7 results about "Radial deviation" patented technology

The application provides a kind of based on the tension whole wrist exoskeleton of cable drive, including battery pack and drive unit, first support exoskeleton is adapted to patient's forearm by wearing;Second support exoskeleton is adapted to patient's palm by wearing;Flexion and extension tensioning piece and ulnar and radial tensioning piece are sequentially threaded through first support exoskeleton and second support exoskeleton, when flexion part extends from first direction to flexion and extension drive part, extension part extends along second direction opposite to first direction, when ulnar deviation part extends from third direction to ulnar and radial drive part, radial deviation part extends along fourth direction opposite to third direction, flexion part, extension part, ulnar deviation part and radial deviation part are respectively matched with first support exoskeleton and second support exoskeleton to provide at least four direction degrees of freedom of wrist joint movement.The application can realize that patient wears conveniently and provides multiple degrees of freedom for wrist joint movement, and then improves the treatment effect of patient rehabilitation training.

The invention discloses a pressurizing positioner for orthopedic surgery, and belongs to the technical field of orthopedic surgery instruments, a non-interference two-dimensional adjusting system is constructed through orthogonal layout of a longitudinal lead screw and a transverse lead screw in combination with a plurality of groups of sliding block-sliding groove matching structures, the longitudinal lead screw is in threaded connection with a first sliding block through a first through hole, and the transverse lead screw is in threaded connection with a second sliding block through a second through hole. Linear adjustment of the upper positioning plate in the vertical direction is achieved, and radial deviation in the adjusting process is eliminated through the limiting effect of the first side sliding groove on the first sliding block. A transverse lead screw drives an upper positioning plate to move horizontally through threaded transmission of a transverse moving block, a second side sliding groove is in sliding fit with a second sliding block to ensure the straightness of horizontal adjustment, meanwhile, a lower positioning plate is in sliding connection with a sliding rod through a fourth sliding block, the position can be adjusted in a self-adaptive mode according to the bone form, cooperative positioning is formed by the lower positioning plate and the upper positioning plate, and the positioning accuracy is improved. And the surgical requirements of irregular bones such as femoral bones and tibia can be accurately met, and the secondary adjustment probability caused by positioning deviation is remarkably reduced.

The invention discloses a humanoid mechanical arm wrist and a humanoid mechanical arm, and relates to the technical field of humanoid mechanical arms, the humanoid mechanical arm wrist comprises a forearm, a wrist, a back stretching and buckling driving assembly and an ulnar deflection and radial deflection driving assembly; the back stretching and buckling driving assembly and the ulnar deflection and radial deflection driving assembly are arranged between the forearm and the wrist side by side and are both in transmission connection with the forearm and the wrist; the ulnar deflection radial deflection driving assembly and the wrist form rotary connection rotating around a first axis, and the ulnar deflection radial deflection driving assembly can drive the wrist to rotate around a second axis; the back stretching and buckling driving assembly and the wrist form rotary connection rotating around the second axis, and the back stretching and buckling driving assembly can drive the wrist to rotate around the first axis; the first axis is perpendicular to the second axis. According to the humanoid mechanical arm wrist and the humanoid mechanical arm, adaptability and flexibility can be improved.

The invention relates to the technical field of high-pressure movable elbows, and discloses an ultrahigh-pressure large-drift-diameter movable elbow which comprises a first elbow body, a second elbow body, a sealing seat, a steel ball, a ball plug and a circlip for a hole, one end of the first elbow body is connected to one end of the second elbow body in a sleeving mode, and the first elbow body is rotationally connected with the second elbow body; the rotating gear drives the outer gear ring to rotate, the outer gear ring drives the first elbow body to synchronously rotate around the axis of the first elbow body, in the rotating process, the fixing frame is in rigid connection with the fixing ring through the connecting assembly, and a fixed supporting path is formed; the fixing frame is equivalent to a coaxial guide rail of the first elbow body, the first elbow body is forced to rotate only along the axis of the first elbow body without radial deviation, it is ensured that the axis of the first elbow body coincides with the axis of the second elbow body all the time, and sealing assembly abrasion and medium leakage caused by axis dislocation are avoided.

The utility model relates to a massage air bag cushion and a mattress. An existing massage bag body is cylindrical, and the problems that concentrated force application and radial deformation resistance cannot be achieved at the same time are solved. The massage cushion comprises a cushion body, the cushion body comprises massage bag bodies which are tightly arranged, each massage bag body comprises a circular truncated cone section and a cylindrical section which are vertically stacked and communicated with each other, the circular truncated cone sections are stacked above the cylindrical sections, and the massage bag bodies vertically stretch out and draw back through inflation and deflation and form massage stimulation which is applied upwards. The circular truncated cone section and the cylindrical section which are stacked are arranged in the massage bag body, it is ensured that the massage bag body can apply massage stimulation meeting requirements to a user, it is also ensured that the top of the massage bag body is effectively supported, radial deviation of the top of the massage bag body is prevented, and the use experience is improved.

An improved locking structure of orthopedic steel plate, comprising a steel plate, an outer sleeve and an inner core, the steel plate is provided with a through hole for the screw body to pass through, one end of the outer sleeve is fixedly connected with the steel plate, and the inner hole of the outer sleeve is coaxial with the through hole provided on the steel plate, the inner hole of the outer sleeve forms a guide channel for guiding the screw to be screwed in, and the inner core is detachably arranged in the outer sleeve, and the guide hole in the inner core is used for guiding the drilling of the drill bit. In the operation, the guide hole of the inner core is used to guide the drill bit to accurately drill, so that the lower end of the inner core is matched with the conical internal thread of the through hole, which can effectively constrain the radial deviation of the drill bit and ensure the accuracy of the drilling position. After the drilling is completed, the inner core is taken out, and then the screw is screwed in through the guide channel of the outer sleeve, the guide channel can constrain the radial displacement of the screw, so that the screw accurately passes through the through hole and is screwed into the predetermined position of the bone, avoiding the deviation of the screw into the muscle tissue, greatly improving the safety and accuracy of the operation, and facilitating the installation and disassembly operation according to the needs in the operation.

A hand brace to improving a golfer's short game is disclosed. The brace comprises a shell, a first guard and a second guard. The shell is flexible and configured to cover at least a back portion of the golfer's dominant hand, top of the wrist and lower forearm. The first guard is physically associated with the shell extending along the back of the golfer's dominant hand from and between proximately the second knuckles of the index and ring fingers, over the top of the dominant wrist and lower forearm. The first guard substantially restricts maximum extension of the golfer's dominant wrist to less than approximately 20 degrees. The second guard is physically associated with the shell extending along the back of the golfer's thumb from the nailbed to the first knuckle to substantially restrict radial deviation of the golfer's dominant wrist to less than approximately 10 degrees.