28 results about "Barbed suture" patented technology

The invention relates to the technical field of suture line processing equipment, and particularly discloses a cutting device for a barb suture line and a barb cutting technology.The cutting device comprises a base, a line inlet guide mechanism, a barb cutting mechanism and a line outlet guide mechanism are arranged at the two ends of the base respectively, and the barb cutting mechanism comprises a carrier plate; a center hole for a suture line to pass through is formed in the carrier plate, two cutting clamping seats are symmetrically arranged on the carrier plate located on the two sides of the center hole, linear grooves are formed in the side faces, close to each other, of the two cutting clamping seats, and cutting knife assemblies are arranged on the cutting clamping seats. One end of the cutting knife assembly extends into the linear groove through a groove formed in the cutting clamping seat; according to the cutting device for the suture line with the barbs, continuous and high-speed barb cutting of the suture line is achieved, the production efficiency is remarkably improved, the barbs formed after cutting can be outwards kept at a large unfolding angle, and the grabbing force and the connecting stability of the barbs in the using process are enhanced.

This invention belongs to the field of medical device technology and discloses a barbed suture and its preparation method. The barbed suture includes a suture body and barbs formed on the suture body. The preparation method involves irradiating the horizontally arranged suture body with a laser beam emitted from a laser, the temperature of which is higher than the melting temperature of the suture body. T m At the same time, it is lower than the thermal decomposition temperature of the suture body. T d The laser is positioned directly above or slightly above the suture body. The laser beam is decomposed into horizontal and vertical components. The horizontal component is parallel to the length of the suture body, and the vertical component points downwards. During irradiation, the laser reciprocates along a horizontal direction perpendicular to the length of the suture body, causing the laser beam to cut the suture body and form barbs. This invention allows the barbs to bend and curl upwards, achieving high-curvature barbs, and the resulting barbed sutures do not suffer from insufficient strength due to a reduction in suture diameter.

The utility model discloses a barb suture line tail end welding device which comprises a welding device body, the welding device body comprises a base, two line clamping plates are arranged on the upper surface of the base, a barb suture line body is clamped at the connecting position of the two line clamping plates, and a convenient adjusting mechanism is further arranged on the welding device body. By designing a convenient adjusting mechanism, when a bidirectional lead screw rotates, two moving frames can be driven to oppositely move on the outer surface of the bidirectional lead screw, two wire clamping plates are driven to stably and oppositely move to clamp and fix the tail end of a barb suture line body, accurate and corresponding clamping is convenient to adjust, the wire clamping plates are not prone to loosening when the barb suture line body is loosened after being clamped, and the working efficiency of the barb suture line body is improved. The tail end of the barbed suture line body is more firmly clamped and accurately welded, and the convenience of adjusting the line clamping plate and the welding accuracy are improved when the welding device main body performs welding operation on the tail end of the barbed suture line body.

The application discloses a preparation method of barbed silk suture, which comprises the following steps: after degumming and activation, the silk suture is immersed in a ginsenoside finishing liquid for padding treatment, and then is baked and dried; the drug-loaded silk suture is put into a mold, a silk fibroin solution is poured into the mold, and after removing bubbles, the silk suture is dried; the dried silk suture is taken out and subjected to wet heat treatment to obtain the barbed silk suture; during the degumming process, an alkali solution with a mass concentration of 0.02-0.08% is used for degumming; and during the activation process, a strong alkali solution with a concentration of 5g / L-50g / L is used for activation. The preparation method of the barbed silk suture applies ginsenoside and silk fibroin to the production and formation of the barbed suture; the polysaccharide chain in the ginsenoside can form stable hydrogen bonds with the silk fibroin, so that the ginsenoside can act on a wound for a long time (long-term sustained release), the drug effect is prolonged, the inflammation of the wound is effectively improved, and the wound healing is promoted.

This utility model discloses a highly stable medical barbed suture, belonging to the field of medical devices. The medical barbed suture of this utility model includes a suture body and a plurality of barbs spaced apart along the length of the suture body. The barbs are cut by removing material. The outer side of each barb has an insertion surface and an outer edge surface sequentially from front to back. The insertion surface extends obliquely outward from the front side of the barb's root to the outer edge surface. The outer edge surface is parallel or approximately parallel to the centerline of the suture body. The inner surface of the barb extends obliquely outward from the rear side of the barb's root, and the outer edge surface intersects with the inner surface to form a barb tip. The barbs of this utility model have a stable shape and good inner support, balancing tissue damage and tissue holding power. Furthermore, the outer edge surface of the barb is parallel or approximately parallel to the centerline of the suture body, allowing for maximum width cutting to form the barbs, reducing raw material waste. Larger barbed sutures can be made from the same diameter round suture, reducing the manufacturing cost of the barbed suture.

The present application relates to suture processing equipment technical field, specifically disclose a kind of cutting device and barb cutting process for barbed suture, cutting device includes base, the both ends of base are respectively provided with thread guide mechanism, barb cutting mechanism and thread guide mechanism, barb cutting mechanism includes carrier plate, carrier plate is opened with for through suture central hole, two cutting clamping seats are symmetrically arranged on the carrier plate located at the both sides of central hole, linear slot is opened on the side of mutual approach of two cutting clamping seats, and cutting knife assembly is arranged on cutting clamping seat, and one end of cutting knife assembly is arranged in linear slot by the recess groove opened on cutting clamping seat stretches;The cutting device for barbed suture disclosed in the present application realizes the continuous, high-speed barb cutting of suture, significantly improves production efficiency, and can make the barb after cutting forming keep larger opening angle outward, enhances the holding force and connection stability of barb in use process.

The invention provides a barb suture line and a preparation method thereof, and relates to the field of surgery and medical cosmetology, the preparation method of the barb suture line comprises the following steps: S1, extruding a thin-wall hollow tube through an extruder; s2, hot cutting is conducted on the pipe wall of the hollow pipe, and barbs are formed; and S3, cutting is conducted in the axis direction of the hollow pipe, and a kerf belt which does not penetrate through the pipe wall is formed. According to the preparation method of the barbed suture line, the thin-wall hollow pipe is obtained through extrusion molding, then thermal cutting is performed to form the barbs on the pipe wall, and the kerf belt is formed through non-through cutting in the axis direction, so that the suture line has better flexibility, the barbs generated by thermal cutting enhance the anchoring force, and the suture line is more flexible. The stability of the suture line in tissues is ensured; in addition, due to the non-through design of the kerf belt, the ductility of the suture line is improved, the suture line can adapt to tissue activity, the possibility of breakage is reduced, and therefore the reliability and the clinical effect of the suture line are improved.

A barbed suture may include a body and a plurality of barbs. The body may include a substantially flat surface extending along a longitudinal axis of the body, and the plurality of barbs may be formed on a surface of the body that is not the substantially flat surface. The body may have a non-circular cross-sectional shape, and the plurality of barbs may be formed along a longitudinal axis of the body on a corner of the cross-sectional shape. A tissue repair device may include a base membrane and a plurality of barbed sutures attached to the base membrane.

The utility model discloses a barb suture line pressing device which comprises a base table and an auxiliary table connected to one side of the base table. The placing assembly comprises a placing piece which is mounted on the top surface of the base table and has one end extending out of the base table, and an inserting groove which is formed in one end of the placing piece and is of an arc-shaped structure; the clamping assembly comprises an L-shaped fixing frame fixed to the top face of the base table, a threaded rod B connected to the end of the fixing frame in a threaded mode, and a rubber extrusion block fixedly connected to the bottom end of the threaded rod B; through the designed placing assembly and clamping assembly, a suture needle of an arc-shaped structure can be clamped and fixed, an inserting groove in a placing piece can be matched with the shape of the suture needle, the suture needle is right inserted into the inserting groove, the tail end of the suture needle extends out of the placing piece, and then a rubber extrusion block is used for extruding and fixing the suture needle; through cooperation of the structure, the suture needle can be accurately and stably clamped and fixed, and subsequent connection operation with a barb suture line is facilitated.

The invention discloses a preparation method of a PPDO composite material and an absorbable suture line with barbs, and belongs to the technical field of medical biomaterials.Silica-based Janus particles are prepared through a one-pot method and serve as active interfaces after being coated with polydopamine, ZIF-8 crystal shells are guided to grow in situ, epigallocatechin gallate is synchronously encapsulated, and the absorbable suture line with the barbs is prepared. The preparation method comprises the following steps: preparing antibacterial composite particles, compounding the antibacterial composite particles, poly (p-dioxanone), polylactic acid, quinazarin and acetyl tributyl citrate through a melt blending process to obtain a PPDO composite material, carrying out melt spinning and stretching heat setting on the PPDO composite material to prepare the antibacterial absorbable suture line, and carrying out mechanical cutting and eversion process processing to obtain the antibacterial absorbable suture line. The absorbable suture line with the barbs, which has excellent mechanical strength and long-acting antibacterial property, is obtained.

The invention relates to barb suture line multi-line multi-angle machining and cutting equipment. The barb suture line multi-line multi-angle machining and cutting equipment comprises a rack, a feeding device, a multi-shaft line pressing and rotating device, a multi-line cutting table, a cutting device, a multi-shaft clamping and rotating device and a traction device. The multi-shaft line pressing rotating device comprises a plurality of rotating shafts arranged side by side, a plurality of suture lines penetrate through different rotating shaft center holes respectively, and roller sets used for clamping the suture lines are arranged at the ends of the rotating shafts. The first driving element drives the multiple rotating shafts to rotate synchronously so as to drive the multiple suture lines to rotate synchronously around the axes of the suture lines. The multi-shaft clamping and rotating device comprises a plurality of thread pulling clamping jaws arranged side by side, and the second driving element drives the thread pulling clamping jaws to synchronously rotate so as to be matched with the multi-shaft thread pressing and rotating device to drive the multiple suture threads to synchronously rotate around the axes of the suture threads. Synchronous processing of a plurality of suture lines is achieved, the processing efficiency of the suture lines is improved, and the size of the whole machine is small.

The utility model discloses barbed suture line processing and positioning equipment which comprises a driving assembly for driving a barbed suture line bobbin, a fixed seat and a driving motor which are fixedly connected through a screw, and a driving shaft fixed with the driving motor through a screw, and a fixed plate is fixed on the side of the fixed seat through a screw. A laser sensor is fixed on the fixed plate through a screw; the lifting assembly comprises an electric push rod fixed to the fixing base through a screw, a fixing block fixed to the top of the electric push rod through a screw, a rotating cylinder rotationally connected with the fixing block, and a clamping piece penetrating through the rotating cylinder in a sliding mode. The adjusting assembly comprises a motor linear guide rail fixed to the outer surface of the fixing base through a screw and a connecting plate fixed to a sliding block on the motor linear guide rail through a screw. Through the designed guide assembly, the stretched barb suture line is limited by the rotating wheel on the first guide rod and the alternately distributed second guide rods, and the barb suture line close to the bobbin is prevented from shaking.

The utility model discloses a barb suture cutting device, and relates to the technical field of medical sutures, the barb suture cutting device comprises a positioning mechanism and a cutting mechanism, the positioning mechanism is used for positioning a suture to be cut; the cutting mechanism is arranged beside the positioning mechanism and comprises a rotary driving structure and a cutter driving structure, the driving end of the rotary driving structure is connected with the cutter driving structure and used for adjusting the angle of the cutter driving structure relative to the sewing thread, and the cutter driving structure is used for cutting the sewing thread. The production efficiency and the sewing quality of the sewing thread can be improved.

This invention belongs to the field of online inspection technology, specifically a multi-parameter visual online inspection method and device suitable for barbed sutures. The method includes: defining suture inspection parameters; obtaining parameter adjustment data based on material reflectivity and morphological characteristics; adjusting the suture inspection parameters according to the parameter adjustment data to obtain target inspection parameters; acquiring multi-view image data of the current barbed suture; processing the data using a multi-view inspection method to obtain multi-dimensional inspection data; determining whether the multi-dimensional inspection data meets a preset threshold based on the target inspection parameters; outputting a pass / fail result if yes, otherwise marking the defect location type; analyzing the correlation between the defect location type and the suture inspection parameters to obtain defect detection correlation correction data; and adjusting the target inspection parameters to obtain accurate inspection parameters. This invention can adapt to the inspection needs of barbed sutures of various materials and specifications, reducing equipment investment costs and improving inspection accuracy and stability.

The application relates to a kind of absorbable surgical barbed suture assembly, belonging to the technical field of surgical medical supplies.The application includes a take-up box, the outer wall of the take-up box is fixedly connected with a delivery box, the inner wall of the delivery box is rotatably connected with a bidirectional screw, the outer wall of the bidirectional screw is threadedly connected with a moving plate, the inner wall of the delivery box is provided with a cutting mechanism to cut the suture obliquely when taking the suture, and the outer wall of the take-up box is provided with a clamping mechanism to clamp and fix the suture when cutting the suture.The rotation of the bidirectional screw drives the two moving plates to displace towards each other, so that the two cutters relatively displace, and the outer wall of the suture is extruded and cut by the cutting edge of the cutter.Because of the inclined design, the cutter cuts obliquely, which can avoid cutting the barbed suture tissue, ensure the function and quality of the cut suture, and prevent the barbed tissue from falling as debris after being cut.

The utility model relates to the field of wound suture, in particular to an interval type barb suture line and an interval type barb suture assembly. The interval type barb suture line comprises a plurality of barb sections and a plurality of smooth sections which are arranged at intervals in the extending direction. Wherein the lengths of the barb section and the smooth section are configured as follows: at least the middle part of the barb section is buried under the skin after the wound is sutured, and at least the middle part of the smooth section is exposed outside the skin. According to the utility model, at least most of the part of the barb suture line exposed outside the skin is smooth, so that the damage to the skin at the sutured part is weakened.

The application discloses a tension-reducing skin suture thread feeding method. The tension-reducing skin suture thread feeding method shoots a suture needle through a suture device, and then feeds a barbed suture thread for skin suture; a plurality of suture needles are arranged on the suture device, and an independently arranged barbed suture thread is arranged on each suture needle, and the barbed suture thread can be separated from the suture needle; the suture device comprises a needle changing mechanism for switching the suture needle to be shot; and the suture device comprises a firing mechanism for firing the suture needle to be shot.

The invention relates to a double-angle knotting-free barb suture line and a preparation method thereof, and relates to the technical field of medical instruments. The double-angle knotting-free barb suture line comprises a suture needle and a suture line body, and the suture line body comprises a suture line body and a barb structure; the surface of the suture line body is subjected to double-angle cutting to form a barb structure, and the double-angle cutting means that after the suture line body is sheared once on the surface of the suture line body through a shearing tool at a first shearing angle, the shearing tool conducts second-time cutting through a second shearing angle with the first-time shearing tail end as a starting point, and the second-time shearing tail end serves as a second shearing angle. And a barb structure with limited shearing depth, shearing length and shearing density is formed. According to the double-angle knotting-free barb suture line, the tissue grasping force and the barb fixing strength can be effectively increased through double-angle cutting, and the risk of operation failure caused by suture line breakage is reduced.

The application discloses an application of an endoscopic continuous suturing device in preparation of a gastric plication suturing medical instrument, and the endoscopic continuous suturing device comprises a suture wire with uniformly distributed barbs, a plurality of titanium clips and a pushing device, the suture wire is 6-10 cm long, and the two ends of the suture wire are respectively provided with a front end connecting ring and a rear end connecting ring; a sheath pipe is arranged at the position close to the rear end connecting ring of the suture wire; the titanium clip is used for clamping and fixing the gastric mucosa tissue and the suture wire; the pushing device is used for tightening the suture wire and comprises a traction steel wire, an inner push tube and an outer sheath tube which are sleeved from inside to outside and slide; a metal hook is arranged at the front end of the traction steel wire; two operation handles are arranged at the rear end of the pushing device and are used for respectively controlling the inner push tube and the traction steel wire to move forward and backward. The gastric mucosa is sutured by the barbed suture wire, the long-term stability of the gastric wall folding is ensured, the barbed suture wire cooperates with the titanium clip to realize step-by-step pre-tightening, and the gastric cavity volume can be accurately controlled.

A braided barbed suture includes a barbed monofilament insert including an elongated core having a thickness and a plurality of barbs protruding outward from opposite sides of the elongated core. The braided barbed suture includes a braided sheath surrounding the elongated core to form a composite core of the braided barbed suture. The composite core has a thickness and the elongated core is located in the center of the composite core. The elongated core thickness is about 6 mils to 8 mils and the composite core thickness is about 13 mils to 18 mils. The ratio of the elongated core thickness relative to the composite core thickness is between about 0.16 to 0.91. The elongated core has a transition zone forming a concave profile. The braided barbed suture has a single breaking point for both the braided sheath and the barbed monofilament insert. The barbed monofilament insert has a PDS monofilament core and the braided sheath is a VICRYL multifilament yarn braided sheath.

This utility model discloses a barbed suture, including a suture body and an anchoring ring disposed at the top of the suture body; multiple sets of barbs are alternately arranged on both sides of the suture body; a pressing structure is provided at the top of the suture body to press the anchoring ring tightly; this utility model improves and optimizes existing sutures by alternately arranging barbs on both sides of the suture. This unique barb distribution significantly enhances the friction between the suture and the tissue, thereby providing stronger tissue gripping force and effectively preventing the incision from splitting due to excessive tension. At the same time, compared with some complex barb structures, this barb arrangement reduces processing difficulty, improves production efficiency, and reduces production costs. In addition, the pressing structure designed at the anchoring ring of the suture ensures the strength and stability of the anchoring ring.

The application discloses a barbed suture production device, and relates to the technical field of surgical suture production. The device comprises a feeding mechanism, at least two clamping and rotating mechanisms, a suture cutting mechanism and a barbed cutting mechanism. The feeding mechanism conveys surgical sutures, and the surgical sutures are conveyed to the clamping and rotating mechanisms after passing through the suture cutting mechanism, so that the two ends of the surgical sutures are clamped by different clamping and rotating mechanisms, so that the surgical sutures are kept in a taut state. At this time, the suture cutting mechanism cuts the surgical sutures between the feeding mechanism and the clamping and rotating mechanisms. The barbed cutting mechanism is used for barbed cutting operation on the surgical sutures to form barbs on the surgical sutures. After the barbs are formed on one side of the surgical sutures, the clamping and rotating mechanisms rotate the surgical sutures, so that the barbed cutting mechanism forms barbs on the other side of the surgical sutures. In this way, the application can form barbs on the two sides of the surgical sutures by using only one barbed cutting mechanism, and the production cost can be reduced.

The utility model discloses a barb cutting mechanism for barb suture lines, which comprises two mounting strips arranged in parallel, and a station plate is mounted at the tops of the two mounting strips; the special-shaped plate is arranged on the inner sides of the two mounting strips, the stepping motor is mounted at the top of the special-shaped plate, and an output shaft of the stepping motor penetrates through the special-shaped plate and is connected with a fastening disc; the circular blade is mounted at the bottom of the fastening disc; the positioning assembly comprises a fixing ring mounted at the top of the circular blade and located on the outer side of the fastening disc, a rotating rod arranged at the top of the fixing ring, an annular groove formed in the bottom of the special-shaped plate and a plurality of balls arranged on the inner wall of the annular groove; the round blade positioning device has the advantages that through the designed positioning assembly, in the rotating process of the round blade, the rotating rod moves in the annular groove along with movement of the round blade, the balls play a role in reducing friction, meanwhile, the movement track of the rotating rod is limited, stability of the round blade is guaranteed, and position deviation of the round blade is prevented.

This invention relates to the field of suture processing equipment technology, specifically disclosing a cutting device and barbed suture cutting process. The cutting device includes a base, with an infeed guide mechanism, a barbed cutting mechanism, and an outfeed guide mechanism respectively arranged at both ends of the base. The barbed cutting mechanism includes a carrier plate with a central hole for the suture to pass through. Two cutting clamps are symmetrically arranged on the carrier plate on both sides of the central hole. Straight grooves are formed on the sides of the two cutting clamps that are close to each other. A cutting blade assembly is arranged on the cutting clamp, with one end of the cutting blade assembly extending into the straight groove through a groove on the cutting clamp. The barbed suture cutting device disclosed in this invention achieves continuous and high-speed barbed cutting of the suture, significantly improving production efficiency. It also allows the barbs to maintain a large outward unfolding angle after cutting, enhancing the gripping force and connection stability of the barbs during use.

A method for manufacturing a monofilament barbed suture. The method includes positioning a mandrel device adjacent to a rotary mount on which a razor is mounted, the mandrel device comprising a mandrel mounted to a fixture, a filament in contact with a curved surface of the mandrel; and rotating the razor with the rotary mount so that an edge of the razor impinges upon an exterior surface of the filament to impart a linear cut to the filament to a cut depth within the filament to form a barb. The mandrel has a diameter of 4 millimeters or less.

The invention belongs to the technical field of barb suture production, and particularly relates to barb suture multi-shape empennage production forming equipment which comprises a supporting mechanism, and a rotating mechanism is arranged at the top of the supporting mechanism; the cutting mechanism is arranged on the side face of the rotating mechanism; the rotating mechanism is used for adjusting the rotating angle of the cutting mechanism; the cutting mechanism comprises arc plates, and the ends of the two arc plates are fixedly arranged on the side face of the rotating mechanism. And the movable plate is movably arranged between the two arc plates. The middle disc, the arc strip, the extension block, the triangular block and other structures rotate in the sliding opening of the arc plate around the circle center of the arc plate, and the arc shape of the arc strip, the radian of the sliding opening of the arc plate and the radian of the middle disc are kept consistent, so that when the middle disc rotates in the sliding opening of the arc plate, the extension block always faces the circle center of the arc plate; the long blade always faces the circle center of the arc plate during rotation, and the cutting angle of the long blade during suture cutting is adjusted.

1. Name of the designed product: plastic disc (absorbable surgical barbed suture). 2. Use of the designed product: transport packaging of suture required for surgical operation. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.