Ablation check pulse routine and integration for electroporation

    公开(公告)号:US11633121B2

    公开(公告)日:2023-04-25

    申请号:US15669048

    申请日:2017-08-04

    申请人: Medtronic, Inc.

    发明人: Brian T. Howard

    摘要: Devices, systems, and methods relating to a low-voltage, pre-treatment pulse routine for evaluating a potential for non-target tissue damage from the delivery of energy, such as electroporation energy to an area of target tissue. In one embodiment, a medical system includes a medical device having a treatment element; and a control unit in communication with the medical device, the control unit being configured to: deliver a low-voltage, pre-treatment pulse routine through the treatment element to an area of target tissue; determine whether the low-voltage, pre-treatment pulse routine has a stimulation effect on an area of non-target tissue; and deliver an ablation energy routine through the treatment element to the area of target tissue when the control unit determines that the low-voltage, pre-treatment pulse routine does not have a stimulation effect on the area of non-target tissue.

    THERMAL SYSTEM WITH OVERSHOOT REDUCTION

    公开(公告)号:US20230111328A1

    公开(公告)日:2023-04-13

    申请号:US18080341

    申请日:2022-12-13

    摘要: A thermal control unit for controlling a patient's temperature includes a fluid outlet for delivering temperature-controlled fluid to a patient, a pump, a heat exchanger, and a controller that automatically pauses thermal treatment of the patient prior the patient reaching a target temperature. During the pause, the controller assesses a reaction of the patient and changes a temperature of the fluid only inside the thermal control unit if the patient is likely to reach the target temperature without further thermal treatment. However, if the patient is unlikely to reach the target temperature without further thermal treatment, the controller restarts the thermal treatment. The controller may pause thermal treatment again prior to reaching the target temperature and assess the patient's reaction. In some embodiments, the controller may selectively include and exclude a fluid reservoir in a circulation channel within the thermal control unit.

    Catheter Devices for Defunctionalization of a Gallbladder, and Systems and Methods Thereof

    公开(公告)号:US20230090573A1

    公开(公告)日:2023-03-23

    申请号:US17865469

    申请日:2022-07-15

    IPC分类号: A61B18/02 A61M25/10 A61B18/14

    摘要: Provided herein is an apparatus having a first tubular body, a second tubular body disposable within the first tubular body, a first plurality of fenestrations in fluid communication with a gallbladder lumen, and an expandable body disposed around the first plurality of fenestrations. The first plurality of fenestrations is configured to deliver a phase changing ablation medium by spraying the phase changing ablation medium in a spatially diffuse pattern into the space defined by the expandable body between the first plurality of fenestrations and the wall of the gallbladder. The first tubular body and the second tubular body define an annular flow path. A pressure sensor measures intraluminal pressure of the gallbladder. A control unit is coupled to the pressure sensor.

    N2O thermal pressurization system by cooling

    公开(公告)号:US11607262B2

    公开(公告)日:2023-03-21

    申请号:US16869703

    申请日:2020-05-08

    IPC分类号: A61B18/02 F25B13/00 F25J1/02

    摘要: A system and method of using a source of low-pressure refrigerant for a cryotherapy procedure. The system may generally include a fluid reservoir and a fluid flow path in thermal exchange with the fluid reservoir, the fluid flow path including a thermal exchange device in thermal exchange with the fluid reservoir, a compressor in fluid communication with the thermal exchange device, a condenser, a reversing valve located between the compressor and the condenser, and an expansion valve located between the condenser and the thermal exchange device. The method may include transferring a low-pressure refrigerant to a first fluid reservoir, reducing the temperature of the refrigerant within the first fluid reservoir, increasing the temperature of the refrigerant within the first fluid reservoir, and transferring the pressurized refrigerant from the first fluid reservoir to a second fluid reservoir.

    DEVICES, SYSTEMS, AND METHODS FOR TREATING PULMONARY DISEASE

    公开(公告)号:US20230075509A1

    公开(公告)日:2023-03-09

    申请号:US18050144

    申请日:2022-10-27

    发明人: Martin Mayse

    摘要: Devices, systems, and methods for improving airflow within an airway. One example embodiment includes a method for treating a subject. The method includes (1) placing an expandable object into one or more airways of the bronchial tree of the subject, (2) expanding the expandable object within at least one of the one or more airways such that at least a portion of a wall of the one or more airways is expanded, and (3) placing a stent in the airway such that a portion of the stent is adjacent to the portion of the wall of the one or more expanded airways.