JPH07289505A - Light source device for endoscope - Google Patents

Abstract

PURPOSE:To make it possible to feed always purified air into the living body, to facilitate maintenance and to help maintain a purification function. CONSTITUTION:The air necessary for observation is fed by an air feed pump 5 into living the body via a pipeline 3b of an endoscope 3. This air feed pump 5 is freely attachably and detachably provided with a filter 8 for purifying the air sucked and passed therein on the suction side so that the sucked air is purified and the clean air is sent into the body. Since the filter is disposed freely attachably and detachably, the maintenance thereof is easy. Contaminating of a member for purification and degrading of its performance with the elapse of time are prevented by exchange.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light source device for an endoscope, which is capable of purifying air when supplying air during observation with an endoscope.

[0002]

2. Description of the Related Art Conventionally, by inserting an elongated insertion portion into a body cavity, an organ in the body cavity or the like can be observed, and if necessary, various treatment procedures can be performed by using a treatment instrument inserted in a treatment instrument channel. The endoscope that can be used is widely used.

In endoscopes, particularly medical endoscopes, when the body wall inserted into the body cavity comes into contact with the observation window of the endoscope,
Since it becomes unobservable, air is being sent into the body cavity. By this air supply, the endoscope observation window and the body wall are kept at a distance, and the naked eye observation and the imaging are performed under the proper illumination light from the light source device.

In recent years, there has been an increasing demand for disinfection and sterilization in the field of endoscopes. In addition to the generally performed disinfection and sterilization of the endoscope body, there is an increasing demand for the cleanliness of air sent into the body through the endoscope.

[0005]

However, in the conventional endoscope apparatus, no particular attention has been paid to the means for purifying the air. Normally, even if a filter that prevents dirt on the machine was provided, no consideration was given to the intrusion of minute dust and dust, and bacteria, etc., and it was unprotected. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a light source device for an endoscope in which purified air can always be sent into the body and maintenance is easy.

[0007]

The present invention provides an endoscope having an air supply source for supplying observation light to an endoscope for observing the inside of a body and for sending air into the body through a duct of the endoscope. In the light source device for a mirror, between the exhaust side of the air supply source and the conduit of the endoscope, or at least one of the air suction side of the air supply source, a purifying member for purifying passing air. It is exchangeable.

[0008]

With the above construction, the air is sent into the body through the endoscope by the air supply source, and the air is sent between the exhaust side of the air supply source and the conduit of the endoscope or the air of the air supply source. At least one of the suction sides is provided with a member for purifying the air that is sucked and passed through in an exchangeable manner, so that the sucked air can be purified and clean air can be sent into the body. In addition, since it is replaceable, maintenance is easy, and it is possible to prevent deterioration of the performance due to the cleaning member becoming dirty over time due to replacement.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 relate to a first embodiment of the present invention, FIG. 1 is an overall external view of an endoscope device, FIG. 2 is an internal configuration diagram of a light source device including an air supply mechanism, and FIG. 3 is a filter. FIG. 4 (a) is an external view, FIG. 4 (a) is a top view showing details of the periphery of the air supply pump inside the light source device, and FIG. 4 (b) is a side view of FIG. 4 (a).

The endoscope device 21 of this embodiment is a light source device 1.
And a camera control unit (CCU) 2 and an endoscope 3.

Inside the light source device 1, there are provided a lamp 4 which emits illumination light and a condenser lens 4a which condenses the illumination light and makes the illumination light enter the endoscope 3. The endoscope 3 is provided with a light guide 3a that transmits the illumination light.
And an air supply conduit 3b are provided. Further, the light source device 1 is provided with an air supply pump 5 as an air supply source. The air delivered by the pump 5 is guided to the conduit 3b of the endoscope 3.

2 and 4 show details of the periphery of the air supply pump 5 of the light source device 1. As shown in FIG.

As shown in FIG. 2, an air supply conduit 6 is provided on the exhaust side of the air supply pump 5, and the air supply conduit 6 communicates with the endoscope 3. A suction pipe line 7 is provided on the suction side of the air supply pump 5, and a suction side end portion of the suction pipe line 7 is provided with a filter 8 as a purifying member capable of removing dust of the order of micron or the latest. It is supposed to be provided. The suction side end of the suction conduit 7 is shown in FIG.
As shown in (a), a filter connecting member 11 formed of an elastic member is provided.
Is connected to the fixed plate 10 fixed to the housing 12 as shown in FIG. The filter connecting member 11
Are provided so that their ends project from the housing 12.

The filter 8 is detachably provided outside the housing 12 via the filter connecting member 11.

FIG. 3 shows a general external view of the filter 8. The filter 8 has an intake port 8b and an exhaust port 8c protruding from both surfaces of a disk-shaped filter portion 8a. As shown in FIG. 4 (a), the exhaust port 8 c is connected to the suction side end of the suction conduit 7 via the filter connecting member 11, while the suction port 8 b is arranged outside. It is designed to communicate with.

In the above structure, air is blown into the body during the clinical period in order to maintain the distance between the tip of the endoscope 3 and the body cavity observation site. Due to the operation of the air supply pump 5, negative pressure is generated,
The air is taken from the suction port 8b of the filter 8 and sent to the suction side pipe line 7. At this time, the air is purified by the filter 8 and does not contain dust or germs. The purified air is sent to the conduit 3b of the endoscope 3 via the air supply conduit 6, and is discharged into the body cavity from the opening of the tip of the conduit 3b.

The filter 8 is contaminated by filtering dust and germs, but can be attached / detached and replaced at the position of the filter connecting member 11 if necessary.

In the present embodiment, it is not necessary to send dirty air into the body by the filter 8, and the filter for air cleaning can be easily carried out without complicating the conduit between the pump and the endoscope in the housing. Can be attached and detached easily by providing a filter on the suction side of the pump.

FIGS. 5 and 6 relate to the second embodiment of the present invention, FIG. 5 is a top view of the inside of the light source device showing an example of filter arrangement, and FIG. 6A shows another example of filter arrangement. FIG. 6B is a top view of the inside of the light source device, and FIG. 6B is a perspective view of the holder equipped with the filter.

The second embodiment differs from the first embodiment in the following points. That is, in the first embodiment, the filter 8 is provided at the suction-side end of the suction conduit 7 via the filter connecting member 11, but in the present embodiment, the filter 8 is provided at another position of the suction-side conduit 7. It is arranged. Other configurations and operations similar to those of the first embodiment are designated by the same reference numerals and description thereof will be omitted.

In the configuration example shown in FIG. 5, the filter 8 is used.
Are interposed and connected between the exhaust side end of the suction pipe line 7 and the air supply pump 6, and communicate with each other. On the suction side of the air supply pump 5, the exhaust port 8c of the filter 8 is directly provided.
Are connected. At the suction side end of the suction pipe line 7,
The filter connecting member 11 is connected to the fixing plate 10.
It communicates with the outside of the housing 12 through a filter connecting member 11 connected to the.

In the configuration example shown in FIG. 6, the exhaust port 8c of the filter 8 is connected to the suction side end of the suction pipe line 7 as shown in FIG. It is fixed to the housing 12 via a holder 13 shown in FIG. The suction port 8b of the filter 8 communicates with the outside of the housing 12.

In this embodiment, since the filter 8 does not appear on the surface of the housing 12 of the light source device 1, it does not interfere. The rest of the configuration, functions and effects are the same as those of the first embodiment, and the explanation is omitted.

FIG. 7 relates to a third embodiment of the present invention, (a)
Is a configuration diagram of the light source device in which the replacement door is open, and (b) is an external view of the light source device in which the replacement door is closed.

In the light source device 25 of the third embodiment shown in FIGS. 7A and 7B, the filter 8 is provided outside the casing 12 of the first embodiment, but this filter 8 Is different in that it is provided inside the housing 26 while being removable. Further, as shown in FIG. 7A, the light source device 25 is provided with an opening in a part of the housing 26 adjacent to the installation position of the filter 8, and the opening of the filter duct 2 is provided in this opening.
An exchange door 28 having 7 is provided so as to be openable and closable. Other than that, the drawings of the same configurations and operations as those of the first embodiment are omitted, the same reference numerals are given, and only different points will be described.

As in the first embodiment, the end of the suction pipe 7 is provided with the filter attaching / detaching member 11 and is fixed to the housing 26 via the fixing plate 29. The filter 8 is detachably connected to the filter connecting member 11 (not shown in FIG. 7) so as to be guided by the fixing plate 29.

As shown in FIG. 7B, the exchange door 28 is fixed to the opening of the housing 26 so as to be openable and closable via a hinge 28a. The filter duct 27 provided on the replacement door 28 has air permeability and faces the suction port of the filter 8. The exchange door 28
Is provided with an opening / closing member 30 that surely locks when closed.

In the structure of this embodiment, the outside air is sucked into the suction pipe line 7 connected to the filter 8 through the filter duct 27. The subsequent operation is the same as in the first embodiment.

In this embodiment, the filter 8 is the light source device 25.
In addition, since it does not appear on the surface of the housing 26, it has a good appearance and is not an obstacle, and the replaceability of the filter 8 is not impaired. The filter 8 can be replaced by unlocking the opening / closing member 30 and opening the replacement door 27. The rest of the configuration, functions and effects are the same as those of the first embodiment, and the explanation is omitted.

FIG. 8 relates to a fourth embodiment of the present invention, (a)
FIG. 3 is an explanatory diagram regarding the configuration of the light source device, and FIGS. The light source device 33 of the present embodiment shown in FIG. 8A is replaced with the exchange door 34 of the third embodiment, which is configured to be detachable and replaceable.
Is provided. Other configurations and operations similar to those of the third embodiment are designated by the same reference numerals and description thereof will be omitted.

The exchange door 34 has the same parts (b) and (c) as shown in FIG.
As shown in FIG. 3, the filter duct 27 is provided, the projections 35, 35 are provided on the bottom thereof, and the elastic projection 36 made of an elastic member or the like is provided on the upper portion thereof. A handle 34a is provided on the upper surface of the exchange door 34 so as to project therefrom.

On the side of the casing 37 of the light source device 33,
Recesses 38, 38, 39 are provided at respective positions facing the protrusions 35, 35 and the elastic protrusion 36.

In the construction of this embodiment, the replacement door 34 is mounted by mounting the projections 35, 35 on the housing 3 as shown in FIG.
7, the elastic protrusion 33 is engaged with the recess 39. To remove the replacement door 34, as shown in FIG. 3C, the side of the replacement door 34 on which the elastic protrusion 36 is provided is pulled by the handle 34a, and the replacement door 34 is removed.

The rest of the configuration, operation and effect are the same as those of the third embodiment, and the explanation is omitted.

9 to 11 relate to a fifth embodiment of the present invention, and FIG. 9 is a structural view of an air supply mechanism of a light source device, FIG.
0 (a) is a configuration diagram of the air supply mechanism when the drawer is opened,
10B is a side view of the sterilization filter, FIG. 10C is a top view of the sterilization filter, and FIG. 11 is an enlarged perspective view of the drawer.

FIG. 9 is a schematic diagram of the air supply mechanism of the light source device 40 for an endoscope. An air supply pump 42 is provided in a housing 41 of the light source device 40. A first air supply tube 43 and a sterilization filter 44 as a cleaning member are provided so as to communicate with the air supply pump 42. , The second air supply tube 4
5 and the scope-side tube 46 constitute an air supply conduit in this order. The sterilization filter 44 is fixed by a plurality of packings 48 in a drawer 47 provided on the side surface of the housing 41. Further, the drawer 47 is opened / closed by pulling a handle 49.

FIG. 10A shows a state in which the drawer 47 is opened and the sterilization filter 44 is removed. 10 (b) and 10 (c) are enlarged views of the sterilization filter 44.

As shown in FIG. 10B, the connection holes 50 and the connection holes 51 of the sterilization filter 44 are respectively the first
It is a hole into which the air supply tube 43 and the second air supply tube 45 are inserted. Except for the coupling holes 50 and 51, the entire surface is airtight so that air does not leak.

FIG. 11 is an enlarged perspective view of the drawer 47. The connecting hole 52 and the connecting hole 53 of the drawer 47
Are holes through which the first air supply tube 43 and the second air supply tube 44 respectively pass when the drawer 47 is closed. By opening and closing this drawer 47, the sterilization filter 44
The first and second air supply tubes 44 are detachable,
It is designed to communicate airtightly.

In the above structure, the outside air taken in by the air supply pump 42 passes through the air supply tube 43,
After being sent to the sterilization filter 44 and sterilized, it passes through the second air supply tube 45 and the scope-side tube 46 of the endoscope.
Sent to.

When the ability of the sterilization filter 44 is deteriorated due to dirt or damage due to long-term use, a new sterilization filter can be replaced by a simple and easy method of opening / closing the drawer 47.

In the present embodiment, the outside air taken in from the air supply pump 42 is sterilized by the sterilization filter 44 before being sent to the scope-side tube 46, so that bacteria in the outside air enter the body of the patient. There is no such thing. Since the disinfection filter 44 can be attached and detached very easily and easily, the user can replace the disinfection filter 44 himself.

In addition to the configuration of this embodiment, a filter 8 may be provided on the suction side of the pump 42 as in the first embodiment.

12 to 14 relate to a sixth embodiment of the present invention, FIG. 12 is a schematic configuration diagram of an air supply mechanism of a light source device 55 for an endoscope, and FIG. FIG. 13 (b) is a side view of the sterilization filter, FIG.
FIG. 14C is a top view of the sterilization filter, and FIG. 14 is an enlarged perspective view of the drawer.

The present embodiment is different from the fifth embodiment in that the disinfection filter is not attached and detached by opening and closing a drawer provided on the side surface of the housing, but the disinfection filter 56 has a handle 5.
7, the sterilization filter 56 itself is configured to be inserted into and removed from the side surface of the housing 41, and the filter 56 itself is removable. Other configurations and operations similar to those of the fifth embodiment are designated by the same reference numerals, and description thereof will be omitted.

FIG. 13A shows the disinfection filter 54 in the housing 4.
It is the figure which has shown the mode that it pulls out from 1. Also, FIG.
3B and 3C are enlarged views of the sterilization filter 56 to which the handle 57 is attached. By inserting and removing the sterilization filter 54, the first and second air supply tubes 43, 45
And the sterilization filter 54 are detachably attached and communicate with each other in an airtight manner.

With the above construction, it is sufficient to push the handle 57 to check whether the disinfection filter 56 has become dirty or damaged due to long-term use and to replace the disinfection filter.

In this embodiment, the sterilization filter replacement function can be made simple and inexpensive. Other configurations and effects
Since it is similar to the fifth embodiment, the explanation is omitted.

FIG. 15 is a block diagram showing the air supply mechanism of the endoscope light source device according to the seventh embodiment.

In the endoscope light source device 60 shown in FIG. 15, an air supply pump 62 is provided in the housing 61, and the first air supply tube 63 and the sterilization filter are provided so as to communicate with the pump 62. An air supply conduit is configured in the order of 64, the second air supply tube 65, and the scope-side tube 66.

Further, the air supply pump 62 and the first air supply tube 6
An antibacterial coat 62a, an antibacterial coat 63a, and an antibacterial coat 65a are provided on the inner surfaces of the third air supply tube 65 and the second air supply tube 65, respectively, to prevent the growth of bacteria at all the places directly contacted by air.

In the above structure, the outside air taken in by the air supply pump 62 passes through the first air supply tube 63,
After being sent to the sterilization filter 64 and sterilized, it is sent to the scope side tube 66 through the second air supply tube 65. Further, the air supply pump 62, the first air supply tube 63, the second
In the air supply tube 65, bacterial growth is suppressed by each antibacterial coat.

In this embodiment, the outside air taken in from the pump 62 is sterilized by the sterilization filter 64 before being sent to the scope side tube 66, so that the invasion of bacteria in the outside air into the patient's body is suppressed as much as possible. be able to. Further, in the air supply path when the light source device is not used, the sterilization filter 6
Even when bacteria propagate on the intake side of 4, since the antibacterial coats 62a and 63a completely prevent the bacteria in the air supply passage from being propagated and the growth of bacteria is suppressed as much as possible, the burden on the sterilization filter 64 at the next air supply is reduced. Can be reduced. Similarly, even on the side of the scope-side tube 66 with respect to the sterilization filter 64, the bacteria in the outside air that flowed back from the scope-side tube 66 are propagated in the second air-feeding tube 65 by the antibacterial coat 65a. Since the bacteria are totally antibacterial and the growth of bacteria is suppressed as much as possible, there is almost no problem in hygiene.

FIG. 16 (a) is a structural view of an air supply mechanism of the endoscope light source device according to the eighth embodiment of the present invention.

The apparatus of this embodiment is different from the seventh embodiment in that the sterilization filter 64 is not provided in the middle of the air supply tube, and the air supply tube 71, the That is, the disinfection filter 64 and the scope-side tube 66 are configured in this order. An antibacterial coat 71 a is applied inside the air supply tube 71. Other configurations and operations similar to those of the seventh embodiment are designated by the same reference numerals, and description thereof will be omitted.

With the above construction, the outside air is sterilized by the sterilization filter 64 and then sent to the scope-side tube 66.
In the air supply pump 62 and the air supply tube 71, the antibacterial coat 71a suppresses the growth of bacteria.

In this embodiment, the disinfection filter 64 is provided immediately before the scope-side tube 66, so that bacteria do not propagate between the disinfection filter 64 and the scope-side tube 66.

The rest of the configuration, operation, and effects are the same as in the seventh embodiment, and a description thereof will be omitted.

FIG. 16 (b) is a structural view of the air supply mechanism of the endoscope light source device according to the ninth embodiment of the present invention.

The present embodiment is different from the seventh embodiment in that the antibacterial coat is provided on the scope side tube 6 rather than the sterilization filter 64.
This is done only in the second air supply tube 65 on the 6 side. The air supply pump 62 and the first air supply tube 63 are not provided with an antibacterial coat.

With the above structure, the outside air is sterilized by the sterilization filter 64 and then sent to the scope-side tube 66.
In addition, in the second air supply tube 65, bacterial growth is suppressed by the antibacterial coat 65a.

In this embodiment, unlike the first embodiment, the antibacterial coat is not provided on the intake side of the sterilization filter 64.
Although it is not possible to reduce the load on the sterilization filter 64, since the antibacterial coat 65a is provided in the second air supply tube 65, bacteria may not be present between the sterilization filter 64 and the scope-side tube 66 in the air supply conduit. It breeds and does not enter the body during insufflation. Also, the cost is much lower than that of the first embodiment.

[Supplementary Note 1] In the endoscope light source device according to claim 1, the air sent from the air supply source is a distance between the endoscope and the body, and is a distance necessary for observation. Send into the body to keep.

[Supplementary Note 2] In the light source device for an endoscope according to claim 1, the cleaning member is dust in units of microns,
A filter that can remove dust or bacteria.

[Supplementary Note 3] In the endoscope light source device according to the first aspect, the purification member is provided so as to be exposed on the outer surface of the casing of the device.

[Supplementary Note 4] In the endoscope light source device according to claim 1, the purification member is provided inside a casing of the device, and the purification member is opposed to the purification member. An opening is provided in a part, and a ventilating door that can be opened / closed or detached is arranged.

[Supplementary Note 5] In the endoscope light source device according to the first aspect, the purification member is disposed so as to be insertable into and removable from the housing of the device, and when the attachment is made, the air supply source and the air supply source are provided. It is configured to communicate with the duct of the endoscope in an airtight manner.

In the structure described in appendix 5, a purifying member is provided in the middle of the air supply path to prevent bacteria and dust from entering the body during air supply, and the purification member can be attached and detached easily. By doing so, the user can replace the filter by himself.

[Supplementary Note 6] In the endoscope light source device according to claim 1, inside at least one of the air supply source or the conduit for communicating the air supply source with the conduit of the endoscope. There is an antibacterial coat on the part that comes in contact with the passing air.

In the structure described in appendix 6, by providing a purifying member in the middle of the air supply path, bacteria and dust in the outside air are prevented from entering the body, and an antibacterial coat is applied to the air supply path. This prevents bacteria from growing in the outside air or from the body that remains in the air supply path.

[0071]

According to the light source device for an endoscope of the present invention, purified air can be constantly sent into the body, and maintenance can be facilitated to help maintain the purification function. effective.

[Brief description of drawings]

1 to 4 relate to a first embodiment, and FIG. 1 is an overall external view of an endoscope apparatus.

FIG. 2 is a schematic configuration diagram of a light source device including an air supply mechanism.

FIG. 3 is an external view of a filter.

FIG. 4 (a) is a top view showing details of the periphery of the air supply pump inside the light source device, and FIG. 4 (b) is a side view of FIG. 4 (a).

5 and 6 relate to the second embodiment, and FIG. 5 is a top view of the inside of the light source device showing an example of the arrangement of the filters.

FIG. 6A is a top view of the inside of a light source device showing another arrangement example of a filter, and FIG. 6B is a perspective view of a holder to which the filter is attached.

7A and 7B relate to the third embodiment, FIG. 7A is a configuration diagram of a light source device with an exchange door open, and FIG. 7B is an external view of a light source device with an exchange door closed.

8A and 8B relate to the fourth embodiment, and FIG. 8A is an explanatory diagram regarding a configuration of a light source device, and FIGS. 8B and 8C are explanatory diagrams regarding attachment / detachment of a replacement door.

9 to 11 relate to a fifth embodiment, and FIG. 9 is a configuration diagram relating to an air supply mechanism of a light source device.

FIG. 10 (a) is a configuration diagram of an air supply mechanism when the drawer is opened, and FIG. 10 (b) is a side view of the sterilization filter.
FIG.10 (c) is a top view of a disinfection filter.

FIG. 11 is an enlarged perspective view of the drawer.

12 to 14 relate to a sixth embodiment, and FIG. 12 is a schematic configuration diagram of an air supply mechanism of a light source device for an endoscope.

13 (a) is an explanatory view showing attachment / detachment of a sterilization filter, FIG. 13 (b) is a side view of the sterilization filter, FIG.
(C) is a top view of a disinfection filter.

FIG. 14 is an enlarged perspective view of the drawer.

FIG. 15 is a configuration diagram of an air supply mechanism of a light source device for an endoscope according to a seventh embodiment.

16 (a) shows an eighth embodiment, and FIG. 16 (b).
9A and 9B are configuration diagrams regarding an air supply mechanism of a light source device for an endoscope according to each of the ninth embodiments.

[Explanation of symbols]

 21 ... Endoscope device 1 ... Light source device 5 ... Air supply pump 6 ... Air supply line 7 ... Suction line 8 ... Filter 2 ... CCU 3 ... Endoscope

Claims (1)

[Claims] 1. A light source device for an endoscope, comprising an air supply source for supplying observation light to an endoscope for observing the inside of a body and for feeding air into the body through a conduit of the endoscope, A purifying member for purifying passing air is replaceably provided on at least one of the exhaust side of the air supply source and the conduit of the endoscope or the air suction side of the air supply source. A light source device for an endoscope.