A bone lengthening system for tumor prostheses includes a prosthesis, wherein the prosthesis includes an internal battery arranged for a wireless charging; the bone lengthening system further includes an extendable mechanism connected to the prosthesis and the extendable mechanism is arranged to be lengthened for, when in use, bringing a length of a limb provided with the prosthesis to a value corresponding to a length of a healthy limb based on healthy limb length data.

A tear shaping structure or structures that shape a tear film of an eye thereby enabling a desired refractive effect. The tear shaping structure includes a supporting structure supporting a plurality of capillary action members, the capillary action members being spaced apart and arranged in such a way as to create a desired refractive lens effect by shaping the tear film of an eye.

An example reinforcement ring for intraocular lenses may include at least include a support structure, first and second optical windows disposed on opposing sides of the support structure, and a reinforcement ring included in the apparatus to strengthen the support structure and the first and second optical windows. In some examples, the reinforcement ring is formed from a shape memory alloy, such as Nitinol.

According to an aspect, an inflatable penile prosthesis includes a fluid reservoir configured to hold fluid, an inflatable member, and an electronic pump assembly configured to transfer the fluid between the fluid reservoir and the inflatable member. The electronic pump assembly includes a pump, an active valve, and a controller configured to receive an external signal to activate an inflation cycle and control at least one of the pump or the active valve to transfer the fluid to the inflatable member. The controller includes a printed circuit board assembly. The printed circuit board assembly includes a microprocessor or a state machine.

According to an aspect, an electronic pump assembly includes a pump configured to move fluid between from or to a fluid reservoir of a device. The pump includes a passive valve. The electronic pump assembly includes a controller configured to actuate the pump and a flow modifier configured to restrict a flow of fluid entering or within the pump.

An implantable inflation device includes a fluid reservoir defining a cavity, an inflatable member; an inflation fluid, a pump assembly, and a circuit for measuring electrical resistance. The pump assembly is configured to transfer the inflation fluid from the fluid reservoir to the inflatable member. The circuit is configured to measure an electrical resistance between the inflation fluid within the implantable inflation device and a body of a patient in which the implantable inflation device is implanted.

An implantable fluid operated device may include a fluid reservoir configured to hold fluid, an inflatable member, and an electronic fluid control system to transfer fluid between the fluid reservoir and the inflatable member. The fluid control system includes at least one pump or at least one valve including a piezoelectric actuator. The piezoelectric actuator can include a piezoelectric element that deforms in response to a voltage applied by an electronic control system of the fluid control system, and a diaphragm that deforms in response to deformation of the piezoelectric element. An isolation layer may be coupled to the piezoelectric element to isolate the active piezoelectric element from non-active portions of the piezoelectric actuator.

An implantable fluid operated device may include a fluid reservoir configured to hold fluid, an inflatable member, and an electronic fluid control system to transfer fluid between the fluid reservoir and the inflatable member. The fluid control system includes at least one pump and at least one valve including a piezoelectric actuator. The piezoelectric actuator includes a diaphragm, and a piezoelectric element coupled to the diaphragm. The piezoelectric element deforms in response to a voltage applied by an electronic control system of the fluid control system. The diaphragm deforms in response to deformation of the piezoelectric element. The piezoelectric actuator actuates the at least one pump and at least one valve to control a flow of fluid based on one of an amount of deformation or a direction of the deformation of the diaphragm.

An eye-mountable device is provided that includes an eyelid occlusion sensor. The eyelid occlusion sensor is used to detect winks, squints, downwards glances or looks, blinks, or other eye-based gestures generated by the user. Based on the detected gestures, an optical power of an adjustable lens of the device may be changed or some other operations could be performed by the eye-mountable device. Such operations could include toggling the optical power of the lens between first and second power levels due to the user squinting, looking downward, or performing some other gesture. Additionally or alternatively, such operations could include setting the optical power of the lens to a first optical power unless the user is looking downward, in which case the optical power of the lens could be set to a second optical power.

Aspects of the present disclosure relate to controlling a bioprinted tissue. A set of sensor data collected from one or more sensors associated with a bioprinted tissue is received. The set of sensor data is analyzed to determine whether a condition for controlled movement of the bioprinted tissue is met. A control signal is issued to a set of expansive elements to perform the controlled movement in response to determining that the condition for controlled movement of the bioprinted tissue is met.