40 results about "Bone masses" patented technology

A one-piece or two-piece knotless suture anchor assembly for the attachment or reattachment or repair of tissue to a bone mass. The assembly allows for an endoscopic or open surgical procedure to take place without the requirement of tying a knot for reattachment of tissue to bone mass. In one embodiment, a spike member is inserted through tissue and then inserted into a dowel-like hollow anchoring sleeve which has been inserted into a bone mass. The spike member is securely fastened or attached to the anchoring sleeve with a ratcheting mechanism thereby pulling or adhering (attaching) the tissue to the bone mass.

An apparatus and method for micro-exercise apply piezoelectric stress to cells of a bone mass by inducing voltages in the bone mass. Application of dynamic, electromagnetic fields passing through the conductive bone mass induce currents and voltages locally in and around cells or groups of cells. The cells respond to the combination of mechanical stress and strain by building themselves up as they would if they had been subjected to the stress and strain of conventional exercise. Thus, micro-exercise at a cellular level of the bone mass can be stimulated as if the stress and strain had been applied to the entire bone structure of which the smaller cellular portions are constituent parts. In combination with casts or splints, the sources of electromagnetic flux may be embedded in the frame or solid structure, the protective padding added for comfort, or both.

An orthopedic implant includes an unconstrained shape and a constrained insertion shape. The orthopedic implant includes first and second legs and a body with a central axis and first and second ends. The body includes a first aperture therethrough positioned at the first end that receives a fixation device for securing the body at the first end with bone, bones, bone pieces, or tissue. The body further includes a second aperture therethrough positioned at the second end that receives a fixation device for securing the body at the second end with bone, bones, bone pieces, or tissue. The first leg extends from the body at a position interior of the first aperture, while the second leg extends from the body at a position interior of the second aperture.

An orthopedic fixation system fuses bone, bones, or bone pieces in a predetermined anatomical position. The orthopedic fixation system includes an implant that transitions between an unconstrained shape and a constrained insertion shape, a drill guide, first and second K-wires, and a cannulated drill bit. The drill guide and the first and second K-wires retain the bone, bones, or bone pieces in an anatomical position corresponding with the predetermined anatomical position. The cannulated drill bit fits over the first and second K-wires and drills, respectively, first and second drilled holes into the bone, bones, or bone pieces. After insertion of the implant into the first and second drilled holes, the implant attempts to transition from its constrained insertion shape to its unconstrained shape such that the implant continuously compresses the bone, bones, or bone pieces thereby holding the bone, bones, or bone pieces in the predetermined anatomical position.

The invention discloses a bone grafting suite. The bone grafting suite comprises a drill rod, a scraper, a bone grafting device and a blocking component, wherein the front end of the drill rod is provided with a drill which drills into bone to build a bone grafting passage; the scraper is used for scraping off bone tissue which needs to be removed in the bone; the bone grafting device is used for rebuilding a bone bed; the blocking component is used for blocking the bone grafting passage. In the bone grafting suite, the scraper is utilized to extend into the bone grafting passage to scrape off the bone tissue which needs to be removed, remove the diseased bone tissue and eliminate the source of bone diseases from the source. During later recovery, absorption of a bone bed forming material forming the bone bed and bone growth have a matching attribute, absorption of the bone bed forming material and the blocking component has a gradient, the bone bed forming material is absorbed, grows and forms new bone tissue firstly, then the blocking component is gradually absorbed by the bone to grow and form a new bone block, and finally the bone recovers to a healthy state. The bone grafting suite is simple in operation and convenient to use, meanwhile can solve the bone issue problem from the source once and for all, and reduce pain and expenditure of a patient.

The invention discloses a method for fixing open bone defect by negative-pressure closed irrigation and autograft. The method comprises the following steps of washing a wounded limb three times by using a sterile brush after anesthesia on a patient is successful; washing a wound surface and the periphery of the wound surface by using III-type entoiodine liquid and normal saline sequentially; sterilizing and paving a drape; performing debridement and probing; removing polluted, necrotic and deactivated tissues; striking off polluted tissues of capitula and medullary space; reserving free bone blocks; irrigating a wound again by using III-type entoiodine and normal saline; paving a drape again; resetting the free bone blocks; fixing the free bone blocks by selecting a steel plate, intramedullary nails or an external fixing rack; covering anadesma and soft tissues surrounding a bone planting area by using negative-pressure closed irrigation dressings; detaching a negative-pressure closed irrigation and perfusion device; probing the wound surface; selectively performing negative-pressure closed irrigation and skin flap transfer surgery or skin-grafting and negative-pressure closed irrigation surgery on the granulation wound surface again; and closing the wound surface. By using the method, infection, osteomyelitis, delayed union and bone ununion can be effectively prevented, the level of the clinical medical science is improved, and the therapeutic cost is reduced.

The invention relates to a ligament tibia dead point avulsion fracture fixing device, and the device comprises a first fixed block, a second fixed block and a suture, the first fixed block, the secondfixed block and the suture are used in a matched mode, a plurality of wings extend out of the periphery of the first fixed block and the periphery of the second fixed block, concave areas are formedbetween the wings, and clamping grooves are formed in the concave areas of the first fixed block. Holes are formed in the concave areas of the second fixed blocks. Through an arthroscope technology, tissues near a fracture block are cleaned to expose a fracture broken end; a tunnel is dug and penetrates through the bone block to the broken end of the fracture; the first fixed block is arranged ata tunnel portal on the inner side of the tibia, and the second fixed block is arranged at a tunnel portal at the fractured end; two arc-shaped rope loops are formed at the other end of the suture; thetwo arc-shaped rope loops penetrate through the tunnel and are arranged in the two opposite clamping grooves of the first fixed block in a sleeved mode respectively; and sewing thread end can be tightened. The device can be matched with an arthroscope to realize minimally invasive fixation of a fracture broken end, a small incision shortens postoperative rehabilitation time of a patient, and painand treatment cost of the patient are reduced.

The invention discloses an assembly-adjustable four-in-one osteotomy plate which comprises a four-in-one osteotomy plate main body and anterior and posterior condyle osteotomy blocks, the four-in-one osteotomy plate is designed to be of a split structure, a knee joint knee bending gap can be measured through a posterior condyle plane and a tibial plateau plane before osteotomy, the anterior condyle osteotomy amount of the femoral condyle of a knee joint can be measured through an anterior condyle plane, and the situation that the prosthesis is not stably fixed due to anterior condyle Notch appearance or insufficient osteotomy is avoided; two positioning columns are designed on the four-in-one osteotomy plate main body, and the up-down position of the four-in-one osteotomy plate main body is adjusted according to the measured knee bending gap of the knee joint and the osteotomy amount of the femoral condyle and the anterior condyle of the knee joint, so that the four-in-one osteotomy plate main body reaches the optimal osteotomy position and selects the optimal specification; and the four-in-one osteotomy plate main body is provided with a taking-out structure, so that a doctor can conveniently and quickly take down the four-side osteotomy plate main body in an operation, the operation time is shortened, infection is reduced, resection of bone mass caused by poor matching is avoided, and damage to a soft tissue balance system is reduced.

A compression tool for performing a finishing procedure, within a bore hole formed within a human jawbone so as to serve as an implantation site for a dental implant, by compression and densification processes, comprises a tapered body portion, and a plurality of flute sections disposed the body portion, wherein, when the compression tool is rotated in a clockwise direction and simultaneously axially inserted into the bore hole, the plurality of flute sections, which comprise structure for continuously cutting bone material from bone mass surrounding and defining the bore hole formed within the human jawbone, for accumulating the bone material so as to prevent the bone material from being evacuated from the implantation site, and for immediately compressing the bone material, cut from the bone mass surrounding and defining the bore hole formed within the human jawbone, back into the bone mass surrounding and defining the bore hole formed within the human jawbone will compress, compact, and enhance the density of the bone mass surrounding and defining the bore hole formed within the human jawbone.

The invention discloses a novel head marrow nail capable of preventing head and neck bone blocks from tilting backward, and belongs to the technical field of medical fracture reduction instruments. The head marrow nail with a device for preventing head and neck bone blocks from tilting back includes a main rod, a main nail and an anti-backward screw; the main rod is used for being inserted in thefemoral shaft of a patient; the first end of the main nail penetrates and is connected to the main rod, and the second end of the main nail penetrates and fixes the fracture blocks of the femoral neckand femoral head; and the first end of the anti-backward screw penetrates the main rod, and the second end of the anti-backward screw penetrates in femoral neck marrow to reach the posterior edge ofthe anterior cortex of the femoral neck. Thus, the problems, that cortical counterpoint is easy to lose and the healing rate of cortical support reduction to fracture is low during the process that postoperative sliding obtains secondary stability by adopting the structure that uses the main rod to penetrate the femoral shaft and uses the main nail to penetrate the femoral neck and femoral head, can be solved. The second end of the anti-backward screw penetrates in the femoral neck marrow to directly reach the posterior edge of the anterior cortex of the femoral neck, so that the blocking effects of preventing the cervical cortex of the head and neck bone blocks from tilting, falling, and moving backward can be achieved.

The invention discloses a preparation method of an imitated cortical bone repair material, which comprises the following steps: fully removing soft tissues, bone marrow and cartilage from a cleaned xenogeneic bone material, cleaning, degreasing, decalcifying, soaking a bone block in a glutaraldehyde solution for crosslinking treatment, soaking the bone block in proteolytic enzyme of pepsin, carrying out deproteinization treatment, compounding the xenogeneic bone material with a nano-silver gelatin solution, and finally freeze-drying to obtain a cortical bone grafting material. Degreasing, decalcification and freeze drying are carried out on the xenogeneic bone to assist in reducing antigenicity, reserving osteogenic activity and improving the osteogenic activity of the xenogeneic bone, deproteinization treatment is carried out through pepsin, damage to collagen and osteogenic factors in the bone grafting material can be reduced, and nano-silver micro powder is adopted as an antibacterial component, so that the bone grafting material has strong inhibiting and killing effects on various pathogenic microorganisms, and the bone grafting material forms a slow-release film, which can further improve the anti-infection efficacy of the xenogeneic bone grafting material.

A compression tool for performing a finishing procedure, within a bore hole formed within a human jawbone so as to serve as an implantation site for a dental implant, by compression and densification processes, comprises a tapered body portion, and a plurality of flute sections disposed the body portion, wherein, when the compression tool is rotated in a clockwise direction and simultaneously axially inserted into the bore hole, the plurality of flute sections, which comprise structure for continuously cutting bone material from bone mass surrounding and defining the bore hole formed within the human jawbone, for accumulating the bone material so as to prevent the bone material from being evacuated from the implantation site, and for immediately compressing the bone material, cut from the bone mass surrounding and defining the bore hole formed within the human jawbone, back into the bone mass surrounding and defining the bore hole formed within the human jawbone will compress, compact, and enhance the density of the bone mass surrounding and defining the bore hole formed within the human jawbone.

The invention provides a bone fracture plate assembly. The bone fracture plate assembly is matched with a bone structure and comprises a first arc-shaped plate body, a second arc-shaped plate body and a filling fixing part, wherein the first arc-shaped plate body protrudes in the direction away from the bone structure; the second arc-shaped plate body is connected with the first arc-shaped plate body and protrudes in the direction of the bone structure, and the second arc-shaped plate body is connected to the midpoint of one side edge of the first arc-shaped plate body; and the filling fixing part is connected with the first arc-shaped plate body and/or the second arc-shaped plate body. According to the technical scheme, the problem that in the related technology, the fixing effect is poor when bone fragments are fixed to the whole bone is effectively solved.

A method of bone fixation includes placing a bone plate adjacent to a lesser trochanter on a medial aspect of a femur such that at least a portion of the lesser trochanter is positioned between appendages of the bone plate, wrapping cables coupled to the bone plate about a first and second bone fragment of a proximal femur, and tightening the cables to secure the first and second bone fragments together.

Disclosed is a distal bone fracture plate for proximal humerus comprising a bone fracture plate body, the bone fracture plate body is divided into a bone fracture plate near end, a bone fracture plate middle section and a bone fracture plate far end, the bone fracture plate near end is divided into a head and a near end connecting section, the head is provided with a plurality of near end locking holes, the near end locking holes tend to be distributed in a nearly-annular structure. Near-end upper kirschner wire holes are formed in the middle of the annular structure, near-end kirschner wire holes are formed in the periphery of the near-end locking holes, near-end lower locking holes are formed in the lower ends of the near-end locking holes, middle-section sliding holes and middle-section locking holes are formed in the middle of the bone fracture plate from top to bottom, the number of the middle-section locking holes is multiple, and the number of the middle-section locking holes is multiple. A middle-section kirschner wire hole is formed between every two adjacent middle-section locking holes, and a far-end sliding hole, a far-end locking hole and a far-end kirschner wire hole are formed in the bone fracture plate far end from top to bottom. The middle Kirschner wire hole is formed in the middle section of the bone fracture plate, so that the problems that positioning is inaccurate, or small bone blocks have no place and are not easy to fix can be solved.

The invention provides a bone nail and a preparation method thereof, the bone nail comprises a nail body and a nail head, a through hole penetrating through the nail body in the radial direction is formed in one side of the nail head on the nail body, and the bone nail is made of allogeneic bone. The allogeneic bone nail disclosed by the invention has good histocompatibility, bone conductivity andbone inductivity; and fusion of transplanted bone blocks and glenoid cavities and bone ingrowth are facilitated. The allogeneic bone nail has good biomechanical properties, the elasticity modulus isclose to that of a normal human skeleton, the influence on imaging examination is small, a receiving area and a supply area can be completely creeped and replaced, and the bone nail and the bone blockhave good osteogenesis activity.