Endoscopic treatment instrument and endoscope system
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A technology of endoscope and instrument, applied in the field of endoscope system
Active Publication Date: 2017-06-06
OLYMPUS CORP
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[0007] In addition, when the bile duct has morphological characteristics, when there is stricture in the surrounding organs such as the duodenum, and when the patient has previously undergone surgery on the surrounding organs such as the duodenum, the duodenal The orientation of the bile duct near the nipple may be different from the 12 o'clock direction of the endoscopic view
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no. 1 Embodiment approach
[0055] Below, refer to Figure 1 to Figure 14 , the first embodiment of the endoscope system of the present invention will be described by taking the case where the endoscope treatment instrument is a nipplelotomy knife as an example.
[0056] like figure 1 As shown, this endoscope system 1 has: a nippletome 2, which has a flexible insertion portion (sheath portion) 10; and an endoscope 3, which is formed with a channel through which the insertion portion 10 can be inserted. 51. That is, the papillotomy knife 2 is used in combination with the endoscope 3 .
[0057] like figure 1 and figure 2 As shown, the nippletome 2 has the above-mentioned insertion part 10, a treatment part 30 provided on the front end side of the insertion part 10, and an operation part 40 provided at the proximal end of the insertion part 10 for operating the treatment part 30. .
[0058] Insert part 10 such as Figure 2 to Figure 4 As shown, there are a sheath main body 11a constituting the proxi...
no. 2 Embodiment approach
[0118] Next, refer to Figure 15 to Figure 26 The second embodiment of the present invention will be described, and the same reference numerals will be assigned to the same parts as those in the above-mentioned embodiment, and the description will be omitted, and only the different points will be described.
[0119] like Figure 15 to Figure 18 As shown, the nippletome 6 of this embodiment has an insertion part 90, a treatment part 110 provided at a position closer to the front end than the insertion part 90, and a treatment part 110 provided at the proximal end of the insertion part 90 for operating the treatment part. 110 of the operating unit 120 .
[0120] In this embodiment, for the insertion part 90 and the treatment part 110, use Figure 19 Multilumen tubing 91 is shown. exist Figure 19 In , the covering pipe 101 in the torque transmission member 95 described later is not shown.
[0121]The outer diameter of the proximal end side of the multi-lumen tube 91 is larg...
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Abstract
An endoscope treatment instrument used in combination with an endoscope having a lifting seat at the front end of the channel has: a sheath part having flexibility; and a treatment part provided on the front end side of the sheath part and an operation part provided at the base end part of the sheath part for operating the treatment part, the sheath part having: a sheath main body formed with a A lumen extending along the axis of the sheath; a clamped part, which is arranged on the front end side of the sheath main body, is clamped between the lifting seat and the lifting seat that is raised when the sheath main body is inserted into the channel between the inner peripheral surfaces of the channel; and a torque transmission member extending from the base end side of the sheath main body to the clamped portion in the axial direction of the sheath portion, transmitting the The input rotational torque causes the sheath body to rotate around the axis, and the outer diameter of the clamped portion is larger than the diameter of the inscribed circle when the lifting seat is fully lifted The largest inscribed circle among the inscribed circles of the part clamping the clamped part on the inner peripheral surface of the lifting seat and the channel.
Description
technical field [0001] The present invention relates to an endoscope treatment instrument used in combination with an endoscope having a lifting base at a distal end portion of a channel, and an endoscope system including the endoscope treatment instrument. [0002] this application claims priority based on Japanese Patent Application No. 2013-135458 for which it applied to Japan on June 27, 2013, and uses the content here. Background technique [0003] When removing bile duct stones endoscopically, the duodenal papilla, which is the outlet of the bile duct, is narrow, so sometimes it is not possible to directly expel the stones. In this case, the papillary sphincter is incised using an endoscopic treatment instrument such as the Papillotome shown in Patent Documents 1 and 2, which passes through the endoscope, and the exit of the bile duct is enlarged to remove the stone. [0004] The position of the surrounding folds (はちまきfold) is approximately the same as the direction i...
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