JP6904095B2 - Heart-lung machine pump drive - Google Patents

Description

The present invention relates to a heart-lung machine pump driving device that is used in a heart-lung machine system and drives a heart-lung machine pump that circulates blood in an artificial heart-lung machine including an artificial lung.

The heart-lung machine system includes a heart-lung machine including a heart-lung machine and a heart-lung machine pump that circulates blood in the heart-lung machine circuit. When driving this artificial heart-lung machine, an artificial heart-lung machine pump driving device is used (see, for example, Patent Documents 1 to 4).

In the artificial heart-lung machine pump drive device of Patent Document 1, an artificial heart-lung machine, a battery, and the like are housed in a portable carrying case.

The artificial heart-lung machine pump drive device of Patent Document 2 is used in an operating room. In rooms other than the operating room, a data evaluation device that evaluates electronic data of the heart-lung machine is placed, and data can be exchanged between the data evaluation device and the heart-lung machine pump drive device.

The artificial heart-lung machine pump drive device of Patent Document 3 is configured to be able to be connected to either a roller pump or a centrifugal pump.

The artificial heart-lung machine pump drive device of Patent Document 4 includes a portable module unit and a base unit to which the portable module unit is connected, and can be connected by sliding the portable module unit with respect to the base unit. It is configured. When the portable module unit coupled to the base unit is separated from the base unit, the lock can be released by operating the lock release lever provided on the base unit.

Special Table No. 62-500006 Japanese Unexamined Patent Publication No. 7-364 Japanese Unexamined Patent Publication No. 2000-42097 Japanese Unexamined Patent Publication No. 2015-167720

Since Patent Document 1 is portable, it is not suitable for long-term use in, for example, an operating room. Further, since Patent Documents 2 and 3 are not portable and are limited to use in an operating room, they cannot be used in an ambulance or the like, and their versatility is low.

Therefore, as in Patent Document 4, by dividing the artificial heart-lung machine pump drive device into a plurality of units, for example, an ambulance or the like uses a portable module unit, and a general operating room combines the portable module unit with a base unit. Therefore, it is used as a device suitable for long-term use.

However, when the portable module unit and the base unit are separably configured as in Patent Document 4, it is considered that the portable module unit and the base unit cannot be combined in a normal state.

More specifically, the lower portion of the portable module unit of Patent Document 4 is provided with a front protruding portion and a rear protruding portion on the front side and the rear side, respectively, and a slide member is provided on the upper portion of the base unit. On the upper surface of this slide member, a front recess and a rear recess into which the front protrusion and the rear protrusion are inserted are provided, respectively. Then, when the portable module unit and the base unit are to be connected by a normal joining method, the slide member is slid toward the front side of the base unit to expose the front recess and the posterior recess of the slide member upward. Then, the front protruding portion and the rear protruding portion of the portable module unit are inserted into the front recess and the rear recess of the slide member from above. Then, by pushing the portable module unit backward, the slide member is slid backward by the front protruding portion and the rear protruding portion. As a result, the front protruding portion and the rear protruding portion of the portable module unit are prevented from being separated from the front concave portion and the rear concave portion of the slide member, and the portable module unit is in a state of being coupled to the base unit.

The normal connection is as described above, but when operated by a person who is not accustomed to handling, or when both units are to be connected in a hurry, for example, the rear protruding part of the portable module unit is the base unit. It is conceivable that the slide member will be slid to the rear side as it is in the state where it is in the front side recess instead of the rear side recess. If this happens, the connection will be poor.

The present invention has been made in view of this point, and an object of the present invention is to slide the portable module unit with respect to the base unit in a state of being engaged with the slide member of the base unit. The purpose is to prevent poor bonding when the devices are combined.

In order to achieve the above object, in the present invention, the slide member is prevented from sliding toward the rear side when the rear engaging protrusion of the portable module unit is not inserted into the rear recess of the slide member. A stopper member is provided.

The first invention comprises a portable module unit and a base unit to which the portable module unit is detachably coupled to drive an artificial cardiopulmonary pump that circulates blood in an artificial cardiopulmonary circuit including an artificial lung. In the configured artificial cardiopulmonary pump drive device, the base unit includes a unit main body and a slide member that slides in the front-rear direction with respect to the unit main body in a state where the portable module unit is mounted. The member has a front recess and a rear recess open on the upper surface of the slide member, and the base unit has the front recess in a state where the slide member slides toward the rear side of the base unit. And the base unit side engagement, which is arranged so as to cover the rear concave portion from above, and is arranged so as to open the front concave portion and the rear concave portion in a state where the slide member slides toward the front side of the base unit. A joint portion and a stopper member for preventing the sliding operation of the slide member are provided, and the portable module unit is inserted into the front engaging protrusion inserted into the front recess and the rear engaging protrusion inserted into the rear recess. The rear engaging protrusion is formed so as to project downward, and the front engaging protrusion and the rear engaging protrusion are in a state where the slide member slides toward the rear side of the base unit. The stopper member is formed so as to engage with the base unit side engaging portion, and the stopper member has a slide blocking position that prevents the slide member that slides toward the front side of the base unit from sliding toward the rear side. , The slide member that slides toward the front side of the base unit is attached to the base unit so as to be switchable to a slide allowable position that allows the slide member to slide toward the rear side, and the rear engagement protrusion is described above. The stopper member at the slide blocking position is pressed to switch the stopper member to the slide allowable position.

According to this configuration, when the slide member of the base unit is slid toward the front side, the front recess and the posterior recess of the slide member are opened upward, so that the front side engagement of the portable module unit is engaged. The protrusion and the rear engagement protrusion can be easily inserted into the front recess and the rear recess. Before inserting the front engagement protrusion and the rear engagement protrusion of the portable module unit into the front recess and the rear recess, the stopper member is not pressed by the rear engagement protrusion, so that the slide blocking position The slide member does not slide toward the rear side.

Here, for example, if the rear engaging protrusion of the portable module unit is mistakenly inserted into the front recess of the slide member, the stopper member will not be pressed by the rear engaging protrusion, so that the slide blocking position Will remain. Therefore, since the slide member does not slide in an erroneous state, poor coupling does not occur.

On the other hand, in the normal state, that is, when the front engaging protrusion and the rear engaging protrusion of the portable module unit are inserted into the front recess and the rear recess of the slide member, respectively, the rear engaging protrusion is formed. The stopper member at the slide blocking position is pressed to switch the stopper member to the slide allowable position. As a result, the slide member can be slid toward the rear side while the portable module unit is mounted, so that the front side engaging protrusion and the rear side engaging protrusion are the base unit side engaging portions. Engage with and combine both units.

According to the second invention, in the first invention, the module connector is provided on the rear side of the base unit so that the connection direction is the front side and the module connector protrudes upward from the upper surface of the slide member. A base connector to be connected to the module connector is provided on the rear side of the portable module unit so that the connection direction is the rear side.
The module connection connector and the base connection connector are connected in a state where the portable module unit is coupled to the base unit.

That is, if the base unit and the portable module unit are poorly coupled, the module connector and the base connector are not connected, while if the base unit and the portable module unit are coupled, the module. The connector and the base connector are connected.

A third aspect of the invention is characterized in that, in the first or second invention, the stopper member is arranged so as to face the rear side recess of the slide member.

According to this configuration, since the stopper member is arranged so as to face the rear recess, the rear engaging protrusion of the portable module unit can be inserted into the rear recess of the slide member without requiring any special operation. It is possible to switch to the slide allowable position by pressing the stopper member just by pressing.

A fourth invention is characterized in that, in any one of the first to third inventions, the base unit is provided with an urging member that constantly urges the stopper member toward the slide blocking position. And.

According to this configuration, the stopper member can be reliably positioned at the slide blocking position.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the stopper member is provided on the slide member, and the base frame constituting the base unit is in the slide blocking position. A cutout portion in which the stopper member is arranged is formed, and the front side and the rear side of the stopper member at the slide blocking position abut on the front edge portion and the trailing edge portion of the notch portion, respectively.

According to this configuration, when the stopper member is in the slide blocking position, it is arranged in the notch portion of the base frame, and the front side and the rear side of the stopper member abut on the front edge portion and the trailing edge portion of the notch portion, respectively. Therefore, the slide member does not slide in both the front side and the rear side.

According to the first invention, a stopper member for preventing the slide member from sliding toward the rear side when the rear engaging protrusion of the portable module unit is not inserted into the rear recessed portion of the slide member is provided. Since it is provided, it is possible to prevent a poor connection between the portable module unit and the base unit.

According to the second invention, since the module connection connector and the base connection connector can be connected by connecting the base unit and the portable module unit, it is not necessary to separately perform the connector connection work.

According to the third invention, since the stopper member is arranged so as to face the rear recess of the slide member, the rear engaging protrusion of the portable module unit is simply inserted into the rear recess of the slide member. The stopper member can be pressed with the button to switch to the slide allowable position.

According to the fourth invention, by constantly urging the stopper member toward the slide blocking position by the urging member, poor coupling can be reliably prevented.

According to the fifth invention, the stopper member at the slide blocking position is arranged in the notch, and the front side and the rear side of the stopper member come into contact with the front edge portion and the trailing edge portion of the notch portion, respectively. , It is possible to prevent the slide member from moving in both the front side and the rear side.

It is a perspective view of the artificial heart-lung machine pump drive device which concerns on embodiment of this invention. It is a front view of the artificial heart-lung machine pump drive device. It is a left side view of the artificial heart-lung machine pump drive device. It is a figure corresponding to FIG. 2 in a state where both units are separated. It is a left side view of a module unit. It is a bottom view of a module unit. It is a perspective view which looked at the module unit from the bottom. It is a top view of the base unit. It is a block diagram of a module unit. It is a block diagram of a base unit. It is a perspective view which looked at the base unit from above. It is a perspective view which looked at the attachment / detachment mechanism from above. It is a perspective view which looked at the attachment / detachment mechanism from below. It is a perspective view which looked at the slide member from above. It is a perspective view which looked at the slide member from below. It is a perspective view which looked at the base frame from above. It is a perspective view which looked at the base frame from the bottom. It is an enlarged perspective view of the upper right side of the base unit which shows the case where a stopper member is in a slide blocking position. It is an enlarged perspective view of the upper right side of the base unit which shows the state which the stopper member is in a slide allowable position, and the slide member slides toward the rear side. It is a perspective view which looked at the stopper member from above. It is a perspective view which looked at the stopper member from below. It is a perspective view which looked at the 1st lock member from above. It is sectional drawing which shows the state before mounting a module unit. FIG. 23 is a view corresponding to FIG. 23 in a state where the module unit is placed on the upper part of the base unit. FIG. 23 is a view corresponding to FIG. 23 in a state where the module unit is moved backward. FIG. 23 is a view corresponding to FIG. 23 when the connector is connected and the first lock member is in the locked state. FIG. 23 is a view corresponding to FIG. 23 when the second lock member is in the locked state. It is a figure corresponding to FIG. 23 when the lock by the 1st lock member and the 2nd lock member is released.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is essentially merely an example and is not intended to limit the present invention, its application or its use.

FIG. 1 shows an artificial heart-lung machine pump driving device 1 according to an embodiment of the present invention. Although not shown, the heart-lung machine pump drive device 1 is used in a heart-lung machine system to drive a heart-lung machine pump that circulates blood in an artificial heart-lung machine circuit including an artificial lung. The heart-lung machine pump has a heart-lung machine pump motor 100 as shown in FIG.

As shown in FIGS. 2 to 4, the heart-lung machine pump drive device 1 includes a portable module unit Y1 that can be carried and a base unit Y2 to which the portable module unit Y1 is detachably coupled to the upper portion. There is. The module unit Y1 is compact and lightweight so that it can be used in an ambulance or the like. The base unit Y2 can be placed in an operating room or the like to mainly expand the functions of the module unit Y1, and is larger and heavier than the module unit Y1.

In the description of this embodiment, the side facing the operator in the state of using the heart-lung machine pump drive device 1 is referred to as "front", the opposite side (back side) is referred to as "rear", and the operator is also referred to as "rear". The left side when viewed from the viewpoint is referred to as "left", and the right side when viewed from the operator is referred to as "right", but this is for convenience of explanation only and does not limit the present invention.

(Configuration of module unit Y1)
First, the module unit Y1 will be described. As shown in FIGS. 5 to 8, the housing 10 of the module unit Y1 is formed in a substantially rectangular parallelepiped shape long in the front-rear direction. Further, a panel mounting portion 10a to which the display panel 11 (shown in FIG. 2) is mounted is provided on the front side of the upper portion of the housing 10. The panel mounting portion 10a is formed in the shape of a thick plate, and is inclined so as to be located rearward toward the upper side. The display panel 11 is mounted in an inclined state on the front surface of the panel mounting portion 10a. The display panel 11 can be composed of, for example, a liquid crystal panel or the like, and can display the blood flow rate flowing through the artificial heart-lung machine circuit, the operating state of the module unit Y1, and the like. A screen other than the above can be displayed on the display panel 11, and for example, a screen for making various settings can also be displayed.

A grip portion 12 that can be held when carrying the module unit Y1 is provided above the housing 10. The grip portion 12 is made of, for example, a pipe material, extends upward from the rear end portion of the upper surface of the housing 10, and then extends forward, and the front end portion is connected to the upper end of the panel mounting portion 10a. The center line of the portion extending in the front-rear direction of the grip portion 12 is arranged so as to pass through the center line in the left-right direction of the module unit Y1 in a plan view. The unit body of the module unit Y1 is composed of a housing 10, a display panel 11, a grip portion 12, and the like.

An operation unit 13 is provided on the front surface of the housing 10. The operation unit 13 is composed of, for example, an adjustment dial for adjusting the flow rate of the heart-lung machine pump, an ON / OFF changeover switch for the power supply, and the like.

As shown in FIG. 9, a control unit 20 for controlling the heart-lung machine pump, a module-side battery 21, and a motor driver 22 are housed inside the housing 10. Further, a flow sensor connection connector 23 and a base connection connector 24 are provided on the rear surface (rear surface) of the housing 10.

The control unit 20 is composed of, for example, a central processing unit, a computer device including a RAM, a ROM, and the like. A display panel 11, an operation unit 12, a module-side battery 21, a motor driver 22, a flow sensor connection connector 23, and a base connection connector 24 are connected to the control unit 20, and the display panel 11 and the operation unit 13 are connected according to the operation contents of the operation unit 13. It is configured to control the motor driver 22.

The module-side battery 21 is for supplying electric power to the control unit 20, the artificial heart-lung machine pump motor 100, and the like, and can be composed of a well-known rechargeable battery. Power is supplied to the module-side battery 21 from the base unit Y2 via the base connector 24 to charge the battery 21. The capacity of the module-side battery 21 may be such that the artificial heart-lung machine pump motor 100 can be driven for, for example, about one hour.

The motor driver 22 is configured to receive a signal output from the control unit 20 so that it can actually supply electric power to the heart-lung machine pump motor 100. The control unit 20 can switch ON / OFF of the heart-lung machine pump motor 100 and adjust the rotation speed (adjust the blood flow rate) via the motor driver 22.

A flow rate sensor 101 for detecting the blood flow rate is connected to the flow rate sensor connector 23. The flow rate sensor 101 is provided in the heart-lung machine circuit, and is a well-known sensor capable of measuring the flow rate of blood flowing through the heart-lung machine circuit and detecting whether or not air bubbles are mixed in the tube of the heart-lung machine circuit. Is.

A module connection connector 45 (described later) of the base unit Y2 is electrically connected to the base connection connector 24. Various signals and electric power are sent from the base unit Y2 side to the module unit Y1 via the base connector 24. Further, the detection signal of the flow rate sensor 101 is also sent to the base unit Y2.

As shown in FIG. 7, the base connection connector 24 is provided at the lower part on the rear side of the housing 10. The base connection connector 24 is housed in the housing 10, but the surface (rear surface) to which the module connection connector 45 of the base connection connector 24 is connected faces rearward and is outward from the housing 10. Facing. The connection direction of the module connection connector 45 in the base connection connector 24 is the rear side, that is, from the back to the front.

As shown in FIGS. 6 and 7, module side frames 26 extending in the front-rear direction are provided on both the left and right sides of the bottom of the housing 10 of the module unit Y1. The module side frame 26 is made of a high-strength member made of, for example, a metal material. The front side engaging protrusion 27 and the rear side engaging protrusion 28 are provided on the front side and the rear side of each module side frame 26 so as to protrude downward, respectively. The front engaging protrusion 27 and the rear engaging protrusion 28 are provided at intervals in the front-rear direction, and the front engaging protrusion 27 is located on the front side of the module unit Y1 in the front-rear direction. The rear engaging protrusion 28 is located on the rear side of the central portion of the module unit Y1 in the front-rear direction. Further, as shown in FIG. 4, when the module unit Y1 is viewed from the front side, the front side engaging protrusion 27 and the rear side engaging protrusion 28 are in a positional relationship overlapping each other. The front engaging protrusion 27 and the rear engaging protrusion 28 can have the same shape.

As shown in FIG. 7, the right front engaging protrusion 27 has a front protruding portion 27a protruding downward from the lower surface of the module side frame 26 and a lower end portion of the front protruding portion 27a toward the left side of the module unit Y1. It is composed of a front horizontal plate portion 27b extending substantially horizontally. Further, the left front engaging protrusion 27 extends substantially horizontally from the front protruding portion 27a protruding downward from the lower surface of the module side frame 26 and the lower end portion of the front protruding portion 27a toward the right side of the module unit Y1. It is composed of a front horizontal plate portion 27b. The tip of the front horizontal plate 27b on the right side and the tip of the front horizontal plate 27b on the left side are positioned so as to face each other with a predetermined distance in the left-right direction.

Further, the right rear engaging protrusion 28 is substantially horizontal from the rear protruding portion 28a protruding downward from the lower surface of the module side frame 26 and the lower end portion of the rear protruding portion 28a toward the left side of the module unit Y1. It is composed of a rear horizontal plate portion 28b extending to. Further, the left rear engaging protrusion 28 is substantially horizontal from the rear protruding portion 28a protruding downward from the lower surface of the module side frame 26 and the lower end portion of the rear protruding portion 28a toward the right side of the module unit Y1. It is composed of a rear horizontal plate portion 28b extending to. The tip of the right rear horizontal plate 28b and the tip of the left rear horizontal plate 28b are positioned so as to face each other with a predetermined distance in the left-right direction.

(Structure of base unit Y2)
Next, the base unit Y2 will be described. As shown in FIGS. 1 to 4, the housing 30 of the base unit Y2 is a box type larger than the housing 10 of the module unit Y1, and the housing of the module unit Y1 is placed on the upper part of the housing 30 of the base unit Y2. The body 10 is placed on it. The width dimension and the front-rear dimension of the housing 30 of the base unit Y2 are set longer than the width dimension and the front-rear dimension of the housing 10 of the module unit Y1, respectively, and the projection surface of the housing 10 of the module unit Y1 in a plan view. Is narrower than the projection plane of the housing 30 of the base unit Y2.

As shown in FIG. 1, the housing 30 of the base unit Y2 includes a left side panel 31 and a right side panel 32. The distance between the left side panel 31 and the right side panel 32 is set wider than the width of the housing 10 of the module unit Y1 so that the housing 10 of the module unit Y1 can be inserted between the side panels 31 and 32. It has become. The upper surface of the housing 30 of the base unit Y2 extends substantially horizontally. Further, on the front surface of the housing 30 of the base unit Y2, an operation lever 34 for operating the lock member described later is arranged.

As shown in FIG. 10, the control unit 40 and the base side battery 43 are housed inside the housing 30 of the base unit Y2. Further, a first sensor connection connector 41, a second sensor connection connector 42, and a clamp connection connector 44 are provided on the rear surface of the housing 30.

The control unit 40 is composed of a computer device similar to the control unit 20 of the module unit Y1. A first sensor connection connector 41, a second sensor connection connector 42, a clamp connection connector 44, a module connection connector 45, and a base side battery 43 are connected to the control unit 40.

A pressure sensor 102 and a temperature sensor 103 are connected to the first sensor connector 41. The pressure sensor 102 is provided in the heart-lung machine circuit, and is a well-known one capable of measuring the pressure of blood flowing through the heart-lung machine circuit. The temperature sensor 103 is provided in the artificial heart-lung machine circuit, and is a well-known one capable of measuring the temperature of blood flowing through the artificial heart-lung machine circuit.

A level sensor 104 is connected to the second sensor connector 42. The level sensor 104 is provided in the heart-lung machine circuit, and is a well-known one capable of detecting the blood volume in the blood storage tank of the heart-lung machine circuit.

An auto clamp 106 is connected to the clamp connection connector 44. The auto clamp 106 is for automatically clamping the tube to stop the blood flow when air bubbles are mixed in the tube of the heart-lung machine circuit, and is a well-known one having a built-in solenoid mechanism or the like. .. The auto clamp 106 is controlled by the control unit 40. The auto clamp 106 is normally in an open state.

The detection signal of the flow rate sensor 101 connected to the module unit Y1 is input to the control unit 40 via the base connector 24 and the module connector 45. When the flow rate sensor 101 detects that air bubbles are mixed in the tube of the heart-lung machine circuit, the signal is sent to the control unit 40 of the base unit Y2, and the control unit 40 clamps the auto clamp 106. ..

Further, the control unit 40 transmits the detection signals of the pressure sensor 102, the temperature sensor 103, and the level sensor 104 to the control unit 20 of the module unit Y1 via the base connection connector 24 and the module connection connector 45. The control unit 20 of the module unit Y1 controls the heart-lung machine pump motor 100 based on the detection signal and the operating state of the operation unit 13 according to a well-known method.

The base-side battery 43 is a rechargeable battery having a larger capacity than the module-side battery 21, and functions as a backup power source so that the artificial heart-lung machine pump motor 100 can continue to be driven even in the event of a power failure. The capacity of the base-side battery 43 is such that the artificial heart-lung machine pump motor 100 can be driven for, for example, about 3 to 4 hours. An AC power supply 105 is connected to the base side battery 43 so that it can be charged.

As shown in FIG. 4, the module connector 45 is provided on the upper rear side of the housing 30 so as to project upward from the upper surface of the housing 30 (the upper surface of the slide member described later). The surface of the module connector 45 to which the base connector 24 is connected faces forward and is located outside the housing 30. The connection direction of the base connection connector 24 in the module connection connector 45 is the front side, that is, from the front to the back. The module connector 45 and the base connector 24 are connected in a state where the module unit Y1 is coupled to the base unit Y2.

As shown in FIG. 8, the attachment / detachment mechanism A of the module unit Y1 is provided on the upper part of the base unit Y2. As shown in FIGS. 12 and 13, the attachment / detachment mechanism A includes a base frame 50, a slide member 60, a first lock member 71 (shown in FIG. 13), and a second lock member 72 (shown in FIG. 13). ing. Note that FIGS. 12 and 13 show a state in which only the attachment / detachment mechanism A is taken out from the housing 30.

As shown in FIGS. 16 and 17, the base frame 50 is made of a metal member formed in a substantially plate shape extending horizontally, and is fixed to the upper part of the housing 40 of the base unit Y2. It is a member that constitutes a part of the unit Y2. A frame portion 51 projecting upward is formed at the rear portion of the base frame 50. As shown in FIG. 12, the module connection connector 45 is fixed to the frame portion 51 so as to project forward.

The base frame 50 has a lower plate portion 52 that is long in the front-rear direction, a ridge portion 53 that protrudes upward from the center portion in the width direction of the upper surface of the lower plate portion 52 and extends in the front-rear direction, and a ridge portion 53 on the front side of the upper surface of the ridge portion 53. It has a front upper plate portion 54 provided and a rear upper plate portion 55 provided on the rear side of the upper surface of the ridge portion 53. That is, by forming the cutout portion 56 in which the intermediate portion in the front-rear direction is cut out in the plate-shaped portion extending from the upper surface of the ridge portion 53 to the left side and the right side, the portion on the front side of the cutout portion 56 is the front upper plate. The portion 54 is formed, and the portion on the rear side of the notch portion 56 is the rear side upper plate portion 55. Therefore, the front edge portion 56a of the notch portion 56 is composed of the trailing edge portion of the front side upper plate portion 54, and the trailing edge portion 56b of the notch portion 56 is composed of the front edge portion of the rear side upper plate portion 55. Will be. Further, the front side upper plate portion 54 and the rear side upper plate portion 55 are arranged at intervals in the front-rear direction by the width of the notch portion 56.

The front upper plate portion 54 extends to both the left and right sides of the ridge portion 53 from the left and right side surfaces. The left-right dimension of the front upper plate portion 54 is set shorter than the left-right dimension of the lower plate portion 52. The front edge portion of the front upper plate portion 54 is located behind the front edge portion of the lower plate portion 52. Further, the rear upper plate portion 55 extends to both the left and right sides of the ridge portion 53 from the left and right side surfaces. The left-right dimensions of the rear upper plate portion 55 are set to be substantially the same as the left-right dimensions of the front upper plate portion 54.

Further, as shown in FIG. 17, a through hole 52a is formed on the front side of the lower plate portion 52. The width of the through hole 52a is set wider than the width of the ridge portion 53, and the through hole 52a opens to a region directly below the front upper plate portion 54.

As shown in FIGS. 14 and 15, the slide member 60 is composed of a metal member formed so as to form a U-shape that is open to the rear side. Specifically, the slide member 60 includes a left plate portion 61 extending substantially horizontally in the front-rear direction on the left side, a right plate portion 62 extending substantially horizontally in the front-rear direction on the right side, and a left plate portion 61 and a right plate portion 62. It has a front plate portion 63 extending in the left-right direction so as to connect the front end portions.

As shown in FIGS. 12 and 13, the slide member 60 is assembled to the base frame 50. The left plate portion 61 of the slide member 60 assembled to the base frame 50 is arranged between the lower plate portion 52 and the front and rear upper plate portions 54 and 55 on the left side of the ridge portion 53 of the base frame 50. To. The right plate portion 62 of the slide member 60 is arranged between the lower plate portion 52 and the front and rear upper plate portions 54 and 55 on the right side of the ridge portion 53 of the base frame 50. Further, the front plate portion 63 is arranged in front of the front end portion of the ridge portion 53. In this state, the slide member 60 can slide while being guided substantially horizontally in the front-rear direction along the upper surface of the lower plate portion 52 of the base frame 50. The slide member 60 is urged forward by an urging member (not shown).

As shown in FIG. 14, a left front side recess 61a is formed in the front portion of the upper surface of the left plate portion 61 of the slide member 60, and a left rear side recess 61b is formed in the rear portion. The front horizontal plate portion 27b and the rear horizontal plate portion 28b (shown in FIG. 7 and the like) provided on the left side of the module unit Y1 are inserted into the left front side recess 61a and the left rear side recess 61b, respectively. ing.

As shown in FIG. 12, when the slide member 60 slides toward the rear side and slides to the rear end position within the slideable range in the front-rear direction, the left front side recess 61a and the left rear side recess 61b are each one. The portions are arranged so as to be covered from above by the front and rear upper plate portions 54 and 55. As a result, the front horizontal plate portion 27b and the rear horizontal plate portion 28b of the module unit Y1 are inserted into the left front recess 61a and the left rear recess 61b, and are downward with respect to the front and rear upper plate portions 54 and 55. Will be engaged from.

Further, as shown in FIG. 14, a right front side recess 62a is formed in the front portion of the upper surface of the right plate portion 62 of the slide member 60, and a right rear side recess 62b is formed in the rear portion. The front horizontal plate portion 27b and the rear horizontal plate portion 28b (shown in FIG. 7) provided on the right side of the module unit Y1 are inserted into the right front side recess 62a and the right rear side recess 62b, respectively. There is.

Similar to the left plate portion 61 of the slide member 60, when the slide member 60 slides toward the rear side and slides to the rear end position within the slideable range in the front-rear direction (shown in FIG. 12), the right front side recess 62a The right rear side recess 62b is arranged so that a part thereof is covered from above by the front side and rear side upper plate portions 54 and 55, respectively. As a result, the front horizontal plate portion 27b and the rear horizontal plate portion 28b on the right side of the module unit Y1 are inserted into the front recess 62a and the rear recess 62b, and are downward with respect to the front and rear upper plate portions 54 and 55. Will be engaged from.

That is, the base unit side engaging portions of the present invention are the front side and rear side upper plate portions 54 and 55. Then, in the engaged state in which the front and rear upper plate portions 54 and 55 and the front horizontal plate portion 27b and the rear horizontal plate portion 28b are engaged with each other, the front and rear upper plate portions 54 and 55 are horizontal plates. Since it is arranged above the portions 27b and 28b, the horizontal plate portions 27b and 28b do not separate upward.

When the slide member 60 slides toward the front side and slides to the front end position within the slideable range in the front-rear direction (shown in FIG. 23), the left rear side recess 61b and the right rear side recess 62b become the base frame in a plan view. It is located at a position corresponding to the notch 56 between the front side upper plate portion 54 and the rear side upper plate portion 55 of the 50, and the left front side recess 61a and the right front side recess 62a are the front side upper plate portion of the base frame 50. It is located in front of 54. As a result, the entire left front side recess 61a, right front side recess 62a, left rear side recess 61b, and right rear side recess 62b are opened, and the horizontal plate portions 27b, 27b, 28b, 28b of the module unit Y1 are separated from the left front side recess 61a. , The right front side recess 62a, the left rear side recess 61b, and the right rear side recess 62b can be easily taken in and out.

Further, as shown in FIG. 15, a first lower recess 61c and a second lower recess 61d are formed on the front side portion of the lower surface of the left plate portion 61 of the slide member 60. The first lower recess 61c is located on the front side of the second lower recess 61d. Further, a first lower recess 62c and a second lower recess 62d are similarly formed on the lower surface of the right plate portion 62 of the slide member 60. The first lower recesses 61c and 62c and the second lower recesses 61d and 62d can face downward from the through hole 52a (shown in FIG. 17) of the base frame 50.

As shown in FIG. 13, a bar member 77 is attached to the lower surface of the slide member 60 on the rear side of the second lower recesses 61d and 62d. The bar member 77 extends in the left-right direction so as to connect the left plate portion 61 and the right plate portion 62 of the slide member 60. The bar member 77 projects downward from the lower surface of the slide member 60, and as shown in FIG. 23, protrudes downward from the lower surface of the base frame 50 through the through hole 52a of the base frame 50.

As shown in FIG. 13, the first lock member 71 is formed in a long block shape in the left-right direction. As shown in FIG. 22, holes 71a penetrating in the vertical direction are formed on both the left and right sides of the first lock member 71, respectively. As shown in FIG. 13, guide bolts B extending in the vertical direction are inserted into the holes 71a. The upper end portion of the guide bolt B is fitted through the through hole 52a of the base frame 50 and fastened to the lower portion of the ridge portion 53. The first lock member 71 is guided in the vertical direction by the guide bolt B. As a result, the first lock member 71 can move up and down. Further, although not shown, the guide bolt B is provided with an urging member that urges the first lock member 71 upward.

As shown in FIG. 22, a notch 71b is formed in the central portion in the left-right direction of the first lock member 71. The bottom surface of the notch 71b is inclined downward toward the rear side.

Left and right lock portions 71c and 71c are provided on both left and right sides of the upper portion of the first lock member 71. The left lock portion 71c selectively enters and engages with one of the first lower recess 61c and the second lower recess 61d of the left plate portion 61 of the slide member 60, and the right lock portion 71c is a slide member. It selectively enters and engages with one of the first lower recess 62c and the second lower recess 62d of the right plate portion 62 of 60.

As shown in FIG. 13, the second lock member 72 engages with the bar member 77 and is composed of a lever-shaped member formed so as to be tapered. The second lock member 72 is arranged behind the first lock member 71 in a state of being supported by the support shaft 78. The support shaft 78 extends in the left-right direction, and both ends thereof are rotatably supported by brackets 79 fixed to the lower surface of the base frame 50. The support shaft 78 penetrates the base end portion of the second lock member 72 in the left-right direction. The base end portion of the second lock member 72 is fixed to the outer peripheral surface of the support shaft 78 and is rotationally integrated with the support shaft 78. Therefore, the second lock member 72 rotates in the vertical direction around the center line of the support shaft 78. As shown in FIG. 27, the second lock member 72 comes into contact with the bar 77 from the front side of the bar 77 when it is in the locked position. Further, as shown in FIG. 28, the second lock member 72 is rotated around the center line of the support shaft 78 so as to be in contact with the bottom surface of the notch 71b of the first lock member 71, and the first lock member 72 is in contact with the bottom surface of the notch portion 71b. The member 71 can be pressed downward.

As shown in FIG. 13, a driven gear 80 is fixed to the right end of the support shaft 78. Below the driven gear 80, a drive gear 81 is provided so as to mesh with the driven gear 80. The drive gear 81 has a larger number of teeth than the driven gear 80, and is rotatably supported by the gear support plate 82 (also shown in FIG. 23) via the support shaft 84. The gear support plate 82 is fixed to the lower surface of the base frame 50 and extends downward. The support shaft 84 extends in the left-right direction and is attached to an intermediate portion in the vertical direction of the gear support plate 82.

The drive gear 81 is driven by the operating lever 34. In this embodiment, the first link 89 and the second link 90 are provided as a structure for driving the drive gear 81 by the operating lever 34.

As shown in FIG. 1 and the like, one end of the operating lever 34 projects outward from the front surface of the housing 30 of the base unit Y2, and is a portion for the user to operate. As shown in FIGS. 13 and 23, the other end of the operating lever 34 is rotatably supported around the center line extending in the left-right direction below the support shaft 84 with respect to the gear support plate 82. One end of the first link 89 is fixed to the support shaft 84, and the first link 89 and the drive gear 81 are rotationally integrated. One end of the second link 90 is rotatably supported around a center line extending in the left-right direction with respect to the intermediate portion of the operating lever 34. Further, the other end of the first link 89 and the other end of the second link 90 are rotatably connected to each other. Therefore, when one end of the operating lever 34 is moved in the vertical direction, the second link 90 moves in the vertical direction to rotate the first link 89 in the vertical direction, whereby the support shaft 84 is rotated and driven. The gear 81 rotates. When the drive gear 81 rotates, the driven gear 80 rotates and the second lock member 72 moves up and down. As shown in FIG. 23, the operating lever 34 is urged by an urging member (not shown) so that one end thereof is positioned upward in a state where no external force acts.

The operation lever 34, the support shaft 78, the bracket 79, the driven gear 80, the drive gear 81, the gear support plate 82, the support shaft 84, the first link 89, and the second link 90 are members constituting the attachment / detachment mechanism A.

(Structure of stopper member)
The base unit Y2 is provided with a stopper member 95 for preventing the slide operation of the slide member 60. As shown in FIG. 14, a stopper member disposing hole 64 for disposing the stopper member 95 is provided on the upper surface of the right plate portion 62 on the rear side of the right plate portion 62 of the slide member 60 in the front-rear direction. It is formed to open. The stopper member 95 can be provided in the stopper member arrangement hole 64 in a state of being accommodated therein, whereby the stopper member 95 is provided in the slide member 60.

The stopper member arrangement hole 64 can be formed so as to penetrate the right plate portion 62 in the vertical direction. The stopper member arrangement hole 64 has a shape that is long in the front-rear direction. The right rear side recess 62b is arranged adjacent to the right side of the stopper member arrangement hole 64, and the right side portion of the stopper member arrangement hole 64 is continuous with the left side portion of the right rear side recess 62b.

The stopper member 95 is made of a high-strength metal member, and is a slide blocking position (shown in FIG. 18) that prevents the slide member 60 that slides toward the front side of the base unit Y2 from sliding toward the rear side. ) And a slide allowable position (shown in FIG. 19) that allows the slide member 60 that slides toward the front side of the base unit Y2 to slide toward the rear side. ..

Specifically, the slide member 60 is formed into a shape as shown in FIGS. 20 and 21, and has a main body portion 95a that is long in the front-rear direction and a main body portion 95a that protrudes from the right side surface to the right side in the front-rear direction. It is provided with a right-side protruding portion 95b extending to, and the main body portion 95a and the right-side protruding portion 95b are integrally molded. The main body portion 95a is guided so as to be movable in the vertical direction by the inner surface of the stopper member arrangement hole 64. Step portions 95c and 95c are formed on the front portion and the rear portion on the upper side of the main body portion 95a, respectively. The dimension in the front-rear direction between the step portions 95c and 95c on the upper side of the main body portion 95a is set to be substantially equal to or slightly shorter than the width (width in the front-rear direction) of the notch portion 56 formed in the base frame 50. , The portion between the step portions 95c and 95c on the upper side of the main body portion 95a can be inserted into the notch portion 56.

As shown in FIGS. 18 and 19, the base unit Y2 is provided with urging members 96, 96 that constantly urge the stopper member 95 toward the slide blocking position. The urging member 96 can be made of, for example, a coil spring, but is not limited to this, and may be an elastic material such as rubber. Further, the number of the urging members 96 may not be two, but may be one, or may be three or more.

As shown in FIG. 21, the main body 95a is formed with accommodating holes 95d and 95d for accommodating the urging member 96 so as to open on the lower surface of the main body 95a and extend to the vicinity of the upper portion of the main body 95a. Has been done. The urging member 96 is accommodated in the accommodating hole 95d so that the expansion and contraction direction is in the vertical direction, and the lower portion of the urging member 96 projects downward from the lower end of the accommodating hole 95d. The length of is set. The lower portion of the urging member 96 comes into contact with the upper surface of the lower plate portion 52 of the base frame 50, and the lower portion of the urging member 96 contacts the upper surface of the lower plate portion 52, whereby the urging member 96 Always urges the stopper member 95 upward.

As shown in FIG. 18, when the slide member 60 slides toward the front side until the portion between the step portions 95c and 95c on the upper side of the main body portion 95a of the stopper member 95 corresponds to the notch portion 56, the slide member 60 is the front end position. Since the stopper member 95 is urged upward by the urging member 96, when the slide member 60 reaches the front end position, the stopper member 95 is displaced upward, whereby the step portions 95c and 95c on the upper side of the main body portion 95a The intervening portion enters the notch 56 and is arranged in the notch 56. That is, the stopper member 95 at the slide blocking position is arranged in the notch 56. Further, when the stopper member 95 is in the slide blocking position, the trailing edge portion of the front upper plate portion 54 is fitted into the front step portion 95c, and the front edge portion of the rear upper plate portion 55 is fitted into the rear step portion 95c. It will be a mess. As a result, it is possible to prevent the stopper member 95 from coming off upward. The front side and the rear side of the stopper member 95 at the slide blocking position engage with the front edge portion 56a and the trailing edge portion 56b of the notch 56 in the front-rear direction, respectively. That is, the front side of the stopper member 95 abuts and engages with the front edge portion 56a of the notch 56 from the rear, and the rear side of the stopper member 95 abuts and engages with the trailing edge 56b of the notch 56 from the front. It becomes possible to engage. Therefore, the slide member 60 does not slide in the front-rear direction with respect to the base frame 50.

Since the stopper member arrangement hole 64 of the slide member 60 and the right rear side recess 62b are formed to be continuous, the stopper member 95 at the slide blocking position is arranged so as to face the right rear side recess 62b. Will be. The right protruding portion 95b of the stopper member 95 at the slide blocking position is located above the bottom surface of the right rear recess 62b. Therefore, when the horizontal plate portion 28b of the rear engagement protrusion 28 on the right side of the module unit Y1 is inserted into the right rear recess 62b of the slide member 60, the rear engagement protrusion 28 is a stopper at the slide blocking position. The member 95 is pressed downward. Since this pressing force is due to the own weight of the module unit Y1, it becomes larger than the urging force of the urging member 96. Therefore, the stopper member 95 moves downward against the urging force of the urging member 96, and is switched to the slide allowable position shown in FIG. At the slide allowable position, the portion between the step portions 95c and 95c on the upper side of the main body portion 95a of the stopper member 95 is located below the notch portion 56, so that the stopper member 95 does not engage with the base frame 50. Therefore, the slide member 60 can slide with respect to the base frame 50.

(When using the heart-lung machine pump drive device 1)
Next, a case where the artificial heart-lung machine pump drive device 1 configured as described above is used will be described. For example, in an ambulance or the like, the module unit Y1 is brought into the vehicle while the base unit Y2 is placed in the operating room or the like. At this time, since the functions of the module unit Y1 are narrowed down so that the pressure sensor 102 and the like are not connected to the module unit Y1, the module unit Y1 is small and lightweight. Therefore, it is easy to carry and easy to use even in a narrow car.

An artificial heart-lung machine pump motor 100 and a flow rate sensor 101 are connected to the module unit Y1. Since the module-side battery 21 is built in the module unit Y1, the artificial heart-lung machine pump motor 100 can be controlled by the control unit 20 and driven at a predetermined rotation speed, so that the artificial heart-lung machine system can function.

On the other hand, when the artificial heart-lung machine pump drive device 1 is used in an operating room or the like, the module unit Y1 is coupled to the base unit Y2. Since the pressure sensor 102, the auto clamp 106, and the like are connected to the base unit Y2, it is possible to provide functions that cannot be realized only by the module unit Y1 and further enhance the safety during treatment. ..

When connecting the module unit Y1 to the base unit Y2, first, as shown in FIG. 23, the module unit Y1 is moved from the upper side to the lower side of the base unit Y2. At this time, the module unit Y1 is moved so that the base connection connector 24 of the module unit Y1 is located in front of the module connection connector 45 of the base unit Y2.

Before the module unit Y1 is connected, the slide member 60 of the base unit Y2 is urged forward and is therefore at the front end position. At this time, the left and right lock portions 71c of the first lock member 71 enter and engage with the second lower recess 61d and the second lower recess 62d of the slide member 60. Further, as shown in FIG. 18, since the stopper member 95 is in the slide blocking position, the stopper member 95 prevents the slide member 60 from sliding in the front-rear direction.

Since the slide member 60 is located at the front end position, the rear recesses 61b and 62b of the slide member 60 are located between the front upper plate 54 and the rear upper plate 55 of the base frame 50, and the front recess 61a , 62a are located in front of the front upper plate portion 54 of the base frame 50. As a result, the front recesses 61a and 62a and the rear recesses 61b and 62b are all open. In this state, as shown in FIG. 18, the stopper member 95 is arranged so as to face the inside of the right rear recess 62b.

When the module unit Y1 is placed on the upper surface of the base unit Y2 (shown in FIG. 24), the four horizontal plate portions 27b and 28b of the module unit Y1 have the front recesses 61a and 62a and the rear recesses 61b and 62b of the slide member 60. Will be inserted into. In this state, the heights of the base connection connector 24 of the module unit Y1 and the module connection connector 45 of the base unit Y2 are the same, and the relative positional relationship in the left-right direction is also the same.

Further, when the module unit Y1 is placed on the upper surface of the base unit Y2, the horizontal plate portion 28b of the rear engagement protrusion 28 on the right side of the module unit Y1 is inserted into the right rear recess 62b of the slide member 60. Therefore, the stopper member 95 at the slide blocking position is pressed downward by the rear engaging protrusion 28. As a result, the stopper member 95 is switched to the slide allowable position.

After that, when the module unit Y1 is pushed backward while the base unit Y2 is fixed, the horizontal plate portions 27b and 28b of the module unit Y1 are inserted into the front recesses 61a and 62a and the rear recesses 61b and 62b of the slide member 60. Therefore, the rearward force of the module unit Y1 is transmitted to the slide member 60 via the horizontal plate portions 27b and 28b, and the slide member 60 moves rearward relative to the base frame 50 (shown in FIG. 25). .. At this time, since the slide member 60 is guided by the base frame 50, the module unit Y1 can be smoothly and easily moved backward.

When the slide member 60 moves rearward, the first is due to the inclined shape of the upper surface of the left and right lock portions 71c of the first lock member 71 and the inclined shape of the inner surface of the second lower concave portion 61d and the second lower concave portion 62d. The lock member 71 is pushed downward by the lower surface of the slide member 60 and is displaced downward while coming out of the second lower recess 61d and the second lower recess 62d. Therefore, the first lock member 71 does not hinder the backward movement of the slide member 60.

When the module unit Y1 is moved backward, the base connection connector 24 of the module unit Y1 is inserted into the module connection connector 45 of the base unit Y2 and is in a connected state as shown in FIG. 26. At the same time, the slide member 60 is at the rear end position, and the left and right lock portions 71c and 71c of the first lock member 71 enter and engage with the first lower recess 61c and the first lower recess 62c of the slide member 60. To do. As a result, the slide member 60 is locked so as not to move forward.

At this time, since the front and rear upper plate portions 54 and 55 of the base frame 50 of the base unit Y2 are located above the four horizontal plate portions 27b and 28b of the module unit Y1, the horizontal plate portions 27b and 28b are located on the front side and the horizontal plate portions 27b and 28b. It engages with the rear upper plate portions 54 and 55 from below. As a result, the module unit Y1 is coupled to the base unit Y2.

Then, when the operating lever 34 is pushed down as shown in FIG. 27, the driven gear 80 is driven by the drive gear 81 to rotate the second lock member 72. The operation amount of the operation lever 34 is set so that the second lock member 72 rotates until the tip of the second lock member 72 is positioned later. As a result, the tip of the second lock member 72 comes into contact with the front surface of the bar member 77 from the front side, so that the slide member 60 is also locked by the second lock member 72 so as not to move forward.

When the module unit Y1 is removed from the base unit Y2, the operating lever 34 is pushed upward as shown in FIG. 28. Then, the second lock member 72 rotates so that its tip is positioned forward and is released from the rod member 77, and the lock by the second lock member 72 is released. Then, the second lock member 72 enters the inside of the notch 71b of the first lock member 71. The second lock member 72 presses the bottom surface of the notch portion 71b downward while being inside the notch portion 71b of the first lock member 71. As a result, the first lock member 71 is displaced downward, and the left and right lock portions 71c and 71c of the first lock member 71 are removed from the first lower recess 61c and the first lower recess 62c of the slide member 60. Since the lock by the lock member 71 is released, the module unit Y1 can be moved forward. In this embodiment, the first lock member 71 and the second lock member 72 can be interlocked and unlocked by operating the operation lever 34, so that the unlock operation can be easily performed.

When the module unit Y1 is moved forward, the base connection connector 24 of the module unit Y1 is disconnected from the module connection connector 45 of the base unit Y2. Further, since the slide member 60 is at the front end position, the horizontal plate portion 27b of the module unit Y1 can be pulled out from the front recesses 61a and 62a and the rear recesses 61b and 62b of the slide member 60. As a result, the module unit Y1 is detached from the base unit Y2.

(When the module unit Y1 and the base unit Y2 are connected incorrectly)
Next, a case where the module unit Y1 and the base unit Y2 are incorrectly connected will be described.

As shown in FIG. 23, when the slide member 60 is in the front end position, the stopper member 95 is arranged in the slide blocking position as shown in FIG. Then, for example, when an operator tries to hold the module unit Y1 and connect it to the base unit Y2, if the module unit Y1 is lowered in a state where the module unit Y1 is in front of the normal position, the module unit Y1 is lowered. It is conceivable that the rear horizontal plate portion 28b of the rear engaging protrusion 28 is inserted into the front recesses 61a, 62a instead of the rear recesses 61b, 62b of the slide member 60.

In this case, the stopper member 95 is not pressed by the rear horizontal plate portion 28b of the rear engaging protrusion 28 of the module unit Y1, so that the stopper member 95 remains in the slide blocking position. Therefore, since the slide member 60 cannot be slid by the stopper member 95, even if the operator pushes the module unit Y1 toward the rear side, it cannot be moved. As a result, the operator notices that the joining operation is wrong, so that the user does not use it incorrectly.

As described above, according to the artificial heart-lung machine pump drive device 1 according to this embodiment, the module unit Y1 is removed from the base unit Y2 to become a small module unit Y1. This makes it possible to easily bring the module unit Y1 into, for example, an ambulance or the like to drive an artificial heart-lung machine pump of an artificial heart-lung machine in the vehicle.

On the other hand, when the heart-lung machine pump drive device 1 is used in an operating room, for example, the module unit Y1 is coupled to the base unit Y2. As a result, the sensors can be enhanced and fine control can be performed.

Therefore, it can be easily used in an ambulance or the like, and can also be used in a general operating room. Moreover, since the first and second lock members 71 and 72 can be locked with the front and rear upper plate portions 54 and 55 of the base unit Y2 engaged with the horizontal plate portion 27b of the module unit Y1, both units Y1 , Y2 does not separate in the bonded state, and high safety can be ensured.

Further, a stopper member 95 is provided to prevent the slide member 60 from sliding toward the rear side when the rear engaging protrusion 28 of the module unit Y1 is not inserted into the rear recessed portion 62b of the slide member 60. Therefore, it is possible to prevent a poor connection between the module unit Y1 and the base unit Y2.

The above embodiments are merely exemplary in all respects and should not be construed in a limited way. Furthermore, all modifications and modifications that fall within the equivalent scope of the claims are within the scope of the present invention.

As described above, the artificial heart-lung machine pump drive device according to the present invention can be used, for example, in an artificial heart-lung machine system.

1 Heart-lung machine pump drive device 24 Base connection connector 27 Front engagement protrusion 28 Rear engagement protrusion 45 Module connection connector 50 Base frame 54, 55 Front and rear upper plate (base unit side engagement)
56 Notch 56a Front edge 56b Trailing edge 60 Slide members 61a, 62a Front recesses 61b, 62b Rear recess 95 Stopper member 96 Biasing member Y1 Module unit Y2 Base unit

Claims (5)

An artificial heart-lung machine pump having a portable module unit and a base unit to which the portable module unit is detachably connected to drive an artificial heart-lung machine pump that circulates blood in an artificial heart-lung machine circuit including an artificial lung. In the drive unit
The base unit includes a unit main body and a slide member that slides in the front-rear direction with respect to the unit main body in a state where the portable module unit is mounted.
The slide member is formed with an open front recess and a rear recess on the upper surface of the slide member.
The slide member is arranged on the base unit so as to cover the front recess and the posterior recess from above in a state where the slide member slides toward the rear side of the base unit, and the slide member is placed on the front side of the base unit. A base unit side engaging portion arranged so as to open the front concave portion and the rear concave portion in a state of sliding toward the slide member, and a stopper member for preventing the sliding operation of the slide member are provided.
The portable module unit is formed so that a front engaging protrusion inserted into the front recess and a rear engaging protrusion inserted into the rear recess project downward, and the front engaging protrusion is formed. The combined protrusion and the rear engagement protrusion are formed so as to engage the base unit side engagement portion in a state where the slide member slides toward the rear side of the base unit.
The stopper member has a slide blocking position that prevents the slide member that slides toward the front side of the base unit from sliding toward the rear side, and the slide member that slides toward the front side of the base unit at the rear. It is attached to the above base unit so that it can be switched to a slide allowable position that allows it to slide toward the side.
An artificial heart-lung machine pump driving device, wherein the rear engaging protrusion presses the stopper member at the slide blocking position to switch the stopper member to a slide allowable position. In the artificial heart-lung machine pump driving device according to claim 1.
A module connector is provided on the rear side of the base unit so that the connection direction is from front to rear and projects upward from the upper surface of the slide member.
On the rear side of the portable module unit, a base connector to be connected to the module connector is provided so that the connection direction is from the back to the front.
An artificial heart-lung machine pump drive device characterized in that the module connection connector and the base connection connector are connected in a state where the portable module unit is coupled to the base unit. In the artificial heart-lung machine pump driving device according to claim 1 or 2.
The artificial heart-lung machine pump drive device, wherein the stopper member is arranged so as to face the rear side recess of the slide member. In the artificial heart-lung machine pump driving device according to any one of claims 1 to 3.
An artificial heart-lung machine pump drive device characterized in that the base unit is provided with an urging member that constantly urges the stopper member toward the slide blocking position. In the artificial heart-lung machine pump driving device according to any one of claims 1 to 4.
The stopper member is provided on the slide member, and the stopper member is provided on the slide member.
The base frame constituting the base unit is formed with a notch in which the stopper member at the slide blocking position is arranged.
An artificial heart-lung machine pump driving device, wherein the front side and the rear side of the stopper member at the slide blocking position abut on the front edge portion and the trailing edge portion of the notch portion, respectively.

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