Flip Technologies Limited

Janisys Limited

Eoin Bambury

John O'Dea

Adrian McHugh

Adrian Mchugh

A balloon catheter comprises a catheter and a balloon located on the distal end of the catheter. A pair of stimulating electrodes for receiving a constant current stimulating signal when the balloon is inflated with an electrically conductive medium and a plurality of sensing electrodes for producing voltage response signals are located on the catheter. The voltage response signals are indicative of the values of the transverse cross-sectional area of the balloon adjacent the sensing electrodes. A first lumen accommodates the inflating medium to and from the balloon, and a second lumen accommodates electrically conductive wires to the stimulating and sensing electrodes. A pressure sensing element is located in a protective housing in the second lumen, and communicates through a communicating opening in the protective housing and through a communicating port in the catheter with a hollow interior region of the balloon. The balloon catheter may also be provided with a guide wire engaging element for engaging a guide wire externally of the balloon catheter.

Method and apparatus for forming a stoma and a balloon catheter

A micro-needle device comprising an active substance layer () having a plurality of active substance chambers () formed therein, a drive substance layer () having a plurality of drive substance chambers () formed therein and a needle support layer () having a plurality of micro-needles () extending therefrom. An activation layer () comprising a plurality of heating elements () for heating an expandable drive substance () located in the drive substance chambers () for in turn urging the second membrane () into the active substance chamber () for pressurizing and urging an active substance () therefrom through the corresponding micro-needle (). A plurality of membrane accommodating recesses () extend into the needle support layer () for accommodating the first membrane () as the active substance in the corresponding active substance chamber () is pressurized. A puncturing member () with a piercing point () extends into each membrane accommodating recess (). A barrier grating () extends across each active substance chamber () for preventing contact between the second membrane () and the corresponding puncturing member ().

Fluid transfer device and an active substance cartridge for the fluid transfer device, and a method for controlling the pressure at which an active substance is delivered to a subject from a fluid transfer device

A micro-needle delivery device () comprises an active substance accommodating layer () having active substance accommodating chambers () therein, a drive substance accommodating layer () having drive substance accommodating chambers () therein aligned with the active substance accommodating chambers (), an activating layer () having heating elements () aligned with the drive substance accommodating chambers () for heating a drive substance therein, and a micro-needle element () having a needle support layer () and a plurality of micro-needles () extending therefrom. A burstable first membrane () is located between and sealably secured to the micro-needle element () and to the active substance accommodating layer () for sealably closing the active substance accommodating chambers () at one end. A second stretchable membrane () is located between and sealably secured to the drive substance accommodating layer () and to the active substance accommodating layer () sealably closes the active substance accommodating chambers () at the other end, and the drive substance accommodating chambers (). A third membrane () sealably closes the drive substance accommodating chambers ().

Transfer device for transferring a substance between the device and a subject

Catheter, a balloon catheter and a method and apparatus for monitoring the transverse cross-section of a stoma

A balloon of a balloon catheter is inflated with a liquid inflating medium by a syringe through a flow line. Air in the flow line and the balloon is displaced into a return line. The balloon is deflated by drawing the liquid inflating medium from the balloon along with the air in the return line into the syringe where the air is trapped in the syringe. The balloon is reinflated and deflated by the syringe until the level of air in the liquid inflating medium has been reduced to a predefined level. A first non-return valve and a second non-return valve are provided in the flow and return lines, so that the liquid inflating medium is prevented from flowing from the balloon to the syringe in the flow line and from the syringe to the balloon in the return line.

Growing community of inventors

Navan, Ireland

Eoin Bambury