JP2019063262A - Monitor support structure - Google Patents

Abstract

To provide a monitor support structure which can be easily attached and detached, and in which wobble hardly occurs.SOLUTION: There is provided a monitor support structure for supporting a monitor part to a monitor installation part through a monitor support part 5. The monitor installation part has: a columnar recess part having a bottom surface, and a top surface which is opened; and a pawl member provided so that, a part thereof protrudes into the columnar recess part. The monitor support part comprises: a columnar salient part 7 which is detachably and rotatably fitted to the columnar recess part; and a support part 6 to whose upper part, the monitor part is attached. The columnar salient part comprises: an axial notch 72 which is formed so that, when the columnar salient part is fitted to the columnar recess part, the columnar salient part is depressed to a side surface of the axial notch, so that the pawl member passes without interference; and an engagement part 73 for engaging to the pawl member and pressing so that, a lower face of the columnar salient part contacts a bottom face of the columnar recess part when the columnar salient part is rotated in a prescribed direction in the columnar recess part. The columnar salient part has on a lower face thereof, a pair of ball rollers 76 with a plunger function.SELECTED DRAWING: Figure 2D

Description

  The present invention relates to a monitor support structure suitable for use in a drive device or the like for driving a medical device such as an IABP drive device.

  As IABP drive device which drives a driven device in IABP (aortic balloon pumping), what is indicated in the following patent documents 1 is known. This drive device has a main body housing portion for storing pressure generating means for expanding and contracting the balloon of the balloon catheter to be connected, and a monitor portion supported by the monitor installation portion of the main body housing portion. ing. The monitor unit has a display unit capable of displaying various information related to the driving state of the balloon catheter and the like, and a control unit for controlling the pressure generating means and the display unit.

  In such an IABP drive device, from the viewpoint of transportation convenience and workability, the monitor unit is required to be easily attachable to and detachable from the main body housing unit without using a tool or the like. In addition, it is required that the monitor unit does not shake or rattle easily due to vibration caused by the traveling of the main body case or looseness due to rotation of the monitor unit, etc. Ru.

JP, 2015-188674, A

  The present invention has been made in view of such an actual situation, and an object of the present invention is to provide a monitor support structure in which the monitor unit can be easily attached to and detached from the main body casing, and the monitor unit does not easily shake or rattle.

In order to achieve the above object, the monitor support structure according to the present invention is
A monitor support structure for supporting a monitor unit via a monitor support unit on a monitor installation unit provided on an upper portion of a main body case,
The monitor installation unit
A substantially cylindrical columnar recess having a bottom surface and an open top surface;
And a claw member provided at an upper portion of the columnar recess and a part of which is provided so as to protrude inward from the inner surface of the columnar recess,
The monitor support unit
A supporting column on which the monitor unit is attached;
And a substantially cylindrical columnar convex portion integrally provided in a lower portion of the column portion and removably and rotatably fitted in the columnar concave portion,
The columnar convex portion is
A notch formed so as to be recessed in the side surface so that the part of the claw member passes without interference when the columnar recess is inserted;
When the columnar convex portion is rotated in a predetermined direction about its central axis in a state of being fitted into the columnar concave portion, the columnar convex portion is engaged with the bottom surface of the columnar concave portion. And an engaging portion for pressing toward the
The columnar convex portion is provided on the lower surface thereof, and has at least one ball roller with a plunger function that can be rotated while being biased so that the columnar convex portion is separated from the columnar concave portion.

  In the monitor support structure according to the present invention, the main body case houses a drive unit for driving a medical device to be connected, and the monitor unit is for a medical device for displaying information including a drive state of the medical device. It can be suitably used for a drive device.

  In the monitor support structure according to the present invention, since the lower surface of the columnar convex portion has the ball roller with a plunger function that can rotate while urging the columnar convex portion to be separated from the columnar concave portion, the columnar portion The columnar convex portion can be smoothly rotated in the concave portion, and therefore, the monitor can be easily attached to and detached from the main body casing. In addition to this, while the lower surface of the columnar convex portion is urged to be separated from the bottom surface of the columnar concave portion by the plunger function of the ball roller with a plunger function, the columnar convex portion is Since it is pressed toward the bottom of the columnar recess, rattling between the lower surface of the columnar protrusion and the bottom of the columnar recess is small, thereby suppressing vibration and rattling of the monitor.

FIG. 1 is a schematic block diagram of an IABP drive to which a monitor support structure according to the present invention can be applied. FIG. 2A is a front view of a monitor support in a monitor support structure according to an embodiment of the present invention. FIG. 2B is a plan view of the monitor support of FIG. 2A. FIG. 2C is a bottom view of the monitor support of FIG. 2A. FIG. 2D is a right side view of the monitor support of FIG. 2A. FIG. 2E is a left side view of the monitor support of FIG. 2A. FIG. 3A is a perspective view of a columnar convex portion of the monitor support portion of FIG. 2A as viewed obliquely from above. FIG. 3B is a perspective view of a columnar convex portion of the monitor support portion of FIG. 2A as viewed obliquely from below. FIG. 3C is a cross-sectional view taken along the line IIIc-IIIc of FIG. 3A. FIG. 4A is a plan view of a columnar recess of the monitor installation portion of FIG. 1 and the vicinity thereof. FIG. 4B is a side view of the columnar recess of FIG. 4A and the vicinity thereof. FIG. 4C is a side view of the columnar recess of FIG. 4A and the vicinity thereof, and shows a state in which the pin portion is slid in a pulling direction. FIG. 4D is a front view of the columnar convex portion of FIG. 4A and the vicinity thereof. FIG. 5A is a cross-sectional view of a state in which the columnar protrusion of FIG. 2A is inserted into the columnar recess of FIG. 4A. FIG. 5B is a cross-sectional view of a state in which the columnar convex portion is rotated in a predetermined direction from the state of FIG. 5A.

  Hereinafter, a monitor support structure according to the present invention will be described based on an embodiment shown in the drawings.

  First, with reference to FIG. 1, an IABP driving device will be described as an example of a medical device driving device to which a monitor support structure according to the present invention is applied. The IABP driving device 1 is a device that expands and contracts a balloon of an IABP balloon catheter (not shown). A balloon catheter, which is a driven device, is used by connecting to a catheter connection portion (not shown) of the IABP driving device 1. The tip of the balloon catheter for IABP is equipped with a balloon that expands and contracts in accordance with the heartbeat of the heart, and the balloon is used by being placed in the descending aorta.

  The IABP drive device 1 has a main body case 2 and a monitor 3. The monitor unit 3 is supported by a monitor installation unit 4 provided on the upper portion (upper surface) of the main body case 2 via a monitor support unit (base) 5.

  In the inside of the main body case 2, pressure generating means (not shown) as a drive unit for expanding and contracting the balloon of the IABP balloon catheter is accommodated. The pressure generating means includes a gas tank for storing a gas such as helium for expanding a balloon, a pressure chamber maintained at a predetermined pressure, a pressure transfer partition system (isolator) for transmitting pressure, piping for connecting the pressure chamber, It has a solenoid valve and so on. A plurality of casters 21 are provided at the bottom of the main body housing 2, and the IABP driving device 1 can be moved quickly as needed.

  The monitor unit 3 is detachably attached to the monitor installation unit 4 of the main housing unit 2 via the monitor support unit 5. The monitor unit 3 has a substantially rectangular flat plate shape, and the outer peripheral portion of the monitor unit 3 is protected by a resin shock absorber. Further, the monitor unit 3 is connected to the main body casing unit 2 by a cable (not shown), and can communicate with devices housed inside. The monitor unit 3 has a display unit 31, a control unit (not shown), a pilot lamp 32, an operation unit 33, and the like.

  The display unit 31 is disposed on the surface side of the monitor unit 3 and can display the driving state of the balloon catheter, which is a driven device, in the form of a chart or the like. The display unit 31 is configured of a liquid crystal display, and the display content of the display unit 31 is controlled by a control unit incorporated in the monitor unit 3. The control unit is housed inside the monitor unit 3 and is configured by a microprocessor, a memory, and the like. The control unit receives signals from various devices housed in the main body housing 2, the balloon catheter, and other parts of the monitor 3, and performs arithmetic processing to generate pressure generating means in the main body housing 2, And controls the display unit 31, the pilot lamp 32, and the like.

  The pilot lamp 32 is disposed at the top of the monitor 3 and represents the driving state of the balloon catheter. The pilot lamp 32 is configured of a transparent or translucent cover and a plurality of LEDs or the like disposed inside the cover. The control unit changes the lighting color and the lighting state (always lighting, blinking and extinguishing) of the pilot lamp 32 according to the driving state of the balloon catheter. The pilot lamp 32 is projected from the shock absorber back and forth so that the pilot lamp 32 can be visually recognized when the operator is in any direction of the front side, the back side, and the side with respect to the monitor 3. Is located at the top center of the

  The operation unit 33 is disposed on the surface side of the monitor unit 3 in the same manner as the display unit 31, and is disposed below the display unit 31. The operation unit 33 is composed of a plurality of buttons, selection keys, etc. The operator of the IABP drive device 1 inputs an operation signal via the operation unit 33 to start, stop, or drive the IABP drive device 1. It is possible to change conditions etc. The lower part of the monitor 3 where the operation part 33 is disposed has a shape that is inclined 15 degrees to 20 degrees toward the front where the surface is facing with respect to the upper part of the monitor 3 where the display 31 is disposed. Have. Since the monitor unit 3 having such a shape can accurately perform the button operation of the operation unit 33 in a state where the display unit 31 is set close to the vertical, the visibility and the operability can be compatible.

  The monitor unit 3 is provided at the upper end of a substantially columnar monitor support unit 5 extending in the vertical direction from the main body case 2 and has a movable unit 34 movable in a predetermined direction. Although not shown, the movable portion 34 is a first movable portion movable in a rotational direction with the monitor support portion 5 as a central axis, and a second movable movable in a rotational direction with a horizontally disposed axis as a central axis. Have a part. A monitor insertion portion is provided in the second movable portion, and the monitor portion 3 is detachably attached to the monitor insertion portion. The monitor unit 3 can change the posture in the horizontal direction having the central axis in the vertical direction by the first movable portion, and change the posture in the inclination direction having the central axis in the horizontal direction by the second movable portion Can.

  The monitor support 5 is configured as shown in FIGS. 2A to 2E and FIGS. 3A to 3C. The monitor support portion 5 has a substantially cylindrical (or cylindrical) column portion 6 and a substantially cylindrical columnar convex portion 7. The columnar convex portion 7 is set to have a diameter larger than that of the support portion 6, and is disposed substantially coaxially with the lower portion of the support portion 6, and integrally fixed by a plurality of bolts (not shown).

  The columnar convex portion 7 is detachably and rotatably fitted to a columnar concave portion (see FIG. 4A, which will be described in detail later) 8 of the monitor installation portion 4 and contacts the bottom surface 81 of the columnar concave portion 8 when fitted. It has a contactable lower surface 71.

  The columnar convex portion 7 has a pair of axial notch portions (cutout portions) 72, 72 at positions opposite to each other by approximately 180 degrees in the side portions thereof. These axial notches 72 are recessed in the side surface of the columnar convex portion 7 so that the corresponding claw members (see FIG. 4A, details will be described later) 83 pass without interference when fitted in the columnar concave portion 8 Thus, it is formed to extend from the lower surface to the upper surface of the columnar convex portion 7.

  The columnar convex portion 7 has a pair of circumferential notch portions (engagement portions) 73, 73 at positions opposite to each other by approximately 180 degrees in the side portions thereof. The circumferential notches 73 are continuous with the upper end of the corresponding axial notch 72 at one end in the circumferential direction, and the bottom of the circumferential convex 73 is substantially parallel to the lower surface 71 of the columnar convex 7. It is formed to be recessed on the side surface, and the upper portion thereof reaches the upper surface of the columnar convex portion 7. In the circumferential direction notch portion 73, the columnar convex portion 7 is fitted into the columnar concave portion 8, and the columnar convex portion 7 is rotated about its central axis in a predetermined direction (in the embodiment, counterclockwise in plan view) In this case, the bottom surface is engaged with a part (lower surface) of the corresponding claw member 83, and functions as an engaging portion that presses the lower surface 71 of the columnar protrusion 7 so as to abut the bottom surface 81 of the columnar recess 8. It is a thing. The other end of the circumferential notch 73 opposite to the one end is a side surface to which the claw member 83 can abut.

  The columnar convex portion 7 has a lock hole 74 opened on the side surface thereof. The lock hole 74 is formed so as to open on the side surface of the columnar convex portion 7 so that the distal end portion of the lock pin (see FIGS. 4A to 4D, detailed later will be inserted). .

  The columnar convex portion 7 has a guiding portion 75 formed of a three-dimensional curved surface on the side surface thereof. When the guiding portion 75 is rotated in a predetermined direction after the insertion of the columnar protrusion 7 into the columnar recess 8 and after the insertion, the distal end portion of the lock pin 84 interferes with the columnar protrusion 7 to prevent the rotation. In order to prevent this, while being appropriately pressed outward, the lock hole 74 is guided so as to be smoothly inserted.

  A pair of ball rollers with ball function (ball plungers) 76 are attached to the lower surface of the columnar convex portion 7. The plunger function-equipped ball roller 76 is a component configured to hold a ball roller rotatable in an arbitrary direction so as to be able to move forward and backward to the ball holding body by utilizing the biasing force of a spring (compression coil spring). As shown in FIG. 3C, the plunger function-equipped ball roller 76 forms holes 77 and 77 so as to open on the lower surface of the columnar convex portion 7, and screw or press-fit the ball holder into the hole 77. Can be provided by The ball roller 76 with a plunger function urges the lower surface of the columnar convex portion 7 to be separated from the bottom surface of the columnar concave portion 8 when the columnar convex portion 7 is inserted into the columnar concave portion 8. It is a component for performing rotation in the direction smoothly.

  The monitor setting unit 4 is configured as shown in FIGS. 4A to 4D. The monitor mounting portion 4 has a bottom surface 81, and is provided on a receiving member 82 defining a substantially cylindrical columnar recess 8 whose upper surface is opened, and the upper portion of the columnar recess 8 (receiving member 82) It has a pair of claw members 83 and 83 provided so that a part may project inside rather than the inside of pillar-shaped crevice 8. As shown in FIG. The pair of claw members 83, 83 are fixed by screws at positions facing each other approximately 180 degrees.

  The receiving member 82 is provided with a through hole extending from one side surface thereof to the inner surface of the columnar recess 8. The lock pin 84 is slidably inserted through the through hole. The lock pin 84 has a head and a pin portion 84a which can be gripped by hand, and the pin portion 84a is set to a diameter and a length such that it can be inserted in and removed from the lock hole 74 of the columnar protrusion 7 described above. It is done. The lock pin 84 is biased by a spring so that the tip end portion of the pin portion 84 a protrudes inward from the inner surface of the columnar recess 8 in a state in which no external force is applied.

  The lock pin 84 has the leading end of the pin portion 84 a by the guiding portion 75 of the columnar convex portion 7 when the columnar convex portion 7 is inserted into the columnar concave portion 8 and when the columnar convex portion 7 is rotated in a predetermined direction after being inserted. By being pressed, the tip portion of the pin portion 84 a is retracted from the inner surface of the columnar recess 8 by sliding outward as shown by the arrow in FIG. 4C. When the lock hole 74 of the columnar protrusion 7 corresponds to the pin portion 84 a of the lock pin 84, the tip of the pin portion 84 a is inserted into the lock hole 74 by the biasing force of the spring. The rotation of the cylindrical concave portion 8 is restricted, and the cylindrical convex portion 7 is fixed to the columnar concave portion 8 by the engagement of the bottom surface of the circumferential notch 73 and the lower surface of the claw member 83.

  The lock pin 84 holds its head and slides it in the direction shown by the arrow in FIG. 4C (drawing direction) against the biasing force of the spring so that the tip of the pin portion 84a has a columnar shape. It can be made to retreat from the inner surface of the recess 8.

  A pair of ball receiving holes 85 are formed on the bottom surface 81 of the columnar recess 8. These ball receiving holes 85 insert the columnar convex portion 7 into the columnar concave portion 8 and rotate it in a predetermined direction, and the tip of the pin portion 84 a of the lock pin 84 is inserted into the lock hole 74 of the columnar convex portion 7 When a possible position is reached, the ball of the plunger functional ball roller 76 is disposed at a position where it can be fitted.

  The mounting and demounting of the monitor support unit 5 with respect to the monitor mounting unit 4 is performed in the following procedure. When the monitor unit 3 is detachable from the monitor support unit 5 as in the present embodiment, it is preferable that the operation be performed with the monitor unit 3 removed from the monitor support unit 5. However, the process may be performed with the monitor unit 3 attached to the monitor support unit 5.

  First, the columnar convex portion 7 of the monitor support portion 5 is disposed as coaxial as possible with the columnar concave portion 8 in the vicinity of the columnar concave portion 8 of the monitor installation portion 4, and the axial direction notch portion 72 of the columnar convex portion 7 , 72 are arranged in the portions of the corresponding claw members 83, 83 projecting into the columnar recess 8 (hereinafter, these portions may also be referred to as the claw members 83), the central axis of the columnar convex portion 7 Adjust the posture around.

  Next, when the columnar convex portion 7 is inserted (inserted) into the columnar concave portion 8 so that the claw members 83 pass through the axial notch portions 72, 72, a part of the lower surface 71 of the columnar convex portion 7 and the ball with a plunger function The roller 76 abuts on the bottom surface 81 of the columnar recess 8. In the present embodiment, two ball rollers 76 with a plunger function are provided on a straight line passing through the center of the columnar convex portion 7. Therefore, two points at which these ball rollers 76 with a plunger abut It will be supported at three points at one point in the vicinity of the outer peripheral portion of the lower surface 71 of the convex portion 7.

  In this state, as shown in FIG. 5A, the tip end of the pin portion 84a of the lock pin 84 is in pressure contact with a part of the inside of the guiding portion 75 of the columnar convex portion 7, The lock pin 84 is pushed against the biasing force of the spring by the pressing force received from the guiding portion 75 according to the positional relationship of In this state, the tip end of the pin portion 84a of the lock pin 84 may be in contact with or slightly separated from a part of the guiding portion 75 of the columnar convex portion 7. In this case, the lock The pin 84 remains in the maximally projecting state.

  Next, the columnar protrusion 7 is rotated relative to the columnar recess 8 in a predetermined direction (counterclockwise in plan view). As a result, the claw member 83 moves relatively to the circumferential notch 73 side, and the bottom surface of the circumferential notch 73 and the lower surface of the claw member 83 slide while the columnar convex portion 7 is the bottom surface of the columnar concave portion 8 The other end of the circumferential notch 73 opposite to the axial notch 72 abuts on the claw member 83. In this state, as shown in FIG. 5B, the plunger function ball roller 76 reaches the corresponding receiving hole 85, and the ball is inserted into the receiving hole 85 and positioned by the biasing force of the plunger function.

  Further, as the columnar convex portion 7 rotates counterclockwise in the columnar concave portion 8, the lock pin 84 is pushed out by the three-dimensional curved surface of the induction portion 75 (see FIG. 4C), and the pin portion 84a The tip of the intrusive enters (see FIG. 5B), the locking function is exhibited, and the rotation of the columnar convex portion 7 with respect to the columnar concave portion 8 is restricted. Thereby, the attachment (attachment) of the monitor support unit 5 to the monitor installation unit 4 is completed.

  When the monitor support portion 5 is removed from the monitor mounting portion 4, the head of the lock pin 84 is grasped, and the lock pin 84 is drawn out as shown by the arrow in FIG. 4C. The distal end of the projection 7 is pulled out of the lock hole 74, and in this state, the columnar convex portion 7 is rotated clockwise. When the claw member 83 relatively moves from the circumferential cutout 73 to the upper part of the axial cutout 72, the claw member 83 passes the axial cutout 72 by pulling out the columnar convex portion 7 from the columnar concave portion 8. And removal is complete.

  According to the embodiment described above, since the ball roller with a plunger function 76 is provided on the lower surface of the columnar convex portion 7, when the columnar convex portion 7 is inserted into the columnar concave portion 8 and rotated, the ball roller is weak by rolling. You can work smoothly with power. Further, while the lower surface 71 of the columnar convex portion 7 is urged away from the bottom surface 81 of the columnar concave portion 8 by the plunger function of the ball roller 76 with a plunger function, the lower surface of the claw member 83 and the bottom surface of the circumferential notch 73 The column projection 7 is pressed in the direction of pressing the bottom surface 81 of the column recess 8 by the engagement of the two, so that the rattle between the lower surface 71 of the column projection 7 and the bottom surface 81 of the column recess 8 is small. Shaking and rattling can be suppressed.

  When the columnar convex portion 7 is inserted into the columnar concave portion 8 and rotated in a predetermined direction (counterclockwise), the ball of the ball roller 76 with a plunger function is the corresponding ball receiver provided on the bottom surface 81 of the columnar concave portion 8 Since the pin portion 84a of the lock pin 84 is locked by being inserted into the lock hole 74 at this position, the lock position can be easily grasped sensibly. Further, the ball of the ball roller 76 with a plunger function is fitted into the ball receiving hole 85 provided on the bottom surface 81 of the columnar recess 8 and positioned, whereby the columnar protrusion 7 is positioned in the columnar recess 8 and stabilized. It is also possible to further suppress the shaking and rattling of the monitor unit 3.

  Further, since the columnar convex portion 7 is locked to the columnar concave portion 8 by inserting the pin portion 84a of the lock pin 84 into the lock hole 74, the columnar convex portion 7 can be surely fixed to the columnar concave portion 8 Yes, it is possible to realize highly reliable mounting. Furthermore, since the lock pin 84 is pressed by the three-dimensional curved surface of the guide portion 75 and is guided in the lock hole 74 while being slid in the direction of pushing out against the biasing force of the spring, the columnar convex portion 7 Can be smoothly inserted without being caught on the lower surface of the columnar convex portion 7 when the front end of the lock pin 84 is inserted into the columnar concave portion 8, and the lock hole 74 can be smoothly inserted by rotation of the columnar convex portion 7 in a predetermined direction. Since it is guided, a series of operations can be performed smoothly.

  The embodiments described above are described to facilitate the understanding of the present invention, and are not described to limit the present invention. Therefore, each element disclosed in the embodiment described above is intended to include all design changes and equivalents that fall within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... IABP drive device 2 ... Body housing part 3 ... Monitor part 4 ... Monitor installation part 5 ... Monitor support part 6 ... Support column part 7 ... Columnar convex part 71 ... Lower surface 72 ... Axial direction notch part (notch part)
73 ... circumferential direction notch (engagement part)
74 lock hole 75 guide portion 76 ball roller 8 with plunger function columnar recess 81 bottom surface 82 receiving member 83 claw member 84 lock pin 84 a pin portion 85 ball receiving hole

Claims (2)

A monitor support structure for supporting a monitor unit via a monitor support unit on a monitor installation unit provided on an upper portion of a main body case,
The monitor installation unit
A substantially cylindrical columnar recess having a bottom surface and an open top surface;
And a claw member provided at an upper portion of the columnar recess and a part of which is provided so as to protrude inward from the inner surface of the columnar recess,
The monitor support unit
A supporting column on which the monitor unit is attached;
And a substantially cylindrical columnar convex portion integrally provided in a lower portion of the column portion and removably and rotatably fitted in the columnar concave portion,
The columnar convex portion is
A notch formed so as to be recessed in the side surface so that the part of the claw member passes without interference when the columnar recess is inserted;
When the columnar convex portion is rotated in a predetermined direction about its central axis in a state of being fitted into the columnar concave portion, the columnar convex portion is engaged with the bottom surface of the columnar concave portion. And an engaging portion for pressing toward the
The monitor support structure having at least one ball roller with a plunger function which is provided on the lower surface of the pillared convex portion and can be rotated while being urged so that the pillared convex portion is separated from the pillared concave portion. The main body housing contains a drive for driving a medical device to be connected,
The monitor support structure according to claim 1, wherein the monitor unit displays information including a driving state of the medical device.

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