摘要:
Embodiments include a method of performing a medical procedure in a patient. The method includes inserting a first working instrument and a second working instrument through an opening in the patient, creating an incision in body tissue inside the patient using at least one of the first and second working instruments, and advancing the second working instrument through the incision to position the second working instrument at a work site inside the patient. The method also includes positioning the first working instrument at the work site without advancing the first working instrument through the incision and performing a procedure at the work site inside the patient using the first and second working instruments.
摘要:
Embodiments include a method of performing a medical procedure in a patient. The method includes inserting a first working instrument and a second working instrument through an opening in the patient, creating an incision in body tissue inside the patient using at least one of the first and second working instruments, and advancing the second working instrument through the incision to position the second working instrument at a work site inside the patient. The method also includes positioning the first working instrument at the work site without advancing the first working instrument through the incision and performing a procedure at the work site inside the patient using the first and second working instruments.
摘要:
A sheath for a medical instrument may include an elongate body extending from a proximal end to a distal face, and a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.
摘要:
This invention is directed to a flexible device, a first elongate member configured to move the flexible device in a first direction, and a second elongate member configured to move the flexible device in a second direction. The flexible device can include a plurality of articulation links, wherein at least one of the plurality of articulation links can include a body configured to receive the first elongate member and the second elongate member. A cinching element may engage the first elongate member to substantially limit movement between the plurality of articulation links when a tensile force is applied to the first elongate member and may disengage the first elongate member to permit movement between the plurality of articulation links when a tensile force is applied to the second elongate member.
摘要:
Described herein are various systems and methods for directing endoscopy instruments to varying positions at a target site. In one aspect, at least one instrument channel has multiple exit points at the distal end of the guide tube, and the position of an instrument delivered through the channel may be switched between the different exit points. In another aspect, an instrument channel splits into multiple branches at the distal end of the guide tube, and the position of an instrument at the target site may be changed by selectively directing the instrument into a different channel branch. In yet another aspect, the guide tube, or a portion thereof, may be rotated to reposition an instrument at the target site. The capability of changing the instrument positions during a procedure would enable a physician to examine or treat multiple target sites within an operative field, without necessitating the full retraction of the instruments or the guide tube from the operative field.
摘要:
A sheath for a medical instrument may include an elongate body extending from a proximal end to a distal face, and a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.
摘要:
A support mechanism for a medical device may include an adjustable support that includes a plurality of elongate members movable relative to one another. The support mechanism may also include a bracket coupled to the adjustable support. The bracket may be adapted to be coupled to a first medical device that extends along a longitudinal axis. The support mechanism may also include an instrument holder that extends along a central axis. The instrument holder may be movably coupled to the bracket and adapted to be coupled to a second medical device. The bracket and the instrument holder may be oriented such that central axis of the instrument holder intersects the longitudinal axis at an angle.
摘要:
This invention is directed to a flexible device, a first elongate member configured to move the flexible device in a first direction, and a second elongate member configured to move the flexible device in a second direction. The flexible device can include a plurality of articulation links, wherein at least one of the plurality of articulation links can include a body configured to receive the first elongate member and the second elongate member. A cinching element may engage the first elongate member to substantially limit movement between the plurality of articulation links when a tensile force is applied to the first elongate member and may disengage the first elongate member to permit movement between the plurality of articulation links when a tensile force is applied to the second elongate member.
摘要:
This invention is directed to a medical device with a handle and a catheter. The handle can include a body having a proximal end and a distal end, an actuator moveably coupled to the body, and a handle control member coupled to the actuator, wherein the actuator can be configured to move relative to the body to move the handle control member. The catheter can include a shaft having a proximal end and a distal end, wherein the proximal end of the shaft and the distal end of the body can be configured for releasable coupling. The catheter can also include a steering section located along the shaft and a catheter control member coupled to the steering section. A securing member may move relative to at least one of the handle and the catheter to releasably couple the handle control member to the catheter control member.
摘要:
Drive systems and methods of use are disclosed herein for performing medical procedures on a patient. The drive systems include various handle types and triggers for controlling catheters and end effectors. The various handle types include a flexible handle and ambidextrous handles that can alter the handedness of the handle for particularized use. The handles drive articulation sections of the catheter and end effectors with various degrees of freedom, and include locks for holding the catheter and/or end effector in place. The catheter systems include structures for allowing degrees of freedom, such as notches, mechanical interlocks, and articulation joints. In addition, the catheters articulate via cables or fluids.