INSERTABLE ULTRASOUND PROBES, SYSTEMS, AND METHODS FOR THERMAL THERAPY
First Claim
1. A method for producing hemostasis, tissue closure, and/or vessel closure following a percutaneous medical procedure wherein an access device is introduced to a patient creating a passageway, said method comprising the step of:
- a) inserting an introducer sheath transcutaneously into an artery, thereby creating the passageway and an arteriotomy;
b) inserting a catheter through the passageway and arteriotomy to perform a transcatheter procedure;
c) inserting a thermal delivery probe into the passageway;
d) ultrasonically interrogating a section of the passageway using pulsed Doppler;
e) advancing the thermal delivery probe down the passageway until the pulsed Doppler indicates that the probe is at a pre-determined distance from the arteriotomy;
f) emitting sufficient thermal energy to the arteriotomy site in order to raise native tissue temperatures; and
g) inducing tissue and/or blood coagulation at the site.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein are methods and systems for producing hemostasis, tissue closure, or vessel closure by inserting a thermal delivery probe into a passageway and emitting thermal energy from the probe to produce the hemostasis or tissue closure. These methods and systems may be used following a percutaneous medical procedure that creates a passageway in tissue of patient, such as is caused by introduction of an access device into the patient. The thermal delivery probe may have one or more ultrasound transducers positioned in an elongated shaft.
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Citations
20 Claims
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1. A method for producing hemostasis, tissue closure, and/or vessel closure following a percutaneous medical procedure wherein an access device is introduced to a patient creating a passageway, said method comprising the step of:
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a) inserting an introducer sheath transcutaneously into an artery, thereby creating the passageway and an arteriotomy; b) inserting a catheter through the passageway and arteriotomy to perform a transcatheter procedure; c) inserting a thermal delivery probe into the passageway; d) ultrasonically interrogating a section of the passageway using pulsed Doppler; e) advancing the thermal delivery probe down the passageway until the pulsed Doppler indicates that the probe is at a pre-determined distance from the arteriotomy; f) emitting sufficient thermal energy to the arteriotomy site in order to raise native tissue temperatures; and g) inducing tissue and/or blood coagulation at the site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for producing hemostasis and tissue closure following a percutaneous medical procedure wherein an access device is introduced to a patient creating a passageway, said method comprising the following step:
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a) inserting an introducer sheath transcutaneously into an artery, thereby creating the passageway and an arteriotomy; b) inserting a catheter through the passageway and arteriotomy to perform a transcatheter procedure; c) inserting a ultrasound probe into the passageway; d) ultrasonically interrogating a section of the passageway using pulsed Doppler; e) advancing the thermal delivery probe down the passageway until the pulsed Doppler indicates that the probe is at a pre-determined distance from the arteriotomy; f) emitting sufficient focused high intensity focused ultrasound energy to the arteriotomy site in order to raise native tissue temperatures; and g) inducing tissue and/or blood coagulation at the site. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A therapeutic medical device adapted to be inserted into a tissue passageway following a percutaneous medical procedure, comprising:
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a) an elongated shaft having a proximal section, a distal section, a distal tip, at least one lumen extending longitudinally from the distal tip to a proximal end located in the proximal section, a first opening in the proximal section in communication with the lumen, and a second opening on the distal tip in communication with the lumen, wherein the first and second openings and the lumen are configured such that the shaft may be threaded over a guidewire extending through the first opening and lumen and out the second opening; b) a means for locating and determining a site at which thermal energy should be applied to promote hemostasis; and c) a means for emitting sufficient thermal energy to the site thereby raising native tissue temperatures thereby inducing tissue and/or blood coagulation.
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19. An insertable probe for delivering thermal energy comprising:
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a) a elongated shaft having a proximal end, a distal end, at least one lumen extending longitudinally from said proximal end to said distal end, a first opening in the proximal section in communication with the lumen, and a second opening in the distal end in communication with the lumen, wherein the first and second openings and the lumen are configured such that the shaft may be threaded over a guidewire extending through the first opening and lumen and out the second opening; and b) one or more ultrasound transducers positioned in the elongated shaft;
said one or more ultrasound transducers comprising at least one therapeutic ultrasound transducer configured to emit high intensity ultrasound. - View Dependent Claims (20)
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Specification