The housing defines a guide lumen extending longitudinally therethrough. The rod is engaged with the housing and extends distally therefrom. The ferrule assembly is disposed at a distal end of the rod and is configured to releasably retain a ferrule therein. The ferrule is adapted to retain of a portion of a suture therein. The needle is configured for translation through the guide lumen defined within the housing. A distal end of the needle is configured to engage the ferrule within the ferrule assembly for removal of the ferrule from the ferrule assembly.

Abstract: A method of forming and enlarging a percutaneous penetration is provided. The method includes the step of providing a radially expandable dilation assembly having a needle assembly removably inserted in a axial lumen thereof. The radially expandable dilation assembly includes a radially expandable sleeve body defining a lumen and an introducer seal disposed across the lumen and defining an opening formed therein. The method further includes the steps of penetrating the radially expandable dilation assembly and needle assembly through tissue to a target surgical site, withdrawing the needle assembly from the radially expandable dilation assembly, and inserting an expansion assembly through the opening formed in the introducer seal and into the axial lumen of the radially expandable dilation assembly.

Abstract: A surgical access device includes a seal assembly having a seal housing and a gimbal mount disposed within the seal housing, the seal housing defining a central longitudinal axis and having a longitudinal passage for receiving at least one surgical object therethrough and the gimbal mount adapted for angular movement relative to the central longitudinal axis. The surgical access device also includes at least one centering unit configured to engage at least a portion of the gimbal mount. The at least one centering unit is configured to center the longitudinal passage of the seal assembly with the central longitudinal axis.

Abstract: A surgical portal apparatus includes a portal member dimensioned to access tissue and having a longitudinal passageway therethrough to permit access to underlying tissue, and defining leading and trailing ends, a seal housing associated with the portal member and a seal mount at least partially disposed within the seal housing. The seal mount is adapted for rotational movement within the seal housing. The seal mount includes an instrument seal adapted to establish a substantial sealed relation with a surgical object introduced within the longitudinal passageway and a closure valve adapted to substantially close the longitudinal passageway in the absence of the object.

Abstract: An optical penetrating adapter for mounting to a surgical portal to permit visualization through the surgical portal includes an adapter member defining a longitudinal axis and having a transparent window adapted to penetrate tissue and to permit visualization therethrough and means for coupling the adapter member to the surgical portal. The transparent window may have various shapes and configurations adapted to penetrate, dissect, resect or separate tissue in a non traumatic manner. Alternatively, the transparent window may incorporate structure such as cutting edges blades, points, etc to pierce, cut or incise tissue.

Abstract: A method of mitigating an application distributed denial of service (DDoS) attack on a network includes receiving at an application DDoS mitigation appliance application layer logs, parsing the application layer logs into an application layer forensic file, comparing an entry of the application layer forensic file with a human behavior profile to determine a malicious qualifier associated with an application DDoS attack on the network, parsing the application layer log into a per-source forensic file, comparing an entry of the per-source forensic files with the malicious qualifier to determine a malicious Internet protocol (IP) addresses associated with the application DDoS attack, and providing the malicious IP address to a network device, wherein the network device drops network traffic associated with the application DDoS attack based upon the malicious IP address.

Abstract: A surgical access apparatus adaptable to permit the sealed insertion of either the surgeon's hand and/or surgical instruments during laparoscopic and endoscopic surgical procedures includes an access housing defining a longitudinal axis and having a first internal passageway configured and dimensioned to permit passage of at least one of a hand and an arm of a surgeon, and a base mountable to the access housing. The base may include a liner member positionable within an incision of a patient to at least partially line the incision. The liner member may have a first end for positioning within the body and a second end for positioning external of the body. A displacement member may be operatively connected to the access housing and to the second end of the liner member.

Abstract: A sealing apparatus includes a housing mountable to an elongate shaft having an axial lumen, a sealing element mounted within the housing and having a dome portion with an opening for passage of an object and at least partially defining an arcuate pathway within the housing, and a sealing member defining a cavity for receiving the object in sealing relation therewith. The sealing member is partially disposed within the housing, and is supported in direct contact with the dome portion of the sealing element. The sealing member is adapted to form a substantial seal with the sealing element, and to spherically move through the arcuate pathway relative to the sealing element upon offset manipulation of an object.