Sumitomo Bakelite Company Limited

Other

Murata Machinery, Ltd.

Suzuki, Yutaka

Hideaki Matsunami

Masao Ikeda

Yutaka Suzuki

Yukihiko Sakaguchi

Etsuro Yamabe

Yasunori Kojo

Takuya Hayashi

Ryo Tanaka

Hiroshi Utsugi

Keiji Kamada

Wataru Otsuka

Tsutomu Mekata

Tomokazu Nakayama

Tetsuro Abe

Keiji Kamata

An endoscopic clip device including a clip, a treatment instrument body comprising a sheath, an operation wire, and a distal connection portion, a sleeve accommodated inside the sheath and accommodating the connection portion in distal portion of the wire such that portion of inner diameter of the sleeve is smaller than outer diameter of the locking portion when the connection portion is drawable from the accommodation portion. The sleeve has diameter enlargement portion on distal side of the sleeve and elastically self-openable, a diameter reduction step portion on proximal side of the enlargement portion, and a sleeve body positioned on the proximal side of the enlargement portion from the step portion and having radial rigidity higher than that of the enlargement portion, and the inner diameter of the sleeve body is smaller than the outer diameter of the locking portion when the connection portion is drawable from the accommodation portion.

Endoscopic clip device and clip

According to the present invention, there is provided a clip cartridge in which a clip having a structure enabling a user to easily perform a series of procedures can be easily and reliably mounted on a treatment instrument body. A clip cartridge () according to the present invention includes an inner case () that has a first accommodation region () for accommodating a clip (), and an outer case () that has an elongated insertion hole () into which a treatment instrument body () is inserted, and a second accommodation region () which accommodates the inner case () so as to be movable. The treatment instrument body () is inserted into the insertion hole (), and an operation wire is pressed forward so that a distal connection portion and a diameter enlargement portion of the sleeve protrude from the sheath to a distal side and enter the second accommodation region (), and so that a diameter enlargement portion is elastically enlarged in diameter. The operation wire is further pressed so as to bring a distal connection portion and the clip () into a mutually connected state. The operation wire is pulled so that the inner case () moves backward relative to the outer case () so as to press the sleeve backward, thereby drawing the diameter enlargement portion into the sheath while reducing the diameter enlargement portion in diameter.

Clip cartridge

The present invention provides a sheath for gastrostoma (), a sheathed dilator, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma. The sheath for gastrostoma () includes a sheath body () in which a gastrostomy catheter () is inserted and a handle (). The sheath for gastrostoma () lowers the insertion resistance of a gastrostomy catheter when inserted in a fistula before insertion of the gastrostomy catheter in the fistula for replacement in the patient's body. According to the invention, a sheath for gastrostoma, a sheathed dilator, a sheath for gastrostoma with insertion aid, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma which can lower the insertion resistance during placement of a catheter in the patient's body, facilitate air supply control of an endoscope and stabilize endoscopic visual field during surgery are provided.

Sheath for gastrostoma, sheathed dilator, sheath for gastrostoma with insertion aid, gastrostomy catheter kit, and method of splitting sheath for gastrostoma

A medical device includes a main body elongated in a vertical direction. A guide section protrudes from a lower end of the main body in a direction crossing the vertical direction and includes first and second guide holes. A first unit includes a first puncture needle slidably supported by the main body near an upper end of the first puncture needle in the vertical direction and having a sharp lower end slidably inserted into the first guide hole from above. The first unit has a first holding plate integrally fixed to the first puncture needle. A second unit includes a second puncture needle slidably inserted into the second guide hole from above and a second holding plate integrally fixed to the second puncture needle. The second holding plate separably abuts on the first holding plate from above. A position of the second guide hole is selectable along the guide section.

Medical device

A medical device () includes a main body (); a first piercing needle () provided slidably with respect to the main body (); a first holding plate () adapted to hold the first piercing needle () and provided slidably on the main body (); and a second holding plate () adapted to hold a second piercing needle () and detachably and movably mounted on the first holding plate (), wherein the second holding plate () is mounted so as to move to the first holding plate () in a predetermined direction.

Medical device and method of fixing internal organ

Growing community of inventors

Akita, Japan

Hideaki Matsunami