JPH0235282Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention allows the direction of a tube for forming a forceps insertion port to be changed as necessary in an endoscope used for observation, diagnosis, treatment, etc. inside a body cavity. This article concerns an improved endoscope.

[Conventional technology, problems]

In conventional endoscopes, the direction of the forceps insertion port forming tube is fixed and directed only toward the right side of the operator. This allows a right-handed operator to hold the hand control unit main body with his left hand, and use his left hand to operate the control lever.
Alternatively, the operation knob is designed to be swung or rotated to perform a bending operation, while the right hand is used to perform biopsy operations using forceps, etc. In this case, right-handed operation is required. For left-handed operators, it is extremely easy to perform biopsy operations with the right hand, but for left-handed operators, they must perform operations with their wrists bent unnaturally, making delicate operations difficult and causing fatigue. Not only is this likely to occur, but the operator's left hand has a negative effect on the eyepiece, so
There was a serious practical drawback in that it was essentially difficult to perform the biopsy operation while observing the affected area.

[Means and actions for solving problems]

In view of the current situation, the present invention has been developed to provide a forceps insertion port that is attached to an opening of a forceps channel opened in the hand control section body of an endoscope so that endoscope forceps can be operated with either the left hand or the right hand. The forming tube is bent into a substantially dogleg shape, and its base is rotatably attached to the opening of the forceps channel opened in the main body of the hand operation section, and the opening that becomes the forceps insertion port of the forceps insertion port forming tube is formed. By making the position movable, the direction of the forceps insertion port forming tube can be changed to facilitate delicate operations depending on whether the operator is right-handed or left-handed. This makes it possible to perform accurate treatment by preventing interference with observation by the hands performing the biopsy operation.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

First, FIGS. 1 and 2 show various aspects of the present invention in use when viewed from the eyepiece side. In these figures, 1 is the main body of the hand operation section of the endoscope. , an observation eyepiece 2, a tube 3 for forming a forceps insertion port, an operating rod 4, etc., as well as a flexible tube base, an air intake, a water intake, a light guide connection, etc. are provided. Therefore, the position of the opening 5 of the forceps insertion opening forming tube 3 is movable, and as shown in FIG. The opening 5 of the forceps insertion port forming tube 3 is oriented to the left when viewed along the axial direction.
When the position of the left-handed operator is displaced, the left-handed operator operates the operating rod 4 with his right finger while holding the hand-operated main body 1 with his right hand, performs a bending operation of the curved tube section (not shown), and also holds the forceps with his left hand. 6 can be easily performed, and as shown in FIG. When the position of the opening 5 of the forceps insertion port forming tube 3 is displaced, the right-handed operator operates the operating rod 4 with his left finger while holding the manual operating section main body 1 with his left hand, and presses the operating lever 4 (not shown) with his left finger. The bending operation of the curved tube section can be performed, and the forceps 6 can be easily operated with the right hand. In this way, the direction of the forceps insertion port forming tube 3 can be changed as appropriate depending on whether the operator is right-handed or left-handed, without unnaturally bending the wrist of the dominant arm. Since it is possible to maintain the device in a state that is most convenient for operation, and because observation is not obstructed by the operation of the forceps, biopsy operations that require delicate operations can be performed quickly and accurately.

Next, in FIGS. 3 and 4 showing one of the specific configurations of the endoscope as described above, the forceps channel opened in the hand operating section main body 1 is stepped with a slightly larger diameter. A stepped base 8 of the forceps insertion port forming tube 3 bent into a substantially dogleg shape is attached to the opening 7 with a stopper 9 so as not to be able to escape, and the stepped base 8 is fitted into a groove 10 recessed in its outer periphery. The O-ring 12 allows rotation and prevention of rotation within the stepped opening 7.

In this way, the direction of the forceps insertion port forming tube 3, which is bent into a substantially doglegged shape, can be rotated to change the direction depending on whether the operator is right-handed or left-handed. The suction tube 11 is connected to a suction device for aspirating gastric juice, etc., and is configured to be able to rotate in any direction, so that it is difficult to change the direction of the forceps insertion port forming tube 3. can always be oriented in a fixed direction.

In FIGS. 3 and 4, the forceps insertion port forming tube 3 has a curved shape over almost the entire length, but the position of the forceps insertion port forming tube 3 can be changed by rotation. It may have any shape as long as it has one.

[Effect of idea]

As is clear from the above explanation, the endoscope according to the present invention can be operated with either the left or right hand.
The position of the forceps insertion opening on the opposite side of the forceps insertion opening forming tube from the attachment part side can be changed, so it can be adjusted arbitrarily depending on whether the operator is right-handed or left-handed. By changing the direction of the tube for forming the forceps insertion port, the dominant arm is not unnaturally bent, making it the easiest to operate, making it possible to perform biopsy operations that require delicate operations quickly and accurately. It has excellent practical utility in that it can ease the patient's pain.

[Brief explanation of the drawing]

The drawings show an embodiment of the endoscope according to the present invention, in which FIG. 1 is a front view showing how it is used by a left-handed operator, and FIG. 2 is a front view showing how it is used by a right-handed operator. Front view showing aspects, FIGS. 3 and 4
The figure is a perspective view and a sectional view of the main part. Note that the same reference numerals in the figures indicate the same or equivalent components. 1...Hand control unit main body, 2...Observation eyepiece,
3... Forceps insertion port forming tube, 4... Operating rod, 5...
...opening, 6...forceps, 7...stepped opening, 8...
...Stepped base, 9...Stopper, 10...Groove, 1
1...Suction tube, 12...O ring.

Claims (1)

[Scope of utility model registration request] A tube for forming a forceps insertion port is bent into a substantially dogleg shape to be attached to the opening of a forceps channel opened in the hand operation part body of an endoscope so that the endoscope forceps can be operated with either the left or right hand. The base of the forceps channel is rotatably attached to the opening of the forceps channel opened in the main body of the hand operation part, and the position of the opening of the forceps insertion port forming tube that becomes the forceps insertion port can be changed. An endoscope that allows forceps to be inserted from different directions.