摘要:
A surgical shield includes an at least partially rigid shield member extending in at least two spatial dimensions, at least one flexible sheet member, and a coupling element. The shield member has an aperture traversable by a surgical instrument, while the coupling element is provided on the shield member for releasably connecting the shield member to the instrument. The flexible sheet member is attached to the shield member so as to define, with the shield member, an enclosure having one open side opposing the shield member.
摘要:
A surgical method utilizes a cutting blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch and preferably between about 0.001 inch and 0.010 inch. The blade is moved in contact with relatively hardly tissues which are disposed adjacent to softer tissues at a surgical site in a patient. The blade is ultrasonically vibrated during the moving of the blade, whereby the hard tissue is cut with a modicum of damage being inflicted on the soft tissue.
摘要:
An ultrasonically excitable tool or probe is provided with a central bore, and a coupling for attachment to an ultrasonic transducer also provided with a central bore. Fluid may be injected along the communicating bores for filling a bowl or concavity on a distal end of the tool. Upon energization of the transducer, fluid in the concavity serves as a conventional ultrasonic cleaning bath for depending parts which the tool may be raised to accommodate in the concavity. This cleaning may be achieved in a confined space where the presence of the transducer is impossible or impermissible, which is further facilitated by the existence of an extended handle or shaft portion, containing the bore, on the ultrasonic tool. A particular shape of the concavity is found to have unexpected utility in creating and focussing an atomized spray.
摘要:
An ultrasonic medical treatment device has a casing, an elongate probe, a transducer assembly, a sheath and at least one electrode member. The probe is mounted to and extends from the casing and has an axis and a free end serving as an operative tip. The transducer assembly is mounted to the casing and is operatively connected to the probe for generating vibrations of at least one ultrasonic frequency in the probe. The sheath surrounds the probe. The electrode member is connectable to an RF voltage source and is mounted at least indirectly to the casing so as to permit relative motion between the electrode member and the probe.
摘要:
An elongate probe, with a suction channel extending longitudinally along the probe, is inserted into a patient so that a distal tip of the probe is in contact with a fibroid mass inside the patient. Thereafter the probe is ultrasonically vibrated so that the distal tip has an excursion amplitude or distance greater than 275 microns. During probe vibration, suction is applied to the channel at a vacuum level greater than 24″ Hg to thereby maintain the target tissue mass in engagement with the distal tip during the vibrating of the probe and enable ablation of at least a selectable portion of the target tissue mass.
摘要:
An ultrasonic medical probe comprises an elongate shaft formed integrally with a head portion having a distal end face oriented at least partially transversely to a longitudinal axis of the shaft. The shaft is provided with an internal longitudinal channel or bore extending to the end face. The end face is formed with an indentation communicating with the channel or bore at a distal end thereof, whereby liquid is guided over an extended surface of the end face relative to the channel or bore. The head portion also has a lateral surface extending substantially parallel to the longitudinal axis of the probe. The lateral surface is provided with at least one outwardly or radially extending projection. The projection enables the application of ultrasonic cavitation energy to a tissue surface that is in contact with the lateral or side surface of the probe head.
摘要:
An elongate probe, with a suction channel extending longitudinally along the probe, is inserted into a patient so that a distal tip of the probe is in contact with a fibroid mass inside the patient. Thereafter the probe is ultrasonically vibrated so that the distal tip has an excursion amplitude or distance greater than 275 microns. During probe vibration, suction is applied to the channel at a vacuum level greater than 24″ Hg to thereby maintain the target tissue mass in engagement with the distal tip during the vibrating of the probe and enable ablation of at least a selectable portion of the target tissue mass.