11 results about "Tarsal Bone" patented technology

The utility model discloses an expansion type subtalar joint brake which is characterized by comprising an outer nail body and an inner nail body which are matched with each other, the inner nail body is of a circular truncated cone structure, the outer nail body comprises a columnar nail head and a plurality of expansion pieces fixedly connected with the nail head, the expansion pieces are distributed along the circumference to form a cavity, and the cavity is used for containing the inner nail body. And the outer nail body is made of a polymer based on lactic acid. According to the expansion type subtalar joint brake, the inner nail body and the outer nail body are matched, the nail head of the outer nail body is implanted into a tarsal bone tube, fixation can be firmer, and tissue cannot be cut by the outer nail body.

Surgical instruments and methods of minimally invasive surgery are provided. The device may include two proximal handles each sized for a surgeon's hand, the two handles in fixed relative positions, and a distal probe attached to the handles. The probe can include a distal cutting member and contain or receive an imaging device. The system can be used for cutting anatomic members, such as ligaments, during minimally invasive surgical procedures, for example, performing endoscopic ligament release surgery, such as carpal tunnel release, plantar fasciotomy, gastrocnemius release, cubital tunnel release, and tarsal tunnel release surgery, and similar surgical procedures on anatomic members.

A core material with a three-point support structure and tarsal bone correction shape is provided under the body temperature responsive polymer layer to achieve "responsiveness to the soles of each user's feet" and "improved tarsal bone correction effect." [Solution] Insole 1 has a substantially flat core material 3 beneath a body temperature responsive polymer layer 2. The body temperature responsive polymer layer 2 softens and deforms to fit the shape of the sole of the foot due to the user's body temperature, and core material 3 has a three-point support structure 4 and a tarsal bone correction shape 5. Furthermore, core material 3 is made of nylon 6 resin, and body temperature responsive polymer layer 2 has a non-slip portion 6, body temperature responsive polymer layer 2 returns to its initial shape after use, an elastic buffer layer 7 is provided between body temperature responsive polymer layer 2 and core material 3, core material 3 has a pressure dispersion shape, core material 3 has a vibration detection structure, and insole 1 does not have to have a built-in sensor, drive circuit, or drive power source. Insole 1 may also be used in footwear.

Devices, systems, and methods for surgical treatment of mid-foot disorders such as osteoarthritis, spacing disorders, or alignment disorders, including mid-foot arthroplasty devices and systems for the 2nd and 3rd tarsometatarsal (TMT) joint, implants for post-osteotomy spacing and realignment, arthroplasty articular implants, dowel grafts for TMT arthrodesis or fusion, dowel grafts for navicular cuneiform (NC) arthrodesis, dowel grafts for intercuneiform arthrodesis, and / or locking dowels for joint fusion.

This invention discloses a shoe last assembly, including a shoe last comprising a front part and a rear part. The front and rear parts of the shoe last form a detachable connection, with the connection point between them defined at a position corresponding to the tarsal bone of the foot. The foremost point along the length direction and the two lateral ends along the width direction of the shoe last are both located at the front part. One of the rear end of the front part and the front end of the rear part of the shoe last has a boss, and the other has a recess. Both the rear end of the front part and the front end of the rear part of the shoe last have contact surfaces. A screw passes between the front and rear parts of the shoe last. This invention's shoe last assembly allows for changing the style and size of the front end of the shoe last by disassembling and replacing the front part. It features a simple connection structure, convenient disassembly and replacement, a small gap at the connection point, and a smoother shoe last surface.

The utility model discloses a hallux valgus correcting device, and belongs to the technical field of correctors. Mainly comprises a foot tarsal bone and a metatarsal bone, an inner cuneiform bone is arranged at the joint of the metatarsal bone and the foot tarsal bone, two cuneiform bone holes are formed in the surface of the cuneiform bone, an artificial ligament is arranged on the surfaces of the cuneiform bone holes, the artificial ligament penetrates through the two cuneiform bone holes, a belt carrier steel plate is arranged at the other end of the metatarsal bone, and the belt carrier steel plate is arranged at the other end of the metatarsal bone. A steel plate hole is formed in the surface of the belt carrier steel plate, the surface of the cuneiform bone hole is in threaded connection with an interface screw, an ankle protection pad is installed on the surface of the ankle, a hook-and-loop fastener is fixedly installed at the joint of the ankle protection pad, a supporting strip is fixedly installed at the lower end of the ankle protection pad, and a toe protection pad is fixedly installed at the front end of the supporting strip. A first retaining ring is fixedly installed at one end of the toe protection pad, and a second retaining ring is fixedly installed at the other end of the toe protection pad. The hallux valgus correction device achieves the purpose of fixing the sole and toes, is good in correction stability, and enables a patient to wear the hallux valgus correction device more comfortably.

An insole core material for foot support. On the upper surface of the core material, multiple tarsal support portions are formed by three-dimensional ridges that provide corrective support for the skeletal alignment of the foot, corresponding to the positions and heights of multiple tarsal bones. When the upper, lower, or both surfaces of the core material have following grooves or following ridges that follow the movement between the tarsal support portions, it can flexibly accommodate flexion, internal rotation, and external rotation movements. A protruding structure, functioning as a corrective fulcrum, can be provided at a position corresponding to the lower part of the cuboid bone. On the lower, upper, or both surfaces of the core material, one or more reinforcing grooves can be provided to adjust the balance between the overall rigidity and flexural flexibility of the core material and to distribute pressure on the sole of the foot. Optimal support height is achieved by utilizing a structure extending to the base of the metatarsals and a setting based on a mathematical formula using correction coefficients.

This invention relates to the field of medical device technology, specifically to an osteotomy surgical device, comprising a fixable guide pin, a fixing nut, an osteotomy guide plate, a slotter, an oscillating saw slot, and a retractor. In use, the fixable guide pin is first inserted through the tarsal canal, and the fixing nut is installed on the medial side of the foot. The depth of the entire tarsal canal is read using the first graduation mark on the fixable guide pin. The osteotomy guide plate is placed on the fixable guide pin, and 1.5mm Kirschner wires are inserted into the fixing holes on both sides for auxiliary fixation. Osteotomy is precisely performed with the assistance of the osteotomy guide plate. After osteotomy, the fixable guide pin and osteotomy guide plate are removed. The slotter is inserted into the osteotomy site and its bottom is tapped. The oscillating saw slot is inserted according to the length of the tarsal canal, and the oscillating saw is used. The retractor is inserted, and the handle is used to open the tarsal canal to the required angle, which is read from a graduated slide rail. This allows for precise positioning of the tarsal canal while meeting the osteotomy depth and opening angle requirements.

Devices, systems and methods for surgical treatment of mid-foot disorders such as osteoarthritis, spacing disorders, or alignment disorders, including mid-foot arthroplasty devices and systems for the 2nd and 3rd tarsometatarsal (TMT) joint, implants for post-osteotomy spacing and realignment, arthroplasty articular implants, dowel grafts for TMT arthrodesis or fusion, dowel grafts for navicular cuneiform (NC) arthrodesis, dowel grafts for intercuneiform arthrodesis, and / or locking dowels for joint fusion.

The invention provides a bionic frog leg structure based on a multi-connecting-rod mechanism, and belongs to the field of bionic frog leg structures, the bionic frog leg structure comprises two groups of bilaterally symmetrical multi-connecting-rod rear leg mechanisms, each multi-connecting-rod rear leg mechanism comprises a driving connecting rod R1, a frame connecting rod R2, a thighbone-imitating connecting rod R3, a connecting rod R4, a connecting rod R5, a tibiofibula-imitating connecting rod R6, a connecting rod R7, a connecting rod R8, a tarsal bone-imitating connecting rod R9, a connecting rod r6 and a connecting rod r9, one end of the driving connecting rod R1 is rotationally connected to the driving end, the other end of the driving connecting rod R1 is connected to one end of the frame connecting rod R2, the other end of the frame connecting rod R2 is rotationally connected with one end of the thighbone-imitating connecting rod R3, the other end of the thighbone-imitating connecting rod R3 simulates a hip joint, one end of the tibiofibula-imitating connecting rod R6 is rotationally connected to one end of the thighbone-imitating connecting rod R3, and the other end of the tibiofibula-imitating connecting rod R6 is rotationally connected to the other end of the one end of the humanoid tarsal bone connecting rod R9 is rotationally connected with the other end of the humanoid tibiofibula connecting rod R6; the structure is simple, and miniaturization and light weight are achieved.

The utility model relates to the technical field of animal experiment auxiliary devices, solves the problem that in the prior art, the animal fixing mode is low in efficiency, and discloses a rat intramuscular injection auxiliary device which comprises a bottom plate, a plurality of fixing assemblies and a plurality of tarsal bone fixing parts. The fixing assembly comprises a base and two fixing frames. The fixing frame is arc-shaped; one end of each fixing frame is connected with one side of the base, and the other end of each fixing frame extends away from the base; a fixing space for wrapping the trunk of the rat is formed between the two fixing frames; the plurality of bases are arranged on the bottom plate at intervals; one fixing assembly and two tarsal bone fixing parts form one group; in each group, the tarsal bone fixing pieces are arranged on the bottom plate at intervals. Through combined use of the multiple fixing assemblies and the tarsal bone fixing part, stable fixing of multiple rats is achieved.