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Endoscope system and medical treatment method
| Details |
Inventors: Otawara, Takashi;
Assignee: Olympus Corporation (Tokyo, JP)
Primary Examiner: Flanagan; Beverly M.
Assistant Examiner:
Attorney, Agent or Firm: Scully, Scott, Murphy & Presser
An endoscope system comprises: an endoscope main body having an insertion portion in which a lumen is formed, the insertion portion having a proximal end and a distal end, a distal end opening of the lumen being provided to the distal end of the insertion portion, and a proximal end opening of the lumen being provided to the proximal end of the insertion portion; a first fixing member provided to the distal end of the insertion portion, capable of selecting between a fixed state for fixing the distal end portion of a linear member inserted into the lumen and a released state thereof in the distal end portion of the insertion portion; a second fixing member provided to the proximal end of the insertion portion, capable of selectively fixing the proximal end portion of the linear member inserted into the lumen in the proximal end of the insertion portion; and a tubular member having a proximal end, a distal end, and a lumen running therebetween, and removably inserted into the lumen, wherein a slit is formed from the proximal end of the tubular member towards the distal end thereof. |
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DETAILED DESCRIPTION It is desirable if there were an endoscope system which can facilitate the exchanging of a treatment instrument.
According to a first aspect of the present invention, an endoscope system comprises an endoscope main body, a first fixing member, a second fixing member and a tubular member.
The endoscope main body has an insertion portion in which a lumen is formed and the insertion portion has a proximal end and a distal end.
A distal end opening of the lumen is provided to the distal end of the insertion portion and a proximal end opening of the lumen is provided to the proximal end of the insertion portion.
The first fixing member provided to the distal end of the insertion portion is capable of selecting between a fixed state for fixing the distal end portion of a linear member inserted into the lumen and a released state thereof in the distal end portion of the insertion portion.
The second fixing member provided to the proximal end of the insertion portion is capable of selectively fixing the proximal end portion of the linear member inserted into the lumen in the proximal end of the insertion portion.
And the tubular member has a proximal end, a distal end, and is a lumen running therebetween, and is removably inserted into the lumen.
A slit is formed from the proximal end of the tubular member towards the distal end thereof.
According to a second aspect of the present invention, a medical treatment method comprises the following steps.
The method includes a step for inserting a first treatment instrument into the lumen of the endoscope insertion portion and placing the distal end of the first treatment instrument in the body cavity.
The method further includes a step for placing a guidewire in the lumen of the first treatment instrument, a step for pulling the proximal end portion of the guidewire diametrically from the lumen of the first treatment instrument after the distal end of the guidewire inserted into the first treatment instrument is placed in the body cavity, and a step for fixing the portion of the proximal end of the guidewire pulled from the first treatment instrument at the proximal end of the endoscope lumen, and a step for pulling the first-treatment instrument towards the proximal end of the insertion portion
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