A medical tool includes: a tool main unit configured to be driven in response to a power supply; a first power supply configured to be removable from the tool main unit; and a second power supply having a smaller power capacity than the first power supply, and configured to be charged by the first power supply. The tool main unit is configured to be driven by receiving power supply from one of the first power supply and the second power supply.

An intraoral scanner comprises a light source for generating light, an optics system for focusing the light, and a light-guiding part having an entrance and an exit. The light source, the optics system and the light-guiding part are arranged such that the light passes through the optics system, enters the light-guiding part via the entrance, and exits the light-guiding part via the exit. The optics system is configured such that, upon entering the light-guiding part, an outermost chief ray of the light with respect to an optical axis of the optics system is divergent to the optical axis and an outermost marginal ray of the light with respect to the optical axis is parallel or divergent to the optical axis.

Improved fluoresced imaging (FI) endoscope devices and systems are provided to enhance use of endoscopes with FI and visible light capabilities. An endoscope device is provided for endoscopy imaging in a white light and a fluoresced light mode. A relay system includes an opposing pair of rod lens assemblies positioned symmetrically with respect to a central airspace. The rod lens assemblies include a meniscus lens positioned immediately adjacent to a central airspace and with the convex surface facing the airspace, a first lens having positive power with a convex face positioned adjacent to the inner face of the meniscus lens, a rod lens adjacent to the first lens having positive power and an outer optical manipulating structure selected from various designs providing chromatic aberration correction.

A wire fixation mechanism (78) includes a wire catch (100), a catch guide (102), and a sliding lever (80), a wire (38) includes a locking target portion (39) at a proximal end thereof, and the wire catch (100) includes a locking hole (137) into which the locking target portion (39) is insertable and at which the locking target portion (39) is lockable and a fixing member (106) that fixes a locked state between the locking target portion (39) and the locking hole (137).

A light guide unit includes a light guide member and a protection member surrounding the light guide member. The light guide member includes an optical fiber having an outer diameter. The protection member is formed in a network structure by knitting a metal member having a flat cross-sectional shape by bending the metal member in a direction in which the thickness of the metal material is thin, and a gap smaller than the outer diameter is formed along the axial direction.

A surface estimation method includes a region-setting step and an estimation step. In the region-setting step, a reference region that is one of a three-dimensional region and a two-dimensional region is set. The three-dimensional region includes three or more points and is set in a three-dimensional space. The three-dimensional space includes three-dimensional coordinates of three or more points on a subject calculated on the basis of a two-dimensional image of the subject. The three-dimensional coordinates of the three or more points are included in three-dimensional image data. The two-dimensional region includes three or more points and is set in the two-dimensional image. In the estimation step, a reference surface that approximates a surface of the subject is estimated on the basis of three or more points of the three-dimensional image data corresponding to the three or more points included in the reference region.

The invention relates to a medical device (1) for the observation of a partly fluorescent object (2) such as tissue (3) comprising at least one fluorophore (4). The fluorophore (4) absorbs light in at least one spectral excitation waveband (46) and emits fluorescent light in at least one spectral emission waveband (54). In order to be able to observe also non-fluorescent regions in the tissue (3) without complicated filter arrangement, the medical device (1) according to the invention comprises at least one filter system (16, 38) which comprises, in a filter plane (18), comprises a filter area (20) and a transmission window (22). The filter area (20) comprises a band pass filter (24) having at least one passband (44) comprising the at least one excitation waveband. The transmission window has a passband (48) which is wider than the passband (44) of the filter area (20). In particular, a filter layer (64) of the filter area (20) may be missing in the transmission window (20).

An endoscope apparatus has an endoscope and a video processor. The endoscope has a magnet and a coil, the magnet has a voice coil motor configured to be movable with respect to the coil and a Hall device disposed in the vicinity of the coil and configured to detect a magnetic field of the magnet in order to detect a position of the magnet. The video processor includes a position detection circuit configured to detect the position of the magnet from an outputted signal of the Hall device, an arithmetic operation section configured to correct a sensor output signal indicating the position of the magnet detected by the position detection circuit using correction information and output the sensor output signal, and a drive control circuit configured to control a current or a voltage to the coil based on an arithmetic operation result of the arithmetic operation section.

An insertion portion of an endoscope includes a multi-lumen tube including a treatment instrument insertion channel, a first wire insertion hole that is provided parallel to the treatment instrument insertion channel, and a second wire insertion hole; one towing wire including a first portion that is inserted into the first wire insertion hole, a second portion that is inserted into the second wire insertion hole, and a third portion that is drawn out between the first wire insertion hole and the second wire insertion hole, wherein a proximal end portion of the first portion and a proximal end portion of the second portion are connected to a bending operation member; and a third wire insertion hole into which the third portion is inserted and in which the third portion abuts on a part of an inner peripheral surface.

Provided is an endoscope that can easily perform the attachment and detachment work of a proximal end side of a wire without impairing the operability of an operating part. The an endoscope includes an operating part (22) including an erection operating lever (20), an insertion part (24), an elevator (30), a wire (60) that is disposed to be inserted into a wire channel (62) to be movable forward and backward therethrough and is attachably and detachably coupled to the elevator (30) on a distal end side thereof, an opening part (94) that is provided at a proximal end of the wire channel (62) and delivers the proximal end side of the wire (60) to the outside of the operating part (22), a rotating member (96) that is disposed to be exposed to the outside of the operating part (22) and is configured to be rotatable around a rotational axis (96A) having a component in a direction orthogonal to a longitudinal direction of the operating part (22) depending on the operation of the erection operating lever (20), an engaged part (144) that is provided in the rotating member (96), and an engaging part (98) that is provided on the proximal end side of the wire (60) and is engageably and disengageably engageable with the engaged part (144).