A system includes an endoscope configured for insertion into an internal body cavity and a fluid management system. The fluid management system includes a pump configured to pump fluid through the endoscope into the internal body cavity and a controller configured to determine a pressure within the internal body cavity based upon a current feedback signal received from the pump. A method includes supplying a drive signal to a pump to pump fluid into an internal body cavity, receiving a current feedback signal from the pump, and determining a pressure within the internal body cavity based on the current feedback signal.

Brain drainage device having a rod-shaped hollow body with an inner drainage channel for insertion through the cranium into the brain, a first sensor arrangement with at least one sensor for measuring a physical parameter, and a signal interface; wherein the rod-shaped hollow body has a first region A which configured to protrude into the ventricle situated in the brain; wherein the rod-shaped hollow body has a second region B, which is arranged proximally from the first region, wherein the second region is configured to lie in the region of the brain mass; wherein the first sensor arrangement is arranged in the second region in order to measure a physical parameter of the brain mass; wherein the first sensor arrangement is connected to the signal interface such that measurement data determined by the first sensor arrangement are transmitted to a measuring system.

Described herein are systems, devices, and methods for remote assessment and correction of baseline pressure instability of medical pressure sensors. The present disclosure enables centralized surveillance of baseline pressure instability, which provides a technical solution for manufacturers of pressure sensors and/or pressure transducer systems to monitor the proper function of their products. Moreover, health care personnel are provided with means to assess pressure sensor instability and get corrected pressure scores, neither of which are presently unavailable. The disclosure thereby provides a technical solution to a problem of medical pressure sensors that represents risk of harm to patients.

Apparatus for the diagnostics and treatment of conditions presenting as intracranial circulation maladies in reliance upon segmental intracranial compartment pressure, which is established from the interdynamics between intra-cranial and extra-cranial circulation, and which relies upon compression of the extra-cranial vascular network in order to: measure cranial inflow and outflow pressure in the intra-extra cranial collateral (e.g., in the network supplied by the supraorbital artery), to estimate intracranial compartment segmental perfusion pressure; temporarily augment intracranial inflow pressure during a period of the compromise (e.g., common carotid cross-clamp during carotid endarterectomy or extracranial stenosis with low-flow state) and redirect extracranial blood-flow intracranially to augment cerebral circulation and/or introduce therapeutic agents or cold blood to the intracranial compartment.

Methods and systems monitor and assess brain bioimpedance through the use of an ocular window that assesses dynamic changes in cerebral blood volume (CBV). That ocular window is implemented through an ocular bioimpedance device that, in a non-invasive manner, measures numerous different brain health indicators using the hioimpedance measurements collected through the regions around the eyes. The ocular bioimpedance device may be goggles with localized measurement electrodes that include cathodes and anodes.

Embodiments of the invention provide devices and systems to monitor fullness of a patient’s bladder. One embodiment of a bladder fullness (BF) measure system comprises a sensor device (SD) and a controller. The SD generates an output signal (OS) based on the force exerted by the bladder against SD the wherein the OS corresponds to a degree of BF. The SD may be attached to the bladder wall or adjoining tissue and positioned between the bladder and the pubic bone such that the SD is not affected by tissues force other than that from the bladder. The controller connects to the SD and causes an associated implant to perform a function when the SD output signal exceeds a predetermined threshold. Embodiments are particularly useful for providing information on BF to patients suffering from spinal injury or other conditions whereby they have lost the ability to sense BF and/or voluntarily urinate.

The present disclosure provides compositions which may be used as tissue engineering materials, and more particularly xylitol-doped citrate polymer compositions which may be useful as bone grafts.

A catheter includes an insertion tube, a flexible substrate and one or more electrical devices. The insertion tube is configured for insertion into a patient body. The flexible substrate is configured to wrap around a distal end of the insertion tube and includes electrical interconnections. The electrical devices are coupled to the flexible substrate and are connected to the electrical interconnections.

The present invention is directed generally to a method and apparatus for human brain neuroprotection during surgery. The invention includes use of a heart-lung machine to generate periodic rectangular pulsation of blood flow. The invention uses a non-invasive CA monitor to continuously record transient functions such as dynamic autoregulation functions of a human brain cerebrovascular autoregulation system and process the data to generate an alarm to indicate CA impairment and take steps to minimize the CA impairment event.

A system and method to measure the intraocular pressure (IOP) of an eye and reflected impedance of an eye based on the generation of a source of electromagnetic wave energy with a radar generating device, creating a pattern of the generated electromagnetic wave energy at a predetermined frequency and radiating the pattern of electromagnetic wave energy onto a surface of an eye and within, from a distance, and receiving reflected energy back from the surface of the eye, converting the reflected wave energy into a Smith Chart display data format that can process the electromagnetic resonance reflection properties of the eye and display these reflection properties for IOP and for assessing other eye diseases as well as sensing indicators of brain diseases.