Covidien LP

Tyco Healthcare Group LP

Motonori Watanabe

Kazuhiro Abe

Katsuki Nagata

Shigeaki Funamura

Kazuhiro Koike

Nobuatsu Kanie

Nobuaki Suzuki

Masashige Hori

Takashi Tanaka

Keita Iwamizu

Masatoshi Yokoyama

Yoshimi Akaike

A catheter with a valve is disclosed that allows smooth flow of a solution in-both when a solution is flowing from the inside of a catheter towards the outside of a catheter and when a solution is flowing from the outside of a catheter towards the inside of a catheter. The catheter includes a tubular bodymade of an elastic and flexible synthetic resin material and is equipped with a valve having a slitpassing through the outer surfaceof the tubular body. The catheter is also provided with the movable wallsunken towards the inside of the tubular bodyat an end tip member regionof the tubular body. The location where the movable wallexists has a structure with differences in hardness in the thickness direction of the tubular body

Catheter with valve

A fistula catheter which allows a supply tube to be easily connected to a body-external fixing member positioned on the body surface side, and which is only slightly invasive for a patient is provided. The fistula catheterincludes a tube bodywhich is inserted into a fistula formed in the abdominal wall and the wall of the alimentary canal; a body-external fixing partwhich is linked to one end of the tube bodyand positioned on the abdominal wall surface side of the fistula; and a body-internal fixing partwhich is linked to the other end of the tube bodyand positioned inside the wall of the alimentary canal. The body-internal fixing part, and the fistula catheter has a flow path allowing fluid to flow through the body-external and body-internal fixing members. The body-external fixing partincludes a flexible tubeand is connected substantially at right-angles to the axial direction of the tube body

Fistula catheter

A gastrostomy tube extension device which can facilitate the insertion or removal operation in and from the patient, and increase the simplicity of manufacture. A gastrostomy tube extension device for inserting or taking out the gastrostomy tube into/from the patient includes a rod, a fixing member, and an engaging member. The rod is formed of a rod-shaped member with engaging stepped portions. The fixing member is capable of moving along the longitudinal direction of the rod, and an engaging projection which can be fixed to the tube member is formed on the peripheral surface of the fixing member. The engaging member includes a lower engaging portion engageable with the engaging projection and an upper engaging portion which is engageable with the engaging stepped portion This assembly allows the extension to be locked.

Gastrostomy tube extension device

A stylet is provided which makes it possible to improve the handling of a catheter while also facilitating insertion of the catheter. A catheter set having such a stylet is also provided. A stylet with a hole and a stylet without a hole include, respectively: a stylet main body; an engaging part; a film-like linking part for linking the stylet main body and the engaging part; and a soft tip end part which is provided at a tip end of the engaging part. The engaging part has a tapered tubular shape which can expand and contract thanks to an alternating arrangement of soft parts and rigid parts in the peripheral direction. The stylet main body is then pulled rearwards from a state in which the stylet with a hole and the stylet without a hole are assembled with a catheter, thereby enabling the engaging part, which can engage with the edge of the opening of the catheter, to contract in the radial direction and be withdrawn.

Stylet and catheter set

A gastrostomy tube extension device used for inserting or taking out the gastrostomy tube into/from the hole on the patient includes a rod, a fixing member, and an engaging member. The rod is formed of a rod-shaped member, and may be formed with engaging stepped portions on the proximal portion thereof. The fixing member is adapted to be capable of moving along the longitudinal direction of the rod, and an engaging projection which can be fixed to the tube member is formed on the peripheral surface of the fixing member. The engaging member includes a lower engaging portion engageable with the engaging projection and an upper engaging portion which is engageable with the engaging stepped portion. This assembly allows the extension to be locked, allowing the operator to manipulate the device with a single hand.

A fluid flow detector includes a detector main body defining a fluid flow channel having a fluid flow detection channel positioned adjacent an upstream hole and a discharge channel positioned adjacent a downstream hole. A mobile body is positioned within the fluid flow channel and dimensioned to be movable along the fluid flow channel. The diameter of the fluid flow detection channel is smaller than the diameter of the discharge channel, and the maximum diameter of the outer peripheral edge part of the face of the fluid flow channel orthogonal to the direction of movement of the mobile body is slightly smaller than the diameter of the fluid flow detection channel. The upstream hole and the downstream hole are formed with a size and shape such that fluid can flow through the upstream and downstream holes without being obstructed by the mobile body.

Growing community of inventors

Fukuroi, Japan

Motonori Watanabe