A surgical instrument including: a main body; an elongated shaft tube connected to the main body, the shaft tube having at least one working channel tube arranged in an interior of the shaft tube, the at least one working channel tube extending in a longitudinal direction of the shaft tube; and a connection body coupled to a proximal end region of the main body; wherein a proximal end region of the at least one working channel tube is accommodated inside the connection body and is sealed with respect to the connection body.

An endoscope having a multiple diameter working section is disclosed. The endoscope includes a housing, a working section, and a rod-lens optical system. The housing is at a proximal end of the endoscope. The working section is integral with and extends from the housing. The working section includes at least a first section and a second section. The first section is contiguous to the housing, and the second section is at a distal end of the endoscope. The rod-lens optical system is positioned at least partially in the first section of the working section and at least partially in the second section of the working section. The endoscope is defined such that the outer diameter of the first section is larger than the outer diameter of the second section.

Provided are an adhesive for an endoscope, a cured product thereof, an endoscope including a member secured with the cured product, and a method for manufacturing the endoscope. The adhesive includes the following (a) to (c): (a) an epoxy resin including at least one of a bisphenol A epoxy resin, a bisphenol F epoxy resin, or a phenol novolac epoxy resin; (b) a polyamine compound having an oxygen atom but no amide bond in a molecule thereof; and (c) at least one of an inorganic filler, an amide compound, a fatty acid wax, or a sorbitol compound.

Provided are an adhesive for an endoscope, a cured product thereof, an endoscope including a member secured with the cured product, and a method for manufacturing the endoscope. The adhesive includes the following (a) to (c): (a) an epoxy resin including at least one of a bisphenol A epoxy resin, a bisphenol F epoxy resin, or a phenol novolac epoxy resin; (b) a polyamine compound having an oxygen atom but no amide bond in a molecule thereof; and (c) a metal alkoxide compound.

A laryngoscope may include a handle and a blade. The handle and blade may be a single piece and the handle may include undulating contours configured to ergonomically fit the user's hand. The blade may have a first end proximate the handle and a second end oppositely disposed from the first end. The blade end may include an anatomically contoured or undulating profile at the second end configured to correspond with an associate epiglottis and tongue of a patient. The laryngoscope may be disposable and configured for a single use. The blade may have an unilluminated state and an illuminated state.

An endoscopy system including a flexible insertion tube, a motion sensing device and a processor is provided. The flexible insertion tube has a central axis. The motion sensing device includes a housing, a plurality of patterns and a plurality of sensors. The patterns are disposed at a surface of the flexible insertion tube according to an axial orientation distribution and an angle distribution based on the central axis. During the relative motion of the flexible insertion tube between the motion sensing device via a guiding hole, the sensors sense a motion state of the patterns so as to obtain a motion-state sensing result. The processor determines an insertion depth information and an insertion tube rotating angle information based on the motion-state sensing result, the axial orientation distribution and the angle distribution. A method of reconstructing a three-dimensional structure is also provided.

In one aspect, the present invention is an articulation joint for use in a low cost medical device such as an endoscope intended for a single use. In one embodiment, the articulation joint comprises a plurality of interconnected segments. In another embodiment, the articulation joint comprises an elongated tubular body. In another aspect, the present invention provides methods of manufacturing an articulation joint for use in a medical device.

An ultrasound endoscope includes an insertion tube configured to be inserted into a subject, the insertion tube including a transducer that includes a plurality of piezoelectric devices that are aligned along a circumferential direction about a center axis of the insertion tube, an observation optical portion configured to capture a subject image, a first built-in material that is different from the observation optical portion, and a support configured to support the observation optical portion and the first built-in material, the transducer including a through hole configured to pierce through along the center axis to insert the support, and the support including a first groove that extends along the center axis, the first groove being configured to support the observation optical portion, and a second groove that extends along the center axis, the second groove being configured to support the first built-in material and communicate with the first groove.

An endoscope includes: an internal conductor that is formed of a conductive material; an external conductor that is electrically insulated from the internal conductor and is formed of a conductive material that configures a part of an exterior; a holder that holds a first conductor that is electrically connected to the internal conductor and a second conductor that is electrically connected to the external conductor such that the first conductor and the second conductor are separated from each other by a space with a predetermined spatial distance; and a water-tightness holding member that holds water-tightness in the space.

The invention relates to an endoscope shaft 1 having a layered structure. In this shaft 1, formed as a curved or non-curved hollow cylinder, various layers succeed and enclose one another radially over the entire length or a substantial part of the length of the shaft. The shaft has an inner layer 2 of plastic, and an outer layer 3 of plastic enclosing the inner layer 2, and a structuring layer 4 in the transition region 5 of the inner layer and the outer layer 3. The plastics of the inner layer and of the outer layer 3 are different, and the inner layer and the outer layer 3 mesh together in the transition region 5. Thus, the inner layer and the outer layer 3 can connect to each other particularly well, and a delamination of the inner layer and of the outer layer 3 can thus be prevented. This is specifically because the interface between the inner layer and the outer layer 3 is enlarged, in relation to the prior art, by the mutual meshing 6. Moreover, the geometry of the mutual meshing creates a particularly stable and durable mechanical connection between the layers 2, 3 and 4, which allows forces to be transmitted from one of the layers 2, 3, 4 to another in a particularly reliable and permanent manner, as a result of which undesired delamination is prevented, in particular in flexible endoscope shafts 1. The invention further relates to a method for producing such an endoscope shaft 1 according to the invention.