Abstract: A first tread pattern display system for new tread patterns includes a first upper sidewall part, a second upper sidewall part, a first tread shoulder part, a second tread shoulder part, and a middle tread part. The first upper sidewall part removably attaches to the first tread shoulder part by a plurality of projections extending from the first upper sidewall part to corresponding recesses in the first tread shoulder part.

Abstract: A penmanship device is provided to assist students learning to write consistently and evenly. The device comprises a body with a handle portion and an operational portion. The operational portion has at least two windows. A first window is used for alignment and a second window is used to write. A user writes a first letter of a first word within the confines of the second window. To write the next letter, the device is shifted so that an edge of the previous letter is aligned with a left lateral edge of the second window. This is repeated until the word is completed. To write the next word, the device is shifted so that an edge of a last letter of the previous word is aligned with a right lateral edge of the first window. In another embodiment, the device has three windows providing left-handed and right-handed support.

Abstract: New and unique puzzle mechanics, systems, and methods are described herein. A puzzle grid comprising linearly arranged intersecting words, with each individual letter placed on a separate puzzle tile, may be divided into a plurality of puzzle pieces, where each puzzle piece is formed of one or more contiguous puzzle tiles. Each puzzle piece shape conforms to one of a predefined set of shapes. To mix up the puzzle grid, identically shaped puzzle pieces may be randomly shuffled and rotated if required so that the puzzle layout remains unchanged whereas the letters are scrambled. Also puzzle pieces whose shape exhibit rotational symmetry may be optionally rotated within the puzzle layout. Letters may maintain upright legibility. A user may then attempt to solve the puzzle by swapping identically shaped puzzle pieces and optionally rotating puzzle pieces whose shape exhibit rotational symmetry.

Abstract: A representation of the skull (“a mask”) based upon imaging of the head enables simulation of surgical procedures. The mask is limited in extent to a zone extending above the inferior boundary of the maxilla in the axial plane, between the outer limits of the zygomatic bones in the sagittal plane, and anterior to the coronal suture of the skull in the coronal plane, and includes orbits and a nasal opening. The mask is detachably connected to a posterior base. The base includes a fluid retaining surface which forms a basin. A peripheral edge slidingly mates with a posterior portion of the mask to enable rotation of the mask. The base has a mounting surface for eye models that is posterior to each of the mask orbits. A drain port enables drainage from the base. A nasal structure resembling a nose is reversibly insertable into the nasal opening.

Abstract: A human body model is disclosed that can make an image acquired by a medical device similar to an image of a body lumen acquired during surgery. The human body model includes a main body portion that includes a lumen passing through a portion of the main body portion between a first surface and a second surface disposed on a side opposite to the first surface, and a tubular body that is provided in at least a part of the lumen and is made of another material different from the material of the main body portion. An acoustic impedance of the material of the tubular body being equal to an acoustic impedance of a body lumen, and a hardness of the material of the main body portion being higher than a hardness of the material of the tubular body.

Abstract: Provided herein are devices, systems, methods, apparatuses, and computer program products for determining a visual acuity of a reader. The device includes a display adapted to present a first line of text to the reader and an input device adapted to receive signals corresponding to the first line of text. The device further includes a processor that is adapted to determine a reading score associated with the first line of text, generate an acuity parameter based on the reading score and the first readability vector, and determine the visual acuity of the reader based on the acuity parameter and a reference acuity parameter.

Abstract: The present application relates generally to a demonstration kit for various nozzles. The demonstration kit may include a spray assembly and a control assembly. The spray assembly may include a case having a base and a cover rotatably coupled to the base, a plurality of back wall panels configured to be secured to a sidewall of the base, a boom connected to an interior surface of the case, and one or more nozzles connected to the boom and repositionable along a length of the boom. The control assembly includes at least one pump that when in an operating orientation is fluidly connected to the one or more nozzles and a portable power supply in electrical communication with the at least one pump.

Abstract: An intravenous pole accessory (30) includes a stuffed doll having a head portion (32) and a main portion (33) that covers a major portion of an intravenous pole (36) upon placement of the accessory on the intravenous pole. The accessory can include at least a first attachment member (31 or 31A) coupled to a portion (32) of the stuffed doll configured and arranged for retaining the stuffed doll in a vertical position when the first attachment member is attached to a top portion (36A) of the intravenous pole, and a hole (34) in the main portion of the stuffed doll configured to allow access to a medical device (37) attached to the intravenous pole when the at least first attachment member is attached to the top portion of the intravenous pole.

Abstract: Steady flow hydrodynamic performance testing is performed on a valved prosthesis mounted in a test conduit. The system is configured with prescribed test condition inputs into control software. Upon test initiation, a steady flow pump is activated and automatically adjusts its flow based on the software logic to meet the prescribed first test condition. During forward flow pressure drop testing, the flow pump is automatically adjusted to achieve and hold a particular flow rate. During back flow leakage testing, the steady flow pump is automatically adjusted to achieve and hold a particular differential pressure across the test prosthesis while a flow rate of the leakage flow is measured. After a first test condition has been achieved, the system control software then automatically adjusts the pump flow rate to meet a second test condition. This process then continues until all conditions set by software inputs are evaluated.

Abstract: Disclosed is a wearable device comprising: an impedance sensor for measuring an impedance signal inside a user's body; and a controller for determining the number of meals for a predetermined period and the glycemic index corresponding to each meal using the measured impedance signal and providing the user's eating habit information on the basis of the number of meals and the glycemic index.

Abstract: A rib retention training assembly that is beneficial for training and practicing chest tube insertion and other invasive rib surgical procedures is envisioned to incorporate a portion of an animal rib cage covered by a synthetic sheet of human-like skin. One embodiment contemplates an apparatus comprising three framed plates each with an aperture in the center, much like a picture frame. When assembled, the synthetic sheet of human-like skin is sandwiched between a first outer framed plate and a center framed plate such that the synthetic sheet is covering the respective apertures, and the portion of the animal rib cage is sandwiched between the center frame plate and a second outer framed plate such that the rib cage is covering the respective apertures. This assembly provides a chest prop with a realistic feel for surgical simulations.

Abstract: Simulated tissue structures and methods of manufacturing are provided. The simulated tissue structures are particularly useful for placement inside abdominal simulators for practicing laparoscopic surgical techniques. One simulated tissue structure includes a combination of two materials that are attached together wherein one of the materials forms a hollow anatomical structure configured to contain the other material. The two materials are attached in an anatomically advantageous manner such that the inner surface of the outer material closely conforms to the outer surface of the inner material. Another simulated tissue structure includes a plurality of layers wherein at least one layer is applied by printing the layer with at least one stencil to impart one or more functional characteristic to the simulated tissue structure.

Abstract: Methods, systems, and computer readable media for analyzing robotic physical rehabilitation systems. In some examples, a method includes receiving user interaction data characterizing a user's interaction with a robotic rehabilitation system. The robotic rehabilitation system includes one or more robotic motion machines, a control system for controlling motors of the robotic motion machines, and one or more sensors for collecting the user interaction data while the user performs physical rehabilitation training using the one or more robotic motion machines. The method includes analyzing the user interaction data to track the user's past course of treatment and determine an action for the user's future course of treatment. The method includes sending one or more commands to the control system of the robotic rehabilitation system based on the action for the user's future course of treatment.

Abstract: A flow model is described. The flow model may include one or more distal arteries that drain into a reservoir, preferably, a sealed cavity. Pumps and artificial organs, such as an artificial human heart, may be used to create a more lifelike experience. One or more neurovascular devices, such as thrombectomy devices, may be deployed in the simulated blood vessels for training purposes.

Abstract: Provided is a blood spatter simulation head model including a housing having the shape of a human head; a reservoir inside the housing and capable of storing blood; an injection tube connected to the reservoir and extending to a lower portion of the housing, the injection tube including an injection opening through which blood is injected; and a weight unit in a lower portion of the housing and supporting the housing.

Abstract: A knitting board is provided. The instruction board includes a front side and a back side, each hinged attached to a spine. The hinge attachments will allow the front side and the back side to open into an A-frame. The front side has a window therethrough. The front side has a plurality of connectors at least located above the window. The connectors can moveably secure a plurality of instruction cards thereto. The instruction cards can display a desired topics such as the steps for various knitting techniques, thereon. A card marker located as part of the plurality of instruction cards can mark a place on the instruction card, such as the last place a user was at when they stopped the Instructional board for knitting.

Abstract: The present invention relates to a toy gun having a bolt configured to move forward or backward such that a recoil and a following thrill can be experienced as in the case of an actual gun.

Abstract: Provided are articles, kits, and methods for teaching a person how to tie a bow tie. A practice bow tie includes an elongated piece of flexible material with indicators on the front and rear surface of the bow tie. The indicators, also provided in a kit, define a portion, fold line, or step that aid a user in tying a bow tie to achieve a satisfactory appearance.

Abstract: An adjustable archery training bow assembly includes a single resistance element and an adjustment mechanism that can be actuated by a user to vary the tension level in the resistance element for training purposes. The training bow also includes a mount for receiving a mobile device, which allows the user to practice various augmented reality-archery training scenarios. The adjustable archery training bow is used to enhance the user's skills, such as his/her strength, stability, and accuracy to help deliver on-target an arrow fired from a real, non-training bow.

Abstract: Embodiments include methods and systems for automated eating detection. Systems comprise a continuous glucose monitor (CGM), accelerometer, and processing unit. During a first time period, the processing unit receives glucose readings and a first set of acceleration readings. The processing unit identifies an eating episode if the glucose readings satisfy one or more criteria. Using the identified eating episode and first set of acceleration readings, the processing unit generates an individual model that identifies eating episodes using acceleration readings without using glucose readings. During a second time period, a processing unit uses the individual model and a second set of acceleration readings to identify a second eating episode. Some embodiments may use additional sensor types (for example, PPG or heart rate) to identify eating episodes in the first or second time period, generate the individual model, or any combination thereof.