30 results about "Knee joint cavity" patented technology

The invention relates to a knee joint anterior and posterior cruciate ligament femoral tunnel positioner. The positioner comprises a hook body, wherein the hook head of the hook body extends in the knee joint cavity and points to the anterior and posterior cruciate ligament femoral insertion; the long stem of the hook head is upward and above the front of the femur of knee joint and is connected with an arc chute which is arranged laterally; a curved lever which can slide relatively to the arc chute is embedded in the arc chute; and the movable end of the curved lever is provided with a drillstem guide sleeve which directly points to the tip of the ligament hook head. By adopting the positioner of the invention, the problem that the previous arthroscope can perform observation only through the lateral approach and the visual blind area is caused, can be solved; and the reconstruction of femoral tunnel can be better performed from the physical point of the ligament, thus the reconstruction of femoral tunnel in clinic has higher repeatability and operability, the accuracy degree of operations is greatly increased, the operating time is reduced, and the positioner has great use value and wide market space.

The invention discloses an endoprosthesis for reestablishment of knee joint cruciate ligaments under a full arthroscope. The endoprosthesis comprises a first bolt prosthesis and a second bolt prosthesis which are connected to a thighbone and a shinbone respectively, wherein an artificial tendon prosthesis is connected between the first bolt prosthesis and the second bolt prosthesis; each of the first bolt prosthesis and the second bolt prosthesis comprises a bolt prosthesis front section and a bolt prosthesis back section, and the bolt prosthesis front section and the bolt prosthesis back section are in detachable connection with each other; the bolt prosthesis front section is provided with a self-tapping external thread capable of tapping into the thighbone and the shinbone; the outer surface of the bolt prosthesis back section is provided with an external thread continuously butted with the self-tapping external thread of the bolt prosthesis front section, and adopts a material capable of growing together with bones; and muscle tendon fixation forcing screws are arranged between the first bolt prosthesis and the artificial tendon prosthesis and between the second bolt prosthesis and the artificial tendon prosthesis. Physical fixation and biological fixation are combined to realize the reestablishment of the knee joint cruciate ligaments without establishing a bone channel penetrating through the thighbone, a knee joint cavity and the shinbone, so that operation difficulty is obviously reduced, various complications are avoided, the tensile force of the reestablished artificial ligaments can be adjusted, the operation accuracy is improved and the operation curative effect is promoted.

The invention discloses a sterile bag for puncture lavage of the knee joint cavity. The sterile bag for puncture lavage of the knee joint cavity comprises a sterile bag body, a sterile box and an isolation mechanism. The sterile box is wrapped in the sterile bag body, the isolation mechanism is positioned in the sterile box, and the box body is of a hollow structure; an upper cover is hinged to the box body and rotates along the edge of the side, close to an opening, of the box body, and a middle laminated board is connected with the box body slidably and positioned on the side, close to the opening, of the box body; a plurality of partition boards are fixedly connected with the box body and the middle laminated board separately and transversely and longitudinally staggered, and the box body and the middle laminated board are divided into a plurality of placing cavities; shaping sponges are fixedly connected with the box body and positioned on the side, close to the inner wall, of thebox body, a placing column is fixedly connected with the box body and positioned in the box body, and a disinfection sponge is fixedly connected with the placing column and positioned at the bottom ofthe placing column. Cotton swabs are placed in the placing column and used for separating, isolating and classifying medical instruments, correspondingly medical personnel can conveniently find and take the medical instruments, unnecessary waste of treatment time is reduced, and treatment pain of patients is reduced.

The invention discloses a stem cell preparation for treating canine arthritis and a preparation method thereof. The stem cell preparation comprises canine mesenchymal stem cells, canine serum albumin, hyaluronic acid and pharmaceutical salts. Injections of the mesenchymal stem cells are skillfully used, a knee joint cavity is positioned through B-mode ultrasound, the cells are injected into the knee joint cavity of an affected limb more accurately, and a traditional treatment method for the canine arthritis is broken. The stem cell preparation is high in stability, good in therapeutic effect, safe in using, suitable for being preserved and transported for a long time and free of toxic and side effects, and lays the foundation for being used clinically on a large scale.

A Chinese medicine in the form of polylactic acid microballs for treating osteoarthritis features that its active components are contained in each microball for slow releasing and selective absorption.

The invention discloses a drill bit guider for high tibial osteotomy. The drill bit guider comprises positioning rods, a positioning block, sliding rods, sliding rod locking bolts, a drill module anda universal adjustment mechanism, the quantity of the positioning rods is two, the front ends of the positioning rods are inserted into the knee joint cavity of a patient, and the middle portions or the rear ends of the positioning rods are fixedly connected with the positioning block; the sliding rods are inserted into through holes at the positioning block, and the sliding rod locking bolts arescrewed into threaded holes at the positioning block, and prop against the sliding rods; and the drill module is close to a position, needing spacer implantation, of the proximal tibia of the patient,and is connected with the sliding rods through the universal adjustment mechanism, and the drill module is provided with a row of drill bit guiding holes corresponding to the tibia of patient. The position and the angle of tibia drilling are adjusted by the sidling rods and the universal adjustment mechanism by using a tibial platform as a positioning reference, so the drilling difficulty is greatly reduced, thereby the drilling accuracy in high tibial osteotomy is ensured, the smooth implantation of the spacer is guaranteed, the operation efficiency is effectively improved.

The invention discloses application of a mesenchymal stem cell and PRP (platelet-rich plasma) combined in preparation of a medicine for treating knee joint cartilage injury and osteoarthritis, the mesenchymal stem cell and the platelet-rich plasma are combined for treating the knee joint cartilage injury and the osteoarthritis, and the platelet-rich plasma can relieve the knee joint injury symptom and also can be used for treating the knee joint cartilage injury and the osteoarthritis. The cartilage differentiation of the mesenchymal stem cells in the knee joint cavity can be promoted, so that the cell repair and regeneration of the knee joint cartilage injury can be realized, the symptom of a patient can be greatly reduced, and the patient can recover more easily.

The invention discloses a knee-joint cavity implant for treating popliteal cyst. The knee-joint cavity implant comprises a knee-joint cavity sealing sheet (12) and a stop sheet (16), wherein a through hole (14) is opened in the knee-joint cavity sealing sheet (12); the peripheral area of the stop sheet (16) is fixed on the knee-joint cavity sealing sheet (12), thus the stop sheet (16) is capable of shielding the through hole (14); moreover, a flow through hole (162) is opened in the junction of the peripheral area of the stop sheet (16) and the knee-joint cavity sealing sheet (12), thus the stop sheet (16) and the knee-joint cavity sealing sheet (12) are capable of forming a flow cavity (20). The knee-joint cavity implant above is capable of effectively improving the treatment effect on popliteal cyst.

The invention discloses a sitting fumigation medicine lumbar vertebra healing formula, which is used for treating various lumbar vertebra clinical symptoms and mainly comprises the following components: 20g-40g of flos carthami, 40g-60g of herba lycopodii, 40g-60g of caulis et folium gaultheriae yunnanensis, 20g-40g of rhizome chuanxiong, 40g-60g of ramulus cinnamomi, 40g-60g of cortex Erythrinae, 20g-30g of radix saposhnikoviae and 40g- 60g of radix glycyrrhizae. According to the invention, the formula and the corresponding use method of the formula can alleviate or solve pain of lumbar vertebra and cervical vertebra, alleviate or solve hand numbness caused by the pain of the lumbar vertebra, and meanwhile, eliminate a large amount of hydrops in a knee joint cavity, and the medicinal materials are ground into powder by adopting a pure copper grinder, so that the combination property between the medicines can be improved, the efficacy of various traditional Chinese medicines are exerted to the greatest extent, and the flatness of the traditional Chinese medicines put in an inner bag is improved, so that a patient cannot feel uncomfortable when lying; meanwhile, the manual grinder cannot cause any environmental pollution; and the traditional Chinese medicine composition prepared by the invention has a remarkable curative effect.