Abstract: Implantable electrodes with power delivery wearable for treating sleep apnea, and associated systems and methods are disclosed herein. A representative system includes non-implantable signal generator worn by the patient and having an antenna that directs a mid-field RF power signal to an implanted electrode. The implanted electrode in turn directs a lower frequency signal to a neural target, for example, the patient's hypoglossal nerve. Representative signal generators can have the form of a mouthpiece, a collar or other wearable, and/or a skin-mounted patch.

Abstract: Methods and systems of treating sleep disordered breathing in a patient suffering therefrom by activating one or more infrahyoid strap muscles are provided. Activation of one or more infrahyoid muscles can be accomplished by stimulating an ansa cervicalis, including one or both of the superior root and the inferior root of the ansa cervicalis, alone or in combination with stimulating the hypoglossal nerve.

Abstract: Methods and systems for using sensed evoked neural responses for informing aspects of neurostimulation therapy are disclosed. Electrical signals may be recorded during the provision of electrical stimulation to a patient's neural tissue. The electrical signals may be processed and analyzed using one or more classification criteria to determine if the electrical signals contain a neural response of interest. Examples of such neural responses include evoked neural responses that are oscillatory and/or resonant in nature. If the electrical signals include such responses of interest, one or more features may be extracted from the signals and used as biomarkers for informing aspects of neurostimulation therapy, such as directing lead placement, optimizing stimulation parameters, closed-loop feedback control of stimulation, and the like. Various methods and systems described herein are particularly relevant in the context of multi-site stimulation paradigms, such as coordinated reset neuromodulation.

Abstract: Neurostimulation, such as electrical and/or magnetic neurostimulation, is controlled using an adaptive real-time state space (ARTISTS) control framework to determine and/or adjust stimulation settings (e.g., stimulation waveforms). The ARTISTS control framework generally includes an adaptive autoregressive model of the nervous system's response to stimulation, an amended Kalman filter to estimate the state and coefficients of the autoregressive model, and a linear quadratic regulator to determine the stimulation waveform to be delivered.

Abstract: Systems, devices, and techniques are described for analyzing evoked compound action potentials (ECAP) signals to assess the effect of a delivered electrical stimulation signal. In one example, a system includes processing circuitry configured to receive ECAP information representative of an ECAP signal sensed by sensing circuitry, and determine, based on the ECAP information, that the ECAP signal includes at least one of an N2 peak, P3 peak, or N3 peak. The processing circuitry may then control delivery of electrical stimulation based on at least one of the N2 peak, P3 peak, or N3 peak.

Abstract: An example of a system to program a neuromodulator to deliver neuromodulation to a neural target using a plurality of electrodes may comprise a programming control circuit configured to determine target energy allocations for the plurality of electrodes based on at least one target pole to provide a target sub-perception modulation field, and normalize the target sub-perception modulation field, including determine a time domain scaling factor to account for at least one property of a neural target or of a neuromodulation waveform, and apply the time domain scaling factor to the target energy allocations.

Abstract: Systems and methods for producing asynchronous neural responses to treat pain and/or other patient conditions are disclosed. A method in accordance with a particular embodiment includes selecting a target stimulation frequency that is above a threshold frequency, with the threshold frequency corresponding to a refractory period for neurons of a target sensory neural population. The method can further include producing a patient sensation of paresthesia by directing an electrical signal to multiple sensory neurons of the target sensory neural population at the stimulation frequency, with individual neurons of the sensory neural population completing corresponding individual refractory periods at different times, resulting in an asynchronous sensory neuron response to the electrical signal.

Abstract: A blood pump system includes a catheter, a pump housing disposed distal of a distal end of the catheter, a rotor positioned at least partially in the pump housing, a controller, and an electrode coupled a distal region of the blood pump. The electrode can be used to sense electrocardiogram (EKG) signals and transmit the signals to a controller of the blood pump. The operation of the blood pump can be adjusted based on the EKG signal and on cardiac parameters derived from the EKG signal. Further, the controller can determine a need for defibrillation or pacing of the patient's heart based on the signal and can administer treatment with electrical shocks to the heart via the electrode coupled to the blood pump. The use of an electrode with a blood pump already in place in the heart allows for more efficient and safer treatment of serious cardiac conditions.

Abstract: A design for an implantable medical device (IMD) is disclosed in which a charging coil and a short-range RF antenna in the IMD's header are physically integrated, and in which the short-range RF antenna includes intentional coupling to the charging coil. A pick-up is capacitively coupled to the charging coil in the header, such as by wrapping the pick-up at least partially around the turns of the charging coil. The charging coil is used to receive power via a magnetic inductive link at a first (preferably lower) frequency, while the combined charging coil and pick-up—together acting as the short-range RF antenna—receive and transmit short-range RF data (e.g., Bluetooth) via a short-range RF data link at a second (preferably higher) frequency. Resonance of the charging coil and short-range RF antenna can be independently tuned, and circuitry can prevent interference between them.

Abstract: A system for regulated insertion into a subject's heart of an implantable lead configured to transmit electrical signals, the system comprising: an adapter with distal end and proximal end comprising: an adapter distal connector, providing dismountable mechanical, electrical attachment to a proximal connector of the lead, configured to mechanically attach in fixed rotational relation to the connector; a rotational interface, comprising a rotational joint having a distal body rotationally attached to a proximal body, configured to conduct electrical signals across the rotational joint; an adapter proximal connector configured for dismountable mechanical, electrical connection to a pacing spectrum analyser; the adapter configured so electrical signals are transmittable between a distal helical electrode of the lead and the adapter proximal connector during rotations of or in the distal body, thus changing the depth of the inserted electrode; reducing or eliminating rotation of the adapter during rotations of or

Abstract: Methods and systems for assisting a user to program stimulation parameters for an implantable pulse generator (IPG) are described. The IPG may be configured to provide electrical stimulation via a plurality of electrodes. The amount of stimulation current provided by each of the electrodes may be individually controlled. A graphical user interface (GUI) is provided for displaying an indication of the current to be delivered via each the electrodes. In some embodiments, the currents are expressed in terms of a total current to be delivered by the plurality of electrodes, and percentage values of that current to be delivered by each individual electrodes. If a user wishes to modify an amount of current amplitude to be delivered by a particular electrode, the described system is configured to update the total current and the percentage values for each of the electrodes based on the modification.

Abstract: Medical device management platforms, as for example, automated external defibrillator (AED) management platforms are described. The disclosure also describes systems, management platform graphical user interfaces, management server infrastructures, connected automated external defibrillators (AEDs), and protocols for communications between such system/devices that make it easier for owners, administrator, and others to manage their devices. The present disclosure also describes mechanisms that facilitate getting incident information to interested parties, including medical personnel, EMS personnel and others when an AED is used.

Abstract: Compositions, systems, and methods for reducing viability of cancer cells and treating cancer, as well as preventing an increase of volume of a tumor present in a body of a living subject, are disclosed. The systems and methods involve application of an alternating field concurrently with administration of at least one composition comprising at least one killer cell (such as, but not limited to, at least one natural killer (NK) cell or at least one cytokine-induced killer (CIK) cell).

Abstract: The present invention concerns a method for treating osteoarthritis and/or one of its symptoms in a human or animal subject, which comprises the application of a portable device for transmitting electromagnetic waves to said human or animal subject, wherein said portable device is capable, when it is affixed at a surface, of transmitting waves having a power flux density of at least 0.5 mW/cm2 of surface and a frequency value of between 3 and 120 gigaHertz (GHz), the device being further capable of simultaneously exposing at least 2.5 cm2 of the surface to the waves.

Abstract: The disclosure relates to a cancer treatment system including a nozzle which generates the mist of a solution which consists of basic hydrogen peroxide and an imaging optics that relays an aerial image near the exit of the nozzle. The imaging optics can relay a spatial image at the outlet of the nozzle. Consequently, the 1.27-micrometer wavelength radiation is focused at where the affected part of a cancer patient is positioned.

Abstract: A tanning apparatus, including a support having a bottom and a top, a mount connected to the top of the support and configured to extend laterally from the support, and at least one light filter. The mount is operable to releasably hold the at least one light filter. The mount is also adjustably-sizable and is operable to accommodate the at least one light filter.

Abstract: A photodynamic therapy treatment of a cavity for providing a predetermined dose of light energy, the cavity being delimited by cells with photosensitizers, having: an external hollow rod, an internal hollow rod to be inserted inside the external rod, an inflatable balloon secured on the external rod, the inside of the balloon being in fluidic communication with the inside of it, a handle made of one single piece. The handle receives an illuminating device for illuminating the balloon to activate the photosensitizers. The handle and the rods are sealingly secured to each other in one single screwing movement. An illumination time is determined by means of a transfer function relating each volume of the balloon to at least one corresponding distribution of light power at its outer surface and a corresponding illumination time for providing the energy dose.

Abstract: To provide a device and a method for preventing, improving, or preventing a worsening of depression by irradiating light having specific wavelengths, such as violet light, as well as a method for operating the device. The above-described problem is solved by a device and a method used for the purpose of preventing, improving, or preventing a worsening of depression by irradiating a subject with violet light having a wavelength within a range of 360 to 400 nm. An operating method of a device is a method for operating a device including irradiation means for irradiating a subject with violet light having a wavelength within a range of 360 to 400 nm and used for the purpose of preventing, improving, or preventing a worsening of depression.

Abstract: A UV light delivery device for performing intra-corporeal ultraviolet therapy is provided. The device includes an elongated body separated by a proximal end and a distal end. The device also includes a UV light source configured to be received at the receiving space. In some examples, the UV light source is configured to emit light with wavelengths with significant intensity between 320 nm and 410 nm and is utilized in conjunction with an endotracheal tube or a nasopharyngeal airway.

Abstract: An antimicrobial treatment system comprises a wearable photoactivation device. The wearable photoactivation device includes a body configured to be positioned on a head of a subject over one or more eyes of the subject. The body includes one or more windows or openings that allow the one or more eyes to see through the body. The body includes one or more photoactivating light sources coupled to the body and configured to direct photoactivating light to the one or more eyes according to illumination parameters. The illumination parameters determine a dose of the photoactivating light that activates, according to photochemical kinetic reactions, a photosensitizer applied to the one or more eyes and generates reactive oxygen species that provide an antimicrobial effect in the one or more eyes, without substantially inducing cross-linking activity that produces biomechanical changes in the one or more eyes.

Abstract: Systems and methods are disclosed for simulating dose deposition. The systems and methods perform operations comprising: receiving a set of training data representing phase space of a radiotherapy treatment device comprising propagation and scattering of particles inside the radiotherapy treatment device; training a generative machine learning model based on the set of training data to generate one or more samples of the phase space of the radiotherapy treatment device; and simulating dose deposition at a particular region of interest based on the one or more samples of the phase space generated by the generative machine learning model.

Abstract: A positioning device, a radiotherapy device, and a positioning method enable accurate patient positioning while reducing calculation time. A plurality of X-ray fluoroscopic images are obtained by imaging a patient along each of a plurality of imaging axes in a direction different from a plurality of movement axes along which a treatment couch moves translationally. A plurality of simulated-X-ray fluoroscopic images are obtained by projecting the three-dimensional fluoroscopic image of the patient on each of the plurality of surfaces corresponding to each imaging axis. A similarity calculation unit calculates the similarity between each X-ray fluoroscopic image and each simulated-X-ray fluoroscopic image.

Abstract: Systems and methods for treating cancer and for preventing metastasis using low intensity focused ultrasound in combination with an anti-cancer therapy are disclosed.

Abstract: A multi-focus histotripsy method based on a pulsed ultrasound phased array with hundred elements is provided. Excitation amplitude and phase of individual elements are regulated to control a phased array to produce multiple focus modes. A two-stage histotripsy is performed based on these focus modes. In a first stage, a first pulsed ultrasound is applied to an experimental sample in a target area to induce generation of cavitation microbubbles and boiling bubbles to preliminarily homogenize the experimental sample to form a loose product; and in a second stage, the experimental sample is mechanically disrupted and homogenized using a second pulsed ultrasound. The first pulsed ultrasound and the second pulsed ultrasound each are a hundred micro-second pulse or a milli-second pulse. Duty cycles of the first pulsed ultrasound and the second pulsed ultrasound are 3-10% and less than 2%, respectively. A multi-focus histotripsy system is further provided.

Abstract: An assembly for reducing foreign body response in a subject caused by an invasive or non-invasive tissue injury at a target site. A base with aperture is secured to the subject in proximity to the target site with an implant extending therethrough. The base includes a sloped channel that receives an alignment tab of a housing, permitting vertical adjustment of the housing relative to the base along a continuum by rotation of the housing. The housing contains a transducer generating vibrations when activated, an acoustic horn in contact with the transducer transmitting the vibrations through the base aperture to the subject tissue at the target site, and a compressible polymer surrounding a portion of the horn at the terminal end of the housing that conforms to the subject's interface and transmits vibrations to the target site for reducing foreign body response or microgliosis in the subject.

Abstract: Apparatus and methods for deactivating bronchial nerves extending along a bronchial branch of a mammalian subject to treat asthma and related conditions. An ultrasonic transducer (11) is inserted into the bronchus as, for example, by advancing the distal end of a catheter (10) bearing the transducer into the bronchial section to be treated. The ultrasonic transducer emits focused ultrasound so as to heat tissues throughout circular impact volume (13) as, for example, at least about 1 cm3 encompassing the bronchus to a temperature sufficient to inactivate nerve conduction but insufficient to cause rapid ablation or necrosis of the tissues. The treatment can be performed without locating or focusing on individual bronchial nerves.

Abstract: The present invention relates to a cartridge that can fundamentally prevent twisting of wires when a transducer rotates infinitely, and a focused ultrasound generator including the same. According to the present disclosure, the transducer can be rotated infinitely, so a wide range of treatments can be effectively performed. Additionally, according to the present disclosure, a focused ultrasound generator capable of performing auxiliary input using a touch screen may be provided.

Abstract: A focused ultrasound treatment system has: a focused ultrasound unit configured to emit focused ultrasound waves to a focal region to perform treatment; an ultrasound imaging unit configured to, after treatment emit imaging ultrasonic waves to an imaging region and receive corresponding echoes, and image a corresponding vascular blood flow image on the basis of the echo; a region planning and parameter adjustment unit configured to re-delineate a focal region on the basis of the vascular blood flow image and to re-adjust a treatment parameter of the focused ultrasound unit so as to be used to next treat the re-delineated focal region. The imaging region contains the focal region.

Abstract: Disclosed are an ultrasonic therapeutic system, a control method thereof and an ultrasonic therapeutic apparatus, and relates to the field of ultrasonic therapy. The ultrasonic therapeutic system includes a linear-type handpiece and a point-type handpiece, and the control method includes the following steps: controlling at least one of a linear-type handpiece and a point-type handpiece to apply ultrasonic energy inside a treatment area; the linear-type handpiece is configured to apply multiple focuses of the ultrasonic energy in line at one shot, being capable of discretely moving at a preset interval along a skin surface of the treatment area; and the point-type handpiece is configured to apply one focus of the ultrasonic energy at one shot, being capable of continuously sliding and overlapping for a preset time along the skin surface of the treatment area.

Abstract: Embodiments of a dermatological cosmetic treatment and/or imaging system and method adapted to alter placement and position of multiple cosmetic treatment zones in tissue from ultrasound beams from a transducer, simultaneous multi-focus therapy at multiple depths, and/or dithering ultrasound beams from a transducer to alter placement and position of multiple cosmetic treatment zones in tissue. The system can include a hand wand, a removable transducer module, and a control module. In some embodiments, the cosmetic treatment system may be used in various cosmetic procedures.

Abstract: Provided are NK-92 cells expressing a chimeric antigen receptor (CAR). The CAR can comprise an intracellular domain of Fc?RI?. Also described are methods for treating a patient having or suspected of having a disease that is treatable with NK-92 cells, such as cancer or a viral infection, comprising administering to the patient NK-92-CAR cells.

Abstract: A head wearable air purifier includes a headgear, an air purifier assembly supported by the headgear, a nozzle assembly and a mask body. The air purifier assembly includes a filter and an airflow generator for generating an airflow through the filter. The nozzle assembly is configured to extend in front of a face of a wearer in use. The nozzle assembly includes an inlet aperture configured to receive a filtered airflow from the air purifier assembly, and an air outlet for emitting the filtered airflow from the nozzle assembly. The mask body detachably connects to the nozzle assembly and defines a cavity for receiving a mouth and/or nose of the wearer. The cavity is in fluid communication with the air outlet.

Abstract: A roping harness comprises a belt, a pair of leg loops, and a woven layer in the form of a ring and forming the belt or a leg loop. The woven layer comprises longitudinal yarns and transverse yarns. The longitudinal yarns comprising first yarns extend continuously from the first end to the second end to provide a mechanical strength. The woven layer defines a plurality of transverse strips that are woven and arranged adjacent to one another in the first direction with different mechanical properties. The first yarns present a constant constitution from the first end to the second end. Each transverse strip has a constant constitution of the transverse yarns from the first edge to the second edge.

Abstract: A harness comprises a woven layer shaped as a ring to form a belt or a leg loop. The woven layer comprises first and second yarns woven to form a weave extending from one longitudinal end to the other. The first and second yarns respectively join the two ends and the two transverse edges. The woven layer presents a longitudinally offset broad portion and narrow portion. The woven layer has at least one fold defining a fold line extending mainly in the first direction to form the narrow portion, with a support portion and an overlap portion folded onto the support portion. The overlap portion and support portion have common first yarns and second yarns.

Abstract: A textile connector comprises a woven element in the shape of a tubular ring and a yarn forming a plurality of loops arranged in the tubular ring. The loops provide a strength of the textile connector. A seam is formed by means of at least one yarn passing through the two ends of the woven element several times to close the tubular ring. The woven element is a tubular woven element defining a through hole from a first end to an opposite second end along a longitudinal axis. The first end is an outer end that overlaps the second end forming an inner end. The seam secures the outer end with the inner end and defines joins angularly offset from one another when observed in the longitudinal direction.

Abstract: An absorber assembly for a fall protection system is provided. The absorber assembly can include an absorber configured be in a non-deformed state and a deformed state. The absorber assembly can include a connecting pin coupled to the absorber and a swivel that is coupled to the connecting pin. The connecting pin can be configured to rotate by at least five degrees in relation to the absorber when the absorber is in the deformed state.

Abstract: The present application relates to a warehousing system including a shelf and fireproof partition plates. The fireproof partition plates are detachably arranged inside the shelf and divide the interior of the shelf into a plurality of zones. Each zone includes multiple compartments. In the above warehousing system, the fireproof partition plates are detachably arranged inside the shelf, and the interior of the shelf is divided into a plurality of zones. When a fire occurs in a certain zone, the fire can be prevented from spreading rapidly in a short time; and there are a plurality of compartments in each zone, thereby improving the situation that a larger shelf space is required for providing fireproof partition plates in each compartment, and increasing the space utilization rate of the shelf.

Abstract: A fire extinguisher stand has two panels and a platform hinged at an intermediate portion of each of the two panels such that the two panels are configured for moving between a first position with an upper end of each of the two panels together and a lower end of each of the two panels apart; and a second position with the upper end of each of the two panels apart and the lower end of each of the two panels pivoted towards each other for positioning the stand in an upright position.

Abstract: A water curtain nozzle is provided. A cylindrical body has an open end configured for attachment to a firehose and a closed end. One or more rows of apertures extends through the cylindrical body generally around half of the diameter of the cylindrical body, and said one or more rows of apertures being oriented to expel fluid from the cylindrical body perpendicular to a longitudinal axis of the cylindrical body. The disclosed water curtain nozzle expels fluid in a generally semicircular dispersion pattern that forms a water curtain that can be placed between a burning structure and neighboring structures to prevent fire from spreading to the neighboring structures.

Abstract: A utility connection system can include a primary utility spline having a length and a support frame. The utility connection system can include one or more utility conduits extending along at least a portion of the length of the primary utility spline and supported by the support frame. The system can include a sensor hub including one or more sensors; and one or more branch access interfaces having one or more ports in communication with the one or more utility conduits. The utility connection system can include a branch utility spline connected to the primary utility spline at the one or more branch access interfaces.

Abstract: Environmentally-clean wildfire inhibitor liquid biochemical solutions produced from an aqueous mixture of alkali metal salt derived from a non-polymerized saturated carboxylic acid, and dissolved in water along with a dispersing and coalescing agent, realized as an ester of a non-polymerized saturated carboxylic acid, and dissolved in the water to provide a liquid fire inhibitor solution that can be sprayed on combustible surfaces to form thin alkali metal salt crystalline coatings on the combustible surfaces when and as water molecules in the liquid fire inhibitor evaporate to the environment during drying operations, to inhibit fire ignition, flame spread and smoke development.

Abstract: A fire suppression composition and method of encapsulation, thermal runaway prevention is provided. The fire suppression composition includes exfoliated vermiculite mixed with a liquid propellant, wherein the composition is chemical free, non-toxic, and biodegradable. Performance additives may be optionally added to improve the performance of the fire suppression composition. The fire suppression composition is intended for a variety of uses, and fire fighting systems. Although it may be used to fight a variety of fires, it is particularly useful for lithium ion battery fires. The exfoliated vermiculite is configured to encapsulate the object or substrate on fire, preventing thermal runaway and escalating fire situations.

Abstract: An aqueous fluorine-free, fire-fighting composition including monosaccharide sugar and/or sugar alcohol, aliphatic anionic surfactant, zwitterionic surfactant, water-miscible organic solvent, and optionally alkanolamine, is provided. The fire-fighting composition commonly does not contain any amine oxide surfactant, nonionic surfactant, or polysaccharide thickener.

Abstract: Provided is an aerosol fire extinguishing agent composition which can be used as a fire extinguishing agent when a fire occurs. This aerosol fire extinguishing composition comprises: (A) an aerosol generating agent component comprising at least one from among ammonia, an alkali metal, an alkali earth metal, and a halogen; and (B) an oxidizing agent component comprising at least one from among a nitrate, a chlorate, a perchlorate, a peroxide, and a metal oxide.

Abstract: The present disclosure provides a hoop cover for a trampoline and a trampoline. The hoop cover includes an annular cover top surface and a first side surface being cylindrical in shape, a circular edge at one side of the first side surface is fixedly connected to an outer rim edge of the cover top surface; a plurality of inner ring fixing straps are distributed along a circumferential direction at an inner rim edge of the cover top surface, each of the inner ring fixing straps is capable of being bindingly attached to the trampoline when in use; and a plurality of outer ring fixing straps are distributed and fixedly connected along a circumferential direction at the outer rim edge of the cover top surface, and each of the outer ring fixing straps is bindingly attached to the trampoline when in use.

Abstract: An exercise device is configured to detachably attached to weight plates and receive a pole that extends to a user end to enable movement of the pole to perform a variety of exercises. The exercise device couples to exercise plates with the shaft of the Y-shaped yoke extending through a plate aperture. A plate pin extends through a plate aperture in a weight plate and is coupled with the Y-shaped yoke. The Y-shaped yoke has a first arm and a second arm that receives a pivot pin therethrough. A pole extends into the shroud of the pivotable tubular receiver and a pole lock secures the pole within the shroud. The pole can then be moved up and down, or pivoted about the pivot pin through the Y-shaped yoke and also rotated within the plate aperture to provide a wide range of motion.

Abstract: An exercise sled (10) for performing a core strengthening exercise routine has a load bearing body (12) with a bottom (14) configured to slide on a ground surface by pushing or pulling by a person performing the exercise routine, a front end which has wall portions (24, 26) for receiving the hands, knees or feet of the person, a rear end which has wall portions (28) for receiving the feet of the person, an intermediate region (20) which has an elevated portion (30) separating a first ramp portion (32) from a second ramp portion (34). Each of the first and second ramp portions has a forward facing ramp surface (36) and a rearward facing ramp surface (38). A first open recess (40, 42) is located between the wall portions at the front end and the forward facing ramp surfaces. A second open recess (44) is located between the wall portions at the rear end and the rearward facing ramp surfaces.

Abstract: An adjustable dumbbell includes a handle and two bells attached on each end. Each bell includes a housing having an interior surface, an intermediate weight having an exterior surface adapted to fit inside the interior surface of the housing, and an inner weight having an exterior surface adapted to fit inside an interior of the intermediate weight. A hole may be formed in each of the housing, the intermediate weight, and the inner weight. An adjustment pin secures the intermediate weight and/or the intermediate weight and the inner weight through the holes when positioned inside the housing. The adjustment pin includes a cap that is rotatable by a user between a first position where the cap fits the exterior surface of the bell, and a second position where at least a portion of the cap extends beyond the exterior surface to facilitate removal of the adjustment pin by the user.

Abstract: A coupling mechanism for an exercise apparatus is disclosed. The coupling mechanism may include a resistance source coupled with a housing, a rod coupled to the resistance source, a clevis coupled to the rod, and a cam rotatably coupled to the clevis about an axis. The cam may include a curved outside surface with a first channel, and a curved inside surface with a second and third channel. The coupling mechanism may also include a cable key coupled to the cam and several cables.

Abstract: A variable height adjusting spotting bar for a spotting system for spotting lifting of weights engaged to a barbell, the spotting system including one or more flexible members coupled to the barbell, comprising one or more bar sections configured to be gripped by a spotter; one or more flexible member take-up spools configured to roll up or roll down along the one or more flexible members to set the variable height adjusting spotting bar to an optimal height for the spotter to provide the best ergonomic force to assist a lifter of the barbell.