摘要:
A medical device comprises a handle comprises an actuator. A shaft extends distally from the handle. A first shaft segment extends proximally from the handle and has a proximal end and a distal end. A second shaft segment has a proximal end and a distal end and is pivotably supported with respect to the distal end of the first shaft segment at a position offset from a longitudinal axis of the shaft in a first offset direction. A third shaft segment has a proximal end and a distal end and is pivotably supported with respect to the distal end of the second shaft segment at a position offset from the longitudinal axis of the shaft in a second offset direction different from the first offset direction. A first member extends through at least a portion of the first shaft segment and is operatively associated with the actuator. A second member extends through at least a portion of the second shaft segment. The second member has a proximal end pivotably supported with respect to the distal end of the first member and a distal end pivotably supported with respect to the third shaft segment. The actuator is operative to provide substantially simultaneous compound articulation of the second and third shaft segments.
摘要:
An attachment mechanism for a surgically implantable medical device includes one or more fasteners which may be simultaneously moved from an undeployed position to a deployed position by operation of an integral actuator. The attachment mechanism may be configured to be deactuated, and the fasteners simultaneously moved from a deployed position to an undeployed position, allowing removal or repositioning of the medical device. An applier includes a locator for detachably holding the implantable medical device, locating it at the desired position, and actuating the attachment mechanism. The applier is configured to undeploy the attachment mechanism the implantable medical device can be detached from the body tissue.
摘要:
A medical instrument is provided including a shaft having a proximal end and a distal end that define an axis, wherein the distal end is penetratable into tissue. The instrument also includes a tissue stop disposed on the shaft near the distal end and changeable between a collapsed configuration and an expanded configuration, wherein the distal end is penetratable into the tissue approximately to a predetermined depth when the tissue stop is in the expanded configuration.
摘要:
A method of repositioning an injection port comprises positioning the injection port at a first location in a patient's body and extending fasteners of the injection port to substantially secure the injection port at the first location. The fasteners are then retracted to substantially unsecure the injection port from the first location in the patient's body. The injection port is then moved to a second location in the patient's body. The fasteners are then re-extended to substantially secure the injection port at the second location in the patient's body. The injection port includes a port body. The fasteners are integral with the port body. The fasteners may be selectively extended and retracted relative to the port body. For instance, the fasteners may be pivoted relative to the port body to transition between extended and retracted positions. The extension and retraction of fasteners may be provided through a port applier.
摘要:
Methods and devices are provided for controlling movement of a working end of a surgical device, and in particular for performing various surgical procedures using an instrument having an end effector that can be articulated relative to an elongate shaft of the device. A decoupling member can isolate the actuation of the end effector from the articulation of the end effector. In certain embodiments, the end effector can also optionally rotate relative to the elongate shaft of the device, and/or the shaft can rotate relative to a handle of the device.
摘要:
A tissue-penetrating instrument. In various exemplary embodiments, the instrument may comprise a substantially flexible elongate penetration member that has a proximal end and a distal end. The distal end may have a substantially blunt tissue penetrating tip thereon. The instrument may further include an elongate hollow support tube that has a passage extending therethrough that is sized to movably support a portion of the substantially flexible elongate member therein and prevent buckling thereof as at least one motion is applied to the distal end of the substantially flexible elongate member. The elongate hollow support tube may be sized to extend through a working channel of an endoscope. Methods of using such instruments to perform surgical procedures by inserting the instrument through a natural body lumen are also disclosed.
摘要:
A surgical instrument for fastening tissue with a staple. The instrument includes a cartridge adapted for containing the staple. The cartridge includes a mechanism adapted to selectively advance the staple toward a forward end of the cartridge so the ends of the staple protrude from the cartridge and to selectively close the staple. The cartridge includes a mount connected to the cartridge and adapted for mounting the cartridge to an end of an endoscope. The cartridge includes a linkage connected to the cartridge for actuating the mechanism to advance and close the staple and a remote actuator connected to the linkage a predetermined distance from the cartridge for actuating the mechanism from a position remote from the cartridge.
摘要:
An apparatus for regulating the functioning of a patient's organ or duct. The apparatus includes an elongated member having first end and second ends. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a ring around the organ or duct. A tension element is slidably disposed within the elongated member. A drive element is associated with and engaging the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. An antenna/controller pod is releasably coupled to the elongated member for control of the drive element.
摘要:
A medical device comprises a handle comprises an actuator. A shaft extends distally from the handle. A first shaft segment extends proximally from the handle and has a proximal end and a distal end. A second shaft segment has a proximal end and a distal end and is pivotably supported with respect to the distal end of the first shaft segment at a position offset from a longitudinal axis of the shaft in a first offset direction. A third shaft segment has a proximal end and a distal end and is pivotably supported with respect to the distal end of the second shaft segment at a position offset from the longitudinal axis of the shaft in a second offset direction different from the first offset direction. A first member extends through at least a portion of the first shaft segment and is operatively associated with the actuator. A second member extends through at least a portion of the second shaft segment. The second member has a proximal end pivotably supported with respect to the distal end of the first member and a distal end pivotably supported with respect to the third shaft segment. The actuator is operative to provide substantially simultaneous compound articulation of the second and third shaft segments.
摘要:
A module for attachment to a medical instrument to scan the anatomy with a beam of radiation. The module comprising a housing suitable for insertion in the anatomy that includes a window and a fastener to attach the housing to a medical instrument, an oscillating reflector within the housing that directs a beam of radiation onto the anatomy, and a collector to receive radiation returned from the anatomy.