Devices, systems, and methods for obtaining a tissue sample

    公开(公告)号:US10695038B2

    公开(公告)日:2020-06-30

    申请号:US15018407

    申请日:2016-02-08

    Applicant: COVIDIEN LP

    Abstract: A biopsy assembly includes a catheter, a valve, a device having suction and pressure modes, and a loss of suction indicator. The catheter includes a proximal end, a distal end configured to capture a tissue sample, and defines a lumen therebetween. The valve defines a first port coupled to the device and a second port coupled to the proximal end of the catheter. When suction is applied to the first port, a suction path is defined from the distal end of the catheter through the lumen of the catheter and into the second port, such that the tissue sample is suctioned into the catheter. Upon loss of suction at the distal end, the pressure mode is used to define a pressure path from the first port to an open third port, expelling material therefrom. In the pressure mode, suction is maintained at the second port and catheter coupled thereto.

    Catheter having a sensor and an extended working channel

    公开(公告)号:US10575754B2

    公开(公告)日:2020-03-03

    申请号:US15228321

    申请日:2016-08-04

    Applicant: COVIDIEN LP

    Abstract: A flexible catheter includes an elongated body, and a sensor. The elongated body has proximal and distal end portions and defines a working channel therethrough. The sensor is disposed in the distal end portion of the elongated body and is adapted for detecting the position of a distal end of the elongated body within the anatomy of a patient. The sensor is formed from a wire that forms a first layer of wraps about the distal end portion of the elongated body and that includes first and second leads that form a twisted pair proximal to the first layer of wraps. The twisted pair of the first and second leads extends to the proximal end portion of the elongated body.

    MEDICAL INSTRUMENT WITH SENSOR FOR USE IN A SYSTEM AND METHOD FOR ELECTROMAGNETIC NAVIGATION

    公开(公告)号:US20210196146A1

    公开(公告)日:2021-07-01

    申请号:US17200998

    申请日:2021-03-15

    Applicant: Covidien LP

    Abstract: A medical instrument includes a sensor, a surface, at least one non-conductive material, and at least one pair of contacts. The sensor has at least one coil formed on a conductive material. The surface is suitable for receiving the sensor and can be placed in an EM field. The at least one non-conductive material covers the at least one coil of the sensor. The at least one pair of contacts are electrically connected to the at least one coil and connectable to a measurement device, which senses an induced electrical signal based on a magnetic flux change of the EM field. The location of the medical instrument in a coordinate system of the EM filed is identified based on the induced electrical signal in the sensor.

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