10 results about "Calcanean tendon" patented technology

The invention provides an electrically-driven chassis bionic angle module structure imitating cirific muscles and ostrich achilles tendon, which is applied to the technical field of angle module structure design, and a suspension structure comprises an active adjusting mechanism, a force transmission guide mechanism, a damping hydraulic rod, an arc-shaped spring and a detection mechanism; the active adjusting mechanism drives an adjusting lever through a servo motor to change the posture of the suspension structure and adjust the pre-tightening force of an adjusting spring. The force transmission guiding mechanism is composed of a multi-connecting-rod structure, transmits impact loads generated by wheels to a vehicle body and guides the motion trails of the wheels. The arc-shaped spring generates elastic deformation in the movement process of the suspension structure so as to store impact energy; the damping hydraulic rod provides damping energy consumption for the movement of the suspension structure; the detection mechanism is used for detecting the stress change of the suspension structure and providing feedback for active adjustment. Through the synergistic effect of multi-connecting-rod guiding, arc-shaped spring energy storage and hydraulic damping, graded absorption and stable transmission of wheel impact loads are achieved, and therefore the vehicle running stability and the suspension structure response performance are improved.

The utility model relates to an achilles tendon suturing device which comprises a supporting assembly, a clamping assembly and an adjusting assembly, the supporting assembly comprises a first supporting piece and a second supporting piece, the clamping assembly comprises a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are located between the first supporting piece and the second supporting piece; the adjusting assembly comprises a first adjusting piece and a second adjusting piece, a fixing mechanism is arranged between the first supporting piece and the second supporting piece, the first adjusting piece and the second adjusting piece are located at the two ends of the fixing mechanism respectively, and the first adjusting piece can drive the first supporting piece and the second supporting piece to move relatively in the axial direction of the fixing mechanism. The second adjusting part can drive the first clamping part and the second clamping part to relatively move in the axial direction of the fixing mechanism, by means of the technical scheme, the achilles tendon and the achilles tendon external structure can be fixed, and therefore the achilles tendon fracture suturing efficiency can be improved, the recovery time of a patient can be shortened, and surgical incisions can be reduced.

The utility model discloses an achilles tendon suturing puncture guide structure based on laser positioning, and particularly relates to the technical field of achilles tendon suturing, which comprises a puncture tube, a micro laser is arranged at the front end in the puncture tube, and the micro laser is detachably connected with the puncture tube. According to the utility model, the movement point of the puncture tube is irradiated by the micro laser and can penetrate through the other puncture hole in the oval forceps, so that the movement point of the positioning puncture outfit can be visually known from the outside, the positioning puncture outfit can accurately penetrate through the achilles tendon, and the situation that the positioning puncture outfit is inclined and other tissues at the achilles tendon are damaged is avoided; damage is reduced, and puncture efficiency is improved.

The heel cup comprises a supporting part and a bending part which are integrally arranged, the supporting part corresponds to the position of the calcaneus of the human body, the bending part is arranged on the upper portion of the supporting part, the upper end of the bending part extends towards the direction of the achilles tendon of the human body in the vertical direction, and the bending part is arranged on the upper portion of the supporting part. The upper end of the bent part extends in the transverse direction in the direction away from the heel of the human body so as to form an inclined face facilitating wearing and taking-off, and the hardness of the bent part is smaller than that of the supporting part. The shoe is more convenient to put on and take off, meanwhile, the wearing comfort of the heel part can be greatly improved, the heel part is not prone to deformation or damage due to repeated treading, and the service life of the shoe is prolonged.

The invention relates to the field of low-immunogenicity medical collagen. A preparation method of the low-immunogenicity collagen comprises the following steps: raw material pretreatment, enzyme treatment, inactivation treatment, separation and purification, and drying. The raw material is one of fresh pigskin, cow leather and bovine achilles tendon; the inactivation treatment refers to treatment with the pH value being 7 or below; the drying is low-temperature drying. The collagen provided by the invention has high purity which is greater than 99%, and has low immunogenicity.

This invention relates to the field of medical materials technology, and more particularly to an inner and outer layer filling material for a composite artificial tissue microparticle scaffold and its preparation method. The method includes: first, modifying bovine Achilles tendon type I collagen and chondroitin sulfate with thiolation, then mixing and reacting them with corresponding components to granulate, thus obtaining an inner layer of injectable microparticle gel; then preparing boric acid-modified ε-polylysine, separately preparing a dense moisturizing gel membrane and a gradient porous drainage sponge, bonding the two together at the interface, and drying to obtain the final product. This invention, through the dual cross-linking structure design of the inner layer of injectable microparticle gel and the synergistic construction with the outer double-layer membrane, significantly improves the mechanical strength, degradation rate, matching with new tissue growth, and biocompatibility of the composite material.

The utility model discloses a fixing device for achilles tendon suturing, which relates to the technical field of achilles tendon suturing and comprises a first sliding rail, an arc-shaped support is fixedly connected to the side wall of the first sliding rail, a second sliding rail is fixedly connected to one end of the arc-shaped support, and two lower-layer steel plates are arranged at the upper end of the first sliding rail. Connecting plates are fixedly connected to the two ends of the lower surface of the lower-layer steel plate, fixing assemblies are arranged in the connecting plates, lower teeth are arranged at the upper end of the lower-layer steel plate, a first mounting groove is formed in one end of the upper surface of the lower-layer steel plate, and two second mounting grooves are formed in the inner side wall of the first mounting groove. The clamping connection between the clamping columns and the clamping grooves is removed, after the steel plate moves to the needed position, the clamping columns are directly loosened, the limiting between the lower-layer steel plate and the two sliding rails can be rapidly completed, then the lower-layer steel plate and the upper-layer steel plate are directly connected, the upper-layer steel plate is directly pressed downwards, the clamping blocks are connected with the second mounting grooves in a clamping mode, and the operation efficiency is improved.

1. The name of the design product: Achilles tendon stretcher. 2. The use of the design product: for stretching Achilles tendon. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The left view is shown in other views; the top view is shown in other views.

The present application belongs to the field of material chemistry and biology technology, and particularly relates to a composite film and a preparation method and application thereof. The HOFilms material of the present application uses a mild and simple preparation method to prepare a high-quality, uniformly distributed hydrogen-bonded organic framework film, effectively retaining the biological function of the material; the production process is simple, raw materials are easy to obtain, and the material can be produced in large scale in a factory; the material can be used as a physical barrier or a support to regulate the repair microenvironment at the molecular level, and further form an integrated active Achilles tendon regeneration platform from mechanical support to biological treatment; the HOFilms material has a "wet response" intelligent property: not only can it stably exist in a wet environment in vivo, but also can utilize or respond to moisture in the environment (such as swelling, shrinking, releasing factors) to perform specific functions, thereby interacting with dynamic physiological processes; the HOFilms material itself has an active biological function, that is, improving the inflammatory microenvironment and directly promoting the regeneration of tendon cells, thereby fundamentally overcoming the healing barrier.

The application discloses a medical collagen extraction method and belongs to the technical field of biomedical materials. The extraction steps are as follows: after removing surface foreign matters from a bovine Achilles tendon, the bovine Achilles tendon is cut into particles, washed by a NaCl solution and soaked by a Tris-HCl buffer solution containing EDTA-Na2; the pretreated bovine Achilles tendon tissue is added into a swelling treatment liquid prepared by taking lactic acid and betaine as raw materials to perform soaking, so that swelled bovine Achilles tendon tissue is obtained; the swelled bovine Achilles tendon tissue is subjected to enzymolysis by pepsin, so that a crude collagen extraction liquid is obtained; poly(N-isopropyl acrylamide) is added into the crude collagen extraction liquid to precipitate a collagen-containing precipitate; after resuspension of the precipitate, constant-volume ultrafiltration diafiltration purification is performed, so that a collagen concentrate liquid is obtained, and the medical collagen extraction is completed. The product has the characteristics of high purity, structural integrity and low endotoxin, meets medical-grade safety standards and is suitable for large-scale popularization and use.