259 results about "Device implant" patented technology

For repairing a valve situated between an atrium and a ventricle of a heart of a subject, and having a first leaflet and a second leaflet, apparatus is provided that includes an implant and a delivery tool. The implant includes a flexible patch defining slots along an edge of the patch; a first anchor; and a second anchor. The delivery tool is adapted to transluminally deliver the implant to the heart; and implant the implant in the ventricle by securing the patch against a ventricular surface of the first leaflet by anchoring the first anchor to the first leaflet, and against a ventricular surface of the second leaflet by anchoring the second anchor to the second leaflet, such that (i) chordae of the valve extend through the slots, and (ii) the patch bridges a gap between the first leaflet and the second leaflet. Other embodiments are also disclosed.

The invention relates to a flexible microelectrode implantation device, implantation equipment and an implantation system. The implantation device comprises a base, a plurality of implantation needle assemblies, a plurality of flexible microelectrodes and an implantation control piece. Each implantation needle assembly comprises a fixed seat and an auxiliary implantation needle which are connected with each other, the multiple fixed seats are detachably connected to the base, and each auxiliary implantation needle is connected with one flexible microelectrode; the implantation control piece comprises a first magnetic piece, each fixing seat comprises a second magnetic piece, the implantation control piece is magnetically attracted to the second magnetic piece on each fixing seat through the first magnetic piece, then each fixing seat and the corresponding auxiliary implantation needle are driven to be separated from the base, and the corresponding flexible microelectrode is implanted to a preset position of a brain area. By means of the arrangement, the implantation area and the implantation depth of each auxiliary implantation needle can be dynamically selected, rapid implantation of a single auxiliary implantation needle can be achieved in a magnetic attraction control mode, and the implantation efficiency cannot be reduced.

The invention relates to the technical field of medical equipment, and discloses a sensor implantation mechanism which is used for realizing repeated use of auxiliary implantation equipment. The sensor implantation mechanism comprises a sensor module and a reusable auxiliary implantation device. The sensor module comprises a packaging box, a module support, a guide needle and a sensor device, the packaging box comprises a bottom shell and a box cover, and the box cover detachably covers the top end of the bottom shell. The reusable auxiliary implantation device comprises an injection structure and a reset structure, and the injection structure can be fixed to the module support. The injection structure can be implanted into the human body along the drive sensor device. The injection structure is provided with a clamping assembly, the clamping assembly is used for clamping the guide needle, and when the injection structure moves in the direction opposite to the injection direction, the injection structure is further used for driving the guide needle to be separated from the sensor device. The reset structure is used for driving the second clamping structure to be separated from the first clamping structure and also used for driving the guide needle to be separated from the clamping assembly.

The invention relates to the technical field of medical instruments, in particular to a woven type electroencephalogram signal collecting support which comprises a support body. The electrodes are distributed on the surface of the support body, the surfaces of the electrodes are coated with insulating layers, and signal acquisition ends are exposed; one end of the wire is connected with the electrode, and the other end converges to form a physical interface. The brain-computer interface braided stent implanted into the brain in a vascular intervention mode is used for solving the problems that in the prior art, a brain-computer interface electrode device is large in implantation trauma, the contact stability of an electrode and brain tissue is low, and the signal collection coverage range is limited.

A method for automating selection of stimulation parameters for a stimulation device implanted in a patient includes setting, by a user, at least one limit on each of at least one stimulation parameter and performing, automatically using at least one processor, the following actions for each of a plurality of sets of the stimulation parameters constrained by the at least one limit: stimulating the patient, by the stimulation device, using the set of stimulation parameters, sensing one or more effects arising in response to the stimulation, and updating, by the at least one processor, a collection of the effects and sets of stimulation parameters with the one or more effects and the set of stimulation parameters. The method further includes selecting, by the processor, one of the sets of stimulation parameters based on the effects.

The invention belongs to the field of interventional medical instruments. The invention provides an anchor. The anchor comprises a main body, a connector and a connecting rod mechanism. The body includes a guide rod and a tip element. And the connector is movably arranged on the guide rod in a sleeving manner. The connecting rod mechanism comprises a first connecting rod and a second connecting rod which are rotationally connected with each other. The first connecting rod is rotationally connected to the connector. The second link is rotatably connected to the tip element. The connector is constructed to move in the axial direction of the guide rod so as to drive the connecting rod mechanism to be unfolded or folded in the radial direction. The anchor is configured to maintain an unfolded state after implantation into tissue. The invention also provides an anchor delivery device, an implant and a repair system.

The utility model discloses a hot pressing forming machine which comprises a first mold moving device and a second mold moving device, the first mold moving device is used for transferring a first material carrying mold, the second mold moving device is used for transferring a second material carrying mold, and the first mold moving device is provided with an implanting device, a pressing device, a hot pressing device and a discharging device. The implanting device, the pressing device, the hot pressing device and the discharging device are sequentially arranged along a first material carrying mold transferring route, the implanting device is used for implanting a first magnetic core into a first material carrying mold, the second mold transferring device is provided with a powder filling device and a forming device, and the powder filling device and the forming device are sequentially arranged along a second material carrying mold transferring route. The powder filling device is used for filling the second material carrying die with powder, the forming device is used for pressing the powder of the second material carrying die out of the second magnetic core, and the pressing device is arranged at the intersection position of the transferring route of the first material carrying die and the moving route of the second material carrying die. Therefore, the utility model has the advantages of small occupied area, lower manufacturing cost, high pressing efficiency and low energy consumption.

Provided in the present application are an arousal electrical stimulation system for rehabilitation of disorders of consciousness and a method. The system comprises: a program control module, used for setting a plurality of stimulation point combinations and a plurality of stimulation parameter combinations; an implanted spinal cord stimulation module, used for sequentially outputting stimulation signals according to the plurality of stimulation point combinations and the plurality of stimulation parameter combinations; an acquisition module, used for acquiring electroencephalographic signals and electromyographic signals when the stimulation signals act on a patient suffering from disorders of consciousness; and a processing module, used for processing the electroencephalographic signals and the electromyographic signals to obtain a human body index, and, on the basis of the human body index, determining an optimal stimulation point combination and an optimal stimulation parameter combination from among the plurality of stimulation point combinations and the plurality of stimulation parameter combinations. The present invention uses the cooperation of in-vitro electroencephalographic and electromyographic sampling devices and a spinal cord electric stimulation device implanted into the human body, and performs calculation by means of the processing module, so as to obtain the optimal electric stimulation electrode point combination and the optimal electric stimulation parameter combination, thereby improving the arousal efficiency.

A repair device for a proximal humeral fracture includes a stable structure, and the stable structure is connected to a humerus through a humeral medullary cavity supporting portion, a first insertion body, a fitting portion, and a second insertion body. The first insertion body is coupled to the second insertion body, the first insertion body is connected to a humeral head, and the second insertion body is clamped on the fitting portion. After the repair device is implanted into a body of a patient, a fractured site of the patient almost can take full-range early activities upon a surgery. A threaded end of the first insertion body is fixedly connected to the humeral head to realize fixed connection between the repair device and the humeral head. The second insertion body is connected to the first insertion body in an adjustable manner.

The invention relates to a brain wave signal acquisition device, belongs to the technical field of medical instruments, and solves the problems that in the prior art, a brain wave signal acquisition device is implanted into the cerebral cortex of a human body through craniotomy, the trauma of a patient is large, the surgical risk is high, and various complications can be caused. The brain wave signal acquisition device comprises a bracket main body, an electrode plate and a conductive wire; the stent body is of an open curled cylindrical structure composed of a plurality of grid units, openings are formed in the two axial ends of the stent body, and gaps are formed in the curled butt joint positions on the side wall face of the stent body. The electrode plates are arranged on the grid units; the conductive wire is wound on the stent main body, one end of the conductive wire is connected with the electrode plate, and the other end of the conductive wire is wound to the near end of the stent main body. The brain wave signal acquisition can be realized without a craniotomy operation, so that the trauma to a patient is small, and the operation risk is obviously reduced.

Provided are devices and methods for preventing an episode of incontinence in an individual in need thereof. The devices comprise a sensor and a stimulator electrode that can be implanted into the body of the individual. Once the device is implanted in the individual, the sensor of the device senses a parameter that is associated with a response from the individual that is intended to prevent an episode of incontinence. Then, the device provides an electrical stimulation using the electrode that, together with the response, helps to prevent the episode of incontinence.

The present invention discloses a vascular pressure buffering device, which includes a support grid in a tubular structure, a compensation tube and a buffering part. The compensation tube is sleeved on the inner wall of the support grid. The compensation tube includes an inlet tube and an outlet tube, and the inlet tube and the outlet tube are sleeved inside the support grid at intervals. The buffering part includes a first buffer, a second buffer and an elastic tube. The number of the first buffers is multiple, and multiple first buffers are all arranged on the inner wall of the inlet tube. The second buffer is slidably arranged on the inner wall of the outlet tube. The elastic tube is arranged between the inlet tube and the outlet tube, and one end of the elastic tube is connected to the inlet tube and the other end is connected to the outlet tube. This vascular pressure buffering device implants the support grid into the blood vessel to support the blood vessel wall, and buffers and offsets the pressure brought by the high-pressure blood flow three times through the buffering part, thereby reducing the blood pressure in the high-pressure blood flow, reducing the potential threat brought by hypertension to patients, and ensuring the stability of blood pressure.

The invention discloses a fixed stress release hole load reduction method in a soft foundation layer, which comprises the following steps: drilling a hole in the soft foundation layer between a pile foundation and a pile load, implanting a fixed stress release hole device, arranging a soil guide hole towards the pile load during implantation, regularly cleaning a soil body flowing into the device through the soil guide hole, and carrying out stress release on the fixed stress release hole device; and grouting in the pipe when deformation monitoring of the pile foundation shows deformation convergence. When a foundation soil body generates lateral displacement under the loading effect, the foundation soil body can enter the fixed stress release hole device through the soil guide hole, and a regular cleaning and digging maintenance mechanism is matched to ensure that the stress release channel is continuously in an effective working state. According to the invention, the technical bottleneck of no stress release effect caused by easy collapse of a traditional stress release hole or stress unloading failure after the stress release hole is filled with a lateral moving soil body is fundamentally solved, so that the hollow pipe array can be used as a permanent barrier for blocking stacking lateral displacement; and long-term passive bearing safety of pile foundations of adjacent buildings (structures) is ensured.

The invention relates to the field of medical health, in particular to a breathing throw pillow used for collecting abdominal breathing signals. Comprising a throw pillow case and at least one bag body which is fixed on the throw pillow case and is made of an elastic material, an accommodating space for accommodating the embedded sensing device is formed between the bag body and the throw pillow case, and a notch for embedding the embedded sensing device is formed between the bag body and the throw pillow case; the size of the notch is smaller than that of the short edge of the embedded sensing device; an anti-skid dot matrix is arranged on the throw pillow case in the accommodating space, and the density of the anti-skid dot matrix is gradually reduced from the periphery to the central area; correspondingly, the four corners and the center of the bottom of the rectangular bearing frame are each provided with a spherical groove, and the height of the anti-skid points, corresponding to the spherical grooves in the bearing frame, in the anti-skid dot matrix is larger than that of the anti-skid points in other positions in the anti-skid dot matrix. According to the invention, the sensor can be detachably mounted in the bolster by means of the supporting frame.

The present disclosure relates to methods of treating, preventing, or modulating diabetes in a patient in need thereof using a device for transplanting cells into a host body, specifically a method of treating diabetes in a patient in need thereof, comprising: implanting a device in the patient, wherein the device comprises: a porous scaffold comprising an immunologically compatible polymer mesh forming the walls of at least one chamber, an opening at either or both of a proximal end and a distal end of the chamber, at least one removable, non-porous plug configured to be positioned within the lumen of the at least one chamber, maintaining the device in the patient's body until the device is infiltrated with vascular and connective tissues; and infusing the chamber with cells, wherein at least some of the cells express insulin

A method of implanting a cerebrospinal fluid-access device is provided. The method can include interlocking the device onto a delivery assembly to keep the device fixed longitudinally on the delivery assembly, advancing the delivery assembly into the cerebrospinal fluid space, and releasing the interlock to allow the delivery assembly to be removed while leaving the device implanted in the cerebrospinal fluid.

Methods and apparatus are provided for determining a disengagement status of a patient associated with a mechanical circulation support device. The method includes: receiving a set of signals from the mechanical circulation support device implanted in a heart of a patient; determining, using a computer processor, a set of features based at least in part on the set of signals; providing the set of features as input to a machine learning model trained to output a disengagement state of the patient; and displaying, on a user interface associated with the mechanical cycle support device, an indication of the disengaged state of the patient output from the machine learning model.

A supplemental stent device for endovascular implantation includes a stent and a radiopaque (RO) marker. The stent includes a region of interest adapted to anchor the stent to a branch or windowing of the main stent device. The stent is expandable from a compressed state adapted to advance the auxiliary stent device through the target anatomical structure to an expanded state adapted to implant the auxiliary stent device within the target anatomical structure. The RO marker is located on the region of interest such that the region of interest is identified in a visualization situation. When the region of interest is aligned at a location adjacent the branch or window of the main stent device, the stent is expanded to anchor to the branch or window.

The present invention discloses a pressure relief device implantation kit and a method for using the same. The pressure relief device implantation kit comprises: a cannula, wherein the interior of the cannula is a hollow structure, and a cannula seat is provided at the proximal end of the cannula, a positioning sheath is provided on the inner wall of the cannula seat, and the distal end of the cannula is open; a puncture needle, wherein the puncture needle is sharp at the distal end and can extend further distally from the distal end of the cannula; a solid needle, wherein the distal end of the solid needle is smooth and blunt; a delivery needle, and a pressure relief device. The proximal ends of the puncture needle, the solid needle, and the delivery needle all have needle seats, and each needle seat is provided with a positioning groove that cooperates with the positioning sheath. The puncture needle, the solid needle, and the delivery needle are all configured to be inserted into the cannula. According to the present invention, craniotomy is not required for the patient during treatment, which reduces the difficulty of the operation, the labor intensity of the operator, and the time of the operation. The incision is small, which reduces the burden and pain of the patient, and the pressure relief device can be accurately delivered to the target site.

The present invention generally regards the controlled administration of substances through infusion devices implanted in the human body and more particularly has as its object an implantable infusion device with a chronically implantable trans-intestinal port for the transfer of drugs from ingestible pills to the implanted device.

A system for performing interbody fusion surgery including an expandable intervertebral spacer and specialized instruments for choosing the correct size of implant, implanting the device within the intervertebral space, and for delivery of bone graft or bone substitute to the interior of the implant.

A method for implanting a device into a heart of a mammal may include a fluid conduit leading from an atrium into an aorta. The fluid conduit may also include a pump and a sensor in the atrium for feedback to the controller for operation of the pump. The outflow of the fluid contact may include a diffuser or fairing for managing the type and direction of flow into the aorta.

Augments for implantation of an orthopedic implant device in a bone. A distal end of an outer portion of the augment can have a shape that is configured to generally conform to the shape of a metaphyseal-diaphyseal junction of an intramedullary canal of the bone. Further, a proximal end of the outer portion of the augment has a shape that is configured to generally conform to a shape of the metaphyseal region of the intramedullary canal. Additionally, the shape of the outer portion at the distal end can be separated from the shape of the outer portion at the proximal end by a distance that is approximately equal to the distance between the metaphyseal-diaphyseal junction and the metaphyseal region of the intramedullary canal.

A blood pump system includes a first implantable housing, an implantable blood pump independent from the first implantable housing, and a percutaneous extension. The first implantable housing includes a rechargeable power storage device. The implantable blood pump supplements the pumping function of a heart. The rechargeable power storage device supplies electrical power to the implantable blood pump. The percutaneous extension is coupled to the rechargeable power storage device and adapted to traverse the skin. The percutaneous extension is configured to releasably connect to an external power supply adapted to provide power for recharging or supplementing the rechargeable power storage device to power the implantable blood pump.

Disclosed herein are devices and methods for addressing elevated left-sided filling pressures to mitigate the effects of diastolic dysfunction. The disclosed technologies decrease the temporal increase in blood flow and pressure into the heart from the venous system (which drains from the body). Under exertion, there is a shift of blood from the 'unstressed' reservoir of vasculature to the 'stressed' reservoir. By inhibiting this acute shift of blood from the unstressed reservoir to the stressed reservoir, an undesirable influx of blood volume to the already overloaded left heart can be avoided. Certain embodiments provide ways to maintain or to increase atrial elasticity, or atrial compliance using devices implanted in the left atrium and / or left atrial appendage. This increase or enhancement of atrial compliance enables the atrium to absorb the energy of short bursts of high left atrial pressure.

To provide an ophthalmic device for drug delivery.SOLUTION: An ophthalmic implant for drug delivery is provided. The implant includes a primary intracapsular device coupled to a secondary device. When implanted in a patient's eye, the primary intracapsular device is held in place by the patient's capsular bag, and the secondary device is held in place by the primary intracapsular device. The implant may be inserted in the eye by injecting the primary intracapsular device into the eye either before or after attaching the secondary device to the primary intracapsular device, and subsequently positions the joined secondary device and primary intracapsular device with the primary intracapsular device held in place by the patient's capsular bag and with the secondary device held in place by the primary intracapsular device. The secondary device may be designed to hold a tertiary device that can be implanted and attached at the time of surgery or anytime postoperatively.SELECTED DRAWING: Figure 1

An electronic intraocular device is implantable into the capsular bag of a wearer's eye. In some cases, the intraocular device may include a femtoprojector. The femtoprojector projects images onto the wearer's retina when the electronic intraocular device is implanted in the wearer's eye. Different haptic designs may be used to keep the femtoprojector in position. In some embodiments, an imager is contained in a contact lens worn by the wearer. Images captured by the contact lens imager may be relayed to the intraocular femtoprojector. In some cases, the intraocular device may include an electronic capsular tension ring with a femtoimager. The femtoimager may capture images of the wearer's retina, for example for purposes of monitoring eye health.

The invention provides an intracavitary plugging device and an implantation system thereof, and relates to the field of medical instruments, a main body of the intracavitary plugging device is formed by nesting N layers of self-expanding woven meshes inside and outside in the radial direction, and N is larger than or equal to 2; all the layers of self-expansion woven meshes are subjected to three-dimensional prefabrication forming and can be radially compressed in a constraint state and loaded in the conveying catheter, after the self-expansion woven meshes are released, the N layers of self-expansion woven meshes cooperate to form an overall plugging structure with a blood flow blocking function, and the overall contour of the overall plugging structure is in a spherical shape, an ellipsoidal shape or a bud shape; the near end of the body is provided with a connecting part. The intracavitary plugging device implanting system comprises a conveyor and the intracavitary plugging device, wherein the connecting part arranged at the near end of the main body is connected with the far end of the pushing rod of the conveyor through a detachable connecting structure. The technical problems that in the prior art, when an intracavity plugging device is used for sealing an abnormal channel, a capsular bag or a potential thrombus formation part, operation is complex, operation time is long, and the plugging effect is not ideal can be solved.

Some embodiments of the present disclosure comprise improved systems and methods for monitoring physiological parameters such as intracranial pressure (“ICP”), intracranial temperature, and subject head position. For example, in some embodiments, an implantable apparatus for measuring ICP can be implanted into a subject skull. The apparatus can comprise an implant body having a hermetically sealed chamber housing a gas at a reference pressure, and a pressure conduction catheter having a proximal end and a distal end, wherein the distal end is configured to extend into the brain through a burr hole in the skull and includes a plurality of ports. A barrier can cover the ports of the distal end of the pressure conduction catheter, wherein the barrier and pressure conduction catheter are filled with a number of gas molecules so that the barrier is not in tension in a predefined range of ICPs.