Abstract: Chest compression training arrangement comprising an upper plate (3) and a base (5), wherein at least a part of the upper plate (3) is adapted to be moved towards said base (5) when a force is exerted onto said upper plate. It further comprises a flexible beam (7, 207) onto which said force is transferred from the upper plate (3), which flexible beam (7, 207) is adapted to curve when force is exerted onto it at a distance from a beam support (9, 11, 109, 111, 209, 211) supporting the flexible beam (7, 207).
Abstract: This invention relates to pulse simulation units for use in patient simulators, where the device comprises a base body, an upper actuator body located in parallel above the base body, one leaver body at each longitudinal end of the base body, which in their lower portion is pivotally attached to the base body and in their upper portion is pivotally attached to the actuator body, and at least one shape memory alloy wire attached in one end to the lower portion of each leaver body below the pivotally attachment to the base body and in the other end to the base body, and where the length of the shape memory alloy actuator wire is adjusted such that when no electric pulse is delivered, the length of the wire(s) allow the leaver bodies to be more or less folded in towards the base body and hold the actuator body to form a compressed position at a first distance above the base body, and such that when the actuator wire(s) contract due to exposure to an electric pulse they will rotate the lever bodies some degrees a
Abstract: Embodiments of the present invention are directed toward a system and method of determining real time chest compression depth of a CPR patient or manikin from acceleration and a reference signal, such as force. In one embodiment, an acceleration signal is filtered and integrated to determine a raw depth signal. A force signal is adjusted to having a similar amplitude, phase, and shape as the raw depth signal. The force signal is filtered. The adjusted force signal is subtracted from the filtered force signal to obtain a compensation signal. The chest compression depth is obtained by adding the raw depth signal to the compensation signal.
Abstract: The illustrative embodiment is a simulation system for practicing vascular-access procedures without using human subjects. The simulator includes a data-processing system and a haptics interface device. The haptics device provides the physical interface at which a user interacts with various mechanisms that are intended to enable the user to simulate various aspects of a vascular-access procedure. The haptics device is designed so that its physical form and manner of use are not inconsistent with the experience of performing an actual vascular access procedure.
Abstract: A system for processing chest compression signals is disclosed including a processing unit, a depth signal device, and a threshold device comprising upper and lower thresholds. The system may also include a force signal device. The processing unit is adapted to output a signal depending on values of depth and force signals with respect to the thresholds.
Abstract: An airway tube holder (10) has a face plate assembly to fix an airway tube (24). The assembly comprises a face plate (20) for placement over the mouth of a patient. The face plate (20) has a channel (22) including an open end (23) and a closed end (26) in which the tube (24) is fixedly positioned. A tube holding block (30) is integrally mounted to the face plate (20). The block (30) has a securing means (38, 40, 41) mounted in the tube holding block (30). A clamp (41) is secured to a screw (40) of the securing means by a loop (44) encircling the screw (40). A folded strip (106) is attached to the end of a headband (18) so secure the holder to a patient, and forms hooked portions facing in opposite directions. The block (30) is flexible enough to absorb an over-tightening of the screw (40).
Abstract: A method for monitoring chest compressions using a compression member includes measuring a force exerted by the compression member, measuring a displacement of the compression member, providing a chest stiffness function representing the relationship between force and displacement based on values derived from the measured force and the measured displacement, and analyzing linearity of the chest stiffness function. Embodiments of the invention also include devices for performing the method.
Abstract: A device for monitoring respiration comprises a duct, a flow restricting element in the duct, and a pressure sensor arranged in the duct. The pressure sensor measures a pressure drop across the flow restricting element as a pressure difference between a pressure at a location in the duct on a first side of the flow restricting element and a substantially constant pressure on a second side of the flow restricting element opposite the first side.
Type:
Grant
Filed:
February 1, 2008
Date of Patent:
June 5, 2012
Assignee:
Laerdal Medical AS
Inventors:
Helge Myklebust, Joar Eilevstjonn, Jon Nysaether
Abstract: A nasal aspirator comprising a resilient bulb and a stem for suction of liquids by vacuum created by compressing the bulb and thereafter gradually releasing the compression of the bulb, where the stem is removable connected to the bulb part, wherein the bulb part comprises a neck portion adopted to interact with a cap portion of the stem part to create a substantially airtight connection there between.
Abstract: Simulator for medical training having at least a detachable, fluid-tight hollow member comprising: at least a portion (1; 25) made of a self-sealing material; an opening (2; 17) to fill said hollow member with a fluid, said opening (2, 17) being provided with closure means (4; 26) or being connected (8) to closure means; fastening means (4,5; 28) to detachably fasten said hollow member to said simulator. The portion made of self-sealing material allows multiple punctures before having to be replaced.
Type:
Grant
Filed:
February 27, 2009
Date of Patent:
January 24, 2012
Assignee:
Laerdal Medical AS
Inventors:
Virginie Duprez, Øystein H. Gomo, Einar Egelandsdal
Abstract: The present invention provides a CPR sensor that includes a thin and substantially flat flexible substrate having one or more sensor arrays, a power source, an output interface and a processor or analog circuit, all of which are disposed on the substantially flat flexible substrate. The substrate can be any shape (e.g., rectangular, circular, a polygon, an irregular shape that is decorative) and made from a polymer, metal film or other suitable material. Note that the substrate can be rigid or semi-flexible instead of flexible. A protective layer may cover the sensor array, the power source, and the processor or analog circuit. Alternatively, a protective covering can be used to encapsulate the device. The one or more sensor arrays measure one or more of the following compressions characteristics: compression depth, compression force, compression frequency and compression acceleration.
Type:
Grant
Filed:
June 15, 2007
Date of Patent:
October 11, 2011
Assignees:
Board of Regents, The University of Texas System, Laerdal Medical AS
Inventors:
Zeynep Celik-Butler, John W. Priest, Carolyn L. Cason, Mary E. Mancini, Kenneth George Morallee, Helge Fossan
Abstract: The invention regards a resuscitation system having a chest compression device to repeatedly compress the chest of a patient and thereafter cause or allow the chest to expand. The device includes an electric motor connected to a compression element. A controller is coupled to the electric motor and causes the motor to actuate the compression element according to a predetermined profile. The controller is further operable to draw the compression element away from a patient's chest upon detecting a malfunction.
Abstract: A support for a chest compression system includes a back plate, a front part having a seat for a compression member of a chest compression system, and a side part connecting the back plate to the front part. The side part is adapted to provide adjustable spacing between the seat and the back plate to accommodate patients having different chest heights to allow the support to be snugly placed around the chest of a patient.
Abstract: A system is disclosed for providing feedback regarding chest compressions in CPR comprising a measuring unit, a processing unit and a display unit, where the measuring unit comprises a depth measuring device, a force measuring device, or both. The processing unit comprises a depth signal device and/or a force signal device and a threshold device. The processing unit is adapted to output a signal depending on the values of depth and/or force signals with respect to the thresholds. The display unit comprises at least one indicator and is adapted to activate the indicators based on the output from the processing device. The system thus measures and processes chest compressions and provides feedback to the user with respect to the characteristics of the compressions.