J. Morita Manufacturing Corporation

Tetsuzo Ito

Teruji Nakai

Kouji Yasuda

Masakazu Suzuki

Kazunari Matoba

Hideki Yoshikawa

Tomoyuki Sadakane

Mikinori Nishimura

Seiichiro Yamashita

Masaki Odaka

Hiroaki Kusakabe

Kazunori Hamada

A laser irradiation tip has a main body and a tip end portion. The main body is connected with a handpiece and irradiating therapeutic laser with high absorbability in water. The tip end portion being connected with the main body. The main body of the laser irradiation tip has an optical fiber for guiding the therapeutic laser, a water flow path, and an air flow path in a parallel manner. The tip end portion of the laser irradiation tip has a connection portion with the main body, a water guide path communicated with the water flow path of the main body, an air guide path communicated with the air flow path of the main body, a fiber guide portion capable of inserting a tip side portion of the optical fiber, and a mixing chamber of water and air.

Laser irradiation tip, laser irradiation handpiece, laser treatment apparatus, and laser irradiation tip end member

The present invention provides a root canal length measuring apparatus and a root canal treatment apparatus which can acquire a position of a measurement electrode with high reproducibility in the same root canal. The root canal length measuring apparatus includes a measurement electrode which is inserted into a root canal, an oral electrode which is held in an oral cavity, a measuring section which applies an electric measuring signal between the measurement electrode and the oral electrode and specifies an apex position so as to measure a root canal length, a memory means which stores position data corresponding to a position of the measurement electrode in a root canal acquired by the measuring section, and an operating means which instructs the memory means to store the position data.

Root canal length measuring apparatus and root canal therapy apparatus

A medical X-ray CT imaging apparatus, a medical X-ray CT image display device, and a medical X-ray CT image display method which perform CT imaging of living organs symmetrically located with respect to a predetermined plane and display CT images thereof. This is a method of displaying a medical X-ray CT image, where a CT image obtained by X-ray CT imaging, using a cone beam (B), of a first living organ and a second living organ which are symmetrically located with respect to the predetermined plane. In the present invention, the CT image of the first living organ and that of the second living organ are displayed for comparison on one display screen of a display means.

Medical X-ray CT imaging apparatus, medical X-ray CT image display device, and medical X-ray CT image display method

A medical X-ray CT imaging apparatus is capable of performing efficient CT imaging of living organs symmetrically located with respect to a predetermined plane. The medical X-ray CT imaging apparatus comprises an X-ray source (), an X-ray detection means (), a supporting means (), a subject holding means (), a rotation means (), a moving means (), an imaging region specifying means for specifying imaging regions of a first living organ and a second living organ which are symmetrically located with respect to a predetermined plane, a calculation means which uses the moving means () and the rotation means () to automatically and consecutively perform X-ray CT imaging of respective imaging regions of the first living organ and the second living organ, which are specified by the imaging region specifying means, and reconstructs respective CT images of the first living organ and the second living organ on the basis of electrical signals obtained by the X-ray CT imaging, and a display part () for displaying the CT images of the first living organ and the second living organ, which are obtained by the calculation means.

Medical X-ray CT imaging apparatus

An object of the present invention is to provide an image processing method, etc. capable of producing a panorama tomogram with a simple operation whenever required by the operator. The present invention relates to an image processing method for producing a panorama tomogram of the dental arch using the X-ray projection data on the dentomaxillofacial region obtained by the X-ray computer tomography. The image processing method according to the present invention includes the steps of retrieving the dental arch projection data corresponding to the dental arch from the X-ray projection data based on the preset position and shape information to specify the position and shape of the dental arch from the X-ray projection data (S) and generating a panorama tomogram by executing a predetermined process using the dental arch projection data (S).

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Kyoto, Japan

Tetsuzo Ito