摘要:
An apparatus and method for an ultrasonic medical device with a variable frequency drive for ablating a biological material comprises an ultrasonic probe having a proximal end, a distal end and a longitudinal axis therebetween; a transducer that drives the ultrasonic probe over a variable frequency range, creating a transverse ultrasonic vibration along at least a portion of the longitudinal axis of the ultrasonic probe; a coupling engaging the proximal end of the ultrasonic probe to a distal end of the transducer; and an ultrasonic energy source engaged to the transducer that produces an ultrasonic energy, wherein driving the ultrasonic probe over the variable frequency range allows for the ultrasonic energy to propagate around a bend of the ultrasonic probe to ablate the biological material in communication with the ultrasonic probe.
摘要:
The present invention provides an apparatus and a method for an ultrasonic medical device having a flexible material engaging an ultrasonic probe. The flexible material surrounds a portion of a longitudinal axis of an ultrasonic probe of the ultrasonic medical device. The flexible material may extend beyond a probe tip. The flexible material cushions a tip of the ultrasonic probe and reduces the stresses on the ultrasonic probe as the ultrasonic probe is navigated within the vasculature. The ultrasonic probe may be shaped to increase a radial span of the ultrasonic medical device. In a preferred embodiment of the present invention, the flexible material comprises a polymer material. Additionally, the flexible material may have a high radiopacity.
摘要:
An apparatus and a method for using an ultrasonic medical device to reinforce bone. An ultrasonic medical device ablates a marrow in a bone to create a channel in the bone for injection of a bone supporting compound to reinforce and strengthen the bone. An ultrasonic probe of the ultrasonic medical device is inserted through an introducer and into the bone to engage the marrow. An ultrasonic energy source is activated to provide an ultrasonic energy to the ultrasonic probe to ablate the marrow. The ultrasonic probe is moved within the bone to ablate the marrow in the bone and create the channel in the bone. A bone supporting compound is injected into the channel to reinforce the bone.
摘要:
An apparatus and method for using an ultrasonic medical device to treat chronic total occlusions comprises an ultrasonic probe, a transducer, a coupling engaging a proximal end of the ultrasonic probe to a distal end of the transducer and an ultrasonic energy source engaged to the transducer. The ultrasonic probe is inserted into a vasculature and placed in communication with the chronic total occlusion. The ultrasonic energy source produces an ultrasonic energy that is transmitted to the transducer, where the transducer creates a transverse ultrasonic vibration along the ultrasonic probe. The transverse ultrasonic vibration creates a plurality of transverse nodes and a plurality of transverse anti-nodes along the longitudinal axis of the ultrasonic probe, creating cavitation along a portion of the longitudinal axis of the ultrasonic probe to ablate the chronic total occlusion.
摘要:
An apparatus and method for using an ultrasonic medical device to treat coronary thrombus bearing lesions comprises an ultrasonic probe, a transducer, a coupling engaging a proximal end of the ultrasonic probe to a distal end of the transducer and an ultrasonic energy source engaged to the transducer. The ultrasonic probe is inserted into a vasculature in communication with the coronary thrombus bearing lesion. The ultrasonic energy source produces energy that is transmitted to the transducer, which generates a transverse ultrasonic vibration along the ultrasonic probe. The transverse ultrasonic vibration creates a plurality of transverse nodes and a plurality of transverse anti-nodes along the longitudinal axis of the ultrasonic probe, creating cavitation along a portion of the longitudinal axis of the ultrasonic probe to ablate the coronary thrombus bearing lesion.
摘要:
An apparatus and method for an ultrasonic medical device having an ultrasonic probe with a small proximal end to facilitate over the ultrasonic probe exchanges in a time efficient manner. The ultrasonic probe is inserted into a vasculature and moved to a treatment site of an occlusion. A coupling engaging the ultrasonic probe to a transducer is disengaged to expose a small diameter at the proximal end of the ultrasonic probe. A vascular intervention device is placed over the small diameter at the proximal end and moved along a longitudinal axis of the ultrasonic probe while the ultrasonic probe remains in an approximately fixed position in the vasculature. In a preferred embodiment, the ultrasonic probe acts a guidewire for over the ultrasonic probe exchanges of various vascular intervention devices.
摘要:
A conveyor system for a powder paint spray booth including spaced continuous parallel first and second moving belts supported by a plurality of spaced rollers enclosed within a sealed housing and a powder paint collector located below the powder paint spray booth which receives powder paint from between the sealed housings. The continuous belts are formed of stainless steel each having a width of less than ten inches and grating is provided between the housings permitting personnel to walk over the conveyor system without damaging the stainless steel belts. The collector system includes a V-shape baffle having an apex located between the conveyor housings directing powder paint into collectors on opposed'sides of the conveyor units.
摘要:
The present invention provides an apparatus and a method for an ultrasonic medical device operating in a torsional mode to treat a biological material. An ultrasonic probe of the ultrasonic medical device is placed in communication with the biological material. An ultrasonic energy source is activated to produce an electrical signal that drives a transducer to produce a torsional vibration of the ultrasonic probe. The torsional vibration produces a rotation and a counterrotation along the longitudinal axis of the ultrasonic probe that creates a plurality of torsional nodes and a plurality of torsional anti-nodes along a portion of the longitudinal axis of the ultrasonic probe resulting in cavitation along a portion of the longitudinal axis of the ultrasonic probe comprising a radially asymmetric cross section that ablates the biological material.
摘要:
An apparatus and method for an ultrasonic medical device to treat peripheral artery disease. The ultrasonic medical device comprises an ultrasonic probe having a proximal end, a distal end and a longitudinal axis therebetween. The ultrasonic probe is inserted into an insertion point in a leg opposite the leg having an occlusional deposit and is moved adjacent to the occlusional deposit. An ultrasonic energy source is activated to generate a transverse ultrasonic vibration along at least a portion of the longitudinal axis of the ultrasonic probe. The transverse ultrasonic vibration creates a plurality of transverse nodes and a plurality of transverse anti-nodes along the longitudinal axis of the ultrasonic probe, generating cavitation in a medium surrounding the ultrasonic probe to ablate the occlusional deposit causing peripheral artery disease.
摘要:
A method for removing an occlusion is provided comprising introducing a transverse mode ultrasonic probe into a blood vessel, positioning the probe in proximity to the occlusion, and transmitting ultrasonic energy to the probe, until the occlusion is removed. The probe has a small cross-sectional lumen and is articulable for navigating in a tortuous vessel path. The probe can be used with acoustic and/or aspirations sheaths to enhance destruction and removal of an occlusion. The probe can also be used with a balloon catheter. The probe, sheaths, and catheter can be provided in a sharps container which further provides a means of affixing and detaching the probe from an ultrasonic medical device.