18 results about "Needle track" patented technology

A suturing mechanism and a surgical robot, the suturing mechanism comprising a suturing needle and a suturing assembly, the suturing assembly comprising a needle track and a suturing needle driving mechanism. The needle track allows the suturing needle to pass through, and the suturing needle driving mechanism drives the suturing needle to move in the needle track; the suturing assembly comprises a first suturing assembly and a second suturing assembly which are spaced apart and opposite to each other, so that the first needle track of the first suturing assembly and the second needle track of the second suturing assembly are spaced apart and opposite to each other to form a suturing track; the first suturing needle driving mechanism of the first suturing assembly and the second suturing needle driving mechanism of the second suturing assembly drive the suturing needle to move in the suturing track alternately; one of the first needle track and the second needle track is in a minor arc shape, and the other is in an arc shape. The suturing mechanism enables the suturing needle to be guided and constrained on both sides of the tissue to be punctured, so that the motion track of the suturing needle can be kept stable, thereby improving the puncture effect.

The present application relates to braiding equipment technical field, especially to a kind of reverse package cutting circle plush jacquard machine, which can weave out stronger three-dimensional sense, and the appearance of plush braided product is high, including rack, big disc gear, feed yarn nozzle, needle cylinder, sinker ring, upper cam seat, upper cam, lower cam seat, lower cam, needle selector, knitting needle, jacquard piece, hanging wool piece, reverse package piece and cutting wool piece, knitting needle is arranged in the needle slot of needle cylinder, knitting needle has knitting needle butt, lower cam seat is arranged on the circumference outside of needle cylinder, lower cam is arranged on lower cam seat, lower cam has at least one knitting needle track, for transforming different weave technology, knitting needle butt of knitting needle is embedded in knitting needle track, sinker ring is arranged on the upper end of needle cylinder, jacquard piece, hanging wool piece, reverse package piece and cutting wool piece are all arranged in the needle slot of sinker ring, hanging wool piece is connected with jacquard piece, reverse package piece and cutting wool piece are arranged in the middle groove of jacquard piece and hanging wool piece, and cutting wool piece is located on reverse package piece.

This utility model discloses a breathable double-sided waffle knitted fabric with an outer and inner layer structure. Both the outer and inner layers are waffle structures with a raised and recessed network. The recessed patterns of the outer and inner layers are perpendicular. The fabric has a knitting structure with one needle track on the upper needle plate and one needle track on the lower needle cylinder. The knitting pattern consists of four rows forming a complete knitting cycle. According to the arrangement of the upper needle plate to the lower needle cylinder, the four rows of patterns are: the first and second rows are loops, loops; the third and fourth rows are floats, loops. The above-mentioned breathable double-sided waffle knitted fabric has a reasonable structure and a raised and recessed knitting structure. Through the perpendicularity of the recessed patterns of the outer and inner layers, small air cavities are formed. It has heat retention when static and good breathability, air circulation, and rapid heat dissipation when in motion.

The utility model relates to the technical field of jacquard machines, in particular to a high-density cutting loop-pile jacquard machine. A rotating frame is installed on the upper portion in the machine frame, an upper needle dial and a lower needle cylinder are installed in the machine frame, a fixing frame is installed on the machine frame, a groove crochet hook rail base is installed on the fixing frame, a groove crochet hook rail is installed on the side face of the groove crochet hook rail base, a plurality of groove crochet hooks are installed on the lower needle cylinder, and the groove crochet hooks are matched with the groove crochet hook rail. A groove is formed in the middle of the groove crochet hook, a lower cutter is arranged in the groove, a lower cutter rail is installed on the groove crochet hook rail base, and the lower cutter rail is matched with the lower cutter. According to the utility model, the lower cutter is extended and retracted through the lower cutter track, and if the groove crochet hook hooks the looped pile and the lower cutter extends upwards, the looped pile can be cut off to form a plush effect, so that the groove crochet hook can be made into towels, warm-keeping cloth and the like.

Devices and methods for suturing are disclosed. An illustrative suturing device includes a housing defining an arced needle track having a first end and a second end, the housing defining a gap between the first end of the arced needle track and the second end of the arced needle track that extends inwardly into the housing to receive a tissue sample therein for suturing. The arced needle track is configured to receive an arced needle therein. The housing further defines an arcuate guide track to receive at least a portion of a needle drive of the suturing device. The suturing device further includes a needle drive configured to advance the arced needle along the arced needle track along a first direction. The needle drive includes a drive filament and a needle engagement surface. The drive filament is directed around and at least partially surrounds the gap of the housing.

The invention discloses a pattern sewing machine auxiliary device for garment production, and relates to the technical field of pattern sewing machines, the pattern sewing machine auxiliary device comprises a workbench, the workbench is fixedly provided with a slide rail rod through an electric telescopic rod, and the slide rail rod is slidably provided with a control block. Through cooperation of the first torsion spring, the shifting rod and the shifting fork, the upper die automatically rotates to avoid a machine needle track at the last sewing stage, the needle breaking risk is fundamentally eradicated, by means of a flexible pressing structure of the pressing block and the spring piece, the fixing requirements of small standard pieces with different thicknesses are met, the standard pieces are prevented from being crushed or shifted, and the production efficiency is improved. The oblique angle of the push rod triggers rigid connection with the clamping assembly, synchronous sliding of the control block and the moving piece is achieved, it is ensured that the label piece and lining cloth are accurately sewn according to a preset track, automatic operation and anti-interference protection of the clothes label nailing process are achieved, the problems of potential safety hazards caused by manual pressing of the label piece and needle breakage caused by collision of a machine needle to an upper mold are effectively solved, and the production efficiency is improved. And a turning rod is matched with a second torsional spring, so that the standard parts are prevented from sliding off during feeding, and finished products can be conveniently taken out.

Implementations of methods related to suturing devices are provided. A suturing device includes a housing defining an arcuate needle track having a first end and a second end and a gap between the first end and the second end of the arcuate needle track. The suturing device also includes a drive system to advance an arcuate needle along the arcuate needle track, the drive system including a drive member operably coupled to an elongate flexible member. The elongate flexible member can be reciprocated on at least one support surface that directs the elongate flexible member from a first path laid in a first plane parallel to a centerline of the arcuate needle track to a second path laid in a second plane different from the first plane.

Devices and methods for minimally invasive suturing are disclosed. An illustrative device includes a housing defining an arced needle track therein, the arced needle track having a first end and a second end separated by a gap in the housing configured to receive a tissue segment to be sutured, the arced needle track being configured to receive an arced needle therein. The device further includes a needle drive configured to drive the arced needle along the arced needle track in a first rotational direction, the needle drive being configured to releasably engage the arced needle and advance the arced needle along the arced needle track in the first rotational direction.

The application discloses a cam plate device, a knitting needle assembly and a knitting method of a computerized flat knitting machine, which comprises a cam plate, a knitting unit, a pressing piece unit and a needle selection unit, the knitting unit is arranged on the upper part of the cam plate, the pressing piece unit is arranged on the middle part of the cam plate, and the needle selection unit is arranged on the lower part of the cam plate; the knitting unit comprises a dish-shaped cam and a turning cam, the dish-shaped cam is fixedly arranged on the cam plate, the turning cam is telescopically arranged above the dish-shaped cam, the surface of the dish-shaped cam is provided with a needle receiving needle track, and both sides of the surface of the dish-shaped cam are provided with air clearance grooves, and a guide rail is arranged between the air clearance grooves and the needle receiving needle track. The dish-shaped cam and the knitting needle assembly are newly designed, the structure of the dish-shaped cam and the knitting needle assembly is greatly simplified, the production cost is reduced, the needle selection speed is improved, the work efficiency is greatly improved, and the needle is more stable and smooth.

Tissue-cutting devices and methods thereof, where a tissue-cutting device is coupleable with a catheter. The tissue-cutting device includes a blade that cuts the skin during insertion of the device in a needle track to enlarge to needle tract. The tissue-cutting device is configured for lateral separation from the catheter and / or a guidewire. The tissue-cutting device includes a channel for receiving the catheter and / or a guidewire. The channel can be configured to (i) retain the catheter / guidewire within the channel in the absence of a deliberate action by the clinician and (ii) facilitate lateral removal of the catheter / guidewire from the channel in response to the deliberate action. A catheter assembly includes a catheter coupled with the tissue-cutting device. The tissue-cutting device may include a sheath extending along a distal portion of the tissue-cutting device.

The present application relates to an adaptive track sewing machine, comprising a frame, a clothing template, a sewing head and a sewing table. The clothing template comprises an upper die frame and a lower die frame. The upper die frame is lifted along the Z-axis by a first lifting mechanism and moved along the X-axis by a first reciprocating mechanism. The lower die frame is moved along the X-axis by a second reciprocating mechanism. The sewing head is moved along the Y-axis by a third reciprocating mechanism. The upper and lower die frames are respectively provided with first and second sliding groove structures and slidable clamping plates, which cooperate with a detachable adjusting rod assembly to automatically adjust the position of the clamping plates. First and second limiting mechanisms (including wave bead screws and tooth structures) lock the position of the clamping plates. The sewing table is lifted along the Z-axis by a second lifting mechanism to avoid adjustment interference and assist in supporting the clamping plates. This scheme can complete needle track adjustment without disassembling the template, improving efficiency and accuracy and realizing "one board, multiple uses".

The inventions provided herein relate to tissue markers and uses thereof, e.g., to mark a target tissue site (e.g., a biopsy site in a breast tissue) or to produce a cell scaffold. The tissue markers described herein are designed to be resistant to fast migration (e.g., immediate migration after implantation through a needle track) and slow migration (e.g., over an extended period of time) upon implantation at a target tissue site (e.g., a biopsy site in a breast tissue), without using an adhesive. Additionally or alternatively, the tissue markers described herein can be readily detectable by at least one imaging modality, e.g., but not limited to magnetic resonance imaging, X-ray imaging, ultrasound imaging, or a combination thereof.

The invention discloses an air bag sewing path optimization method and system based on visual identification, and the method comprises the steps: collecting a cloth image through an industrial camera in combination with a polarized light source, carrying out the graying, histogram equalization and edge enhancement processing, recognizing a bar code region on the cloth through a multi-modal detection algorithm, and outputting the boundary and direction information of a polygon. And the bar code area is projected to a machine tool coordinate system through hand-eye calibration, and a gap-forbidden mask is dynamically generated in combination with a height difference. In the path planning process, a reference sewing track and a seam forbidding mask are overlapped, a path searching and spline smoothing method is adopted to generate an obstacle avoidance track, and curvature and feeding speed constraints are set according to bar code features. When the system is executed, main shaft angle synchronous interpolation is adopted, high-precision matching of a needle trace and a track is achieved, feedforward speed reduction and presser foot compensation are triggered when the system enters a seam forbidding area, and the instantaneous puncture load is reduced. The method effectively avoids the interference of a bar code area and improves the overall sewing quality.

Implementations of a needle loader and related methods are provided. The needle loader comprises a housing, a movable arm disposed within the housing, and a needle mount defined on the movable arm to releasably attach to an arced suturing needle. The needle loader further includes an arced needle releasably attached to the needle mount. The needle can be held in place on the needle mount by way of an interference fit. The needle mount can be defined on a surface of the movable arm that faces an arced needle track of a suturing device when loading an arced suturing needle in the needle track of the suturing device.

Devices and methods for minimally invasive suturing are disclosed. An illustrative device includes a housing defining an arced needle track therein having a first end and a second end separated by a gap defined in the housing to receive tissue to be sutured. The arced needle track is configured to receive an arced needle therein. The housing further defines an arced guide track therein to receive a guide. The device further includes a guide slidably disposed in the arced guide track displaceable between a first position along the guide track and a second position along the guide track. The guide includes a pawl to releasably engage the arced needle. The device further includes a filament operably coupled to the guide. The filament traverses a pathway from a proximal end of the housing toward a distal end of the housing.

This invention provides a knitting mechanism, a knitting machine, and a knitting method. The knitting mechanism includes knitting needles, a cam assembly, and a needle selection assembly. The knitting needles include a hook needle and a connecting needle. The hook needle has a hook needle body and hook needle feet connected to the hook needle body. The connecting needle has a connecting needle body and connecting needle feet connected to the connecting needle body. The top of the connecting needle can be connected to the hook needle. The cam assembly has a connecting needle track, a first hook needle track, and a second hook needle track. By controlling the knitting needle to move along any one of the three tracks—the connecting needle track, the first hook needle track, and the second hook needle track—various pile lengths of pile, including no pile, short pile, medium pile, and long pile, can be achieved. This allows the cut loop pile fabric to present more three-dimensional patterns, increasing the variety of patterns available for cut loop pile fabric and meeting consumer demand.

The utility model relates to the technical field of knitting equipment, in particular to an intelligent five-station plush jacquard, which comprises an upper knitting mechanism and a lower knitting mechanism, the upper knitting mechanism comprises a needle dial, an upper triangular seat, an upper triangle and a knitting needle, the needle dial is provided with a needle groove, the knitting needle is arranged in the needle groove, the upper triangular seat is arranged on the upper side of the needle dial, and the lower triangular seat is arranged on the lower side of the needle dial. The upper knitting mechanism comprises a needle cylinder, a lower triangular seat, a lower triangle, a crochet hook, a cutting knife, a connecting needle, a pattern bit and a needle selector, the needle cylinder is arranged on the lower side of the needle dial and provided with a crochet hook groove, and the needle selector is arranged on the needle cylinder and provided with a needle butt. The crochet hook, the cutting knife, the connecting needle and the pattern bit are arranged in the crochet hook groove, the connecting needle is arranged on the lower side of the crochet hook and movably connected with the crochet hook, and the pattern bit is arranged on the lower side of the connecting needle and connected with the connecting needle.