Physio-control, Inc.

Jolife Ab

Other

Marcus Ehrstedt

Anders Jeppsson

Anders Nilsson

Erik Von Schenck

Sara Lindroth

Jonas Lagerstrom

Fredrik Arnwald

Gregory T Kavounas

Steven B Duke

Bo Mellberg

Paul Rasmusson

Fred William Chapman

Mitchell Allen Smith

Krystyna Szul

Ryan Landon

Bjarne Madsen Härdig

Robert G Walker

Tyson G Taylor

Thomas Falk

David J Linville

Lars Anders Nilsson

Steven Chester

Alexey Titov

Lars Anders Jörgen Segerstein

Wiktor Kocula

Tobias Svahn

Eric Sandrup

Per Axelsson

An active backboard that can assist with adjusting a patient on the backboard to ensure that the backboard is correctly aligned for a compression mechanism of an upper portion of a mechanical cardiopulmonary resuscitation (CPR) device to perform compressions. The active backboard can also include multiple layers that can slide or move relative to each other to move the patient relative to the backboard. The active backboard can include roller bars, a wheel, and/or projections to assist with moving a patient relative to the backboard.

Mechanical CPR device with active backboard

Examples of the disclosure are directed to adjustable back plates or backboards for a mechanical compression device to accommodate different patient sizes and/or for ease of storage. Examples of the disclosure includes back plates that can be folded, pieced together, or otherwise have a variable distance between connectors that attach to legs of a chest compression device. Examples also include back plates which may have two sides, such as an adult patient side and a pediatric patient side, to accommodate different patient sizes.

Adjustable back plate for mechanical compression device

A CPR machine () is configured to perform, on a patient's () chest, compressions that alternate with releases. The CPR machine includes a compression mechanism (), and a driver system () configured to drive the compression mechanism. A force sensing system () may sense a compression force, and the driving can be adjusted accordingly if there is a surprise. For instance, driving may have been automatic according to a motion-time profile, which is adjusted if the compression force is not as expected (). An optional chest-lifting device () may lift the chest between the compressions, to assist actively the decompression of the chest. A lifting force may be sensed, and the motion-time profile can be adjusted if the compression force or the lifting force is not as expected.

CPR chest compression machine adjusting motion-time profile in view of detected force

In embodiments, a Cardio-Pulmonary Resuscitation (CPR) system includes a retention structure, a compression mechanism coupled to the retention structure and a backboard. The retention structure and the backboard can be assembled together so as to form a closed loop that surrounds the patient's torso, and a piston of the compression mechanism is movable towards and away from a chest of a patient. In addition, the CPR system has a stabilizing member, and a coupler configured to couple the stabilizing member to the backboard. The stabilizing member can prevent the retention structure from tilting while the CPR system delivers chest compressions to the patient.

Cardio-pulmonary resuscitation machines with stabilizing members and methods

Embodiments of a Cardio-Pulmonary Resuscitation ('CPR') device are disclosed. A CPR device can include a compression mechanism configured to perform successive CPR compressions on a chest of a patient, the compression mechanism including a support portion configured to be placed underneath a patient, a piston, and a contact surface configured to make contact with the chest at a first orientation with respect to the support portion; and a controller communicatively coupled with the compression mechanism. The controller can be configured to receive at least one input and determine whether the first orientation of the contact surface should be adjusted based on the at least one input. The controller can further, responsive to a determination that the first orientation of the contact surface should be adjusted, cause the contact surface to move so that the contact surface makes contact with the chest at a second orientation with respect to the support portion.

CPR chest compression machine

Techniques and devices for extending a piston, for example connected to a medical device such as a mechanical CPR device, to accommodate different sized patients, are described herein. In some cases, a piston of a mechanical CPR device may include an inner piston at least partially slidable into an external piston sleeve. In one aspect, an external piston spacer may be attached to an outward surface of the inner piston to extend the length of the piston. In another aspect an internal bayonet sleeve may contact one or more locking rods at various positions, enabling adjustment of the length of the inner piston. In yet another aspect, a piston adapter may be removably attached to the end of the piston. In all aspects, the change in length of the piston may be detected and used to modify movement of the piston, for example to more safely perform mechanical CPR.

Adjustable piston

A cardiopulmonary resuscitation ('CPR') device that includes a chest compression mechanism, a support structure, and a plurality of inflatable support pads. The chest compression mechanism is configured to deliver CPR chest compressions to a patient. The support structure includes a base member configured to be placed underneath a patient, and a leg configured to support the chest compression mechanism at a distance from the base member. The plurality of inflatable support pads are configured to provide lateral support to a patient's chest during use of the CPR device. Each support pad within the plurality of support pads includes a holder configured to retain and at least partially surround the adjacent support pad.

CPR chest compression device with lateral support pad

A back plate for use with a CPR compression device can include first and second static attachment elements configured on first and second sides, respectively, to releasably connect to first and second legs, respectively. In addition, a bottom surface of the back plate can include a plurality of ribs that run from the first side to the second side in parallel to the third and fourth sides. The back plate also includes a hollow portion between the upper and bottom surfaces and the first, second, third, and fourth sides, and the ribs and third and fourth sides provide structural rigidity to the back plate. A plurality of openings along the third and fourth sides may be configured for strapping the back plate to a patient. Grooves may be configured on the top surface to hide sink marks on the top surface caused by the ribs on the bottom surface.

Back plates for mechanical CPR Compression

A CPR machine () is configured to perform compressions on a patient's () chest that alternate with releases. The CPR machine includes a compression mechanism (), and a driver system () configured to drive the compression mechanism. A compression force may be sensed, and the driving is adjusted accordingly if there is a surprise. For instance, driving may have been automatic according to a motion-time profile, which is adjusted if the compression force is not as expected (). An optional chest-lifting device () may lift the chest between the compressions, to assist actively the decompression of the chest. A lifting force may be sensed, and the motion-time profile can be adjusted if the compression force or the lifting force is not as expected. An advantage is that a changing condition in the patient or in the retention of the patient within the CPR machine may be detected and responded to.

A CPR chest compression machine includes a retention structure configured to retain a patient's body, and a compression mechanism configured to perform automatically CPR compressions to the patient's chest. The CPR machine also includes a camera coupled to the retention structure or to the compression mechanism. The camera has a field of view that spans at least a certain portion of the patient's body, and is configured to acquire an image of what is spanned by its field of view. The image may be stored in a memory, displayed, transmitted, analyzed to diagnose the patient, detect shifting of the patient within the CPR machine, etc.

CPR chest compression machine with camera

Techniques and devices for securing a medical device to a patient-carrying device, such as a mechanical CPR device to a stretcher, are described herein. In one aspect, a medical device stabilization strap may include a first removable attachment shackle connected to a first end of a first strap. An adjustable quick release buckle may be disposed between a second end of the first strap and a proximal end of a second strap. A second removable attachment shackle may be connected to a distal end of the second strap. The first and second removable attachment shackles may each include a U-shaped bracket for removably engaging a medical device. The adjustable quick release buckle may adjust a length of the second strap, for example, to secure the medical device to the patient-carrying device.

Growing community of inventors

Lund, Sweden

Marcus Ehrstedt