JP2006167065A - Control section for endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control section for the endoscopes which enables the mounting of an auxiliary device for holding the control section stably despite the repeated loading of the auxiliary device for holding the control section to or its unloading from the control section by eliminating the need of a member specially provided for the fixation of the auxiliary device for holding the control section on the control part. <P>SOLUTION: The auxiliary device 50 for holding the control section to be mounted on the control section 1 according to the shape of the hand of the operator holding the control section 1 is fixed on the control section 1 with piston body retaining members 14 and 24 of the control valves 10 and 20 disposed at the control section 1. The loading or unloading of the auxiliary device 50 for holding the control section is possible on or from the control part 1 by taking off the piston body retaining members 14 and 24. <P>COPYRIGHT: (C)2006,JPO&NCIPI

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 to the operation unit, anyone can use one operation unit without a sense of incongruity (for example, patents) Reference 1).
Japanese Utility Model Sho 63-127601

  However, the operation unit holding auxiliary tool described in Patent Document 1 is adapted to elastically deform the tongue piece protruding from the operation unit and attach it to the operation unit of the endoscope. If the mounting is repeated, the elastically deformed portion may be fatigued or worn and may not be mounted in a stable state. However, if a member for fixing the operation unit holding auxiliary tool to the operation unit is separately provided, the number of parts increases and handling becomes troublesome.

  Therefore, the present invention does not require a special member for fixing the operation unit holding auxiliary tool to the operation unit, and also holds the operation unit even when the operation unit holding auxiliary tool is repeatedly attached to and detached from the operation unit. It is an object of the present invention to provide an operation unit of an endoscope that can be attached to an auxiliary tool in a stable state.

  In order to achieve the above object, the operation part of the endoscope according to the present invention is an operation of an endoscope provided with 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. The operation unit holding auxiliary tool attached to the operation unit according to the shape of the operator's hand holding the operation unit is connected to the operation unit by a piston body locking member for locking the piston body to the cylinder body. By fixing the piston body locking member from the cylinder body, the operation part holding auxiliary tool can be attached to and detached from the operation part.

  Air supply / water supply operation valves and suction operation valves are provided as operation valves, and the operation unit holding auxiliary tool is fixed to the operation unit by a piston body locking member in each of the air supply / water supply operation valve and the suction operation valve. Or at least one of an air supply / water supply operation valve and a suction operation valve is provided in the operation unit, and the operation unit holding auxiliary tool is one piston body of the air supply / water supply operation valve and the suction operation valve. It may be fixed to the operating portion by a locking member.

  In addition, the operation unit holding auxiliary tool may be sandwiched and fixed between the outer wall surface of the operation unit and the piston body locking member, and the piston body locking member is formed of an elastic material. A hook-like portion may be provided, and the piston body locking member may be engaged with and disengaged from the cylinder body by elastically deforming the hook-like portion.

  According to the present invention, the operation unit holding auxiliary tool is fixed to the operation unit by the piston body locking member for locking the piston body of the operation valve arranged in the operation unit to the cylinder body, and the piston body locking By removing the member from the cylinder body, the operation unit holding auxiliary tool can be attached to and detached from the operation unit, so there is no need to provide a special member for fixing the operation unit holding auxiliary tool to the operation unit, and the operation can be performed. Even if the operation unit holding auxiliary tool is repeatedly attached to and detached from the unit, fatigue or wear does not occur in the operation unit holding auxiliary tool itself, and the operation unit holding auxiliary tool can be mounted in a stable state.

  In an operation part of an endoscope provided with an operation valve in which a piston body which can be moved forward and backward in the cylinder body is detachably attached to the cylinder body, an operation part corresponding to the shape of an operator's hand holding the operation part The operation part holding auxiliary tool attached to the cylinder body is fixed to the operation part by a piston body locking member for locking the piston body to the cylinder body, and the operation part holding is performed by removing the piston body locking member from the cylinder body. The auxiliary tool can be attached to and detached from the operation unit.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 3 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 connected 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 holding the operation unit 1 to hold and hold with the left hand. The suction operation valve 10 and the air / water supply operation valve 20 are disposed on the front surface of the upper half. The operation member holding assist is provided in various ways according to the shape of the operator's hand holding the operation unit 1 (that is, the shape and size of the hand) on the side surface of the upper half. The tool 50 can be selected and attached.

  FIG. 4 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. 5, each of the suction operation valve 10 and the air / water supply operation valve 20 is disposed in the cylinder bodies 11 and 21 fixed to the operation unit 1 so as to open forward and the cylinder bodies 11 and 11. 21 has piston bodies 12 and 22 arranged 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 known, and the piston bodies 12 and 22 are piston body locking members 14 and 24 that can be freely attached to and detached 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 locking members 14 and 24.

  FIG. 6 shows the operation unit holding auxiliary tool 50 as a single unit, in front of the front side of the upper half of the operation unit 1 on the front end side of the side protrusion 51 arranged along the side surface of the operation unit 1. The wall 52 is formed integrally, and through holes 53 and 54 are formed so as to be aligned with the openings of the cylinder bodies 11 and 21. The shape of the operation unit holding auxiliary tool 50 is also shown in FIGS. 7, 8, and 9, which are a side view, a front view, and a bottom view of the operation unit holding auxiliary tool 50.

  FIG. 10 shows a state in which the operator holds the operation unit 1 with the operation unit holding auxiliary tool 50 attached, and the hand in which the side protrusion 51 grips the lower half of the operation unit 1. It will be on the top. The surgeon can easily hold the operation unit 1 by selecting the operation unit holding auxiliary tool 50 according to the shape of his / her hand.

  FIG. 1 shows a fixing part of an operation part holding auxiliary tool 50 with respect to the operation part 1, and piston body locking members 14, 24 are plastic materials having elasticity around metal pressing rings 14a, 24a. The hook-like portions 14b and 24b are integrally formed, and the hook-like portions 14b and 24b are engaged with and disengaged from the hook-like portions of the fixing nuts 15 and 25 that fix the cylinder body 11 to the operation portion 1. It can be freely locked.

  The hook-like portions 14b and 24b are formed on one end side (the end on the back side) of the piston body locking members 14 and 24, and the end portions on the surface side of the piston body locking members 14 and 24 (the left end in FIG. 1). Part) is formed in a shape that expands in a bowl shape, and is in a state of being fixed by sandwiching the front wall part 52 of the operation part holding auxiliary tool 50 between the outer wall surface of the operation part 1.

  Therefore, by setting the hook-like portions 14b and 24b of the piston body locking members 14 and 42 to be locked to the fixing nut 15, the piston bodies 12 and 22 are held in a state where they do not come out of the cylinder bodies 11 and 21. At the same time, the operation unit holding auxiliary tool 50 is fixed to the operation unit 1 in a stable state.

  Then, the hook-like portions 14b, 24b of the piston body locking members 14, 42 are elastically deformed and removed from the fixing nuts 15, 25, so that the piston bodies 12, 22 are removed from the cylinder bodies 11, 22 as shown in FIG. At the same time as being extracted from 21, the operation unit holding auxiliary tool 50 is removed from the operation unit 1.

  Therefore, it is not necessary to provide a special member for fixing the operation unit holding auxiliary tool 50 to the operation unit 1, and the operation unit holding auxiliary tool 50 can be easily attached to and detached from the operation unit 1. Even if the attachment and detachment is repeated, the operation unit holding auxiliary tool 50 itself does not get fatigued or worn, and the operation unit holding auxiliary tool 50 can be attached to the operation unit 1 in a stable state.

  The present invention is not limited to the above-described embodiment. For example, as shown in FIGS. 11 and 12, the operation unit holding auxiliary tool 50 is operated only by the piston body locking member 14 of the suction operation valve 10. You may comprise so that it may fix to the part 1, or you may comprise so that it may fix only with the piston body latching member 24 of the air / water feeding operation valve 20.

It is a partial expanded side surface sectional view of the state where the auxiliary tool for operation part holding of the 1st example of the present invention was attached to the operation part. It is a partial expanded side surface sectional view of the state where the auxiliary tool for operation part maintenance of the 1st example of the present invention was removed from the operation part. 1 is an external view of an endoscope according to a first embodiment of the present invention. It is a piping diagram of the endoscope of the 1st example of the present invention. It is a side view of the operation part of the endoscope of the 1st example of the present invention. It is a perspective view which shows the operation part holding auxiliary tool of 1st Example of this invention alone. It is a side view of the operation part of the endoscope of the 1st example of the present invention. It is a front view of the operation part of the endoscope of the 1st example of the present invention. It is a bottom view of the operation part of the endoscope of the 1st example of the present invention. It is a side view of the state where the operator held the operation part of the endoscope according to the first embodiment of the present invention. It is a side view of the operation part of the endoscope of the 2nd example of the present invention. It is a side view of the operation part of the endoscope of the 3rd Example of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation part 10 Suction operation valve 20 Air supply / water supply operation valve 11,21 Cylinder body 12,22 Piston body 14,24 Piston body locking member 14b, 24b Hook-like part 50 Operation part holding auxiliary tool 51 Side protrusion part 52 Front Wall

Claims (5)

In the operation part of the endoscope provided with an operation valve in which a piston body that can freely advance and retract within the cylinder body is detachably attached to the cylinder body,
The operation unit holding auxiliary tool attached to the operation unit according to the shape of the operator's hand holding the operation unit is operated by the piston body locking member for locking the piston body to the cylinder body. The operation of the endoscope, wherein the operation unit holding auxiliary tool can be attached to and detached from the operation unit by removing the piston body locking member from the cylinder body. Department.   An air / water supply operation valve and a suction operation valve are provided as the operation valves, and the operation unit holding auxiliary tool is provided by the piston body locking member in each of the air / water supply operation valve and the suction operation valve. The operation part of the endoscope according to claim 1, which is fixed to the operation part.   The operation part is provided with at least one of an air supply / water supply operation valve and a suction operation valve, and the operation part holding auxiliary tool is provided by one piston body locking member of the air supply / water supply operation valve and the suction operation valve. The operation part of the endoscope according to claim 1, which is fixed to the operation part.   The operation part of the endoscope according to claim 1, 2, or 3, wherein the operation part holding auxiliary tool is sandwiched and fixed between an outer wall surface of the operation part and the piston body locking member.   The piston body locking member has a hook-shaped portion made of an elastic material, and the piston body locking member is engaged with and disengaged from the cylinder body by elastically deforming the hook-shaped portion. The operation part of the endoscope according to claim 1, 2, 3 or 4.

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