JP5135077B2 - Medical device tip cleaning unit - Google Patents

Description

  The present invention relates to a medical instrument tip cleaning unit that cleans the tip of an insertion part that is inserted into a body cavity of a medical instrument.

  In recent years, endoscopes that are medical instruments have been widely used in the medical field and industrial field. An endoscope used in the medical field observes an organ in a body cavity by inserting an elongated insertion portion into a body cavity, or inserts into an insertion channel of a treatment instrument provided in the endoscope as necessary. Various treatments can be performed using the treatment tool.

  Endoscopes in the medical field are used by being inserted into body cavities, particularly for the purpose of examination and treatment. Therefore, after use, cleaning and disinfection are necessary for reuse. As a method for cleaning and disinfecting a used endoscope, for example, a method using an endoscope cleaning and disinfecting apparatus (hereinafter simply referred to as a cleaning and disinfecting apparatus) is well known.

  If the cleaning / disinfecting device is used, the endoscope is only set in the cleaning / disinfecting tank of the cleaning / disinfecting device, and the endoscope is automatically cleaned, disinfected, rinsed, drained, etc. (hereinafter referred to as cleaning). (Referred to as a disinfection process). At this time, the endoscope includes not only the outer surface of the endoscope but also a plurality of endoscopes such as known air / water supply conduits, suction conduits, treatment instrument insertion conduits, etc. Cleaning and disinfection is performed by supplying cleaning liquid and disinfecting liquid to the inside of the pipe. The cleaning / disinfecting apparatus can clean and disinfect not only endoscopes but also various medical instruments such as treatment instruments.

  By the way, the endoscope is cleaned in the cleaning / disinfecting apparatus by immersing the endoscope in the cleaning liquid stored in the cleaning / disinfecting tank and generating a water flow in the cleaning liquid.

  However, when only cleaning using a cleaning / disinfecting device is used, a known water supply nozzle for supplying water to the objective lens provided at the distal end of the insertion portion of the endoscope, or a case where the endoscope is a side-view type endoscope Removes dirt that adheres firmly to various members provided at the distal end, such as a known treatment instrument elevator that causes the treatment instrument inserted into the endoscope to protrude from the side surface of the distal end by changing the protruding direction. There was a problem that I could not do it. This is because if a cleaning liquid having a high cleaning effect is used for cleaning the endoscope, the parts of the endoscope and the parts of the cleaning / disinfecting apparatus are deteriorated by the cleaning liquid.

  Therefore, conventionally, before the cleaning using the cleaning / disinfecting apparatus, the operator performs preliminary cleaning by scrubbing the tip with a cleaning brush or the like, and the dirt adhered to the various members at the tip. Was previously removed, and then cleaning was performed using a cleaning / disinfecting apparatus.

  However, in this method, since the preliminary cleaning is performed by the operator, it is very complicated for the operator and there is a problem that the preliminary cleaning level differs for each operator. In addition, even when scrubbing using a cleaning brush or the like, there is a problem that it is difficult to remove dirt adhering to complicated parts in parts such as a water supply nozzle and forceps raising base.

  In view of such a problem, Patent Document 1 provides a cleaning / disinfecting tank of a cleaning / disinfecting apparatus with a small cleaning tank into which a tip is inserted, and in the small cleaning tank, only the tip is automatically ultrasonicated. A cleaning / disinfecting apparatus having a function of cleaning or brush cleaning is disclosed.

Further, Patent Document 2 discloses an insertion in which an insertion portion including a distal end portion is scrubbed with a cleaning brush when an insertion portion is inserted and removed by an operator in a cleaning tool body having a cleaning brush on an inner peripheral surface. Some cleaning tools are disclosed.
JP-A-5-228113 Japanese Utility Model Publication No. 55-116523

  However, in the configuration disclosed in Patent Document 1, the cleaning / disinfecting apparatus is provided with a small cleaning tank for cleaning the tip, a dedicated ultrasonic generator and a cleaning brush for cleaning the tip, In addition to complicating the configuration of the cleaning / disinfecting apparatus, there are problems that the manufacturing cost of the cleaning / disinfecting apparatus increases.

  Further, as described above, with the cleaning brush, it is difficult to remove the dirt adhering to the complicated part of the tip part. The same applies to Patent Document 2.

  Further, even if ultrasonic cleaning is performed in addition to brush cleaning, it is not certain whether dirt attached to complicated parts in the tip part can be reliably removed.

  Furthermore, in patent document 2, since an operator must insert / extract an insertion part with respect to the washing | cleaning tool main body, as above-mentioned, there also exists a problem that a cleaning degree differs for every operator. The above is not limited to the endoscope, and the same applies to the case where the distal end portion of another medical instrument such as a treatment instrument is washed.

  An object of the present invention is made in view of the above circumstances, and is to provide a medical instrument tip cleaning unit that can easily and reliably clean only the tip of a medical instrument.

  In order to achieve the above object, a medical instrument distal end cleaning unit according to the present invention is a medical instrument distal end cleaning unit that cleans the distal end of an insertion section that is inserted into a body cavity of a medical instrument, wherein the distal end section is inserted and removed. And a case member into which the tip portion having an opening formed on one end side and the other end side facing the one end side is inserted, and the opening portion on the one end side of the case member An insertion port at the distal end, a thin film portion provided to close the opening on the other end side at the other end side of the case member, and the insertion port with respect to the thin film portion in the insertion / extraction direction Is provided on the opposite side, the chemical solution is stored therein, and the chemical solution storage case in which the supply port of the chemical solution is blocked by the thin film portion, and the chemical solution storage case is provided in the insertion / extraction direction ,Previous When the chemical solution storage case is compressed with respect to the thin film portion, the thin film portion is pierced through the supply port, and the chemical solution in the chemical solution storage case is supplied into the case member and inserted into the case member And a projecting portion for immersing the tip portion in the case member in the chemical solution.

  ADVANTAGE OF THE INVENTION According to this invention, the medical device front-end | tip part washing | cleaning unit which can wash | clean only the front-end | tip part of a medical device simply and reliably can be provided.

  Embodiments of the present invention will be described below with reference to the drawings. Hereinafter, the medical instrument will be described using an endoscope as an example.

(First embodiment)
FIG. 1 is a cross-sectional view of the medical instrument tip cleaning unit of the present embodiment.
As shown in FIG. 1, a medical instrument distal end cleaning unit (hereinafter simply referred to as a cleaning unit) 1 includes a case member 2 and a chemical solution storage case 4. It is configured as a disposable unit that is discarded every time the distal end portion 101 of the insertion portion 102 is cleaned.

  The case member 2 is such that when the distal end portion 101 of the insertion portion 102 of the endoscope 100 is cleaned, the distal end portion 101 is inserted into the interior 2i along the insertion / extraction direction S. For example, stainless steel having chemical resistance In addition, an opening 2a serving as an insertion port of the tip 101 is formed on one end side along the insertion / extraction direction S from plastic or the like, and an opening 2b is also formed on the other end side along the insertion / extraction direction S. It is formed in a long and narrow cylinder shape.

  On the inner periphery of the opening 2b of the case member 2, there is provided a ring-like locked portion 6 in which a locking portion 5k of a protrusion 5 to be described later of the chemical solution storage case 4 is locked. A partition thin film 3, which is a thin film portion made of a chemical-resistant material such as polyethylene, is provided in the opening of the stop portion 6 so as to close the opening portion 2 b. . In addition, the to-be-latched part 6 is formed from the material which has chemical resistance, for example, stainless steel or a plastic.

  When the tip 101 is inserted into the inside 2i of the case member 2 at the inner periphery of the opening 2a of the case member 2, the tip 101 is held in contact with the outer periphery of the tip 101, and the case member 2 When the inside 2i is liquid-tight and the chemical storage case is compressed by the method described later, air A (see FIG. 3) in the inside 2i is discharged out of the case member 2, for example, with chemical resistance formed from rubber. A seal valve 7 that is a seal member is provided.

  The chemical solution storage case 4 is provided on the side opposite to the opening 2a (hereinafter referred to as the bottom side) with respect to the partition thin film 3 of the case member 2 and is compressed in the insertion / extraction direction S along the insertion / extraction direction S. The main part is composed of a flexible and flexible member, for example, a bellows member 4j made of rubber, and a push-in plate 4t that closes the opening on the bottom side of the bellows member 4j. The push-in plate 4t is formed from a chemical-resistant material such as plastic or stainless steel, and the bellows member 4j is formed from a chemical-resistant material such as silicon rubber.

  The bellows member 4j is configured to be compressed along the insertion / extraction direction S when the chemical solution storage case 4 is compressed along the insertion / extraction direction S with respect to the partition thin film 3.

  A cleaning liquid M, which is a chemical liquid such as an alkaline detergent or an enzyme detergent, is stored in the inside 4i of the chemical liquid storage case 4. Further, the supply port 4 k on the partition thin film 3 side of the chemical liquid storage case 4 is closed by the thin film 3. As an alkaline detergent, it is known that an alkaline detergent having a higher PH value has a higher cleaning effect.

  Furthermore, for example, two protrusions 5 are provided on the push-in plate 4t in the inside 4i of the chemical solution storage case 4 so as to stand along the insertion / extraction direction S toward the supply port 4k. The number of the protrusions 5 is not limited to two. Each protrusion 5 is also formed of a material having chemical resistance such as plastic or stainless steel.

  Each protrusion 5 has the distal end 101 of the endoscope 100 inserted into the interior 2 i of the case member 2, and the chemical storage case 4 and the bellows member 4 j are folded along the insertion / extraction direction S with respect to the partition thin film 3. When compressed, the partition thin film 3 is pierced through the supply port 4k, and the cleaning liquid M stored in the inside 4i of the chemical solution storage case 4 is supplied to the inside 2i of the case member 2, and the tip portion 101 is supplied to the case member. 2 is immersed in the cleaning liquid M.

  The tip of each projection 5 on the side of the supply port 4k is formed in a bowl shape, and the chemical solution storage case 4 along the insertion / extraction direction S with respect to the partition thin film 3 is formed at the tip of each projection 5. However, when the bellows member 4j is folded and compressed, and the partition thin film 3 is broken by the protrusions 5, the bellows member 4j is locked to the locked portion 6 of the case member 2 to maintain the compressed state of the chemical solution storage case 4. A locking portion 5k is formed.

  Next, the effect | action of this Embodiment comprised in this way is demonstrated using FIG. 2, FIG. 2 is a cross-sectional view of the cleaning unit showing a state in which the distal end portion of the insertion portion of the endoscope is inserted into the case member of FIG. 1, and FIG. FIG. 5 is a cross-sectional view of the cleaning unit showing a state in which the cleaning liquid in the chemical solution storage case is supplied into the case member after being compressed in the insertion / extraction direction and the partition thin film is broken by the protrusion.

  First, when cleaning the distal end portion 101 of the insertion portion 102 of the used endoscope 100, the distal end portion 101 is inserted into the inside 2i of the case member 2 of the cleaning unit 1, as shown in FIG. .

  At this time, the seal valve 7 provided in the opening 2a is brought into contact with the outer peripheral surface of the tip 101, so that the tip 101 is held by the case member 2 and the interior 2i of the case member 2 is liquid. It becomes dense.

  Next, as shown in FIG. 3, the pushing plate 4 t is gripped by the operator, and the chemical solution storage case 4 is compressed along the insertion / extraction direction S so that the bellows member 4 j is folded against the partition thin film 3.

  As a result, the partition thin film 3 is pierced by the projections 5 provided in the interior 4i of the chemical solution storage case 4, so that the cleaning liquid M stored in the interior 4i is supplied to the interior 2i of the case member 2. . Further, the air A accumulated in the inside 2 i of the case member 2 is discharged outside the case member 2 through the seal valve 7 with the pressure of the cleaning liquid M as the cleaning liquid M is supplied.

  At this time, the locking portion 5k provided in each protrusion 5 is locked to the locked portion 6 provided in the opening 2b, so that the compressed state of the drug solution storage case 4 is maintained.

  Thereafter, the tip 101 is immersed in the cleaning liquid M in the interior 2i of the case member 2 for a set time, so that the tip 101 can be reliably contaminated, for example, to a place where the treatment instrument raising base and the water supply nozzle are complicated. To be washed.

  This is because the cleaning liquid M uses a cleaning liquid having a higher cleaning effect than the cleaning liquid normally used for cleaning and disinfecting equipment, such as alkaline detergents and enzyme-based detergents. This is because the protein that can be chemically removed, specifically, the protein that is the main component of the soil is more easily decomposed.

  Note that the distal end portion 101 is usually made of a material having chemical resistance, for example, hard plastic or stainless steel, and is made of a material having higher chemical resistance than other parts of the endoscope 100. Even if the tip 101 is immersed in a cleaning solution having a high cleaning effect, the tip 101 does not deteriorate.

  After completion of the cleaning of the tip portion 101, the tip portion 101 is removed from the inside 2i of the case member 2, and after the cleaning liquid M in the inside 2i is processed, the cleaning unit 1 is discarded. At this time, as described above, since the medicinal solution storage case 4 is compressed by folding the bellows member 4j, the operator can easily recognize from the appearance that the cleaning unit 1 has been used.

  After cleaning the distal end portion 101, the endoscope 100 is cleaned and disinfected in the cleaning / disinfecting apparatus, or after the site of the insertion portion 102 and the operation portion other than the distal end portion 101 are wiped off, It is immersed in and disinfected.

  As described above, in the present embodiment, for cleaning the distal end portion 101, the distal end portion 101 is inserted into the inside 2 i of the case member 2 of the cleaning unit 1, and the chemical solution storage case 4 is compressed against the partition thin film 3. Accordingly, the partition thin film 3 is pierced by the protrusion 5 and the cleaning liquid M in the chemical solution storage case 4 is supplied to the inside 2i of the case member 2, so that the tip 101 is immersed in the cleaning liquid M in the inside 2i. Indicated. In addition, as the cleaning liquid M, alkaline detergents, enzyme detergents, and the like are used.

  According to this, the operator can cleanly clean the tip portion 101 only by inserting the tip portion 101 into the inside 2i of the case member 2, compressing the chemical solution storage case 4, and leaving it for a predetermined time. Therefore, it is possible to provide the cleaning unit 1 capable of cleaning only the distal end portion 101 of the insertion portion 102 of the endoscope 100 easily and reliably.

  Further, since the operator does not come into contact with the cleaning liquid M when cleaning the tip portion 101, it is possible to clean the tip portion 101 while ensuring safety.

  Furthermore, since it is not necessary to immerse the entire endoscope 100 in the cleaning liquid M in order to clean the distal end portion 101, a portion other than the distal end portion 101 of the insertion portion 102 is not deteriorated by the cleaning liquid M. The amount of the cleaning agent used for the cleaning liquid M can be reduced as compared with the prior art.

  In addition, since the cleaning unit 1 is discarded after the cleaning of the distal end portion 101 once, the dirty cleaning liquid M after cleaning the distal end portion 101 comes into contact with other parts of the endoscope 100. Can be prevented.

(Second Embodiment)
FIG. 4 is a cross-sectional view of the cleaning unit of the present embodiment.
The configuration of the cleaning unit of the second embodiment is further provided with a heating unit on the bottom side of the chemical solution storage case as compared with the cleaning unit of the first embodiment shown in FIGS. Is different. Therefore, only this difference will be described, the same reference numerals are given to the same components as those in the first embodiment, and the description thereof will be omitted.

  As shown in FIG. 4, in the cleaning unit 50 in the present embodiment, a heating unit 10 is provided on the bottom side of the chemical solution storage case 4.

  The heating unit 10 is compressible in the insertion / extraction direction S along the insertion / extraction direction S, and has an elastic and flexible member, for example, a bellows member 10j formed of rubber, and a bottom portion of the bellows member 10j. The main part is comprised from the pushing board 10t which block | closes the opening of the side. The push-in plate 10t is formed from a chemical-resistant material such as plastic or stainless steel, and the bellows member 10j is formed from a chemical-resistant material such as silicon rubber.

  Further, in the inside 10i of the heating unit 10, a liquid storage bag 11 in which a liquid W such as water is stored is fixed to the bottom of the push-in plate 4t, and a liquid reservoir is stored in the bottom of the push-in plate 4t. A protrusion 12 that protrudes toward the bottom and is immersed in the liquid W inside the bag 11 is provided.

  Furthermore, in the inside 10 i of the heating unit 10, a plurality of limes 13 are provided on the pushing plate 10 t.

  Next, the operation of the embodiment configured as described above will be described with reference to FIG. FIG. 5 is a partial cross-sectional view of the cleaning unit showing a state where the heating unit is compressed with respect to the chemical solution storage case of FIG. 4.

  First, as shown in FIG. 5, the pushing plate 10 t is gripped by the operator, and the heating unit 10 is compressed along the insertion / extraction direction S so that the bellows member 10 j is folded against the chemical solution storage case 4. .

  Thereafter, the liquid storage bag 11 is broken by the protrusion 12 provided in the liquid storage bag 11, whereby the liquid W in the liquid storage bag 11 is supplied to the inside 10 i of the heating unit 10 and is supplied to the lime 13. Supplied.

  As a result, the lime 13 generates heat. Thereafter, the heat H generated from the lime 13 is supplied to the cleaning liquid M stored in the inside 4i of the chemical liquid storage case 4 via the push-in plate 4t, whereby the cleaning liquid M is heated.

  Here, the cleaning liquid M is heated only when, for example, when the cleaning liquid M is an enzyme detergent, the enzyme detergent is most activated at 40 ° C to 60 ° C. This is because a good cleaning effect cannot be exhibited. The process after heating the cleaning liquid M is the same as that in the first embodiment described above.

  Thus, in this Embodiment, it showed that the washing | cleaning unit 50 was equipped with the heating unit 10 in the bottom part side of the chemical | medical solution storage case 4. FIG.

  According to this, the heating unit 10 is compressed with respect to the chemical solution storage case 4, the liquid storage bag 11 is broken by the protrusion 12, and the liquid W is supplied to the lime 13 in the heating unit 10. Since the cleaning liquid M in the chemical liquid storage case 4 is heated by the heat H generated by this, the cleaning liquid M can be sufficiently heated up to a temperature at which the cleaning effect is exhibited. Other effects are the same as those of the first embodiment described above. Further, the configuration of the heating unit for heating the cleaning liquid M is not limited to the above-described configuration. For example, the cleaning liquid M may be heated by providing a heater on the bottom side of the chemical liquid storage case 4.

Hereinafter, modifications will be described.
In the present embodiment, the medical instrument has been described using the endoscope 100 as an example. However, the present invention is not limited thereto, and the present embodiment may be applied to other medical instruments such as a treatment instrument. Of course.

  Further, in the present embodiment, the chemical liquid is shown taking the cleaning liquid as an example, but it is needless to say that the chemical liquid may be a disinfecting liquid.

  By the way, when preliminarily cleaning the distal end portion of the endoscope using the cleaning brush, as described above, the dirt attached to the intricate portions of the air supply conduit and the treatment instrument raising base can be obtained only by scrubbing with the cleaning brush. There was a problem that it was difficult to remove.

  Therefore, FIG. 6 shows a configuration that can sufficiently remove the dirt at the tip portion even if a cleaning brush is used. FIG. 6 is a view showing a cleaning liquid supply unit that supplies a cleaning liquid to the cleaning brush together with the front end side of the cleaning brush.

  As shown in FIG. 6, the cleaning brush 20 has a brush portion 21 on the distal end side and a base portion 22 on the proximal end side. In addition, the protrusion part of the nozzle | cap | die part 22 is formed in bowl shape.

  Further, inside the cleaning brush 20, there is formed a cleaning liquid supply conduit 20 k having one end opened to the base portion 22 and the other end opened to the brush portion 21.

  Furthermore, a disposable cleaning liquid supply unit 30 in which the cleaning port M is stored in the interior 30i, in which the supply port 30k is closed by the thin film 31, can be mounted on the base part 22.

  According to such a configuration, when the cleaning liquid supply unit 30 is attached to the base part 22, the tip of the base part 22 breaks through the thin film 31 of the cleaning liquid supply unit 30, whereby the cleaning liquid M in the cleaning liquid supply unit 30 is supplied. It is supplied to the brush portion 21 via the mouth 30k and the cleaning liquid supply pipe 20k.

  As a result, the operator can scrub the tip part with the cleaning liquid M with the brush part 21, so that the dirt that could not be removed only with the brush part 21 can be efficiently removed by supplying the cleaning liquid M. it can.

Sectional drawing of the medical device front-end | tip part washing | cleaning unit of 1st Embodiment. Sectional drawing of the washing | cleaning unit which shows the state by which the front-end | tip part of the insertion part of an endoscope was inserted in the inside of the case member of FIG. 2 is a cross-sectional view of the cleaning unit showing a state in which the chemical liquid storage case of FIG. 2 is compressed in the insertion / extraction direction with respect to the partition thin film, the partition thin film is broken by the protrusion, and the cleaning liquid in the chemical liquid storage case is supplied into the case member. . Sectional drawing of the washing | cleaning unit of 2nd Embodiment. The fragmentary sectional view of the washing | cleaning unit which shows the state by which the heating unit was compressed with respect to the chemical | medical solution storage case of FIG. The figure which shows the cleaning liquid supply unit which supplies a cleaning liquid to a cleaning brush with the front end side of a cleaning brush.

Explanation of symbols

1. Cleaning unit (medical instrument tip cleaning unit)
2 ... case member 2a ... one end side opening (insertion slot)
2b ... Opening on the other end side 2i ... Inside the case member 3 ... Partition thin film (thin film portion)
DESCRIPTION OF SYMBOLS 4 ... Chemical solution storage case 4k ... Supply port 4i ... Chemical solution storage case inside 4j ... Bellows member 5 ... Projection part 5k ... Locking part 6 ... Locked part 7 ... Seal valve (seal member)
10 ... Warming unit 50 ... Cleaning unit (medical instrument tip cleaning unit)
100: Endoscope (medical instrument)
101 ... tip part 102 ... insertion part M ... chemical solution S ... insertion / extraction direction

Claims (5)

A medical instrument tip cleaning unit that cleans the tip of an insertion part that is inserted into a body cavity of a medical instrument,
A case member into which the tip part having an opening formed on one end side and the other end side facing the one end side is inserted along the insertion / extraction direction of the tip part,
An insertion port of the tip portion configured in the opening on the one end side of the case member;
On the other end side of the case member, a thin film portion provided so as to close the opening on the other end side;
In the insertion / extraction direction, a chemical solution storage case provided on the opposite side to the insertion port with respect to the thin film portion, in which the chemical solution is stored, and the supply port of the chemical solution is blocked by the thin film portion,
In the insertion / extraction direction provided in the chemical solution storage case, when the chemical solution storage case is compressed with respect to the thin film portion, the thin film portion is pierced through the supply port, and the chemical solution storage case A protrusion for supplying a chemical solution into the case member and immersing the tip portion inserted into the case member in the chemical solution in the case member;
A medical instrument tip cleaning unit comprising:   When the tip is inserted into the case member into the inner periphery of the opening on the one end side of the case member, the case member contacts the outer periphery of the tip and holds the tip. The medical device tip cleaning unit according to claim 1, further comprising a seal member for liquid-tightening the inside of the member. A locking portion formed on the protrusion,
The locking portion of the protrusion when the thin film portion is held by the protrusion and is held at the inner peripheral portion of the opening on the other end side of the case member. Is locked, the locked portion that maintains the compressed state of the chemical solution storage case, and
The medical device tip cleaning unit according to claim 1, further comprising:   The medical device distal end according to any one of claims 1 to 3, wherein the medical solution storage case includes an elastic and flexible member that is compressible in the insertion / extraction direction. Cleaning unit.   5. The medical instrument distal end cleaning unit according to claim 1, further comprising a heating unit that heats the chemical stored in the chemical storage case. 6.

Images