15 results about "Joint axis" patented technology

A joint rotational exercise and stretching tool for strengthening muscles and connective tissues, particularly for shoulder internal and external rotation, with further applicability to the wrist, elbow, and hip. The device includes a mount, torque-generating mechanism, and ergonomic lever arm configured to align with anatomical joint axes. It enables concentric, eccentric, isometric, and passive modes of use. Unlike traditional tools that provide linear resistance or partial-range torque, this invention delivers continuous rotational resistance across the full arc of motion. Configurable mounting and ergonomic adjustments allow use across various joints, limb lengths, and exercise positions. Suitable for rehabilitation, injury prevention, and performance training in clinical, home, or athletic environments.

Surgical forceps (10) comprising a first arm (3) and an opposing second arm (4), and a joint section (2), wherein the joint section is curved and extends around the joint axis such that an inner surface of the joint section defines a cavity, the joint axis (A) passing through the cavity. Also provided is a surgical forceps (10) further comprising a first alignment edge (35) arranged perpendicular to a longitudinal axis of the first arm (3), and a second alignment edge (45) arranged perpendicular to a longitudinal axis of the second arm (4), wherein the first and second alignment edges are designed and arranged to prevent misalignment of the first and second arms when the forceps are moved into the closed position.

The utility model discloses a vertebral plate drag hook for spinal surgery, which relates to the technical field of medical instruments and comprises a mounting plate, an observation groove is arranged on the inner wall of the mounting plate, a circular groove is arranged on the inner wall of the mounting plate, an adjusting mechanism is arranged on the outer wall of the mounting plate and comprises a joint shaft, and the joint shaft is connected with the observation groove and the circular groove. Through the arrangement of the threaded rod, the sliding rod can be extruded when the drag hook is inserted, then the sliding rod can extrude the pressure spring, the pressure spring can extrude the sliding rod after the drag hook is inserted into a fixed position, and the sliding rod is pressed by the joint shaft after the drag hook is inserted into the fixed position. Then the sliding rod is inserted into the positioning groove from the circular groove to prevent the drag hook from automatically sliding, then the threaded rod is rotated, the threaded rod drives the fixing block to move when rotating, the multi-applicability is achieved, the proper drag hook can be adjusted according to different bone sizes, the situation that the drag hook is too large to affect an operation is avoided, meanwhile, the drag hook is convenient to replace, and the working efficiency is improved.

The invention relates to a prosthetic device for a lower extremity having a prosthetic knee joint having: an upper part, on which a proximal prosthetic component is arranged; a lower part, which is connected to the upper part so as to be pivotable about a knee joint axis; and a distal prosthetic component, on which a prosthetic foot is formed or can be attached, wherein the distal prosthetic component is mounted so as to be displaceable in the direction of the knee joint axis by means of an axial force acting in the longitudinal extent of the distal prosthetic component and a force transmission device is associated with the knee joint, which force transmission device, during the standing phase, converts a displacement or length change of the distal prosthetic component in the direction of the knee joint axis into a flexion moment about the knee joint axis.

The invention relates to a locking joint for an orthopaedic device, wherein the locking joint - a first joint part (2) with ◯ a first stop (6) which has a first stop surface (8), and ◯ a second stop (14) which has a second stop surface (16) and can be moved into a release position and a locking position, and - a second joint part (4) with a first contact surface (10) and a second contact surface (18), which ◯ is arranged pivotably about a joint axis (20) on the first joint part (2), wherein ◯ the pivoting movement in a first direction is limited by the first stop (6) when the first contact surface (10) rests against the first stop surface (8), and wherein ◯ the pivoting movement in a second direction is limited by the second stop (14) when the second stop (14) is in the locking position and the second contact surface (18) rests against the second stop surface (16), characterized in that the first contact surface (10) and the second contact surface (18) are arranged on a support element (12) which is pivotably arranged about a support axis on a base body (22) of the second joint part (4).

The application discloses a dexterous hand finger structure and a dexterous hand, wherein the dexterous hand finger structure comprises a base, a proximal phalanx, a middle phalanx, a distal phalanx, a first driving assembly and a second driving assembly. The proximal phalanx is hinged to the base through a first joint shaft, and the middle phalanx and the distal phalanx are sequentially hinged. The first driving assembly drives the proximal phalanx to bend through a first tendon. The second driving assembly drives the middle phalanx and the distal phalanx to bend through a second tendon. The first joint shaft is fixed to the base, and a side wall of the first joint shaft is provided with a through hole. The transmission path of the second tendon is configured as follows: the second tendon is led out from a second driver, sequentially passes through the through hole on the base and the first joint shaft, and is fixed to the distal phalanx after passing around the second joint shaft and the third joint shaft. The design makes the tendon path for driving the middle phalanx and the distal phalanx pass through the fixed joint shaft center, effectively blocks the path length interference of the tendon for the middle phalanx and the distal phalanx caused by the movement of the proximal phalanx, realizes the complete decoupling and independent precise control of the movement of each joint, and is simple and reliable in structure and suitable for precise operation scenes.

The present invention provides a bipolar surgical jaw part tool (8) and a bipolar surgical instrument (50) created therewith. The jaw part tool (8) has two, pivotally mounted arms (2, 2′), which have an electrically conductive material, and a force transmission means (9), which is operatively connected to the arms (2, 2′) and is designed to provide the instrument (50) by coupling to an instrument shaft (51) and to an actuating means (52), wherein the arms (2, 2′) are arranged on the distal side of the instrument shaft (51), and the force transmission means (9) is arranged in the instrument shaft (51) so as to be movable along a longitudinal axis (L) and capable of being brought into engagement with the actuating means (52) on the proximal side of the instrument shaft (51). The jaw part tool (8) has a jaw part core (1) made of an electrically insulating material and two recesses (10, 10′) separated from one another by a core wall (1′), each providing a joint axis (A, A′) which divides the recesses (10, 10′) into an exit and an actuation pivot region (13, 14). Each arm (2, 2′) has a mounting portion (23) between a jaw part portion and an actuating portion (21, 22), on which mounting portion the arm (2, 2′) is mounted in the recess (10, 10′) so as to be pivotable around the respective joint axis (A, A′), wherein the jaw part portion (21) extends through the exit pivot region (13) and out of the recess (10, 10′), and the actuating portion (22) is arranged in the actuation pivot region (14) of the recess (10, 10′). The jaw part tool (8) has two control tabs (3, 3′), which are connected to the force transmission means (9) and each extend into the actuation pivot region (14) of the recesses (10, 10′) and there engage with the actuating portion (22) of the respective arm (2, 2′). Furthermore, a robotic surgical instrument system is disclosed.

An exoskeleton comprising: a dorsal structure (10) connected to an arm structure (30) by a scapular structure (20) having a shoulder actuator (24) for moving the arm structure relative to the dorsal structure. The scapular structure includes a first joint (21) fixed to an upper portion (11) of the dorsal structure (10), and a carriage (23) connected to a portion of the first joint (21) for sliding relative to the first joint (21) in a direction substantially perpendicular to the first joint axis (A1). The shoulder actuator (24) is mounted on the carriage (23) by a second joint (25) having a second joint axis (A2) substantially parallel to the first joint axis (A1). The exoskeleton includes a first elastic element (27) for returning the carriage to a predetermined resting position and a second elastic element (28) for returning the carriage (23) to the first joint (21).SUMMARY FIGURE : Fig. 1.

The invention relates to a surgical instrument (1), in particular an endoscopic surgical shaft instrument, having a joint (150, 450, 550) with at least one joint axis (Y, Z); a proximal portion (100); a distal portion (200); and at least one force transmission element (310, 320, 330, 340, 350). The joint (150, 450, 550) is formed partly on the proximal portion (100) and partly on the distal portion (200), and the joint connects the proximal portion (100) and the distal portion (200). The at least one force transmission element (310, 320, 330, 340, 350) is coupled to the distal portion (200) in order to apply a torque, and the distal portion (200) can be deflected about the at least one joint axis (Y, Z) relative to the proximal portion (100) by means of the torque applied by the at least one force transmission element (310, 320, 330, 340, 350), said proximal portion (100) and / or distal portion (200) and / or at least one force transmission element (310, 320, 330, 340, 350) being monolithically formed. The invention also relates to a method for producing the surgical instrument (1).

The utility model discloses an interface device of closed thoracic drainage pipeline, relates to the field of thoracic drainage tube, one end of first joint is provided with first annular groove, and the first annular groove is provided with the second joint of cylindrical shape, one end of second joint is provided with second annular groove, and second annular groove is provided with third joint, be provided with first acting part on second joint, and first acting part drives second joint to move up and down along the direction of first joint axis, make second joint be located in or outside first annular groove, be provided with second acting part on third joint, and second acting part drives third joint to move up and down along the direction of first joint axis, make third joint be located in or outside second annular groove. The device can match various diameter drainage tubes, when connecting, can quickly match the drainage tube of different diameter, need not to replace the joint, and the operation is simple and convenient.

Exoskeleton (10) comprising at least one first part (18a, 18b, 18c, 18d, 18e) adapted to hold and move two first and second limbs of a human or animal connected to a body joint axis via a first joint, wherein the first part (18a, 18b, 18c, 18d, 18e) has a first subsection (16) and a second subsection (20a, 20b, 20c, 20d, 20e), wherein the first subsection (16) is associated with the first limb and the second subsection is associated with the second limb, wherein the first subsection (16) is arranged at a base (12) of the exoskeleton (10) and the second subsection (20a, 20b, 20c, 20d, 20e) of the first part (18a, 18b, 18c, 18d, 18e) is connected to the first subsection (16) of the first part (18a, 18b, 18c, 18d, 18e) via a first exoskeleton joint (26a, 26b, 26c, 26d, 26e) which has an exoskeleton joint axis, wherein a first drive (14a, 14b, 14c, 14d, 14e) is arranged at the base (12),which can introduce a force into the second subsection (20a, 20b, 20c, 20d, 20e) of the first part (18a, 18b, 18c, 18d, 18e) such that the second subsection (20a, 20b, 20c, 20d, 20e) of the first part (18a, 18b, 18c, 18d, 18e) is pivoted relative to the first subsection (16) of the first part (18a, 18b, 18c, 18d, 18e) about the exoskeleton joint axis of the first exoskeleton joint (26a, 26b, 26c, 26d, 26e) of the first part (18a, 18b, 18c, 18d, 18e), wherein at least a second part (18a, 18b, 18c, 18d, 18e) which is adapted to hold and move two third and fourth limbs of a human or animal connected to a joint axis via a second joint, wherein the second part (18a, 18b, 18c, 18d, 18e) has a first subsection (16) and a second subsection (20a, 20b, 20c, 20d, 20e), wherein the first subsection (16) is assigned to the third limb and the second subsection (20a, 20b, 20c, 20d, 20e) is assigned to the fourth limb,wherein the first subsection (16) of the second part (18a, 18b, 18c, 18d, 18e) is arranged at the base (12) of the exoskeleton (10) and the second subsection (20a, 20b, 20c, 20d, 20e) of the second part (18a, 18b, 18c, 18d, 18e) is connected to the first subsection (16) of the second part (18a, 18b, 18c, 18d, 18e) via a first exoskeleton joint (26a, 26b, 26c, 26d, 26e) which has an exoskeleton joint axis, characterized in that the first exoskeleton joint (26a, 26b, 26c, 26d, 26e) of a part (18a, 18b, 18c, 18d, 18e) the first exoskeleton joint (26a, 26b, 26c, 26d, 26e) of another part (18a, 18b, 18c, 18d, 18e) overlaps.

Proposed is a bearing component for an artificial knee joint, the bearing component including a body part, whose plane shape is oval, having an indentation portion formed by depressing a posterior center to a predetermined depth toward a center of the body part, a protruding portion protruding from an upper surface of the body part and introduced into an opening of a femoral component, a coupling portion provided on a lower surface of the body part, and having an engagement surface of a certain height to form a step difference with an outer circumferential surface of the body part, the engagement surface being formed on left and right sides of the coupling portion, and being not formed on an indentation surface, and a fastening portion having a plurality of coupling protrusions formed in a portion where the engagement surface of the coupling portion is not formed.

A physical human-machine interface (pHRI) (101) for a passive waist exoskeleton (100) for assisting an operator in applying a force. The pHRI (101) includes connections to the operator's body using a bra (102), a waistband (104), a rear support strap (106), and a thigh strap (108). The pHRI (101) has a rigid kinematic structure with a passive degree of freedom (pDOF), which can avoid human-machine interface displacement that causes misalignment of joint axes of rotation. The pHRI (101) has two rear struts (110, 111) capable of connecting the pelvis and torso together on both sides by bypassing a multi-joint kinematic chain of the middle and lower back of the human body and transferring the auxiliary action of the exoskeleton (100) to the human body. The pHRI (101) is characterised in that couplings (112, 113) are provided between the rear struts (110, 111) and the rigid bra (102) in order to ensure auxiliary transmission.

A prosthetic system with a prosthesis, which has two prosthetic parts that are pivotally connected together about a joint axis via a prosthetic joint with a joint upper part and with a joint lower part, and a cover element, which at least partly covers a gap between the two prosthetic parts or between one prosthetic part and the joint lower part. The cover element is pivotally mounted about a pivot axis on one prosthetic part, a component of a cosmetic prosthetic element, said component being secured to one prosthetic part or one joint part or the prosthetic joint and is coupled to the joint upper part of the prosthetic joint via at least one coupling element in a form- and / or force-fitting manner such that a pivotal movement of the prosthetic parts about the joint axis leads to a simultaneous pivotal movement of the cover element about the pivot axis.