JP2005296092A - Catheter washing device, catheter washing method, and catheter washing wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably remove adhered substances from an inner wall surface of a catheter by a simple structure. <P>SOLUTION: The rear end part of a wire 1 is connected to an ultrasonic oscillator 8, and the front end part 11 of the wire 1 is inserted in a catheter holder 3 through a catheter attachment part 31. Then, a rubber stopper 34 is attached to the catheter attachment part 31. A washing liquid 4 is supplied to the catheter holder 3 through a washing liquid introducing part 33, and the wire 1 is fed in the catheter 2. The wire 1 is vertically vibrated by the ultrasonic oscillator 8. As a result, vibrational energy is delivered to the entire catheter 2, and the adhering substances are released and removed from the inner wall surface 2a of the catheter 2 and are washed away from the catheter 2 with the washing liquid 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a catheter cleaning device and a cleaning method for cleaning an inner wall surface of a catheter, and a catheter cleaning wire suitable for catheter cleaning.

  Conventionally, a technique for removing foreign substances from a catheter that is frequently used in a medical field using a wire has been proposed (see, for example, Patent Document 1). In the invention described in Patent Document 1, for example, a wire having a diameter of 0.2 mm is used. This wire is a relatively rigid thin wire, which is formed of any one of metal, polymer material, and other suitable materials, and its tip is rounded. This prevents the wire from damaging the inner wall surface of the catheter. Then, the wire is inserted into the catheter, and the foreign matter (the object that is blocking the catheter) existing in the catheter is mechanically broken and removed. Simultaneously with the wire insertion, a cleaning solution is supplied to the catheter to wash away the broken pieces from the catheter.

  As another approach, a technique for inserting an ultrasonic transducer into a catheter has been proposed (see, for example, Patent Document 2). In the invention described in Patent Document 2, an ultrasonic vibrator is inserted into a conduit (corresponding to the “catheter” of the present invention) of a medical device to which a cleaning liquid is supplied, and the ultrasonic vibrator is superposed on the cleaning liquid. Applying sonic vibration. By applying ultrasonic vibration to the cleaning liquid in this way, a so-called cavitation phenomenon occurs, thereby peeling off the deposits adhering to the inner wall surface of the catheter.

JP-A-7-255854 (paragraph number [0034], FIG. 9) JP 2002-112963 A (page 7, FIG. 2)

  The invention described in the above-mentioned Patent Document 1 aims to eliminate the blocking of the catheter by mechanically crushing foreign matter with a wire, and effectively removes deposits adhering to the inner wall surface of the catheter. It ’s difficult. In Patent Document 1, an ultrasonic source is disposed in a cleaning liquid supply means such as a syringe or a syringe for supplying a cleaning liquid, and ultrasonic vibration is applied to the cleaning liquid in the catheter. Due to the application of sonic vibration, it was difficult to effectively remove deposits adhering to the inner wall surface of the catheter.

  On the other hand, in the invention described in Patent Document 2, since the ultrasonic source, that is, the ultrasonic transducer is directly inserted into the catheter, the deposits attached to the inner wall surface of the catheter can be reliably removed. . However, in order to insert the ultrasonic transducer into the catheter, the lead electrically connected to the ultrasonic transducer must also be inserted into the catheter at the same time, and the complexity of the apparatus cannot be avoided. It becomes a main factor of increase in apparatus cost. Further, only the portion of the inner wall surface of the catheter facing the ultrasonic transducer can be removed, leaving much room for improvement in terms of work efficiency. Furthermore, since the catheter is a medical instrument, the following considerations are essential. In other words, from the viewpoint of preventing infection, it is desirable to adopt a so-called disposable method for the device that comes into contact with the catheter, but in this case, since electronic components such as ultrasonic transducers and leads become disposable components, the cost of running costs is reduced. It has become a big problem.

  This invention is made | formed in view of the said subject, and makes it the 1st objective to provide the technique which can remove a deposit | attachment reliably from the inner wall face of a catheter with a simple structure.

  The second object of the present invention is to reduce the running cost required for catheter cleaning.

  The present invention is a catheter cleaning device for cleaning the inner wall surface of a catheter, and in order to achieve the first object, the vibration means is connected to the wire inserted into the catheter, and the vibration means is operated by the vibration driving means. This causes the wire to vibrate longitudinally to remove the deposits attached to the inner wall surface of the catheter from the inner wall surface.

  The present invention is also a catheter cleaning method for cleaning an inner wall surface of a catheter, and in order to achieve the first object, an insertion step of inserting a wire into the catheter, and after or after the insertion step are executed. However, there is a removal step of removing the adhering matter adhering to the inner wall surface of the catheter by longitudinally vibrating the wire.

  In the invention thus configured (catheter cleaning apparatus and cleaning method), longitudinal vibration is applied to the wire inserted into the catheter. For this reason, vibration energy is generated from the entire wire and applied to the inner wall surface of the catheter. Then, the adhering substance is released and removed from the inner wall surface of the catheter by the vibration energy.

  Here, the vibration means may be provided separately from the catheter, and by adopting such an arrangement, the degree of freedom of design of the vibration means can be increased as compared with the conventional device. Further, since the vibration means is arranged outside the catheter, the vibration means, which has been a big problem in the invention described in Patent Document 2, is not contaminated. As a result, the vibration means can be used repeatedly, which is advantageous in terms of running cost compared to the conventional apparatus.

  Moreover, in the apparatus which performs the washing process of the catheter using the wire, a wire moving unit may be provided between the catheter and the vibrating unit, and the wire may be moved in the longitudinal direction of the wire by the wire moving unit. . By providing the wire moving means, the wire can be efficiently fed and pulled out from the catheter, and the working efficiency can be improved.

  Further, the wire moving means may be configured to move the wire in the longitudinal direction by a half wavelength or more of the longitudinal vibration while the wire is longitudinally vibrating in the catheter. By moving the longitudinally vibrating wire at least half the wavelength of the longitudinal vibration in this way, the vibration energy from the wire can be made uniform in the longitudinal direction, and the cleaning process in the longitudinal direction of the catheter can be made more uniform. Can be aimed at.

  Moreover, in order to make handling of a wire easy, you may make it provide the following structures further. That is, from the wire accommodating means by operating the wire accommodating means in accordance with the movement of the wire by the wire moving means, and the wire accommodating means for accommodating the intermediate portion of the wire located between the wire moving means and the vibrating means. You may make it further provide the accommodation drive means which sends out the wire intermediate part of this, and accommodates the wire intermediate part to a wire accommodating means.

  Another aspect of the catheter cleaning apparatus according to the present invention is a catheter cleaning apparatus for cleaning the inner wall surface of the catheter by inserting the distal end side of the wire into the catheter, and in order to achieve the first object, the wire A wire mounting portion connectable to the rear end portion of the wire, and a vibration means for vibrating the wire connected to the wire mounting portion; and a vibration driving means for operating the vibration means to vibrate the wire. ing.

  In the invention configured as described above, with the distal end side of the wire inserted into the catheter, the wire is connected to the wire mounting portion of the vibration means, and the wire vibrates by the operation of the vibration means. For this reason, vibration energy is generated from the entire wire and applied to the inner wall surface of the catheter. Then, the adhering substance is released and removed from the inner wall surface of the catheter by the vibration energy. In the present invention, since the vibration means and the vibration drive means are integrally provided, the apparatus is compact and has excellent handling properties. As a result, the cleaning operation of the catheter can be performed flexibly with this device.

  Further, in the catheter cleaning device configured as described above, while operating the vibration means while inserting the wire into the catheter, when the entire device is moved in the longitudinal direction of the wire by a half wavelength or more of the wire vibration, The vibration energy from the wire can be made uniform in the longitudinal direction. In this way, the cleaning process in the length direction of the catheter can be made more uniform.

  By the way, as described above, only the wire or the entire apparatus may be moved in the longitudinal direction in order to make the cleaning process uniform, but vibration frequency control may be performed instead of movement control. That is, by changing the vibration frequency of the wire vibrating in the catheter, the propagation mode of the vibration energy from the wire to the inner wall surface of the catheter may be changed to make the cleaning process uniform.

  Moreover, you may comprise so that a wire can be attached or detached with respect to a vibration means. In this case, the wire used for the cleaning process can be removed from the vibration means and replaced with a new wire. That is, the wire can be used in a disposable manner, and infection can be reliably prevented. And since a disposable instrument becomes only a wire, a running cost can be reduced significantly.

  Here, in order to reduce the running cost, the rear end portion of the catheter is detachably formed with respect to the vibration means provided in the above-described catheter cleaning device, and the distal end side of the catheter can be inserted into the catheter. It is desirable to use a cleaning wire. Further, by further attaching a wire guide to the distal end portion of the wire, it is possible to reliably prevent the wire from being damaged to the catheter and to prevent the inner wall surface of the catheter from being damaged.

  Further, the deposit removed from the inner wall surface of the catheter as described above may be washed away by supplying a cleaning liquid to the catheter. As a result, deposits can be reliably removed from the catheter.

  In the invention configured as described above, since the wire inserted into the catheter is vibrated, vibration energy from the wire is applied to the inner wall surface of the catheter to remove the deposits from the inner wall surface of the catheter. With this configuration, the deposits can be reliably removed from the inner wall surface of the catheter.

  FIG. 1 is a view showing an embodiment of a catheter cleaning apparatus according to the present invention. This catheter cleaning device is a device for cleaning the inner wall surface of the catheter 2 by inserting the distal end side of the catheter cleaning wire 1 into the catheter 2. In this apparatus, a catheter holder 3 is provided to hold the catheter 2. The catheter holder 3 includes a catheter attachment part 31 for attaching the catheter 2, a wire introduction part 32 for introducing the wire 1, and a cleaning liquid introduction part 33 for introducing a cleaning liquid. Further, inside the holder 3, a guide part is provided for guiding the cleaning liquid 4 supplied from a cleaning liquid supply unit (not shown) via the cleaning liquid introduction part 33 to the catheter mounting part 31. For this reason, when the cleaning liquid 4 is supplied from the cleaning liquid supply section, the cleaning liquid 4 is supplied to the catheter 2 through the guide section and the catheter attachment section 31. Note that the type of the cleaning liquid 4 may be appropriately selected according to the usage state of the catheter 2. For example, lipid-containing and protease-containing solutions), sterile water, distilled water, RO water, ethyl alcohol-containing water, and physiological saline can be used.

  Further, the wire 1 can be inserted into the catheter holder 3 through the wire introduction part 32. A wire guide 11 is attached to the tip of the wire 1. Further, a wire moving mechanism 5 which will be described in detail later is engaged with an intermediate portion of the wire 1 so that the wire 1 can be moved forward and backward in the longitudinal direction X thereof. Therefore, when the wire moving mechanism 5 is operated and the wire 1 is sent out in the longitudinal direction (+ X), the distal end portion 11 of the wire 1 is sent into the catheter 2 through the catheter attachment portion 31. At this time, the wire guide 11 reliably guides the wire 1 to the catheter 2 along the catheter attachment portion 31, and the wire 1 moves along the inner wall surface of the catheter 2 in the catheter 2. The wire 1 can be reliably fed while preventing damage to the inner wall surface. Conversely, when the wire 1 is fed back in the longitudinal direction (−X) by the wire moving mechanism 5, the wire 1 passes through the catheter attachment portion 31 and the catheter 2 is pulled out. Moreover, the movement amount of the wire 1 by the wire moving mechanism 5 can be adjusted as needed. In addition, the code | symbol 34 in the figure is a rubber stopper which plugs up the wire introduction part 32, and has a function which prevents that the washing | cleaning liquid supplied to the catheter holder 3 and the catheter 2 springs out from the wire introduction part 32. FIG.

  FIG. 2 is a diagram showing a wire moving mechanism. Hereinafter, the configuration of the wire moving mechanism 5 will be described in detail with reference to FIGS. 1 and 2. The wire moving mechanism 5 includes an upper block 51 and a lower block 52 arranged in the vertical direction. The lower block 52 is attached with a motor that can rotate forward and backward, for example, a servo motor 53. A lower feed roller 55 is fixed to the rotating shaft 54 of the servo motor 53 and is driven to rotate about the rotating shaft 54 by the operation of the servo motor 53. A rubber lining 56 is applied to the outer peripheral portion of the tip of the lower feed roller 55 to prevent attenuation of ultrasonic vibration, and a groove 561 having a shape that can be engaged with the wire 1 is formed in the rubber lining 56. Yes. Further, as shown in FIG. 1, a wire guide 57 is attached to the lower block 52 at the front and rear positions of the lower feed roller 55 in the feed direction X of the wire 1 (left and right positions in the figure).

  On the other hand, one end of an upper roller lever 58 is attached to the upper block 51, and a fixed shaft 59 is fixed to the other end of the upper roller lever 58. An upper roller 60 is attached to the fixed shaft 59 via a bearing so as to face the lower feed roller 55, and the upper roller 60 is rotatable with respect to the fixed shaft 59. Further, a rubber lining 61 is applied to the outer peripheral portion of the tip of the upper roller 60 to prevent attenuation of ultrasonic vibration, and the upper roller lever 58 is urged downward by the urging force of the upper roller pressing spring 62. As a result, the rubber lining 61 is pressed against the rubber lining 56 of the lower feed roller 55. As a result, the wire 1 can be sandwiched between the lower feed roller 55 and the upper roller 60 from above and below. A gear 63 is fixed to the lower feed roller 55 and rotates integrally with the lower feed roller 55 in accordance with the operation of the servo motor 53, and the rotational driving force is transmitted to the upper roller 60. As a result, the upper roller 60 rotates in the opposite direction in synchronization with the lower feed roller 55, and the wire 1 is conveyed in a direction, a feed speed, and a feed force according to the operating state of the servo motor 53. Similar to the lower feed roller 55, a wire guide 64 is attached to the upper block 51 at the front and rear positions (left and right positions in the figure) of the upper roller 60 in the feed direction X of the wire 1.

  As shown in FIG. 2, the upper block 51 to which the upper roller 60 and the wire guide 64 are attached is provided so as to be movable up and down along the slide guide 65 at a position above the lower block 52. The upper block 51 is provided with a release lever 66 having a built-in cam mechanism. The operator operates the release lever 66 in a predetermined direction so that the upper block 51 rises along the slide guide 65. As a result, the upper roller 60 and the wire guide 64 are separated upward from the lower feed roller 55 and the wire guide 57 to facilitate the attachment and detachment work of the wire 1 with respect to the wire moving mechanism 5.

  FIG. 3 is a schematic perspective view of the wire drum mechanism. The wire drum mechanism 7 is a mechanism for winding up an intermediate portion of the wire 1, and is attached to the drum portion 71 via a bearing 72 with respect to the drum portion 71 around which the wire 1 is wound. And a torsion spring portion 73. A torsion spring (not shown) is accommodated in the torsion spring portion 73, and a torsion biasing force of the torsion spring is applied to the drum portion 71 to act in a direction in which the intermediate portion of the wire 1 is wound (arrow direction P in FIG. 3). doing. Thus, in this embodiment, the drum part 71 and the torsion spring part 73 function as the “wire accommodation part” and “accommodation drive means” of the present invention, respectively, and the wire 1 can be accommodated in a compact manner. The handling of 1 can be made easy.

  Further, an ultrasonic transducer 8 such as a Langevin transducer is connected to the rear end portion of the wire 1 as “oscillating means” of the present invention. In this embodiment, the ultrasonic transducer 8 is fixed to the side surface of the torsion spring portion 73 by a fixing bracket 81. Moreover, the front-end | tip part 82 of the ultrasonic transducer | vibrator 8 has a horn shape, and the rear-end part of the wire 1 can be attached or detached freely. That is, as shown in FIG. 4, a male screw portion 12 is formed at the rear end portion of the wire 1, while a female screw portion (not shown) that can be screwed into the male screw portion 12 at the horn-shaped tip portion 82. Is formed. For this reason, the wire 1 can be easily attached to and detached from the ultrasonic transducer 8, and the wire 1 can be easily exchanged as necessary. As described above, in this embodiment, the horn-shaped tip portion 82 functions as the “wire mounting portion” of the present invention, but the mounting mode of the wire 1 is not limited to the screw method, and various mounting methods. For example, a chuck method or the like can be employed.

  FIG. 4 is a diagram showing an electrical configuration of the catheter cleaning apparatus of FIG. In this catheter cleaning apparatus, an amplifier 91 is provided in the control unit 9 in order to operate the ultrasonic transducer 8 described above. The amplifier 91 is electrically connected to a controller 92 that controls the entire apparatus, and applies an electrical signal to the ultrasonic transducer 8 in accordance with a control command from the controller 92 to operate the ultrasonic transducer 8. The ultrasonic transducer 8 thus operated gives longitudinal vibration to the wire 1. Thus, the amplifier 91 corresponds to the “vibration driving means” of the present invention, and the physical quantity such as the vibration frequency and vibration energy of the wire 1 can be accurately controlled.

  Further, the control unit 9 is provided with a motor drive unit 93 for driving the servo motor 53 of the wire moving mechanism 5, and the servo motor 53 is rotated forward and backward in accordance with the control command of the controller 92 in the longitudinal direction. Control the movement of the wire 1 along X. Thus, the movement amount of the wire 1 can be accurately controlled. In addition, the wire 1 can be efficiently fed and withdrawn from the catheter 2, and the working efficiency can be increased.

  Further, the control unit 9 is provided with a display unit 94 and an operation unit 95 as a man-machine interface.

  Next, a catheter cleaning operation by the catheter cleaning apparatus configured as described above will be described with reference to FIGS. 1 and 5. In this embodiment, as shown in FIG. 1, the catheter 2 that is the object to be cleaned is set in a loop shape in order to save space. Then, a new wire 1 is set on the catheter cleaning device. That is, the wire rear end portion (male screw portion 12) is connected to the horn-shaped front end portion 82 while winding the intermediate portion of the wire 1 around the drum portion 71. Further, the wire 1 pulled out from the drum portion 71 is passed through the wire moving mechanism 5, the distal end portion 11 of the wire 1 is further inserted into the catheter holder 3 via the catheter attachment portion 31, and the rubber plug 34 is inserted into the catheter attachment portion. Attach to 31. Then, by operating the release lever 66, the upper block 51 is lowered along the slide guide 65 and the upper roller 60 and the wire guide 64 are brought into contact with the lower feed roller 55 and the wire guide 57. Thereby, the wire movement by the wire movement mechanism 5 becomes possible. In this embodiment, the cleaning preparation operation so far is a manual operation by an operator. However, a part of these operations may be automatically performed.

  When the cleaning preparation operation is completed as described above and the operator presses the start button (not shown) of the operation unit 95, the controller 92 controls each part of the apparatus according to the cleaning program stored in the memory (not shown) in advance. Then, the following cleaning operation is executed. That is, the cleaning liquid 4 is supplied to the catheter holder 3 through the cleaning liquid introducing portion 33, and the servo motor 53 is operated to move the wire 1 in the feeding direction (+ X) and feed it into the catheter 2. When the distal end portion 11 of the wire 1 reaches the distal end portion of the catheter 2, the operation of the ultrasonic transducer 8 by the amplifier 91 is started. Note that the wire 1 may be fed while operating the ultrasonic transducer 8.

  When the ultrasonic transducer 8 operates in this way, as shown in FIG. 5A, longitudinal vibration of the wire 1 by the ultrasonic transducer 8 is executed, and the vibration energy is given to the entire catheter 2. As a result, deposits are released and removed from the inner wall surface 2 a of the catheter 2 and are washed away from the catheter 2 by the cleaning liquid 4. Further, in this embodiment, while the wire 1 is longitudinally vibrating in the catheter 2, the wire 1 is reciprocated in the longitudinal direction X by a half wavelength or more of the longitudinal vibration. By this wire movement, the longitudinal vibration state of the wire 1 in the catheter 2 is shifted in the longitudinal direction X as shown in FIG. 5B, so that the vibration energy from the wire 1 is made uniform in the longitudinal direction X. The cleaning process in the length direction of the catheter 2 can be made more uniform. Note that, instead of moving the wire 1, even if the vibration frequency is changed as shown in FIG. 5 (c), the same effect (the homogenization of the cleaning process by equalizing the vibration energy) can be obtained. .

  When a predetermined time has elapsed from the start of cleaning, the supply of the cleaning liquid 4 is stopped and the longitudinal vibration of the wire 1 is stopped. Further, the servo motor 53 is rotated in the reverse direction to pull the wire 1 back to the vicinity of the wire introduction part 32 of the catheter holder 3. Thereby, the preparation for replacement of the wire 1 is completed, and the fact is displayed on the display unit 94 to notify the operator. Upon receiving this, the operator removes the rubber stopper 34 and pulls out the used wire 1 from the catheter holder 3, and also removes the wire 1 from the wire moving mechanism 5 and the ultrasonic transducer 8 and discards it in a predetermined recovery unit. When the next cleaning process is required, the above-described series of operations is repeated.

  As described above, according to this embodiment, the wire 1 inserted into the catheter 2 is longitudinally vibrated, so that vibration energy is applied from the entire wire 1 to the inner wall surface 2a of the catheter 2 and the adhering matter is deposited from the inner wall surface 2a of the catheter 2. Therefore, deposits can be reliably removed from the inner wall surface 2a of the catheter 2 with a simple configuration. Moreover, since the deposits can be removed over a wide range at a time, excellent cleaning efficiency can be obtained.

  Further, in this embodiment, since the ultrasonic transducer 8 is disposed at a position separated from the catheter 2, the problem in the invention described in Patent Document 2, that is, contamination of the ultrasonic transducer does not occur at all. Further, the ultrasonic vibrator 8 does not come into contact with the cleaning liquid 4. Accordingly, even when the catheter 2 is repeatedly cleaned, it is not necessary to clean the ultrasonic transducer 8 at all, which is advantageous in terms of running cost compared to the conventional apparatus. Further, the shape and size of the ultrasonic transducer 8 is not restricted as in the conventional apparatus, and has a high degree of freedom in design.

  In order to apply vibration energy from the wire 1 to the inner wall surface 2a of the catheter 2, for example, the wire 1 may be vibrated. However, there are the following differences between longitudinal vibration and lateral vibration. That is, when the wire 1 is caused to vibrate laterally, the inner wall surface 2a of the catheter 2 may be damaged by the wire 1 when the amplitude increases. On the other hand, the catheter 2 can be reliably prevented from being damaged by the cleaning treatment of the catheter 2 by applying longitudinal vibration to the wire 1 as in this embodiment. Therefore, it is more preferable to apply longitudinal vibration to the wire 1 particularly when the tubular catheter 2 is washed.

  In this embodiment, since the cleaning process is homogenized, the wire 1 is reciprocated in the longitudinal direction X while the wire 1 is longitudinally vibrating in the catheter 2. A wire drum mechanism 7 is provided between the wire moving mechanism 5 and the ultrasonic vibrator 8 so that the wire 1 can be wound and fed out in accordance with the movement of the wire 1 using the biasing force of the torsion spring. Therefore, it is possible to prevent the wire 1 from slackening between the wire moving mechanism 5 and the ultrasonic vibrator 8 or an excessive tension from acting on the wire 1.

  Furthermore, in this embodiment, since the wire 1 is detachable with respect to the ultrasonic transducer | vibrator 8, it is possible to replace | exchange the wire 1 easily as needed. And about the wire 1 once used for the washing | cleaning process, since it is made to discard to a collection | recovery part, ie, the wire 1 is used disposable, infection can be prevented reliably. And since a disposable instrument becomes only the wire 1, a running cost can be reduced significantly.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention. For example, in the above embodiment, wire handling mechanisms such as the wire moving mechanism 5 and the wire drum mechanism 7 are provided in order to facilitate handling of the wire 1 and to automate the cleaning operation. Is not an essential component and may be omitted. For example, the ultrasonic transducer 8 and the amplifier 91 are integrally provided, the rear end portion 12 of the wire 1 is attached to the ultrasonic transducer 8, and the distal end side of the wire 1 is inserted into the catheter 2 to perform the cleaning process. May be performed. Since the ultrasonic transducer (vibrating means) 8 and the amplifier (vibration driving means) 91 are integrally provided in this way, the apparatus is compact and has excellent handling properties. As a result, the cleaning operation of the catheter 2 can be performed flexibly by this device.

  Moreover, in the said embodiment, although the catheter 2 is set in loop shape and the washing process is performed, the arrangement | positioning state of the catheter 2 is not limited to this, As long as the bending of the catheter 2 can be prevented. Any arrangement state is possible.

  As described above, in this embodiment, cleaning of a catheter used in an endoscope has been described as an example, but the application target of the present invention can be applied to all catheters used in a medical field.

It is a figure which shows one Embodiment of the catheter washing | cleaning apparatus concerning this invention. It is a figure which shows a wire moving mechanism. It is a schematic perspective view of a wire drum mechanism. It is a figure which shows the electrical structure of the catheter washing | cleaning apparatus of FIG. It is a figure which shows a catheter washing | cleaning operation | movement typically.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... (For catheter washing | cleaning) Wire 2 ... Catheter 2a ... Inner wall surface (of catheter) 4 ... Cleaning liquid 5 ... Wire moving mechanism (wire moving means)
8 ... Ultrasonic vibrator (vibration means)
DESCRIPTION OF SYMBOLS 11 ... Wire guide 12 ... Rear end part (of wire) 71 ... Drum part (wire accommodation means)
73 ... Torsion spring (accommodating drive means)
91 ... Amplifier X ... Longitudinal direction of the wire

Claims (12)

In the catheter cleaning device for cleaning the inner wall surface of the catheter,
A vibrating means is connected to the wire inserted into the catheter, and the vibrating means is operated by the vibration driving means to longitudinally vibrate the wire to remove deposits attached to the inner wall surface of the catheter from the inner wall surface. A catheter cleaning device.   The catheter cleaning apparatus according to claim 1, wherein the vibration unit is provided apart from the catheter.   The catheter cleaning apparatus according to claim 2, further comprising a wire moving unit that is provided between the catheter and the vibrating unit and moves the wire in a longitudinal direction of the wire.   The catheter cleaning device according to claim 3, wherein the wire moving means moves the wire in the longitudinal direction by a half wavelength or more of the longitudinal vibration while the wire is longitudinally vibrating in the catheter. Wire accommodating means for accommodating a wire intermediate portion located between the wire moving means and the vibrating means among the wires;
Accommodating drive for operating the wire accommodating means along with the movement of the wire by the wire moving means to send out the intermediate wire portion from the wire accommodating means and to accommodate the intermediate wire portion in the wire accommodating means. The catheter cleaning device according to claim 3 or 4, further comprising means. In the catheter cleaning device for cleaning the inner wall surface of the catheter by inserting the distal end side of the wire into the catheter,
A vibration means for vibrating the wire connected to the wire mounting portion, having a wire mounting portion connectable to a rear end portion of the wire;
A catheter cleaning apparatus comprising a vibration driving means for operating the vibration means to vibrate the wire.   The catheter cleaning apparatus according to any one of claims 1 to 6, wherein the vibration driving unit changes a vibration frequency of the wire vibrating in the catheter.   The catheter cleaning device according to claim 1, wherein the vibration unit is configured to be detachable from the wire. A catheter cleaning wire suitable for the catheter cleaning device according to any one of claims 1 to 8,
Catheter cleaning, characterized in that a rear end portion thereof is detachably formed with respect to the vibration means provided in the catheter cleaning device, and a distal end side thereof can be inserted into the catheter. Wire.   The catheter cleaning wire according to claim 9, wherein a wire guide is attached to the distal end portion thereof. In the catheter cleaning method for cleaning the inner wall surface of the catheter,
An insertion step of inserting a wire into the catheter;
A catheter comprising: a removal step of removing the adhering matter adhering to the inner wall surface of the catheter by longitudinally vibrating the wire after the insertion step or while executing the insertion step. Cleaning method.   The catheter cleaning method according to claim 11, further comprising a cleaning liquid supply step of supplying a cleaning liquid to the catheter and rinsing the deposits removed from the inner wall surface of the catheter from the catheter with the cleaning liquid.

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