JP5944790B2 - Medical tube seal device - Google Patents

Description

  The present invention relates to a medical tube seal apparatus.

  2. Description of the Related Art Conventionally, as a medical tube seal device that seals and welds a medical tube (hereinafter simply abbreviated as “tube”) disposed between a pair of electrodes, a medical tube that conventionally moves an electrode using an electric cylinder. A sealing device is known (for example, refer to Patent Document 1).

  In the conventional medical tube seal device, since the moving speed of the electrode when the tube is sealed is configured to decrease stepwise, compared to the case where the moving speed of the electrode is always constant, It is possible to further improve the finish of the sealed portion of the tube while shortening to some extent the time from when the electrode starts to move to when it finishes moving.

JP 2011-121360 A

  By the way, according to an experiment conducted by the present inventors, it has been found that when a tube is sealed using a conventional medical tube seal device, the tube is torn off at the seal portion, although very rarely.

  For example, in the manufacturing process of a blood product, it is necessary to seal a tube connected to a blood bag at a plurality of locations to create a plurality of segment tubes (sample bodies used for a cross-match test or the like). At this time, if the tube is broken at a stage unintended by the operator, not only the segment tube but also the blood bag itself must be discarded because it is a non-conforming product as a blood product. It is also important to solve the above problems in order not to waste precious blood products that are made from blood obtained from bona fide donations.

  Accordingly, the present invention has been made to solve the above-described problem, and provides a medical tube seal device capable of suppressing as much as possible a tube from being broken at a stage not intended by an operator. With the goal.

  In order to achieve the above object, the present inventors have thoroughly investigated in which case the tube is torn when the tube is sealed using a conventional medical tube seal device. As a result, it was found that at the moment when the moving speed of the electrode is switched, if the tube is sealed with an extra force applied to the tube, the tube is easily broken.

  This extra force means, for example, that an operator tries to insert a tube excessively when the tube is inserted from the top to the bottom between a pair of electrodes in a state where both ends of the tube are gripped. This means the tensile force when the tube is pulled due to contact between the electrode peripheral portion and the tube. If such a tensile force is applied to the sealed tube at the moment when the moving speed of the electrode is switched, it becomes impossible to withstand the tensile force in the melted portion of the tube, resulting in the tube being broken at the sealed portion. It is.

  Based on the above findings, the present inventors do not cut the tube at the seal portion even if an extra force is applied to the sealed tube at the moment when the moving speed of the electrode is switched. Further research was conducted in order to find a means to achieve this. As a result, at the moment when the moving speed of the electrode was switched, the thrust of the electric cylinder was zero for a moment, and the fact that this was related to the occurrence of the tearing of the tube was found.

This will be explained in detail. Since the thrust of the electric cylinder does not become zero while the electrode is moving at a constant speed in a state where the electrode and the tube are in contact, the electrodes approach each other from the electrode to the tube. The force continues to be applied in the direction to do. For this reason, even if an extra force is applied to the tube, the tube will not be broken.
On the other hand, at the moment when the moving speed of the electrode is switched, the thrust of the electric cylinder becomes zero for a moment when a conventional medical tube seal device is used, and the electrodes approach each other from the electrode to the tube. There is a moment when power is not applied. If an extra force is applied to the tube that is sealed at this moment, it becomes impossible to withstand such extra force in the melted portion of the tube, resulting in the tube being broken at the seal portion.

  Based on the above knowledge, the present inventors can control the drive of the electric cylinder so that the thrust of the electric cylinder does not become zero even at the moment when the moving speed of the electrode is switched. Thus, the force will continue to be applied in the direction in which the electrodes approach each other, and even if an extra force is applied to the tube being sealed, the occurrence of cutting of the tube can be suppressed. The inventors have conceived that this problem can be solved, and have completed the present invention.

  That is, the medical tube seal device of the present invention is an electric motor that moves at least one of the pair of electrodes along a tube seal portion having a pair of electrodes and a direction in which the pair of electrodes approaches or separates. A cylinder, a tube seal operation control unit that controls the tube seal operation of the tube seal unit, and an electric cylinder drive control unit that controls the drive of the electric cylinder so as to gradually decrease the moving speed of the electrode. The tube seal operation control unit controls the tube seal unit so that the tube seal operation is performed by the tube seal unit for a predetermined time including at least a time point when the moving speed of the electrode is switched, and the electric cylinder drive control When the moving speed of the electrode is switched, the thrust of the electric cylinder is reduced. So as to be not without more than a predetermined value and, and controls the driving of the electric cylinder.

  According to the medical tube seal device of the present invention, since the above-described electric cylinder drive control unit is provided, a force is applied in the direction in which the electrodes approach the tube from the electrodes even at the moment when the moving speed of the electrodes is switched. Will continue to join. For this reason, even if an extra force is applied to the sealed tube, the tube can be prevented from being broken and the tube can be broken as much as possible without the operator's intention. It becomes possible to suppress.

  In the medical tube seal device of the present invention, it is preferable that the electric cylinder drive control unit controls driving of the electric cylinder so that a pressing operation is performed when the moving speed of the electrode is switched.

  The pressing operation refers to an operation of holding an object while pressing the movable object against a certain object. If a pressing operation is performed when switching the moving speed of the electrode, the tube is held in a state where the electrode is pressed against the tube, and even when the moving speed of the electrode is switched, the electrodes move from the electrode to the tube. The force will continue to be applied in the direction of approaching. In addition, since it is not so difficult to program so that pressing operation may be performed, it becomes possible to implement | achieve the medical tube seal apparatus of this invention comparatively easily.

  The medical tube seal device of the present invention further includes an inter-electrode distance detection unit that detects a distance between the pair of electrodes and outputs the detection information to the tube seal operation control unit and the electric cylinder drive control unit. The tube seal operation control unit executes start or end of the tube seal operation by the tube seal unit based on the detection information from the inter-electrode distance detection unit, and the electric cylinder drive control unit It is preferable to control the driving of the electric cylinder so that the moving speed of the electrodes is switched based on the detection information from the inter-distance detection unit.

  By configuring in this way, it is only necessary to set in advance the distance between the pair of electrodes when the tube sealing operation starts or ends and the distance between the pair of electrodes when the moving speed of the electrodes is switched. The tube sealing operation can be started or ended according to the movement of the electrode, or the moving speed of the electrode can be switched.

  In the medical tube seal device of the present invention, the distance between the pair of electrodes when starting or ending the tube seal operation by the tube seal portion and the pair of electrodes when the moving speed of the electrodes is switched. The distance is preferably configured to be adjustable.

  By configuring in this way, it is possible to flexibly cope with, for example, a case where tubes having different tube diameters or different types of tubes are sealed.

  In the medical tube seal device of the present invention, the electric cylinder drive control unit moves the electrode at a first speed and a second speed that is lower than the first speed in two stages. It is preferable to control the driving of.

  By configuring in this way, it becomes possible to easily perform drive control of the electric cylinder as compared with a case in which switching is performed at a speed of a plurality of stages.

  Note that the reference numerals added in parentheses below the wording of each member and the like described in the claims are used to facilitate understanding of the contents described in the claims, and The contents described in the claims are not limited.

FIG. 1 is a block diagram showing an electrical configuration of a medical tube seal device 1 according to the embodiment. Drawing 2 is a figure shown in order to explain medical tube seal device 1 concerning an embodiment. FIG. 3 is a diagram schematically showing the configuration of the tube seal portion 20 and the electric cylinder 30. FIG. 4 is a diagram schematically showing a flow until the tube is sealed using the medical tube seal device 1. FIG. 5 is a diagram showing the relationship between the distance between the pair of electrodes 21 and 22 and the moving speed.

  Hereinafter, the medical tube seal device of the present invention will be described based on the embodiments shown in the drawings.

First, the structure of the medical tube seal apparatus 1 which concerns on embodiment is demonstrated using FIGS. 1-3.
FIG. 1 is a block diagram showing an electrical configuration of a medical tube seal device 1 according to the embodiment. Drawing 2 is a figure shown in order to explain medical tube seal device 1 concerning an embodiment. FIG. 2A is an overall perspective view of the medical tube seal device 1, and FIG. 2B is a perspective view for explaining the configuration of the tube seal portion 20 and the electric cylinder 30. FIG. 3 is a diagram schematically showing the configuration of the tube seal portion 20 and the electric cylinder 30.

  As shown in FIGS. 1 and 2, the medical tube seal apparatus 1 according to the embodiment is provided in the apparatus main body 10, a tube seal portion 20 provided on the front side of the apparatus main body 10, and the apparatus main body 20. The electric cylinder 30, the detection unit 40 that detects that a tube is disposed between the electrodes 21 and 22 of the tube seal unit 20, the inter-electrode distance detection unit 60, and each part in the medical tube seal device 1 are powered. Power supply unit 70, a power switch 72 provided on the upper surface of the apparatus main body 10, a storage unit 80, a rewrite unit 82, and a control unit 90 that controls each unit in the medical tube seal device 1 in an integrated manner. With.

  As shown in FIG. 1, the apparatus body 10 is provided with a slot portion 12 into which an external memory (for example, an SD card or a compact flash (registered trademark)) as an external recording medium can be inserted.

  The tube seal part 20 is a tube sealer having a function of sealing (sealing) a tube at a high frequency, for example, and as shown in FIGS. 2 and 3, a pair of electrodes 21 and 22 and a pair of electrodes 21 and 22. Electrode supporting portions 23 and 24 for supporting the electrodes, and a cover member 25 for covering the pair of electrodes 21 and 22.

  Of the pair of electrodes 21 and 22, the electrode 21 is a movable electrode, and the electrode 22 is a fixed electrode. The pair of electrodes 21 and 22 are provided so as to protrude from the front surface of the apparatus main body 10 and are covered with a cover member 25. As can be seen from FIG. 2, the cover member 25 is provided so that a tube can be inserted between the pair of electrodes 21 and 22 from above.

  The electric cylinder 30 is a member for moving the electrode 21 along the direction (arrow A1, A2 direction shown in FIG. 3) in which the pair of electrodes 21 and 22 are approached or separated from each other. The electric cylinder 30 is based on a motor 32, a motion conversion unit 34 that converts a rotational motion by the motor 32 into a linear motion along the direction of movement of the electrode 21, and the linear motion converted by the motion conversion unit 34. It has an advancing / retracting member 36 configured to be movable back and forth along the direction in which the electrode 21 moves, and a motor storage 38 for storing the motor 32 therein. One end of the advance / retreat member 36 is connected to the electrode support 23.

  The motor 32 is, for example, a servo motor. The motion conversion unit 34 and the advance / retreat member 36 are, for example, a nut member and a ball screw, and are configured such that the nut member is rotated by the motor 32 and the ball screw is advanced and retracted.

The detection unit 40 includes a substantially plate-shaped trigger member 42 and an infrared sensor 44 that is disposed at an end of the trigger member 42 and detects the operation of the trigger member 42. The trigger member 42 is provided so as to intersect the groove for inserting the tube in the cover member 25, and is configured to be lowered when the tube is pressed from above.
When the tube is disposed between the electrodes 21 and 22 to seal the tube, the trigger member 42 is lowered. The infrared sensor 44 detects the lowering of the trigger member 42 and sends the detection information to the control unit 90.

  The interelectrode distance detector 60 detects the distance between the pair of electrodes 21 and 22 and outputs the detected information to the controller 90 (the tube seal operation controller 92 and the electric cylinder drive controller 94). The interelectrode distance detector 60 is, for example, an incremental rotary encoder.

  The power supply unit 70 guides AC power from an external commercial power supply or the like via a power cable (not shown), and performs processing such as transformation, rectification, and smoothing by a built-in AC / DC conversion unit (not shown). The power is supplied to each part of the medical tube seal apparatus 1.

  The power switch 72 is a member for switching ON / OFF of the power supply of the medical tube seal device 1, and is configured to be able to switch ON / OFF of the power supply by pressing the power switch 72.

  The storage unit 80 includes the electrodes 21 and 22 when the tube sealing operation is started or ended by the force applied to the tube via the electrodes 21 and 22 (the thrust of the electric cylinder 30), the moving speed of the electrode 21, and the tube seal unit 20. Information on the distance between the electrodes 21 and 22 when the distance between them and the moving speed of the electrode 21 is switched is stored.

  In addition, although mentioned later for details, the distance between the electrodes 21 and 22 when starting the tube sealing operation (application of a high frequency current) by the tube sealing portion 20 is an interelectrode distance d2 shown in FIG. The distance between the electrodes 21 and 22 when the tube sealing operation is finished (the application of the high frequency current is stopped) is an interelectrode distance d4. Further, the distance between the electrodes 21 and 22 when the moving speed of the electrode 21 is switched is an interelectrode distance d3.

  The rewriting unit 82 has a function of receiving data from outside the apparatus and rewriting information stored in the storage unit 80 based on the data. Specifically, when an external memory is inserted into the slot portion 12 of the apparatus main body 10, the rewrite unit 82 reads data stored in the external memory, and information stored in the storage unit 80 based on the read data. To new information. The means for the rewrite unit 82 to read data from the external memory may be electrical, magnetic, or optical.

  The control unit 90 includes, for example, a microcomputer, and has at least a tube seal operation control unit 92 that controls the tube seal operation of the tube seal unit 20 and an electric cylinder drive control unit 94 that controls the driving of the electric cylinder 30. .

  Next, the flow until the tube is sealed using the medical tube seal apparatus 1 will be described with reference to FIGS. 4 and 5.

FIG. 4 is a diagram schematically showing a flow until the tube is sealed using the medical tube seal device 1. 4A is a diagram showing a state before the tube is arranged between the electrodes 21 and 22, and FIG. 4B is a diagram showing a state when the tube T is arranged between the electrodes 21 and 22. FIG. FIG. 4C is a diagram showing a state when the electrodes 21 and 22 are in contact with the tube T, and FIG. 4D is a diagram when a high-frequency current is started to be applied to the electrodes 21 and 22. FIG. 4 (e) is a diagram showing the state when the moving speed of the electrode 21 is switched, and FIG. 4 (f) is the state when the application of the high-frequency current to the electrodes 21 and 22 is stopped. FIG. 4G is a diagram illustrating a state when the sealing of the tube T is completed.
FIG. 5 is a diagram showing the relationship between the distance between the pair of electrodes 21 and 22 and the moving speed. The horizontal axis indicates the distance between the electrodes 21 and 22 from the start of sealing the tube to the end of sealing (from the start of application of high-frequency current to the electrodes 21 and 22 to the stop of application), and the vertical axis indicates the electrode The moving speed is shown.

  First, when the tube T is disposed between the pair of electrodes 21 and 22 (see FIGS. 4A and 4B), the illustration of the illustration is omitted, but the trigger member 42 is lowered, and the infrared sensor. 44 detects the lowering of the trigger member 42, and the detection information is sent to the control unit 90. The control unit 90 that has received the detection information reads information stored in the storage unit 80. The electric cylinder drive control unit 94 drives the electric cylinder 30 (motor 32) based on the information, and moves the electrode 21 in a direction approaching the electrode 22. The moving speed of the electrode 21 at this time is the first speed V1 as shown in FIG.

  The electrode 21 contacts the tube T as shown in FIG. 4C, and further moves while crushing the tube T. The thrust of the electric cylinder 30 at this time is based on information stored in the storage unit 80. The interelectrode distance detection unit 60 outputs detection information to the control unit 90 when detecting that the electrode 21 has reached the interelectrode distance d2 shown in FIG. The tube seal operation control unit 92 starts the tube seal operation (application of a high-frequency current) by the tube seal unit 20 based on the detection information output from the interelectrode distance detection unit 60 (see FIG. 5).

  When the electrode 21 further moves to the position shown in FIG. 4E, the interelectrode distance detection unit 60 detects that the electrode 21 has reached the interelectrode distance d3 and outputs detection information to the control unit 90. The electric cylinder drive controller 94 reduces the moving speed of the electrode 21 to the second speed V2 that is lower than the first speed V1 based on the detection information output from the interelectrode distance detector 60 (see FIG. 5). In addition, the driving of the electric cylinder 30 is controlled so that the thrust of the electric cylinder 30 does not become zero but becomes a predetermined value or more. As drive control of the electric cylinder 30 such that the thrust of the electric cylinder 30 does not become zero and becomes a predetermined value or more, specifically, a pressing operation by the electric cylinder 30 is performed. When this pressing operation is performed, the tube T is held in a state where the electrodes 21 and 22 are pressed against the tube T, and even when the moving speed of the electrode 21 is switched, the electrodes 21 and 22 are applied to the tube T. Thus, force continues to be applied in the direction in which the electrodes approach each other.

  When the electrode 21 moves to the position shown in FIG. 4 (f), the inter-electrode distance detection unit 60 detects that the electrode 21 has reached the inter-electrode distance d 4 and outputs detection information to the control unit 90. The tube seal operation control unit 92 ends the tube seal operation by the tube seal unit 20 (stops application of the high-frequency current) based on the detection information output from the interelectrode distance detection unit 60. In addition, the electric cylinder drive control unit 94 stops the pressing operation by the electric cylinder 30 based on the detection information output from the interelectrode distance detection unit 60.

  After a predetermined waiting time elapses in the state shown in FIG. 4 (f), the electrode 21 moves in a direction to separate from the electrode 22, and the sealing of the tube T is completed (see FIG. 4 (g)).

  According to the medical tube seal device 1 according to the embodiment configured as described above, since the above-described electric cylinder drive control unit 94 is provided, the electrodes 21 and 22 even at the moment when the moving speed of the electrode 21 is switched. Therefore, force is continuously applied in the direction in which the electrodes approach the tube. For this reason, even if an extra force is applied to the sealed tube, the tube can be prevented from being broken and the tube can be broken as much as possible without the operator's intention. It becomes possible to suppress.

  In the medical tube seal apparatus 1 according to the embodiment, the electric cylinder drive control unit 94 controls the driving of the electric cylinder 30 so that the pressing operation is performed when the moving speed of the electrode 21 is switched. Since it is not so difficult to program to perform the pressing operation, the medical tube seal device of the present invention can be realized relatively easily.

  The medical tube seal device 1 according to the embodiment further includes the above-described interelectrode distance detection unit 60, so that the tube seal operation is started or ended according to the movement of the electrode, or the moving speed of the electrode 21 is set. It is possible to switch.

  The medical tube seal apparatus 1 according to the embodiment is configured such that various information stored in the storage unit 80 can be rewritten by the rewrite unit 82. That is, the distance between the electrodes (d2, d4 shown in FIG. 5) when starting or ending the tube sealing operation and the distance between the electrodes (d3 shown in FIG. 5) when the moving speed of the electrode 21 is switched can be adjusted. Therefore, for example, in the case of sealing tubes having different tube diameters or different types of tubes, it is possible to flexibly cope with the situation.

  In the medical tube seal apparatus 1 according to the embodiment, the electric cylinder drive control unit 94 controls the driving of the electric cylinder 30 so as to decrease the moving speed of the electrode 21 stepwise. As a result, compared to the case where the moving speed of the electrode is always constant, the time from when the electrode starts to move until it finishes moving is shortened to some extent, and the finish of the sealed portion of the tube can be made better. It becomes possible.

  In the medical tube seal apparatus 1 according to the embodiment, the electric cylinder drive control unit 94 controls the drive of the electric cylinder 30 so as to move the electrode 21 at two stages of the first speed V1 and the second speed V2. Therefore, the drive control of the electric cylinder 30 can be easily performed as compared with the case where the switching is performed at a plurality of stages.

  As mentioned above, although the medical tube seal apparatus of this invention was demonstrated based on said embodiment, this invention is not limited to said embodiment, In the range which does not deviate from the summary, it implements in a various aspect. For example, the following modifications are possible.

(1) In the above embodiment, the distance between the electrodes when the tube sealing operation is terminated and the distance between the electrodes when the pressing operation by the electric cylinder 30 is stopped are set to the same value (interelectrode distance d4). However, the present invention is not limited to this, and both may be set to different values.

(2) In the above embodiment, the case where the electrode 21 located on the electric cylinder 30 side of the pair of electrodes 21 and 22 is configured to move is described as an example, but the present invention is not limited thereto. The electrode 22 located on the side opposite to the electric cylinder 30 may be configured to move, or both the electrodes 21 and 22 may be configured to move.

(3) In the above embodiment, the case where the tube seal portion 20 is a high-frequency tube sealer having a function of closing the tube at a high frequency has been described as an example, but the present invention is not limited to this, For example, an ultrasonic tube sealer or an impulse heating tube sealer may be used.

(4) In the above embodiment, the case where the motion conversion unit 34 is a nut member and the advance / retreat member 36 is a ball screw has been described as an example. However, the present invention is not limited to this, and the rotation of the motor Other known means may be used as long as the electrode can be moved by movement. Further, the motor 32 is not limited to the servo motor described in the embodiment, and other types of motors may be used according to the configuration of the motion conversion unit and the advance / retreat member.

(5) In the above embodiment, the case where the detection unit 40 including the infrared sensor 44 that detects the operation of the trigger member 42 is provided has been described as an example, but the present invention is not limited to this, It may be a detection unit having known detection means (for example, a transmissive photo interrupter without a trigger member, a reflective photo reflector, a weight sensor, or the like).

(6) In the above embodiment, the case where the inter-electrode distance detection unit 60 is an incremental rotary encoder has been described as an example, but the present invention is not limited to this. For example, an absolute rotary encoder may be used.

(7) In the above embodiment, the case where the rewrite unit 82 is configured to read data from the external memory inserted in the slot unit 12 has been described as an example, but the present invention is limited to this. It is not a thing. For example, it may be configured to receive data information transmitted from an external information terminal such as a personal computer and rewrite information stored in the storage unit based on the data information.

(8) In the above-described embodiment, the information stored in the storage unit 80 is rewritten by the rewriting unit 82, whereby the electrode distance when the tube sealing operation is started or ended and the electrode moving speed are switched. Although the case where the distance can be adjusted has been described as an example, the present invention is not limited to this. For example, an input receiving unit that receives information transmitted from an external information terminal is provided, and based on the information input to the input receiving unit, the inter-electrode distance and the electrode moving speed when starting or ending the tube sealing operation are determined. You may be comprised so that the distance between electrodes at the time of switching can be adjusted.

(9) In the above-described embodiment, the case where the number of tube seal portions is one (so-called one-point sealer) has been described as an example, but the present invention is not limited to this. The present invention can also be applied to a medical tube seal device having two or more tube seal portions.

(10) In the above-described embodiment, as described with reference to FIG. 5, there is only one switching point of the moving speed of the electrode 21 from the start of application of the high-frequency current to the electrodes 21 and 22 until the stop of application. Although an example has been described, the present invention is not limited to this. For example, there may be two or more electrode moving speed switching points, and the moving speed may be reduced in more stages.

(11) In the above embodiment, the case where the pressing operation by the electric cylinder 30 is performed as the drive control of the electric cylinder 30 so that the thrust of the electric cylinder 30 does not become zero but becomes a predetermined value or more has been described as an example. However, the present invention is not limited to this. Even if a control method other than the pressing operation can be used to control the electric cylinder so that the thrust of the electric cylinder does not become zero when the electrode moving speed is switched, other control methods may be adopted. Good. As another control method, an example thereof will be described with reference to FIG. 5. It is assumed that the electrode has reached the inter-electrode distance d2 with respect to the electric cylinder which has been drive-controlled so that the electrode moves at the first speed V1. If programmed to move at the second speed V2 at the same time, the thrust of the electric cylinder does not become zero when the electrode moving speed is switched, and as a result, the same effect as in the present invention can be obtained.

DESCRIPTION OF SYMBOLS 1 Medical tube seal apparatus 10 Apparatus main body 12 Slot part 20 Tube seal part 21,22 Electrode 23,24 Electrode support part 30 Electric cylinder 32 Motor 34 Motion conversion part 36 Advance / retreat member 38 Motor storage part 40 Detection part 42 Trigger member 44 Infrared Sensor 60 Electrode distance detection unit 70 Power supply unit 72 Power switch 80 Storage unit 82 Rewriting unit 90 Control unit 92 Tube seal operation control unit 94 Electric cylinder drive control units d1, d2, d3, d4 Interelectrode distance T Tube

Claims (5)

A tube seal portion (20) having a pair of electrodes (21, 22);
An electric cylinder (30) for moving at least one of the pair of electrodes (21, 22) along a direction in which the pair of electrodes (21, 22) is approached or separated; and
A tube seal operation control unit (92) for controlling the tube seal operation of the tube seal unit (20);
An electric cylinder drive control unit (94) for controlling the driving of the electric cylinder (30) so as to reduce the moving speed of the electrode stepwise,
The tube seal operation control unit (92) controls the tube seal unit (20) so that the tube seal operation is performed by the tube seal unit (20) for a predetermined time including at least a time when the moving speed of the electrode is switched. Control
The electric cylinder drive control unit (94) is configured so that the electrode (21, 21) is applied to the tube (T) disposed between the pair of electrodes (21, 22) at the moment when the moving speed of the electrode is switched to a low speed . 22) to control the drive of the electric cylinder (30) so that the force applied to the tube (T) via zero is not zero and is not less than a predetermined value ,
A medical tube seal device (1) configured to continue to apply force in a direction in which the electrodes approach each other from the electrode to the tube even at the moment when the moving speed of the electrode is switched to a low speed. . The medical tube seal device according to claim 1,
The said electric cylinder drive control part (94) is a medical tube seal apparatus (1) which controls the drive of the said electric cylinder (30) so that pressing operation may be performed when switching the moving speed of the said electrode. The medical tube seal device according to claim 1 or 2,
An inter-electrode distance detector (60) that detects a distance between the pair of electrodes (21, 22) and outputs the detected information to the tube seal operation controller (92) and the electric cylinder drive controller (94). Further comprising
The tube seal operation control unit (92) executes start or end of the tube seal operation by the tube seal unit (20) based on the detection information from the inter-electrode distance detection unit (60),
The electric cylinder drive control unit (94) controls the driving of the electric cylinder (30) so that the moving speed of the electrodes is switched based on the detection information from the inter-electrode distance detection unit (60). A medical tube seal device (1). In the medical tube seal device according to claim 3,
The pair of electrodes (21, 22) when the distance between the pair of electrodes (21, 22) when the tube sealing operation by the tube seal part (20) starts or ends and the moving speed of the electrodes are switched. A medical tube seal device (1) configured such that the distance between them is adjustable. In the medical tube seal device according to any one of claims 1 to 4,
The electric cylinder drive controller (94)
A medical device that controls driving of the electric cylinder (30) so as to move the electrode at a first speed (V1) and a second speed (V2) that is lower than the first speed (V1); Tube seal device (1).

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