JP3756621B2 - Endoscope pipe unit connection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a configuration of a connecting device for connecting a pipe line unit to a main body side in an endoscope configured so that pipe lines such as a suction pipe and an air / water supply pipe can be separated by the pipe line unit.
[0002]
[Prior art]
A conventional electronic endoscope (scope), for example, includes a distal end portion having a CCD (Charge Coupled Device), an insertion portion, an operation portion, and a cable, and this cable is connected to a light source device and a processor device. The endoscope main body and the cable are provided with a light guide and an electric signal line, and an air supply tube and a water supply tube for supplying air / water to the distal end, insertion of a treatment tool, A suction tube for sucking the contents is arranged.
[0003]
According to such an endoscope, the light from the light source device is irradiated from the distal end portion through the light guide, and based on this, the object to be observed is imaged and observed by the CCD. At this time, air can be supplied and supplied from the tip to the observation window, etc. using the air supply tube and the water supply tube, and the suction tube can be used to insert a treatment instrument and suck / discharge filth in the observed body. It becomes.
[0004]
[Problems to be solved by the invention]
By the way, since the above-described endoscope apparatus is used in a medical field, it is necessary to clean and sterilize the various pipes. In order to perform the cleaning and sterilization efficiently, the pipes are separated on the way. It has been proposed to do. In other words, the pipeline unit is configured to be detachably attached between the pipeline on the endoscope main body side and the pipeline on the solenoid valve unit side, for example. According to this, the shortening of the pipe line facilitates cleaning with the washing brush, and the separated pipe unit can be sterilized by an autoclave or the like.
[0005]
However, since the fixing position of the pipe unit connected to the endoscope body cannot be freely changed, the cable of the pipe unit may be routed depending on the arrangement of the main body side cable and other devices. It may not be good and it may be difficult to operate the endoscope. That is, while the cable on the endoscope body side is connected to the light source device and the processor device, the cable of the conduit unit is connected to the electromagnetic valve unit, and the overall connection relationship becomes complicated. In some cases, the fixed state of the conduit unit may not be an optimal position with respect to the main body. Therefore, in this case, it is convenient if the fixing position (position in the rotation direction) of the pipeline unit can be changed.
[0006]
In addition, when the forceps port is arranged in the conduit unit, there is a position of the forceps port where the treatment tool can be easily introduced, and in order to use the treatment tool at the position of the forceps port, It is preferable that the fixing position can be changed.
[0007]
The present invention has been made in view of the above problems, and its purpose is to be able to change the fixing position in the rotational direction of the duct unit, to improve the cable handling, and to operate the endoscope. It is an object of the present invention to provide an endoscope duct unit connecting device that is easy to use.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an endoscope conduit unit connecting device for detachably connecting a conduit unit to an endoscope main body in which various conduits are arranged. A first fitting member provided with an annular pipe line that is arranged in the main body side connecting part and has a circulation space concentrically formed in a range of 360 degrees, and is arranged in the pipe line unit side connecting part, and the first fitting A second fitting member that is provided with a similar annular duct that fits into the annular duct of the member, and that is rotatable within a range of 360 degrees with respect to the first fitting member; the second fitting member; in a state where the fitting the first fitting member, seen including a fixing means for fixing the pipe unit to the body, and above the first and second fitting members, usually of the tube to the center And the annular conduit that realizes other functions is formed around the suction conduit. The fitting member, characterized in that the projecting length of the suction channel and longer than the other annular conduit.
[0009]
According to said structure, a connection part can rotate in the range of 360 degree | times by fitting with the 1st fitting member and the 2nd fitting member which have a concentric annular pipe line, The pipe | tube with respect to a main body side The fixed position of the road unit can be freely selected. If the conduit unit is arranged at an optimal position and then fixed by the fixing means, the conduit unit can be arranged at a position where the cable can be easily routed, or at a position where the endoscope operation can be easily performed. The position can be changed freely. Also, the position of the forceps opening can be changed.
[0010]
Further, since the suction tube that need to increase most of the flow passage space is arranged in the center, together with the pipeline unit (second engagement member) and the body (first fitting member) is easily connected, There is an advantage that the rotation operation at the time of positioning is stabilized. In addition, when the conduit unit is removed, water remaining in the annular conduit on the main body side can be sucked and collected by the suction tube protruding.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
1 to 5 show an endoscope conduit unit connecting device according to a first example of the embodiment. First, the configuration around the conduit unit connecting portion will be described with reference to FIG. In FIG. 4, on the front side (left side in the figure) of the endoscope operation unit 10C, a tip part having a CCD is arranged via an insertion part, and a cable 10D is provided on the lower side, and this cable 10D is a light source. It is connected to a device and a processor (image processing) device.
[0012]
That is, the cable 10D includes a light guide 12 disposed from the distal end portion to the operation unit 10C and a signal line 13 for driving the CCD and reading an image signal. It connects to the light source device and serves to connect the signal line 13 to the processor device.
[0013]
The operation unit 10C is also provided with an air / water feed button (two-stage switch) 15A, a suction button 15B, and a hard copy button 15C, which are electrical switches, and the air / water feed button 15A and the suction button 15B. The operation switch signal is supplied to the solenoid valve unit via the processor device. In addition, an angle knob (not shown) or the like is also arranged in the operation unit 10C. Furthermore, in the operation section 10C (main body), the liquid in the body to be observed is sucked, the suction pipe 16A serving as a treatment instrument insertion channel, the air supply pipe 17A for supplying air and water to the observation window at the distal end, and the feed pipe A water pipe 18A is arranged.
[0014]
A duct unit 20 is detachably provided at the rear end of the operation unit 10C. This pipe line unit 20 is composed of a support part 20A and a cable 20B, and a suction pipe 16B to be connected to each of the pipe lines 16A, 17A, 18A on the side of the operation part 10C, a feed pipe A trachea 17B and a water supply pipe 18B are arranged, and these pipes 16B to 18B are guided to the electromagnetic valve unit. This electromagnetic valve unit has an aspirator and a tank part for suction or water supply, and controls the flow of fluid in each pipeline by the electromagnetic valve.
[0015]
Further, a forceps port 23 is provided on the suction tube 16B on the side of the duct unit 20 via a branch tube 22, and the forceps port 23 serves as an introduction port for a treatment instrument. Note that a rubber cap 24 is put on the forceps opening 23 during suction.
[0016]
FIG. 1 shows an enlarged view of the connecting portion between the operation unit 10C and the pipe line unit 18, FIG. 2 shows a cross-sectional view of the fitting member in the fitting state of FIG. 1, and FIG. The connection part in the removed state is shown. As shown in the figure, the connecting portion between the operation portion 10C and the pipeline unit 20 is a screw fixing type. That is, a receiving portion 26 having a male screw formed on the outer periphery is attached to the operation portion 10C, and a fixing ring 27 that is rotatable by forming a female screw on the inner periphery is provided on the support portion 20A of the conduit unit 20. . Therefore, the pipe unit 20 can be connected and fixed to the operation portion 10C by screwing and coupling the fixing ring 27 to the receiving portion 26.
[0017]
And the 1st fitting member 28 is integrally attached to the center side of said receiving part 26, The connection suction pipe 16C is formed in this 1st fitting member 28 in the center part, This connection suction | inhalation is carried out. An annular air supply conduit 17C and an annular water supply conduit 18C are formed outside the tube 16C in a concentric range of 360 degrees. The air supply pipe 17A is connected to the annular air supply pipe 17C, and the water supply pipe 18A is connected to the annular water supply pipe 18C.
[0018]
On the other hand, a second fitting member 29 protrudes from the support portion 20A of the fixing ring 27, and the second fitting member 29 has a protruding suction tube that fits the connecting suction tube 16C at the center thereof. 16D is provided on the outer side of the projecting suction pipe 16D, and is formed concentrically within a range of 360 degrees. The annular air supply pipe 17D is fitted into the annular air supply pipe 17C, and is fitted into the annular water supply pipe 18C. An annular water supply line 18D is provided. The air supply pipe 17B is connected to the annular air supply pipe 17D, and the water supply pipe 18A is connected to the annular water supply pipe 18D.
[0019]
Further, as shown in FIG. 2, the pipe width D1 of the annular water supply pipes 18D and 18C when the first fitting member 28 and the second fitting member 29 are fitted is set to the annular air supply pipes 17D and 17C. It is made smaller than the pipe width D2. Thereby, the volume of the circulation space of the annular water supply pipes 18D and 18C provided on the outer peripheral side can be made substantially the same as the volume of the circulation space of the other annular air supply pipes 17D and 17C.
[0020]
Further, as shown in FIG. 3, the protruding suction pipe 16D has a length that protrudes from the other annular pipes 17D and 18D, and thus the protruding suction pipe 16D and the suction pipe 16B are connected to each other. Thus, the water remaining in the annular pipes 17C and 18C on the operation unit 10C side can be sucked and collected.
[0021]
The example has the above-described configuration. When the pipe unit 20 is connected to the operation unit 10C, as is understood from FIG. 3, the projecting suction pipe 16D is first connected to the connection suction pipe 16C, and then the annular suction pipe 16C. The fixing pipe 27 is received while fitting the air supply pipe 17D to 17C and the annular water supply pipe 18D to 18C in this order (the second fitting member 29 is fitted to the first fitting member 28). Screwed to the part 26. At this time, before the fixing ring 27 is completely tightened, the second fitting member 29 can be rotated within a range of 360 degrees with respect to the first fitting member 28, and the mounting rotation position of the conduit unit 20 can be freely selected. can do. And if the said fixing ring 27 is fastened to the receiving part 26 to the last, the pipe line unit 20 can be fixed to the operation part 10C.
[0022]
FIG. 5 shows a view from the rear side of the operation unit 10C (the angle knob is omitted). If the conduit unit 20 is connected in the state of FIG. 4, as shown in FIG. The cable 20B of the duct unit 20 is arranged so as to be aligned with the cable 10D. FIG. 5B shows a state in which the support portion 20A of the pipe line unit 20 is rotated and fixed counterclockwise by about 90 degrees as compared with FIG. 5A. In this case, the cable 20B and the forceps port are fixed. 23 is arranged in the horizontal direction.
[0023]
As described above, in this example, the cable 20B of the pipe line unit 20 can be disposed at an arbitrary position, so that the cable 20B can be easily routed and the endoscope can be easily operated. In addition, since the position of the forceps opening 23 can be changed as described above, it is possible to select a position where the treatment instrument can be easily operated.
[0024]
Then, the suction pipes 16A and 16B, the air supply pipes 17A and 17B, and the water supply pipes 18A and 18B are connected by connecting the pipe line unit 20 to the operation unit 10C. Then, by pressing the air / water supply button 15A of the operation unit 10C, air / water is supplied to the observation window of the tip 10A through the air supply pipes 17A and 17B and the water supply pipes 18A and 18B. By pressing 15B, it is possible to suck and collect liquid or the like in the observed body through the suction tubes 16A and 16B.
[0025]
Further, in the above suction pipe 16B, the protruding pipe 16D disposed so as to protrude from the other pipes 17D and 18D as described above, the annular pipe 17C on the operation unit 10C side when the pipe unit 20 is removed. Water or the like remaining in 18C can be sucked and collected.
[0026]
FIG. 6 shows a second example for improving the suction of residual water or the like in another pipe line by the suction pipe 16D. That is, in this second example, a receiving part 31 and a fixing ring 32 having a longer screwing (screw) part than the receiving part 26 and the fixing ring 27 of the first example are arranged, and the fixing ring 32 and the receiving part 31 are coupled. Before the release is released (when the airtight member is provided on the support portion 20A, before the coupling with the airtight member is released), the protruding tube 16D in the figure is configured to be detached from the connecting tube 16C.
[0027]
According to the second example, in the state shown in FIG. 6, water remaining in the annular air supply pipe 17C and the annular water supply pipe 18C on the operation part 10C side, water leaked into the receiving part 31, etc. Suction can be reliably performed.
[0028]
In the above embodiment, an example in which the suction pipe 16, the air supply pipe 17, and the water supply pipe 18 are provided is shown, but other pipes may be provided, and conversely, only one or two of these pipes are provided. In some cases, various modifications are possible, such as providing a guide rod without providing a pipe line at the center.
[0029]
【The invention's effect】
As described above, according to the present invention, in an endoscope that detachably connects a pipe unit to a main body, the first fitting member on the main body side and the second fitting member on the pipe unit side The circulation space is fitted concentrically with an annular conduit formed in a range of 360 degrees so that they can be fitted with each other in a state where they can be rotated by 360 degrees, and the connecting portion is fixed in a state where the position in the rotational direction is arbitrarily selected. As a result, the fixing position of the conduit unit can be freely changed, and the cable of the conduit unit can be easily routed and the endoscope can be easily operated. In addition, the forceps opening can be arranged at a position where the treatment instrument can be easily introduced.
[0030]
In addition , a suction pipe line is arranged at the center of the first and second fitting members, and another annular pipe line is formed around the suction pipe line. In each pipe line of the second fitting member, a suction pipe line is formed. Since the protruding length is longer than the other annular pipes, it is easy to fit the pipe unit to the main body side, the rotation operation during positioning is stable, and when the pipe unit is removed, the main body side There is an advantage that water remaining in the annular pipe can be sucked and collected.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a configuration of an endoscope duct unit connecting apparatus according to an embodiment of the present invention.
2 is a cross-sectional view of a fitting member in a fitting state at a connecting portion in FIG. 1;
3 is a cross-sectional view showing a state when a connecting portion in FIG. 1 is removed. FIG.
FIG. 4 is a diagram illustrating a configuration around a connection unit of an operation unit and a pipeline unit of the first example.
5 is a view of the endoscope operation unit as seen from the rear side, where FIG. (A) shows a state corresponding to the arrangement of FIG. 4, and FIG. (B) shows a state where the conduit unit is rotated in an arbitrary direction. FIG.
FIG. 6 is a cross-sectional view illustrating a configuration of a coupling device according to a second example of the embodiment.
[Explanation of symbols]
10C: operation unit,
10D cable,
16A, 16B, 16C ... suction tube,
16D ... Projecting suction tube,
17A, 17B ... Air pipe,
17C, 17D: Annular air supply line,
18A, 18B ... water pipe,
18C, 18D ... An annular water pipe,
20 ... pipeline unit,
26, 31 ... receiving part,
27, 32 ... fixing ring,
28 ... 1st fitting member,
29 ... 2nd fitting member.

Claims (1)

An endoscope pipe unit connecting device for detachably connecting a pipe unit to an endoscope main body in which various pipes are arranged,
A first fitting member that is disposed in the main body side coupling portion and includes an annular conduit that forms a circulation space concentrically in a range of 360 degrees;
It is disposed at the pipe unit side connecting portion, and includes a similar annular pipe that fits into the annular pipe of the first fitting member, and is rotatable within a range of 360 degrees with respect to the first fitting member. A second fitting member;
In this second fitting member and the state in which fitted the first fitting member, seen including a fixing means for fixing the pipe unit to the main body, and
In the first and second fitting members, a suction pipe line made of a normal pipe is arranged at the center, and the annular pipe line for realizing other functions is formed around the suction pipe line, and the second fitting member An apparatus for connecting a duct unit of an endoscope, wherein the protruding length of the suction duct is longer than that of the other annular ducts .

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