CN111329515A

CN111329515A - Arm booster

Info

Publication number: CN111329515A
Application number: CN201811558800.XA
Authority: CN
Inventors: 赵彦群; 陈艳娇; 陈志武; 赵野
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2020-06-26

Abstract

The invention discloses an arm power assisting device which comprises a base, a stand column, a supporting rod and a tray for supporting an arm, wherein the lower part of the stand column is connected with the base, the supporting rod is provided with a first end and a second end which are opposite, the supporting rod is movably connected with the upper part of the stand column through the first end, and the second end is provided with at least two positions with different heights in the Z-axis direction on the motion trail of the supporting rod; the tray is movably connected with the second end and can rotate around a Z axis. The arm is placed on the tray, so that the arm cannot be in a suspended state for a long time, the discomfort of the arm is relieved, and the smooth ultrasonic examination is facilitated.

Description

Arm booster

Technical Field

The invention relates to the field of medical instruments, in particular to an arm power assisting device used in ultrasonic examination.

Background

When carrying out ultrasonic examination, ultrasonic equipment and sick bed adjacent setting, the patient lies on the sick bed, and the doctor uses ultrasonic probe to sweep the patient and looks into, sweeps the in-process, and doctor's arm is in unsettled state, and the time can be for a long time because muscle is stiff and uncomfortable.

Disclosure of Invention

The invention provides a novel arm power assisting device.

The invention provides an arm power assisting device which comprises a base, a stand column, a supporting rod, a locking mechanism and a tray for supporting an arm, wherein the lower part of the stand column is connected with the base; in the Z-axis direction, the support bar has at least two working positions that can be locked by the locking mechanism, and in different working positions, the second end has different heights. The locking mechanism is only used for restricting the movement of the supporting rod in the Z-axis direction.

In one embodiment, the arm power assisting device further includes a first side link, a second side link and a connecting rod, two ends of the first side link are respectively hinged to the upright and the connecting rod, two ends of the second side link are respectively hinged to the upright and the connecting rod, the first side link and the second side link are parallel, the first side link and the second side link can swing up and down in a ZOY plane, and the connecting rod is connected to the first end of the supporting rod. The ZOY plane is vertical to the sickbed surface.

In one embodiment, the first end of the support rod is hinged to the link rod to be rotatable about the Z-axis, and the middle of the tray is hinged to the second end of the support rod.

In one embodiment, the locking mechanism includes a screw, a locking block and a sliding rod, the locking block is hinged to the first connecting rod, the locking block has a screw hole and a sliding hole which are orthogonally penetrated, one end of the sliding rod is hinged to the upright post, the other end of the sliding rod penetrates into the sliding hole, the screw is in threaded connection with the screw hole, and when the screw is screwed, the head of the screw presses the sliding rod; when the screw is unscrewed, the head of the screw leaves the sliding rod.

In one embodiment, the locking mechanism further comprises a spring, one end of the spring is connected with the upright, and the other end of the spring is connected with the first side link or the second side link.

In one embodiment, the arm power assisting device has a use state and a retracted state, and in the use state, the upright post is vertically placed in the Z-axis direction; in the retracted state, the upright is horizontally disposed in the Y-axis direction.

In one embodiment, a receiving groove is formed in a side of the upright column facing the tray, and in the retracted state, the first link rod, the second link rod and the connecting rod are retracted into the receiving groove.

In one embodiment, the lower portion of the upright is hinged to the base for rotation about the X-axis.

In one embodiment, the upper part of the upright is provided with a baffle plate, and the baffle plate is used for blocking the first connecting rod above.

In one embodiment, the support rod has a degree of freedom that is capable of rotation about the Z-axis.

In one embodiment, the upper part of the upright post is sleeved with a sliding block capable of sliding up and down along the upright post, the support rod is rotatably connected with the upright post through the sliding block, and the sliding block is locked on the upright post by the locking mechanism.

In one embodiment, the tray is arcuate.

The invention has the beneficial effects that: the arm is placed on the tray, so that the arm cannot be in a suspended state for a long time, the discomfort of the arm is relieved, and the smooth ultrasonic examination is facilitated.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of an arm power assist device;

FIG. 2 is an exploded perspective view of a first embodiment of the arm assist device;

FIGS. 3 and 4 are schematic perspective views of a second embodiment of an arm power assisting device from two different perspectives;

FIG. 5 is an exploded perspective view of the second embodiment;

FIG. 6 is a schematic perspective view of a third embodiment of an arm power assist device;

FIG. 7 is a schematic perspective view of a fourth embodiment of an arm power assist device;

FIG. 8 is an exploded perspective view of the fourth embodiment;

FIG. 9 is an exploded perspective view of a fifth embodiment of the arm assist device;

FIG. 10 is a schematic perspective view of a sixth embodiment of an arm power assist device;

FIG. 11 is an exploded perspective view of the sixth embodiment;

FIG. 12 is an exploded perspective view showing a locking structure according to a sixth embodiment;

FIG. 13 is a schematic perspective view of a lock block according to a sixth embodiment;

fig. 14 is an application scenario diagram of the sixth embodiment.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. In addition, the terms "connected" and "coupled" when used herein, unless otherwise indicated, include both direct and indirect connections (couplings).

As shown in fig. 1 and 2, a first embodiment of the arm assist device is shown. The arm power assisting device can be arranged beside a sickbed and comprises a base 1, a stand column 2, a first connecting rod 3, a second connecting rod 4, a connecting rod 5, a supporting rod 6 and a tray 7. The base 1 can be fixed at the bedside of a hospital bed. The column 2 is erected in the Z-axis direction, and the lower part of the column 2 is connected to the base 1. Two ends of the first side link 3 are respectively hinged with the upright column 2 and the connecting rod 5, and two ends of the second side link 4 are respectively hinged with the upright column 2 and the connecting rod 5, so that the upright column 2, the first side link 3, the second side link 4 and the connecting rod 5 form a planar four-bar mechanism. The first side link 3 and the second side link 4 are parallel, and the first side link and the second side link can swing up and down in a ZOY plane, and the ZOY plane can be vertical to the bed surface of a sickbed. The support bar 6 has a first end 61 and a second end 62 opposite to each other, and the first end 61 is hinged with the connecting rod 5 through a pin shaft, so that the support bar 6 can rotate around the Z axis relative to the planar four-bar mechanism. The central position of the tray 7 is hinged with the second end 62 of the support rod 6 through a pin shaft, so that the tray 7 can rotate around the Z axis relative to the support rod 6.

When the ultrasonic examination device is used, the arm power assisting device is fixed beside a sickbed through the base 1, when a doctor conducts ultrasonic examination operation, an arm can be placed on the tray 7, the first connecting frame rod 3 and the second connecting frame rod 4 of the planar four-bar mechanism swing downwards simultaneously under the action of arm pressure, and when the arm swings to a proper height, the planar four-bar mechanism is locked and kept at the proper height. When the arm moves back and forth and left and right, the tray 7 and the support rod 6 can be driven to rotate.

After the use, the arm power assisting device can be folded and folded, namely the arm power assisting device can have a use state and a folded state. Specifically, the lower parts of the base 1 and the upright post 2 are rotationally connected through a pin shaft, so that the upright post 2 can rotate around an X axis relative to the base 1, and the upright post 2 is vertically arranged in a Z axis direction in a use state; in the retracted state, the column 2 is horizontally disposed in the Y-axis direction, that is, the column 2 can rotate between the upright position and the horizontal position with respect to the base 1. The side of the upright post 2 facing the tray 7 may be provided with a receiving groove 22, and in the retracted state, the first side link 3, the second side link 4 and the connecting rod 5 are retracted into the receiving groove 22.

In the present embodiment, the Z-axis direction is a vertical direction, which can be perpendicular to the bed surface of the hospital bed; the Y-axis direction is the left-right direction and can be parallel to the bedside of the sickbed; the X-axis direction is the front-rear direction. The XOY plane is a horizontal plane. The ZOY plane is a vertical plane perpendicular to the horizontal plane. The base may also be fixed with a robotic device adjacent to the patient bed, with the arms supported by the tray, the doctor can scan the patient with the ultrasound probe.

In this embodiment, a blocking plate 21 may be provided at an upper portion of the column 2, the blocking plate 21 may block the first side link 3 at an upper portion thereof to determine an upper limit position at which the first and second side links swing upward, and a lower limit position at which the first and second side links swing downward may be determined by the column housing groove. The base 1 is provided with a clamping plate 12 fixedly matched with the bedside and a bottom plate 11 integrally connected with the clamping plate 12, the bottom plate 11 can be hinged with the lower part of the upright post through a connecting plate 8, and when a doctor presses the tray 7 by arms, the bottom plate can prevent the upright post 1 from rotating along with the

side link rods

3 and 4. The support bar 6 may be arranged horizontally, i.e. the support bar may rotate in the XOY plane.

In this embodiment, the tray can rotate around the Z axis, and also can rotate in the XOY plane along with the support rod and rotate up and down in the ZOY plane along with the planar four-bar mechanism.

In the embodiment, when the tray is pressed to a proper height by an arm, the planar four-bar mechanism can be locked by the existing locking mechanism, and after the tray is pressed to the proper position, the four-bar mechanism is manually locked by the existing locking mechanism, so that the four-bar mechanism is kept at the proper height; or as the existing elastic body is arranged, the elastic body can connect the upright post and the side link, and the four-bar mechanism is kept at the proper height through the balance of the elastic force and the arm pressure. The bracing piece can be along with plane four-bar linkage's swing and up-and-down motion, and plane four-bar linkage is by locking mechanism locking back, and the bracing piece also is locked in the Z axle direction, and the bracing piece has a plurality of operating position, and at the operating position of difference, the highly difference of bracing piece second end to can be adapted to doctor's not co-altitude demand.

In a change structure, arm booster unit includes base, stand, bracing piece and tray, and the base can be fixed with the sick bed bedside, and the lower part and the pedestal connection of stand, bracing piece have relative first end and second end, first end and stand upper portion swing joint make the bracing piece can stand the post motion relatively, and on the movement track of bracing piece, the bracing piece can be fixed a position at a plurality of operating position, and each operating position can correspond different heights. The second end is hinged to the tray to enable the tray to rotate about the Z-axis.

In the structure, the support rod can only rotate up and down relative to the upright column in a ZOY plane, for example, the support rod is hinged with the upright column through an X-direction shaft pin, or can perform composite rotation motion in an XYZ coordinate system, for example, the support rod is hinged with the upright column through a spherical hinge.

As shown in fig. 3 to 5, a second embodiment of the arm assist device is provided. The arm power assisting device comprises a base 1, a stand column 2, a supporting rod 6 and a tray 7. The base 1 can be fixed with the bedside of a hospital bed. The upright post 2 is vertically arranged in the Z-axis direction, the lower part of the upright post is connected with the base 1, the upper part of the upright post is provided with a row of position holes 23, and each position hole 23 corresponds to different heights. The upper part of the upright post 2 is sleeved with a slide block 9, and the slide block 9 is provided with a through hole 91. The first end 61 of the support bar 6 is hinged to the slide 9 via a Z-axis pin 10, so that the support bar 6 can rotate about the Z-axis relative to the column 2. The second end 62 of the support bar is hinged to the middle of the tray by a Z-axis pin 10 to allow the tray 7 to rotate about the Z-axis relative to the support bar.

When the doctor adjusts the height, the screw 13 is unscrewed, so that the sliding block 9 slides up and down along the upright post 2; after the sliding block slides to the required height, the screw 13 is screwed, the screw 13 penetrates through the through hole 91 of the sliding block to be in threaded fit with the position hole 23, the sliding block 9 is locked, and then the supporting rod is locked in the Z-axis direction.

In this embodiment, the base 1 has a clamp plate 12 for fixedly engaging with the bedside and a bottom plate 11 integrally connected to the clamp plate 12, and the bottom plate 11 may be hinged to the lower portion of the column 2 via a connecting plate 8.

In this embodiment, when the slider 9 slides up and down along the column 2, the support rod 6 moves up and down along with the slider 9 synchronously, so that the support rod has a plurality of different working positions in the Z-axis direction, the support rod can be locked at the required working positions by screws, and the second ends of the support rods have different heights at different working positions. When the doctor examines the patient, when the arm moves from front to back and from side to side, bracing piece and tray also can be along with the motion.

As shown in fig. 6, it is a third embodiment of the arm assist device. The main difference between this embodiment and the second embodiment is that the support bar 6 includes a first support bar 63 and a second support bar 64 which are hinged to each other, one end (corresponding to the first end of the support bar) of the first support bar 63 is hinged to the slider 9 via a Z-axis pin 10, the other end of the first support bar 63 is hinged to one end of the second support bar 64 via the Z-axis pin 10, and the other end (corresponding to the second end of the support bar) of the second support bar 64 is hinged to the middle of the tray 7 via the Z-axis pin 10.

In this embodiment, the first support rod can rotate around the Z axis relative to the stand, the second support rod can rotate around the Z axis relative to the first support rod, and the tray can rotate around the Z axis relative to the second support rod, that is, the first support rod, the second support rod, and the tray can all rotate in the horizontal plane. Because the bracing piece includes articulated first bracing piece and second bracing piece, the motion range is bigger and the motion is more nimble.

As shown in fig. 7 and 8, a fourth embodiment of the arm assist device is provided. The arm assisting mechanism comprises a base 1, a stand column 2, a support rod 6, a tray 7 and a sliding block 9. The base 1 can be fixed with the bedside of a hospital bed. The column 2 is cylindrical and is vertically arranged in the Z-axis direction, and the lower part of the column is connected with the base 1. The slide block 9 is sleeved on the upper part of the upright 2 and is provided with a screw hole 92. The support bar 6 includes a first support bar 63 and a second support bar 64 which are hinged. One end of the first supporting rod 63 is fixed with the sliding block 9, the other end of the first supporting rod 63 is hinged with one end of the second supporting rod 64 through the Z-direction shaft pin 10, and the other end of the second supporting rod 64 is hinged with the middle part of the tray 7 through the Z-direction shaft pin.

When the doctor adjusts the height, the screw 13 is unscrewed, so that the sliding block 9 slides up and down along the upright post 2; after the sliding block slides to the required height, the screw 13 is screwed, the screw 13 is in threaded fit with the screw hole 92 of the sliding block, and the head of the screw 13 is tightly pressed on the upright post 2, so that the sliding block is locked.

In this embodiment, the cylindrical slider is engaged with the circular column to allow the slider to rotate relative to the column. The first supporting rod is hinged with the second supporting rod, so that the second supporting rod can rotate relative to the first supporting rod. The tray is articulated with the second bracing piece, makes the tray rotate for the second bracing piece. When the doctor examines the patient, when the arm moves from front to back and from side to side, slider, first bracing piece, second bracing piece and tray also can be along with the motion.

In this embodiment, in the Z-axis direction, the support rod can move up and down along with the slider, so that the support rod has a plurality of working positions, and the second end of the support rod has different heights at different working positions.

As shown in fig. 9, a fifth embodiment of the arm assist device is provided. The main differences between this embodiment and the fourth embodiment are: the supporting rod 6 is composed of a single rod, one end of the supporting rod 6 is fixed with the sliding block 9, and the other end of the supporting rod 6 is hinged with the middle of the tray 7 through a Z-direction shaft pin 10.

As shown in fig. 10 to 14, a sixth embodiment of the arm assist device is provided. The arm power assisting device 20 comprises a base 1, a column 2, a first side link 3, a second side link 4, a connecting rod 5, a supporting rod 6 and a tray 7. The base 1 can be fixed at the bedside of a hospital bed. The column 2 is erected in the Z-axis direction, and the lower part of the column 2 is connected to the base 1. Two ends of the first side link 3 are hinged with the upright column 2 and the connecting rod 5 through X-direction pin shafts 10 respectively, and two ends of the second side link 4 are hinged with the upright column 2 and the connecting rod 5 through X-direction pin shafts 10 respectively, so that the upright column 2, the first side link 3, the second side link 4 and the connecting rod 5 form a plane four-bar mechanism. The first side link 3 and the second side link 4 are parallel, and the first side link and the second side link can swing up and down in a ZOY plane, and the ZOY plane can be vertical to the bed surface of a sickbed. The support bar 6 has a first end 61 and a second end 62 opposite to each other, and the first end 61 is hinged with the connecting rod 5 through a Z-axis pin shaft 10, so that the support bar 6 can rotate around a Z axis relative to the planar four-bar mechanism. The central position of the tray 7 is hinged with the second end 62 of the supporting rod 6 through a Z-axis pin shaft, so that the tray 7 can rotate around the Z axis relative to the supporting rod 6.

The arm power assisting device further comprises a locking mechanism, and the locking mechanism comprises a locking screw 13, a locking block 14, an X-direction pin shaft 10 and a sliding rod 15. The lock block 14 has a pin hole 142 extending in the X-axis direction, a screw hole 141 extending in the X-axis direction, and a slide hole 143 penetrating perpendicularly to the screw hole. The locking block 14 is rotatably mounted inside the first frame link 3 by the cooperation of the shaft pin 10 and the pin hole 142, one end of the sliding rod 15 is hinged to the upright post 2 by the pin shaft 10 in the X direction, the other end of the sliding rod 15 extends into the sliding hole 143 of the locking block, and the screw 13 is in threaded connection with the screw hole 141 of the locking block after passing through the through hole at the side of the first frame link. When the height needs to be adjusted, the screw 13 is unscrewed to be unlocked, and at the moment, the head of the screw is separated from the sliding rod 15, so that the planar four-bar mechanism can swing up and down in the ZOY plane; after swinging to the required height, the screw 13 is screwed, at the same time, the head of the screw 13 presses the sliding rod 15, so that the plane four-bar mechanism can not swing and is locked.

The locking mechanism may further comprise a spring 16, one end of the spring 16 being connected to the upright 2 and the other end of the spring 16 being connected to the first connecting rod 3 or the second connecting rod 4. After the locking mechanism is unlocked, the spring can enable the first and second side link rods to rebound and reset.

In use, the arm assist device 20 is fixed to the bedside of the hospital bed 30 via the base 1, and the doctor 40 can scan the patient 50 with the ultrasonic probe while the arm is supported by the tray 7.

In the embodiment, the height of the supporting rod and the tray in the Z-axis direction is adjusted by the up-and-down swing of the plane four-bar mechanism, namely, the supporting rod has a plurality of working positions; after the height is adjusted in place, the locking mechanism locks the device. In the using process, when the arms of the doctor move back and forth, the supporting rod and the tray are driven to move. The lengths of the first connecting frame rod and the second connecting frame rod of the plane four-bar mechanism can be equal or approximately equal, so that the connecting rods can be kept parallel or approximately parallel to the upright posts in the moving process.

For the arm power assisting device, the arm power assisting device comprises a base, a stand column, a supporting rod and a tray for supporting an arm, wherein the lower part of the stand column is connected with the base, the supporting rod is provided with a first end and a second end which are opposite, the supporting rod is movably connected with the upper part of the stand column through the first end of the supporting rod, the supporting rod is provided with at least two working positions on the movement track of the supporting rod, and the second ends have different heights at different working positions in the Z-axis direction. The mode of bracing piece and stand swing joint can include: the supporting rod is connected with the upright column in a sliding manner, so that the supporting rod can move up and down in the Z-axis direction relative to the upright column, and if the supporting rod is connected with the upright column through a sliding block, the sliding block can move up and down in the Z-axis direction along the upright column; the support rod is rotatably connected with the upright column, so that the support rod can swing up and down in the ZOY plane relative to the upright column, for example, the support rod is hinged with the upright column through a shaft pin, or the support rod is connected with the upright column through a plane four-bar mechanism. After the height is adjusted to the required height, the supporting rod is locked through the locking mechanism, so that the supporting rod cannot move up and down in the Z-axis direction. In order to increase the range of motion, the bracing piece can be around stand level rotation within a certain angular range.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.

Claims

1. An arm power assisting device is characterized by comprising a base, a stand column, a supporting rod, a locking mechanism and a tray for supporting an arm, wherein the lower part of the stand column is connected with the base; in the Z-axis direction, the support bar has at least two working positions that can be locked by the locking mechanism, and in different working positions, the second end has different heights.

2. The arm assist device according to claim 1, further comprising a first link, a second link, and a link, wherein both ends of the first link are respectively hinged to the upright and the link, both ends of the second link are respectively hinged to the upright and the link, the first link and the second link are parallel, the first link and the second link can swing up and down in a ZOY plane, and the link is connected to the first end of the support rod.

3. The arm assist device of claim 2, wherein the first end of the support rod is hinged to the link to be rotatable about the Z-axis, and the middle portion of the tray is hinged to the second end of the support rod.

4. The arm power assisting device according to claim 2, wherein the locking mechanism comprises a screw, a locking block and a sliding rod, the locking block is hinged to the first frame connecting rod, the locking block has a screw hole and a sliding hole which are orthogonally penetrated, one end of the sliding rod is hinged to the upright, the other end of the sliding rod penetrates into the sliding hole, the screw is in threaded connection with the screw hole, and when the screw is screwed, the head of the screw presses the sliding rod; when the screw is unscrewed, the head of the screw leaves the sliding rod.

5. The arm assist device according to claim 4, wherein the locking mechanism further comprises a spring, one end of the spring is connected to the upright, and the other end of the spring is connected to the first side link or the second side link.

6. The arm assist device according to claim 2, wherein the assist mechanism has a use state in which the pillar stands in the Z-axis direction and a storage state; in the retracted state, the upright is horizontally disposed in the Y-axis direction.

7. The arm assist device according to claim 6, wherein a side of said pillar facing said tray is provided with a receiving groove, and said first side link, said second side link and said link are received in said receiving groove in said retracted state.

8. The arm assist device according to claim 2, wherein a lower portion of the column is hinged to the base to be rotatable about an X-axis.

9. The arm assist device according to claim 2, wherein a baffle is provided at an upper portion of the column, and the baffle upwardly blocks the first link lever.

10. The arm assist device of claim 1 wherein said support bar has a degree of freedom to rotate about said Z axis.

11. The arm assist device according to claim 10, wherein a slide block capable of sliding up and down along said upright is sleeved on an upper portion of said upright, said support rod is rotatably connected to said upright through said slide block, and said lock mechanism locks said slide block to said upright.

12. The arm assist device of claim 1, wherein the tray is arcuate.