Artificial knee with cushion function
First Claim
Patent Images
1. An artificial knee comprising:
- a supporting portion adapted for connection to a thigh;
a knee portion having saddle-like body, a front knee pivotally sandwiched between the supporting portion and the saddle-like body and a supporting rod pivotally connected to the supporting portion; and
a brake device received in the knee portion and having an actuator securely connected to the knee portion and having a first through hole defined through the actuator and a slit defined through a periphery of the actuator to communicate with the first through hole and to divide a periphery of the actuator into an upper portion in selective engagement with the supporting portion and a lower portion a core rotatably received in the first through hole such that a load on top of the supporting portion deforms a diameter of the first through hole to lock rotation of the core so as to prevent relative pivotal movement between the saddle-like body and the front knee.
1 Assignment
0 Petitions
Accused Products
Abstract
An artificial knee has a supporting portion, a knee portion, and a leg portion. The knee portion has a saddle-like body, a front knee pivotally connected to the saddle-like body and a rear knee. The leg portion has a pneumatic cylinder received in the receiving space in the leg portion. Pivotal movement of the saddle-like body relative to the front knee is able to activate the pneumatic cylinder to provide a cushion effect to a load on top of the supporting portion.
-
Citations
15 Claims
-
1. An artificial knee comprising:
-
a supporting portion adapted for connection to a thigh;
a knee portion having saddle-like body, a front knee pivotally sandwiched between the supporting portion and the saddle-like body and a supporting rod pivotally connected to the supporting portion; and
a brake device received in the knee portion and having an actuator securely connected to the knee portion and having a first through hole defined through the actuator and a slit defined through a periphery of the actuator to communicate with the first through hole and to divide a periphery of the actuator into an upper portion in selective engagement with the supporting portion and a lower portion a core rotatably received in the first through hole such that a load on top of the supporting portion deforms a diameter of the first through hole to lock rotation of the core so as to prevent relative pivotal movement between the saddle-like body and the front knee. - View Dependent Claims (2, 3, 4)
-
-
5. An artificial knee comprising:
-
a supporting portion adapted for connection with a thigh;
a knee portion having a saddle-like body, a front knee and a rear knee, the saddle-like body is pivotally and respectively connected to a respective top of the front knee and the rear knee, a respective bottom of the front knee and the rear knee being pivotally connected to a leg portion so as to form a four-link-rod mechanism imitating the human knee operational track, a supporting rod being pivotally connected to the supporting portion; and
a brake device having an actuator securely connected to and received in the saddle-like body of the knee portion the knee portion and having a first through hole defined through the actuator and a slit defined through a periphery of the actuator to communicate with the first through hole and to divide a periphery of the actuator into an upper portion in selective engagement with the supporting portion and a lower portion a core rotatably received in the first through hole such that a load on top of the supporting portion deforms a diameter of the first through hole to lock rotation of the core so as to prevent relative pivotal movement between the saddle-like body and the front knee. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification