A diagnostic tool and methods of using the tool are provided to quantify an amount of nasal collapse in a patient. The diagnostic tool includes a mask with an endoscope port and an opening to allow air flow, an endoscope with a camera adapted to take an image of the nasal valve, and an air flow sensor adapted to measure an inhalation rate of the patient. The diagnostic tool can quantify a size difference between the nasal valve during inhalation and zero flow by calculating a percentage difference in an area or one or more dimensions of the nasal valve during inhalation and zero flow.

Impedance devices with integrated circuit modules and method of using the same to obtain luminal organ information. In one embodiment, a device comprises an elongated body for at least partial insertion into a mammalian luminal organ and having a first conductor extending therethrough, a proximal electrical unit connected to the elongated body to deliver power along the first conductor, and a sensor substrate located at or near a distal end of the elongated body and comprising a circuit module operable and/or configured to direct the sizing portion to obtain sizing data and the pressure sensor to obtain pressure data, and facilitate transmission of the sizing data and/or the pressure data to the proximal electrical unit.

A medical device deployment system includes a main body and a guidewire capable of being passed through the main body and including a lumen. An optical shape sensing (OSS) system is configured to pass through the lumen in the guidewire. The OSS system is configured to measure shape, position or orientation of an endograft relative to a blood vessel for placement of the endograft.

A volume of a wound is estimated using a dynamic pressure response measured during instillation of fluid to the wound using a negative pressure wound therapy system. A previously estimated wound volume may be used to detect and prevent overfill of fluid to the wound during future instillation events. For example, real-time pressure measurements may be compared to model data representative of expected pressure at a wound having a volume equal to the previously estimated wound volume, with instillation being stopped if the observed pressure varies from the expected pressure. A comparison of a total volume of fluid instilled to the wound may also be compared to the previously estimated wound volume to prevent overfill. The comparison of wound volume estimated based on an instillation event may also be compared to a wound volume estimated using other methods to provide a higher confidence wound volume estimate.

An endoscope system includes a light source that emits lights with first to n-th wavelengths, a lens that makes the lights with the first to n-th wavelengths parallel lights, a diffractive optical element (DOE) that converges components of the lights with the first to n-th wavelengths, the components being included in the parallel lights, into first to n-th linear lights at mutually different positions, a slit that projects, onto a subject, first to n-th pattern lights based on the first to n-th linear lights, an imager that captures, as one-frame image, an image of the subject onto which the first to n-th pattern lights are projected, and a processor being configured to calculate a distance to the subject or a shape of the subject based on the image captured by the imager.

A medical puncture needle includes: a metal needle body formed in a tubular shape and including: a blade surface formed at a distal end portion of the needle body, a first transmission window configured to transmit light, and a second transmission window configured to transmit light transmitted through the first transmission window. The second transmission window is located on a proximal end side relative to the blade surface. The first transmission window and the second transmission window are shifted from each other in a circumferential direction of the needle body.

The invention relates to an assembly for use in minimally invasive surgical procedures, including bone implant fixation procedures. The assembly is configured to provide a faster and more accurate measurement of depth of holes for placement of bone screws and fasteners. The assembly includes a guidewire having a deployable distal hook member configured to securely anchor into a desired position relative to a hole drilled in a bone and thereby provide an accurate datum for a measuring instrument for determining a depth of the hole for subsequent screw placement. The assembly further includes a surgical depth instrument to cooperatively function with the guidewire and obtain one or more measurements while operably coupled to the guidewire.

A pellet for testing distal colonic and anorectal function. In one embodiment the pellet comprises a bag comprising the exterior of the pellet wherein the bag is comprised of a polymer that is reactive with a catalyst to form a more solid-like substance. In another embodiment, the pellet may comprise one of a grapheme layer, a wavelength transducer, or a magnetically attractive element. In another embodiment the pellet may comprise a telescopic extender and further comprise a telescope bad coupled to the telescopic extender.

A tissue treatment system and method of using the tissue treatment system determines a size of a body lumen, or a neuromodulation parameter corresponding to the size of the body lumen. The tissue treatment system fills a balloon with a fluid when the balloon is within a body lumen. A fluid parameter of the fluid is detected over a period of time. A parameter curve of the fluid parameter is determined. The parameter curve includes the fluid parameter versus an independent variable over the period of time. The system compares the parameter curve of the fluid parameter to a reference curve and, based on the comparison, determine the body lumen size or the neuromodulation parameter. Other embodiments are also described and claimed.

Methods, systems, and coaptation measurement devices as described herein include an elongate sensor body at the end of a proximal connecting member, and a plurality of sensors in an array across a face of the sensor body, wherein each sensor of the plurality of sensors is configured to detect if a portion of a heart valve is in contact with the sensor.