Tsukada Medical Research Co., Ltd.

Mitsubishi Heavy Industries Limited

Japan Aerospace Exploration Agency

Osamu Tsukada

Yasuhiko Nakajima

Hiroyasu Mizuno

Dai Shiba

Masato Shimizu

Kengo Kanai

Naoki Takizawa

Yusuke Hagiwara

Tomohiro Ueda

Makoto Ohira

Atsuko Homma

Akihiko Nakasa

Masaki Shirakawa

Kazutoshi Kusano

Hirochika Murase

Akane Yumoto

Manabu Tsukada

Kodai Kinoshita

Satoshi Takasaka

Haruna Koike

Jumpei Yoshida

Nami Hatakeyama

Teruhiro Senkoji

Masamichi Iijima

A fluid supply apparatus that can eliminate the need for a power supply source, and store fluid efficiently. The apparatus may comprise a first balloon that is formed of an elastic body to be capable of storing the fluid, a second balloon that is formed of an elastic body to be capable of storing the fluid, and has a larger contraction force than a contraction force of the first balloon, a support member that supports both of the first balloon and the second balloon, and a casing that houses the first balloon and the second balloon, and defines inflation ranges of the first balloon and the second balloon, in which the support member has a flow path formed to permit fluid communication between an interior of the first balloon and an interior of the second balloon.

Fluid supply apparatus

A purpose is to enable partial replacement of an indwelling urethral catheter. A unit for a balloon catheter according to the present invention includes a urethral catheter tube () provided with a first urethral catheterization passage (), a branch tube () provided with a first passage () adapted to allow passage of a liquid used to inflate or deflate a balloon (), and a connecting tube () configured to be connected at one end to the first urethral catheterization passage () or the first passage ().

Unit for balloon catheter, and indwelling urethral balloon catheter

There is provided a liquid supply apparatus eliminating the need for a power supply, having relatively light weight and small footprint, and ensuring a stable liquid supply. The liquid supply apparatus includes a first support member, a second support member, a balloon having one end supported by the first support member and the other end supported by the second support member, and a casing having a constant longitudinal length. The balloon is disposed in the casing and is configured so as to be able to hold a liquid therein and discharge the liquid therefrom. When the balloon holds the liquid, the one end and the other end of the balloon are positioned in the case.

Liquid supply apparatus

A catheter for treatment of sinusitis capable of causing a space in a further rear (distal side) of a posterior nasal aperture to communicate with external air is provided. The catheter comprises an anterior nasal aperture balloon, an anterior nasal aperture balloon air supply lumenfor inflating the anterior nasal aperture balloon, a posterior nasal aperture balloon, a posterior nasal aperture balloon air supply lumenfor inflating the posterior nasal aperture balloon, and a drainage lumenhaving an openingbetween the anterior nasal aperture balloonand the posterior nasal aperture balloon, in which an external air communication lumenhaving an openingon a distal side from the posterior nasal aperture balloonis further provided.

Catheter for treatment of sinusitis

A continuous drug solution infusion device is provided that is capable of administering a drug solution into a patient's body for a predetermined period of time substantially at a predetermined flow rate from the beginning to end of the drug solution infusion by suppressing the change in pressure from the beginning to end of the infusion. The continuous drug solution infusion device has at least two tubular members disposed in series along an infusion path for a drug solution and at least one expandable/contractible tubular member disposed between the tubular members.

Continuous drug solution infusion device

An intermittent urethra self-retaining catheter setcomprises a catheter unit, a disinfectant casing, and a cap. The catheter unitincludes a catheter bodyhaving an urine-guiding passageand a water-guiding passagethat extend along a longitudinal direction and are separated from each other, a balloonattached to a distal end of the catheter bodyin an inflatable manner and communicated to the water-guiding passage, an elastic plugattached to an intermediate portion of the catheter body, a branched tubebranched from the catheter bodyabove the elastic plugand communicated to the water-guiding passage, a reservoirattached to a free end of the branched tubein a collapsible manner for storing a sterilized water, an on-off valveattached to an intermediate portion of the branched tube, and a reinforcement tubeinserted into an upper interior of the urine-guiding passagein the catheter body. The disinfectant casingis detachably fitted on the elastic plug in a sealing manner for containing a lower part of the catheter bodybelow the elastic plugand for storing a disinfectant liquid. The capis detachably fitted on a top portion of the catheter bodyfor opening and closing an outlet port. The on-off valveis adapted to open and close a passage in which the sterilized waterflows between the reservoirand the balloon

Intermittent urethra self-retaining catheter set

A motorized infusion injection system having an information card record side unitand an information card user side unit. Unitincludes an information cardon which medication information is written for a patient, a reader/writerthat can read/write the medication information from/on the information card, and an inputfor inputting the medication information. Unitincludes a readerfor reading out information from the information card, an inputfor inputting personal information of a patient and a controllerto generate a medication signal. A transducerreceives the medication signal and transduces the medication signal to a mechanical signal, and a motorized PCA pumpconnected to an infusion storing-containerthat contains a given infusionand to an injectorthat injects the infusion into a body of the patient for supplying the infusionfrom the infusion storing-containerto the injector

Motorized infusion injection system

A catheter for intermittent self-conduction of urine which is relatively hard to deflect easy to insert into a body, and eliminate any pain and danger while in the body. A catheter for intermittent self-conduction of urine comprises an urine conduction tube ( ) having an urine conduction aperture ( ) in a distal end ( ) thereof, a holder ( ) coupled to a proximal end ( ) of the urine conduction tube ( ) and adapted to be detachably engaged with an inlet port ( ) of a sterilizing solution case ( ) which is adapted to contain a sterilizing solution ( ), and a cap ( ) for closing an outlet ( ) of the holder ( ). The urine conduction tube ( ) is a dual layer tube including an inner tube member ( ) made of a hard synthetic resin material which is medicine-proof and an outer tube member ( ) made of a soft synthetic resin material which is medicine-proof. The inner tube member ( ) in the urine conduction tube ( ) is made of a hard synthetic resin material which is medicine-proof and is selected from a group of polytetrafluoroethylene, olefine base resin, polyamide base resin, and polyester base resin. The outer tube member ( ) in the urine conduction tube ( ) is made of a soft synthetic resin material which is medicine-proof and is selected from a group of silicone rubber, fluororubber, and butyl rubber.

Catheter for intermittent self-conduction of urine

A portable painkilling system comprises: a first continuous injector ( ) for liquid medicine which continuously discharges liquid medicine through a control path ( ) in an outlet portion ( ) for a given period of time; a flexible, elastic reservoir ( ) connected to the outlet portion ( ) of the first continuous injector ( ) for liquid medicine at one end thereof, the reservoir ( ) being adapted to constrict in a normal condition and to expand when liquid medicine from the first continuous injector ( ) is being charged into the reservoir ( ) so as to contain a maximum quantity of liquid medicine; and a second continuous injector ( ) for liquid medicine having an inlet portion ( ) connected to the other end ( ) of the reservoir ( ), the second continuous injector ( ) being adapted to receive liquid medicine from the reservoir ( ) and to continuously discharge liquid medicine stored in the second continuous injector ( ) through a control path ( ) in an outlet portion ( ) for a given period of time.

Portable painkilling system

Simplified, automatic opening and closing type urination device

Simple automatic opening and closing type of urination apparatus

Portable analgesic system

A cap (10) for a medical appliance to be retained in a human body includes a lid body (2), a connecting plug body (1), and a hinge (3). The lid body (2) is coupled to the connecting plug body (1) through the hinge (3). The connecting plug body (1), hinge (3), and lid body (2) are integrally formed of the same synthetic resin material. The lid body (2) is provided on a center area on an inner face thereof with an engaging member (4) made of a resilient material. The lid body (2) is provided on an end thereof with a strap (5).

Cap for medical appliance to be retained in human body

Bellows type container charged with liquid medicine

Growing community of inventors

Nagano, Japan

Osamu Tsukada