Lumen-traveling biological interface device and method of use
First Claim
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1. A method of emplacing a cardiac stimulation device, comprising:
- causing an untethered self-propelling cardiac stimulation device to travel within a body tube tree of a subject toward a target site;
detecting with a sensor on the untethered self-propelling cardiac stimulation device a branch point including two or more branches within the body tube tree;
selecting a branch at the branch point at least partially based on detecting one or more of a pressure, a temperature, a blood flow, a direction of blood flow, a viscosity, a shear, a pH, and a presence or absence of a chemical;
upon detecting the branch point, causing the untethered self-propelling cardiac stimulation device to enter the branch leading toward the target site;
causing the untethered self-propelling cardiac stimulation device to stop traveling upon reaching the target site; and
delivering a cardiac stimulus at the target site.
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Abstract
Lumen-traveling biological interface devices and associated methods and systems are described. Lumen-traveling biological interface devices capable of traveling within a body lumen may include a propelling mechanism to produce movement of the lumen-traveling device within the lumen, electrodes or other electromagnetic transducers for detecting biological signals and electrodes, coils or other electromagnetic transducers for delivering electromagnetic stimuli to stimulus responsive tissues. Lumen-traveling biological interface devices may also include additional components such as sensors, an active portion, and/or control circuitry.
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Citations
20 Claims
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1. A method of emplacing a cardiac stimulation device, comprising:
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causing an untethered self-propelling cardiac stimulation device to travel within a body tube tree of a subject toward a target site; detecting with a sensor on the untethered self-propelling cardiac stimulation device a branch point including two or more branches within the body tube tree; selecting a branch at the branch point at least partially based on detecting one or more of a pressure, a temperature, a blood flow, a direction of blood flow, a viscosity, a shear, a pH, and a presence or absence of a chemical; upon detecting the branch point, causing the untethered self-propelling cardiac stimulation device to enter the branch leading toward the target site; causing the untethered self-propelling cardiac stimulation device to stop traveling upon reaching the target site; and delivering a cardiac stimulus at the target site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification