42 results about "Patellar tendon" patented technology

Anterior cruciate ligament reconstruction methods and devices are designed to achieve an anatomically accurate double bundle anterior cruciate ligament reconstruction by using a single femoral and tibial tunnel. The method and devices reconstruct the two bundles of the anterior cruciate ligament in a single femoral and tibial tunnel using a bone-patellar tendon-bone graft. The methods and devices enable an accurate anatomical reconstruction of the anteromedial and posterolateral bundles by creating a single femoral and tibial tunnel as opposed to creating two tunnels in the tibia and femur.

The invention discloses a humerus greater tuberosity locking plate. The humerus greater tuberosity locking plate comprises a plate body. The plate body comprises a fixed head portion, a fixed middle portion and a fixed tail portion which are sequentially connected. Two clamping jaws are symmetrically arranged on the fixed head portion, a protrusion is arranged on the fixed middle portion, a plurality of locking screw holes and a plurality of kirschner wire temporary fixing holes are formed in the fixed middle portion, and a far-end adjusting hole and a far-end kirschner wire temporary fixing hole are formed in the fixed tail portion. The humerus greater tuberosity locking plate is reasonable in structural design, the tension band principle is applied, the patella fixing structure and the patellar tendon principle are used for reference, the clamping jaws and the protrusion are arranged ingeniously, the positions are arranged scientifically, the locking plate can be better anchored with and attached to a greater tuberosity fragment, the requirements that rotator cuff muscle activities are affected to the minimum and the fragment is firmly fixed to the maximum are met, the fixing stability is good, the safety and the effectiveness of operations are greatly improved, operation is convenient and flexible, trauma is small, and unnecessary pain is prevented from being brought to patients. In addition, the humerus greater tuberosity locking plate is simple in overall structure, low in cost, easy to realize and convenient to apply and popularize widely.

A method for imparting tension across a human knee joint which includes a femur bone, a tibia bone, a patella bone, a patellar tendon, and ligaments, wherein the ligaments and patellar tendon are under anatomical tension to connect the femur and tibia together, creating a load-bearing articulating joint. The method includes: providing a tensioning device, including: a baseplate; a top plate; and a linkage interconnecting the baseplate and the top plate and operable to move the tensioning device between retracted and extended positions, wherein the top plate is pivotally connected to the linkage so as to be able to freely pivot about a pivot axis; positioning the tensioning device between the femur and the tibia; applying an actuating force to the linkage to move the tensioning device towards the extended position, so as to impart a controlled separating force driving the femur and tibia apart to extend the ligaments.

The invention relates to a novel tibial intramedullary nail. The tibial intramedullary nail comprises a near end L1 (1) and a far end L2 (2) applicable to insertion into a medullary cavity, wherein the included angle alpha between the central line of the near end (1) and the longitudinal axis of the intramedullary nail is 18-22 degrees. The intramedullary nail takes the inner edge of a patellar tendon and an upper edge of a tibial jaw foot toe point as needle inserting points, so that damage to a patellar ligament is avoided and thus the anterior patellar pain after an operation is avoided.

A knee joint supporter which can improve the stability of the knee joint, reduce the wearer's fatigue and reduce the load on the patellar tendon includes a first anchor section formed by wrapping one end of a tubular knitted fabric around the wearer's thigh to tighten it with the fabric, a second anchor section formed by wrapping the other end of the fabric around the wearer's lower thigh to tighten it with the fabric, and a substantially U-shaped knitted supporting section joined to the first anchor section, covering the wearer's patella region and thus supporting the wearer's patella. In the circumferential direction of the fabric, the stretch resistance of the two anchor parts are larger than the stretch resistance of a base fabric section. In the length width direction of the fabric, the stretch resistance of the supporting section is larger than the stretch resistance of the base fabric section.

A method of evaluating a human knee joint which includes a femur bone, a tibia bone, a patella bone, a patellar tendon, and ligaments, wherein the ligaments and patellar tendon are under anatomical tension to connect the femur and tibia together, creating a load-bearing articulating joint, the method including: inserting into the knee joint a gap balancer that includes a tibial interface surface, an opposed femoral interface surface, and at least one force sensor, the method including: providing an electronic receiving device; moving the knee joint through at least a portion of its range of motion; while moving the knee joint, using the electronic receiving device to collect data from the at least one force sensor; processing the collected data to produce a digital geometric model of at least a portion of the knee joint; and storing the digital geometric model for further use.

The invention discloses a humerus greater tuberosity locking plate. The humerus greater tuberosity locking plate comprises a plate body. The plate body comprises a fixed head portion, a fixed middle portion and a fixed tail portion which are sequentially connected. Two clamping jaws are symmetrically arranged on the fixed head portion, a protrusion is arranged on the fixed middle portion, a plurality of locking screw holes and a plurality of kirschner wire temporary fixing holes are formed in the fixed middle portion, and a far-end adjusting hole and a far-end kirschner wire temporary fixing hole are formed in the fixed tail portion. The humerus greater tuberosity locking plate is reasonable in structural design, the tension band principle is applied, the patella fixing structure and the patellar tendon principle are used for reference, the clamping jaws and the protrusion are arranged ingeniously, the positions are arranged scientifically, the locking plate can be better anchored with and attached to a greater tuberosity fragment, the requirements that rotator cuff muscle activities are affected to the minimum and the fragment is firmly fixed to the maximum are met, the fixing stability is good, the safety and the effectiveness of operations are greatly improved, operation is convenient and flexible, trauma is small, and unnecessary pain is prevented from being brought to patients. In addition, the humerus greater tuberosity locking plate is simple in overall structure, low in cost, easy to realize and convenient to apply and popularize widely.

A method and system provide and use a patellar implant. The patellar implant includes a superior portion, an inferior portion opposite to the superior portion, an anterior portion, at least one suture attachment configured to allow the patellar implant to be attached using at least one suture. The superior portion being configured to reside below a patellar tendon and to elevate and / or tilt the patellar tendon. The inferior portion is configured to be seated in proximity to a tibia. The anterior portion is between the superior portion and the inferior portion. The anterior portion is placed in proximity to a patella. In one aspect, the method includes inserting the implant beneath the patellar tendon and between the patella and a position at which the patellar tendon is affixed to the tibia. In this aspect, the method also includes attaching the implant using at least one suture.

Methods and implants to treat anterior cruciate ligament (ACL) injuries are disclosed. The methods involve advancing the insertion of the patellar tendon to the proximal tibia by means of a partial osteotomy and a wedge-shaped cage (30). The wedge-shaped cage is specifically designed to facilitate transfer of not only compressive loads, but also of shear loads due to pull by the patellar tendon at its insertion to the tibial tuberosity. The cage decreases the angle between the patellar tendon and the common tangent plane formed by the condyles of the femur and the condyles of the tibia (sometimes called tibial plateau) and consequently modifies the internal joint force, restoring stability to the joint even if the ACL is ruptured. The methods and implants are applicable to both human and canine patients.

The present disclosure generally pertains to methods and kits for preparing an ACL repair surgical implant, the method including drilling femoral and tibial bone plugs of a tendon graft to create medial to lateral holes, and passing a braided suture around the tendinous portion of the tibial end, through soft tissue, and out the tibial end. Next, an anterior to posterior femoral hole is drilled, and a flat-braided suture is passed through the femoral medial to lateral hole and, using a bent needle, passed through junctions of the femoral bone plug and the tendinous portion and out through junctions of the tibial bone plug and the tendinous portion on both sides of the graft. Ends of the flat-braided suture are crisscrossed through the medial to lateral tibial hole. A bone-to-bone fixation suture assembly is passed through the anterior to posterior femoral hole.

A method and system provide and use a patellar implant. The patellar implant includes a superior portion, an inferior portion opposite to the superior portion, and an anterior portion. The superior portion being configured to reside below a patellar tendon and to elevate and / or tilt the patellar tendon. The inferior portion is configured to be seated in proximity to a tibia. The anterior portion is between the superior portion and the inferior portion. The anterior portion is placed in proximity to a patella. In one aspect, the method includes inserting the implant beneath the patellar tendon and between the patella and a position at which the patellar tendon is affixed to the tibia. In this aspect, the method also includes affixing the implant.

A prosthetic hard socket has a modified curvature and / or shape that improves rotational control, comfort, and range of motion including even full extension or hyperextension. The hard socket eliminates or de-emphasizes the patellar bar, to eliminate or reduce pressure on the wearer's patellar tendon, and enhances support of the anterior tibial condyle and / or tibial tubercle. Thus, the patellar tendon preferably is not weight-bearing. A lowered socket edge and / or a gap in the socket wall in the region of the patellar tendon prevents the hard structure of the socket from directly supporting or pressing upon the patellar tendon. Inwardly-protruding regions on each side of the lowered edge / gap help “capture” or otherwise press on a portion of the tibia. A flexible and / or cushioning member may be placed in the gap / trough.

The invention provides a patellar tendon attaching device used for fixing patellar tendon on tibia. The patellar tendon attaching device comprises a pressing plate; the pressing plate comprises a first fixing part, a second fixing part and an accommodating part; the first fixing part and the second fixing part are respectively arranged on the two sides of the accommodating part and both can be connected with tibia; patellar tendon can be fixed between the accommodating part and the tibia under the condition that the first fixing part and the second fixing part are both connected with tibia. According to the technical scheme of the invention, the problem of low structural strength of patellar tendon fixed with screws in the prior art can be effectively solved.

A method of evaluating a human knee joint which includes a femur bone, a tibia bone, a patella bone, a patellar tendon, and ligaments, wherein the ligaments and patellar tendon are under anatomical tension to connect the femur and tibia together, creating a load-bearing articulating joint, the method including: inserting into the knee joint a gap balancer that includes a tibial interface surface, an opposed femoral interface surface, and at least one force sensor, the method including: providing an electronic receiving device; moving the knee joint through at least a portion of its range of motion; while moving the knee joint, using the electronic receiving device to collect data from the at least one force sensor; processing the collected data to produce a digital geometric model of at least a portion of the knee joint; and storing the digital geometric model for further use.

The invention relates to a novel tibial intramedullary nail. The tibial intramedullary nail comprises a near end L1 (1) and a far end L2 (2) applicable to insertion into a medullary cavity, wherein the included angle alpha between the central line of the near end (1) and the longitudinal axis of the intramedullary nail is 18-22 degrees. The intramedullary nail takes the inner edge of a patellar tendon and an upper edge of a tibial jaw foot toe point as needle inserting points, so that damage to a patellar ligament is avoided and thus the anterior patellar pain after an operation is avoided.

The present invention provides a knee joint tibial plateau prosthesis, which includes a tibial plateau prosthesis and a tibial tubercle prosthesis, wherein the tibial tubercle prosthesis is arranged at the tibial tubercle of the tibial plateau prosthesis, and the tibial tubercle prosthesis is externally convex. Because the part of the tibial plateau prosthesis is a trabecular bone structure, there is a concave setting on the trabecular bone structure, which is used for placing the tibial tubercle from the insertion point of the patellar tendon to connect the patellar tendon to free the lower bone fragment. A solid beam with smooth surface is arranged across the notch of the beam, the beam and the bone trabecular structure are integrally arranged, and the prostheses on both sides of the beam are symmetrically provided with patellar ligament suture holes. Wherein, the placement groove can provide a replantation space for the bone fragment below the patellar tendon to be freed, and ensure that the patellar ligament is completely implanted on the tibial plateau prosthesis. The stress is dispersed, and the beam and the trabecular bone structure are integrally arranged, which further prevents the beam from loosening due to the long-term expansion and contraction of the patellar ligament.

A knee brace having a tubular elastic knitted body with at least one pressure pad arranged thereon, which, when the brace is being worn, extends across the patellar tendon. On the front side of the knitted body, a first tension strap is provided, which extends around only a certain part of the knitted body and passes over the pressure pad. On the rear side of the knitted body, a second tension strap is provided, which is offset in the height direction from the first tension strap, and which extends around only a certain part of the knitted body.

The invention relates to a bone-patellar tendon-bone graft structure and a preparation method thereof. The bone-patellar tendon-bone graft structure comprises a patellar cylinder, a patellar ligament,a tibia cylinder and a cone-shaped body, wherein the patellar cylinder and the tibia cylinder are connected to two ends of the patellar ligament through natural biological tissue, and the cone-shapedbody is formed by polishing one end of the patellar cylinder and one end of the tibia cylinder. The tips of the two conical bodies face the same direction; two circular holes with the diameter of 2 mm are respectively formed in the one-third boundary of each of the patella cylinder and the tibia cylinder, the circular holes penetrate through the patella cylinder and the tibia cylinder, and No. IImacromolecule non-absorbable braided wires penetrate through the circular holes. The bone-patellar tendon-bone graft structure has the advantage that reliable and effective transplantation and repairof fractured ligaments such as knee joint cruciate ligaments can be achieved.

The present invention relates to a patellar tendon bandage comprising: a bandage member having medial and lateral sides; and two first pressure pads on the medial front portion of the bandage member for establishing subpatellar pressure. Here, the patellar tendon bandage additionally has at least two second pressure pads on the inner side of the bandage element, wherein the two second pressure pads are positioned on the sides of the two first pressure pads Towards.