Abstract:
A neck mechanism for a mannequin comprises three or more joint units serially connected to provide joints for three or more rotational degrees of freedom (DOF). A rotational axis of a first DOF is configured to be aligned with a lateral axis of the mannequin. A rotational axis of a second DOF is configured to be aligned with an anterior-posterior axis of the mannequin. A rotational axis of a third DOF is configured to be aligned with a cranial- caudal axis of the mannequin. A bottom one of the joint units is adapted to be connected to a torso of the mannequin, and a top one of the at least three joint units is adapted to be connected to a skull. The mannequin may also have a skull connected to the top one of the joint units, and a trunk connected to the bottom one of the joint units. A system for simulating cervical spine motions is also provided.
Abstract:
A modular mannequin has a plurality of individual mannequin sub-parts and one or more flexible couplings. Each of the flexible couplings is configured to releasably connect two or more of the plurality of individual mannequin sub-parts to one another. Further, one or more of the individual mannequin sub-parts is each configured to receive at least one removable material. The modular mannequin may improve the ease of which a bariatric mannequin, i.e. a mannequin having a sufficient size and/or weight to simulate an obese human, is transported and/or stored when not in use and may improve the simulation of an anatomically correct weight distribution in such a mannequin.
Abstract:
A customized chest response finite element model for a crash test dummy is disclosed. A method of creating the customized chest response finite element model for the crash test dummy includes the steps of identifying two borderline sets that match with certification test data profiles for a chest of the crash test dummy, varying material properties of components of the chest for the crash test dummy, defining a mapping function and allowing intermediate sets to be interpolated from the certification test data profiles, and creating a single chest response finite element model for the crash test dummy with a user-defined input parameter for the customized chest response finite element model that defines the customized response.
Abstract:
An adjustable spine joint assembly for a crash test dummy includes an upper member adapted to be operatively connected to an upper thoracic portion of a spine of the crash test dummy, a lower member adapted to be operatively connected to a lower thoracic portion of the spine of the crash test dummy, a center pivot bolt pivotally connected to the lower member and the upper member to allow rotational movement therebetween, and a self-locating adjustment mechanism cooperating with the upper member and the lower member to allow adjustment of a plurality of fixed joint angles between the upper member and the lower member.
Abstract:
An example phantom may include a phantom body comprising a porous material including a plurality of interconnected pores, the phantom body comprising an inflow cannel, which in some examples may be wall-less. The channels may have a width greater than a diameter of the pores. The porous material may be saturated with a fluid and enclosed within an enclosure. The enclosure may include an inlet fluidly coupling an inflow channel to an exterior of the enclosure and an outlet fluidly coupling an outflow channel to the exterior of the enclosure. In some examples, the enclosure may include an imaging window which may be formed of a flexible material. In some examples, the enclosure may define a first chamber which encloses the phantom body and at least one fluid-filled chamber fluidly connected to the first chamber.
Abstract:
Disclosed herein are physiological phantoms incorporating sensors and sensor materials integrated with a tissue phantom of an anatomical part. The sensors and sensor materials include small diameter optical fibers containing Bragg gratings, thermochromic materials, electrical strain gauges, flexible strain gauges, shape sensing cables, electrochromic materials and etc. The sensors and sensing materials may mimic tissue as part of the tissue phantom. They may mimic the directionality, density, elasticity of the anatomical tissues they may be mimicking. The sensors and sensing materials may be sensitive to strain, heat, electricity, shape, light, and etc. similar to what may occur during medical procedures using various medical devices and tools such as a scalpel, a needle, a deep brain stimulation probe, a port used in brain or spinal surgery and etc.
Abstract:
The presently disclosed subject provides a biomimetic eye model, and methods of its production and use. In one exemplary embodiment, the biomimetic eye model can include a scaffold having a convex curvature, a fluidic device coupled to the scaffold, a fabricated eyelid coupled to the fluidic device and a motor coupled to the fabricated eyelid. In certain embodiments, the scaffold can be impregnated with one or more keratocytes and a surface of the convex curvature of the scaffold can be covered with one or more layers of epithelial cells.
Abstract:
Described is a dynamic phantom. The phantom comprises a body having a front, a back, and an internal cavity between the front and the back, the body having a movable chest wall. The phantom also comprises a first motion mechanism that is actuated to move the chest wall to thereby move the front relative to the back of the body. The phantom also comprises a moveable organ member supported within the internal cavity that is caused to move relative to the body by a second motion mechanism. The phantom also comprises a drive source for driving the first and second motion mechanisms, wherein the first and second motion mechanisms move the chest wall and the moveable organ member to substantially represent their movement in a human body.
Abstract:
Le mannequin anatomique pour la simulation des comportements d'un corps humain, comprend un cou (18), une cavité buccale (20) et un larynx (24). Le larynx (24) prolonge la cavité buccale (20) et est monté mobile dans le cou (18) entre une position de repos du larynx (24), dite position basse, et une position de déglutition, dite position haute.
Abstract:
A method of producing a patient-specific three-dimensional model of a native tissue. A virtual replica of at least a portion of a native tissue is produced. A three-dimensional unitary replica of the portion of the native tissue is produced as a tangible representation of the virtual replica. The three-dimensional unitary replica includes at least one location of interest. The three-dimensional unitary replica includes a first area and a second area of the portion of the native tissue. The first area density has a first area density greater than a second area density of the second area.