摘要:
A method for removing a vessel from a patient's body comprises the steps of identifying the vessel to be removing and providing an incision in the patient's body near the identified vessel. An optical dissector is inserted through the incision and tissue is optically dissected away from the surface of the vessel with the optical dissector. The optical dissector is then withdrawn from the body through the incision. An optical retractor is inserted into the body through the incision and is used to retract the dissected tissue away from the surface of the vessel thereby providing space between the dissected vessel and the retracted tissue. The vessel and its side branches are then dissected, ligated and transected and the vessel is then removed from the body through the incision.
摘要:
A two-part tissue thickness compensator assembly can include a first tissue thickness compensator configured to be positioned relative to an anvil of a surgical stapler, a second tissue thickness compensator configured to be positioned relative to a staple cartridge of the surgical stapler, and a hinge connecting the first tissue thickness compensator to the second tissue thickness compensator. The first and/or second tissue thickness compensators may include additional engagement features, such as a raised ridge that engages a slot in the anvil and/or the staple cartridge. In certain embodiments, the first and/or second tissue thickness compensators may include an encasement that contains a suitable biologic agent. An end effector assembly may be provided for attachment to a surgical instrument that includes, for example, a staple cartridge, an anvil, a first tissue thickness compensator positioned on the anvil, and a second tissue thickness compensator positioned on the staple cartridge.
摘要:
Apparatus and methods for use in the performance of minimally invasive orthopaedic procedures, including apparatus and methods for use in the performance of such procedures under the visualization of an endoscope, are herein disclosed. Such procedures include a minimally invasive intramedullary nailing procedure, a minimally invasive bone graft harvesting procedure, a minimally invasive pelvic osteotomy procedure, an orthopaedic implant revision procedure, and a minimally invasive percutaneous bone plating procedure.
摘要:
Tissue manipulation and retraction devices. In various forms, the manipulation devices include a cannula that is insertable through the abdominal wall. A plurality of independently controllable manipulation members extend through the cannula and are attachable to various forms of surgical tools. The surgical tools may be manipulated and controlled by a surgeon from a position outside of the patient.
摘要:
A surgical needle includes a pair of ends, a mid-region extending between the ends, and at least one grasping feature configured for grasping by a suturing instrument. An end of a suture is secured to the mid-region of the needle in a manner such that the end of the suture defines an oblique angle with at least part of the centerline defined by the mid-region of the needle. The end of the suture may be disposed in a hollow portion of the needle. The grasping feature may include a notch such as a scallop. The suture may be pivotally coupled with the needle via a ball or pin. The needle may have one or more sharp points. The sharp point may include three converging cutting edges, at least two planar surfaces bounded by the three cutting edges, and a rounded surface bounded by two of the three cutting edges.
摘要:
An apparatus comprises a strap and an inflatable bladder secured to the strap. The apparatus is sized and configured to wrap along a first plane to encompass an anatomical feature such as an esophagus or stomach. The bladder may have a cross-sectional profile that is asymmetric about the first plane, such as a tapered profile or a contoured profile. The wall thickness of the bladder may be substantially uniform or may vary about the perimeter of the bladder. The bladder may include an expansion section that allows the bladder to transition from having a substantially flat cross-sectional configuration in a non-inflated state to having a substantially tapered cross-sectional configuration an inflated state. The expansion section may include folds, pleats, gussets, or the like. The strap may have a cross-sectional profile that is asymmetric about the first plane. Such a strap may include annular ribs of varying sizes.
摘要:
Methods and devices are provided for rotating an end effector on a long, flexible medical device. The methods and devices utilize an actuator mechanism that is effective to rotate an end effector on the distal end of an elongate flexible shaft. The actuator mechanism is movable between a freely rotatable position and a rotationally resistant position. When the actuator mechanism is in a freely rotatable position, the actuator mechanism can be rotated to impart torque to the end effector, and thus at least a distal portion of the elongate shaft, to cause the end effector to rotate. In order to prevent the actuator mechanism from “freewheeling,” wherein the actuator mechanism freely rotates in an opposite direction upon release rather than the end effector rotating in the desired direction, the actuator mechanism can be moved to the rotationally resistant position.
摘要:
Methods and devices are provided for rotating an end effector on a long, flexible medical device. The methods and devices utilize an actuator mechanism that is effective to rotate an end effector on the distal end of an elongate flexible shaft. The actuator mechanism is movable between a freely rotatable position and a rotationally resistant position. When the actuator mechanism is in a freely rotatable position, the actuator mechanism can be rotated to impart torque to the end effector, and thus at least a distal portion of the elongate shaft, to cause the end effector to rotate. In order to prevent the actuator mechanism from “freewheeling,” wherein the actuator mechanism freely rotates in an opposite direction upon release rather than the end effector rotating in the desired direction, the actuator mechanism can be moved to the rotationally resistant position.
摘要:
Methods and devices are provided for rotating an end effector on a long, flexible medical device. The methods and devices utilize an actuator mechanism that is effective to rotate an end effector on the distal end of an elongate flexible shaft. The actuator mechanism is movable between a freely rotatable position and a rotationally resistant position. When the actuator mechanism is in a freely rotatable position, the actuator mechanism can be rotated to impart torque to the end effector, and thus at least a distal portion of the elongate shaft, to cause the end effector to rotate. In order to prevent the actuator mechanism from “freewheeling,” wherein the actuator mechanism freely rotates in an opposite direction upon release rather than the end effector rotating in the desired direction, the actuator mechanism can be moved to the rotationally resistant position.
摘要:
An endoscopic vessel harvesting device and a method of endoscopic harvesting of vessels from a patients body. The method comprises locating the vessel, and inserting the vessel harvesting device through an incision. Dissecting the vessel from the surrounding tissue, and capturing side branch vessels in a vessel capturing device. Ligating and transecting the side branch vessels using electrodes and a knife located in the vessel capturing device. Finally, ligating and transecting the vessel, and removing the vessel from the patients body. The vessel harvesting device comprises a head piece, a shaft having a lumen for receiving an endoscope, and a vessel capturing device located on the head piece for capturing the side branch vessels in the receiver.