JP4589744B2 - Endoscope operation unit - Google Patents

Description

  The present invention relates to an operation unit of an endoscope.

  An operator who uses an endoscope operates various operation members arranged in the operation unit while holding the operation unit of the endoscope by hand, but the shape and size of the operator's hand is The operation unit is not easy to use depending on the person.

Therefore, by attaching an operation unit holding auxiliary tool that can be selected according to the shape and size of the operator's hand using an endoscope to the operation unit, many people have installed an operation unit that has been issued only by the manufacturer. Can be used without a sense of incongruity (for example, Patent Document 1).
Japanese Utility Model Sho 63-127601

  In general, an operation valve in which a piston body that is movable back and forth within a cylinder body is detachably attached to the cylinder body is disposed in an operation portion of the endoscope. At the end of the endoscopic examination, it is necessary to remove the piston body and clean and disinfect the cylinder body. At the same time, it is necessary to remove the operation unit holding auxiliary tool from the operation unit and clean and disinfect each.

  Then, since the operation part holding auxiliary tool described in Patent Document 1 is attached to the operation part of the endoscope by elastically deforming a tongue piece protruding from itself, separately from the piston body There is a case where the piston body or the operation unit holding auxiliary tool is removed and damaged during handling to be removed from the operation unit.

  In addition, after the endoscope has been cleaned and disinfected, it is necessary to perform the operation of attaching the piston body and the operation unit holding auxiliary tool individually to the operation unit. In some cases, the piston body or the operation unit holding auxiliary tool that has been cleaned and disinfected is removed and damaged or soiled.

  Then, this invention aims at providing the operation part of the endoscope which can be easily attached or detached to an operation part, without removing the piston body removed from an operation valve, and the operation part holding | maintenance auxiliary tool. .

  In order to achieve the above object, the operation portion of the endoscope according to the present invention includes an operation valve in which a piston body that is movable forward and backward in the cylinder body is detachably attached to the cylinder body, and an operator holding the operation portion. In the operation part of the endoscope provided with the operation part holding auxiliary tool attached to the operation part according to the shape of the hand, the piston body is attached to the operation part to restrict the piston body from coming out of the cylinder body. The piston body mounting member and the operation part holding auxiliary tool are integrally formed, and the piston body mounting member is removed from the operation part, and the piston body is removed from the cylinder body so that the operation part holding auxiliary tool is integrated with the operation part holding tool. It is intended to deviate from.

Note that the operation unit holding auxiliary tool may constitute a unit together with the piston body and the operation button attached to the protruding end.
In addition, the suction operation valve and the air / water supply operation valve are arranged side by side as the operation valve, and the suction operation valve and the air / water supply operation valve are formed by the piston body mounting member formed integrally with the operation unit holding auxiliary tool. The piston body may be restricted from coming out of the cylinder body. In this case, the operation part holding auxiliary tool, the piston body of the suction operation valve, and the piston body of the air / water supply operation valve are integrated. It is good to be attached to and detached from the operation unit.

  According to the present invention, the piston body mounting member attached to the operating portion is removed from the operating portion in order to restrict the piston body from coming out of the cylinder body, and the piston body is pulled out from the cylinder body. Since the holding auxiliary tool is detached from the operation portion, it can be easily attached to and detached from the operation portion without removing the piston body and the operation portion holding auxiliary tool.

  An operation valve in which a piston body that is movable back and forth within the cylinder body is configured to be detachable from the cylinder body, and an operation part holding auxiliary tool that is attached to the operation part according to the shape of the operator's hand holding the operation part, In the operation portion of the endoscope provided with the piston body mounting member attached to the operation portion and the operation portion holding auxiliary tool are integrally formed to restrict the piston body from coming out of the cylinder body, By removing the piston body mounting member from the operation portion and pulling out the piston body from the cylinder body, the operation portion holding auxiliary tool is detached from the operation portion.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 2 is an external view of the endoscope. A flexible insertion portion 2 is connected to the lower end of the operation portion 1, and a connector portion 4 connected to a light source device (not shown) is provided from the rear surface of the operation portion 1. It is attached to the tip of the extended connecting flexible tube 3.

  The lower half of the operation unit 1 is a grip for an operator who holds the operation unit 1 to hold it with the left hand. The suction operation valve 10 and the air supply are provided on the front surface of the upper half of the operation unit 1. The water supply operation valves 20 are arranged in parallel, and the suction operation button 13 and the air / water supply operation button 23 are arranged so as to protrude forward therefrom.

  Further, on the side surface of the upper half of the operation unit 1, an operation unit holding auxiliary tool 50 prepared according to the shape or the like of the operator's hand holding the operation unit 1 (that is, the shape and size of the hand). Is disposed along the side wall of the operation unit 1.

  FIG. 3 is a piping diagram of an endoscope, and a suction operation valve 10 is inserted and connected in the middle of a suction tube 5 drawn from the connecting flexible tube 3 into the insertion portion 2 through the operation portion 1. The air / water supply operation valve 20 is inserted in the middle of each of the air supply pipe 6 and the water supply pipe 7.

  As shown in FIG. 4 which is a side view of the operation unit 1, the suction operation valve 10 and the air / water supply operation valve 20 are each a cylinder body 11 fixed to the operation unit 1 so as to open forward. 21 and piston bodies 12 and 22 disposed in the cylinder bodies 11 and 21 so as to be movable back and forth in the axial direction.

  Then, by pushing the operation buttons 13 and 23 connected to the tip ends of the piston bodies 12 and 22 so as to protrude forward, the respective communication and blockage of the suction pipe 5, the air supply pipe 6 and the water supply pipe 7 are blocked. A suction operation and an air / water supply operation for switching states can be performed.

  The structures of the suction operation valve 10 and the air / water supply operation valve 20 are publicly known, and the piston bodies 12 and 22 are cylinder bodies by piston body mounting members 52 that are detachable from the openings of the cylinder bodies 11 and 21. The piston bodies 12 and 22 can be extracted from the cylinder bodies 11 and 21 by removing the piston body mounting member 52 from the mouth portions of the cylinder bodies 11 and 21.

  5, 6, and 7 are a side view, a front view, and a bottom view of the operation unit holding auxiliary tool 50 attached to the operation unit 1, and FIG. 1 illustrates the operation unit holding auxiliary tool 50 operated. The state removed from the part 1 is shown.

  The operation unit holding auxiliary tool 50 of this embodiment is arranged along the left side surface of the upper half of the operation unit 1, and the piston body mounting member 52 is continuously and integrally formed on the front end side thereof. For example, it can be easily manufactured integrally by plastic molding.

  FIG. 8 shows a state where the operator holds the operation unit 1 with the operation unit holding auxiliary tool 50 attached thereto, and the operation unit holding auxiliary tool 50 holds the lower half of the operation unit 1. It will be put on the hand you hold. The operator can easily hold the operation unit 1 by employing the operation unit holding auxiliary tool 50 that matches the shape of his / her hand.

  As shown in FIG. 9, the piston body mounting member 52 formed integrally with the operation unit holding auxiliary tool 50 is screwed and connected to the projecting ends of the suction operation piston body 12 and the air / water supply operation piston body 22. The operation buttons 13 and 23 are assembled in a state where they are pressed against the step surfaces of the piston bodies 12 and 22 by springs 14 and 24 for urging the operation buttons 13 and 23 in the direction of jumping out from the cylinder bodies 11 and 21. The auxiliary tool 50 constitutes one unit as shown in FIG. 1 together with the piston bodies 12 and 22 and the operation buttons 13 and 23 and the springs 14 and 24 screwed to the projecting ends thereof. Yes.

  Further, the hook-shaped portions 52 a and 52 b formed in an annular shape on the back surface portion of the piston body mounting member 52 are elastically deformed by applying a force that is larger than a certain level, and the cylinder bodies 11 and 21 are fixed to the operation unit 1. The fixing nuts 15 and 25 can be engaged with and disengaged from the hook-like portions at the mouths.

  With such a configuration, the hook-like portions 52 a and 52 b of the piston body mounting member 52 formed integrally with the operation unit holding auxiliary tool 50 are locked to the fixing nuts 15 and 25 and attached to the operation unit 1. As a result, the piston bodies 12 and 22 are held in a state in which they do not come out of the cylinder bodies 11 and 21, and at the same time, the operation unit holding auxiliary tool 50 is fixed to the operation unit 1 in a stable state.

  Then, if the hook-shaped parts 52a and 52b of the piston body mounting member 52 are elastically deformed and removed from the fixing nuts 15 and 25, and the piston bodies 12 and 22 are extracted from the cylinder bodies 11 and 21, as shown in FIG. Only the cylinder bodies 11 and 21 remain in the operation unit 1, and the two piston bodies 12 and 22 and the operation unit holding auxiliary tool 50 are integrally removed from the operation unit 1.

  Therefore, the two piston bodies 12 and 22 and the operation unit holding auxiliary tool 50 can be easily attached to and detached from the operation unit 1 without being handled integrally and removed.

It is a perspective view in the state where the auxiliary tool for operation part maintenance of the example of the present invention was removed from the operation part integrally with the piston body. It is a side view which shows the external appearance of the endoscope of the Example of this invention. It is a piping diagram of the endoscope of the example of the present invention. It is a side view of the operation part of the endoscope of the Example of this invention. It is a side view of the operation part of the endoscope of the Example of this invention. It is a front view of the operation part of the endoscope of the Example of this invention. It is a bottom view of the operation part of the endoscope of the Example of this invention. It is a side view in the state where the operator held the operation part of the endoscope of the example of the present invention. It is the partial expanded side surface sectional view of the part by which the operation tool holding | maintenance tool of the Example of this invention was attached to the operation part. It is the partial expanded side sectional view of the operation part in the state where the auxiliary tool for operation part holding of the example of the present invention was removed.

Explanation of symbols

1 Operation part 10 Suction operation valve (operation valve)
20 Air / water control valve (control valve)
11, 21 Cylinder body 12, 22 Piston body 13, 23 Operation button 14, 24 Spring 50 Operation part holding auxiliary tool 52 Piston body mounting member

Claims (4)

An operation valve in which a piston body which can be moved forward and backward in the cylinder body is configured to be detachable from the cylinder body, and an operation part holding auxiliary which is attached to the operation part according to the shape of an operator's hand holding the operation part In the operation part of the endoscope provided with tools,
In order to restrict the piston body from coming out of the cylinder body, a piston body attachment member attached to the operation part and the operation part holding auxiliary tool are integrally formed, and the piston body attachment member is operated as described above. By removing the piston body from the cylinder body and pulling out the piston body from the cylinder body, the operating part holding auxiliary tool is detached from the operating part, and the piston body mounting member integrated with the operating part holding auxiliary tool is attached to the piston body mounting member. An operation portion of an endoscope, wherein a state in which a piston body is engaged is maintained .   The operation part of the endoscope according to claim 1, wherein the operation part holding auxiliary tool constitutes a unit together with the piston body and an operation button attached to a protruding end thereof.   A suction operation valve and an air / water supply operation valve are arranged side by side as the operation valve, and the piston body mounting member formed integrally with the operation part holding auxiliary tool causes the suction operation valve and the air / air supply The operation part of the endoscope according to claim 1 or 2, wherein the piston body of the water supply operation valve is restricted from coming out of each cylinder body.   The operation of the endoscope according to claim 3, wherein the operation part holding auxiliary tool, the piston body of the suction operation valve, and the piston body of the air / water supply operation valve are integrally attached to and detached from the operation part. Department.

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