EM TRACKING SYSTEMS FOR USE WITH ULTRASOUND AND OTHER IMAGING MODALITIES
First Claim
1. An instrument arranged for insertion into the body of a patient for use in an image-guided procedure on the patient, the position of the instrument to be tracked with respect to the patient by an EMT system, said instrument comprising an EM sensor, and a first member, said first member comprising a first handle and an elongated linear stylet secured to and projecting from said first handle, said linear stylet having a distal tip portion and a hollow interior cavity terminating adjacent said distal tip portion, said EM sensor having an electrical cable connected to said sensor, said sensor being located in said cavity adjacent said distal tip portion of said stylet, said electrical cable extending along the length of and out of said cavity, said sensor and said associated cable being arranged to be removed from said cavity of said stylet for reuse.
1 Assignment
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Accused Products
Abstract
An EMT system for use in ultrasound and other imaging modality guided medical procedures. The system includes a tool set of various components to which EM sensors can be releasably secured. Thus, the sensors can be reused, notwithstanding the disposal of other components of the tool set. Various components of the tool set include keying elements to facilitate their registration to the anatomy of the patient undergoing the procedure via the EM sensors.
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Citations
54 Claims
- 1. An instrument arranged for insertion into the body of a patient for use in an image-guided procedure on the patient, the position of the instrument to be tracked with respect to the patient by an EMT system, said instrument comprising an EM sensor, and a first member, said first member comprising a first handle and an elongated linear stylet secured to and projecting from said first handle, said linear stylet having a distal tip portion and a hollow interior cavity terminating adjacent said distal tip portion, said EM sensor having an electrical cable connected to said sensor, said sensor being located in said cavity adjacent said distal tip portion of said stylet, said electrical cable extending along the length of and out of said cavity, said sensor and said associated cable being arranged to be removed from said cavity of said stylet for reuse.
- 10. A device for releasable mounting on an elongated, linear medical instrument, used in an ultrasound-guided procedure on a patient, the procedure being carried out by an ultrasound transducer to enable the position of the instrument to be tracked with respect to a patient by an EMT system, said device comprising a housing and an EM sensor, said housing mounting said sensor and being releasably securable to the instrument at various positions along the length of the instrument, said housing comprising a first keying member arranged to be releasably coupled to the ultrasound transducer to enable the EMT system to register said sensor with respect to the ultrasound transducer.
- 18. A instrument guide for use on an ultrasound transducer in an ultrasound-guided procedure on a patient by an elongated linear instrument, said instrument guide forming a portion an EMT system and being arranged to receive the instrument, the EMT system comprising a sensor including a housing having a first keying member, said instrument guide including a first keying member adapted to be releasably coupled to the first keying member of the sensor to enable the EMT system to register the sensor with respect to the ultrasound transducer.
- 22. An EMT system for use in an ultrasound-guided procedure on a patient by an elongated linear instrument comprising a first component adapted for mounting on an ultrasound transducer and a second component including an EM sensor, said first component being arranged to receive the instrument, said second component comprising a sensor including a housing, said housing comprising a first keying member, said first component comprising a first keying member adapted to be releasably coupled to said first keying member of said second component to enable the EMT system to register said sensor with respect to the ultrasound transducer.
- 34. An EMT system for use in an image guided procedure on a patient comprising a first component and a second component, said first component comprising a marker adapted for securement to the patient, said second component comprising a sensor including a housing, said housing comprising a first keying member, said marker comprising a first keying member adapted to cooperate with said first keying member of said second component to enable the registration of the marker with respect to the body of the patient.
- 38. A bracket for use on an ultrasound transducer to releasably mount a needle guide thereon, the needle guide comprising a body having an inner surface, a pivot member located adjacent the inner surface and a pair of spaced-apart arms projecting outward from the front surface, each of the arms including a flanged tip at the free end thereof, said bracket being arranged to be releasably mounted on the transducer and comprising a body having a guide-receiving surface, a pair of undercut surfaces located on opposite sides of said guide-receiving surface, and a pivot member located adjacent said guide-receiving surface, said pivot member of said bracket establishing a pivot axis and being arranged to cooperate with the pivot member of the needle guide to enable the needle guide to be pivoted about said pivot axis, whereupon the flanged tips of the spaced apart arms of the needle guide snap fit into releasable securement with respective ones of said undercut surfaces of said bracket to releasably secure the needle guide on said bracket.
- 45. A needle guide for use with an ultrasound transducer on which a bracket is mounted, the bracket being arranged to be releasably mounted on the transducer and comprising a body having a guide-receiving surface, a pair of undercut surfaces located on opposite sides of the guide-receiving surface, and a pivot member located adjacent the guide-receiving surface, said needle guide being arranged to be releasably mounted on the bracket and comprising a body having an inner surface, a pivot member located adjacent the inner surface and a pair of spaced-apart arms projecting outward from the front surface, each of said spaced-apart arms including a flanged tip at the free end thereof, said pivot member of said needle guide establishing a pivot axis and being arranged to cooperate with the pivot member of said bracket to enable said needle guide to be pivoted about said pivot axis, whereupon said flanged tips of said spaced-apart arms of said needle guide snap fit into releasable securement with respective ones of the undercut surfaces of the bracket to releasably secure said needle guide on the bracket.
- 49. An EMT system for use in an image-guided procedure on a patient comprising a marker adapted for securement to the patient and a sensor-equipped adaptor arranged to be coupled to said marker, said sensor-equipped adaptor comprising a housing and a sensor, said housing comprising a first keying member in the form of a projection, said marker comprising a first keying member in the form of an opening, said opening of said marker being arranged to receive said projection of said housing to couple said marker to said adaptor to enable the registration of said marker with respect to the body of the patient.
- 52. A marker for use with an EMT system in an image-guided procedure on a patient, the EMT system comprising a sensor-equipped adaptor including a housing and a sensor, the housing comprising a first keying member in the form of a projection, said marker being adapted for securement to the patient and comprising a first keying member in the form of an opening, said opening of said marker being arranged to receive the projection of the housing to couple said marker to the adaptor to enable the registration of said marker with respect to the body of the patient.
Specification