CN212394953U

CN212394953U - Ultrasonic diagnostic apparatus

Info

Publication number: CN212394953U
Application number: CN201921444592.0U
Authority: CN
Inventors: 王琰
Original assignee: Canon Medical Systems Corp
Current assignee: Canon Medical Systems Corp
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2021-01-26
Anticipated expiration: 2029-09-02

Abstract

An object of the present invention is to provide an ultrasonic diagnostic apparatus capable of releasing a locked state of an operation panel by a certain operation force in general. The ultrasonic diagnostic apparatus of the present invention includes an apparatus main body, a display, an operation panel, and an arm mechanism for supporting the operation panel in a freely rotatable manner in the left-right direction, in a freely rotatable manner in the up-down direction, and in a freely movable manner in the forward-backward direction. The tray on which the operation panel is placed is rotatably supported at the tip of the arm mechanism. A handle is provided on the tray so as to extend forward of the tray. The handle has a fixed handle portion and a rotating handle portion sharing a common axis. The rotating handle portion has a short cylindrical member into which a shaft is inserted so as to be rotatable. The locking state in which the horizontal rotation, vertical rotation, and forward and backward movement of the operation panel are restricted and the unlocking state in which the locking state is released are switched by the rotational operation of the short tubular member.

Description

Ultrasonic diagnostic apparatus

Technical Field

The utility model relates to an ultrasonic diagnostic device.

Background

Fig. 12 is a perspective view of an arm mechanism supporting a conventional operation panel. FIGS. 13 and 14 show the handlebar and brake lever of FIG. 12. The operation panel 101 of the ultrasonic diagnostic apparatus is supported by an arm mechanism 103 so as to be rotatable and movable in respective directions of up and down, left and right, and front and back, so as to be movable to a position where an operator such as a doctor can easily operate the operation panel. A display 115 for displaying various ultrasonic images is provided on the operation panel 101 via an arm mechanism 117.

An arm base 105 that supports an arm mechanism 103 of the operation panel 101 is fixed to the ultrasonic diagnostic apparatus main body. A lower arm 107 is provided on the arm base 105 via a rotary joint (not shown) so as to be rotatable in the left and right directions. The upper arm 111 is connected to the lower arm 107 via a rotary joint 109 so as to be rotatable up and down and rotatable right and left. A tray 113 on which the operation panel 101 is placed is connected to a distal end of the upper arm 111 via a rotary joint (not shown) so as to be rotatable vertically and rotatable left and right.

A handle 119 is provided on the tray 113 so as to extend forward. The operator can freely move the operation panel 101 by holding the handle 119. The rotary joint portions of the arm mechanism 117 each include a brake mechanism.

Brake wires

125, 126, 127 for operating the brake mechanism are led out from the brake mechanism and collected in a cable box 123. When the

brake wires

125, 126, 127 are pulled to apply tension to them, the brake operates to restrict the operation. The state in which the operation is restricted is referred to as a "locked state", and the state in which the operation restriction is released and the free operation is secured is referred to as an "unlocked state".

In the cable box 123, an L-shaped brake lever 121 is provided to be rotatable about a fulcrum F. The brake lever 121 is biased in a direction away from the grip 119 by a coil spring or the like. When no external force is applied to brake lever 121, brake lever 121 is separated from handlebar 119 by an urging mechanism, and

brake wires

125, 126, and 127 are pulled, thereby turning to a "locked state". When the operator pulls the brake lever 121 toward the handle against the biasing mechanism, the

brake wires

125, 126, 127 are pulled out and loosened, and the "unlocked state" is obtained.

As described above, the brake lever 121 rotates about the fulcrum F. When an operator applies an operating force to the brake lever 121, the brake lever 121 is turned to be in the "unlocked state", and the operation panel 101 can be freely moved. The action of the brake lever 121 is based on the lever principle. The more the force point is distant from the fulcrum F, the more labor required can be reduced, and the more the force point is close to the fulcrum F, the more labor required.

When the operator holds the brake lever 121 at a position distant from the fulcrum F, the brake lever 121 can be pulled by a slight force. When the operator holds the brake lever 121 at a position close to the fulcrum F, the brake lever 121 must sometimes be pulled by a force larger than expected.

Changing the force required according to the holding position of the brake lever 121 is very inconvenient for an operator such as a doctor.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide an ultrasonic diagnostic apparatus capable of releasing a locked state of an operation panel by a certain operation force.

The ultrasonic diagnostic apparatus of the present invention includes an apparatus main body, a display, an operation panel, and an arm mechanism for supporting the operation panel in a freely rotatable manner in the left-right direction, in a freely rotatable manner in the up-down direction, and in a freely movable manner in the forward-backward direction. A tray on which an operation panel is placed is rotatably supported at the tip end of the arm mechanism. A handle is provided on the tray so as to extend forward of the tray. The handle grip has a fixed grip portion and a rotating grip portion sharing a common axis. The rotating handle portion has at least one short cylindrical member inserted into the shaft in a freely rotatable manner. By the turning operation of the short tubular member, a locked state in which at least one of the horizontal turning operation, the vertical turning operation, and the forward/backward moving operation of the operation panel is restricted and a lock released state in which the locked state is released are switched. The operator can rotate the short cylindrical member by holding the rotating grip portion of the grip, and unlock the short cylindrical member, thereby arbitrarily moving the operation panel. In the target position, the locked state can be secured by the turning operation of the short cylindrical member, and the operation panel can be fixed in this position. The operator releases the lock by an operation of turning the turning handle portion, not by an operation of moving the lever member as in the conventional art. In the related art, the force required to move the lever member varies depending on the position of the grip lever member. An excessive force may be required if the position of the grip lever member is close to the fulcrum of the lever member. However, in the present embodiment, the lock can be released by the operation of turning the rotating grip portion, and therefore, the locked state can be released by applying a constant operation force regardless of the position to be gripped without changing the operation force according to the position to grip the rotating grip portion.

Since the short cylindrical member is engaged with the biasing mechanism that biases the short cylindrical member from the position corresponding to the unlocked state to the reference position corresponding to the locked state, the operator can secure the locked state by removing his hand. An improvement in operability and an improvement in safety can be expected.

When the short cylindrical member is located at the reference position, a locked state is set, and the operation panel is restricted in its horizontal rotation, vertical rotation, and forward and backward movement. When the short cylindrical member is positioned at a position rotated by a predetermined angle from the reference position, the unlocked state is set. In the unlocked state, the restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation of the operation panel are released. The operator can release the restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation all at once by a single action on the short cylindrical member.

When the short cylindrical member is located at the reference position, a locked state is set, and the operation panel is restricted in its left-right rotation, up-down rotation, and front-back movement. The 1 st lock release state is set when the short cylindrical member is located at the 1 st position rotated by the 1 st angle from the reference position. In the 1 st unlocked state, the restriction of the forward and backward movement of the operation panel is released, and the horizontal rotation and vertical rotation of the operation panel are restricted. When the short cylindrical member is located at the 2 nd position rotated by the 2 nd angle larger than the 1 st angle, the 2 nd lock release state is set. In the 2 nd unlocked state, all of the restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation of the operation panel are released. The operator can freely select the restriction release of the forward and backward movement operation of the operation panel and the release of all the operation restrictions according to the difference of the rotation angle of the short cylindrical member.

The short tubular members are disposed at a predetermined interval on the left and right sides of the handle. The device can randomly respond to the change of the relative position of the operator and the handle.

The plurality of short cylindrical members rotate independently of each other. Since the lock cannot be released without operating the plurality of short cylindrical members, improvement in safety can be expected.

The plurality of short cylindrical members rotate in conjunction. Since the lock is released by operating any one of the plurality of short cylindrical members, improvement in operability can be expected.

The short cylindrical member is single and is disposed to be biased to the left or right side of the handle. The operator can switch between locking and unlocking by gripping the fixed grip portion near the center of the grip with one hand and gripping the short cylindrical member of the rotating grip portion with the other hand, and can expect both operability and safety.

Drawings

Fig. 1 is a perspective view showing an ultrasonic diagnostic apparatus according to an embodiment of the present invention;

fig. 2 is a perspective view showing an arm mechanism supporting the operation panel of fig. 1;

FIG. 3 is a top view showing the handle of FIG. 2;

FIG. 4 is a cross-sectional view AA in FIG. 3;

FIG. 5 is a cross-sectional view BB of FIG. 3;

fig. 6 is a supplementary explanatory view of a rotating operation of the rotating handle of fig. 3;

fig. 7 is a schematic view showing a brake system provided in the ultrasonic diagnostic apparatus of fig. 1;

fig. 8A is a diagram showing a locked state corresponding to the reference position (0 °) of fig. 6;

fig. 8B is a diagram showing a locked state corresponding to the stop position (10 °) of fig. 6;

fig. 9 is a supplementary explanatory view of a rotating operation of the rotating handle in another embodiment of the present invention;

fig. 10A is a diagram showing a locked state corresponding to the reference position (0 °) of fig. 9;

fig. 10B is a view showing a locked state corresponding to the 1 st stop position (5 °) of fig. 9;

fig. 10C is a view showing a locked state corresponding to the 2 nd stop position (10 °) of fig. 9;

FIG. 11A is a view showing a modification of the grip of FIG. 3;

FIG. 11B is a view showing another modification of the grip of FIG. 3;

FIG. 11C is a view showing another modification of the grip of FIG. 3;

FIG. 11D is a view showing another modification of the grip of FIG. 3;

fig. 12 is a perspective view showing an arm mechanism supporting a prior art operation panel;

FIG. 13 is a perspective view showing the handlebar and brake lever of FIG. 12;

FIG. 14 is a top plan view illustrating the handlebar and brake lever of FIG. 12.

Detailed Description

As shown in fig. 1, the ultrasonic diagnostic apparatus includes an apparatus main body 11 that performs various controls, image generation and display processing, and the like. The apparatus main body 11 is mounted on a stand 15 with casters, for example. The apparatus main body 11 is connected to an ultrasonic probe 12, an operation panel 13, and a display 14 such as an LCD. The apparatus main body 11 scans the inside of the subject with an ultrasonic beam via the ultrasonic probe 12, and generates morphological information (B-mode image) and blood flow information (average velocity image, variance image, power image, and the like) in the living body from the reflected wave signal. The display 14 displays a B-mode image, an average velocity image, a variance image, a power image, and the like generated by the apparatus main body 11. The operation panel 13 has a sub-display for displaying various operation sections such as a switch, a button, a trackball, a mouse, and a keyboard, which are used by an operator to input various instructions, conditions, an instruction to set a region of interest (ROI), and various instructions to set image quality conditions, and displays operation information. A display arm mechanism 16 is attached to the operation panel 13, the apparatus main body 11, or the stand 15. The monitor arm mechanism 16 supports the monitor 14 so as to be rotatable left and right (about the Z axis), rotatable up and down (about the Y axis), and movable forward and backward (parallel to the X axis).

The panel arm mechanism 28 is shown in fig. 2. The panel arm mechanism 28 supports the operation panel 13 so as to be rotatable in the left-right direction (rotation about the Z axis), rotatable in the up-down direction (rotation about the Y axis), and movable in the forward-backward direction (movement parallel to the Z axis). The arm base 25 of the panel arm mechanism 28 is mounted on the apparatus main body 11 or the stand 15. The lower arm 27 is provided on the arm base 25 via a rotary joint portion 71 so as to be rotatable left and right. The upper arm 31 is connected to the lower arm 27 via rotary

joint portions

73 and 75 so as to be rotatable up and down and rotatable left and right. The tray 33 on which the operation panel 13 is mounted is connected to the tip end of the upper arm 31 via the rotary

joint portions

77 and 79 so as to be rotatable vertically and rotatable left and right. Further, brake mechanisms are attached to the rotary

joint portions

71, 73, 77, and 79, respectively. A handle 41 is provided on the tray 33 so as to extend forward. The operator can move the operation panel 13 freely while holding the handle 41.

Fig. 3 shows a top view of the handle 41. The handle 41 is attached to the tray 33 at the tray connecting portion 44. A handle main body 40 having a C-shape is connected to the tray connecting portion 44. The handle main body 40 is composed of a plurality of fixed handle portions 42 and a plurality of rotating handle portions 43. The rotating grip portion 43 is disposed on the left and right sides of the grip 41 with a predetermined gap. Typically, 2 rotating grip portions 43 are disposed on the left and right sides of the fixed grip portion 42 at the center.

Fig. 4 shows a cross-sectional AA view of fig. 3, and fig. 5 shows a cross-sectional BB view of fig. 3. In the fixed grip portion 42, a metal shaft 47 is fixedly covered with a resin cover 48. In the rotating handle portion 43, a short cylindrical member 46 made of resin is inserted into a shaft 47 through a bearing 45 so as to be rotatable. By the turning operation of the short tubular member 46, a locked state in which at least one of the horizontal turning operation, the vertical turning operation, and the forward/backward moving operation of the operation panel 13 is restricted, and a lock released state in which the locked state is released are switched. For example, the left-right rotation operation is set to the locked state when the brake mechanism of the rotary joint portion 71 is operated. The vertical rotation operation is set to a locked state when the brake mechanism of the rotary joint unit 75 is operated. The forward and backward rotation operation is set to a locked state when the brake mechanism of the rotary joint section 73 is operated.

As shown in fig. 6, the locked state is set when the short cylindrical member 46 is at the reference position, and the unlocked state is set when the short cylindrical member is at the stop position rotated by a predetermined angle, for example, 10 ° from the reference position. A rotary return spring 50 is disposed between the short cylindrical member 46 and the shaft 47 as an urging mechanism that urges the short cylindrical member 46 from a stop position corresponding to the unlocked state to a reference position corresponding to the locked state. In addition, a positioning snap spring 49 is attached to the inside of the short cylindrical member 46 in order to allow the operator to recognize that the short cylindrical member 46 has reached the stop position. The operator can recognize the rotation of the short cylindrical member 46 to the stop position by recognizing the click feeling of the projection 52 of the snap spring 49 being fitted into the recess 54 of the shaft 47.

As shown in fig. 7, the rotary

joint portions

71, 73, 75 of the arm mechanism 28 are respectively provided with brake mechanisms 61, 63, 65. The brake cables 51, 53, and 55 are led out from the brake mechanisms 61, 63, and 65, respectively, and collected in the cable box 60 that houses the lock release actuator. When the brake wires 51, 53, 55 are pulled and a tensile force is applied thereto, the brake mechanisms 61, 63, 65 are operated, and the operation panel 13 is restricted in the horizontal rotation operation, the vertical rotation operation, and the forward and backward movement operation. On the other hand, when the brake wires 51, 53, and 55 are loosened and no tension is applied thereto, the operation of the brake mechanisms 61, 63, and 65 is released to allow the rotation operation. The state in which the rotational operation is restricted is referred to as a "locked state", and the state in which the operation restriction is released and the free rotational operation is secured is referred to as an "unlocked state".

As shown in fig. 8A and 8B, locking pins 64, 66, 68 are fixed to the brake wires 51, 53, 55. Locking

grooves

74, 76, 78 are provided on the outer peripheral surface of the shaft 47. When the short cylindrical member 46 is located at the reference position (0 °), the locking pins 64, 66, 68 are inserted into the locking

grooves

74, 76, 78, respectively. When the lock pins 64, 66, 68 are inserted into the

lock grooves

74, 76, 78, a tensile force is applied to the brake wires 51, 53, 55, the brake mechanisms 61, 63, 65 are operated, and the operation panel 13 is restricted in the horizontal rotation operation, the vertical rotation operation, and the forward/backward movement operation (locked state). In the case where the short cylindrical member 46 is not operated, the short cylindrical member 46 is automatically restored to the reference position (0 °) by the urging force of the spring 50.

On the other hand, when the short cylindrical member 46 is rotated from the reference position (0 °) to the stop position (10 °) against the biasing force of the spring 50, the lock pins 64, 66, 68 are gradually pulled out from the

lock grooves

74, 76, 78, and are completely pulled out at the stop position (10 °). When the lock pins 64, 66, 68 are completely pulled out from the

lock grooves

74, 76, 78, the brake wires 51, 53, 55 are loosened, the pulling force is removed, the operation restriction of the brake mechanisms 61, 63, 65 is released, and the left-right rotation operation, the up-down rotation operation, and the forward-backward movement operation of the operation panel 13 are permitted (lock release state).

In the related art, an operation force required to move the lever member according to the position of the grip lever member varies. If the position of the grip lever member is close to the fulcrum of the lever member, an excessive operating force is required. However, in the present embodiment, the lock can be released by the operation of rotating the short cylindrical member 46 of the rotating grip portion 43, and therefore, the operating force does not vary depending on the position at which the rotating grip portion 43 is gripped, and the locked state can be released by applying a constant operating force in general regardless of the position at which the rotating grip portion 43 is gripped. Since the biasing mechanism that biases from the position corresponding to the unlocked state to the reference position corresponding to the locked state is engaged with the short cylindrical member 46, the operator can secure the locked state by removing his hand. Improvement in operability and safety can be expected.

When the short cylindrical member 46 is positioned at the reference position, a locked state is set, and the operation panel 13 is restricted from being rotated in the left-right direction, rotated in the up-down direction, and moved in the forward-backward direction. When the short cylindrical member 46 is positioned at a position rotated by a predetermined angle from the reference position, the unlocked state is set. In the unlocked state, the restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation of the operation panel 13 are released. The operator can cancel the restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation all at once by a single action on the short cylindrical member 46.

The present embodiment is modified as follows. The restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation of the operation panel 13 may be released in stages according to the rotation angle of the short cylindrical member 46. As shown in fig. 9, recesses 54, 56 are provided at two positions of the shaft 47, and the protrusions 52 of the snap spring 49 are fitted into the

recesses

54, 56, respectively. For example, when the short cylindrical member 46 is rotated by 5 °, the projection 52 of the snap spring 49 is fitted into the recess 56. This position is referred to as the 1 st stop position. When the short cylindrical member 46 is further rotated to 10 °, the projection 52 of the snap spring 49 is fitted into the recess 54. This position is referred to as the 2 nd stop position.

As shown in fig. 10A, when the short cylindrical member 46 is located at the reference position (0 °), the lock pins 64, 66, 68 are respectively fitted into the

lock grooves

74, 76, 78, as in the above-described embodiment. When the lock pins 64, 66, 68 are inserted into the

lock grooves

74, 76, 78, a tensile force is applied to the brake wires 51, 53, 55, the brake mechanisms 61, 63, 65 are operated, and the operation panel 13 is restricted in the horizontal rotation, vertical rotation, and forward and backward movement (locked state).

As shown in fig. 10B, when the short cylindrical member 46 is rotated to the 1 st stop position (5 °), the lock pins 64 and 66 are held in the state of being respectively inserted into the

lock grooves

74 and 76, and the lock pin 68 shorter than the lock pins 64 and 66 is pulled out from the lock groove 78. In this state, a tensile force is applied to the brake wires 51 and 53, the brake mechanisms 61 and 63 are operated, and the horizontal rotation operation and the vertical rotation operation of the operation panel 13 are restricted, while the brake mechanism 65 is released and the forward and backward movement operation is permitted (partially unlocked state) without applying a tensile force to the brake wire 55. The operation panel 13 cannot move up and down in the left-right direction, but can move forward and backward.

As shown in fig. 10C, when the short cylindrical member 46 is rotated to the 2 nd stop position (10 °), the locking pins 64, 66, 68 are all pulled out from the locking

grooves

74, 76, 78. In this state, no tensile force is applied to the brake wires 51, 53, and 55, the operation of the brake mechanisms 61, 63, and 65 is released, and all the movement operations of the left-right, up-down, and front-back are permitted (lock release state).

Thus, when the short cylindrical member 46 is at the reference position, the locked state is set, and the operation panel 13 is restricted in the horizontal rotation operation, the vertical rotation operation, and the forward/backward movement operation. When the short cylindrical member 46 is located at the 1 st position rotated by the 1 st angle (5 °) from the reference position, a partial unlocked state (the 1 st unlocked state) is set. In the 1 st unlocked state, the restriction of the forward and backward movement of the operation panel 13 is released, and the horizontal rotation and vertical rotation of the operation panel 13 are restricted. When the short cylindrical member 46 is located at the 2 nd position rotated by the 2 nd angle (10 °) larger than the 1 st angle, the 2 nd lock release state is set. In the 2 nd unlocked state, the restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation of the operation panel 13 are released. The operator can select the cancellation of the restriction of the forward/backward movement operation of the operation panel 13 and the cancellation of all the operation restrictions according to the difference in the angle of rotation of the short cylindrical member 46.

In the above description, the 2 rotating grip portions 43 are disposed with a predetermined gap on the left and right of the grip 41 together with the short cylindrical member 46. The 2 short cylindrical members 46 rotate independently of each other. That is, when 2 short cylindrical members 46 are simultaneously rotated to the stop position, the lock release state is secured. This is effective in terms of safety, but is low in operability. Therefore, as shown in fig. 11A and 11B, the single rotating grip portion 43 is disposed to be offset to the left or right of the grip 41 together with the short cylindrical member 46. As shown in fig. 11C, a single rotating grip portion 43 may be disposed at the center of the grip 41 together with the short cylindrical member 46. The unlocked state can also be ensured by rotating the single short cylindrical member 46 to the stop position.

When the single rotating handle portion 43 is disposed on the left side or the right side of the handle 41 together with the short cylindrical member 46, the short cylindrical member 46 may be difficult to operate depending on the relative position of the operator and the handle 41. Therefore, as shown in fig. 11D, the following may be used: the 2 rotating handle portions 43 are disposed with a predetermined gap on the left and right sides of the handle 41 together with the short cylindrical members 46, and the two short cylindrical members 46 are coupled to rotate in conjunction with each other.

While several embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various manners, and various omissions, substitutions, combinations, and changes can be made without departing from the gist of the present invention. These embodiments and modifications are included in the scope and gist of the present invention, and are included in the present invention described in the claims and the equivalent scope thereof.

Claims

1. An ultrasonic diagnostic apparatus comprises an apparatus main body, a display, an operation panel, and an arm mechanism for supporting the operation panel in a manner of freely rotating left and right, freely rotating up and down, and freely moving forward and backward,

it is characterized in that the preparation method is characterized in that,

a tray on which the operation panel is placed is rotatably supported at a distal end of the arm mechanism,

a handle is arranged on the tray and extends to the front of the tray,

the handle has a fixed handle portion and a rotating handle portion sharing a common axis,

the rotating handle portion has at least one short cylindrical member inserted into the shaft in a freely rotatable manner,

the lock state in which at least one of the horizontal rotation, vertical rotation, and forward/backward movement of the operation panel is restricted and the lock release state in which the lock state is released are switched by the rotational operation of the short cylindrical member.

2. The ultrasonic diagnostic apparatus according to claim 1,

an urging mechanism that urges from a position corresponding to the unlocked state to a reference position corresponding to the locked state is disposed between the short cylindrical member and the shaft.

3. The ultrasonic diagnostic apparatus according to claim 1,

when the short cylindrical member is at a reference position, the locked state is set, and the operation panel is restricted in its left-right rotational operation, up-down rotational operation, and forward-backward movement,

when the short tubular member is positioned at a position rotated by a predetermined angle from the reference position, the lock release state is set, and the restriction of the horizontal rotation operation, the restriction of the vertical rotation operation, and the restriction of the forward/backward movement operation of the operation panel are released.

4. The ultrasonic diagnostic apparatus according to claim 1,

when the short cylindrical member is located at the 1 st position rotated by the 1 st angle from the reference position, the 1 st lock release state is set, the restriction of the forward and backward movement of the operation panel is released, and the left and right rotation and the up and down rotation of the operation panel are restricted,

when the short cylindrical member is located at the 2 nd position rotated by the 2 nd angle larger than the 1 st angle, the 2 nd lock release state is set, and the restriction of the left-right rotation operation, the restriction of the up-down rotation operation, and the restriction of the forward-backward movement operation of the operation panel are released.

5. The ultrasonic diagnostic apparatus according to claim 1,

the short tubular members are disposed at a predetermined interval on the left and right sides of the handle.

6. The ultrasonic diagnostic apparatus according to claim 5,

the plurality of short cylindrical members rotate independently of each other.

7. The ultrasonic diagnostic apparatus according to claim 5,

the plurality of short cylindrical members rotate in conjunction.

8. The ultrasonic diagnostic apparatus according to claim 1,

the short cylindrical member is single and disposed to be biased to the left or right side of the handle.

9. The ultrasonic diagnostic apparatus according to claim 1,

the short cylindrical member is single and disposed at the center of the handle.

10. The ultrasonic diagnostic apparatus according to claim 1,

a plurality of rotary joint portions are provided in the arm mechanism, a plurality of brake mechanisms are attached to each of the plurality of rotary joint portions,

the short cylindrical member is connected to a plurality of cables drawn out from a plurality of the brake mechanisms,

a locking pin attached to the short cylindrical member is connected to the cable, a locking groove for fitting the locking pin is provided on the shaft of the handle,

the lock state is set when the lock pin is inserted into the lock groove, and the unlock state is set when the lock pin is removed from the lock groove.

11. The ultrasonic diagnostic apparatus according to claim 10,

a spring is disposed between the short cylindrical member and the shaft, the spring urging the short cylindrical member in a rotational direction in which the lock pin is inserted into the lock groove.

12. An arm mechanism for supporting an operation panel of an ultrasonic diagnostic apparatus so as to be rotatable in the left-right direction and rotatable in the up-down direction and movable in the forward-backward direction,

a tray for placing the operation panel is supported in a freely rotatable manner,

a handle is arranged on the tray and extends to the front of the tray,

the lock state in which at least one of the horizontal rotation, vertical rotation, and forward/backward movement of the operation panel is restricted, and the lock release state in which the lock state is released are switched by the rotational operation of the short cylindrical member.

13. An arm mechanism for supporting an operation panel of an ultrasonic diagnostic apparatus so as to be rotatable in the left-right direction and rotatable in the up-down direction and movable in the forward-backward direction,

the handle held by the operator for moving the operation panel is composed of a fixed handle part and a rotating handle part sharing a common shaft,

the lock state in which at least one of the horizontal rotation, vertical rotation, and forward/backward movement of the operation panel is restricted and the lock release state in which the lock state is released are switched by the turning operation of the rotary handle portion.