Acoustic Back-Scattering Sensing Screw for Preventing Spine Surgery Complications
First Claim
1. A medical device comprising:
- an implantable instrument configured to be implanted in bone tissue, the implantable instrument having an internal chamber configured to house at least one transducer;
a transducer located within the internal chamber of the implantable instrument, the transducer configured to transmit a signal and to receive one or more reflections of that signal; and
a signal processing system configured to process the signals transmitted and received by the transducer so as to provide information indicative of the acoustic impedance of matter in the vicinity of the implantable instrument after it is implanted into the bone tissue based on the signals transmitted and received by the transducer.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical device having an implantable instrument configured to be implanted in bone tissue, the implantable instrument having an internal chamber configured to house at least one transducer; a transducer located within the internal chamber of the implantable instrument, the transducer configured to transmit a signal and to receive one or more reflections of that signal; and a signal processing system configured to process the signals transmitted and received by the transducer so as to provide information indicative of the acoustic impedance of matter in the vicinity of the implantable instrument after it is implanted into the bone tissue based on the signals transmitted and received by the transducer.
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Citations
54 Claims
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1. A medical device comprising:
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an implantable instrument configured to be implanted in bone tissue, the implantable instrument having an internal chamber configured to house at least one transducer; a transducer located within the internal chamber of the implantable instrument, the transducer configured to transmit a signal and to receive one or more reflections of that signal; and a signal processing system configured to process the signals transmitted and received by the transducer so as to provide information indicative of the acoustic impedance of matter in the vicinity of the implantable instrument after it is implanted into the bone tissue based on the signals transmitted and received by the transducer. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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6. The medical device of 5, wherein the plurality of apertures are arranged to receive a plurality of removable needles upon advancement of the medical instrument through bone tissue;
- a plurality of needles configured to be aligned with the surface of the distal tip of the medical instrument.
- 21. A medical device comprising an implantable instrument configured to be implanted in bone tissue, the implantable instrument having an internal chamber configured to house a transducer.
- 33. A medical device comprising a transducer configured to be inserted within an internal chamber of an implantable instrument, the transducer configured to transmit a signal and to receive one or more reflections of that signal based on the signals transmitted by the transducer.
- 41. A medical device comprising a signal processing system configured to process signals transmitted and received by a transducer that is inserted within an internal chamber of an implantable instrument, so as to provide information indicative of the acoustic impedance of matter in the vicinity of the implantable instrument after it is implanted into the bone tissue based on the signals transmitted and received by the transducer.
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50. A method of implanting an implantable instrument into bone tissue, comprising the steps of:
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inserting the implantable instrument into bone tissue having a transducer housed therein; and adjusting the position of the implantable instrument based on an electrical signal from the transducer. - View Dependent Claims (51, 52)
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53. A method of using a medical device comprising:
an implantable instrument configured to be implanted in bone tissue, the implantable instrument having an internal chamber configured to house at least one transducer; a transducer located within the internal chamber of the implantable instrument, the transducer configured to transmit a signal and to receive one or more reflections of that signal; and
a signal processing system configured to process the signals transmitted and received by the transducer so as to provide information indicative of the acoustic impedance of matter in the vicinity of the implantable instrument after it is implanted into the bone tissue based on the signals transmitted and received by the transducer,wherein, said method comprises the steps of; a. pre-sizing the diameter of the implantable instrument, b. determining the direction of the implantable instrument, c. pre-sizing the length of the implantable instrument, d. initializing the transducer to transmit acoustic broadband ultrasound backscatter values obtained for the outer cortex and marrow, e. configuring the signal processing system to detect the edge of the distal marrow-cortex, f. configuring the medical device to separate advancement of the implantable instrument from values transmitted by the transducer, g. monitoring the signal processing system for complications, h. removing the transducer from the internal chamber of the implantable instrument and inserting an interlocking core in the internal chamber. - View Dependent Claims (54)
Specification