摘要:
In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that rotatably supports an ultrasonic transducer assembly therein that may be selectively rotated by a motor housed therein. Various forms of blades are disclosed for attachment to the ultrasonic transducer assembly such that the blade may be selectively rotatable within a hollow outer sheath. The hollow outer sheath has at least one opening therein through which the blade tip may be exposed to tissue. Vacuum may be applied to the cutting implement or through the outer sheath to draw tissue through the opening(s) in the sheath and into contact with a portion of the blade.
摘要:
In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that rotatably supports an ultrasonic transducer assembly therein that may be selectively rotated by a motor housed therein. Various forms of blades are disclosed for attachment to the ultrasonic transducer assembly such that the blade may be selectively rotatable within a hollow outer sheath. The hollow outer sheath has at least one opening therein through which the blade tip may be exposed to tissue. Vacuum may be applied to the cutting implement or through the outer sheath to draw tissue through the opening(s) in the sheath and into contact with a portion of the blade.
摘要:
An ultrasonic surgical instrument includes a reusable handle assembly and a removable and disposable transmission assembly. The handle assembly includes a trigger, a housing having a distal aperture formed in a distal end of the housing, a button disposed on a top surface of the housing, and a biasing member in communication with the button. The transmission assembly includes a proximal shaft, a rotator knob having a coupling feature, a distal shaft assembly extending distally from the proximal shaft, and an end effector at the distal end of the distal shaft assembly. The biasing member of the handle assembly is adjustably coupled to the coupling feature of the transmission assembly. Another version includes a movable yoke configured to engage an inner tube of the transmission assembly. Yet another version includes a waveguide of the transmission assembly non-threadably coupled to a transducer via a biasing force.
摘要:
In one general aspect, various embodiments are directed to methods for treating tissue within an aqueous environment. Various methods may include introducing a cutting implement of a surgical instrument into the aqueous environment. The cutting implement may have at least one cutting surface thereon and at least one ultrasonic portion thereon and be selectively rotatable within a hollow sheath. The methods may include rotating or rotatably oscillating the cutting implement within the hollow sheath for tissue cutting purposes. The cutting implement may also be retained in a position wherein the ultrasonic portion of the cutting implement may be applied to tissue and then have ultrasonic motion applied thereto.
摘要:
In one general aspect, various embodiments are directed to methods for treating tissue within an aqueous environment. Various methods may include introducing a cutting implement of a surgical instrument into the aqueous environment. The cutting implement may have at least one cutting surface thereon and at least one ultrasonic portion thereon and be selectively rotatable within a hollow sheath. The methods may include rotating or rotatably oscillating the cutting implement within the hollow sheath for tissue cutting purposes. The cutting implement may also be retained in a position wherein the ultrasonic portion of the cutting implement may be applied to tissue and then have ultrasonic motion applied thereto.
摘要:
An ultrasonic surgical instrument includes a reusable handle assembly and a removable and disposable transmission assembly. The handle assembly includes a trigger, a housing having a distal aperture formed in a distal end of the housing, a button disposed on a top surface of the housing, and a biasing member in communication with the button. The transmission assembly includes a proximal shaft, a rotator knob having a coupling feature, a distal shaft assembly extending distally from the proximal shaft, and an end effector at the distal end of the distal shaft assembly. The biasing member of the handle assembly is adjustably coupled to the coupling feature of the transmission assembly. Another version includes a movable yoke configured to engage an inner tube of the transmission assembly. Yet another version includes a waveguide of the transmission assembly non-threadably coupled to a transducer via a biasing force.
摘要:
In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that rotatably supports an ultrasonic transducer assembly therein that may be selectively rotated by various motor configurations. Various slip ring arrangements are disclosed for supplying ultrasonic electrical signals and motor drive signals from a control system. Various forms of blade and cutting implements are disclosed for attachment to the ultrasonic transducer assembly such that such implements may be selectively rotatable within a hollow outer sheath. Vacuum may be applied to the cutting implement or through the outer sheath to draw tissue through an opening in the sheath and into contact with the cutting implement.
摘要:
In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that rotatably supports an ultrasonic transducer assembly therein that may be selectively rotated by various motor configurations. Various slip ring arrangements are disclosed for supplying ultrasonic electrical signals and motor drive signals from a control system. Various forms of blade and cutting implements are disclosed for attachment to the ultrasonic transducer assembly such that such implements may be selectively rotatable within a hollow outer sheath. Vacuum may be applied to the cutting implement or through the outer sheath to draw tissue through an opening in the sheath and into contact with the cutting implement.
摘要:
In various embodiments, a surgical instrument for operation in an aqueous environment is provided. In at least one embodiment, the surgical instrument may include a hollow sheath and a blade disposed at least partially within the sheath. Coupled to the blade may be at least one ultrasonic transducer, which, in turn, may be coupled to a drive system. The drive system may be configured to deliver gross axial motions to the blade such that the blade translates with respect to the hollow sheath when the drive system is activated. Accordingly, tissue may be cut by the blade with gross axial movement of the blade and/or ultrasonic vibrational motion provided by the ultrasonic transducer(s). In alternative embodiments, the blade may be rotated axially instead of translated with respect to the hollow sheath.
摘要:
An ultrasonic surgical instrument that supports an ultrasonically excited blade and an outer sheath that can be selectively rotated relative to each other to bring a distal cutting tip of the blade into contact with at least one cutting surface formed on a distal end of the outer sheath. In some embodiments, the distal cutting tip may contact two cutting surfaces located on opposing sides of an opening in the outer sheath through which the distal cutting tip protrudes. Tissue pads may be attached to the cutting surfaces. Various embodiments also include at least one suction lumen.