318 results about "Biocompatible material" patented technology

An implantable prosthesis for preventing, reinforcing and / or repairing anatomical defects, including parastomal hernia that may occur after forming a stoma or an ostomy opening, such as parastomal hernia formed in conjunction with ileostomy or colostomy. The prosthesis may include a body made of a biocompatible material having a preformed three-dimensional channel configured to receive a portion of a lateral intestinal tract created in conjunction with parastomal hernia repair or ostomy. An anti-adhesion barrier may be located on the inner side of the channel to isolate the portion of the lateral intestinal tract from the tissue permeable surface of the body to reduce or eliminate potential adhesion between the body and the lateral intestinal tract. A portion of the channel may include a flared section extending inwardly from the outer periphery to reduce pressure of the portion of the lateral intestinal tract at the open end of the channel.

The present disclosure includes fixation devices, such as an orthopedic screw or implant, that comprises one or more porous elements or fenestrations to aid in osteo-integration of the fixation device. The fixation device may be additively manufactured using biocompatible materials such that the solid and porous aspects of the screw are fused together into a single construct. In yet another aspect, the fixation device comprises at least a portion or section incorporating a porous structure, which enables bony ingrowth through the porous section / portion of the screw, and thereby facilitates biocompatibility and improve mechanical characteristics. Methods for using the fixation device are also described herein.

Systems and methods for implanting a shunt for regulating blood pressure between a patient's left and right atria are provided. The shunt comprises an anchor having a neck region, first and second end regions, and a conduit affixed with the anchor formed of a biocompatible material that is resistant to transmural and translation tissue ingrowth and that reduces a risk of paradoxical embolism. The shunt may be advanced through the sheath until the first region protrudes from the sheath and self-expands within the left atrium. The shunt and the sheath may then be retracted until the first region contacts the left side of the atrial septum. The sheath may further be retracted until the counterforce exerted by shunt tension on the atrial septum overcomes the friction of the retained portions of the shunt such that the second region is exposed from the sheath and self-expands within the second atrium.

The exoskeleton (10) for assisting surgical positioning is made of biocompatible material and formed to be substantially form-preserving. The exoskeleton (10) comprises a shell (11) having a coupling surface (15b) fitting to at least a part of a surface of an organ to be operated, and a guiding channel (13) is formed in the shell (11) at a predetermined position, said guiding channel having a predetermined orientation with respect to said shell and a predetermined cross-sectional area for directing a surgical tool to the organ to be operated.

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).

The invention relates to the technical field of dental oral treatment, and discloses a repair method for treating periodontitis by using dental pulp stem cells, which comprises the following steps: S1, extracting dental pulp tissues from the oral cavity of a patient; s2, obtaining dental pulp stem cells; s3, culturing the dental pulp stem cells under specific conditions; s4, inducing the dental pulp stem cells to differentiate in the direction of osteogenesis, chondrogenesis or periodontal ligament cell formation; s5, transplanting the differentiated dental pulp stem cells to a periodontitis injury area of the patient, and using a biocompatible material; s6, applying a proper local stimulation means around the cell transplantation area; s7, by applying anti-inflammatory drugs locally or systemically, local immune response and inflammatory response are retarded, and repair and regeneration of periodontium are promoted. The problems that an existing treatment method is not lasting in effect, long in recovery period and the like are solved, the damaged periodontium is repaired through the dental pulp stem cells, the treatment effect can be remarkably improved, and the dental pulp stem cells have high clinical application value.

Chronic pain management can be achieved by electrically anesthetizing a peripheral nerve with on-demand electrical nerve block (OD-ENB). OD-ENB can be provided by an implantable capsule. Externally, at least a portion of the capsule can be constructed of a conductive membrane and the rest of the capsule comprises a biocompatible material. A blocking electrode contact, a return electrode contact, and a powering / communication component can be within the capsule. The blocking electrode contact can deliver a direct current (DC) through a portion of the conductive membrane to block conduction in the neural tissue to provide the OD-ENB. The return electrode contact can receive a return current from the neural tissue through another portion of the conductive membrane. The powering / communication component can communicate with one or more external components located external to the patient's body to receive a power signal. Notably the capsule has no internal battery.

The present disclosure provides a composition comprising a first polymer having a high intrinsic viscosity [η] of at least 500 ml / g and a second polymer having a low intrinsic viscosity [η] lower than that of the first polymer and less than 1800 ml / g. More specifically, the present disclosure provides a hydrogel and a drug formed from the composition, and a method for producing a hydrogel.

A smart contact lens includes a contact lens, a nanostructures layer, a first sensor, a connector, and a smart module. The nanostructures layer may be anti-bacterial. The smart contact lens may be worn on an eye or may be implanted within an eye. The nanostructures layer is fabricated by depositing a colloidal dispersion onto an electrostatically-coated substrate. The colloidal dispersion is then removed and nanoholes are etched. The electrostatic coating is removed and a biocompatible material is spin-coated onto the substrate. Upon removal, a quasi-randomly distributed nanostructures layer forms.

An prosthetic endcap device for amputated bone comprises an annular body with an expansion shield and integrated fixation elements. The device features a trabeculated surface for tissue integration, multiple transosseous holes for screw fixation, and an intramedullary hole for bone attachment. The expansion shield extends 5-10 mm radially with a bulbous profile at 10-45 degrees. Key dimensions include 3-5 mm body thickness, 15-40 mm height, and 1-2 mm diameter transosseous holes. Construction uses biocompatible materials including titanium alloys and PEEK. The device can connect to a second endcap via adjustable rods for dual-bone applications. Additional features include radiopaque markers, longitudinal grooves for bone ingrowth, and myodesis holes for soft tissue attachment. This innovation addresses amputation challenges with adaptable fixation and growth accommodation.

A biocompatible member according to an embodiment is a biocompatible member including multiple fibers including a biocompatible material. Mutually adjacent fibers among the fibers are covalently bonded at multiple locations in an extension direction of the fibers.

The present disclosure is directed to ablative devices comprising biocompatible materials in the form of a mesh to provide porosity to allow for the conveyance of conductive fluid to target tissue to be ablated. The mesh also increases the durability of the biocompatible material, reducing the amount of biocompatible material needed for both reusable devices and disposable ablative devices, such as ablative forceps and ablative probes.

Apparatus and methods for repairing a cardiac valve, e.g., a tricuspid valve, are provided. The apparatus may include a prosthetic device coupled to an elongated support coupled to a stent configured to be implanted within a vessel, e.g., the superior vena cava, to suspend and maintain the prosthetic device within the cardiac valve. The support may include a proximal, delivery portion detachably coupled, in a delivery state, to a distal, implantable portion coupled to the prosthetic device. The prosthetic device may be formed of biocompatible material coupled to a frame, and may have prosthetic leaflets that allows blood to flow therethrough in one direction during diastole, but prevents blood regurgitation during systole. The stent further may include features configured to resist migration of the stent within the vessel, as well as to prevent in-folding of the stent during deployment.

The invention relates to the technical field of periosteal repair, and particularly discloses a suture anchor for periosteal cartilage defect repair and a using method thereof.The suture anchor comprises at least two anchor bodies, the head of each anchor body is a pointed cone part, and a suture blind hole is formed in the tail of each anchor body; at least one group of threading rods which are arranged at intervals with the bottoms of the threading blind holes are arranged in the threading blind holes; the at least one tail line penetrates through the threading blind hole of the anchor main body; and the anchor main body and the tail line are made of biocompatible materials. After the tail line is tightened, irreversible fixation is achieved through an automatic locking structure, postoperative tail line loosening or periosteum displacement is avoided, and the cartilage regeneration effect is improved.

The invention relates to a muscle membrane intended to be affixed to a muscle of a human or animal body, the membrane being capable of at least partially surrounding the muscle, the muscle comprising fibres covered with an outer tissue, the positioned membrane having a shape that is identical to that of the muscle. The membrane is characterised in that it exhibits anisotropic behaviour so as to reproduce the mechanical behaviour of the muscle, the membrane comprising: -a matrix designed in a biocompatible material having an elasticity similar to that of the outer tissue of the muscle, -one or more reinforcing strips rigidly attached to the matrix, each strip being designed in a biocompatible material having an elasticity similar to that of the fibres it covers and each strip being oriented according to membrane stiffening requirements and according to the expected muscle correction.

An apparatus includes an electrically conductive housing configured to be implanted beneath a skin portion of a recipient's body. The apparatus further includes a transducer on or within the housing. The transducer is configured to receive and / or to generate vibrations. The apparatus further includes an electrically insulative and biocompatible material overlaying the housing. The material is configured to electrically insulate the housing and the transducer from the recipient's body. The apparatus further includes at least one vibration conduit configured to be in contact with the recipient's body and to transfer the vibrations between the recipient's body and the transducer. The at least one vibration conduit includes a first portion covered by the material and a second portion not covered by the material.

The invention discloses a phototherapy device, which comprises a flexible substrate, a water-blocking oxygen layer, a light-emitting layer, a packaging layer and a biocompatible material layer, wherein the flexible substrate, the water-blocking oxygen layer, the light-emitting layer and the packaging layer are sequentially stacked; the biocompatible material layer is arranged on one side, far away from the water-blocking oxygen layer, of the flexible substrate and / or on one side, far away from the light-emitting layer, of the packaging layer; the thickness of the biocompatible material layer is smaller than or equal to a first set value, and the Young modulus of the biocompatible material layer is smaller than or equal to a second set value. According to the embodiment of the invention, the film layer can be prevented from being broken or delaminated in the bending process of the phototherapy device, the bending performance of the phototherapy device is improved, the biocompatibility of the phototherapy device is improved, and adverse reactions such as allergy and poisoning of a user in the phototherapy process are prevented.

An implantable marker for marking an intracorporeal tissue region of an animal or human, including at least one strand produced from biocompatible material and which has a three-dimensional shape impressed during a shaping process. The strand adopts the three-dimensional shape after cessation of an external mechanical constraint that forced the strand to adopt a compacted three-dimensional shape. The three-dimensional shape impressed upon the strand comprises at least two fixed strand eyelets with each eyelet being formed by at least one helical winding of the strand and having at least one of shape and relative spatial position being different in the compacted three-dimensional shape forced upon them by the external mechanical constraint and the three-dimensional shape adopted after cessation of the mechanical constraint.

To provide a composition containing at least one or more polymers capable of forming hydrogel, as well as methods of manufacturing and using the hydrogel.SOLUTION: For example, a composition can include one or more hydrogel-forming polymers having an intrinsic viscosity [η] (e.g., as measured by an Ubbelohde viscometer) of at least 3 dL / g in the composition. A concentration CT of the hydrogel-forming polymer in the composition can be at most about 5 mg / ml. More specifically, the present disclosure provides compositions that include polymers (e.g., biocompatible polymers) capable of forming soft hydrogels, and methods of making and using the same.SELECTED DRAWING: None

A nanoparticle vaccine composition includes a shell including one or more amphiphilic molecules and one or more hapten molecules, where at least one amphiphilic molecule is conjugated to the hapten molecule, and a substantially hydrophobic core including an immunogenic protein, a vaccine adjuvant, one or more inert biocompatible materials, or a combination of two or more thereof, where the core is encapsulated in the shell to form a nanoparticle.

A trocar sleeve includes a cannula having a distal end and a proximal end; a housing having a distal end and a proximal end, the proximal end of the housing being attached to the distal end of the cannula; and a lumen extending from the distal end of the cannula to the proximal end of the housing, where the cannula and the housing are made of a biocompatible material designed to tolerate a plurality of disinfection cycles.

The invention relates to an antibacterial contact lens silicon hydrogel composite material and a preparation method thereof, and belongs to the technical field of silicon hydrogel materials, and the preparation method comprises the following steps: combining a natural compound with a biocompatible material to obtain a composite material; combining the composite material with a zwitterionic polymer to obtain an antibacterial reinforced material; the preparation method comprises the following steps: mixing a siloxane oligomer, an antibacterial reinforcing material, a hydrophilic monomer, a small molecular silicon monomer, a thermal initiator and a cross-linking agent, and carrying out polymerization reaction to obtain the antibacterial contact lens silicon hydrogel composite material, according to the technical scheme, the natural compound is combined with the biocompatible material, so that the antibacterial property and the stability of the silicon hydrogel composite material can be effectively improved; the composite material is combined with the zwitterionic polymer, so that the hydrophilicity and moisture retention of the silicon hydrogel composite material can be improved, the antibacterial performance of the silicon hydrogel composite material is further improved, and the comprehensive performance of the antibacterial contact lens silicon hydrogel composite material is generally improved.

Wound dressings and methods for treating a wound are provided. The wound dressing can have an environment-facing side that includes a biocompatible material having a polymer crosslinked with an antimicrobial effective amount of a NO-donor and a wound-facing side including a biocompatible resinous matrix and an antifibrinolytic agent. The wound dressing can promote fibrin formation and rapid platelet aggregation, and has antimicrobial properties. The dressing can be applied directly to the wound.

The invention discloses a kirschner wire sleeve device for muscle layer expansion, which relates to the technical field of orthopedic surgery and comprises a kirschner wire, an expansion sleeve, a protective layer and a traction rod. The expansion sleeve is composed of a support and an expansion layer, a guide ring is arranged in the middle of the support, symmetrical connecting frames are arranged on the outer side of the guide ring, the expansion layer is sleeved outside the guide ring, and one end close to a skeleton is of an involute pipeline structure. After the Kirschner wire fixes the bone, the guide ring slides towards the bone along the Kirschner wire, the involute pipeline structure of the expansion layer enters the space between the Kirschner wire and the muscle layer, and the muscle layer is pushed away outwards to form an operation space. The protective layer can reduce direct friction between the muscle layer and the expansion layer, and the lubricant arranged in the protective layer can assist operation; the traction rod can stably control the expansion layer to be opened. The device is made of a biocompatible material and is provided with a buffer structure, the operation space can be flexibly adjusted, the operation safety, adaptability and efficiency are effectively improved, and the use pain point of a traditional kirschner wire sleeve device is solved.

A system for managing female incontinence includes a body of biocompatible material configured to fit between the labia minora and the vestibule floor, the body having a surface configured to occlude the urethral meatus, an adhesive carried on at least a first portion of the surface and configured to provide a sealing engagement between the body and the urethral meatus, and a substance carried by at least one of the body and the adhesive and configured for controlling the odor of the general vaginal-urethral area of a female.

The present invention relates to a photocurable composition for manufacturing a patient-customized biliary stent by using a 3D printer, and a patient-customized biliary stent using same. A conventional photocurable composition for a 3D printer is hard and cannot be used as a biliary stent, but the photocurable composition for a 3D printer, of the present invention, can exhibit physical properties at levels enabling use as a biliary stent, and can be manufactured, using biocompatible material properties, as a stent customized for a patient requiring a biliary stent procedure.

A photocurable formulation usable in additive manufacturing a three-dimensional object is disclosed. The formulation features, in at least a portion thereof, a biological or a biocompatible material, the photocurable formulation comprising a photoinitiator, a photocurable biological or biocompatible material, and a carrier, the formulation further comprising at least two photocurable polymeric materials. Implants comprising same are also disclosed.

Implants including stitching patterns that overlap to produce a corner-locked stitch pattern. An implant may include a substrate including a biocompatible material a reinforcing mesh sewn into the substrate. The reinforcing mesh may include a corner-stitch pattern that includes a first lock-stitch pattern and a second lock-stitch pattern. The first lock-stitch pattern may include a first upper thread and a first lower thread that interlace at a first thread interlace point. The second lock-stitch pattern may include a second upper thread and a second lower thread that interlace at a second thread interlace point. The second lock-stitch pattern may overlap the first lock-stitch pattern such that the second upper thread and the second lower thread envelop the first upper thread and the first lower thread adjacent to the first thread interlace point and the second thread interlace point.

A microelectrode probe for implantation in soft tissue, comprising a sheath of flexible polymeric material divided by a wall into a distal and a proximal compartment, said distal and proximal compartments being filled with a matrix of biocompatible material dissolvable or degradable in aqueous body fluids, and comprising a centrally disposed electrically conductive core passing through the wall and attached to it. The core is insulated at its proximal portion, from which it extends to a holder for attachment to tissue other than said soft tissue. The sheath and the core extending distally from said holder are embedded in a kindred additional matrix. The invention also discloses a method for its manufacture, an array comprising two or more microelectrode probes and a microelectrode probe for incorporation into the array and a method for the manufacture of the array.