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AssigneeOlympus Medical Systems Corp.
InventorsKazuki Honda, Kazushi Murakami, Hiroaki Ichikawa, Takehiro Nishiie, Yasuhito Kura, Yoshio Onuki, Takaaki Komiya
Estimating the term…
According to the present invention, there is provided an endoscope system including: an endoscope having an elongated insertion portion; a medical instrument configured to be inserted in a channel of the insertion portion of the endoscope and to have an elongated flexible sheath; and an advancing and retracting apparatus configured to advance and retract the sheath of the medical instrument in the channel with two rollers, wherein the sheath of the medical instrument is configured to have an outer diameter larger than the distance between the roller surfaces of the two rollers, and to have a frictional resistance increasing unit for increasing frictional resistance between the respective roller surfaces and the outer peripheral surface of the sheath in contact with the respective roller surfaces in a state where the sheath is inserted between the two rollers.
An endoscope system comprising:
A medical instrument which is inserted into a channel of an insertion portion of an endoscope and which is advanced and retracted in the channel by an advancing and retracting apparatus having two rollers, the medical instrument comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Characterised by internal passages or accessories therefor: for receiving instruments
Constructional details of the endoscope body: insertion part of the endoscope body
Accessories for endoscopes: drive units for endoscopic tools inserted through or with the endoscope
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g.…:…
About 1 year of term left · ends 13 Oct 2027 (estimated)
1. Field of the Invention
The present invention relates to a medical instrument used together with an endoscope and to an endoscope system which facilitates various operations of the medical equipment or functional operations of the endoscope.
2. Description of the Related Art
FIG. 1 is a view showing an entire configuration of an endoscope system according to a first embodiment;
FIG. 2 is a view showing an operation instruction apparatus of the endoscope system, according to the first embodiment;
FIG. 3 is a plan view when the operation instruction apparatus is seen from the side, according to the first embodiment;
In the following, embodiments of an endoscope system and a medical instrument according to the present invention will be described with reference to the accompanying drawings.
First, a first embodiment according to the present invention will be described with reference to FIG. 1 to FIG. 20. Note that FIG. 1 to FIG. 20 relate to the first embodiment according to the present invention. FIG. 1 is a view showing an entire configuration of an endoscope system. FIG. 2 is a view showing an operation instruction apparatus. FIG. 3 is a plan view when the operation instruction apparatus is seen from the side. FIG. 4 is a longitudinal sectional view showing an internal configuration of a motor-driven treatment instrument advance/retract apparatus. FIG. 5 is a lateral sectional view showing the internal configuration of the motor-driven treatment instrument advance/retract apparatus. FIG. 6 is a plan view when a motor-driven treatment instrument open/close apparatus is seen from the above. FIG. 7 is a plan view when the motor-driven treatment instrument open/close apparatus is seen from the side. FIG. 8 is a view showing an entire configuration of a treatment instrument. FIG. 9 is a view showing a state where the operation instruction apparatus is mounted to an insertion portion of an endoscope. FIG. 10 to FIG. 12 are views for explaining examples of operation of the treatment instrument by the operation instruction apparatus. FIG. 13 is a perspective view showing, partially in cross section, a treatment instrument sheath. FIG. 14 is a perspective view showing the sheath in a state where the sheath is inserted between rollers. FIG. 15 is a sectional view showing the sheath in the state where the sheath is inserted between the rollers. FIG. 16 is a perspective view showing, partially in cross section, a treatment instrument sheath of a first modification. FIG. 17 is a sectional view showing the sheath of the first modification in a state where the sheath is inserted between the rollers. FIG. 18 is a perspective view showing a second modification and showing, partially in cross section, a treatment instrument sheath having a first index portion. FIG. 19 is a perspective view showing a third modification and showing, partially in cross section, a treatment instrument sheath having a second index portion. FIG. 20 is a perspective view showing a fourth modification and showing, partially in cross section, a treatment instrument sheath having a third index portion.
As shown in FIG. 1, an endoscope system 1 according to the present embodiment includes an endoscope 10, a control apparatus 20 serving as a light source apparatus and a video processor, a motor-driven treatment instrument open/close apparatus 30, a motor-driven treatment instrument advance/retract apparatus 40, and an operation instruction apparatus 45. Note that in the present embodiment, an endoscope operation assisting apparatus according to the present invention is configured by the control apparatus 20, the motor-driven treatment instrument open/close apparatus 30, the motor-driven treatment instrument advance/retract apparatus 40, and the operation instruction apparatus 45. Note that although not shown, display means, such as a monitor for displaying an endoscopic image, is connected to the control apparatus 20.