Terumo Kabushiki Kaisha

Kabushiki Kaisha Cardio-pacing Research Laboratory

Kunimasa Katayama

Shigeru Omori

Tomohiko Hattori

Sadayuki Sakuma

Haruhiko Kamijo

Teruhiko Ouchi

Fuminori Tsuboi

Katsuhiro Shirakawa

Hiroshi Shimane

In order to increase durability against repeated flexure caused in a body tissue or flexure having a very small radius of curvature, and to reduce mechanical stress applied by a lead body on the body tissue, a lead body (,) of an implantable electrode lead is constituted by a conductive coil (,) and a sheath (,). The conductive coil (,) is obtained by helically winding a conductive wire (,), formed with an insulating coating layer (,) and having a diameter (d), to have a coil pitch diameter (mean diameter) (D). The sheath (,) is made of an electrical insulating material. An outer diameter G of the lead body (,) is set to 2 mm or less. The sheath (,) is formed of a soft material having a Shore hardness of 80A or less. The conductive coil (,) is set to have a spring index (D/d) of 7.8 or more.

Implantable electrode lead

A stereoscopic image display apparatus including a liquid crystal display of light transmission type for displaying right-eye and left-eye target images, a pair of CRTs for displaying illuminating graphic patterns for illuminating the display from the back surface, and a Fresnel lens 11 arranged before the CRTs to show the viewer given displayed portions on the display screens of these CRTs in an enlarged scale. A first graphic pattern polarized in the X direction is displayed at a first position, which corresponds to the right eye of the viewer, on the display screen of the first CRT. A second graphic pattern polarized in the Y direction perpendicular to the X direction is displayed at a second position, which corresponds to the left eye of the viewer, on the second CRT. The display screen of the liquid crystal display is illuminated from the behind by the light from the first and second graphic patterns displayed on the CRTs, respectively. The liquid crystal display displays the right-eye target image and the left-eye target image such that the polarizing directions of the right- and left-eye target images agree with the polarizing directions of the first and second graphic patterns, respectively.

Image display apparatus

A stereoscopic-image game playing apparatus displays a screen image for right eye and a screen image for left eye on LCD 105, outputs images of the player obtained by cameras 103a and 103b to the receiving side, and displays images corresponding to the right half face and the left half face of the player based on the player's images on LCD 107. The images displayed on the LCD 107 are used as figures for selectively introducing lights from the screen images on the LCD 105, by lens 106, to the right and left eyes of the player. This enables stereoscopic vision without glasses for separating images respectively for the player's right and left eyes, and allows the player to move from the initial position.

Stereoscopic-image game playing apparatus

A stereoscopic image communication apparatus displays a screen image for right eye and a screen image for left eye on LCD 105, outputs images of the viewer obtained by cameras 103 to the receiving side, and displays images corresponding to the right half face and the left half face of the viewer based on the viewer's images on LCD 107. The images displayed on the LCD 107 are used as figures for selectively introducing lights from the screen images on the LCD 105, by lens 106, to the right and left eyes of the viewer. This enables stereoscopic vision without glasses for separating images respectively for the viewer's right and left eyes, and allows the viewer to move from the initial position.

Image communication apparatus

Screen images for the right eye are displayed upside down on an image display device 10a, and screen images for the left eye are displayed inverted upside down and right-to-left on an image display device 10b. Light of the screen images for the right eye and for the left eye are polarized so that polarization directions of the light for the right eye and for the left eye are perpendicular to each other. Right half images of viewers' faces, picked up by an image sensing device 14, are displayed on liquid crystal display elements 11. The displayed images functions as light transmission images, and by observing them through a lens 11 having directivity characteristics, the screen images for the right eye and screen images for the left eye of images combined by a half mirror 15 are respectively seen by the right and the left eyes of the viewers.

An accessory pathway detecting apparatus measures action potentials from first and second electrode leads, and outputs the obtained action potentials, as potential maps, to a CRT or a printer such that the action potentials can be displayed in the form of a list. An ablation catheter is inserted and located at a preexcitation portion obtained from the display, and the impedance between each of the electrodes of the first and second electrode leads and the electrode of the ablation catheter is measured by an impedance measuring circuit. A point where the lowest impedance is measured is regarded as an accessory pathway portion. The ablation catheter is fixed at this point.

Accessory pathway detecting/cauterizing apparatus

Screen images for the right eye and for the left eye are displayed upside down on the image display devices 10a and 10b, respectively, and images of right half and left half faces of the viewers picked-up by image sensing devices 14a and 14b are displayed on the spatial modulation elements 11a and 11b. By seeing the screen images transmitted through the images of the right half and the left half faces, which are light transmission images, on the spatial modulation elements 11a and 11b, and through lenses 11a and 11b, having directivities, the right eyes and the left eyes of the viewers can respectively see the screen images for the right eyes and for the left eyes, which are combined by a half mirror 15.

A multielectrode probe of this invention is inserted into a patient when in use. This probe includes a base on which a plurality of signal lines are bonded. Each of the plurality of signal lines has at least one electrode, and these electrodes are arranged on the base with predetermined spacings between them. The electrodes are formed by stripping the isolating coatings of the plurality of signal lines.

Growing community of inventors

Nakai-machi, Japan

Kunimasa Katayama