JPWO2020153412A1 - Tube joining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tube joining device having few operating procedures for tube joining. SOLUTION: In the tube joining device 100 according to the present invention, after the end portion of the tube T1 and the end portion of the tube T2 are fused by a heated wafer WF, the fused end portion of the tube T1 and the fused end portion of the tube T2 are fused. It is a tube joining device that replaces and joins the tube T1 and the tube T2, and is configured to be openable and closable with respect to the tube holding portion 23 having the groove portions 231a, 231b, 232a, and 232b capable of holding the tube T1 and the tube T2. The lid portion 22 that exposes the groove portion to the outside in the open state and isolates the groove portion from the outside in the closed state, the sensor 24 that detects that the tubes T1 and T2 are held in the groove portion, and the lid portion are in the closed state. It has a sensor 26 for detecting that the tube has become, and a control unit 90 for controlling the wafer. In the control unit, the sensor 24 detects holding of the tubes T1 and T2 in the groove portion, and the sensor 26 covers the tube. When the closed state of the portion is detected, the transition to the control of the fusing work of the tubes T1 and T2 is started. [Selection diagram] Fig. 1

Description

The present invention relates to a tube joining device.

As a technique for connecting resin tubes and the like, a joining method in which the ends of each resin tube are fused and the fused ends are pressed against each other to be pressure-bonded has been conventionally known. Such a technique is widely used in various industrial fields, and as an example, an attempt is made to apply it to a medical technique such as a peritoneal dialysis method.

In the peritoneal dialysis method, a tube (catheter) implanted in the abdominal cavity of a patient is used to put a predetermined dialysate into the body, and then water and waste products transferred into the dialysate through the peritoneum are taken out of the body. It is a method of excluding.

Since one tube to be joined is implanted in the patient's abdominal cavity, great care must be taken during the joining procedure to ensure that each tube is not contaminated. Patent Document 1 discloses a technique for joining by exchanging the fused ends of two tubes.

Japanese Unexamined Patent Publication No. 2013-146354

In Patent Document 1, the user needs to press the joining button in order to start tube joining. However, the users of the tube joining device are also assumed to be elderly people, and some elderly people have decreased cognitive function and thinking ability. Such a person may mistakenly think that the join button has been pressed even though the join button has not been pressed. In such a case, there is a risk that the user will feel the stress that the tube joining will not be started forever. Therefore, the tube joining device is required to simplify the operation procedure performed by the user before starting the tube fusing operation.

Therefore, an object of the present invention is to provide a tube joining device that simplifies the operation procedure performed by the user before performing the tube fusing operation.

In the tube joining device according to the present invention, which achieves the above object, the end of the first tube and the end of the second tube are fused by a heated cutting member, and then the fused end of the first tube and the second. A tube joining device that replaces and joins the fused ends of tubes, and can be opened and closed with respect to the tube holding portion having a groove that can hold the first tube and the second tube, and the tube holding portion. It is detected that the groove portion is exposed to the outside in the open state and the lid portion that separates the groove portion from the outside in the closed state, and the first tube and the second tube are held in the groove portion. It has a first detection unit, a second detection unit for detecting that the lid portion is closed, and a control unit for controlling the cutting member, and the control unit is the first detection unit. Detects the holding of the first tube and the second tube in the groove portion, and when the second detection portion detects the closed state of the lid portion, the first tube and the second tube are fused. Start the transition to control of work.

According to the tube joining device according to the present invention, control is performed when the first detection unit detects holding of the first tube and the second tube in the groove portion and the second detection unit detects the closed state of the lid portion. The unit initiates the transition to control of the fusing work of the first tube and the second tube. As a result, the user can start tube joining without pressing the joining start button. Therefore, it is possible to simplify the operation procedure performed by the user before the tube is blown, as compared with the case where the joining start button is pressed.

It is a schematic perspective view which shows the state which the lid part is opened in the tube joining apparatus which concerns on one Embodiment of this invention. It is a schematic perspective view which shows the state which the lid part of the tube joining device is closed. It is a schematic perspective view which shows the arrangement example of the component arranged in a housing with the lid part of a tube joining device closed. It is a schematic plan view which shows the state which the lid part of the tube joining device is opened. It is a schematic plan view which shows the state which the 1st tube and the 2nd tube are arranged in the tube joining apparatus shown in FIG. It is a schematic perspective view which shows the clamp part which constitutes a tube joining device. It is a figure which provides the explanation of the 2nd detection part which constitutes the clamp part. It is a figure which provides the explanation of the 1st detection part which constitutes the clamp part, and is the sectional view which shows before setting the 1st tube in a groove part. It is a figure which provides the explanation of the 1st detection part which constitutes the clamp part, and is the sectional view which shows the state which the 1st tube is set in the groove part. FIG. 5 is a cross-sectional view taken along the line 10-10 of FIG. 5 and shows a tube joining device in a state where the lid portion is open. FIG. 5 is a cross-sectional view taken along the line 10-10 of FIG. 5 and shows a tube joining device in a state where the lid portion is closed. It is a block diagram which shows the control system of a tube joining apparatus. It is a figure which shows typically the 1st tube and the 2nd tube which are fused-bonded by the tube joining device. It is a schematic plan view which shows the wafer cassette storage part which constitutes a tube joining apparatus, and has stored the wafer cassette. It is a flowchart which shows the joining operation of a tube joining device. It is a figure which shows each process of the fusing-position exchange work by a tube joining device schematically. It is a figure which shows each process of the fusing-position exchange work by a tube joining device schematically. It is a figure which shows each process of the fusing-position exchange work by a tube joining device schematically. It is a figure which shows each process of the fusing-position exchange work by a tube joining device schematically. It is a figure which shows each process of the joining-removing work by a tube joining device schematically. It is a figure which shows each process of the joining-removing work by a tube joining device schematically. It is a flowchart which concerns on the modification of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

1 to 11 are views for explaining the overall configuration of the tube joining device 1 according to the embodiment of the present invention. FIG. 12 is a diagram for explaining the control system of the tube joining device 1. FIG. 13 is a diagram for explaining the tubes T1 and T2 to be joined by the tube joining device 1. FIG. 14 is a schematic plan view showing a wafer cassette WC mounted on the tube joining device 1. FIG. 15 is a flowchart showing tube joining by the tube joining device 1. 16 to 21 are views for explaining a usage example of the tube joining device 1. In the present specification, the tube T1 corresponds to the first tube and the tube T2 corresponds to the second tube. Further, in the following, the front-rear direction in the tube joining device 1 is referred to as a front-rear direction X, a left-right direction is referred to as a left-right direction Y, and a height direction is referred to as a height direction Z.

As shown in FIG. 13, the tube joining device 1 in the present embodiment includes the end of the tube T1 on the side of the peritoneal dialysate bag T11 and the end of the tube T2 on the side of the peritoneal catheter T26 of the patient (user M) who performs peritoneal dialysis. It is configured as a medical device that fuses and joins parts.

As shown in FIG. 1, the tube joining set S is a wafer cassette including a tube joining device 1 capable of fusing and joining tubes T1 and T2, and a plurality of wafer WFs (corresponding to "cutting members") used for fusing. It has a WC. In the fusing operation of the tubes T1 and T2, as shown in FIGS. 16 to 18, the tubes T1 and T2 are fused by the heated wafer WF in a state where the juxtaposed tubes T1 and T2 are pressed against each other and crushed. .. After that, as shown in FIGS. 19 and 20, the positions of one side of the fused tube T1 and one side of the tube T2 are exchanged, and the tubes T1 and T2 are pressed and joined. Details will be described later.

The tube joining device 1 is outlined with reference to FIG. 1, a housing 10 for accommodating each part of the tube joining device 1, a crushing of the tube T1 and the tube T2 at the time of fusing, and one side of the tube T1 after fusing. It has a clamp portion 20 for replacing one side of the tube T2. The tube joining device 1 has an interlock 30 that locks the clamp portion 20 in a state where the tube T1 and the tube T2 are sandwiched at the time of fusing-joining as shown in FIG. 12, and is inserted into the housing 10 as shown in FIG. It has a storage unit 40 for storing the wafer cassette WC.

As shown in FIG. 12, the tube joining device 1 heats the wafer WF and sends it to the fusing position, the operation unit 60 capable of receiving an instruction to switch the power on-off, and the user M. A notification unit 70 for notifying necessary information is provided. The tube joining device 1 includes a power supply unit 80 capable of supplying electric power to each unit, and a control unit 90 that comprehensively controls the operation of each unit.

In addition, as shown in FIGS. The opposite side is referred to as "fixed side X2". The details will be described below.

As shown in FIGS. 1 and 2, the housing 10 includes an upper portion 11 which is an upper side surface of a substantially hexahedron, and a lower portion 12 which is arranged below the upper portion 11 and constitutes a side surface other than the upper side surface of the substantially hexahedron. It consists of a combination of cases. The upper portion 11 is formed so as to be inclined from the rear to the front as shown in FIG.

As shown in FIG. 4, the upper portion 11 includes inclined surfaces 11g and 11h, a concave portion 11j, and a convex portion 11k.

The inclined surfaces 11g and 11h are inclined so that the rear end side of the upper portion 11 is higher than the front end side. The inclined surface 11h is arranged on the front end side of the inclined surface 11g with the recess 11j interposed therebetween. The inclined surfaces 11g and 11h are configured to be substantially the same surface, but are not limited thereto.

As shown in FIG. 4, the recess 11j is provided adjacent to the inclined surfaces 11g and 11h. The recess 11j is formed so as to be recessed in the height direction Z from a virtual surface in which the inclined surface 11g and the inclined surface 11h are linearly connected. As shown in FIG. 5, a part of the connector T12 of the tube T1 and a part of the tube T2 can be arranged in the recess 11j.

The convex portion 11k is provided so as to project from the concave portion 11j in the height direction Z. A part of the tube T1 can be arranged on the convex portion 11k as shown in FIG.

As shown in FIG. 4 and the like, a display unit 71 for displaying the progress of joining is provided on the front end side of the upper surface of the upper portion 11. Further, on the front end side of the upper portion 11, an illustration or the like indicating the arrangement of the tube T1 and the tube T2 set in the clamp portion 20 can be attached. As a result, the tubes T1 and T2 can be set at appropriate positions without confusing the arrangement positions of the tubes T1 and the tubes T2.

As shown in FIG. 4 and the like, a display unit 72 provided with a notification unit 70, which will be described later, is provided on the rear end side of the upper portion 11. Further, as shown in FIG. 1, a hole 11r into which the clamp portion 20 can be fitted is provided on the upper surface of the upper portion 11.

Further, on the side surface of the upper portion 11, a cassette insertion hole 11c for inserting the wafer cassette WC and an take-out switch 11d for taking out the wafer cassette WC inserted in the housing 10 are provided. If the user M pushes the take-out switch 11d with his / her finger while the wafer cassette WC is inserted through the cassette insertion hole 11c, the wafer cassette WC can be taken out of the housing 10 through the cassette insertion hole 11c.

Further, as shown in FIG. 3, the upper portion 11 has a built-in temperature sensor 11e capable of measuring the environmental temperature around the housing 10. The heating time for the wafer WF to heat the tubes T1 and T2 can be adjusted according to the environmental temperature measured by the temperature sensor 11e.

As shown in FIG. 10, the lower portion 12 includes a flat bottom surface 12a and a leg portion 12b that abuts on a placement place such as a table in the lower portion 12.

The clamp portion 20 holds the tubes T1 and T2 side by side, presses the tubes T1 and T2 against each other at the time of fusing, and after the fusing, the positions of one side of the tube T1 and one side of the tube T2 are exchanged, and one of the tubes T1 and T2. Is pressed against the other in the left-right direction Y.

As shown in FIG. 6, the clamp portion 20 can be opened and closed by relatively approaching and separating from the pedestal 21 protruding from the upper portion 11 fixed to the bottom surface 12a of the housing 10 and the pedestal 21. The configured lid portion 22 is provided. The clamp portion 20 is installed on the pedestal 21, and also has a tube holding portion 23 for holding the tubes T1 and T2 and a sensor 24 (corresponding to the first detection unit) capable of detecting whether or not the tubes T1 and T2 are set. ) And. As shown in FIGS. 6 and 7, the clamp portion 20 opens and closes the tube pressing portion 25 and the lid portion 22 that push the tubes T1 and T2 against each other to crush the tubes T1 and T2 as the lid portion 22 approaches the pedestal 21 relatively. A sensor 26 (corresponding to a second detection unit) for detecting is provided.

As shown in FIGS. 5 and 6, the pedestal 21 includes a first pedestal 211 provided on the fixed side X2 of the tubes T1 and T2, and a second pedestal 212 provided on the replacement side X1 of the tubes T1 and T2. There is. A gap 21a is provided between the first pedestal 211 and the second pedestal 212 along the extending direction of the tubes T1 and T2. The gap 21a is provided for the wafer WF to pass through when the wafer WF before use moves to the fusing position, when the used wafer WF is sent out to the outside of the housing 10, and the like.

Further, each of the first pedestal 211 and the second pedestal 212 is provided with an engaged portion 213 that can be engaged with the engaging claw 225 of the lid portion 22, which will be described later.

The lid portion 22 includes a first clamp arm 221 rotatably provided with respect to the first pedestal 211, and a second clamp arm 222 rotatably provided with respect to the second pedestal 212. The lid portion 22 is rotatably provided with respect to the cover 223 covering the first clamp arm 221 and the second clamp arm 222, the first clamp arm 221 and the second clamp arm 222, and can be gripped by the user M. It is provided with a grip portion 224. The lid portion 22 is configured to be openable and closable with respect to the tube holding portion 23. The lid portion 22 exposes the groove portions 231a, 231b, 232a, and 232b to the outside in the open state, and isolates the groove portions 231a, 231b, 232a, and 232b from the outside in the closed state.

The first clamp arm 221 and the second clamp arm 222 are configured to be rotatable.

The cover 223 integrally covers the first clamp arm 221 and the second clamp arm 222. Therefore, as shown in FIG. 2, in the state where the lid portion 22 is closed, the cover 223 covers the first pedestal 211, the second pedestal 212, and the region where the fusing-bonding is performed between them. As shown in FIG. 6, the cover 223 is provided on the tip side of the first member 223a provided on the root side of the rotation shaft of the cover 223 and the first member 223a, and the first member 223a is provided with the lid portion 22 open. A second member 223b, which can be accommodated inside the above, is provided. The second member 223b is configured to be slidable with respect to the first member 223a. However, the configuration of the cover is not limited to the above as long as it can cover the region where the fusing-bonding is performed in the closed state of the lid portion 22. The cover may be composed of one member other than the above.

As shown in FIG. 6, the grip portion 224 includes an engaging claw 225 that can be engaged with the engaged portion 213 of the pedestal 21. Therefore, as shown in FIGS. 10 and 11, after closing the first clamp arm 221 and the second clamp arm 222 and the cover 223, the grip portion 224 is attached to the first clamp arm 221 and the second clamp arm 222. When rotated, the engaging claw 225 engages with the engaged portion 213. As a result, the state in which the clamp portion 20 sandwiches the tubes T1 and T2 can be suitably maintained.

As shown in FIGS. 5 and 6, the tube holding portion 23 can move the first holding portion 231 that fixedly holds the fixed side X2 of each tube T1 and T2, and the replacement side X1 of each tube T1 and T2. It is provided with a second holding portion 232 to be held in the. The tube holding unit 23 has a release unit 233 capable of switching the second holding unit 232 from the holding state in which the tubes T1 and T2 are held to the released state in which the holding is released, and the tube holding unit 232 from the released state to the holding state. A switchable restoration unit 234 and a switchable restoration unit 234 are provided.

The first holding portion 231 is fixed to the upper surface of the first pedestal 211. As shown in FIG. 6, the first holding portion 231 includes a concave groove portion 231a into which the tube T1 can be fitted (held), and a concave groove portion 231b into which the tube T2 can be fitted.

As shown in FIG. 10, the groove portions 231a and 231b are provided so as to be arranged in a direction (oblique direction) inclined by an angle θ with respect to the mounting surface FS of the housing 10. Therefore, the tubes T1 and T2 are held by the first holding portion 231 in a state of being inclined and arranged with respect to the mounting surface FS in the tube holding portion 23. The groove portion 231a arranged on the inner side of the direction D1 in which the tubes T1 and T2 are arranged is arranged at a position higher than the groove portion 231b in the height direction Z of the housing 10.

Further, the groove portions 231a and 231b are provided so as to be concavely recessed on the upper surface side of the first holding portion 231 along a direction substantially orthogonal to the diagonal direction D1 (see the direction D2 in FIG. 11). Therefore, the tubes T1 and T2 are set so as to be inserted from the direction D2 orthogonal to the direction D1 in which the tubes T1 and T2 are arranged. As a result, the user M can easily set the tubes T1 and T2 with the lid portion 22 open.

As shown in FIG. 6, the second holding portion 232 is rotatably attached to the side surface of the second pedestal 212 with the rotation shaft 232c substantially parallel to the left-right direction Y as the center of rotation. The second holding portion 232 includes groove portions 232a and 232b arranged at the same height and inclination as the first holding portion 231 in a state where the lid portion 22 is opened. The groove portions 232a and 232b are configured to hold the tubes T1 and T2 together with the groove portions 231a and 231b in a state where the lid portion 22 is open. The second holding portion 232 is displaced downward in the height direction Z with the rotation shaft 232c as the center of rotation in a state where the lid portion 22 is closed, and the groove portions 232a and 232b are separated from the tubes T1 and T2.

As shown in FIG. 6, the release portion 233 includes a protrusion protruding from the base portion of the second holding portion 232 toward the flat surface of the second clamp arm 222 in a state where the lid portion 22 is open.

The protrusion of the release portion 233 abuts on the flat surface of the second clamp arm 222 provided on the lid portion 22 as the lid portion 22 moves relatively close to the housing 10. The protrusion of the release portion 233 is configured to retract the second holding portion 232 from the holding position to the release position as the lid portion 22 moves relatively close to the housing 10. In the present specification, the released state means a state in which the tubes T1 and T2 are not arranged in the grooves 232a and 232b of the second holding portion 232 when the lid portion 22 is closed.

As shown by the broken line in FIG. 6, the restoring portion 234 provides a cam capable of pushing up the second holding portion 232 in conjunction with the operation in which the second clamp arm 222 of the lid portion 22 is relatively separated from the housing 10. I have. The restoration unit 234 is configured so as to be in contact with the second holding unit 232.

The cam of the restoration unit 234 has a substantially fan-shaped outer shape when viewed from the side surface of the housing 10. The cam of the restoration portion 234 is fixed in the vicinity of the rotating portion of the second clamp arm 222. Therefore, the cam of the restoration unit 234 rotates in conjunction with the rotation of the second clamp arm 222. As described above, the second holding unit 232 is configured to be movable between the holding position and the releasing position by the releasing unit 233 and the restoring unit 234.

Further, in the present embodiment, the release unit 233 retracts the second holding unit 232 from the holding position to the release position after the tube pressing unit 25, which will be described later, sandwiches the tubes T1 and T2. Therefore, the tube pressing portion 25 can sandwich the tubes T1 and T2 in a state where the replacement side X1 of the tubes T1 and T2 is held at an appropriate position by the second holding portion 232.

As shown in FIG. 8, the sensor 24 includes a pin 241 provided in the groove portions 231a and 231b and configured to allow protrusion and depression from the groove portions 231a and 231b, and a magnet 242 provided at the base portion of the pin 241. It is provided with a Hall element 243. The pin 241 is configured by the elastic member 244 so as to be able to protrude and sink from the bottom of the groove portions 231a and 231b. The pin 241 changes its position from the protruding position to the depressed position by fitting the tubes T1 and T2 into the grooves 231a and 231b. The magnet 242 moves in accordance with the protrusion or depression of the pin 241 from the groove 231a and 231b, while the Hall element 243 is arranged adjacent to the magnet 242 at the bottom of the groove 231a and 231b. The sensor 24 detects whether or not the tubes T1 and T2 are arranged in the grooves 231a and 231b by changing the magnitude of the magnetic force of the magnet 242 detected by the Hall element 243 according to the position of the pin 241. However, the specific configuration is not limited to the above as long as it can be detected that the tubes T1 and T2 are arranged in the grooves 231a and 231b.

As shown in FIG. 6, the tube pressing portion 25 includes a fixed side pressing portion 25a and a movable side pressing portion 25b.

As shown in FIG. 10, the fixed-side pressing portion 25a brings the tubes T1 and T2 close to the direction D1 in which the tubes T1 and T2 are lined up on the fixed-side X2 of the tubes T1 and T2, and presses the tubes T1 and T2 in contact with each other. Is given. As shown in FIGS. 6 and 18, the fixed-side pressing portion 25a includes a lid-side pressing portion 251 provided on the first clamp arm 221 and a housing-side pressing portion 252 provided on the first pedestal 211.

As shown in FIG. 11, the movable side pressing portion 25b brings the tubes T1 and T2 close to each other in the direction D1 in which the tubes T1 and T2 are arranged in the same manner as the fixed side pressing portion 25a on the replacement side X1 of the tubes T1 and T2, and abuts against each other. A pressing force is applied to the tubes T1 and T2. As shown in FIGS. 6 and 18, the movable side pressing portion 25b includes a lid side pressing portion 253 provided on the second clamp arm 222 and a housing side pressing portion 254 provided on the second pedestal 212.

Further, in the movable side pressing portion 25b, as shown in FIG. 19, the movable side end portions of the fused tubes T1 and T2 are replaced with respect to the fixed side depending on the configuration of the motor, gears and the like (not shown). Further, the movable side pressing portion 25b presses the movable side tubes T1 and T2 whose ends are exchanged with respect to the fixed side against the fixed side tubes T1 and T2 in the left-right direction Y. The movable side pressing portion 25b includes a rotatably configured cam (not shown) and a contact member (not shown) capable of contacting the cam in the left-right direction Y. The movable side pressing portion 25b has the end portions of the movable side tubes T1 and T2 fixed to the fixed side tubes T1 and T2 because the contact position of the cam with the contact member in the left-right direction Y differs according to the rotation of the cam. Press against the edge. The movable side pressing portion 25b is configured so that when the tube joining is completed and the tubes T1 and T2 are removed from the tube holding portion 23, the parts related to the replacement of the tube and the pressure joining of the tube return to the initial positions.

The sensor 26 detects that the lid portion 22 is closed with respect to the pedestal 21. The specific configuration of the sensor 26 is not particularly limited as long as it can detect that the lid portion 22 is closed with respect to the pedestal 21 and start the tube joining operation. In the present embodiment, the sensor 26 is provided with a sensor such as a limit switch adjacent to the engaged portion 213 as shown in FIG. In the sensor 26, when the engaging claw 225 engages with the engaged portion 213, the tip of the engaging claw 225 comes into contact with the sensor and pushes the sensor, whereby the lid portion 22 is closed. Is being detected.

The interlock 30 has a function of locking the clamp portion 20 in a state of sandwiching the tubes T1 and T2 at the time of fusing-joining.

As shown in FIG. 11, the interlock 30 is configured by the rod 31 of the electromagnetically driven solenoid in the present embodiment.

The storage unit 40 is located at the location shown in FIG. 3, and has a function of storing the wafer cassette WC inserted in the housing 10 and a function of detecting the remaining amount of the wafer WF in the wafer cassette WC. .. The wafer cassette WC corresponds to a storage case in the present specification.

As shown in FIG. 14, the storage unit 40 includes a mounting unit 41 on which the wafer cassette WC inserted from the cassette insertion hole 11c is mounted, and a sensor 42 capable of detecting the wafer WF in the wafer cassette WC. .. The sensor 42 monitors the remaining amount of the wafer WF and whether or not the wafer WF can be used while the power is turned on by the operation unit 60. The sensor 42 can be configured by, for example, a known photo sensor. The sensor 42 corresponds to the third detection unit in the present specification.

The feeding unit 50 is located at the location shown in FIG. 3, and feeds the wafer WF to the fusing position, heats the wafer WF at the time of fusing, cools the used wafer WF, and disposes the used wafer WF into the housing 10. Send out to the outside of.

The feeding unit 50 is configured to be able to feed the wafer WF from the wafer cassette WC in the storage unit 40 to the fusing position. The feeding unit 50 includes a driving unit capable of feeding the used wafer WF to the outside of the housing 10 through the gap 21a between the first pedestal 211 and the second pedestal 121. The feeding unit 50 includes a heater capable of heating the wafer WF at the time of fusing, and a fan capable of cooling the used wafer WF (not shown).

The operation unit 60 receives an instruction from the user M to the tube joining device 1. The operation unit 60 includes a switch for switching ON / OFF of the power supply of the tube joining device 1. The operation unit 60 is provided on the rear end side of the upper portion 11 of the housing 10 as shown in FIG. 2 in the present embodiment, but the specific position is not limited to this.

The notification unit 70 notifies the user M of necessary information. As shown in FIGS. 1 and 3, the notification unit 70 includes display units 71 and 72 for displaying information necessary for the user M, and a speaker 73 for transmitting information necessary for the user M by voice. There is.

The power supply unit 80 has a function of supplying electric power to each unit of the tube joining device 1. As shown in FIG. 1, the power supply unit 80 includes a battery 81 capable of supplying electric power to each unit and a charger 82 for charging the battery 81.

The control unit 90 comprehensively controls each unit of the tube joining device 1. The control unit 90 includes a CPU such as a microcomputer, a ROM for storing control programs and various data of the entire device executed by the CPU, and a RAM for temporarily storing measurement data and various data as a work area. There is.

As shown in FIG. 12, the control unit 90 is electrically connected to the power supply unit 80 and receives power from the power supply unit 80. Further, the control unit 90 is electrically connected to the operation unit 60, and is configured to be able to control the operation of each unit in response to an instruction from the user M. Further, the control unit 90 is electrically connected to the notification unit 70, and is configured to be able to notify the user M of necessary information.

Further, the control unit 90 is electrically connected to the sensors 24, 26, 42, the interlock 30, and the temperature sensor 11e. The control unit 90 detects the set of the tubes T1 and T2 by the sensor 24, detects the closed state of the lid part 22 by the sensor 26, and the wafer when there is one or more wafer WFs that can be used by the sensor 42 in the wafer cassette WC. Control is performed to start the fusing work by the WF.

When the control unit 90 obtains information from the sensor 24 that the tubes T1 and T2 are not properly set, the control unit 90 notifies the notification unit 70 to that effect. Further, when the sensor 26 obtains information that the lid portion 22 is not properly closed, the control unit 90 notifies the notification unit 70 to that effect. If the wafer cassette WC does not contain a usable wafer WF, the control unit 90 notifies the notification unit 70 to that effect. Further, the control unit 90 causes the interlock 30 to maintain the lid portion 22 in a closed state during the fusing-bonding. Further, the control unit 90 adjusts the heating time of the tubes T1 and T2 by the wafer WF at the time of fusing based on the environmental temperature of the housing 10 measured by the temperature sensor 11e.

Further, the control unit 90 is electrically connected to the storage unit 40 and the feed unit 50, and is configured to be able to control these operations. Further, the control unit 90 is electrically connected to a motor (not shown) of the movable side pressing unit 25b, and controls the position exchange work of the movable side pressing unit 25b.

As shown in FIG. 14, the wafer cassette WC is configured to be capable of accommodating a plurality of wafer WFs. The wafer cassette WC is taken in and out through the cassette insertion hole 11c of the tube joining device 1. As shown in FIG. 4, the used wafer WF is taken out of the housing 10 from the gap 21a between the first pedestal 211 and the second pedestal 212. As shown in FIG. 14, the wafer cassette WC includes a case WC1, urging members WC2, WC3, and a mounting portion WC4.

The case WC1 is configured to form a semi-closed space capable of accommodating a plurality of wafer WFs. A lid (not shown) can be attached to the upper part of the case WC1 or the like. The urging member WC2 gathers the wafer WF to one side of the case WC1 so that the wafer WF can be removed from the case WC1 for fusing. The urging member WC2 is composed of a plate-shaped member in the present embodiment. The urging member WC3 is composed of an elastic member such as a string-wound spring so that the urging member WC2 can urge the wafer WF. The wafer WF is collected in the standby position in the case WC1 by the urging members WC2 and WC3. The mounting portion WC4 holds the position of the urging member WC3 with respect to the urging member WC2 so that the urging member WC3 can apply the urging force to the urging member WC2. The mounting portion WC4 is configured by providing a substantially truncated cone shape on one side of the urging member WC2 in the present embodiment.

In the present embodiment, the tube T1 is composed of a tube on the dialysate bag T11 side of the peritoneum (see FIG. 13). Specifically, a predetermined connector T12 is attached to the tip of the tube T1. The opposite side of the tube T1 is connected to the dialysate tube T14 of the dialysate bag T11 via the branch tube T13. Further, the tube T1 is connected to the drainage tube T16 of the drainage bag T15 via the branch pipe T13.

The tube T2 is composed of a tube on the side of the peritoneal catheter T26 of the user M used for peritoneal dialysis. Specifically, the tube T2 includes an extension tube T21 and a protective tube T22. The extension tube T21 is connected to the peritoneal catheter T26 via a connecting tube T23, a silicone tube T24, and a catheter joint T25. One end side of the peritoneal catheter T26 is inserted into the abdominal cavity of the user M.

In this embodiment, the tubes T1 and T2 are made of vinyl chloride. However, the materials of the tubes T1 and T2 are not limited as long as they can be joined to each other by fusing and pressurizing. For example, the materials of the tubes T1 and T2 may be different from each other.

Next, an example of using the tube joining set S will be described. First, when using the tube joining device 1, the user M inserts the wafer cassette WC in which the wafer WF is housed in the case WC1 into the cassette insertion hole 11c of the tube joining device 1. Next, the user M presses the button of the operation unit 60 to turn on the power of the tube joining device 1.

Next, the user M opens the lid portion 22 of the tube joining device 1 as shown in FIG. Next, as shown in FIGS. 10, 11, 16 and 17, the user M sets the tubes T1 and T2 in the grooves 231a, 231b, 232a and 232b of the tube holding portion 23. Next, the user M performs an operation of closing the lid portion 22 (an operation of bringing the lid portion 22 relatively close to the housing 10). Since the lid portion 22 is closed, the outer peripheral portion of the fusing portion of the tubes T1 and T2 is covered with the cover 223 and is isolated from the outside. This makes it possible to carry out the fusing-joining operation in an aseptic state.

As shown in FIG. 15, the control unit 90 confirms whether the tubes T1 and T2 are set in the groove portions 231a, 231b, 232a, and 232b by the sensor 24, and whether the lid portion 22 is closed by the sensor 26 (ST1). ). When the set of the tubes T1 and T2 in the groove portions 231a, 231b, 232a and 232b and the closed state of the lid portion 22 cannot be detected (ST1: NO), the control unit 90 sets the tubes T1 and T2 and the lid on the notification unit 70. Notify the unit 22 to be closed (ST2).

When the tubes T1 and T2 are set in the groove portions 231a, 231b, 232a, 232b and the closed state of the lid portion 22 is detected (ST1: YES), the control unit 90 houses the wafer WF in the wafer cassette WC by the sensor 42. Check if it is (ST3). When the wafer WF is not stored in the wafer cassette WC (ST3: NO), the control unit 90 notifies the notification unit 70 to notify the wafer cassette WC to store the wafer WF (ST4).

When the wafer WF is housed in the wafer cassette WC (ST3: YES), the control unit 90 causes the feed unit 50 to take out the wafer WF from the wafer cassette WC, and the fusing preparation position (wafer WF in FIG. 18 is indicated by a broken line). It is sent out to the position where it is set (ST5). Next, the control unit 90 confirms whether the wafer WF can be used for fusing (ST6). When the wafer WF is not suitable for fusing (ST6: NO), the control unit 90 informs the notification unit 70 that the wafer WF is not suitable for fusing or that the wafer WF is sent out again. (ST7). Then, the control unit 90 causes the feed unit 50 to take out the wafer WF from the wafer cassette WC again and feed it to the fusing preparation position (ST5). At this time, the wafer WF that is not suitable for fusing is pushed out from the fusing preparation position by the next wafer WF.

When the wafer WF sent to the fusing preparation position can be used (ST6: YES), the control unit 90 starts controlling the fusing work by the wafer WF.

First, the control unit 90 operates the interlock 30 to lock the lid portion 22 in the closed state.

Then, the wafer WF at the fusing preparation position is heated by the built-in heater (ST8). Then, the wafer WF heated by the feed unit 50 is moved to a fusing position (a position where the wafer WF in FIG. 18 is shown by a solid line), and fusing is performed as shown in FIG. 18 (ST9).

Next, the control unit 90 drives the motor of the movable side pressing unit 25b, and causes the tube pressing unit 25 to exchange the positions of the replacement side X1 of the tube T1 and the replacement side X1 of the tube T2 as shown in FIG. ST10). After that, as shown in FIG. 20, the control unit 90 presses the ends of the tube T1 and the tube T2 replaced by the tube pressing unit 25 in the left-right direction Y to perform pressure bonding (ST11).

Next, the control unit 90 unlocks the interlock 30. Next, the user M performs an operation of opening the lid portion 22 and removes the tubes T1 and T2 from the tube joining device 1 as shown in FIG. 21.

As described above, in the tube joining device 1, after the end portion of the tube T1 and the end portion of the tube T2 are fused by the heated wafer WF, the fused end portion of the tube T1 and the fused end portion of the tube T2 are exchanged. To join. The tube joining device 1 includes a tube holding portion 23, a lid portion 22, sensors 24 and 26, and a control unit 90. The tube holding portion 23 is configured to be able to hold the tubes T1 and T2. The lid portion 22 is configured to be openable and closable with respect to the tube holding portion 23, and the groove portions 231a, 231b, 232a, and 232b are exposed to the outside in the open state, and the groove portions 231a, 231b, 232a, and 232b are isolated from the outside in the closed state. do. The sensor 24 detects that the tubes T1 and T2 are held in the grooves 231a, 231b, 232a, and 232b. The sensor 26 detects that the lid portion 22 is in the closed state. The control unit 90 controls the operation of the wafer WF. The control unit 90 detects the holding of the groove portions 231a, 231b, 232a, and 232b of the tubes T1 and T2, and when the sensor 26 detects the closed state of the lid portion 22, the tubes T1 and T2 are blown. Start the transition to control.

As a result, if the above conditions are satisfied, the fusing operation can be started by the control unit 90 without the user pressing the fusing start button. This makes it possible to simplify the operation procedure performed by the user M until the fusing work of the tubes T1 and T2 is performed, as compared with the case where the fusing work is started by pressing a button or the like.

Further, the tube joining device 1 has a pedestal 21. The lid portion 22 includes an engaging claw 225 that can be engaged with the pedestal 21, and the pedestal 21 includes an engaged portion 213 that is engaged with the engaging claw 225. The sensor 24 is provided in the grooves 231a, 231b, 232a, and 232b, and the tubes T1 and T2 are fitted into the grooves 231a, 231b, 232a, and 232b to detect the holding of the tubes T1 and T2. The sensor 26 is provided adjacent to the engaged portion 213, and detects the closed state of the lid portion 22 by engaging the engaging claw 225 with the engaged portion 213. Thereby, the set of the tubes T1 and T2 in the groove portions 231a, 231b, 232a and 232b and the closed state of the lid portion 22 can be appropriately detected, and the tube joining can be started without error.

Further, the tube joining device 1 has a mounting portion 41 and a sensor 42. The mounting unit 41 is configured to mount a wafer cassette WC capable of accommodating one or more wafer WFs. The sensor 42 detects that the wafer WF is housed in the wafer cassette WC mounted on the mounting portion 41. When the control unit 90 detects that the sensors 24 hold the tubes T1 and T2 in the grooves 231a and 231b, the sensor 26 closes the lid portion 22, and the sensor 42 accommodates the wafer WF, the control unit 90 performs a fusing operation. Start the transition to control. As a result, in addition to the above, it can be confirmed that the wafer WF is on the wafer cassette WC, and the operation procedure performed by the user M before the fusing work of the tubes T1 and T2 is performed as compared with the case where the fusing start button is pressed. It can be simplified and the fusing work can be started without error.

Further, when the control unit 90 determines that the wafer WF housed in the wafer cassette WC is not suitable for the fusing work, the control unit 90 stops the fusing work until the wafer WF suitable for the fusing work is housed in the wafer cassette WC. As a result, it is possible to prevent a situation in which a wafer WF unsuitable for fusing is sent out and the joining of the tubes T1 and T2 is not successful, and the joining of the tubes T1 and T2 can be performed more reliably.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. FIG. 22 is a flowchart showing a modified example of FIG. Since each step shown in FIG. 22 is the same as the step shown in FIG. 15, detailed description thereof will be omitted. In the above, as shown in FIG. 15, the control unit 90 confirms that the tubes T1 and T2 are set, the lid portion 22 is closed, and the wafer WF suitable for use in the wafer cassette WC is accommodated, and then the fusing operation is performed. The embodiment in which the transition to the control of the above is started has been described.

However, in addition to the above, the power is turned on when the wafer WF suitable for use is stored in the wafer cassette WC, and the power is turned off when there is no wafer WF that can be used during use. May be good. In that case, as shown in FIG. 22, the control unit holds the tubes T1 and T2 in the grooves 321a, 321b, 322a and 322b, and when the lid 22 is closed (ST1: YES), the tubes T1 and T2 The transition to control of the fusing work is started (ST3). In this case, it is possible to omit confirmation of whether the wafer WF suitable for use during the fusing work of the tubes T1 and T2 is housed in the wafer cassette WC.

Further, the present invention can be used not only for peritoneal dialysis but also for a device for aseptically joining a tube connected to a container (bag) containing a blood product or the like used for blood transfusion to another tube. In this case, the sterility of the blood components (formulations) in the tube and the bag can be maintained.

The present invention can also be used in an apparatus for aseptically joining a tube connected to a container (bag) containing a cell culture solution containing various collected and cultured cells to another tube. Also in this case, the sterility and safety of the cell culture solution in the tube and the bag can be maintained at the time of tube joining.

This application is based on Japanese Patent Application No. 2019-011495 filed on January 25, 2019, the disclosure of which is cited in its entirety by reference.

1 Tube joining device,
21 pedestals,
213 Engaged part,
22 Closure,
225 engaging claws,
23 Tube holder,
231a, 231b, 232a, 232b groove,
24 Sensor (1st detector),
26 Sensor (2nd detector),
41 Mounting part,
42 sensor (third detector),
90 Control unit,
T1 (1st) tube,
T2 (second) tube,
WC wafer cassette (containment case),
WF wafer (cutting member).

Claims (4)

A tube joining device that fuses the end of the first tube and the end of the second tube with a heated cutting member, and then replaces the fused end of the first tube with the fused end of the second tube. And
A tube holding portion having a groove capable of holding the first tube and the second tube, and a tube holding portion.
A lid portion that is configured to be openable and closable with respect to the tube holding portion, exposes the groove portion to the outside in the open state, and isolates the groove portion from the outside in the closed state.
A first detection unit that detects that the first tube and the second tube are held in the groove portion, and
A second detection unit that detects that the lid portion is in the closed state, and
It has a control unit that controls the cutting member, and has
The control unit said when the first detection unit detects holding of the first tube and the second tube in the groove portion, and the second detection unit detects the closed state of the lid portion. A tube joining device that initiates the transition to control of the fusing work of the first tube and the second tube. Further having a pedestal on which the tube holding portion is installed,
The lid is provided with engaging claws that can be engaged with the pedestal.
The pedestal comprises an engaged portion that is engaged with the engaging claws.
The first detection unit is provided in the groove portion, and the holding of the first tube and the second tube is detected by fitting the first tube and the second tube into the groove portion.
The second detection unit is provided adjacent to the engaged portion, and the closed state of the lid portion is detected by engaging the engaging claw with the engaged portion, according to claim 1. The tube joining device described. A mounting portion on which a storage case capable of accommodating one or more of the cutting members is mounted, and a mounting portion.
Further, it has a third detection unit for detecting that the cutting member is housed in the storage case mounted on the mounting portion.
In addition to the detection of the holding of the first tube and the second tube in the groove by the first detection unit and the detection of the closed state of the lid by the second detection unit, the control unit has the first detection unit. 3. The tube joining device according to claim 1 or 2, wherein when the detection unit detects that the cutting member is housed in the housing case, the transition to control of the fusing operation is started. When the control unit determines that the cutting member housed in the storage case is not suitable for the fusing work, the control unit performs the fusing work until the cutting member suitable for the fusing work is housed in the storage case. The tube joining device according to claim 3, which is stopped.

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