JP2014046026A - Driving device for artificial heart lung pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving device for an artificial heart lung pump, which facilitates handling, is usable in an operating room, can achieve a transportable-type structure, and can easily respond to even a situation requiring blood circulatory assistance in emergency.SOLUTION: The driving device includes: a transportable module unit 21 which can be carried around; and a base unit 22 to which the module unit 21 is detachably connected. The module unit 21 includes: a motor 25 driving an artificial heart lung pump 12; a control part 27; a flow meter connecting part 28; a display part 29 displaying the flow amount of blood; a base connecting part 30 electrically connected to the base unit 22; and a module-side battery 31. The base unit 22 includes: a switching power source 42; a sensor connecting part 43 connected to sensors (18 and 19) detecting information regarding blood; and a module connecting part 44 electrically connected to the module unit 21.

Description

  The present invention relates to a drive device for an artificial heart lung pump that is used in an artificial heart lung system and drives an artificial heart lung pump that circulates blood in an artificial heart lung circuit including the artificial lung.

  2. Description of the Related Art Conventionally, in an artificial cardiopulmonary system, an artificial cardiopulmonary pump drive device that drives an artificial cardiopulmonary pump that circulates blood in an artificial cardiopulmonary circuit including the artificial lung is used. Patent Documents 1 to 3 disclose a heart-lung machine or a drive unit for a heart-lung pump used in a heart-lung system.

  In Patent Document 1, a completely portable artificial heart-lung system is disclosed. This artificial heart-lung system is configured as an apparatus for use in an environment outside a hospital as an emergency life support apparatus. On the other hand, the heart-lung machine system disclosed in Patent Document 2 or Patent Document 3 is configured as an apparatus for use in an operating room in a hospital.

  Note that Patent Document 2 discloses an electronic data monitoring and data evaluation apparatus used with an artificial heart-lung system arranged in an operating room. This electronic data monitoring / data evaluation apparatus is divided into a data monitoring / data storage part arranged in the operating room together with the heart-lung machine system and a data evaluation part arranged in another room different from the operating room. The data evaluation part is configured as a general personal computer having an access keyboard and a screen. Data acquired in the data monitoring and data storage part during operation of the oxygenator system is stored in a storage card which is a movable data storage part. Then, the storage card is taken out from the data monitoring / data storage part and used by being connected to a data evaluation part arranged in a separate room from the operating room.

  Further, Patent Document 3 discloses a driving device for an artificial heart lung pump configured as a common driving device for a roller pump and a centrifugal pump which are artificial heart lung pumps. The artificial cardiopulmonary pump driving apparatus includes a motor outlet for selectively connecting a roller pump motor plug and a centrifugal pump motor plug, and a roller pump or a centrifugal pump motor connected to the motor outlet. And a motor control unit for controlling the motor.

JP-T 62-500006 JP-A-7-364 JP 2000-42097 A

  The artificial heart-lung system disclosed in Patent Document 1 is completely portable, and can be used in situations where blood circulation assistance is required in an emergency such as in an ambulance. However, the drive device for the heart-lung machine pump used in the heart-lung machine disclosed in Patent Document 1 is not a digital control system and requires skill in handling. Therefore, it is desired to realize an artificial heart-lung pump driving device that can be used in situations where blood circulation assistance is required in an emergency and is easy to handle.

  On the other hand, the driving device for the heart-lung machine pump used in the heart-lung machine system disclosed in Patent Document 2 and the driving device for the heart-lung machine pump disclosed in Patent Document 3 are assumed to be used in an operating room of a hospital, It is not a portable configuration. Therefore, the above-mentioned artificial heart-lung pump driving device cannot cope with a situation where blood circulation assistance is required in an emergency such as in an ambulance. Therefore, it is desired to realize a driving device for an artificial heart lung pump that can be used in an operating room of a hospital and can be used in a situation where blood circulation assistance is required in an emergency.

  Note that Patent Document 2 discloses a configuration in which the data evaluation device can be arranged outside the operating room, but a configuration that enables the artificial heart-lung system itself to be used outside the operating room in an emergency is disclosed. Not. Patent Document 3 discloses a driving device for an artificial heart lung pump that can be driven alternatively by either a roller pump or a centrifugal pump. However, in an emergency, the artificial heart lung system itself should be used outside the operating room. A configuration that enables this is not disclosed.

  In view of the above circumstances, the present invention is easy to handle, can be used in an operating room, can also realize a portable structure, and can easily cope with situations where blood circulation assistance in an emergency is necessary. It is an object of the present invention to provide a drive device for an artificial heart-lung pump capable of performing the above.

  A device for driving an oxygenator according to the first aspect of the invention for achieving the above object is used for an oxygenator system, and is used for an oxygenator system for driving an oxygenator pump that circulates blood through an oxygenator circuit including an oxygenator. The present invention relates to a driving device. The driving apparatus for the heart-lung machine pump according to the first aspect of the invention includes a portable module unit that can be carried and a base unit to which the module unit is detachably connected. Furthermore, the module unit includes a motor that is incorporated in or connected to the module main body, which is the main body of the module unit, and drives the heart-lung machine pump, and the motor based on a command input from the outside. A control unit that controls the flow rate, a flow meter connection unit that is connected so as to be able to receive a detection signal of the flow meter with respect to a flow meter that detects a flow rate of blood flowing through the heart-lung machine circuit, and is detected by at least the flow meter A display unit provided as a display capable of displaying the flow rate of the blood, a base connection unit electrically connected to the base unit, and a module side battery built in the module body It is characterized by. Further, the base unit detects at least information related to blood in the cardiopulmonary circuit, and a power supply circuit that converts a current supplied from an external power supply to supply the module unit and a device provided in the base unit. Including a sensor connection portion connected to one sensor so as to be able to receive a detection signal of the sensor, and a module connection portion electrically connected to the module unit at the base connection portion. Features. Furthermore, the base unit outputs a detection signal of the sensor to the module unit.

  According to this configuration, the operating condition of the motor that drives the heart-lung machine pump is controlled by a control unit configured using a processor such as a CPU based on an external operation. The operator can adjust the operating conditions of the motor while checking the flow rate of blood flowing through the heart-lung machine circuit on the display. Therefore, an artificial heart-lung pump driving device that is easy to handle is constructed.

  Further, the module unit has a built-in module-side battery. The module unit is configured as a portable unit that can be carried by being disconnected from the base unit by disconnecting the base connection unit and the module connection unit. The module unit can drive the artificial heart-lung pump by driving the motor alone. For this reason, according to said structure, a portable structure can be implement | achieved and the drive device for artificial heart lung pumps which can respond easily also in the situation where the blood circulation assistance in emergency is required can be constructed | assembled.

  The base unit is provided with a power supply circuit, and is configured to be connectable to the module unit through electrical connection between the module connection portion and the base connection portion. Therefore, power can be supplied from the base unit to the module unit. Thus, the heart-lung machine pump can be driven by the motor of the module unit in a state where the base unit to which the module unit is connected is installed in the operating room. That is, the artificial heart-lung pump driving apparatus configured as described above can be used in an operating room. Further, the base unit receives a detection signal of a sensor that detects information related to blood in the heart-lung machine circuit, and outputs it to the module unit. For this reason, an operator who works in the operating room can grasp information about blood in the heart-lung machine circuit.

  Therefore, according to the above configuration, it is easy to handle, can be used in the operating room, can also realize a portable structure, and can easily cope with situations requiring assistance for blood circulation in an emergency. A drive device for a heart-lung machine pump can be provided.

  An artificial heart lung pump drive device according to a second aspect of the present invention is the artificial heart lung pump drive device of the first aspect, wherein the base connection portion and the module connection portion are arranged in a state where the module unit is mounted on the base unit. It is electrically connected.

  According to this configuration, the base connection portion and the module connection portion are electrically connected in a state where the module unit is mounted on the base unit. For this reason, the base unit and the module unit can be combined in a compact manner, and the arrangement space can be made more efficient in the operating room.

  A heart-lung machine pump drive device according to a third aspect of the present invention is the heart-lung machine pump drive unit of the first or second aspect, wherein the temperature of blood in the heart-lung machine circuit is detected as blood-related information as the sensor. At least one of a sensor and a level sensor that detects a liquid level of a blood storage tank included in the cardiopulmonary circuit as information on blood in the cardiopulmonary circuit is connected to the sensor connection unit. And

  According to this configuration, the temperature of the blood in the heart-lung machine circuit or the liquid level of the blood storage tank is detected as information related to the blood in the heart-lung machine circuit, and the detection signal is output to the module unit. For this reason, an operator who works in the operating room can grasp the temperature of the blood flowing through the heart-lung machine circuit or the liquid level of the blood storage tank.

  An artificial heart lung pump driving device according to a fourth aspect of the present invention is the artificial heart lung pump driving device according to any one of the first to third aspects of the present invention, further comprising a storage device connecting portion to which an external storage device is connected to the module unit. It is provided.

  According to this configuration, since the external storage device can be connected to the module unit, the information acquired by the module unit can be stored and stored in the external storage device.

  The artificial heart-lung pump driving apparatus according to a fifth aspect of the present invention is the artificial heart-lung pump driving apparatus according to any one of the first to fourth aspects of the invention, wherein the module unit is provided for backup as a display different from the display unit. A display unit is further provided.

  According to this configuration, since the backup display unit is further provided in the module unit, the operator can provide necessary information via the backup display unit even when the display unit as the main display has failed. I can grasp it.

  A heart-lung pump driving apparatus according to a sixth aspect of the present invention is the heart-lung pump driving apparatus according to any one of the first to fifth aspects of the invention, which is built into the base body which is the main body of the base unit. A base-side battery is further provided.

  According to this configuration, since the base side battery is built in the base unit, the electric energy stored in the base side battery can be supplied from the base unit to the motor of the module unit even when a power failure occurs in the operating room. Can do.

  An artificial heart-lung pump driving apparatus according to a seventh aspect of the present invention is the artificial heart-lung pump driving apparatus according to any one of the first to sixth aspects of the present invention, wherein an external input operation device that performs a command input operation on the base unit is provided. An operating device connecting portion to be connected is further provided.

  According to this configuration, since an external input operation device can be connected to the base unit, when used in the operating room, it is operated not via the module unit but via the external input operation device. Can do. For this reason, it is possible to operate the driving device for the heart-lung machine pump using an input operation device more suitable for operation in the operating room.

  An artificial heart-lung pump driving apparatus according to an eighth aspect of the present invention is the artificial heart-lung pump driving apparatus according to any one of the first to seventh aspects of the present invention, wherein a tube included in the artificial heart-lung circuit is clamped on the base unit. A clamp connecting portion connected to the clamp mechanism capable of regulating the flow of the clamp mechanism so as to be able to output a control signal for controlling the operation of the clamp mechanism, and flowing the tube based on the detection result of the flow meter When it is detected that air bubbles are mixed in the blood, the control unit of the module unit generates the control signal and controls the clamp mechanism via the base unit to restrict blood flow. It is characterized by that.

  According to this configuration, the clamp mechanism connected to the base unit can be operated by the control of the control unit of the module unit. Then, when it is detected that air bubbles are mixed in the blood flowing through the tube based on the detection result of the flow meter, the clamp mechanism is operated to prevent the air bubbles in the tube from entering the patient's body. be able to. For this reason, it is not necessary to construct a separate system for preventing air bubbles from entering the patient's body. That is, it is not necessary to construct a new system that includes a control device for controlling the operation of the clamp mechanism based on the detection result of the flow meter and is configured separately from the driving device for the artificial heart lung pump. Therefore, a configuration for preventing air bubbles from entering the patient's body can be constructed by using the artificial heart-lung pump driving apparatus, and can be realized with a simpler configuration.

  An artificial heart-lung pump driving apparatus according to a ninth aspect of the present invention is the artificial heart-lung pump driving apparatus according to any one of the first to eighth aspects of the present invention, wherein a tube included in the artificial heart-lung circuit is clamped on the base unit. A clamp connecting portion connected to the clamp mechanism capable of regulating the flow of the clamp mechanism so as to be able to output a control signal for controlling the operation of the clamp mechanism, and based on a detection result of the level sensor, When it is detected that the surface level is lower than a predetermined level, the control unit of the module unit generates the control signal and controls the clamp mechanism via the base unit, and blood flow Is regulated.

  According to this configuration, the clamp mechanism connected to the base unit can be operated by the control of the control unit of the module unit. Based on the detection result of the level sensor, the clamp mechanism is activated when a decrease in the liquid level of the blood storage tank is detected, and bubbles are sucked from the exposed tube as the liquid level decreases and enter the patient's body. Can be prevented. For this reason, it is not necessary to construct a separate system for preventing air bubbles from entering the patient's body. That is, it is not necessary to construct a system that includes a control device for controlling the operation of the clamp mechanism based on the detection result of the level sensor and is configured separately from the driving device for the artificial lung pump. Therefore, a configuration for preventing air bubbles from entering the patient's body can be constructed by using the artificial heart-lung pump driving apparatus, and can be realized with a simpler configuration.

  An artificial heart-lung pump driving apparatus according to a tenth aspect of the present invention is the artificial heart-lung pump driving apparatus according to any one of the first to ninth aspects, wherein the module unit and the base unit are connected. And a lock mechanism that locks and integrates one of the base units with the other.

  According to this configuration, in a state where the module unit and the base unit are connected, the lock unit is locked so that one of the module unit and the base unit is integrated with the other. For this reason, in a state where the base unit and the module unit are electrically connected, a stronger mechanical connection between them can be realized.

  According to the present invention, an artificial cardiopulmonary pump that is easy to handle, can be used in an operating room, can also realize a portable structure, and can easily cope with situations requiring blood circulation assistance in an emergency. A driving device can be provided.

1 is a block diagram showing an outline of a heart-lung machine system to which a drive unit for a heart-lung machine pump according to an embodiment of the present invention is applied. It is a front view which shows typically the drive device for artificial heart lung pumps shown in FIG. FIG. 3 is a front view schematically showing a state in which a module unit and a base unit are separated in the driving apparatus for the heart-lung machine shown in FIG. 2. It is a top view of the base unit of the drive device for artificial heart lung pumps shown in FIG. It is a bottom view of the module unit of the drive device for the heart-lung machine shown in FIG. It is a rear view of the drive device for artificial heart lung pumps shown in FIG. It is a block diagram which shows the apparatus connected to the drive device for artificial heart lung pumps shown in FIG. 2, and the drive device for artificial heart lung pumps. It is a block diagram which shows the structure of the module unit of the drive device for artificial heart lung pumps shown in FIG. It is a front view which shows the module unit of the drive device for artificial heart lung pumps shown in FIG. 2, Comprising: It is a figure which shows typically the state by which the screen was displayed on the display. It is a block diagram which shows the structure of the base unit of the drive device for artificial heart lung pumps shown in FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention can be widely applied as a driving device for an artificial heart lung pump that is used in an artificial heart lung system and drives an artificial heart lung pump that circulates blood in an artificial heart lung circuit including an artificial lung.

[Outline of the cardiopulmonary system]
FIG. 1 is a block diagram showing an outline of a heart-lung machine system 10 to which a drive unit 1 for a heart-lung machine according to an embodiment of the present invention is applied. The oxygenator pump drive apparatus 1 of this embodiment is used in an oxygenator system 10 and is configured as an apparatus for driving an oxygenator pump 12 that circulates blood in an oxygenator circuit 11 including an oxygenator 13.

  The oxygenator system 10 includes an oxygenator pump 12, an oxygenator 13, a blood storage tank 14, an autoclamp 16, a flow meter 17, a thermometer (temperature sensor) 18, driven by the oxygenator pump drive device 1 of the present embodiment, A level sensor 19 and the like are included.

  The heart-lung machine circuit 11 includes tubes (15a, 15b, 15c, 15d), and is configured as a blood circulation circuit that circulates blood between the patient 100 and the heart-lung machine system 10. The heart-lung machine circuit 11 is configured by connecting the patient 100, the blood storage tank 14, the heart-lung machine pump 12, and the heart-lung machine 13 with tubes (15a, 15b, 15c, 15d) so as to form a closed loop. ing.

  The tube (15a, 15b, 15c, 15d) is provided as a flexible transparent or translucent resin tube. And the tube 15a is installed so that the patient 100 and the blood storage tank 14 may be connected. The tube 15a is connected to the patient 100, for example, on the vein side of one thigh. The tube 15 b is installed so as to connect the blood storage tank 14 and the heart-lung machine pump 12. The tube 15 c is installed so as to connect the oxygenator pump 12 and the oxygenator 13. The tube 15d is installed so as to connect the oxygenator 13 and the patient 100. The tube 15d is connected to the patient 100, for example, on the artery side of the other thigh. In FIG. 1, the arrows of the tubes (15a, 15b, 15c, 15d) indicate the direction in which blood flows through the heart-lung machine circuit 11.

  The blood storage tank 14 is provided as a tank for storing blood that has flowed out from the vein side of the patient 100. In the blood storage tank 14, a level sensor 19 that detects the liquid level of blood stored in the blood storage tank 14 is installed. The level sensor 19 is provided as one of the sensors of this embodiment that detects information related to blood in the heart-lung machine circuit 11. The level sensor 19 detects the liquid level of the blood storage tank 14 as information related to blood in the artificial heart lung circuit 11.

  The level sensor 19 is configured, for example, as a sensor that detects whether the liquid level is equal to or higher than a predetermined liquid level or less than a predetermined liquid level and outputs the detection signal as an on / off signal. For example, the level sensor 19 outputs an ON signal as a detection signal when the liquid level of the blood storage tank 14 is lower than a predetermined liquid level, and the liquid level of the blood storage tank 14 is equal to or higher than the predetermined liquid level. In some cases, an off signal is output as a detection signal. Further, the level sensor 19 is connected to the later-described artificial heart-lung pump driving apparatus 1 so as to output the detection signal.

  The artificial heart-lung pump 12 is configured as a centrifugal blood pump driven by a later-described artificial heart-lung pump driving device 1. A housing (not shown) having an inlet port connected to the tube 15b and an outlet port connected to the tube 15c, and an impeller (not shown) rotatably supported in the housing are configured. Yes. The impeller has a driven magnet, and is configured to transmit the rotation of the motor 25 by magnetic coupling with a driving magnet attached to the motor 25 described later in the driving apparatus 1 for the heart-lung machine. As the impeller rotates, blood circulates through the artificial heart-lung circuit 11.

  The flow meter 17 is provided as a flow meter that detects the flow rate of blood flowing through the artificial heart-lung machine circuit 11. And in this embodiment, the form in which the flowmeter 17 was installed so that the flow volume of the blood which flows through the tube 15d which connects the artificial lung 13 and the patient 100 might be detected is illustrated. The flow meter 17 is configured as, for example, an ultrasonic flow meter that is attached to the tube 15d and detects the flow rate of blood flowing in the tube 15d from the outside of the tube 15d. The flow meter 17 is connected to a later-described artificial heart-lung pump driving apparatus 1 so that a detection signal of the flow meter 17 can be output.

  In addition to detecting the flow rate of blood flowing through the tube 15d, the flow meter 17 is configured to detect mixing of bubbles when ultrasonic waves are scattered in the tube 15d. The flow meter 17 outputs a detection signal relating to the flow rate of the blood to the heart-lung machine pump driving device 1 when the blood flow rate is detected, and outputs a bubble detection signal when the mixing of bubbles is detected. Is configured to do.

  The thermometer 18 is provided as a temperature sensor that detects the temperature of blood flowing through the heart-lung machine circuit 11. The thermometer 18 is provided as one of the sensors of the present embodiment that detects information related to blood in the heart-lung machine circuit 11. And the thermometer 18 detects the temperature of the blood in the heart-lung machine circuit 11 as information regarding the blood. Moreover, in this embodiment, the form with which the thermometer 18 was installed so that the temperature of the blood which flows through the tube 15c might be detected was illustrated. The thermometer 18 is connected to the tube 15c via the branch portion 20, and is configured to be able to detect the temperature of blood flowing through the tube 15c. The thermometer 18 is connected to a later-described artificial heart-lung pump driving apparatus 1 so as to be able to output a detection signal of the thermometer 18.

  The auto clamp 16 is provided as a clamp mechanism that can clamp the tube of the cardiopulmonary circuit 11 to restrict blood flow. That is, the auto clamp 16 is provided as a mechanism capable of regulating and blocking the flow of blood flowing through the tube by tightening the tube so as to sandwich the tube. And in this embodiment, the form with which the auto clamp 16 was installed so that the tube 15d could be clamped is illustrated. Further, the auto clamp 16 is installed downstream of the tube 15d in the blood flow direction with respect to the flow rate detection position by the flow meter 17.

  The auto clamp 16 includes a pair of clamp portions (16a, 16b), a spring, a solenoid mechanism, and the like that are slidably supported so as to be close to and away from each other. Then, the auto clamp 16 moves, for example, a pair of clamp portions (16a, 16b) that are biased in a direction away from each other by a spring so as to approach each other when the solenoid mechanism is excited. Thereby, the auto clamp 16 is configured to clamp the tube. Further, the auto clamp 16 is connected to a later-described artificial heart-lung pump driving apparatus 1 so as to operate based on a control signal input from the artificial heart-lung pump driving apparatus 1.

  The artificial lung 13 is configured to include a gas exchange unit for acting on the respiratory function of the patient 100. The oxygenator 13 takes out the carbon dioxide gas contained in the blood flowing in from the tube 15c, discharges it to the outside, takes in the external oxygen gas, exchanges the gas in the blood, and sends out this blood from the tube 15d. .

[Driver for artificial heart lung pump]
Next, the artificial heart-lung pump driving apparatus 1 of this embodiment will be described. FIG. 2 is a front view schematically showing the artificial heart-lung pump driving apparatus 1. FIG. 3 is a front view schematically showing a state where the module unit 21 and the base unit 22 are separated in the driving apparatus 1 for the artificial heart lung pump.

  As shown in FIGS. 2 and 3, the oxygenator / pulmonary pump driving apparatus 1 includes a module unit 21 and a base unit 22. The module unit 21 is provided as a portable device that can be carried by an operator. The base unit 22 is provided as a device to which the module unit 21 is detachably connected. In the state shown in FIG. 2, the module unit 21 and the base unit 22 are electrically and mechanically connected. In the state shown in FIG. 3, the electrical connection and the mechanical connection between the module unit 21 and the base unit 22 are released.

  When the artificial heart-lung pump driving apparatus 1 is used in the artificial heart-lung system 10 in a hospital operating room, the module unit 21 and the base unit 22 are usually used in a connected state. On the other hand, when the artificial heart-lung pump driving apparatus 1 is used in a situation where blood circulation assistance is required in an emergency such as in an ambulance, the artificial heart-lung pump driving apparatus 1 is used as a single module unit 21. . That is, the portable module unit 21 separated from the base unit 22 is carried to a place where it is used and used alone. The module main body 21a, which is the main body of the module unit 21, is provided with a carrying handle 21b.

  FIG. 4 is a plan view of the base unit 22. FIG. 5 is a bottom view of the module unit 21. FIG. 6 is a rear view of the artificial heart-lung pump driving apparatus 1 in a state where the module unit 21 and the base unit 22 are connected.

  As shown in FIG. 4, the base unit 22 is provided with a module connection portion 44 that is electrically connected to the module unit 21. On the other hand, as shown in FIG. 5, the module unit 21 is provided with a base connection portion 30 that is electrically connected to the base unit 22. The module connection portion 44 of the base unit 22 is electrically connected to the module unit 21 at the base connection portion 30. The base connection part 30 of the module unit 21 is electrically connected to the base unit 22 by the module connection part 44.

  The module connecting portion 44 of the base unit 22 is provided on the upper surface side of the housing in the base main body 22 a that is the main body of the base unit 22. On the other hand, the base connection portion 30 of the module unit 21 is provided on the lower surface side of the housing in the module main body 21 a of the module unit 21. As shown in FIGS. 2 and 6, the base connection unit 30 and the module connection unit 44 are electrically connected in a state where the module unit 21 is mounted on the base unit 22. In addition, planar pads 24 formed of an elastic member such as rubber are attached to the lower surface of the module main body 21a of the module unit 21 at a plurality of locations. When the module unit 21 is mounted on the base unit 22, the impact is absorbed by the plurality of pads 24 between the lower surface of the module main body 21a and the upper surface of the base main body 22a.

  Further, both the base connection part 30 of the module unit 21 and the module connection part 44 of the base unit 22 are configured to include a plurality of connectors. The same number of connectors of the base connection unit 30 and the connectors of the module connection unit 44 are provided, and are configured to be connected correspondingly. For example, one of the connector of the corresponding base connection part 30 and the connector of the module connection part 44 is configured as a plug-type connector, and the other is configured as a socket-type connector. And both connectors are electrically connected by fitting each other.

  In addition, various signals described below are transmitted and received between the module unit 21 and the base unit 22 through the connection between the predetermined connector of the base connection unit 30 and the predetermined connector of the module connection unit 44. In addition, power is supplied from the base unit 22 to the module unit 21 through a connection between a predetermined connector of the base connection unit 30 and a predetermined connector of the module connection unit 44.

  As shown in FIG. 4, the module connection portion 44 is provided so as to be slidable in a predetermined direction with respect to the housing of the base unit 22. In FIG. 4, the module connecting portion 44 is located along the front-rear direction of the base unit 22, which is the direction indicated by the arrow A, with respect to the casing of the base unit 22, that is, in front of the base unit 22 ( The form supported so that a slide movement is possible along the direction perpendicular | vertical to the surface shown and the back surface (surface shown by FIG. 6) is illustrated. Thereby, in the driving device 1 for the artificial heart lung pump, when the module unit 21 is connected to the base unit 22, the position of the module connecting portion 44 is adjusted in the front-rear direction of the base unit 22, and the connection work is easily performed. It is configured as follows.

  The artificial heart-lung pump driving apparatus 1 is provided with a lock mechanism 23. The lock mechanism 23 is provided as a mechanism that locks and integrates one of the module unit 21 and the base unit 22 while the module unit 21 and the base unit 22 are connected. That is, the lock mechanism 23 mechanically couples the module unit 21 and the base unit 22 while fixing the other to one of the module unit 21 and the base unit 22 in a state where the module unit 21 and the base unit 22 are electrically connected. It is provided as a mechanism for maintaining the state.

  The lock mechanism 23 includes a module side lock portion 23 a provided in the module unit 21 and a base side lock portion 23 b provided in the base unit 22. In the present embodiment, a plurality of module side lock portions 23a and a plurality of base side lock portions 23b are provided, and the same number is provided. As shown in FIGS. 4 and 5, in the present embodiment, the lock mechanism 23 provided with four module side lock portions 23 a and four base side lock portions 23 b is illustrated.

  One module-side lock portion 23 a is provided in the front-rear direction on each lower end side of each side surface of the housing of the module unit 21. Each module-side lock portion 23 a is provided so as to protrude toward both sides of the housing of the module unit 21. Furthermore, an engagement convex portion that can be engaged with each base-side lock portion 23b is provided on the tip side of each module-side lock portion 23a.

  One base-side lock portion 23b is provided in the front-rear direction at both edge portions on the upper surface of the base unit 22 casing. Each base-side lock portion 23b is provided with a support portion 23c and a swing connecting portion 23d (see FIG. 3). The support portion 23 c is fixed to the upper surface of the casing of the base unit 22. One end side of the swing connecting portion 23d is supported so as to be swingable in the rotation direction with respect to the support portion 23c, and the other end side is configured to be engaged and connected to the module side lock portion 23a. .

  The base side lock portion 23b is provided with, for example, an engagement portion, a spring, and a spring release lever that are not shown. The engaging portion is slidably provided at the support portion 23c, and is fixed by engaging the swing connecting portion 23d with the support portion 23c at a position where the swing connecting portion 23d engages with the module side lock portion 23a. It is provided as a member to do. The spring is provided as an elastic member that urges the engaging portion in a direction in which the swing coupling portion 23d is fixed to the support portion 23c. The spring release lever is provided as an operation unit that can be operated by an operator to release the urging force of the spring that urges the engaging portion in a direction to fix the swing coupling portion 23d to the support portion 23c. It has been.

  When the module unit 21 is locked and fixed to the base unit 22, the operator swings the swing connecting portion 23d in the rotation direction with respect to the support portion 23c and engages the module side lock portion 23a. In this state, the engaging portion urged by the spring is fixed so that the swing coupling portion 23d cannot swing relative to the support portion 23c. This operation is performed on all the module side lock portions 23a and the base side lock portions 23b. Thereby, the engagement state of the module side lock part 23a and the base side lock part 23b is maintained, and the module unit 21 is locked to the base unit 22.

  On the other hand, when the lock between the base unit 22 and the module unit 21 is released, the operator operates the spring release lever and swings in a state in which the urging force of the spring that urges the engaging portion is released. The connecting portion 23d is swung in the rotational direction with respect to the support portion 23c. As a result, the engagement between the module side lock portion 23a and the base side lock portion 23b is released. This operation is performed on all the module side lock portions 23a and the base side lock portions 23b. Thereby, the lock between the module unit 21 and the base unit 22 is released, and the module unit 21 can be separated from the base unit 22 and carried.

[Module unit]
Next, the module unit 21 will be described in more detail. FIG. 7 is a block diagram showing the artificial heart-lung pump driving apparatus 1 and devices connected to the artificial heart-lung pump driving apparatus 1. FIG. 8 is a block diagram showing the configuration of the module unit 21. 2, 3, and 5 to 8 include a motor 25, a motor driver 26, a control unit 27, a flow meter connection unit 28, a main display 29, the above-described base connection unit 30, and a module-side battery 31. , A storage device connection unit 32, a sub display 33, a power supply board 34, an A / D conversion unit 35, a main display driver 36, a sub display driver 37, and the like.

  The motor 25 is configured as an electric motor that drives the heart-lung machine 12. In this embodiment, the motor 25 is incorporated in the module main body 21a. The motor 25 may be provided separately from the module main body 21a and electrically connected to the module main body 21a via a cable. The motor 25 may be configured as a direct current motor or an alternating current motor.

  The motor 25 is incorporated in the module main body 21a with the joint portion 25a connected to the oxygenator pump exposed from the back surface of the module main body 21a (see FIG. 6). The motor 25 is provided with a drive magnet (not shown) that is magnetically coupled to a driven magnet incorporated in the heart-lung pump 12 by connecting the joint portion 25a to the heart-lung pump 12. Yes. The motor 25 is driven via the motor driver 26 based on a command signal from the control unit 27, thereby driving the heart-lung machine pump 12 via the magnetic coupling described above.

  The electrical energy for driving the motor 25 is supplied from the module side battery 31 via the power supply board 34 and the motor driver 26 when the module unit 21 is used alone. On the other hand, when the module unit 21 is used while being connected to the base unit 22, the electric energy for driving the motor 25 is transmitted from the base unit 22 via the base connection portion 30, the power supply board 34 and the motor driver 26. Supplied.

  The motor driver 26 drives the motor 25 based on a command signal from the control unit 27. For example, the motor driver 26 controls the rotation speed (rotation speed) and torque current of the motor 25 based on a command signal from the control unit 27. When the motor 25 is an AC motor, the motor driver 26 is provided with an inverter.

  The control unit 27 is configured by a processor provided as a CPU (Central Processing Unit). And the control part 27 controls the motor 25 via the motor driver 26 based on the operation input of the command from the outside by the operator. The operation input of the command from the outside by the operator is performed by the operator rotating the motor operation dial 38 provided on the front side of the module main body 21a.

  For example, when the operator turns the motor operation dial 38 in a predetermined direction, the rotation speed of the motor 25 changes so as to increase, and the flow rate of blood sent to the tube 15c of the cardiopulmonary circuit 11 increases. Will do. On the other hand, when the operator turns the motor operation dial 38 in the direction opposite to the predetermined direction, the rotational speed of the motor 25 changes so as to be reduced, and the flow rate of blood sent to the tube 15c decreases. It will be.

  The control unit 27 is also configured to control display on the main display 29 and the sub display 33, control of the operation of the auto clamp 16, and the like.

  The flow meter connection unit 28 is configured as a communication port connected to the flow meter 17 so as to be able to receive a detection signal of the flow meter 17. A detection signal related to the blood flow detected by the flow meter 17 is input to the flow meter connection unit 28 as an analog signal. The detection signal as an analog signal is converted into a digital signal by an A / D conversion unit (analog / digital conversion unit) 35. The detection signal of the flow meter 17 converted into a digital signal by the A / D conversion unit 35 is input to the control unit 27.

  The main display 29 is provided as a display capable of displaying at least the blood flow detected by the flow meter 17, and constitutes a display unit of the present embodiment. The main display 29 is controlled to display a screen for displaying a blood flow rate and the like by a main display driver 36 that operates based on a command signal from the control unit 27. The operator can grasp the flow rate of blood circulating in the artificial heart-lung circuit 11 by checking the flow rate of blood displayed on the main display 29. Then, the operator operates the motor operation dial 38 while confirming the display on the main display 29, and adjusts the flow rate of the blood circulating through the heart-lung machine circuit 11 to a desired flow rate.

  The sub display 33 is provided as a display different from the main display 29, and constitutes a backup display unit of the present embodiment. That is, the sub-display 33 is provided as a backup display when a failure occurs in the main display 29. Further, the sub display 33 displays a screen even when the main display 29 is operating normally. Then, the sub display 33 displays, for example, a battery remaining amount that is a remaining amount of electric energy stored in the module-side battery 31. The sub display 33 is controlled by a sub display driver 37 that operates based on a command signal from the control unit 27 so as to display a screen for displaying the remaining battery level and the like.

  FIG. 9 is a front view showing the module unit 21, and is a diagram schematically illustrating a state in which a screen is displayed on the main display 29 and the sub display 33. In the main display 29 shown in FIG. 9, “4.3 L / min” is displayed as the blood flow rate, and a bar-shaped level display as an image display corresponding to the blood flow rate is displayed. . Further, in the sub-display 33 shown in FIG. 9, a form in which “90%” is displayed as the remaining battery level is illustrated. The module unit 21 includes a timer (not shown). Based on the time measured by the timer, the control unit 27 controls the main display 29 or the sub display 33 to display the time or work. The time from the start may be displayed.

  The main display 29 is configured as a touch panel that can be pressed on the display, for example. The module unit 21 displays a screen to be displayed on the main display 29 based on the control of the control unit 27 and the main display driver 36 when an input operation by the operator is performed on the main display 29 as a touch panel. Switching is performed. Thereby, the operator can display a screen other than the screen for displaying the blood flow rate on the main display 29. For example, the operator performs an operation of switching the screen displayed on the main display 29, so that the controller 27 controls the control unit 27 based on the operation state of the motor 25, the state of the module battery 31, the detection signal of the flow meter 17, and the like. A screen for displaying the detected alarm signal or a screen for changing various settings of the module unit 21 can be confirmed.

  The module side battery 31 is built in the module main body 21a, and is configured as, for example, a lithium ion battery. In a state where the module unit 21 is connected to the base unit 22, the electric energy supplied from the base unit 22 to the base connection unit 30 is controlled by the power supply board 34 and stored in the module-side battery 31. The electric energy stored in the module-side battery 31 is supplied to the motor driver 26, the control unit 27, the A / D conversion unit 35, the main display 29, the sub display 33, the main display driver 36, and the sub display by the power supply board 34. Supplied to the driver 37 and the like. In FIG. 8, the illustration of the electric energy supply path from the power supply board 34 to each of the above devices (26, 27, 29, 33, 35, 36, 37) is omitted.

  The storage device connection unit 32 is configured as a communication port to which the external storage device 39 is connected. For example, the storage device connection unit 32 is provided as a USB (Universal Serial Bus) port. In the present embodiment, a module unit 21 provided with a plurality of storage device connection sections 32 as USB ports is illustrated (see FIGS. 2, 3, and 9). The external storage device 39 is configured as a semiconductor memory such as a USB memory, for example. For example, data relating to the blood flow detected by the flow meter 17 is stored in the external storage device 39 connected to the storage device connection unit 32 under the control of the control unit 27 based on the touch panel operation by the operator on the main display 29. Is done.

[Base unit]
Next, the base unit 22 will be further described. FIG. 10 is a block diagram showing the configuration of the base unit 22. The base unit 22 shown in FIGS. 2 to 4, 6, 7, and 10 includes a power supply board 41, a switching power supply 42, a sensor connection portion 43, the module connection portion 44 described above, a base side battery 45, and an operation device connection portion. 46, a clamp connection unit 47, an A / D conversion unit 48, a display 49, a display driver 50, and the like.

  The switching power supply 42 and the power supply substrate 41 constitute a power supply circuit according to this embodiment that converts a current supplied from an AC power supply 40 that is an external power supply to supply to the device provided in the base unit 22 and the module unit 21. Yes. In the present embodiment, the switching power supply 42 is provided as a power supply circuit that converts an alternating current into a direct current. On the other hand, the power supply board 41 is provided as a power supply circuit that generates a current that flows at a voltage required for each device and module unit 21 provided in the base unit 22. The AC power supply 40 is configured as a power supply provided in the operating room. In a state in which the module unit 21 is connected to the base unit 22, the electrical energy in which the current and voltage are converted from alternating current to direct current by the switching power supply 42 is controlled via the module connection portion 44 by the control of the power supply substrate 41. To be supplied.

  In addition, the electric energy supplied from the AC power source 40 and converted from AC to DC by the switching power source 42 is supplied to the base unit 22 such as the A / D converter 48, the display 49, and the display driver 50 by the power supply substrate 41. Supplied to the equipment provided in In FIG. 10, the illustration of the electric energy supply path from the power supply board 41 to each of the devices (48, 49, 50) is omitted.

  The electric energy supplied from the AC power supply 40 and converted from AC to DC by the switching power supply 42 is also supplied to the base side battery 45 and stored in the base side battery 45 under the control of the power supply board 41. The The base side battery 45 provided in the base unit 22 is built in the base main body 22a. The base side battery 45 is configured as a lead storage battery, for example. The base side battery 45 is provided as a backup power source for dealing with a case where a power failure occurs in the operating room and the function of the AC power source 45 is stopped. When the AC power supply 45 stops functioning, the electrical energy stored in the base-side battery 45 is supplied to each device of the module unit 21 and the base unit 22.

  In the present embodiment, the sensor connection unit 43 is connected to the thermometer 18, the level sensor 19, and the pressure gauge (pressure sensor) 51 so as to receive detection signals from the thermometer 18, the level sensor 19, and the pressure gauge. It is configured as a communication port. In the heart-lung machine system 10 shown in FIG. 1, the pressure gauge 51 is not shown. However, as shown in FIG. 7, the pressure gauge 51 is connected to the heart-lung machine pump driving device 1. May be. The pressure gauge 51 is provided as a pressure sensor that detects the pressure of blood flowing through the artificial heart lung circuit 11. And the pressure gauge 51 is connected to the tube 15c via the branch part 20, for example, and is comprised so that the pressure of the blood which flows through the tube 15c can be detected. In the present embodiment, in addition to the thermometer 18 and the level sensor 19, the pressure gauge 51 is also provided as one of the sensors of the present embodiment that detects information related to blood in the heart-lung machine circuit 11. And the pressure gauge 51 detects the pressure of the blood in the heart-lung machine circuit 11 as information regarding the blood.

  As the sensor connection portion 43, a thermometer sensor connection portion 43a, a pressure gauge sensor connection portion 43b, and a level sensor sensor connection portion 43c are provided. A plurality of thermometer sensor connection portions 43a are provided, and FIG. 6 illustrates an example in which five channels are provided. Therefore, in this embodiment, five thermometers can be connected to the base unit 22. Then, when the thermometer 18 is connected to the thermometer sensor connection portion 43 a, a detection signal related to the blood temperature detected by the thermometer 18 is input to the base unit 22.

  A plurality of pressure gauge sensor connection portions 43b are provided, and FIG. 6 illustrates an example in which five channels are provided. Therefore, in the case of this form, five pressure gauges can be connected to the base unit 22. And the detection signal regarding the pressure of the blood detected with the pressure gauge 51 is input into the base unit 22 by connecting the pressure gauge 51 to the sensor connection part 43b for pressure gauges.

  In addition, the detection signal input from the sensor connection part 43a for thermometers and the detection signal input from the sensor connection part 43b for pressure gauges are input as an analog signal. These detection signals as analog signals are converted into digital signals by an A / D conversion unit (analog / digital conversion unit) 48. The detection signal of the thermometer 18 and the detection signal of the pressure gauge 51 converted into a digital signal by the A / D conversion unit 48 are transmitted to the module unit 21 via the module connection unit 44 and the base connection unit 30 connected to each other. Input to the control unit 27. That is, the base unit 22 is configured to output the detection signal of the thermometer 18 and the detection signal of the pressure gauge 51 to the module unit 21. The module unit 21 displays the blood temperature detected by the thermometer 18 and the blood pressure detected by the pressure gauge 51 on the main display 29 based on the input detection signals of the thermometer 18 and pressure gauge 51. It is also configured to be displayable.

  A plurality of level sensor connection portions 43c are provided, and FIG. 6 illustrates a configuration in which two channels are provided. Therefore, in this embodiment, two level sensors can be connected to the base unit 22. Then, a detection signal relating to the liquid level of the blood storage tank 14 as an on / off signal detected by the level sensor 19 is input to the base unit 22. And the detection signal of the level sensor 19 is input into the control part 27 of the module unit 21 through the module connection part 44 and the base connection part 30 which were mutually connected. That is, the base unit 22 is configured to output the detection signal of the level sensor 19 to the module unit 21. The module unit 21 can display on the main display 29 whether there is a liquid level lowering abnormality that causes the liquid level of the blood storage tank 14 to be lower than a predetermined liquid level based on the input detection signal of the level sensor 19. It is also configured.

  The operation device connection unit 46 is configured as a communication port to which an external control panel 52, which is an external input operation device that performs command input operations, is connected. The external control panel 52 may be configured as various types of input operation devices. For example, the external control panel 52 may be configured as an input operation device having a touch panel. Further, the external control panel 52 may be configured as a personal computer provided with a keyboard, a pointing device, and the like as input devices.

  In addition, a command input to the base unit 22 from the external control panel 52 is input to the control unit 27 of the module unit 21 via the module connection unit 44 and the base connection unit 30 connected to each other. In the module unit 21, an operation based on a command input from the external control panel 52 is executed under the control of the control unit 27. As described above, in a state where the external control panel 52 is connected to the operation device connection unit 46, the operator can perform an operation using the external control panel 52 in addition to the operation using the main display 29. In the state where the external control panel 52 is connected to the operation device connection unit 46, the operation by the external control panel 52 may be prioritized over the operation by the main display 29.

  The clamp connection portion 47 is configured as a communication port connected to the auto clamp 16 so that a control signal for controlling the operation of the auto clamp 16 can be output from the base unit 22 to the auto clamp 16. And in the state where the auto clamp 16 is connected to the clamp connection part 47, when the control part 27 detects that air bubbles are mixed in the blood flowing through the tube 15d based on the detection result of the flow meter 17, The control signal for operating the auto clamp 16 is generated.

  More specifically, when the module unit 21 receives a bubble detection signal from the flow meter 17, the control unit 27 is disposed downstream of the flow meter 17 in the cardiopulmonary circuit 11 via the base unit 22. The auto clamp 16 is controlled so that the clamped auto clamp 16 performs the clamping operation. That is, the control unit 27 outputs a control signal for exciting the solenoid mechanism of the auto clamp 16 to the auto clamp 16 via the base connection unit 30, the module connection unit 44 and the clamp connection unit 47.

  As described above, the tube 15d is clamped by the auto clamp 16, and the flow of blood flowing through the tube 15d is regulated. As a result, air bubbles mixed in blood flowing through the tube 15d are prevented from being sent to the patient 100.

  The control unit 27 also operates the above-described control signal for operating the auto clamp 16 when it is detected based on the detection result of the level sensor 19 that the liquid level of the blood storage tank 14 is lower than a predetermined level. Is generated.

  More specifically, when an ON signal as a detection signal for detecting that the liquid level of the blood storage tank 14 is lower than a predetermined liquid level is output from the level sensor 19 to the base unit 22, this signal is The signal is input to the control unit 27 via the module connection unit 44 and the base connection unit 30. Then, the control unit 27 controls the auto clamp 16 via the base unit 22 so that the auto clamp 16 disposed on the downstream side of the blood storage tank 14 in the oxygenator circuit 11 performs a clamping operation. That is, the control unit 27 outputs a control signal for exciting the solenoid mechanism of the auto clamp 16 to the auto clamp 16 via the base connection unit 30, the module connection unit 44 and the clamp connection unit 47.

  As described above, the tube 15d is clamped by the auto clamp 16, and the flow of blood flowing through the tube 15d is regulated. As a result, even if bubbles are sucked into the tube 15b as the liquid level of the blood storage tank 14 is lowered, the bubbles are prevented from being sent to the patient 100.

  The display 49 is provided as a display that displays the status of the device connected to the base unit 22. For example, detection results detected by the thermometer 18, the pressure gauge 51, and the level sensor 19 are displayed on the display 49 under the control of the display driver 50.

[Function and effect of the drive unit for the artificial heart lung pump]
As described above, according to the present embodiment, the operating condition of the motor 25 for driving the heart-lung machine pump 12 is determined by the control unit 27 configured using a processor provided as a CPU based on an external operation. It is controlled via the driver 26. Then, the operator can adjust the operating condition of the motor 25 while confirming the flow rate of blood flowing through the heart-lung machine circuit 11 on the main display 29. Therefore, an artificial heart-lung pump driving apparatus 1 that is easy to handle is constructed.

  Further, the module unit 21 includes a module-side battery 31. The module unit 21 is configured as a portable unit that can be carried by being disconnected from the base unit 22 after the connection between the base connection unit 30 and the module connection unit 44 is released. The module unit 21 can drive the artificial heart-lung pump 12 by driving the motor 25 alone. For this reason, according to the present embodiment, it is possible to construct the artificial heart-lung pump driving apparatus 1 that can realize a portable structure and can easily cope with a situation where blood circulation assistance is required in an emergency.

  The base unit 22 includes a switching power supply 42 and is configured to be connectable to the module unit 21 via an electrical connection between the module connection unit 44 and the base connection unit 30. For this reason, power can be supplied from the base unit 22 to the module unit 21. Thus, the heart-lung machine pump 12 can be driven by the motor 25 of the module unit 21 with the base unit 22 connected to the module unit 21 installed in the operating room. That is, the artificial heart-lung pump driving apparatus 1 can be used in the operating room. Further, the base unit 22 receives detection signals from sensors (thermometer 18, level sensor 19, pressure gauge 51) that detect information related to blood in the heart-lung machine circuit 11, and outputs it to the module unit 21. For this reason, an operator who performs work in the operating room can grasp information related to blood in the heart-lung machine circuit 11.

  Therefore, according to the present embodiment, it is easy to handle, can be used in the operating room, can also realize a portable structure, and can easily cope with situations where blood circulation assistance is required in an emergency. A drive unit 1 for an artificial heart lung pump can be provided.

  Further, according to the artificial heart lung pump driving device 1, the base connection unit 30 and the module connection unit 44 are electrically connected in a state where the module unit 21 is mounted on the base unit 22. For this reason, the base unit 22 and the module unit 21 can be combined in a compact manner, and the arrangement space can be made more efficient in the operating room.

  In addition, according to the driving apparatus 1 for the heart-lung machine pump, the temperature of the blood in the heart-lung machine circuit 11 or the liquid level of the blood storage tank 14 is detected as information on the blood in the heart-lung machine circuit 11, and the detection signal is used as the module unit. 21 is output. For this reason, an operator working in the operating room can grasp the temperature of the blood flowing through the artificial heart-lung circuit 11 or the liquid level of the blood storage tank 14.

  Further, according to the driving apparatus 1 for the artificial heart lung pump, the module connecting portion 44 on the upper surface side of the base unit 22 and the base connecting portion 30 on the lower surface side of the module unit 21 in a state where the module unit 21 is mounted on the base unit 22. Are electrically connected. For this reason, in the state which combined the base unit 22 and the module unit 21 mechanically, those electrical connections can also be completed. That is, it is possible to realize a form with excellent work efficiency that can achieve both mechanical connection and electrical connection of the base unit 22 and the module unit 21 by one or a series of connection operations. Moreover, the wiring for electrically connecting the base unit 22 and the module unit 21 can be omitted. Thereby, the wiring connection work can be reduced. Furthermore, it is possible to reduce the number of wirings arranged in the vicinity of the heart-lung machine pump drive device 1 and to prevent the wiring from interfering with the work or forming a dead space where the wiring is incapable of working. can do.

  Further, according to the oxygenator / pulmonary pump driving apparatus 1, the external storage device 39 can be connected to the module unit 21, so that the information acquired by the module unit 21 can be stored and stored in the external storage device 39.

  Further, according to the artificial heart-lung pump driving apparatus 1, the module unit 21 is further provided with the sub-display 33, so that even if a failure of the main display 29 occurs, the operator is required via the sub-display 33. Can grasp the information.

  Further, according to the artificial heart lung pump driving apparatus 1, since the base side battery 45 is built in the base unit 22, even if a power failure occurs in the operating room, the electric energy stored in the base side battery 45 is used as a base. Power can be supplied from the unit 22 to the motor 25 of the module unit 21.

  In addition, according to the driving apparatus 1 for the heart-lung machine, since the external control panel 52 that is an external input operation device can be connected to the base unit 22, when used in the operating room, the module unit 21 is used. Instead, it can be operated via the external control panel 52. For this reason, the artificial cardiopulmonary pump drive device 1 can be operated using an input operation device more suitable for operation in the operating room.

  In addition, according to the artificial heart lung pump drive device 1, the auto clamp 16 connected to the base unit 22 can be operated by the control of the control unit 27 of the module unit 21. Then, when it is detected that air bubbles are mixed in the blood flowing through the tube 15 d based on the detection result of the flow meter 17, the auto clamp 16 is activated, and the air bubbles in the tube 15 d enter the body of the patient 100. Can be prevented. For this reason, it is not necessary to construct a separate system for preventing air bubbles from entering the body of the patient 100. That is, it is not necessary to construct a system that includes a control device for controlling the operation of the auto clamp 16 based on the detection result of the flow meter 17 and is configured separately from the artificial heart lung pump drive device 1. Therefore, a configuration for preventing air bubbles from entering the body of the patient 100 can be constructed using the artificial heart lung pump driving device 1 and can be realized with a simpler configuration.

  Further, according to the driving device 1 for the artificial heart lung pump, when the decrease in the liquid level of the blood storage tank 14 is detected based on the detection result of the level sensor 19, the auto clamp 16 is controlled by the control unit 27 of the module unit 21. Can be activated. As a result, according to the artificial heart lung pump driving device 1, bubbles are sucked from the tube 15 b exposed at the upper part of the liquid level in the blood storage tank 14 as the liquid level lowers and enters the body of the patient 100. Can be prevented. For this reason, it is not necessary to construct a separate system for preventing air bubbles from entering the body of the patient 100. That is, it is not necessary to construct a system that includes a control device for controlling the operation of the auto clamp 16 based on the detection result of the level sensor 19 and that is configured separately from the artificial heart lung pump drive device 1. Therefore, a configuration for preventing air bubbles from entering the body of the patient 100 can be constructed using the artificial heart lung pump driving device 1 and can be realized with a simpler configuration.

  Further, according to the artificial heart-lung pump driving device 1, the module unit 21 and the base unit 22 are connected to each other by the lock mechanism 23 while the module unit 21 and the base unit 22 are connected. Locked. For this reason, in a state where the base unit 22 and the module unit 21 are electrically connected, a stronger mechanical connection between them can be realized.

[Modification]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible as long as they are described in the claims. For example, the following modifications may be made.

(1) In the embodiment described above, an example in which a flow meter, a temperature sensor, and a level sensor are provided in the artificial heart-lung circuit to which the oxygenator pump drive device is applied has been described as an example. It does not have to be. In the heart-lung machine circuit to which the driving device for the heart-lung machine pump is applied, a form in which a plurality of flow meters, temperature sensors, and level sensors are provided may be implemented. In addition, a heart-lung machine pump drive device applied to a heart-lung machine not provided with any one of a temperature sensor and a level sensor may be implemented. Further, as a sensor for detecting information on blood in the heart-lung machine, a sensor other than the temperature sensor and the level sensor is provided, and the heart-lung machine pump applied to the heart-lung machine without the temperature sensor and the level sensor. A drive device may be implemented.

(2) In the above-described embodiment, the configuration in which the base connection portion and the module connection portion are electrically connected in a state where the module unit is mounted on the base unit has been described as an example. Good. For example, when the base unit and the module unit are combined side by side in the horizontal direction instead of the vertical direction, that is, by combining the base unit and the module unit side by side in the front-rear or left-right direction, the base connection unit and the module connection unit are electrically connected. A connected form may be actually used.

(3) In the above-described embodiment, the configuration in which the module connection portion is provided on the upper surface side of the base unit and the base connection portion is provided on the lower surface side of the module unit has been described as an example. . For example, a mode in which a module connection portion is provided on the side surface of the base unit and a base connection portion is provided on the side surface of the module unit may be implemented.

  INDUSTRIAL APPLICABILITY The present invention can be widely applied as a drive device for an artificial heart lung pump that is used in an artificial heart lung system and drives an artificial heart lung pump that circulates blood in an artificial heart lung circuit including the artificial lung.

DESCRIPTION OF SYMBOLS 1 Drive device for artificial heart lung pump 10 Artificial heart lung system 11 Artificial heart lung circuit 12 Artificial heart lung pump 14 Blood storage tank 15a, 15b, 15c, 15d Tube 17 Flow meter 18 Thermometer 19 Level sensor 21 Module unit 22 Base unit 25 Motor 26 Motor driver 27 Control unit 28 Flow meter connection unit 29 Main display (display unit)
30 Base connection part 31 Module side battery 42 Switching power supply 43 Sensor connection part 44 Module connection part

Claims (10)

A device for driving a heart-lung machine, which is used in a heart-lung machine system and drives a heart-lung machine pump that circulates blood in a heart-lung machine circuit including a heart-lung machine,
A portable module unit that can be carried, and a base unit to which the module unit is detachably connected;
The module unit is
A motor that is incorporated in or connected to the module body that is the body of the module unit and drives the heart-lung machine pump;
A control unit for controlling the motor based on an operation input of a command from the outside;
A flow meter connection unit connected to be able to receive a detection signal of the flow meter with respect to a flow meter for detecting a flow rate of blood flowing in the artificial heart lung circuit;
A display unit provided as a display capable of displaying at least the flow rate of blood detected by the flow meter;
A base connection portion electrically connected to the base unit;
A module-side battery built in the module body;
Including
The base unit is
A power supply circuit that converts a current supplied from an external power source to supply to the device provided in the base unit and the module unit;
A sensor connection unit connected to be able to receive a detection signal of the sensor with respect to at least one sensor that detects information about blood in the cardiopulmonary circuit;
A module connecting portion electrically connected to the module unit at the base connecting portion;
Including
The drive unit for an artificial heart lung pump, wherein the base unit outputs a detection signal of the sensor to the module unit. A device for driving an artificial heart lung pump according to claim 1,
The artificial heart-lung pump driving apparatus, wherein the base connection part and the module connection part are electrically connected in a state where the module unit is mounted on the base unit. The artificial cardiopulmonary pump drive device according to claim 1 or 2,
As the sensor, a temperature sensor that detects the temperature of blood in the heart-lung machine circuit as information about blood, and a liquid level of a blood storage tank included in the heart-lung machine circuit is detected as information about blood in the heart-lung machine circuit At least one of the level sensors to be connected is connected to the sensor connection unit. The artificial cardiopulmonary pump drive device according to any one of claims 1 to 3,
A drive unit for an artificial heart lung pump, wherein the module unit is further provided with a storage device connection part to which an external storage device is connected. The artificial cardiopulmonary pump drive device according to any one of claims 1 to 4,
A drive unit for a heart-lung machine pump, wherein the module unit is further provided with a backup display unit provided as a display different from the display unit. The artificial cardiopulmonary pump drive device according to any one of claims 1 to 5,
A drive unit for a heart-lung machine pump, wherein the base unit is further provided with a base side battery built in a base body which is a main body of the base unit. The artificial cardiopulmonary pump drive device according to any one of claims 1 to 6,
An artificial heart lung pump drive device, wherein the base unit is further provided with an operation device connection portion to which an external input operation device for performing an instruction input operation is connected. The artificial cardiopulmonary pump drive device according to any one of claims 1 to 7,
A clamp connecting portion connected to the base unit so as to be able to output a control signal for controlling the operation of the clamp mechanism to a clamp mechanism capable of clamping a tube included in the heart-lung machine circuit and regulating blood flow. Further provided,
When it is detected that air bubbles are mixed in the blood flowing through the tube based on the detection result of the flow meter, the control unit of the module unit generates the control signal and passes through the base unit. An artificial cardiopulmonary pump drive device characterized in that the clamp mechanism is controlled to restrict blood flow. The artificial cardiopulmonary pump drive device according to any one of claims 1 to 8,
A clamp connecting portion connected to the base unit so as to be able to output a control signal for controlling the operation of the clamp mechanism to a clamp mechanism capable of clamping a tube included in the heart-lung machine circuit and regulating blood flow. Further provided,
When it is detected that the liquid level of the blood storage tank is lower than a predetermined level based on the detection result of the level sensor, the control unit of the module unit generates the control signal and the base An artificial heart-lung pump driving apparatus, wherein the clamp mechanism is controlled through a unit to restrict blood flow. A drive device for an artificial heart lung pump according to any one of claims 1 to 9,
In the state in which the module unit and the base unit are connected, a lock mechanism that locks and integrates the other of the module unit and the base unit is further provided. Drive device for cardiopulmonary pump.

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