6 results about "Plane joint" patented technology

A surgical system for preparing the sacroiliac (SI) joint for a fusion, comprising a sliding joint finder and a working cannula. The working cannula comprises a body having a central axis that runs the length of the body. The body of the working cannula comprises a distal end, a proximal end and a central cavity that is positioned along the central axis of the working cannula and has suitable dimensions for sliding the working cannula over the sliding joint finder and the working cannula further comprises two protrusions extending proximally. In addition, the two protrusions have uneven lengths such that when the working cannula is inserted, the longer of the two protrusions engages the SI joint at a superior end of the SI joint and the shorter of the two protrusions engages the SI joint at an inferior end of the SI joint.

Apparatus and associated methods relate to a continuum manipulator including: at least 3 tendon cables configured to bend the continuum manipulator to a predetermined flexion range extending across 2 degrees of freedom; a plurality of sliding joints extending along the continuum manipulator, each sliding joint including: an outer ring comprising at least 3 tendon cable holes configured to receive the tendon cables to interconnect the plurality of sliding joints; and, an inner ellipsoid protrusion ring, enclosing at least one central aperture, extending from the outer ring having an inner ellipsoid protrusion ring cross-sectional surface area less than the diameter of the outer ring. Some embodiments may, for example, be used when a surgical instrument needs to be flexible and maneuverable around anatomical objects. The continuum manipulator may be used in Twin-to-Twin Transfusion Syndrome surgical operations.

Title: Rigid Parallel Robot The invention relates to a parallel robot (1) extending along a principal longitudinal axis (X), characterized in that it comprises a first frame (10), a second frame (20) mounted on the first frame by a pivot joint, a movable platform (30) connected to the second frame by a first (41), a second (42), and a third connecting rod (43), and comprising a first (50a) and a second (50b) movement element respectively connected by a pivot joint to the first and second connecting rods and by a sliding joint to the second frame, each of the connecting rods being articulated by a pivot joint and connected to a connecting element (50c) positioned on the platform such that the movement of the elements allows the platform to be translated, and the movement of the second frame allows the platform to be rotated (R) about the principal longitudinal axis. Figure for the abstract: Fig. 1

The invention relates to a seat (10) comprising: - a backrest (12), - a seat (11), and - a leg rest (16) mechanically linked to the seat (11) by means of a deployment system (17), - a cover device (31) comprising: - a seat cover (33) fixed to the seat (11), an intermediate cover (34), and a leg rest cover (35) fixed to the leg rest (16), - the intermediate cover (34) being mechanically linked to the seat cover (33) by a first pivot joint (38.1) and a sliding joint (39) along which the first pivot joint (38.1) can slide, - the leg rest cover (35) being mechanically linked to the intermediate cover (34) by a second pivot joint (38.2), so that the intermediate cover (34) and the leg rest cover (35) can follow a movement of the Leg rest (16) moving from the retracted position to the deployed position, and vice versa. Figure 1b

Title: Rigid Parallel Robot The invention relates to a parallel robot (1) extending along a principal longitudinal axis (X), characterized in that it comprises a first frame (10), a second frame (20) mounted on the first frame by a pivot joint, a movable platform (30) connected to the second frame by a first (41), a second (42), and a third connecting rod (43), and comprising a first (50a) and a second (50b) movement element respectively connected by a pivot joint to the first and second connecting rods and by a sliding joint to the second frame, each of the connecting rods being articulated by a pivot joint and connected to a connecting element (50c) positioned on the platform such that the movement of the elements allows the platform to be translated, and the movement of the second frame allows the platform to be rotated (R) about the principal longitudinal axis. Figure for the abstract: Fig. 1

The present invention describes a curvilinear helical actuator that converts curvilinear helical motion into rotational motion. The actuator comprises a helical conduit, a helical crosshead piston unit, a sliding crank pin, a crank, and an output shaft. Fluidic pressure drives the piston unit within the helical conduit, generating a curvilinear motion, which is then transferred as rotational motion to the crank via the crank pin that is connected to the crank using a sliding joint. The actuator features configurations for dual opposing pistons, single acting without spring, and single acting with spring, enhancing control for applications such as prosthetic limbs and robotics. Additionally, it supports extended motion ranges exceeding 360 degrees. Its compact design and efficient motion conversion make it suitable for medical devices, aerospace, automotive, and manufacturing industries, providing precise and reliable motion control.