92results about "Skull" patented technology

The present disclosure is directed to an expandable medical implant for the repair of cranium defects in adolescent patients. The implants of the present disclosure can include a plurality of interconnected links that are movable with respect to each other as the underlying cranium grows and expands.

A method for providing a bending mold for an off-the-shelf implant, the method comprising obtaining information about a bony anatomy of a patient from one or more medical images; developing a virtual three-dimensional model of the bony anatomy based on the information about the bony anatomy, selecting an off-the-shelf implant, simulating a bending of the off-the-shelf implant using a three-dimensional model of the selected off-the-shelf implant and the virtual three-dimensional model of the bony anatomy to obtain a virtually bent implant having a first, bone-facing, surface and a second surface opposite the first surface, using the virtually bent implant, designing a bending mold mating with the first or the second surface, and based on the design of the bending mold, manufacturing the bending mold using additive manufacturing.

The invention discloses a floating bone flap and skull connecting device which comprises a fastening screw, a connecting piece and a plurality of traction lines, a first through hole is formed in the middle of the connecting piece, the fastening screw is sleeved with the connecting piece through the first through hole, and the fastening screw is locked in the middle of the upper end face of a floating bone flap. The connecting piece is located between the head of the fastening screw and the upper end face of the floating bone flap, a slipknot is arranged at one end of each traction line, and a second through hole is formed in each slipknot; a plurality of third through holes are formed in the edge of the floating bone flap at intervals, and a plurality of fourth through holes are correspondingly formed in the edge of the skull window; the other end of each traction line penetrates through the corresponding third through hole, the corresponding fourth through hole and the second through hole of the slipknot at one end of the traction line and then is connected to the connecting piece. After the skull flap is connected with the skull, tension and flexibility are good, the skull flap floats upwards sufficiently, and intracranial pressure reduction of a patient can be sufficient and thorough; and after the intracranial edema period, secondary fixation of the floating bone flap is facilitated, and the bone flap is prevented from sinking.

A universal low-profile intercranial assembly includes a mounting plate and a low profile intercranial device composed of a static cranial implant and an interdigitating functional neurosurgical implant. The low profile intercranial device is shaped and dimensioned for mounted to the mounting plate.

The invention relates to the technical field of computer-aided skull repair prosthesis design and manufacturing, in particular to a computer-aided skull repair prosthesis design and manufacturing system. Comprising a form prediction unit used for solving an optimal form coefficient and generating an initial prosthesis form; the constraint evaluation unit is used for calculating to obtain a prosthesis conflict index and dividing conflict grades; the correction field generation unit is used for deconstructing a physical violation amount in response to the prosthesis conflict index, and solving and generating a dense displacement field covering all vertexes of the prosthesis through a form correction propagation model; and the closed-loop optimization unit is used for performing geometric deformation on the initial prosthesis form by applying the dense displacement field to obtain a corrected prosthesis form, and re-submitting the corrected prosthesis form to the constraint evaluation unit to execute a grading final edition strategy. According to the method, the contradiction between anatomical fidelity and clinical safety constraint in skull repair is solved by constructing a system comprising morphological prediction, constraint evaluation, correction generation and closed-loop optimization.

A low-profile intercranial device including a low-profile static cranial implant and a functional neurosurgical implant. The low-profile static cranial implant and the functional neurosurgical implant are virtually designed and interdigitated prior to physical assembly of the low-profile intercranial device.

A bone implant (10) for encapsulating bone material (12) is provided. The bone implant includes a cover (18), which may be a biodegradable mesh. The cover is configured to be wound to a certain diameter to at least partially encapsulate the bone material within the cover. In some embodiments, the cover includes a body portion (80) and a closure portion (82) adjacent to the body portion. The closure portion is configured to hold the cover in its wound configuration to a predetermined diameter to at least partially encapsulate the bone material. A kit and method of using the bone implant are also provided.

A bone part is repaired by a process. A first implant is attached to a first bone part. The first implant corresponds to an intraoperatively defined or an intraoperatively selected cutting path. A preoperatively defined second implant is attached to the first implant. The first implant and the second implant together augment the first bone part.

To provide a method of designing a craniomaxillofacial implant that is a rigid plate of substantially uniform thickness, and a patient-specific craniomaxillofacial implant obtained by the method.SOLUTION: The method includes: positioning a surface element of a plate as a departure from a reference location within a base outline, the departure being represented by a fraction of the length of a normal path projected from the reference location to a predetermined soft tissue layer at a supported location within an anatomic region of interest, and the fraction being based upon a required patient-specific support at the supported location. The patient-specific craniomaxillofacial implant is formed into a warped rigid plate of substantially uniform thickness.SELECTED DRAWING: Figure 1

Graft for a bone defect, in particular a tibial head graft for a knee-joint endoprosthesis. It comprises a sleeve-like inner body (2) for implantation at one end of a long bone (99). An outer face of the inner body (2) is designed as a bone contact face (20) for bearing on the surrounding bone margin (97). According to the invention, an outer shell piece (3) is provided which, as a bone replacement piece, is doubled onto the outside of the inner body (2) for filling a defect at the cortical bone margin (97) and is not dimensioned peripherally, such that, in the circumferential direction, it covers only a part of the outer circumference of the inner body (2). The doubled outer shell piece (3) forms a filler piece for a bone defect (bone window 96) at the bone end. Closure of the bone window (96) is achieved, and unwanted contact between the graft and surrounding soft-tissue parts is avoided. Moreover, the graft is thus also supported in the region of the bone window (96). Parts of the bone margin (97) that are still present can thus remain intact, allowing the greatest possible preservation of naturally present bone substance.

The present disclosure provides a bioresorbable foam closure device for trans-nasally closing an opening in a base of a skull. The closure device comprises a phase-separated polymer. The device includes a stem portion having a proximal end and a distal end, and a head portion at the distal end of the stem portion. The closure device is deformed from a free shape to a constricted shape, inserted through a nasal cavity and into the opening, and released to at least partially revert back to the free shape such that the stem portion fills the opening and the head portion abuts cranium and dura to secure the closure device in position and seal the opening.

The present invention relates to a medical device manufactured using a layered manufacturing method (3D printing). This medical device comprises a porous structure based on bioceramics based on β-tricalcium phosphate (β-TCP) or hydroxyapatite and is preferably used as a bone graft. Its composition may or may not include nanostructures, for example, carbon nanostructures (graphene, graphene oxide, reduced graphene oxide, carbon nanotubes, etc.), and in a preferred embodiment, stem cells and a polymer membrane. The present invention also relates to the use of this device as a bone graft and the manufacturing process of this device.

Provided is a tibial augment block, including an insert. The insert is arc-shaped, a convex side of the insert is provided with a connecting plate for being connected to an outer wall of tibia, a connecting hole facing the tibia is formed in the connecting plate, a certain included angle is formed between an axis of the connecting hole and each of upper and lower end surfaces of a tibial osteotomy area, and a connector for connecting the tibia is arranged in the connecting hole. The connecting hole is provided to make the connector form a certain angle with each of the upper and lower end surfaces of the osteotomy area.

An extension-assisted hinged knee replacement comprises a femoral component, a tibial component, and a torque actuator operably interfacing the two components. The torque actuator is configured to apply extension torque based on the flexion angle of the knee, with the torque peaking between 0° and 90° of flexion. The implant may include a passive biasing element, which can be compressed or tensioned to enhance torque application, particularly during critical phases of knee extension.

Systems and methods are disclosed to manufacture a custom repair or replacement part at the location in which the repair / replacement will be performed. Scans are performed to determine a wear pattern and topology of the location where the replacement part is to be placed and manufacturing instructions are generated to manufacture the repair part using localized manufacturing techniques according to customized parameters to meet functional requirements of the repair / replacement.

The present disclosure provides a meniscal allograft transplantation system and methods of use.

A system (201) includes a first implant (210) and a second implant (240), both configured to be placed within an orbit of a mammal. The first implant includes a first alignment edge (216) forming a portion of an outer perimeter of the first implant, having a length extending from a first portion of the first implant configured to be placed on an inner portion of the orbit to a second portion of the first implant configured to be placed on an outer portion of the orbit. The second implant includes a second alignment edge (246) forming a portion of an outer perimeter of the second implant, having a length extending from a first portion of the second implant configured to be placed on an inner portion of the orbit to a second portion of the second implant configured to be placed on an outer portion of the orbit. Further, the first alignment edge and the second alignment edge are aligned along a majority of the length of the respective alignment edges.

The invention relates to an implant (I) for the treatment of a bone defect over a surface, in particular a bone defect in the region of the thorax or cranium, comprising a lattice structure (GS) with a top surface (OS) and a bottom surface (US) facing away from the top surface (OS), on which the implant (I) is to be attached to the bone. The lattice structure (GS) has at least one first support section (TA1) made of a first biocompatible material. Furthermore, in addition to the at least one first support section (TA1), the lattice structure (GS) has at least one second support section (TA2), each of which has a lower stiffness compared to the at least one first support section (TA1) in that the at least one second support section (TA2) is made of a second biocompatible material that has a lower material stiffness than the first material.

Systems and methods for additive-manufactured biocompatible implants. Many embodiments are directed to 30-printed biocompatible resins for fabricating custom implants. In several embodiments, the biocompatible resin is based on a ratio of biocompatible polymers. The biocompatible resin, in accordance with various embodiments, incorporates an antibacterial and / or antimicrobial agent, In some embodiments, the biocompatible resin incorporates a bioceramic to mimic native tissue.

Systems and methods for additive-manufactured biocompatible implants. Many embodiments are directed to 30-printed biocompatible resins for fabricating custom implants. In several embodiments, the biocompatible resin is based on a ratio of biocompatible polymers. The biocompatible resin, in accordance with various embodiments, incorporates an antibacterial and / or antimicrobial agent, In some embodiments, the biocompatible resin incorporates a bioceramic to mimic native tissue.

The application discloses a porous structure skull prosthesis manufacturing method based on 3D printing and injection molding technology, relates to the technical field of skull defect repair prosthesis in neurosurgery, and comprises the following steps: performing three-dimensional reconstruction according to skull imaging data to obtain a skull three-dimensional model; manufacturing a male mold (also referred to as a convex mold) mold, a female mold (also referred to as a concave mold) mold and a porous sand structure according to the skull three-dimensional model; assembling the male mold mold, the female mold mold and the porous sand structure to be injection molded into a skull prosthesis model; and cooling, solidifying and sand cleaning the skull prosthesis model to obtain a skull repair prosthesis. The application is processed by means of CNC numerical control machining technology, injection molding technology and 3D printing technology, high-temperature injection molding is performed on a medical polymer material, and the skull repair prosthesis is obtained by removing the sand structure. The skull repair prosthesis can realize the ingrowth of scalp soft tissue, speeds up the skull repair and reconstruction process, and reduces the incidence of adverse reactions such as postoperative hydrops.

The invention relates to an implant (I) for the treatment of a bone defect over a surface, in particular a bone defect in the region of the thorax or cranium, comprising a lattice structure (GS) with a top surface (OS) and a bottom surface (US) facing away from the top surface (OS), on which the implant (I) is to be attached to the bone. The lattice structure (GS) has at least one support section (TA), which has been manufactured using an additive manufacturing process. Furthermore, a cover layer (DS) is applied to at least part of each of the at least one support section (TA), which has a lower hardness compared to the support section (TA).

The invention discloses a skull sealing device for intracranial pressure reduction, which comprises a bridging component configured to be in a ring shape matched with the outline of a hollow area of a skull; the sheet-shaped main body is made of a flexible material, the edge of the sheet-shaped main body is attached to the bridging part through the radial inner wall of the bridging part, and the sheet-shaped main body is used for being implanted into the hollow area along with the attached bridging part so as to seal the skull; an elastic framework is embedded in the sheet-shaped main body and allows the sheet-shaped main body to expand towards the outer side of the skull so as to restrain the intracranial pressure from rising; a honeycomb structure is arranged in the sheet-shaped main body, after intracranial pressure is recovered, a curable material is injected into the sheet-shaped main body through the injection port and is guided to diffuse through the honeycomb structure, and after the curable material is cured, the sheet-shaped main body is switched to a rigid state.

An implant (X) for replacing or filling a defect of a flat bone has a flat shape with a first side (X1) and an opposite second side (X2). The implant (X) includes a first layer (S1) formed of non-porous polyetheretherketone or polyethylene, which has such a layer thickness that the shape of the implant (X) is established by the shape of the first layer (S1). The implant (X) includes, in at least some portions on the first side (X1), a second layer (S2) formed of a porous polymer which is not polyaryletherketone or polyetheretherketone. A method for producing such an implant (X) is also provided.

An implant (I) for an areal treatment of a bone defect includes a lattice structure (GS) having a top side (OS) and an underside (US) facing away from the top side (OS) and on which the implant (I) is fixable to bone. The lattice structure (GS) has at least one support section (TA) produced by an additive manufacturing process. In addition, a cover layer (DS) is applied on each of at least some portions of the at least one support section (TA). The cover layer has a lower hardness compared to the at least one support section (TA).

A method for bone regeneration and surgical planning comprising the following steps: Providing a digital dataset of a 3D image of the bones using digital X-ray, orthopantomography (OPT), computed tomography (CT), digital volume tomography (DVT) and / or magnetic resonance imaging (MRI); Identification of deviations from normal anatomy using 3D imaging; Creation of a real 3D model that corresponds to the 3D scan; Identifying deviations based on the real 3D model for planning a surgical intervention, whereby The real 3D model accurately reproduces the anatomy of the bones, including deviations within a tolerance range of ±0.05 mm. During the planning phase, the arrangement of bones and bone fragments is examined, as well as the accessibility of the bone fragments and whose removability is determined, Free-floating bone fragments that have no connection to the other bones are identified in the 3D scan before the actual 3D model is created, and In the 3D scan, appropriate spacers are incorporated between the free-floating bone fragments and the remaining bones. to hold the free-floating bone fragments.

The invention relates to the field of medical instruments, and discloses an assembly for promoting bone healing, comprising: an implantation main body, the surface of which is provided with a mounting hole; the degradable part is arranged in the mounting hole, an open groove is formed in the surface of the degradable part, and the degradable part is elastically extruded in the direction from the outer side to the open groove, the degradable part is stably arranged in the implantation body, healing factors can be released in an oriented mode according to the operation position, the bone healing rehabilitation speed is increased, and the operation efficiency is improved. In addition, the implantation main body keeps providing a required mechanical supporting function for an operation position, so that the bone healing and rehabilitation effect can be ensured.

An implant may include a curved implant body and a flange extending from the implant body, the flange being thinner than the implant body, the implant body and the flange having a first exterior surface and a second exterior surface opposite the first surface in which the implant body and the flange formed by at least partially fused particles. The particles at the first surface define a first average pore size and the particles at the second surface define a second average pore size; with the first average pore size being greater than the second average pore size. The first surface may be a tissue ingrowth surface and the second surface may be a tissue ingrowth barrier.

The invention discloses a personalized implantation structure and method for improving insufficient chin anterior movement in a chin shaping surgery, the personalized implantation structure comprises an implant and a chin anterior movement osteotomy matched with the implant, and the implant is fixed on the chin anterior movement osteotomy. Compared with the prior art, osteotomy forward movement and the implant are combined together to be applied to the chin forming operation, and when the chin bone mass of a patient is insufficient, supplementation can be conducted through the implant. Compared with an autogenous bone or an artificial bone for transplantation, the implant does not need to face the problems of absorption, rejection and the like, and the risk of a secondary operation cannot be increased; meanwhile, compared with the mode that the prosthesis is completely adopted for implantation, the burden of mandibular fibrous tissue can be relieved, and the risk of implant displacement can also be reduced.

The present application relates to the technical field of computer-aided skull repair prosthesis design and manufacturing, in particular to a computer-aided skull repair prosthesis design and manufacturing system. The system comprises a shape prediction unit for solving optimal shape coefficients and generating an initial prosthesis shape; a constraint evaluation unit for calculating a prosthesis conflict index and dividing a conflict level; a correction field generation unit for responding to the prosthesis conflict index, decomposing a physical violation amount, and solving a dense displacement field covering all vertices of the prosthesis through a shape correction propagation model; and a closed-loop optimization unit for applying the dense displacement field to geometric deformation of the initial prosthesis shape to obtain a corrected prosthesis shape, and re-submitting the corrected prosthesis shape to the constraint evaluation unit to execute a hierarchical final version strategy. The present application solves the contradiction between anatomical fidelity and clinical safety constraints in skull repair by constructing a system comprising shape prediction, constraint evaluation, correction generation and closed-loop optimization.