42 results about "Patellar tendon" patented technology

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 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.

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 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.

A prosthetic hard socket has a modified curvature and / or shape, which eliminates or de-emphasizes the patellar bar to eliminate or reduce pressure on the wearer's patellar tendon, and, instead, enhances support of the anterior tibial condyle and / or tibial tubercle. Thus, the preferred socket is designed with the patellar tendon preferably not being weight-bearing. The preferred curvature and / or shape comprises a lowered socket edge and / or a gap in the socket wall in the region of the patellar tendon, so that the hard structure of the socket does not directly support or press upon the patellar tendon. The invented socket may include inwardly-protruding regions on each side of the lowered edge / gap, for helping to “capture” or otherwise press on a portion of the tibia for improved rotational control. This combination of shapes and curvatures provides for improved rotational control, comfort, and range of motion including even full extension or hyperextension. A flexible and / or cushioning member may be placed in the gap / trough (that is caused by the lowered edge or removed wall portion), for example, a fabric, leather, rubber, or other member may be attached to the socket to across a V-shaped trough of the lowered edge of the hard socket.

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.

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 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.

The invention relates to a combined ankle-preserving and knee-preserving tibial shaft prosthesis, including a proximal tibial abutment and a mating segment prosthesis, wherein the base of the proximaltibial abutment is connected to the top of the mating segment prosthesis. The top of the proximal tibial abutment is provided with a bone trabecular structure the top surface center of which is provided with a groove, and the side of the proximal tibial abutment is provided with a plurality of U-shaped nail holes and a plurality of suture holes so as to reconstruct the patellar tendon and save the knee joint movement function. Two nail tracks are arranged side by side on both sides of the proximal tibial abutment. As that bone trabecular structure is use at the top of the proximal tibial abutment, the bone growth can be promoted, the groove on the top surface of the bone trabecular structure facilitates convenient insertion of cancellous bone, the artificial bone trabecula and the bone can be tightly combined, the purpose of reserving the epiphysis can be achieved, the bone growth ability of the child due to the epiphysis removal or destruction can be reduced, and the lower limb deformity can be avoided; The initial stability and long-term stability can be achieved by screw fixation, and the operation time and difficulty can be greatly reduced at the same time.

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 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 patella inferior pole fracture internal fixing device and a screw fixing method, the patella inferior pole fracture internal fixing device comprises an arc-shaped fixing plate, the arc-shaped fixing plate is attached to a patella; effectively wraps and fixes the subpatellar comminuted fracture block and limits the displacement of the subpatellar comminuted fracture block,and meanwhile, tightly contacts the patella body with the subpatellar comminuted fracture block and pressurizes and fixes the patellar body; the locking between the screw and the steel plate can effectively improve the pull-out resistance of the screw, so that the stability of the fracture block and the internal fixation device is further enhanced, and the looseness and failure of internal fixation are reduced; besides, suture tension reduction protection can be achieved, suture tension reduction stress and patellar ligament traction fracture block stress are kept in dynamic balance, fractureblock displacement or internal fixation failure during early knee bending movement is effectively avoided, meanwhile, damage interference to patellar tendons can be relieved, the tension band principle is considered, the mechanical principle is better met. And a more effective internal fixation choice is provided for treating patella inferior pole fracture, especially comminuted patella inferiorpole fracture.

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.

The invention belongs to the technical field of medical equipment and discloses a neurology examination instrument which comprises an examination instrument body, a large percussion hammer, a small percussion hammer, an LED lamp and a bottom cover. The bottom of the examination instrument body is in threaded connection with the bottom cover, the middle of the examination instrument body is provided with a handle anti-sliding sleeve, one end of the examination instrument body is connected with the large percussion hammer and the small percussion hammer through rotating heads, the top of the large percussion hammer is provided with an arc-shaped protrusion, a touch needle is positioned in the small percussion hammer, a graduated scale is arranged on one side of the small percussion hammer, the top of the examination instrument is provided with the LED lamp, and a battery jar is positioned in the examination instrument body. The neurology examination instrument is simple to operate; the large percussion hammer and the small percussion hammer are arranged and can meet the examination requirements of patellar tendon reflex and achilles tendon reflex in neurology examination; the neurology examination instrument is provided with the graduated scale to meet the measurement examination requirements; and due to the facts that the LED lamp is arranged and used for pupil examination and a battery is installed to supply energy to the LED lamp, the neurology examination instrument is more convenient, simple in structure and convenient to operate.

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 invention provides a knee joint tibial plateau prosthesis. The prosthesis comprises a tibial plateau prosthesis and a tibial tubercle prosthesis, wherein the tibial tubercle prosthesis is arrangedat tibial tubercle of the tibial plateau prosthesis, the part, bulging out of tibial plateau prosthesis, of the tibial tubercle prosthesis is of a bone trabecula structure, a placement groove which is arranged in a concave manner and used for connecting the tibial tubercle to a patellar tendon free lower bone block at a patellar tendon stop point is formed in the bone trabecula structure, a solidcross beam with a smooth surface is arranged at a groove opening of the placement groove in a spanning manner, the cross beam and the bone trabecula are integrally arranged, and patellar ligament suture holes are symmetrically formed in the prosthesis on two sides of the cross beam, wherein the placement groove can provide a back implantation space for the patellar tendon free lower bone block toensure that the patellar ligament is completely implanted in the tibial plateau prosthesis, the patellar ligament can be integrally wound and fixed through the cross beam, stress dispersion of the patellar ligament can be avoided, the cross beam and the bone trabecula structure are integrally arranged, and looseness of the cross beam under long-term telescoping drive of the patellar ligament is further avoided.

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.

The invention relates to an autologous and homogeneous composition containing adipose-derived mesenchymal stem cells for improving or treating tendon or ligament diseases, a preparation method of thecomposition, and a treatment method of the tendon or ligament diseases. In particular, the adipose-derived mesenchymal stem cells are independently administrated or are administrated in combination with hydrogel; when the adipose-derived mesenchymal stem cells disclosed by the invention are administrated to achilles tendon diseases such as patellar tendon diseases, external epicondylitis, internalepicondylitis, plantar fasciitis, spinner muscle group diseases, tendon sheath synovitis, tendon degeneration, tendon inflammation, tenosynovitis, tendon injury, tendon relaxation and the like, and the ligament diseases such as cruciate ligament injury, ankle ligament injury, collateral ligament injury and the like, the collagen, extracellular matrix (ECM) protein, and various growth factors aresecreted, so that an effect of ameliorating or treating tendon or ligament diseases is exhibited.

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.

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.