A catheter-based device for determining the radial expansion force required to displace an occlusion in a vessel located in a subject. The device comprises an elongate body defining proximal and distal termini. The body comprises a sheath that encloses a hollow lumen within, which extends along substantially the full length of the body. The proximal terminal region of the body comprises: a user-interfacing hub, the hub comprising a handle for maneuvering the body and configured for handling by an operator; a control interface for controlling the device; and a sensor configured to measure one or more parameters relevant to a force applied to the vessel by the device. The distal terminal region of the body comprises an expandable member movable between a retracted position, in which the expandable member is within the hollow lumen, and a deployed position, in which the expandable member is disposed beyond the distal terminus, and controllable via the control interface to expand radially. The expansion of the expandable member is correlated to a defined radial expansion force value.

Embodiments of the present invention provide for maintaining a level set of a pulmonary artery catheterization apparatus that includes a pulmonary artery pressure sensor in communication with a pulmonary artery catherization manifold affixed to a pulmonary artery catheter. The method includes calibrating leveling of the pulmonary artery pressure sensor (at the level of the right atrium) with the pulmonary artery catheterization manifold by recording a vertical level of a leveling base positioned at a common level to the manifold, relative to a vertical level of a leveling sensor positioned at a common level to the pulmonary artery pressure sensor. The method further includes monitoring a difference between the recorded vertical level of the leveling base relative to the vertical level of the leveling sensor. Finally, the method includes generating an alert in a user interface element of the leveling sensor in response to the monitored difference exceeding a threshold value.

A tissue expansion system includes an expandable bladder for placement beneath the skin corresponding to a tissue to be expanded, a fluid source, a pump coupled to both the fluid source and the expandable bladder to deliver inflation medium thereto, a controller for the pump, a pressure sensor for monitoring pressure within the expandable bladder and informing the action of the controller, and a carrier for holding at least the fluid source, pump, and controller. The carrier is wearable as a bra or form-fitting vest and is shaped to mimic the appearance of natural breasts for the patient. The fluid source can have an outward facing surface that is relatively rigid to maintain a curved shape mimicking that of natural breast(s). The inward facing surface of the fluid source may be flexible to conform to the shape of the underlying skin and tissue as it is expanded.

Devices, methods, and systems are provided for occluding a collateral flow channel between a target lung compartment and an adjacent lung compartment. A video-assisted thoracoscopic device is inserted into a thoracic cavity of a patient and positioned at a fissure between a target lung compartment and an adjacent lung compartment. A collateral flow channel between the target lung compartment and the adjacent lung compartment is then identified using the video-assisted thoracoscopic device and an agent is injected into the collateral flow channel, thereby reducing the collateral flow channel.

Disclosed is an inter- and intra-catheter flow device for the management of vascular bleeding disorders that provide a liquid flow-pass between proximal and distal balloons for bridging the circulation between the upper and lower segments of a hemorrhaging artery or blood vessel, while blocking the blood flow to the hemorrhaging middle segment(s) of the artery or blood vessel between the two or more balloons. When only one balloon is inflated, these devices can create a pressure gradient between proximal or distal and middle segments of the artery or blood vessel. These devices are useful for controlling proximal artery blood pressure, preventing distal ischemia-reperfusion injury, identifying the bleeding location, controlling the bleeding, repairing and remodeling vascular structures, extending resuscitative endovascular balloon occlusion of the aorta (REBOA) use duration, and performing fluid resuscitation.

A urinary catheter conveying device includes a sleeve member, a conveying assembly and a controller. The sleeve member is for sleeving onto a glans of a penis and has a guiding hole to be registered with an external urethral orifice of the glans. The conveying assembly includes a casing removably mounted to the sleeve member, and a conveying mechanism for advancing the urinary catheter to the guiding hole such that the urinary catheter is inserted into the external urethral orifice. The controller controls the conveying mechanism to advance the urinary catheter to the guiding hole. A urinary catheterization system and a method of using the urinary catheterization system are also disclosed.

Novel catheter with longitudinal expandable arid contractile elements which promote wave propagation. The tension-band characteristics of these elements enhance the “crawling” dynamics of the catheter. Tauglit is an aspiration catheter with three key components: an inner spring coil system, a soft pleated jacket with annuli that buckles under load and an outer proleg or leaf-spring that fattens the. diameter of the catheter. Smart features, robotics and AI may be on-boarded. As shown, subject catheters shall piston in a fixed environment (muscular structure such as an artery) and propagate forward akin to earthworm locomotion (Lumbricm terrestris).

An apparatus includes a shaft including a distal shaft end. The apparatus also includes a sleeve slidably coupled to the shaft. The sleeve includes a distal sleeve end. The apparatus further includes a colpotomy cup fixedly secured to the distal sleeve end, and an inflatable balloon positioned over the shaft near the distal shaft end such that the inflatable balloon is configured to manipulate an anatomical structure via movement of the shaft. The apparatus also includes at least one sensor configured to detect at least one of a fluid pressure within the inflatable balloon or a force acting upon the inflatable balloon. The at least one sensor is configured to generate at least one feedback signal based on the detected at least one of a fluid pressure or a force.

A guide wire in which a housing of a sensor is easy to be curved and a slit is hard to fracture. The guide wire includes a core wire, a first helical body, a second helical body, a housing attached to the first helical body and the second helical body, and a pressure sensor located in an internal space of the housing. The housing has slits penetrating a peripheral wall and extending in helices. One of the slits has a central portion extending in the helix in an extending direction and an end portion bent with respect to the central portion along a bending direction.

This application relates to a pressure sensor array for urodynamic testing capable of simultaneously measuring bladder pressure, prostate pressure, and urethral pressure, and to a test apparatus including the pressure sensor array. In one aspect, the pressure sensor array for urodynamic testing is installed in a catheter and includes a base substrate having flexibility.

The pressure sensor array may also include a bladder pressure sensor formed on a portion of the base substrate to be positioned in bladder and measuring bladder pressure. The pressure sensor array may further include a prostate pressure sensor formed on a portion of the base substrate to be positioned in prostate and measuring prostate pressure. The pressure sensor array may further include a urethral pressure sensor formed on a portion of the base substrate to be positioned in urethra and measuring urethral pressure.