公开(公告)号：US11109838B2

公开(公告)日：2021-09-07

申请号：US15705321

申请日：2017-09-15

Applicant: ACIST Medical Systems, Inc.

Inventor： Thomas C. Moore ,  Kendall R. Waters ,  Stephanie J. Buech ,  Robert Zelenka

IPC: A61B8/12 ,  A61B18/14 ,  A61B90/00 ,  A61B1/313 ,  A61B17/00 ,  A61B18/00 ,  A61B18/02 ,  A61B8/00 ,  A61B8/08 ,  A61B34/00 ,  A61B1/00 ,  A61B1/233 ,  A61B1/273 ,  A61B1/018

Abstract: A catheter-based imaging system comprises a catheter having a telescoping proximal end, a distal end having a distal sheath and a distal lumen, a working lumen, and an ultrasonic imaging core. The ultrasonic imaging core is arranged for rotation and linear translation. The system further includes a patient interface module including a catheter interface, a rotational motion control system that imparts controlled rotation to the ultrasonic imaging core, a linear translation control system that imparts controlled linear translation to the ultrasonic imaging core, and an ultrasonic energy generator and receiver coupled to the ultrasonic imaging core. The system further comprises an image generator coupled to the ultrasonic energy receiver that generates an image.

公开(公告)号：US10905851B2

公开(公告)日：2021-02-02

申请号：US13833919

申请日：2013-03-15

Applicant: ACIST Medical Systems, Inc.

Inventor： Robert Zelenka ,  Ruth E. Beeby ,  Kendall R. Waters

IPC: A61M25/00 ,  A61B8/12 ,  B29C71/00 ,  B29C71/02

Abstract: A catheter a first sheath having a proximal end and a distal end, and a length extending between the proximal end and the distal end. The first sheath being devoid of any bonds between the proximal end and the distal end, and a flexural modulus of the first sheath varying along the length. A method of making a catheter having more than one flexural modulus.

公开(公告)号：US09782148B2

公开(公告)日：2017-10-10

申请号：US13687801

申请日：2012-11-28

Applicant: ACIST MEDICAL SYSTEMS INC.

Inventor： Kendall R. Waters ,  Thomas C. Moore ,  Robert Zelenka ,  Richard Bautista

IPC: A61B8/12 ,  A61B18/18 ,  A61B18/14 ,  A61B8/00 ,  A61B17/00 ,  A61B18/00 ,  A61B34/00 ,  A61B90/00

CPC classification number: A61B8/12 ,  A61B8/445 ,  A61B18/1492 ,  A61B18/18 ,  A61B2017/00318 ,  A61B2018/00577 ,  A61B2018/00982 ,  A61B2034/254 ,  A61B2090/3784 ,  A61B2218/002

Abstract: An ultrasound catheter includes an elongated body, a first and second ablation element each configured to ablate soft tissue and an imaging core having an ultrasound transducer. In another example, an ultrasound catheter includes an elongated body, a RF ablator configured to ablate soft tissue at a frequency less than 1 MHz, and an ultrasound transducer configured to image at a frequency greater than or equal to 10 MHz. In another example, an ultrasound catheter apparatus includes an ultrasound catheter having an ablator and an ultrasound transducer, and a graphical user interface displayed using a computer processor. The graphical user interface displays a real-time image of a treatment area and the ultrasound catheter, and a chart displaying ablation as a function of time, the chart being updated in real-time.

公开(公告)号：US11109836B2

公开(公告)日：2021-09-07

申请号：US15406083

申请日：2017-01-13

Applicant: ACIST MEDICAL SYSTEMS, INC.

Inventor： Jason F. Hiltner ,  Kendall R. Waters ,  Thomas C. Moore ,  Robert Zelenka

IPC: A61B8/00 ,  A61B5/0215 ,  A61B8/12 ,  A61B5/107 ,  A61B5/026 ,  A61B5/00 ,  A61B8/06

Abstract: Embodiments of the present invention allow more full characterization of a stenotic lesion by measuring both pressure drop across the stenotic lesion and the size of the vessel lumen adjacent the stenotic lesion, both with sensors delivered intravascularly to the stenotic lesion site. In preferred embodiments, the size (e.g., inner diameter, cross-sectional profile) of the vessel lumen adjacent the stenotic lesion can be measured via one or more intravascular ultrasound transducers. In preferred embodiments, the intravascular ultrasound transducer(s) can be delivered to the site of the stenotic lesion with the same delivery device that carries the pressure transducer(s).

公开(公告)号：US11109833B2

公开(公告)日：2021-09-07

申请号：US15599000

申请日：2017-05-18

Applicant: ACIST Medical Systems, Inc.

Inventor： Sidney Donald Nystrom ,  Kendall R. Waters ,  Edward R. Miller

IPC: A61B8/12 ,  A61B5/06 ,  A61B8/00 ,  A61B5/0215 ,  A61B8/06 ,  A61B8/08 ,  A61B8/04 ,  A61B5/00 ,  G01S15/89

Abstract: Intravascular systems can include a catheter having a proximal end, a distal end, a sensor located at the distal end configured to provide sensor information representative of one or more intravascular properties of a patient, and a plurality of magnetic domains. A magnetic pickup can be configured to output a pickup signal based on the magnetic field at the magnetic pickup produced by the plurality of magnetic domains. An intravascular processing engine can be in communication with the catheter sensor and the magnetic pickup. The intravascular processing engine can receive sensor information from the sensor and a position signal representative of the pickup signal. The intravascular processing engine can be used to determine position information related to the position of the catheter sensor and combine the received sensor information and corresponding determined position information.

公开(公告)号：US10909661B2

公开(公告)日：2021-02-02

申请号：US14878288

申请日：2015-10-08

Applicant: ACIST Medical Systems, Inc.

Inventor： Kendall R. Waters ,  Joseph A. Jamello

IPC: G06K9/40 ,  G06T5/00 ,  A61B8/08 ,  A61B5/00 ,  A61B8/12 ,  G06T11/00 ,  G06T5/50 ,  A61B8/00 ,  G06T5/20 ,  G06T7/00 ,  A61B5/02

Abstract: Systems and methods to reduce near-field artifacts from intravascular images. Disclosed systems and methods are adapted to automatically identify near-field image artifacts in imaging data and generate an enhanced intravascular image by reducing near-field image artifacts.

公开(公告)号：US09610425B2

公开(公告)日：2017-04-04

申请号：US14507438

申请日：2014-10-06

Applicant: ACIST Medical Systems, Inc.

Inventor： Kendall R. Waters ,  Thomas C. Moore ,  Robert Zelenka ,  Paul Zalesky

IPC: A61B8/14 ,  A61B8/12 ,  A61B8/00 ,  A61M25/00 ,  A61M25/01 ,  A61B8/08 ,  A61M25/06

CPC classification number: A61M25/0133 ,  A61B8/0883 ,  A61B8/12 ,  A61B8/445 ,  A61B8/5223 ,  A61M25/0084 ,  A61M25/0662 ,  A61M2025/0089 ,  A61M2025/0166 ,  A61M2025/0175 ,  A61M2025/0681 ,  A61M2210/125

Abstract: Methods of providing image-guided transendocardial injection of a therapeutic agent into a left ventricular wall of a heart. Some methods enable injections into heart tissue under visualization. The methods may include providing an endoventricular injection catheter having integrated echocardiographic capability. The endoventricular injection catheter may have an imaging core and an injection system carried on the elongated body with the imaging core. The method may include positioning the endoventricular injection catheter into the left ventricle of the heart, which inserts the imaging core into the heart. The method may also include transmitting ultrasonic energy via the imaging core, receiving reflected ultrasonic energy at the distal end, visualizing the left ventricular wall of the heart using the imaging core, identifying infarct regions of the left ventricle, and injecting a therapeutic agent into the visualized infarcted regions of the left ventricle using the injection system.

公开(公告)号：US11109766B2

公开(公告)日：2021-09-07

申请号：US13902224

申请日：2013-05-24

Applicant: ACIST Medical Systems, Inc.

Inventor： Robert F. Wilson ,  Edward R. Miller ,  Sidney Donald Nystrom ,  Kendall R. Waters

IPC: A61B5/027 ,  A61B8/06 ,  A61B8/12 ,  A61B8/08 ,  A61B5/026 ,  A61B5/107 ,  A61B5/00 ,  A61B8/00 ,  A61M5/00 ,  A61B5/0205 ,  A61B5/0275 ,  A61M5/142 ,  A61M5/168

Abstract: This disclosure provides systems and methods for measuring fluid flow in a vasculature system of a patient. Some systems may include an injection system configured to inject a bolus of fluid into a vessel of a patient. Some systems may include a measurement engine configured to monitor the bolus of fluid in the vessel using measurement data generated by an intravascular measuring device. The measurement engine may determine a travel distance of the bolus of fluid and an elapsed time during which the bolus of fluid traversed the travel distance based on the measurement data. A fluid flow rate (e.g., velocity, volumetric flow) of the vessel may be calculated using the travel distance and the elapsed time.

公开(公告)号：US20180042575A1

公开(公告)日：2018-02-15

申请号：US15725564

申请日：2017-10-05

Applicant: ACIST Medical Systems, Inc.

Inventor： Thomas C. Moore ,  Kendall R. Waters ,  J. Steve Reynolds ,  Duc H. Lam ,  Donald Masters

IPC: A61B8/00 ,  A61B8/12 ,  A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B5/06 ,  G01S15/10

CPC classification number: A61B8/4461 ,  A61B5/06 ,  A61B8/0833 ,  A61B8/0891 ,  A61B8/12 ,  A61B8/445 ,  A61B8/463 ,  G01S7/52071 ,  G01S7/52074 ,  G01S15/102 ,  G01S15/8952 ,  G06T7/0012 ,  G06T7/30

Abstract: An intravascular ultrasound imaging system comprises a catheter having an elongated body having a distal end and an imaging core arranged to be inserted into the elongated body. The imaging core is arranged to transmit ultrasonic energy pulses and to receive reflected ultrasonic energy pulses. The system further includes an imaging engine coupled to the imaging core and arranged to provide the imaging core with energy pulses to cause the imaging core to transmit the ultrasonic energy pulses. The energy pulses are arranged in repeated sequences and the energy pulses of each sequence have varying characteristics. The reflected pulses may be processed to provide a composite image of images resulting from each different characteristic.

公开(公告)号：US20180000449A1

公开(公告)日：2018-01-04

申请号：US15705321

申请日：2017-09-15

Applicant: ACIST Medical Systems, Inc.

Inventor： Thomas C. Moore ,  Kendall R. Waters ,  Stephanie J. Buech ,  Robert Zelenka

IPC: A61B8/00 ,  A61B1/273 ,  A61B1/313 ,  A61B18/14 ,  A61B1/00 ,  A61B8/12 ,  A61B1/233 ,  A61B8/08 ,  A61B18/02 ,  A61B17/00 ,  A61B18/00

CPC classification number: A61B8/445 ,  A61B1/00082 ,  A61B1/018 ,  A61B1/233 ,  A61B1/2733 ,  A61B1/3137 ,  A61B8/0841 ,  A61B8/0883 ,  A61B8/12 ,  A61B8/4461 ,  A61B8/4466 ,  A61B8/4494 ,  A61B8/5223 ,  A61B8/5253 ,  A61B18/1492 ,  A61B34/25 ,  A61B90/37 ,  A61B2017/00243 ,  A61B2017/00557 ,  A61B2017/00991 ,  A61B2018/00577 ,  A61B2018/00982 ,  A61B2018/0212 ,  A61B2090/3784

Abstract: A catheter-based imaging system comprises a catheter having a telescoping proximal end, a distal end having a distal sheath and a distal lumen, a working lumen, and an ultrasonic imaging core. The ultrasonic imaging core is arranged for rotation and linear translation. The system further includes a patient interface module including a catheter interface, a rotational motion control system that imparts controlled rotation to the ultrasonic imaging core, a linear translation control system that imparts controlled linear translation to the ultrasonic imaging core, and an ultrasonic energy generator and receiver coupled to the ultrasonic imaging core. The system further comprises an image generator coupled to the ultrasonic energy receiver that generates an image.