38 results about "Braided suture" patented technology

A suture for a suture anchor or surgical needle. The suture is a tubular sheath defining an empty bore and is braided using biocompatible filaments of the same or different materials. The sheath has a flattened annular cross-section.

An insert-molded suture anchor has a biodegradable polymer body molded around a loop of suture. A tapered end disposed on the proximal end of the body is received into a recess in the distal end of a hand driver. Anchoring ribs are formed along the remaining length of the anchor. The suture is held securely within the anchor body during the insert molding process. The anchor is produced by placing the braided suture within an injection mold, and injecting biodegradable polymer into the mold. Using a preferred plication driver, the suture anchor can be utilized for capsular plication procedures.

An active suture that can be used for both wound closure and the delivery of therapeutic fluids to the tissue surrounding a wound is disclosed. The active suture may include a connector designed to join a fluid source, such as a syringe or conventional IV delivery system, to an internal passageway that is embedded within a braided suture. The internal passageway may be comprised of a fine polymeric tube and is capable of conducting and emitting a fluid into at least a portion of the braided suture and surrounding tissue. The invention enables delivery of an efficacious volume of drug bearing solution on the order of milliliters per day, provides a high level of fluid delivery rate control enabling the physician to start or stop drug administration at his/her discretion, and offers a means of providing more than one type of medication that may be selected post-surgically in accord with unexpected patient symptoms that may arise.

An active suture that can be used for the delivery of therapeutic fluids to the tissue surrounding a wound is disclosed. The active suture may include a connector designed to join a fluid source, such as a syringe, conventional IV delivery system, or infusion pump to an internal passageway that is embedded within a braided suture. The internal passageway may be comprised of a fine polymeric tube and is capable of conducting and emitting a fluid into at least a portion of the braided suture and surrounding tissue. The invention enables delivery of an efficacious volume of drug bearing solution on the order of milliliters per day, provides a high level of fluid delivery rate control enabling the physician to start or stop drug administration at his/her discretion, and offers a means of providing more than one type of medication that may be selected post-surgically in accord with unexpected patient symptoms that may arise.

A suture including a shaft extending longitudinally along a length of the suture, and a plurality of barbs extending outwardly from said shaft. At least one of the barbs is non-symmetrical about a primary plane extending along the longitudinal length of the suture, and bisecting a distal tip of the barb and a center of the shaft.

A self-retaining braided suture comprises a braided suture with tissue retainers formed on the surface such that the suture can engage and retain tissue without knots. The suture includes a plurality of braided fibers which may be covered by a non-braided sheath of a material which enhances the formation, elevation and/or deployment of the retainers. The retainers can be formed so as not to disrupt the braided fibers. The self-retaining braided suture has properties which enhance the tensile strength of the suture while preserving flexibility and durability. Methods for manufacturing and using self-retaining braided suture are also described.

A suture punch system that is capable of directly passing braided suture through tissue in a simple, one-step process. The system includes three principle components: a malleable needle capable of delivering the suture to the tissue, a handheld instrument for grasping tissue and controlling needle placement, and a force-supplying mechanism to supply the force required for needle placement. Needle deformation begins at the tip of the instrument, which beneficially includes a curved segment. As the distal tip of the needle pierces the tissue, it continues its radial path through the tissue. When the proximal end of the needle exits from the instrument, the needle may be radial in shape and traverses an essentially radial path through the tissue. Once the needle has passed entirely through the tissue, it may be retrieved using the jaws of the punch or another instrument.

A suspension system for rejuvenation of a human midface, the suspension system including a first suture material having a first end attached to a first needle, a second end attached to a second needle, and a first primary anchor graft having a plurality of openings through which the first suture material is inserted. The first primary anchor graft may be positioned to be about equidistant between the first end and the second end of the first suture material. The suspension system is adapted to be locatable within the human midface so as to elevate at least one malar fat pad and the first suture material may include a plurality of resistance members located on either side of the first anchor graft. The suspension system may further include a secondary braided suture attached to the first and second needles, and a guide suture inserted through the first primary anchor graft.

The invention provides a device and a method for preparing a sustainable-released antibacterial real-silk braided suture line. The method comprises the following steps of dissolving a macromolecule absorbable material in a corresponding solvent to prepare a solution, and adding the powder of fluoroquinolones into the solution to prepare a coating material for later use; and adding the coating material into a first immersing groove and a second immersing groove of the device for preparing the antibacterial real-silk braided suture line, and performing coating processing on the real-silk braided suture line for at least one time by using the device for preparing the antibacterial real-silk braided suture line, wherein the process of performing coating processing comprises the steps of sequentially allowing the real-silk braided suture line to pass through a first immersing roller, a first pressure roller, a first guide roller, a second immersing roller, a second pressure roller, a second guide roller and a third guide roller, and finally winding the real-silk braided suture line on a roller drum. Aantibacterial agents of the antibacterial real-silk braided suture line are uniformly dispersed in the macromolecule absorbable material and are released gradually with the degradation of the macromolecule absorbable material, so that a sustainable-releasing effect is achieved, and the antibacterial lasting time accords with the healing time of a skin wound.

A novel barbed suture comprises improved retaining strength or anchoring ability within the tissue in both directions of the suture. The barbed suture of the present invention comprises a plurality of barbs which are made of filaments. The ends of the filaments are attached to the main body of the suture thread to form barbs. The barbs are flexible and allow tissue ingrowth. As a result, the barbed suture is allowed to be readily deployed in the tissue with high retaining strength in both directions of the suture. The retaining strength enhances the barbed suture's ability to hold tissue together with improved wound closure or tissue approximation performance.

Provided herein is a braided suture that includes at least three strands. At least one of the strands is comprised of a fiberoptic material. In a preferred embodiment, more than one of the strands is comprised of a fiberoptic material. Also provided is a method of suturing. The method includes the steps of providing a braided suture comprising at least three strands, wherein at least one of the strands is comprised of a fiberoptic material, connecting the suture to a threading device, placing the suture at a predetermined location on a patient's body, and using a light source to illuminate the fiberoptic strand.

Described is an apparatus for transcatheter detachment of a stent from a delivery device. A braided suture with an opening is inserted through a restraining hole in a glide (the opening is secured on one side by a knot or a series of knots) and a release line is inserted through the braided suture opening. The braided suture is thus prevented from pulling through the restraining hole while the release line is through the opening. The braided suture is free to pass through the restraining hole after the release line is pulled out of the opening and thereafter pulled free of stent holes formed through a stent, thereby detaching the stent at a desired location.

The invention discloses a manufacturing method of a two-dimensional braided suture composite material gas cylinder. The manufacturing method comprises the following steps that using a cylinder liner as the core mold, the required woven layer is weaved back and forth on a two-dimensional knitting machine; the multi-layer woven layer prepared in the step one is sewed into a whole through adopting asewing method; a resin is filled according to a required ratio by adopting an RTM molding process, and curing and forming in a curing furnace are carried out; and the cured product is carried out subsequent treatment after demolded. The manufacturing method fully utilizes the advantages of net size forming of two-dimensional weaving; and the sewing method is used to sew the layered fabric into a whole body, which enhances the Z-direction strength and effectively solves the delamination problem of the subsequent composite material application. The method provided by the invention is simple, practical and can effectively improve the quality of the manufactured parts.

The invention relates to a degradation-resisting, good-compatibility and absorbable medical suture line. The suture line is composed of a plurality of threads of braided lines, and comprises a core yarn, a braided layer and an antibacterial coating layer, wherein the braided layer is arranged at the outer side of the core yarn; the antibacterial coating layer is arranged at the outer side of the braided layer; the core yarn comprises a suture line I; the suture line I is prepared from the following raw materials in parts by weight: polyglycolide, carbon fibers and pure natural collagen; the braided layer comprises a suture line II; and the suture line II is prepared from the following raw materials in parts by weight: polyglycolide, carbon fibers, pure natural collagen, mannitol and vanillin. The invention further provides a preparation method of the degradation-resisting, good-compatibility and absorbable medical suture line. The degradation-resisting, good-compatibility and absorbable medical suture line provided by the invention has the following beneficial effects that the suture line is applicable to industrial production, has an extremely good application prospect, is great in tensile strength and is not easy to break; and the suture line has good biocompatibility and degradability, and can be absorbed after being used for suturing so that stitches do not need to be takenout.

A suture tape construct having a first section formed from a fibrous filament that extends from a first end to a second end and has a pair of a one-way protrusions extending therefrom. An anchor is positioned along the suture construct and, when the construct is deployed, is captured between the protrusions. The anchor may be a second section formed from braided suture material that is woven about the first section. The braided suture material can be deployed to form an all suture anchor while protrusions extending from the suture anchor proximately to the location of the deployed suture anchor prevent movement of the second section relative to the first section, thus forming a non-sliding suture tape anchored by the deployed braided material. The anchor may be a threaded anchor having an eyelet that is captured between the protrusions.

A process for improving the knot tensile strength of a braided suture while maintaining its first throw holding characteristics includes the steps of applying a biocompatible co-polymer to the braided suture and then heating the suture to a temperature above the flow point of the co-polymer. An outer coat is applied to the suture after the heating step. The suture may be scoured with a solvent before the co-polymer is applied or the co-polymer may be applied simultaneously with the scouring step. The co-polymer preferably comprises one or more lactones, more preferably, ε-caprolactone and glycolide. This process may be used with bioabsorbable sutures, such as those comprising filaments made of polyglycolide and polylactide.

The invention discloses a medical real silk braided suture line and a preparation method thereof. Firstly, lysine polyester hydrogel is loaded on a real silk braided suture line, and secondly, an antibacterial coating is prepared on the real silk braided suture line loaded with the lysine polyester hydrogel. The medical silk braided suture line has good mechanical property and degradation property, has antibacterial property, achieves stable and lasting antibacterial property, can effectively promote wound healing, and reduces infection of an operation part.

The invention discloses a method for fixing a graft in cruciate ligament reconstruction of the knee joint, which comprises the following steps: (1) braiding and suturing the two ends of the grafted tendon with wires, and selecting two expansion screws; (2) making a femoral tunnel; (3) ) making the tibial tunnel; (4)) threading the guide wire at one end of the transplanted tendon into the guide pin with a coccyx hole, pulling out the guide pin with a coccyx hole and taking out one end of the guide wire, so that the transplanted tendon enters the femoral tunnel and the tibial tunnel; (5) Use tools to push in the expansion sleeve along the femoral bone canal close to the grafted tendon until the tail end of the expansion sleeve enters the femoral bone canal, screw the screws into the expansion sleeve for fixation; (6) use tools to push in the expansion sleeve close to the grafted tendon along the tibial bone canal When the tail end of the expansion sleeve enters the tibial bone canal, screw the screw into the expansion sleeve for fixation. The graft fixation method in knee cruciate ligament reconstruction of the present invention is more conducive to tendon-bone healing, can produce greater fixation strength, and can avoid the disadvantages of host immune response caused by exogenous cells and low transformation efficiency.

The present invention includes a braided suture article adapted to be inserted through or into a tissue so as be able to exert a force on that tissue, the braided suture material adapted to be moved from an extended configuration to a collapsed configuration forming at least two loops extending substantially perpendicular to its threaded length and having a relatively rigid terminal end length that extends substantially perpendicular to the threaded length. The present invention further includes a suture placement device adapted to insert a length of suture material into or through a tissue to a space beyond a rear surface of said tissue so as to maintain said length of suture material, and a method of placing an expanding suture knot into a tissue.

The present disclosure describes surgical anchors and related devices and methods that can be used for surgical bone fracture fixation. Some implementations use a polymeric cored braided suture held in place by anchors on each side of a fracture. In some implementations, the anchors are secured into bone while maintaining high tension (e.g., relative to certain prior art methods) in the suture during the deployment process. Some implementations provide for tensioning (e.g., using a polymeric cored braided suture) to compress the fracture and hold the bone in place, functioning as though the suture has sewn the bone (e.g., fragments or portions) together. This can, for example, provide rigid fixation of a fracture which may be important for healing to occur. The tension preload can provide compression to maintain fixation in the face of tensile and shear loads applied to the bone (e.g., as a result of movement and weight bearing).

The invention discloses a head and face three-dimensional lifting method which comprises the steps that an incision is made at the cranial top position, the skin is cut open, a puncture needle is adopted for conducting thread embedding operation, a needle head of the puncture needle is provided with a threading hole used for carrying weaving threads used for thread embedding operation, a first weaving thread is adopted and arranged on the puncture needle in a penetrating mode, and thread embedding on the left side of the head is conducted; a second braided wire is adopted and arranged on the puncture needle in a penetrating mode, wire embedding is conducted on the right side of the head, the braided wires on the left side and the right side of the head are symmetrically tightened, the region surrounded by the braided wires is pushed and pressed by hands so as to lift the cap-shaped aponeurosis and the superficial temporal fascia, and after the braided wires are knotted, a knot is hidden under the skin. According to the method, overall lifting of the superficial temporal fascia and the cap-shaped fascia can be effectively achieved, the maintaining time is long, a stable lifting fixing point can be provided for the facial SMAS layer line sculpture lifting operation, and the method also has a certain pulling and lifting effect on the facial SMAS layer.