341results about "Skull" patented technology

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an intermedullary implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

The invention relates to the technical field of skull repair, and discloses a personalized 3D printing porous composite hydroxyapatite coating skull repair body which comprises a truss structure, a plurality of porous areas are distributed on the truss structure, bionic bone trabecula structures are integrally formed in the porous areas, the truss structure is composed of hollow pipes communicating with one another, and the hollow pipes communicate with one another. A plurality of small holes and micro holes which are communicated with the interior of the hollow pipe are formed in the hollow pipe, and a composite coating of a hydroxyapatite coating and titanium is sprayed on the porous area; the invention provides a personalized 3D printed skull restoration with a porous composite hydroxyapatite coating. The problem that the biocompatibility, the bone induction capability and the bone ingrowth effect of an existing skull restoration need to be improved is solved.

A method of designing an orthopedic implant comprising: (a) iteratively evaluating possible shapes of a dynamic orthopedic implant using actual anatomical shape considerations and kinematic shape considerations; and, (b) selecting a dynamic orthopedic implant shape from one of the possible shapes, where the dynamic orthopedic implant shape selected satisfies predetermined kinematic and anatomical constraints.

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

A method of designing an orthopedic implant comprising: (a) iteratively evaluating possible shapes of a dynamic orthopedic implant using actual anatomical shape considerations and kinematic shape considerations; and, (b) selecting a dynamic orthopedic implant shape from one of the possible shapes, where the dynamic orthopedic implant shape selected satisfies predetermined kinematic and anatomical constraints.

According to the in-situ printing track planning method provided by the invention, an integrated point cloud data processing flow is designed after 3D scanning, so that manual intervention is reduced; the LSCM algorithm and the ARAP algorithm are respectively utilized to carry out plane parameterization and dimension reduction on the three-dimensional triangular mesh so as to reduce the implementation difficulty and improve the path planning efficiency, and the two methods are mutually verified so as to ensure the parameterization effect; solving a grid correspondence problem by utilizing vertex topology uniqueness, and designing a dynamic reasoning mechanism, namely, when fingerprints are not completely unique, gradually deducing to global correspondence through limited vertex corresponding information in a triangle to adapt to uncertainty of defective grid information; a defective skull layering path is integrally generated through input bone tissue parameters and curved surface defect grids, and the structural characteristics of an original skull are simulated. The whole process of the method from point cloud preprocessing to path generation is automatic, intervention is reduced, response is quick, adaptation individuation is improved, and skull tissue function recovery is promoted through bionic design.

The present application discloses a skull repair connection assembly and an installation method thereof, comprising a lower base and an upper cover; the upper cover comprises a cover plate and a one-way bolt; the one-way bolt is fixedly arranged at the lower middle end of the cover plate; a plurality of inclined protrusions are arranged on both sides of the one-way bolt; the lower base comprises a pair of symmetrically arranged card plates; the pair of card plates are fixedly connected by a bent elastic sheet; a cavity for accommodating the one-way bolt is formed between the opposite surfaces of the pair of card plates and the elastic sheet; a plurality of grooves for cooperating with the protrusions are arranged on the side of the card plate close to the cavity; a buckle for engaging the skull or the repair piece is arranged on the side of the lower end of the card plate away from the cavity; a pressing piece for lifting the card plate is arranged on the side of the upper end of the card plate away from the cavity; the protrusions cooperate with the grooves to form a locking structure, so that the lower base and the upper cover are connected and fixed. The installation can be completed in only two steps, and the operation is simple and convenient, and no auxiliary equipment is required.

The invention relates to a bone cement injection device for skull repair. The bone cement injection device comprises an outer sheath tube, a separate injection structure and an outer push rod, a pushing channel extending in the axial direction is formed in the outer sheath tube, the tube wall of the outer sheath tube is provided with a first hole group and a second hole group which are symmetrically distributed by 180 degrees in the circumferential direction, and each hole group comprises a plurality of via holes arranged at equal intervals in the axial direction; the two symmetrically-arranged separated injection structures are arranged corresponding to the first hole set and the second hole set respectively, each separated injection structure comprises a separated injection pipe, the separated injection pipe is inserted into the pushing channel, a perfusion channel extending in the axial direction is arranged in the separated injection pipe, the near end of the perfusion channel is through, and the far end of the perfusion channel is closed; the rigid contact pins are arranged at equal intervals in the axial direction of the separate injection pipe and penetrate through the side wall of the separate injection pipe at the same circumferential angle, and the inner end of each contact pin is communicated with the perfusion channel. The repairing block can be effectively filled with bone cement, and the effect after skull repairing is improved.

A cranial spring for treatment of craniosynostosis includes two arms that extend from a center point or center portion and have a space or gap disposed between end portions of the arms. Each of the arms can include a foot portion configured to distribute a spring force over a wider surface area of bone relative to conventional cranial springs. In some examples, the arms are linear and extend away from a curved central vertex portion, thereby giving the spring an overall U-shape or V-shape configuration. In other examples, the arms are continuously curved thereby giving the spring an overall circular shape. The spring can be formed from a bioresorbable material that is configured to dissolve after implantation over a specified resorption period, and therefore can be used in cranioplasty without requiring a second surgical procedure for removal thereof.

Orthopedic implants and related surgical methods for using same. The implants have suture bore geometries that facilitate performance of the surgical methods, thereby providing for improved optimal biomechanical force application in various anatomies. The implants include suture bores that have an angled / diagonal, or skewed, orientation within the anatomical planes (lateral / sagittal and frontal / coronal). The suture bores have the skewed orientation so that the adjacent soft tissues (i.e., tendons or ligaments) can be advanced via the suture therethrough in superior-inferior and inferior-superior directions. Openings, or holes, at the ends of the suture bores are configured to approximate the adjacent associated soft tissue to the implant.

The invention relates to the technical field of peek skull defect repair, in particular to a skull defect repair structure based on structural reconstruction of a peek skull repair material, which comprises a repair patch, a plurality of hourglass-shaped pore channels are formed in the surface of the repair patch, the diameter of the port of a horn-shaped concave groove is larger than that of the tail of the horn-shaped concave groove, the diameter of the port is 1.5 mm, the diameter of the tail of the horn-shaped concave groove is 0.05 mm, and the diameter of the hourglass-shaped pore channels is 1.5 mm. The hourglass-shaped hole channel is designed to be in an hourglass shape with two wide ends and a slender channel, the contact area between the two ends of the hole channel and healthy skull tissue is increased, growth, climbing and combination of granulation tissue are facilitated, meanwhile, attachment, adhesion and healing of soft tissue inside and outside a growth promoting layer repairing material are facilitated, the integration degree of the implant is further improved, and the survival rate of the implant is increased. And the outer surface of the PEEK is covered with the convex structures, so that the contact area between the PEEK material and tissues can be increased, the growth and combination of the tissues are facilitated, and individualized design conforming to aesthetic plastic surgery, thickening design for supplementing temporal muscle atrophy space and mutual embedding of the PEEK material and the skull are carried out.

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

The present invention concerns a device (1) for restoring the integrity of the cranial bones, particularly of the non-resorbable type, comprising a plate body (3) in turn comprising a central body (5) and at least one peripheral portion (71), wherein said at least one peripheral portion (71) comprises fastening means (72) for fastening the device itself to the cranial bone (100), and wherein said cranial fixation device (1) comprises, at said central body (5), at least one insertion portion (50) protruding in a direction substantially orthogonal to said plate body (3) and which is configured to be inserted within a hole (102), drilled in the skull (100) of a patient, wherein said insertion portion (50) comprises a trabecular structure (51), suitable for stimulating bone regrowth and osseointegration of the device itself.

The invention discloses an embedded skull repair material structure, a drainage device and a standby ventricular puncture guide plate, the embedded skull repair material structure comprises a skull repair material, an epidural drainage structure, a double-cavity catheter and an anti-reflux drainage bag, the skull repair material is vault-shaped, and the epidural drainage structure is located on one side of an inner concave surface of the skull repair material; according to the epidural drainage device, the epidural drainage structure is additionally arranged, the epidural bloody liquid between the skull repair material and the epidural is drained, the occupied space of the drainage tube is reduced in the drainage process, the drainage tube is inserted into the epidural drainage structure, and the epidural bloody liquid is drained out and discharged out of the body. The epidural drainage device has the advantages that the epidural bloody liquid between the skull repair material and the epidural is drained through the additional arrangement of the epidural drainage structure; by means of the structure, the drainage tube is prevented from extruding the dura mater, the drainage safety after the skull repair material is implanted is improved, the structure transfers the drainage part from the exterior of the repair material to the exterior of the dura mater, the hematoma forming rule is better met, and the drainage efficiency of epidural bloody liquid can be improved by arranging a plurality of drainage grooves.

The invention relates to 3D printing medical equipment. The 3D printing type skull protective cap capable of enhancing protection comprises a protective cap body which is formed in a 3D printing mode and matched with a skull defect part of a patient, and a soft cushion arranged between the edge of the bottom of the protective cap body and the head tissue of the human body. The soft cushion is also formed in a 3D printing mode. According to the protective cap, the soft cushion is additionally arranged below the protective cap body, the stress condition of the contact face with the head soft tissue of the human body can be well improved through the soft cushion, and the installation stability and the protection reliability of the protective cap body are improved. Through the soft cushion, the processing error gap objectively existing between the head soft tissue of the human body and the protective cap main body can be filled, the contact effectiveness between the head soft tissue of the human body and the protective cap main body is ensured, the condition of abnormal stress or stress concentration is improved, and the risk that the protective cap main body is out of position when subjected to external force is reduced.

The present invention relates to a medical device manufactured using the additive manufacturing process (3D printing). It is a medical device used preferably as a bone graft composed of a porous structure based on bioceramics based on β-tricalcium phosphate (β-TCP) or hydroxyapatite, which may or not contain nanostructures in its composition, for example: carbon nanostructures (graphene, graphene oxide, reduced graphene oxide, carbon nanotubes, etc.) and, in preferred embodiments, stem cells and polymeric membrane. Also, the present invention relates to the use of this device as a bone graft and the process of preparing this device.

The present invention concerns an improved cranial prosthesis (1). According to the invention, such an improved cranial prosthesis (1) comprising a lamina (3), made of a biocompatible material, configured to replicate the course of the outer surface of the cranial bone to be restored, where said lamina (3) comprises a portion of removable lamina (5) suitable for allowing intracranial access (7).

A tibial implant may include a plurality of implant subunits. The implant subunits may be configured for individual insertion within a wedge-shaped-void of the tibia. The implant subunits may further be configured for assembly in order to provide an implant substantially covering an exposed portion of cortical bone formed when performing a surgical osteotomy. Methods and kits for insertion and assembly of implants are further described.

Implants and related methods for achieving dynamic fixation are disclosed. The implant comprises a head portion at a proximal end of the implant comprising external threads and a first axial through hole, and an anchor portion extending from the head portion at a distal end of the implant comprising external threads and a second axial through hole in communication with the first axial through hole. The implant further comprises a flexible constraint member extending within the first and second axial through holes comprising a first end portion coupled to the head portion and a second end portion coupled to the anchor portion. At least one of the head portion and the anchor portions forms a breakaway portion with aligned internal and external circumferential grooves configured to concentrate stress thereat such that the breakaway portion fractures via forces acting on the implant to separate the head and anchor portions.

Described herein are systems and methods for controlling a design and manufacturing process of a user-specific device (e.g., a patient-specific medical device). A method involves receiving, from the requesting entity user-specific information related to a requested device. Based on the information, a list of devices matching user-specific information is determined and displayed for selection by the requesting entity. Based on the information and the selection, a sequence of tasks for design and manufacturing of the user-specific device is generated. Based on the received information and the tasks, a designing entity can generate an interactive digital model of the user-specific device. Based on the interactive model, feedback is received from the requesting entity. Based on the feedback, the interactive digital model and sequence of tasks may be updated. Depending on a location of the requesting entity, the sequence of tasks or devices can be configured to satisfy regulatory compliance.

Provided herein are cutting template devices and methods of use thereof for preparing a skull for implantation of a pulse generator (IPG) for deep brain stimulation. The cutting templates described herein may comprise a coarse texture and / or one or more protruding members to minimize movement of the cutting template when placed against an otherwise-slippery surface of the skull. The body of the cutting templates may be sized to correspond with a profile of an IPG and may include one or more curvatures corresponding with the anatomic curvature(s) of the skulk

The present invention relates to a guided bone regeneration device that is intended for the reconstruction of a buccal bone defect and is composed of an optionally micro-perforated smooth wall which is made of titanium and has a shape that covers said buccal bone defect.The present invention also relates to a process for manufacturing a device of the invention, comprising a step of constructing the device of the invention according to a three-dimensional representation obtained by means of a technique of maxillary-dental imaging of the bone defect.

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.

The invention discloses an automatic laser cutting method and system for skull repair, and the method comprises the steps: firstly obtaining the medical image data of a skull defect area of a patient, carrying out the three-dimensional modeling, then matching with a preset repair implant standard parameter library, determining the shape, size and edge contour of a repair implant, and carrying out the laser cutting of the repair implant. A laser cutting path is generated through a path planning algorithm and optimized, a laser head is driven to automatically cut the repairing material, and the cutting process is monitored in real time; the system comprises a medical image processing module, a three-dimensional modeling module, a path planning module, a laser cutting execution module, a real-time monitoring module and a postoperative evaluation module. Compared with the prior art, the method has the advantages that the medical image data processing precision is improved; personalized design is realized; optimizing a laser cutting path; and the real-time monitoring and adjusting capability is enhanced.

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 relates to the field of medical instruments, and discloses a modular system tibia component which comprises a tibia support base body, a metal sleeve, a PE sleeve and a screw, the upper surface of the tibia support base body is of a polished type, a groove is formed in one side of the tibia support base body, a conical dovetail is arranged in the middle of the tibia support base body, and the metal sleeve is connected with the PE sleeve. A conical hole is formed in the top of the tibia support base body, the conical hole of the tibia support base body is used for being connected with a metal sleeve or a PE sleeve, a stand column is arranged at the bottom of the tibia support base body, a cavity is formed in the bottom of the stand column, and a first internal thread is arranged in the middle of the stand column. Through the combination of the conical dovetail, the conical hole and the stand column on the tibia support base body, the metal sleeve, the PE sleeve, the fixed tibia pad, the rotary tibia pad and other components, flexible combination is conducted according to different operation requirements, and therefore the adjustment requirement of a doctor for an osteotomy scheme in the operation process is greatly reduced.

To provide a tibial prosthesis having a distal mechanism for non-cemented fixation.SOLUTION: Techniques described herein relate to a tibial prosthesis for a knee arthroplasty including a baseplate and a tibial keel. The baseplate arbitrarily includes a distal surface 104 sized and shaped to substantially cover a proximal resected surface of a tibia; a proximal surface opposite the distal surface, the proximal surface having a lateral compartment and a medial compartment opposite the lateral compartment; a periphery extending between the distal surface and the proximal surface; a first layer of porous material forming at least a majority of the distal surface and extending to the periphery; and a second layer of nonporous or relatively less porous material having a plurality of reference features extending through the first layer, wherein the plurality of reference mechanisms form at least a portion of the distal surface. The tibial keel extends distally from the distal surface to define a longitudinal tibial keel axis.SELECTED DRAWING: Figure 1C-D