摘要:
A suture instrument that is inserted into a body and ejects an elongated anchor to which a suture thread that sutures a perforation is connected and which is placed on tissue, including a base that extends from a proximal end on a hand side to a remote end that is introduced to tissue and has flexibility; an anchor holding instrument that is disposed at the remote end of the base, is capable of housing a plurality of the anchors inside, and whose distal end that ejects the anchors is approximately pointed in the direction of the proximal end of the base; a tip position changing mechanism that is provided for changing the tip position of the anchor holding instrument and causes the anchor holding instrument to move in a direction that intersects with the axial line of the lengthwise direction of the base; and a position operation device that operates the tip position changing mechanism at the hand side and operates the tip position of the anchor holding instrument.
摘要:
A suture instrument that is inserted into a body and ejects an elongated anchor to be engaged to tissue, consisting of: an elongated member that extends from a proximal end on a hand side to a remote end that is introduced to tissue and has flexibility; a needle that is provided at the remote end of the elongated member, has at the distal end a sharp tip that is capable of puncturing tissue, is capable of housing a plurality of the anchors inside, and is provided with a side hole through which the anchors are capable of passing; a pusher whose remote end abuts the anchor that is housed in the needle and is disposed in a manner to be capable of moving in the axial direction of the elongated member; and a push-out control portion that is provided in the needle or the pusher and changes the movement direction of the anchor that has been moved to a formation position of the side hole by the pusher from the length-wise direction of the needle to a direction heading toward the side hole.
摘要:
An ultrasonic endoscope includes an insertion section, an operation section, an optical observation system, and an ultrasonic observation system. The optical observation system is disposed in the insertable section, and has an objective lens located on a face of a distal end of the insertion section. The ultrasonic observing system is disposed in the insertion section, and has an ultrasonic transducer disposed on the face of the distal end of the insertion section or further forward than the distal end.
摘要:
A suture device which sutures tissue using a suture unit having a first anchor and a second anchor respectively attached to both ends of a suture thread, wherein a hollow distal member is provided which houses said first anchor and second anchor, the end face of the distal side of said distal member is formed so as to constitute a first sharp angle with the axis of said distal member, the distal side of said second anchor is provided with a sloped face so as to constitute a second sharp angle with the axis of said second anchor which is an angle at or below said first sharp angle, and said first anchor and said second anchor are axially aligned and housed inside said distal member so that said second anchor is positioned on the proximal side.
摘要:
An endoscope treatment instrument having a needle for puncturing a biological tissue in a body cavity includes an indicator region provided on the outer surface of the needle including an indicator shape having miniature concave portions, and a plain region without the indicator shape provided in connection with at least one side of the indicator region in the axial line direction of the needle.
摘要:
A suturing device is disclosed which sutures a tissue using a suture unit having a suture thread with both ends fitted to a first anchor and a second anchor, respectively. The suturing device includes a hollow tip member receiving the first and second anchors; a wire having a front end inserted through the tip member so that the first and second anchors can be released out from the tip member; a flexible tube having a distal end integrally connected at a proximal end of the tip member, through which the wire is inserted so as to freely move forward and backward in the axial direction of the tube; a parallel member inserted through the tube so as to freely move forward and backward in the axial direction of the tube along with the wire; a relative position holding member fitted to the wire so as to hold constant a relative positional relationship between the wire and the parallel member; a forward movement restricting member provided on the tube or the tip member so as to restrict a forward movement of the parallel member; and an operating portion provided at a proximal end side of the wire and the parallel member so as to operate the wire and the parallel member. In a state in which the relative positional relationship between the wire and the parallel member is held constant by the relative position holding member, when the wire is moved in the forward direction until the forward movement of the parallel member is restricted by the forward movement restricting member, only the first anchor is released out from the tip member by the movement of the wire.