CN2724651Y

CN2724651Y - Suspended arm for medical use

Info

Publication number: CN2724651Y
Application number: CNU2003201184442U
Authority: CN
Inventors: 梁桂添
Original assignee: 梁桂添
Current assignee: Shenzhen Glory Medical Co., Ltd.
Priority date: 2003-11-21
Filing date: 2003-11-21
Publication date: 2005-09-14
Anticipated expiration: 2013-11-21

Abstract

The utility model discloses a suspended arm for the medical use, which overcomes the defects of loose structure, big volume and unsteady transmission existing in the prior art. The essential technical proposal is that the utility model comprises a suspended base, a surface bearing, a bearing base, a swiveling supporting stand, an electrical machine and transmission mechanism, a whirling arm, a suspended arm, a suspended box, and a tool salver, and a lifting bracket. A crank-rocker mechanism is composed of the swiveling supporting stand, the electrical machine and transmission mechanism, and the lifting bracket. The upper end of the electrical machine and transmission mechanism is hinged with one side of the swiveling supporting stand, the crown bar of the lower end of the swiveling supporting stand is hinged with the lifting bracket, and the lifting bracket is hinged with the other side of the swiveling supporting stand. The whirling arm and the lifting bracket are fastened together. Therefore, the suspended box can left and right swivel a certain angle and up and down lift a certain distance. The suspended box can be used as a device for connecting the power source and air source, and placing and moving various surgical instruments at the time of operating.

Description

Medical arm

Technical field

This utility model relates to the medical arm that a kind of hospital operating room uses.

Background technology

The applicant's patent No. formerly is 02227375.1, name is called " operating room rotary suspension arm " utility model patent and has reduced the ratio of the weighing arm and the arm of force, has reduced the lifting motor momentary load, makes it durable in use.But there is following deficiency: structure is compact inadequately, and volume is bigger, and it is steady inadequately to move.

Summary of the invention

The purpose of this utility model is the deficiency that overcomes above-mentioned patent, and for operating room provides a kind of compact conformation, volume less, and the arm stably that moves.

Technical scheme below this purpose adopts can realize: the medical arm of the technical program comprises suspension pedestal, plane bearing, bearing base, rotation bracing frame, motor and drive mechanism, turning arm, arm, box and tool tray, wherein, the rotation bracing frame is by two pairs of plane bearing supportings up and down, plane bearing is assemblied on the bearing base, and bearing base is solidly installed with the suspension pedestal; One end and the arm of turning arm are hinged, and box and tool tray are contained on the arm; Its improved place is: the bracing frame of shears, and rotation in addition, motor and drive mechanism, shears three constitute a crank and rocker mechanism;

Wherein, electrode and drive mechanism mechanism comprise: one is contained in rotation micromachine on the bracing frame, that link together with reducing gear; The output shaft of this reducing gear is connected with a screw-and-nut is secondary, and nut wherein and a push rod are fixed together; The upper end of this motor and drive mechanism is hinged with one side of rotation bracing frame, and the push rod and the shears of its lower end are hinged; And the another side of shears and rotation bracing frame is hinged; Turning arm and shears are solidly installed.

It is long that distance between the hinged point of push rod and the hinged point of shears is called the arm of force; It is long that distance between the hinged point of arm and the hinged point of shears is called weighing arm; The ratio design of the arm of force and weighing arm is 1: 4-1: between 6.

Rotatablely moving of this lifting rocking arm is to use the hand propelled arm, with turning arm, shears and rotation bracing frame that arm is assembled together promptly can be under the support of plane bearing, certain angle of clockwise or counterclockwise like a cork rotation.Its elevating movement is achieved in that starter motor, the motor via reducer structure slows down, the output shaft of reducing gear drives the screw rod rotation that is attached thereto, screw rod promotion nut and the push rod that links to each other with nut move forwards or backwards, shears is swung up and down with turning arm, thereby make arm realize moving up and down.

The utility model has the advantages that: 1. the ratio of the arm of force and weighing arm design is more reasonable, and the push rod that the drive mechanism of motor is driven moves less distance promptly can allow arm realize the elevating movement of big distance; 2. substituted original gear, gear ring drive mechanism with crank and rocker mechanism, institute is so that compact conformation, volume dwindle greatly, and motion is very steady.

Description of drawings

Fig. 1 is this utility model population structure sketch map.

Fig. 2 is the A-A cutaway view of Fig. 1.

Concrete embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Referring to Fig. 1.Present embodiment comprises suspension pedestal 1, plane bearing 9, bearing base 2, turning arm 6, rotation bracing frame 3, motor and drive mechanism 4, arm 7, box 8 and tool tray 83, wherein, one end of turning arm 6 is packed on the shears 5, the other end and arm 7 are hinged on the O4 point, box 8 is contained on the arm 7, and tool tray 83 is contained on the box 8; Plane bearing 9 is assemblied on the bearing base 2 by two pairs of plane bearings 9 supportings up and down in 3 of rotation supports, and bearing base 2 is solidly installed with suspension pedestal 1; Rotation bracing frame 3, motor and drive mechanism 4, shears 5 threes constitute a crank and rocker mechanism;

Wherein, motor and reducing gear mechanism 4 comprise: one is contained in rotation micromachine on the bracing frame 3, that link together with reducing gear; The output shaft of this reducing gear is connected with a screw-and-nut is secondary, and nut wherein and a push rod 41 are fixed together; The upper end of this motor and drive mechanism 4 is hinged on the O3 point with one side of rotation bracing frame 3, and the push rod 41 and the shears 5 of its lower end are hinged on the O2 point; And shears 5 is hinged on the O1 point with the another side that rotates bracing frame 3; Turning arm 6 is solidly installed with shears 5.Wherein, the ratio of the distance between distance between O1, O2 and O1, O4 is 1: 5.

Referring to Fig. 1, Fig. 2.A box 8 also is housed on the arm 7 of present embodiment, and this box 8 is tri-prismoids, and gas end installing plate 81 is housed on one of them face, and tool tray 83 is equipped with in the below that 82, the three faceted pebbles of supply socket installing plate are installed on another face.This box is reasonable in design, and is practical and attractive.

Claims

1. medical arm that operating room is used, comprise and hang pedestal, plane bearing, bearing base, rotation bracing frame, motor and drive mechanism, turning arm, arm, box and tool tray, wherein, the rotation bracing frame is by two pairs of plane bearing supportings up and down, plane bearing is assemblied on the bearing base, and bearing base is solidly installed with the suspension pedestal; One end and the arm of turning arm are hinged, and box and tool tray are contained on the arm; It is characterized in that: the bracing frame of shears, and rotation in addition, motor and drive mechanism, shears three constitute one " crank and rocker mechanism ";

Wherein, motor and drive mechanism mechanism comprise: one is contained in rotation micromachine on the bracing frame, that link together with reducing gear; The output shaft of this reducing gear is connected with a screw-and-nut is secondary, and nut and a push rod are fixed together;

The upper end of this motor and drive mechanism is hinged with one side of rotation bracing frame, and the push rod and the shears of its lower end are hinged;

And the another side of shears and rotation bracing frame is hinged;

Turning arm and shears are solidly installed.

2. medical arm according to claim 1, the pin joint that it is characterized in that the another side of said shears and runing rest apart from the distance between the pin joint of push rod and shears be the pin joint of the another side of the arm of force and shears and runing rest be weighing arm apart from an end and the distance between the arm pin joint of turning arm ratio 1: 4-1: between 6.

3. medical arm according to claim 1 and 2, the ratio that it is characterized in that the arm of force and weighing arm is 1: 5.

4. medical arm according to claim 1 and 2 is characterized in that said box is a tri-prismoid, and the gas end installing plate is housed on one of them face, and the supply socket installing plate is installed on another face, and tool tray is equipped with in the below of the 3rd faceted pebble.