公开(公告)号：WO2021014171A2

公开(公告)日：2021-01-28

申请号：PCT/GB2020/051784

申请日：2020-07-24

Applicant: DP HOLDING (U.K) LIMITED

Inventor： SPENCER, Darren ,  BALMFORTH, Peter

IPC: A61B8/04 ,  A61B8/08 ,  A61B8/00 ,  A61B8/085 ,  A61B8/0891 ,  A61B8/4236 ,  A61B8/4272 ,  A61B8/4281 ,  A61B8/4411 ,  A61B8/4438 ,  A61B8/4455 ,  A61B8/4477 ,  A61B8/4488 ,  A61B8/486 ,  A61B8/5223 ,  A61B8/5292 ,  A61B8/56 ,  A61B8/58

Abstract: According to an aspect of the invention, there is provided an ambulatory system for determining a cardiac parameter at a fixed location within the cardiovascular system of a subject. The system comprises a wearable sensor including an ultrasound transducer. The wearable sensor can contact the skin of the subject and be positioned proximate to the fixed location. The system comprises a data collection module that is in communication with the ultrasound transducer. The ultrasound transducer is configured to detect a pressure wave passing through the fixed location. The data collection module is configured to collect data relating to the pressure wave passing through the fixed location, analyse the pressure wave, and determine at least one cardiac parameter based on the analysis.

公开(公告)号：WO2021158754A1

公开(公告)日：2021-08-12

申请号：PCT/US2021/016563

申请日：2021-02-04

Applicant: BALMFORTH, Peter ,  SPENCER, Darren ,  SOBOTKA, Paul ,  BRENNEMAN, Rodney ,  SOBOTKA, Nathan ,  DP HOLDING (U.K) LIMITED

Inventor： BALMFORTH, Peter ,  SPENCER, Darren ,  SOBOTKA, Paul ,  BRENNEMAN, Rodney ,  SOBOTKA, Nathan

IPC: A61B5/02 ,  A61M25/10 ,  A61F2/95

Abstract: A catheter-based device for determining the radial expansion force required to displace an occlusion in a vessel located in a subject. The device comprises an elongate body defining proximal and distal termini. The body comprises a sheath that encloses a hollow lumen within, which extends along substantially the full length of the body. The proximal terminal region of the body comprises: a user-interfacing hub, the hub comprising a handle for manoeuvring the body and configured for handling by an operator; a control interface for controlling the device; and a sensor configured to measure one or more parameters relevant to a force applied to the vessel by the device. The distal terminal region of the body comprises an expandable member movable between a retracted position, in which the expandable member is within the hollow lumen, and a deployed position, in which the expandable member is disposed beyond the distal terminus, and controllable via the control interface to expand radially. The expansion of the expandable member is correlated to a defined radial expansion force value.