|| List of recent Implant-related patents
| Computer-implemented method of preoperatively determining the optimized external shape of a prosthetic femoral hip stem|
Computer-implemented method of preoperatively determining the optimized external shape of a prosthetic femoral hip stem for use in partial cementing hip replacement procedures and of a reamer for reaming a cavity in the femur of a patient for implanting the prosthetic femoral hip stem, comprising: a) setting an initial external shape of the prosthetic femoral hip stem based on the reconstructed femur anatomy of a patient, b) generating an associated initial reamer by negatively offsetting the initial external shape of the prosthetic femoral hip stem by an uniform offset value δ, c) calculating contact stresses at the interface of the prosthetic femoral hip stem and the patient's femur when reamed by the initial reamer and d) optimizing the offset value δ, so that the contact stresses are within a predetermined acceptable range.. .
| Method for designing dental prosthesis structures on implants|
Method for modelling positions of implants in the patient's mouth in order to calculate the program for milling the structure of the prosthesis, which can be coupled onto the implants, where the operation of modelling the implants includes: a placing posts, which can be detected by x-ray, on the implants in the patient's mouth; performing a cat scan of the patient's mouth with the posts; converting the cat result into a three-dimensional computer model for the cad/cam manipulation thereof; defining the posts in the computer model; cad/cam modelling of the structure on the computer model with the defined posts; and generating a file containing positions and orientations for calculating the structure milling program.. .
| Interphalangeal joint implant methods and apparatus|
A method and apparatus for correcting malformed joints, in particular the “hammer toe” contraction of the proximal interphalangeal joint. The disclosure comprises a two-component implant: a proximal phalanx component and a middle phalanx component.
| Limited motion tibial bearing|
A tibial implant comprising: a baseplate having a bone contacting surface, a bearing support surface and a proximally extending wall at least partially surrounding the bearing support surface; a bearing component slidably mounted with respect to the baseplate bearing support surface, the bearing component having a proximally facing condylar surface and a distally facing surface for contacting the baseplate bearing support surface the proximally and distally facing bearing component surfaces spaced to define a circumferential side surface therebetween; and an elastic gasket element interposed within a gap formed between the baseplate proximally extending wall and the bearing component circumferential side surface.. .
| Trial instrument assembly for use in a surgical procedure|
A trial instrument assembly for use in a surgical procedure to replace an orthopaedic joint includes a trial implant having a stem portion for fitting within a prepared cavity in the patient's bone. The stem portion defines a stem axis.
| Textured implant device|
A textured bone graft or implant device includes a spatial member having a number of three dimensional units coupled together, the three dimensional units each include a number of bars coupled together to form a number of openings and to form a porous structure for the spatial member and for allowing the bone materials of the user to be grown and filled into the openings of the textured implant device, the spatial member includes a chamber for engaging with a casing, and the casing includes a compartment for engaging with an inner core, the casing and the inner core each include a number of bars for forming a resilient or flexible or compressible or deformable structure.. .
| Low contact femoral and tibial bases|
Various embodiments are directed to femoral and tibial bases that form structures of an implantable mechanical energy absorbing system. A bone facing surface of each type of base has a main surface portion and a plurality of protrusions extending from the main surface portion.
| Protein based materials, plastic albumin devices and related methods|
Medical devices with a plastic albumin body with a defined three dimensional shape that are particularly suitable for pressure equalization tubes. The plastic albumin body can be a unitary substantially monolithic body of albumin.
| Systems and methods for tissue expansion with fluid delivery and drainage system|
The invention provides systems and methods for tissue expansion. A tissue expander may have an implant portion which may be used to expand the tissue.
| Post-operative adjustment tool, minimally invasive attachment apparatus, and adjustable tricuspid ring|
An implantable device system for controlling the dimensions of internal anatomic passages corrects physiologic dysfunctions resulting from a structural lumen which is either too large or too small. Implantable devices are disclosed which employ various mechanisms for adjusting and maintaining the size of an orifice to which they are attached.
| Durable high strength polymer composites suitable for implant and articles produced therefrom|
Thin, biocompatible, high-strength, composite materials are disclosed that are suitable for use in a valve for regulating blood flow direction. In one aspect, the composite material maintains flexibility in high-cycle flexural applications, making it particularly applicable to high-flex implants such as a prosthetic heart valve leaflet.
| Prosthetic heart valve devices, prosthetic mitral valves and associated systems and methods|
Devices and methods for implantation at a native mitral valve. One embodiment of the device includes a valve support having a first region and a second region, and anchoring member having a longitudinal dimension with a first portion configured to contact tissue at the non-circular annulus, a second portion configured to be attached to the valve support, and a lateral portion transverse to the longitudinal dimension between the first portion and the second portion.
| Minimally-invasive cardiac-valve prosthesis|
A cardiac-valve prosthesis is adapted for percutaneous implantation. The prosthesis includes an armature adapted for deployment in a radially expanded implantation position, the armature including a support portion and an anchor portion, which are substantially axially coextensive with respect to one another.
| Biodegradable medical implants, polymer compositions and methods of use|
Embodiments of the invention provide compositions comprising bio degradable polymers, medical implants fabricated from these compositions and methods of using such implants. Many embodiments provide medical implants comprising a first polymer backbone having a first rate of biodegradation and a second polymer backbone having a second rate of biodegradation faster than the first rate.
| Apparatus comprising an aligning device, set and method|
An apparatus for use during implanting at least one medical implant at an implantation site within a patient's body may include an aligning device for aligning the apparatus at the implantation site. The aligning device is capable of being transferred from a non-aligning position into an aligning position..
| Percutaneous implant extraction device|
A minimally invasive catheter system and method for extraction of a shape memory device such as a nitinol stent, from inside a tubular organ, is provided. The catheter system comprises a multi-lumen tube with at least one expandable balloon and an extraction device.
| Multizone epicardial pacing lead|
A multizone epicardial pacing lead (10) having a lead body (12) with a proximal connector (14) for coupling to a generator of an active implantable medical device and, distally, an anchor to an epicardium wall and an active part comprising a plurality of stimulation electrodes, coming into contact with, or penetrating, the epicardium wall. This active part comprises a distributor housing (16) and a network of flexible microcables (18) radiating from the housing.
| Implantable device lead including a distal electrode assembly with a coiled component|
A medical device lead includes an insulative body having a proximal region with a proximal end, and a distal region with a distal end. The medical device lead also includes a connector coupled to the proximal end of the insulative body of the lead to electrically and mechanically connect the lead to an implantable pulse generator.
| Couplings for implanted leads and external stimulators, and associated systems and methods|
Couplings for implanted leads and external stimulators, and associated systems and methods are disclosed. A system in accordance with a particular embodiment includes a cable assembly that in turn includes an electrical cable having a proximal end and a distal end.
| Leads with tip electrode for electrical stimulation systems and methods of making and using|
An implantable electrical stimulation lead includes a tip electrode disposed on a distal tip of the lead body. One tip electrode has a base and a separate plug attached to the base.
| Multi-electrode implantable systems and assemblies therefor|
Hermetically sealed assemblies, for example, that include ic chips, are configured for incorporation within a connector terminal of an implantable medical electrical lead, preferably within a contact member of the terminal. An assembly may include two feedthrough subassemblies, welded to either end of the contact member, to form an hermetic capsule, in which an ic chip is enclosed, and a tubular member, which allows a lumen to extend therethrough, along a length of the terminal.
| Systems and methods for controlling neurostimulation based on regional cardiac performance for use by implantable medical devices|
Techniques are provided for controlling neurostimulation such as spinal cord stimulation (scs) using a cardiac rhythm management device (crmd). In various examples described herein, neurostimulation is delivered to a patient while regional cardiac performance of the heart of the patient is assessed by the crmd.
| Leadless intra-cardiac medical device with dual chamber sensing through electrical and/or mechanical sensing|
A leadless intra-cardiac medical device senses cardiac activity from multiple chambers and applies cardiac stimulation to at least one cardiac chamber and/or generates a cardiac diagnostic indication. The leadless device may be implanted in a local cardiac chamber (e.g., the right ventricle) and detect near-field signals from that chamber as well as far-field signals from an adjacent chamber (e.g., the right atrium)..
| Method for detecting and treating insulation lead-to-housing failures|
Disclosed is a method for the diagnosis of conductor anomalies, such as an insulation failure resulting in a short circuit, in an implantable medical device, such as an implantable cardioverter defibrillator (icd). Upon determining if a specific defibrillation pathway is shorted, the method excludes the one electrode from the defibrillation circuit, delivering defibrillation current only between functioning defibrillation electrodes.
| Method for detecting and localizing insulation failures of implantable device leads|
The invention relates to a method and apparatus for diagnosis of conductor anomalies, such as insulation failures, in an implantable medical device, such as an implantable cardioverter defibrillator (icd), a pacemaker, or a neurostimulator. Insulation failures are detected and localized by identifying changes in electrical fields via surface (skin) potentials.
| Lower extremity fusion devices and methods|
A fusion implant and fusion members for fusing target fusion bones of a lower extremity. The fusion implant including internally threaded apertures of a first thread lead, and fusion members including threading of the first thread lead and threading of a second thread lead that is less than the first thread lead.
| Percutaneous spinal implants and methods|
Medical devices and related methods for the treatment of spinal conditions are described herein. In one embodiment, a method includes disposing at least a portion of a support member into a space between adjacent spinous processes.
| Apparatus and methods for dilating and modifying ostia of paranasal sinuses and other intranasel or paranasal structures|
Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures.
| Steerable lesion excluding heart implants for congestive heart failure|
Devices, systems, and methods for treating a heart of a patient may make use of one or more implant structures which limit a size of a chamber of the heart, such as by deploying a tensile member to bring a wall of the heart toward (optionally into contact with) a septum of the heart.. .
| Implant placement device|
An implant placement device includes a longitudinal axis member having a lumen extending along a longitudinal axis of the longitudinal axis member such that the implant is disposed in a stretched state and an opening formed by communicating with the lumen, a stylet provided in the lumen, a sheath into which the longitudinal axis member is inserted,—an operating part operating the sheath so as to be rotatable around the longitudinal axis, and having a contact surface that is in contact with a part of the implant, which is pushed out of the opening of the longitudinal axis member by the stylet, in a rotational direction around the longitudinal axis in a state where the opening of the longitudinal axis member is located inside the sheath.. .
| Functionally graded material tube and method for use of the same in implantation|
A device for implantation a patient may include a tubular fiber wall that defines at least one opening and at least one lumen continuous with the one opening and adapted to allow the passage of fluid. The tubular fiber wall typically contains a porosity gradient that is adapted to permit passage of different size substances at different locations along the gradient.
| Method of surgically preparing a patient's femur|
A method of surgically preparing a distal end of a femur for implantation of a femoral prosthetic component includes positioning a base cutting block and an intramedullary adaptor on the distal end of the femur such that a first end of the intramedullary adaptor is received in the medullary canal of the femur and the intramedullary adaptor is secured to the base cutting block, attaching a first modular cutting block to an anterior side of the base cutting block, resecting a first portion of the distal end of the femur using a cutting guide defined in the first modular cutting block, the cutting guide of the first modular cutting block, and resecting a second portion of the distal end of the femur using a base cutting guide defined in the base cutting block.. .
| Joint arthrodesis and arthroplasty|
An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an intramedullary nail and an anchor.
| Segmented intramedullary implant|
A segmented intramedullary nail having an implantation state in which the segments are relatively moveable to permit conformation to the curvature of a bone during implantation, and a post-implantation state in which the segments are not relatively moveable, and in which the segments retain the configuration of the curvature of the bone. The nail may be radiolucent and/or contain radiopaque markings.