30 results about "Tibial nerve" patented technology

An electro-acupuncture device for controlling over active bladder is described. The device includes a housing, circuitry for generating electro-acupuncture stimulus disposed within the housing, and at least one strap for securing the housing to the ankle. The device also includes a pair of D-shaped electrodes received within the bottom outer surface of the housing. The housing of the device is flexible with a low profile and is shaped so that it is conformal to a person's ankle. When the device is strapped to a patient's ankle, the electrodes contact the ankle and provide electric stimulation to the tibial nerve within the ankle.

One embodiment of the present invention relates to a knee prosthesis system with at least a first tibial portion element (a tibial insert or a tibial insert trial) and a second tibial portion element (a tibial insert or a tibial insert trial), wherein each of the first tibial portion element and the second tibial portion element has a different slope. Another embodiment of the present invention relates to a method of implanting a knee prosthesis, wherein the method utilizes at least a first tibial portion element (a tibial insert or a tibial insert trial) and a second tibial portion element (a tibial insert or a tibial insert trial), wherein each of the first tibial portion element and the second tibial portion element has a different slope.

Methods, systems, and devices for replacement of a joint with a prosthetic system that replicates the natural kinematics of the joint is disclosed. A prosthetic system according to one embodiment includes a tibial component having a tibial plateau and a tibial stem portion, the tibial plateau having a top side and a bottom side, a tibial insert, with a bearing surface adapted to be positioned on the top side of the tibial plateau, a femoral component having a base portion and a central housing, the femoral component having an axis of extension-flexion rotation, the base portion having a pair of condyles, a mechanical linkage component linking the tibial component with the femoral component and with the tibial insert in between the tibial component and the femoral component, so that there is a center of contact between the condyles and the bearing surface, the mechanical linkage component adapted to allow the center of contact to move posteriorly during flexion, provide for the movement of the axis of extension-flexion rotation in the superior-inferior direction, and allow rotation of the tibial component, the bearing surface, and the femoral component about a superior-inferior axis in order to provide and control the natural kinematics of the knee joint.

A tibial implant system has an ultra-high molecular weight polyethylene tibial insert which can engage with either one of two tibial trays through differing means of engagement. The tibial insert includes a locking wire and locking tab disposed along an anterior surface and a locking recess disposed along a posterior surface. A first polymeric tibial tray includes a bead along an anterior wall and an undercut area along a posterior wall. A second metallic tibial tray includes a plurality of barbs along an anterior wall and an undercut area along a posterior wall.

A prosthetic tibial insert comprises a tibial tray insert including a stabilizing post, where the centerline of the stabilizing post is offset from at least one of an anterior-posterior centerline and a medial-lateral centerline of the tibial tray insert. A method of imparting axial rotation comprises shifting the axis of axial rotation between a tibial prosthesis and a femoral prosthesis by providing at least one of offsetting a stabilizing post associated with a tibial insert, increasing the radii of a medial receiver of the tibial insert, and increasing conformity between a medial receiver of the tibial insert and a medial condyle.

Described herein is an implantable medical device that includes a body having one or more ultrasonic transducers configured to receive ultrasonic waves and convert energy from the ultrasonic waves into an electrical energy, two or more electrodes in electrical communication with the ultrasonic transducer, and a clip attached to the body that is configured to at least partially surround a nerve and / or a filamentous tissue and position the two or more electrodes in electrical communication with the nerve. In certain examples, the implantable medical device includes two ultrasonic transducers with orthogonal polarization axes. Also described herein are methods for treating incontinence in a subject by converting energy from ultrasonic waves into an electrical energy that powers a full implanted medical device, and electrically stimulating a tibial nerve, a pudendal nerve, or a sacral nerve, or a branch thereof, using the fully implanted medical device.

A tibial implant having a stem and a tibial sleeve. The tibial sleeve having a proximal end and a distal end, where the proximal end includes an annular male portion. The tibial implant also includes an offset ring having a central bore that is offset from the center of the offset ring, where the bore of the offset ring receives the annular male portion of the tibial sleeve. The tibial implant further includes a base plate having a proximal end and a distal end, where the distal end of the base plate forms a female portion, and the female portion receives both the offset ring and the male portion of the tibial sleeve.

A tibial implant includes a baseplate having a proximally facing surface surrounded at least in part by a proximally extending wall. The wall has a ramp surface extending from the wall towards the baseplate proximally facing baseplate surface and a bore located distally of the ramp. A polyethylene bearing insert is mounted on the baseplate and has a distally facing surface engaging the proximally facing surface of the baseplate. The distally facing bearing insert surface has a recess and the insert has a side surface with a passageway extending from the recess through the insert side surface. A spring detent is mounted in the bearing insert recess and has a moveable pin biased outwardly of the bearing insert side surface and into the bore of the baseplate.

In one embodiment, a method includes implanting an implant entirely under the subject's skin. The implant includes a passive electrical conductor of sufficient length to extend from subcutaneous tissue located below one of a surface cathodic electrode and a surface anodic electrode to the tibial nerve. The surface electrodes are positioned in spaced relationship on the subject's skin, with one of the electrodes positioned over the pick-up end of the electrical conductor such that the portion of the current is transmitted through the conductor to the tibial nerve, and such that the current flows through the tibial nerve and returns to the other of the surface cathodic electrode and the surface anodic electrode. An electrical current is applied between the surface cathodic electrode and the surface anodic electrode to cause the portion of the electrical current to flow through the implant to stimulate the tibial nerve.

The invention discloses a posterior vascular nerve protector of a tibia, and belongs to the technical field of orthopedic medical instruments. The protector is applied to the fracture of a tibial plateau and used for protecting posterior vascular nerves of the tibia. The protector is characterized in that a protecting plate is a rectangular plate, the rear end of the protective plate is connectedwith the lower end of a sleeve tube through a rotary shaft, a thread is arranged in an inner hole of the sleeve tube, a thread matching with the inner hole thread of the sleeve tube is arranged on a screw rod, the lower portion of the screw rod is screwed in the sleeve tube, the rear portion of the protective plate is provided with a connecting plate shaft which is connected with the lower end ofa connecting plate, the connecting plate is parallel to the sleeve tube, the upper end of the connecting plate is perpendicularly connected with the front end of a handle, the handle is horizontally placed, a circular hole is formed in the front portion of the handle, and the screw rod perpendicularly penetrates through the circular hole of the handle and is connected with the handle. By means ofthe protector, the difficult problem of how to prevent from the posterior vascular nerves of the tibia from damaging during a tibial plateau resetting operation is solved, the popliteal artery and nervi tibialis at the rear side of the tibia can be effectively protected to provide effective technical support for the smooth implementation of the tibial plateau resetting operation, and the protectorhas an extreme practical clinical meaning.

Described herein is an implantable medical device that includes a body having one or more ultrasonic transducers configured to receive ultrasonic waves and convert energy from the ultrasonic waves into an electrical energy, two or more electrodes in electrical communication with the ultrasonic transducer, and a clip attached to the body that is configured to at least partially surround a nerve and / or a filamentous tissue and position the two or more electrodes in electrical communication with the nerve. In certain examples, the implantable medical device includes two ultrasonic transducers with orthogonal polarization axes. Also described herein are methods for treating incontinence in a subject by converting energy from ultrasonic waves into an electrical energy that powers a full implanted medical device, and electrically stimulating a tibial nerve, a pudendal nerve, or a sacral nerve, or a branch thereof, using the fully implanted medical device.

Example inventions reduce nocturia for a user. Examples determine that the user is sleeping, determine that the user has an urge to urinate, and then apply external electrical stimulation to a tibial nerve of the user.

The present disclosure is directed to a transcutaneous nerve stimulation device and system for treating overactive bladder (OAB) and its symptoms. The devices and systems described herein are intuitively shaped to enable proper placement by the user to stimulate the user's tibial nerve.

In various embodiments, a wearable non-invasive device for enhancing venous return in a subject's lower extremities may be provided. The apparatus may include a monitoring device configured to determine a venous state of the subject, such as a photoplethysmography (PPG) sensor. The apparatus may further include: a neuromuscular electrical stimulation (NMES) device configured to generate electrical stimulation in response to the determined venous state, and to simultaneously stimulate the subject's triceps calf and deep posterior region with the generated electrical stimulation Calf muscles to enhance venous return from the lower extremities. In an alternative embodiment, the electrical stimulation may retrogradely target the subject's triceps calf and deep posterior calf muscles at the subject's tibial nerve.

A structure improvement of orthopaedic implant for connecting a distal femur and a proximal tibia, and a stem was implanted into the proximal tibia, in which formed to allow inter-engagement between the stem of the tibia and the structure improvement of orthopaedic implant. The structure improvement of orthopaedic implant includes a tibial baseplate, a tibial insert, and a reinforcement. The tibial baseplate forms a recess having a bottom that has a central portion defining a through hole extending through the tibial baseplate. The tibial insert includes a support, a through region, and a projection, wherein an end of the tibial insert forming the projection corresponding to the recess of the tibial baseplate for press-fitting to the tibial baseplate. The reinforcement is inset in the tibial insert and includes a sleeve and a bolt. As such, the advantages of stable coupling includes force resistance, avoids insert loosening then extends prosthetic longevity.