37 results about "Navicular bone" patented technology

A device, method, and system for treatment or fixation of a fractured, damaged, or deteriorating bone or bones in a mid-foot region. The device comprising an implant with both proximal and distal fastener holes, along with fastener slots in a central elongated body, for securing the implant to the appropriate osseous cortical structures of the foot. The method for treatment or fixation of fractured, damaged, or deteriorating bones in the medial column of the foot with use of a device such as an intramedullary nail that attaches to either the talus or first metatarsal bones to secure the medial cuneiform and navicular bones in place.

A device for fixation of the navicular bone of the foot includes a truss plate defining a plurality of holes for receive bone screws therethrough. The holes are staggered along the length and width of the plate to minimize the overall width of the plate and to ensure that bone screws passing through all holes do not conflict within the bone. The plate includes a medial section configured for attachment to the medial aspect of the navicular and a dorsal section that is curved into a hook shape for attachment to the dorsal aspect of the bone. The hook shape helps retain and reduce the bone fragments of a fractured navicular. The plate further defines a plurality of cut-outs between struts supporting the screw hole locations, wherein the cut-outs are configured to receive bone fasteners therethrough.

A shoe has a sole including a platform for supporting a wearer's foot upon a surface. The shoe includes a heel pedestal extending from the platform beneath a wearer's heel, a lateral stabilizer pedestal extending from the platform at least partially beneath a wearer's cuboid bone, and a medial stabilizer pedestal extending from the platform at least partially beneath a wearer's navicular bone. The heel pedestal, the lateral stabilizer pedestal, and the medial stabilizer pedestal include an outsole for contacting the surface, a compressible middle layer between the outsole and the wearer's foot, and a base layer between the middle layer and the wearer's foot having a compressibility that is lower than the compressibility of the middle layer.

The second transverse groove, provided in an area between the Chopart's joint and the Lisfranc joint, including the navicular bone where the arch of the foot is highest, is deeper than the first transverse groove, and is equal to or deeper than the third transverse groove. Therefore, the rest of the midsole is thin and it becomes easier for the shoe sole to flex, thereby facilitating the upward displacement of the area where the arch is highest. Thus, it is possible to suppress the lowering of the arch even if an exercise is continued over a long time. On the other hand, a flexion area including at least one third transverse groove is provided directly below the talus, and has a larger width than other transverse grooves. This makes it easier for the rear foot portion directly below the talus to flex, thereby facilitating the upward displacement of the area of the arch.

The invention discloses a human body identity recognition system which comprises a pressure measurement device, a signal conditioning circuit, an analog/digital (A/D) converter, a microprocessor, a wireless transmission module, a wireless receiving module and an upper computer which are electrically connected in sequence. The system is characterized in that the pressure measurement device is a sock-type foot pressure measurement device which mainly comprises a sensor array mainly composed of 19 miniature pressure sensors; the miniature pressure sensor array is placed at the bottom of the sock-type foot pressure measurement device, and is distributed according to corresponding positions as follows: the first toe to the fifth toe are respectively provided with one miniature pressure sensor; the far ends of first, second, third, fourth and fifth metatarsal bones are respectively provided with miniature pressure sensor; the near ends of first, second, third, fourth and fifth metatarsal bones are respectively provided with one miniature pressure sensor; cuneiform bone, the middle part of navicular bone and the tail end of the navicular bone are respectively provided with one miniature pressure sensor; and four miniature pressure sensors are distributed at calcaneus.

The invention relates to an insole with customized balance keeping gaskets, and the insole is needed by normal walks. The insole with the customized balance keeping gaskets comprises an insole body, an inner side metatarsal bones gasket, an inner side vertical arch gasket and an inner side foot root gasket, wherein the inner side metatarsal bones gasket is located in the front end part of the lower portion of the insole body and sticks to parts of a first metatarsal bone to a third metatarsal bone correspondingly and is formed by a quadrangle of oblique lines formed by the inner side face, the thickness of the inner side face is thick and gradually becomes thin towards outer side face, the inner side vertical arch gasket is located in the middle part of the lower portion of the insole body and sticks to the inner side vertical arch part correspondingly and consists of a streamline semi-circle, the thickness of a shoe inner side lower portion line corresponding part corresponding to parts of from a root bone of a foot to an astragalus, a tarsal navicular bone, a cuneiform bone, the first metatarsal bone to the third metatarsal bone through a load distance protrusion is thick and gradually becomes thin towards the outer side face, the inner side foot toot gasket sticks to the foot root inner side of the lower portion of the insole body and is in equal a quarter of the oval, the inner side face is a curve part of the oval, the thickness is thick and gradually becomes thin towards the outer side face.

The present invention provides a pad capable of effectively curbing fall of a plantar arch. A pad in accordance with the present embodiment, for supporting the plantar arch of a sole of a foot, is provided in a supporter, made of a stretch cloth, including a plantar part and an instep part, which is connected to the plantar part. The pad is located in the plantar part and has an apex, which is provided at a position corresponding to an area in the sole of the foot which area corresponds to the navicular bone of the foot.

The invention relates to an operation guide plate and method for wrist fracture percutaneous fixation. The operation guide plate comprises a palm side plate and a back side plate, the side face of the palm side plate is provided with a palm wrist fixing groove matched with the palm side face of the wrist of a human body, the side face of the back side plate is provided with a back wrist fixing groove matched with the palm back side face of the wrist of the human body, a wrist fixing groove is formed after the palm wrist fixing groove and the back wrist fixing groove are spliced, the wrist fixing groove is matched with the wrist of the human body, the palm side plate is provided with a guide tube, steel needles are contained inside a tube hole of the guide tube, and the extending direction of the tube hole is in accordance with the longitudinal axis direction of a navicular bone of the wrist of the human body. The using method comprises the following steps that the palm side face of the wrist is placed in the palm wrist fixing groove; the back side plate and the palm side plate are correspondingly spliced; the steel needles are inserted into the guide tube, and the navicular bone is punctured through the steel needles. According to the operation guide plate and method for wrist fracture percutaneous fixation, the introducing process of steel needle puncture is simplified, the puncture positions of the steel needles are accurately positioned, the success rate of one-time needle puncturing is increased, damage to sclerotin is reduced, the operation time is shortened, and pain of a patient is relieved.

A talonavicular joint prosthesis (1) adapted to replace the natural talonavicular joint that exists between a patient's talus and navicular bones, after appropriate surgical preparation of the joint-related portions of these bones so as to create a new joint space to accommodate this prosthesis, includes talar (2) and navicular (4) components. Each of these have inner (8, 28) and outer (6, 26) surfaces whose average separate distance is defined as the component's average thickness. These components inner (8, 28) surfaces are configured to: (a) generally follow the anatomic contour of the original joint surface to which each component is to be attached, and (b) minimize each component's average thickness, consistent with providing sufficient strength and rigidity for the components, so as to require minimum bone resection in the creation of the new prosthesis-accommodating, joint space.

The invention relates to a metacarpophalangeal joint stiffness drafting device. The problem that an existing support cannot effectively control the direction of force, and consequently treatment needs cannot be met is mainly solved. The device comprises a palmaris supporting clamping plate, a binding part, a finger traction assembly and a tension guide part, the finger traction assembly comprises a finger sleeve, a traction line and a clamping part, the tension guide part is an adjusting plate, the adjusting plate is fixed to the palmaris supporting clamping plate and extends downwards, guide holes sequentially distributed in the extending direction of the adjusting plate are formed in the adjusting plate, and one guide hole corresponds to one force direction. The finger sleeve is used for being arranged on the finger in a sleeving mode, one end of the traction line is connected with the finger sleeve, the other end of the traction line penetrates through the corresponding guide hole to be connected with the clamping part, and the clamping part is fixed to the adjusting plate in a clamped mode. According to the metacarpophalangeal joint stiffness drafting device, the direction of force can be effectively controlled to meet treatment needs, the direction of drafting force of all metacarpophalangeal joints is perpendicular to the proximal phalanx and points to the navicular bone, the aim of treatment is effectively achieved, and the advantages of being simple in manufacturing process, low in treatment cost and good in treatment effect are achieved.

The invention discloses a 3D positioning device for a carpal navicular percutaneous screw setting technology and a manufacturing method thereof. The 3D positioning device comprises a panel, a bottom plate and a needle guide port which are formed by 3D printing, wherein the panel is provided with a first mold cavity adaptive to facies palmaris dermatoglyph of the wrist, and the bottom plate is provided with a second mold cavity adaptive to the back face of the wrist; the panel is movably connected with the bottom plate, and the first mold cavity corresponds to the second mold cavity vertically;the needle guide port is formed in the panel and provided with a needle guide passage communicated with the first mold cavity, and the needle guide passage is constructed to guide a guide needle to run from tubercula ossis navicularis to the navicular proximal pole. According to the provided positioning device for the carpal navicular percutaneous screw setting technology, the guide needle and ascrew can be accurately embedded into the navicular bone auxiliarily. By applying the positioning device to set the screw to fix carpal navicular fracture, the positioning device has the advantages ofbeing minimally invasive and precise, shortening the operation time, reducing radiation damage caused by repeated fluoroscopy or radiography and the like.

The invention discloses an intelligent osteoarthrosis correcting device which comprises a buffer layer and a sample corrector on a shell layer. The shell layer can be constructed into a first metatarsus joint capable of extending from at least one navicular bone joint of the metatarsus to the middle cuneiform bone in the longitudinal direction in the using process, and the first metatarsus joint is at least transversely located below the middle cuneiform. The shell layer can be constructed into detachable inserting pieces capable of receiving and changing arch supporting strength provided by the corrector. One group of the inserting pieces can be provided, so that the sample corrector is customized according to the supporting favor of a user.

The invention discloses a wrist part scaphoid bone replacement prosthesis, which is characterized by comprising a replacement part scaphoid bone, a residual healthy scaphoid bone, an anti-rotation forcing screw and a transplantation prosthesis, the replacement part navicular bone is a part of the carpal navicular bone, the transplantation prosthesis is fixedly connected with the residual healthy navicular bone, one end of the anti-rotation forcing screw is fixedly connected to the transplantation prosthesis, and the other end of the anti-rotation forcing screw is fixedly connected to the residual healthy navicular bone; according to the prosthesis, a three-dimensional scaphoid model of a patient is constructed through three-dimensional CT scanning of the scaphoid of the carpal bone at the intact position of the patient, and a three-dimensional model of a scaphoid replacement part is obtained by mirroring the three-dimensional model. Therefore, the scaphoid fracture healing process is directly simplified, the conditions of slow healing, non-healing and ischemic death of the two scaphoids after scaphoid fracture are avoided, the scaphoid fracture rehabilitation speed of the carpal bone is increased, the inconvenience of wrist movement caused by scaphoid fracture healing disorder in the later period is avoided, the later-period hidden danger is eliminated, and the postoperative rehabilitation quality of a patient is guaranteed.

The present invention provides a method and device for treating scaphoid fracture in the medical technology field, comprising the following steps: fixing the wrist joint in dorsiflexion position with a wrist fixation seat, determining trapezoid-scaphoid tubercle and marking ; Connect the sterilized auxiliary treatment device to the wrist fixation seat; make a 1cm transverse incision at the skin mark, separate the subcutaneous tissue until the scaphoid joint space; The guide sleeve pierces the surface of the distal pole of the scaphoid to lock the device; adjust the angle of the guide sleeve; use fluoroscopy to determine the direction of the sleeve, and confirm that the guide pin is inserted correctly; drive the anti-rotation Kirschner wire along the guide pin, remove Auxiliary treatment device; drill the guide pin into the distal end of the radius, and use a hollow drill to drill through the guide pin; double-ended compression screws pass through the guide pin and screw into the scaphoid; confirm the screw position again by fluoroscopy, and pull out the anti-rotation Kirschner wire , stop bleeding and suture the wound; the invention ensures accurate needle insertion and reduces the number of times of needle insertion and perspective.

The invention relates to the field of medical apparatuses, in particular to a flat valgus correcting force measuring instrument. The flat valgus correcting force measuring instrument comprises an outer frame. The outer frame is composed of a left supporting frame body, a right supporting frame body and a middle partition plate. The middle partition plate is arranged in the middle of the left supporting frame body and the middle of the right supporting frame body. A force measuring table is arranged on the left supporting frame body. Two opposite cameras are arranged on the two sides of the surface of the force measuring table. A pressure sensor is arranged at the bottom of the force measuring table. A right platform is arranged on the right supporting frame body. A strip-shaped groove through hole is formed in the middle of the middle partition plate. A linear pushing rod is arranged at the bottom of the outer frame. One end of the linear pushing rod penetrates through the strip-shaped groove through hole to be movably connected with a linear displacement sensor. An angle sensor is connected to one side of the linear displacement sensor. The flat valgus correcting force measuring instrument has the advantages of being simple in structure, rapid and convenient to use, and capable of rapidly measuring the magnitude and the direction of correcting force, the displacement of the navicular bone and the deflection angle of the heel axis in the correcting dynamic condition of the whole foot.

The invention relates to the technical field of medical instruments, in particular to a fusion board for talonavicular and naviculocuneiform joints. The fusion board comprises a fusion board near end, a fusion board middle end, a fusion board far end, a fusion board body I and a fusion board body II which are integrally formed, wherein a plurality of fixing hole for fixing the fusion board to talus, a navicular bone and a cuneiform bone are formed in the fusion board, the fusion board is provided with a bone setting surface, the bone setting surface at the fusion board near end is matched with the surface form of the talus, the bone setting surface at the fusion board middle end is matched with the surface form of the navicular bone, and the bone setting surface at the fusion board far end is matched with the surface form of the cuneiform bone. The fusion board adopts anatomic design, solves the problem of high probability of fusion loosening and fixing failure caused by adoption of hollow nails, straddle nails and the like for fixing, and further solves the problems that fixing is not firm, anatomic reconstruction of an arch during an operation is inconvenient and the like caused by fusion board breakage and fixing hole deformation due to the fact that the fusion board is required to be bent in a common fusion board operation and forms stress concentration.

A talonavicular joint prosthesis includes a navicular component configured to be implanted in a navicular bone and including a base and a surface having an articulation recess formed therein; and a talar component configured to be implanted in a talus bone and including a bearing section configured to rest within the articulation recess. The talar component and the navicular component are shaped such that, when brought together, there is more conformity between the navicular component and the talar component in a dorsal-plantar plane than in a medial-lateral plane.