11 results about "Braided suture" patented technology

A braided suture fiducial metallic marker system includes a braided suture fiducial metallic marker system includes a metallic marker, a multiplicity of suture threads (absorbable or non-absorbable), braided with one another and encapsulating the marker, and a needle disposed at a distal end of the multiplicity of threads and a needle disposed at an opposite distal end. In this regard, a portion of the braided suture threads in which the marker is encapsulated may be visually demarcated with a contrasting color. As well, the marker may define a cavity which may in turn, contain a radioactive material. As another option, a single one of the multiplicity of suture threads may extend through one end of the cavity to another end of the cavity so that the single one of the multiplicity of threads is braided with others of the multiplicity of suture threads.

A single delivery needle configuration accommodates multiple soft tissue fixation devices at once. The configuration eliminates the need to reload a fixation delivery device when multiple fixation devices are required. Further, this configuration can include different variations of fixation devices. In embodiments, these fixation devices are typically manufactured from standard braided polyester suture that is cut into segments with predetermined lengths. This design allows the braided suture segments to be preloaded with a suture threaded through the preloaded braided suture segments with a slip knot placed on the proximal end of a first braided suture segments (e.g., distal fixation device). The tailing suture from the slip knot passes through the second, third, fourth braided suture segments, or any required quantity of braided suture segments that have been preloaded into the delivery device. The suture passes completely through a delivery device.

The invention discloses a tendon rupture auxiliary fixing device, and relates to the technical field of tendon repair, the tendon rupture auxiliary fixing device comprises a fixing nail and two fixing assemblies, each fixing assembly comprises a braided wire belt and two fixing parts, and the two fixing parts are connected through the braided wire belt; the fixing parts in one fixing assembly and the fixing parts in the other fixing assembly are arranged in a one-to-one correspondence mode, and the corresponding fixing parts are connected through the fixing nails; the two fixing assemblies are used for being arranged on the two sides of the tendon fracture position respectively, the fixing nails are used for penetrating through the tendon, the two ends of each fixing nail are connected with the two corresponding fixing parts respectively, and the braided wire belts are used for corresponding to the tendon fracture position. The auxiliary fixing device can perform auxiliary fixing on a fracture part after tendon suture, effectively prevents secondary fracture, and promotes functional recovery of a patient.

A single delivery needle configuration accommodates multiple soft tissue fixation devices at once. The configuration eliminates the need to reload a fixation delivery device when multiple fixation devices are required. Further, this configuration can include different variations of fixation devices. In embodiments, these fixation devices are typically manufactured from standard braided polyester suture that is cut into segments with predetermined lengths. This design allows the braided suture segments to be preloaded with a suture threaded through the preloaded braided suture segments with a slip knot placed on the proximal end of a first braided suture segments (e.g., distal fixation device). The tailing suture from the slip knot passes through the second, third, fourth braided suture segments, or any required quantity of braided suture segments that have been preloaded into the delivery device. The suture passes completely through a delivery device.

The invention discloses a self-locking suture line and a tension regulator, and relates to the field of medical instruments.The self-locking suture line comprises a self-locking suture assembly, the self-locking suture assembly comprises a suture line body, a suture line weaving groove is formed in the suture line body, and a plurality of weaving lines are arranged in the suture line weaving groove; a grading barb unit is arranged outside the suture line main body, a suture needle is arranged at one end of the suture line main body, and a biodegradable coating is sprayed on the surface of the suture line main body. According to the self-locking suture line and the tension regulator, through the height increasing design of the grading barb units, the self-locking suture line and the tension regulator can adapt to different tissues from low density to high density, the problem that a traditional suture line is not firmly anchored in a single tissue or damages the tissue is solved, the application scene is expanded, and the tension of the suture line can be automatically regulated through the tension regulator.

Tensionable, knotless, self-locking surgical constructs and methods for surgical repairs are disclosed. A soft suture anchor and a flexible strand (flexible coupler) are provided integrally, as a one-piece machine taper construct. The repair system can include one or more shuttle / pull devices. The suture comes out of the cannulated sheath and braids to a smaller diameter round suture which is then passed back through the sheath. The braided suture may be furcated or branched to provide a plurality of passing sutures.

The present application is about a preparation method of silk suture based on enzymatic grafting of chitosan oligosaccharide-protocatechuic acid, and relates to the field of medical antibacterial textile materials. In the present application, the chitosan oligosaccharide modified with protocatechuic acid is coupled with the degummed silk fiber by laccase promotion, and then the modified silk fiber is formed into a braided wire using a braiding machine, and finally the silver nanoparticles are stably deposited on the silk braided wire by amino-mediated reduction of silver ions, thereby achieving the excellent antibacterial properties of the silk braided wire. In this case, the antibacterial properties of the silk suture are improved by protocatechuic acid and chitosan oligosaccharide, and more silver nanoparticle deposition sites are provided; it is achieved that a suture can be completed on a medical braiding machine, the process adjustment is convenient, the thickness and length of the product are highly adjustable, no toxic chemical reagents are used, personal health is guaranteed, and it can be safely and widely used in medical, health and other fields.

The present application relates to the technical field of biological materials, in particular to an absorbable serrated material and a preparation method thereof.The present application comprises the following steps: S1: taking pretreated mulberry silk braiding thread, immersing it in a double-bonded polycaprolactone melt, performing encapsulation treatment, and then cutting serrations on the surface of the thread by using a serration cutter to obtain serrated suture thread; S2: adding curcumin ethanol solution into a mercapto silk fibroin solution, mixing uniformly to obtain a mixed solution, freezing, thawing at room temperature, obtaining a nanoparticle emulsion, and then centrifuging and freeze-drying to obtain composite microspheres; S3: uniformly mixing the composite microspheres, mercapto collagen, a photoinitiator LAP and a phosphate buffer solution to obtain a coating solution; S4: immersing the serrated suture thread in the coating solution, performing ultraviolet light irradiation, washing and drying to obtain the absorbable serrated material, which has excellent mechanical properties and antibacterial effect.

The invention relates to the technical field of biological materials, in particular to an absorbable zigzag material and a preparation method thereof. The preparation method comprises the following steps: S1, taking a pretreated mulberry silk woven thread, immersing the pretreated mulberry silk woven thread in a double-bond polycaprolactone melt, carrying out encapsulation treatment, and cutting saw teeth on the surface of the thread body through a gear cutting machine to obtain a saw-tooth-shaped sewing thread; s2, adding an ethanol solution dissolved with curcumin into the sulfhydrylated silk fibroin solution, uniformly mixing to obtain a mixed solution, freezing, then unfreezing at room temperature to obtain a nanoparticle emulsion, and centrifuging and freeze-drying to obtain composite microspheres; s3, uniformly mixing the composite microspheres, thiolated collagen, a photoinitiator LAP and a phosphate buffer solution to obtain a coating solution; and S4, immersing the serrated suture in the coating solution, carrying out ultraviolet irradiation, washing, drying and shaping to obtain the absorbable serrated material which has excellent mechanical properties and antibacterial effects.

The present disclosure includes a single delivery needle configuration which can accompany multiple soft tissue fixation devices at once. The configuration eliminates the need to reload a fixation delivery device when multiple fixation devices are required. Further, this configuration can include different variations of fixation devices. In embodiments, these presently disclosed fixation devices are typically manufactured from standard braided polyester suture that is cut into segments with predetermined lengths. This design allows the braided suture segments to be preloaded with a suture threaded through the preloaded braided suture segments with a slip knot placed on the proximal end of a first braided suture segments (e.g., distal fixation device). The tailing suture from the slip knot passes thru the second, third, fourth braided suture segments, or any required quantity of braided suture segments that have been preloaded into the delivery device. The suture passes completely thru a delivery device.

Tensionable, knotless, self-locking surgical constructs and methods for surgical repairs are disclosed. A soft suture anchor and a flexible strand (flexible coupler) are provided integrally, as a one-piece machine taper construct. The repair system can include one or more shuttle / pull devices. The suture comes out of the cannulated sheath and braids to a smaller diameter round suture which is then passed back through the sheath. The braided suture may be furcated or branched to provide a plurality of passing sutures.