Abstract:
Apparatus for locating a tissue within a body of a subject includes an acoustic tag configured to be fixed to the tissue and adapted, responsive to acoustic waves incident thereon, to return acoustic echoes. Acoustic transducers are placed at respective positions so as to direct the acoustic waves into the body toward the tissue and to receive the acoustic echoes returned from the tag responsive to the acoustic waves, generating first signals responsive to the received echoes. Transducer position sensors are coupled respectively to the acoustic transducers so as to generate second signals indicative of the respective positions of the acoustic transducers in an external frame of reference. A processing unit processes the first signals and the second signals so as to determine coordinates of the acoustic tag in the external frame of reference.
Abstract:
The problem of accessing an injection port transcutaneously is resolved using wireless position transducers in an inflation port assembly and in an injection syringe. The measurements provided by the transducers indicate to the practitioner the position and orientation of syringe relative to the injection port. A console provides a visual indication of the relative position and orientation so as to guide the practitioner to insert the syringe at the proper site and in the proper direction and to penetrate the port cleanly and correctly.
Abstract:
A method for performing a procedure at the fossa ovalis in the septal wall of the heart includes the steps of providing a sheath having a body wherein the body has a lumen extending therethrough and an open end at a distal end of the body. The body also has at least one electrode at the distal end of the body. The fossa ovalis in the septal wall is identified by using the at least one electrode of the sheath.
Abstract:
During a minimally invasive deployment of a mitral valvuloplasty device into the coronary sinus near realtime tracking of the device is monitored to determine whether the device is compressing the left circumflex coronary artery or is likely to do so. In one embodiment of the invention, one or more position sensors are included in the catheter that is used to deploy the constricting implant and or in the implant itself. The position of the device is determined during deployment, and compared to the location of the left circumflex coronary artery, which may be determined by mapping relative to a pre-acquired image or by simultaneous intracardiac ultrasound imaging.
Abstract:
A method for implanting a medical device between tissue comprises the steps of providing a catheter having a body and a distal end thereof wherein the catheter includes an implantable device comprising a housing having a proximal end and a distal end and a longitudinal axis. The implantable device further includes a first set of anchoring members operatively connected to the proximal end of the housing and a second set of anchoring members operatively connected to the distal end of the housing. Both sets of anchoring members are movable between a collapsed position and a deployed position. Each set of anchoring members includes ring members connected to a housing of the device. Further steps of the method include inserting the distal end of the catheter into tissue and disposing the medical device at least partially from the distal end of the catheter. The first set of anchoring members are moved from the collapsed position to the deployed position and one side of the tissue is engaged with the tissue engaging surfaces of each ring member of the first set of anchoring member. The medical device is further disposed completely from the distal end of the catheter wherein the second set of anchoring members are moved from the collapsed position to the deployed position and the other side of the tissue is engaged with the tissue engaging surfaces of each ring member of the second set of anchoring members.
Abstract:
An implantable medical device comprises a housing having a proximal end and a distal end and a longitudinal axis. A first set of anchoring members are operatively connected to the proximal end of the housing. A second set of anchoring members are operatively connected to the distal end of the housing. The first set of anchoring members and the second set of anchoring members are movable between a collapsed position and a deployed position. The collapsed position is defined as a position whereby the first set of anchoring members and the second set of anchoring members are substantially parallel to the longitudinal axis of the housing. The deployed position is defined as a position whereby the first set of anchoring members and the second set of anchoring members are substantially perpendicular to the longitudinal axis of the housing. Each anchoring member of the first set of anchoring members and the second set of anchoring members comprise a ring member wherein each ring member has a tissue engaging surface thereon.
Abstract:
A method for implanting a medical device between tissue comprises the steps of providing a catheter having a body and a distal end thereof wherein the catheter includes an implantable device comprising a housing having a proximal end and a distal end and a longitudinal axis. The implantable device further includes a first set of anchoring members operatively connected to the proximal end of the housing and a second set of anchoring members operatively connected to the distal end of the housing. Both sets of anchoring members are movable between a collapsed position and a deployed position. Each set of anchoring members includes ring members connected to a housing of the device. Further steps of the method include inserting the distal end of the catheter into tissue and disposing the medical device at least partially from the distal end of the catheter. The first set of anchoring members are moved from the collapsed position to the deployed position and one side of the tissue is engaged with the tissue engaging surfaces of each ring member of the first set of anchoring member. The medical device is further disposed completely from the distal end of the catheter wherein the second set of anchoring members are moved from the collapsed position to the deployed position and the other side of the tissue is engaged with the tissue engaging surfaces of each ring member of the second set of anchoring members.
Abstract:
A disaster response system includes a communication infrastructure including a plurality of sensor assemblies configured to generate data indicative of at least one of environmental conditions, motion, position, chemical detection, and medical information; and wirelessly provide the generated data to the communication infrastructure. The system also includes an incident command infrastructure configured to exchange data with the communication infrastructure; and detect an incident based on the data from the sensor assemblies. The system also includes an unmanned aerial vehicle (UAV) configured to deliver a payload in response to the detected incident.
Abstract:
Epicardial fat pad ablation is conducted using a catheter inserted through the chest wall, using ultrasound ablation, or using a catheter fitted with a directional ultrasound transducer and capable of being aligned with the epicardium. The epicardial fat pad locations are determined using noninvasive imaging methods, or using electrical maps. These locations are then displayed on maps or images of the heart, and thus targeted for minimally invasive or non invasive therapy. The methods of the present invention are less invasive than conventional methods of ablation, and permit flexible access to substantially any point on the epicardium.
Abstract:
Apparatus, including: a mockup probe, having a distal end and a proximal end adapted to be held by a human operator. The apparatus further includes a mockup patient, simulating an actual patient, the mockup patient having an aperture allowing penetration of the distal end of the mockup probe into the mockup patient. The apparatus includes a force generator, coupled to the mockup probe so as to apply a force to the proximal end that can be felt by the human operator, and a system controller. The controller is configured to: track a location of the distal end during the penetration thereof into the mockup patient, access an indication of a value of contractility of a region of an organ of the actual patient corresponding to the location, and activate the force generator so that the force applied to the proximal end corresponds to the indication.