RU2009116558A

RU2009116558A - PROSTHESIS

Info

Publication number: RU2009116558A
Application number: RU2009116558/14A
Authority: RU
Inventors: Геннадий Николаевич Буров (RU); Геннадий Николаевич Буров; Владимир Александрович Большаков (RU); Владимир Александрович Большаков
Priority date: 2009-04-29
Filing date: 2009-04-29
Publication date: 2010-11-10
Also published as: RU2416380C2

Abstract

Протез предплечья, содержащий несущую гильзу с элементами крепления, размещенную в ней с возможностью поворота, приемную гильзу, искусственную кисть, а также кинематическую цепь передачи вращения от приемной гильзы к искусственной кисти, отличающийся тем, что в кинематическую цепь передачи вращения от приемной гильзы к искусственной кисти введена муфта обгона двустороннего действия, причем обойма муфты подсоединена к корпусу кисти, при этом вал приемной гильзы соединен с поводковой вилкой муфты обгона, а кулачок муфты обгона соединен с приводным валом механической передачи кисти, которая выполнена в виде неполноповоротной ортогональной передачи с гибкими связями, содержащей два корпуса, из которых первый корпус неподвижно закреплен на корпусе кисти, а второй корпус подвижно закреплен в первом корпусе с возможностью поступательного перемещения совместно с двумя неподвижно закрепленными на нем направляющими, при этом на входном валу передачи, шарнирно установленном во втором корпусе закреплен входной ролик гибкой передачи, на котором закреплена гибкая связь, выполненная, например, в виде троса, а выходной вал передачи шарнирно установлен в первом корпусе и на нем закреплен выходной ролик с закрепленной на нем гибкой связью передачи, причем на торце выходного ролика неподвижно закреплен палец кривошипа, шарнирно соединенный посредством шатуна с рычажным механизмом кисти, при этом в первом корпусе установлены два винта натяжного устройства с возможностью упора во второй корпус передачи. A prosthetic arm containing a supporting sleeve with fastening elements, rotatably placed in it, a receiving sleeve, an artificial brush, and also a kinematic chain for transmitting rotation from the receiving sleeve to the artificial brush, characterized in that the kinematic chain for transmitting rotation from the receiving sleeve to the artificial one a double-sided overtaking clutch is introduced, the sleeve of the clutch connected to the brush body, while the shaft of the receiving sleeve is connected to the drive fork of the overtaking clutch, and the cam of the overtaking clutch is connected to the drive shaft of the mechanical transmission of the brush, which is made in the form of a half-turn orthogonal transmission with flexible connections, containing two bodies, of which the first body is fixedly mounted on the brush body, and the second body is movably fixed in the first case with the possibility of translational movement together with two motionlessly fixed on it guides, while on the input shaft of the drive pivotally mounted in the second housing the input roller of the flexible transmission is fixed, on which the flexible connection is fixed, for example, in the form of a cable, and the output shaft of the transmission is pivotally mounted in the first housing and the output roller is fixed on it with a flexible transmission connection fixed to it, and at the end of the output roller the crank pin is fixedly mounted pivotally by means of a connecting rod with the lever mechanism of the brush, while in the first case two screws of the tensioning device are installed with the possibility of abutment in the second transmission case.

Claims

A prosthetic arm containing a supporting sleeve with fastening elements, rotatably placed in it, a receiving sleeve, an artificial brush, and also a kinematic chain for transmitting rotation from the receiving sleeve to the artificial brush, characterized in that the kinematic chain for transmitting rotation from the receiving sleeve to the artificial one a double-sided overtaking clutch is introduced, the sleeve of the clutch connected to the brush body, while the shaft of the receiving sleeve is connected to the drive fork of the overtaking clutch, and the cam of the overtaking clutch is connected to the drive shaft of the mechanical transmission of the brush, which is made in the form of a half-turn orthogonal transmission with flexible connections, containing two bodies, of which the first body is fixedly mounted on the brush body, and the second body is movably fixed in the first case with the possibility of translational movement together with two motionlessly fixed on it guides, while on the input shaft of the drive pivotally mounted in the second housing the input roller of the flexible transmission is fixed, on which the flexible connection is fixed, for example, in the form of a cable, and the output shaft of the transmission is pivotally mounted in the first housing and the output roller is fixed on it with a flexible transmission connection fixed to it, and at the end of the output roller the crank pin is fixedly mounted pivotally by means of a connecting rod with the lever mechanism of the brush, while in the first case two screws of the tensioning device are installed with the possibility of abutment in the second transmission case.