Multi-component system for manipulation of bone and soft tissues
View Patent ↗The present invention relates to devices for manipulation of bones and their associated soft-tissue structures including joints, muscles, tendons, ligaments, and nervous tissues. The devices use articulated arms that attach to bone and soft tissue to properly align bone and soft tissue for fixation. Locking members attached to the articulated arms are activated by buttons or switches to unlock the articulated arms for adjustment of the position of an attached bone and to lock the articulated arms for holding an attached bone in a stable position.
1. A device for stably manipulating bone and soft tissue, comprising:
an articulated arm comprising a first elongate shaft having a proximal and a distal end, a second elongate shaft having a proximal end and a distal end, and a hinge connecting the proximal end of the first shaft to the distal end of the second shaft;
a tissue fixing member attached to the first shaft by a ball joint; and
a locking member attached to the hinge;
wherein the locking member reversibly locks all movement in the hinge and the ball joint simultaneously.
2. The device of claim 1 , wherein the proximal end of the second shaft is connected to a stable frame by a ball joint.
3. The device of claim 1 , wherein the proximal end of the second shaft is connected to one or more elongate shafts by one or more hinges, each hinge having a locking member attached thereto.
4. The device of claim 1 , wherein the locking member is controlled by at least one button.
5. The device of claim 1 , wherein the locking member is controlled by at least one touch sensor.
6. The device of claim 1 , wherein the locking member is controlled by at least one squeezable grip.
7. The device of claim 1 , wherein the locking member comprises a potentiometer or a pressure sensor.
8. The device of claim 7 , wherein the locking member is capable of modulating the resistance in the hinge and the ball joint.
9. The device of claim 1 , wherein the locking member comprises a lock selected from the group consisting of a twist lock, a geared knob, a clamp, an electromagnet, a drum brake, a disc brake, a clasp brake, and a band brake.
10. The device of claim 1 , wherein the tissue fixing member is selected from the group consisting of a screw, a nail, a pin, a plate, a K-wire, a clamp, a vice, and strap.
11. The device of claim 1 , wherein the hinge and ball joint are motorized.
12. The device of claim 11 , wherein the locking, unlocking, and repositioning of the articulated arm is linked to the locking, unlocking, and repositioning of one or more additional articulated arms, such that locking, unlocking, and repositioning of one of the articulated arms is mirrored in each of the linked articulated arms.
13. The device of claim 11 , wherein the motorized hinge and ball joint respond to externally induced movement of the articulated arm to supplement the positioning of the articulated arm.
14. The device of claim 11 , wherein the motorized hinge and ball joint are remotely controllable.
15. The device of claim 1 , further comprising a sterile drape.
16. The device of claim 1 , further comprising a holder capable of attaching a surgical instrument.
17. A method of aligning a fractured bone; comprising the steps of:
providing a first articulated arm of claim 1 ;
engaging a first fragment of a fractured bone to the tissue fixing member of the first articulated arm;
simultaneously locking the hinge and the ball joint of the first articulated arm;
providing a second articulated arm of claim 1 ;
engaging a second fragment of the fractured bone to the tissue fixing member of the second articulated arm;
aligning the second fragment with the first fragment; and
simultaneously locking the hinge and the ball joint of the second articulated arm.
18. The method of claim 17 , further comprising the steps of:
providing one or more articulated arms of claim 1 ;
engaging one or more fragments of the fractured bone to the tissue fixing member of each of the one or more articulated arms;
aligning the one or more fragments with the first and the second fragments; and
simultaneously locking the hinges and ball joints of each of the one or more articulated arms.