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Methods and devices are provided for enhancing mass transport through any fibrous tissue capsule that may form around an implanted medical device following implantation. Methods and devices are also provided to enhance vascularization around the implanted device, which also will aid in mass transport to/from the device. The device preferably comprises multiple reservoirs containing (i) a drug formulation for short- or long-term, controlled drug delivery, (ii) sensors for sensing an analyte in the patient, or (iii) a combination thereof.

A pelagic free swimming aquatic vehicle includes a rigid forebody having a predetermined volume; a watertight chamber in the forebody; and a flexible afterbody having a lesser volume than the forebody and including a maneuvering and propulsion propulsion structure and a drive system for driving the structure with a traveling sinusoidal wave motion.

Various methods, apparatuses, and systems in which a single-track vehicle has a retractable auxiliary-support wheel assembly and a computer control system. In an embodiment, the single-track vehicle has an elongated body. The retractable auxiliary-support wheel assembly mounts on both sides of the elongated body. The computer control system analyzes signals from one or more sensors to dynamically balance the single-track vehicle.

An improved motorized axle system for use in vehicles comprising:

• a first motorized axle and a second motorized axle;
• the first motorized axle is larger than the second motorized axle;
• each motorized axle comprises: a stator block, a stator, a rotor, at least two bearings, and an axle;
• the stator block comprising an upper member and a lower member for use in providing a housing for the stator and rotor;
• the stator comprising at least one armature coil for forming a rotating magnetic field;
• the rotor comprising a set of permanent magnets;
• the axle comprising an axle drive line having a first end and a second end, the axle drive line being elongate and adapted to define the width of a vehicle;
• the bearings are disposed around the rotor shaft circumferentially.

A method of collecting target regions from a target object is described. The method in one embodiment comprises mounting a negatively-charged membrane on a first side of a substrate, mounting a target object on the membrane, positioning a collection material adjacent to the target object, and passing a laser beam from a second side of the substrate, through the substrate, the membrane, and the target object, to dissect target regions from the prepared tissue section, whereby the dissected target regions adhere to the collection material. In another embodiment, the present invention is a system for collecting target regions from a target object. In one embodiment, the system comprises a substrate having a first side and a second side, a negatively-charged membrane adhered to the first side of the substrate, and a collection material mountable adjacent to the membrane. In another embodiment, the system further comprises an inverted microscope, a stage for holding the substrate over the microscope, a generator operable to generate a laser beam to pass through the substrate from the second side and to dissect target regions from a target object mounted on the membrane, whereby the dissected target regions adhere to the collection material. In the preferred embodiments, the target objects are tissues and the target regions are cells.

A substantially rigid or semi-rigid chair suitable for white-water use with a hydrodynamically efficient underwater profile, capable of efficient human propulsion, using hands and/or legs, which supports the user in a semi-reclining position and which is sufficiently maneuvrable, in both forward and reverse direction, to enable the user to engage in white-water river use. In one embodiment, the chair consisting of two floats (2, 3), rigid/semi-rigid seat base (4), bow hull floor section (12) an adjustable seat back (8) and a waterproof covering (7). The floats (2, 3) are separated by a rigid/semi-rigid central section (15) comprised of the seat base (4), bow hull floor section (12) which extends from the bow (6) for a majority of the chair's length, and together with the seat back (8) providing a semi-reclining body position enabling the user to use hands and/or legs for propulsion/maneuvring.

The present invention relates to an insole, midsole or unified outsole-midsole-insole device for use with an article of footwear, displaying significant improvement over conventional similar insole type products through its ability to offer to the wearer an adjustable biofeedback component for the rehabilitation and strengthening of the foot's muscles, as well as an adjustable motion control component for the purpose of controlling the pronation and arch deflection of the human foot during gait. Through this means wearers of the device gradually strengthen their foot while simultaneously decreasing their dependence on secondary motion control structures.

The present invention is a vehicle combining a scooter with a bicycle. As such, it comprises an adjustable scooter frame with a seat and drive mechanism of a bicycle. The drive mechanism is positioned above the scooter platform and forward of the post holding the seat so as to provide a more ergonomic situation for the user. Other means of locomotion are also provided.

A figure that is configured to be propelled through a liquid. The figure including a torso, a flexible appendage coupled to the torso, and a drive configured to move the appendage with respect to the torso.

When phthalic acid is heated in heptane under azeotropic reflux conditions in the presence of a catalytic amount of an arylboronic acid compound (such as 2,6-(diisopropylaminomethyl)phenylboronic acid or 2,6-bis(diisopropylaminomethyl)phenylboronic acid), phthalic anhydride is obtained in high yield.

An apparatus is disclosed by means of which an operator both propels and steers a scooter, tricycle, or bicycle with a single set of handlebars. Power is applied by pumping the handlebars up and down, and steering is positive, and very similar to that of a conventional bicycle or tricycle. Drive means includes a single one-way clutch and a reciprocating endless chain or cable member which does not require a rewind spring. The total mechanism is very simple, the reciprocating components are few and light weight, and a long stroke yields a functional efficiency and top speed.

A small skate device is described which in the user is supported and transported by two of such skates, one under each foot. Each skate has three or four wheels, one or two per axle of each device. Each wheel is mounted on the axles with at least one bearing. The two axles of the skates are supported on angled pivots so as to cause the skate to turn when the upper surface is angled with respect. to the ground. The upper surface, or deck, has either frictional material applied to the top face, small spring release bindings, or straps to hold the user's foot in place.

Living cells, such as red blood cells (RBCs) modified with functional micromotors with the aid of ultrasound propulsion and magnetic guidance. Iron oxide nanoparticles are loaded into the RBCs, where their asymmetric distribution within the cells results in a net magnetization, thus enabling magnetic alignment and guidance under acoustic propulsion. The RBC motors display efficient guided and prolonged propulsion in various biological fluids, including undiluted whole blood.

The invention provides a sea and air amphibious propeller. The propeller comprises a ducted propeller stator, air propellers, air propeller rotors, ducted propellers and ducted propeller rotors, wherein a group of magnets is fixed on the air propeller rotors and the ducted propeller rotors respectively, the air propeller rotors and the ducted propeller rotors rotate coaxially and are nested to thesame ducted propeller stator, and two coils corresponding to the air propeller rotors and the ducted rotors respectively are embedded into the ducted propeller stator. The air propellers are used foraerial propulsion, water propellers are used for underwater propulsion, and the both can work independently. During underwater propulsion, the air propellers are folded back and rotated at a lower speed to eliminate the resistance to the air propellers, and the shaftless ducted propellers work to generate propulsion. In the air, the air propellers are unfolded and rotate to generate propulsion, and the ducted propellers assist the operation. The shaftless ducted propellers have good propulsion performance under water, the air propellers are suitable for working in the air, and the air propellers are combined with the shaftless ducted propellers to realize efficient propulsion and free switching under water and in the air.

The marine propulsion set (1, 1′, 1″) comprises: at least one pod (2) that is mechanically connected to a support strut (3, 3′, 3″); a propeller (4) that is situated at the aft end of the pod and that has at least two blades (14); and an arrangement of at least three flow-directing fins (50 to 55, 3′A) that are fastened to the pod (2). This arrangement of fins forms a ring (5) that is substantially perpendicular to the longitudinal axis (X) of the pod (2), said ring lying within a zone (Zx) that is situated between the central portion of said support strut (3, 3′, 3″) and the propeller. The propulsion set further comprises a nozzle (6) that surrounds, at least in part, the propeller (4) and said ring (5). Each of said blades (14) presents an end with an edge (7) coming flush with the inside wall of the nozzle (6) so that the propeller (4) constitutes the rotor of a screw pump.

The invention provides a water surface navigation device capable of being propelled by utilizing wave energy, comprising a floating body, a wave energy conversion device, a power generation device and a propelling device, wherein the wave energy conversion device is composed of a wing plate, an upright column, a rack and a gear, the upright column vertically penetrates through the floating body from a open pore in the bottom of the floating body, the bottom is fixedly connected with the wing plate, the rack is mounted on the side face, and the rack is meshed with the gear; fluctuation of the wave causes the vertical movement of the floating body and the upright column, the stress and movement of the upright column and the floating body have an amplitude value and a phase difference, and the relative movement drives a generator to generate power through rotation of the gear; the power generation device is composed of a speed change gear box, a generator, a rectifying and voltage stabilizing device and an accumulator; and the propelling device comprises a motor control system, a motor, a crank mechanism and a flapping wing, a motor shaft is connected with a crank shaft, the lower end of a connecting rod is connected with the flapping wing, the motor rotates so as to drive the crank shaft to rotate, and the flapping wing reciprocates up and down to produce thrust so as to propel the navigation device to advance. The water surface navigation device provided by the invention effectively utilizes the wave energy and conforms to the environment-friendly idea of zero discharge and no pollution.

The invention discloses an independent drive steering system of a six-wheel rocker arm unmanned lunar rover, which mainly comprises a steering mechanism, a driving mechanism and wheels. A walking system of a middle wheel does not comprise a steering system. The steering mechanism comprises an upper steering motor sleeve, a lower steering motor sleeve, a steering motor, a steering planetary gear accelerator, a bidirectional thrust ball bearing sleeve and a sealing ring. The driving mechanism comprises left and right motor sleeves, a driving motor, a driving planetary gear accelerator, an angular contact ball bearing and a clamping ring. The wheels are matched with the wheel baffle rings. The design process comprises the following steps of 1, designing parameters of a driving system motor and a planetary gear accelerator reducer, 2, designing parameters of a steering system motor and the planetary gear accelerator reducer, 3, determining the size and assembly relationship of the motor sleeve, 4, designing the structure of the wheel, 5, realizing structural design of a steering system, 6, conducting structural design of a driving system and wheels, and 7, conducting system sealing design.

A balanced rotary cycling machine suitable for use as an internal combustion engine, compressed gas or steam engine, compressor or pump is disclosed herein. The rotor assembly consists of four articulating pistons where the opposite pistons are inter-linked with each other by pivoted rods comprising a parallelogram mechanism and therefore eliminating a need for pivots between pistons. The rotor assembly rotates inside or outside of a circular or non-circular stator depending on the configuration chosen. A variety of mechanisms for shape deformation of four piston assembly during its rotating cycle is also disclosed herein, as well as detailed descriptions of preferred embodiments, including a four cycle internal combustion engine with circular stator, marine engine with polymer parts and a four cycle automobile rotary engine with conventional oil pan. In addition, a method of operation of external rotary combustion engine, employing a high-pressure compressor and an external combustion chamber, is disclosed. This invention also teaches a novel lubrication system for rotary engine providing low emissions. The engine has few moving parts, simplified circular or semi-circular stator shape and utilizes simple and effective sealing techniques. It is fully balanced, has very low friction and heat losses and can employ a pre-designed configuration of the combustion chamber for a desired compression ratio and power output.