Patent classifications
A61B2017/00964
Compressible adjuncts with drug release features
Compressible adjuncts for use with a staple cartridge are provided. In one exemplary embodiment, a compressible adjunct includes a non-fibrous adjunct material formed of at least one fused bioabsorbable polymer and configured to be releasably retained on a cartridge and configured to be delivered to tissue by deployment of staples in the cartridge. The adjunct material includes a lattice macrostructure having a plurality of drug delivery microstructures formed in the lattice macrostructure, in which each drug delivery microstructure has drug disposed therein. The plurality of drug delivery microstructures are configured to encapsulate the drug to thereby prevent drug release until the plurality of drug delivery microstructures are at least one of thermally ruptured while the adjunct material is stapled to tissue and mechanically ruptured in response to at least one of clamping, stapling, and cutting of the adjunct material. Stapling assemblies for use with a surgical stapler are also provided.
VASO-OCCLUSIVE DEVICES WITH IN-SITU STIFFENING
A vaso-occlusive device is constructed out of dissimilar metallic materials that are in contact or otherwise in close proximity with one another, thereby causing the device to undergo galvanic corrosion when exposed to an electrolytic medium, such as blood or other body fluid, wherein one of the dissimilar metallic materials is zirconium or zirconium alloy to create a corrosive product including zirconia having a relatively high hardness, a relatively high fracture toughness, and a relatively high stability when the device is implanted in a vasculature site, such as an aneurysm.
Anisotropic Materials in Medical Devices
A system and method for improving upon an ability of a surgeon to repair traumatic bone injury using new materials, components, and structures. A structure may be used as an implant or a component of an external fixator for a fractured long bone with that structure having anisotropic and viscoelastic properties, such as through additive manufacturing techniques.
KNITTED TISSUE SCAFFOLDS
Staple cartridge assemblies for use with surgical stapling instruments and methods for manufacturing the same are provided. Scaffolds for use with a surgical staple cartridge and methods for manufacturing the same are also provided.
DEGRADABLE MAGNESIUM ALLOY IN-SITU COMPOSITE ANASTOMOTIC STAPLE AND A PREPARATION METHOD THEREOF
The present disclosure relates to the technical field of biomedical materials, more particularly to a degradable magnesium alloy in-situ composite anastomotic staple and a preparation method thereof. The anastomotic staple, with a composite structure, is mainly composed of Mg—Zn—Nd magnesium alloy with high strength and good plasticity (internal part), and corrosion-resistant MgF.sub.2 (external part), and is formed by in-situ synthesis of MgF.sub.2 with the outer layer of Mg—Zn—Nd magnesium alloy anastomotic staple. The magnesium alloy composite anastomotic staple provided by the present disclosure has good plastic deformation ability and mechanical strength, a low degradation rate, and a high biosafety level, which can meet the in-vivo implantation requirements. In addition, it can gradually degrade in vivo after achieving the medical effects in vivo, avoiding a second operation for removal.
Compressible Adjuncts with Different Behavioral Zones
Compressible adjuncts for use with a staple cartridge are provided. In one exemplary embodiment, the compressible adjunct includes a non-fibrous adjunct material formed of at least one fused bioabsorbable polymer. The adjunct material is configured to be releasably retained on a staple cartridge and is configured to be delivered to tissue by deployment of staples in the cartridge The adjunct material includes a lattice macrostructure having at least one drug contained therein. The lattice macrostructure is formed of a plurality of unit cells, in which each unit cell is configured to eject a predetermined amount of drug from the adjunct material and the predetermined amount of the drug being a function of a compression profile of the respective unit cell.
Sutures with Coatings for Detecting and Reporting Tissue Infection
The present invention is directed to an implantable medical device, comprising: a device body, with at least a portion of said body coated by a sensing coating that comprises an echogenic material or a radiopaque material, or combinations thereof, said sensing coating configured to dissolve or swell in presence of at least one infection biomarker; wherein a portion of said sensing coating is covered by a protective film, forming a protected portion, said protected portion configured not to dissolve or swell in presence of said biomarker and methods of detecting presence of biomarkers in the vicinity of an implanted medical device.
Compressible knitted adjuncts with varying fiber features
Stapling assemblies are provided and can include a cartridge and a knitted adjunct configured to be releasably retained on the cartridge. The adjunct includes a first compression zone formed of at least first fibers and second fibers that are interconnected to the first fibers and are arranged in a generally first columnar configuration such that the first compression zone has a first compression strength, and a second compression zone formed of at least the first fibers and third fibers that are different than the second fibers, in which the third fibers are interconnected to the first fibers and arranged in a generally second columnar configuration such that the second compression zone has a second compression strength, in which the first compression strength is different than the second compression strength such that the adjunct has a variable compression strength.
FLEXIBLE SYSTEM FOR DELIVERING AN ANCHOR
A system and associated method for manipulating tissues and anatomical or other structures in medical applications for the purpose of treating diseases or disorders or other purposes. In one aspect, the system includes a delivery device including a flexible portion that is suited to access target anatomy. The flexibility of an elongate portion of the delivery device can be varied. Additionally, the delivery device can include structure that maintains the positioning of the delivery device in patient anatomy.
IMPLANTABLE SPHINCTER ASSISTANCE DEVICE WITH DUAL ZONE CONTROLLED RATE OF CONSTRICTION FORCE
An apparatus includes a plurality of beads. Each bead includes a housing and a magnet positioned within the housing. The apparatus also includes a plurality of interconnection elements. Each interconnection element movably joins together a corresponding pair of beads. The plurality of beads and the plurality of interconnection elements are sized and configured to form an expandable loop around an anatomical structure in a patient. The expandable loop is configured to apply a constrictive force to the anatomical structure. The constrictive force has a first rate of change when a dilation ratio of the expandable loop is within a first range, a second rate of change when the dilation ratio of the expandable loop is within a second range, and a third rate of change when the dilation ratio of the expandable loop is within a third range.