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This saves time, and eliminates the most difficult threading of very fine needles and sutures. Two additional benefits are reduced drag and less potential damage to friable tissue during suturing. In a swaged suture the thread is of narrower diameter than the needle, whereas it protrudes on both sides in an eyed needle.
Wound closure is performed with sutures (stitches), staples, or adhesive tape or glue. Primary intention can only be implemented when the wound is precise and there is minimal disruption to the local tissue and the epithelial basement membrane, e.g. surgical incisions. [102] This process is faster than healing by secondary intention. [101]
Stronger braided suturing thread is preferred because the knot has a tendency to fray as it is slid down the cannula. At the end of the running suture line, clips can be placed across the suture tail. Barbed suture is a knotless surgical suture that has a pattern of barbs on its surface. These barbs lock the suture into the tissue, eliminating ...
In special relativity, a faster-than-light particle would have spacelike four-momentum, [3] unlike ordinary particles that have time-like four-momentum. While some theories suggest the mass of tachyons is imaginary , modern formulations often consider their mass to be real, [ 14 ] [ 15 ] [ 16 ] with redefined formulas for momentum and energy.
Speculative faster-than-light concepts include the Alcubierre drive, Krasnikov tubes, traversable wormholes, and quantum tunneling. [1] [2] Some of these proposals find loopholes around general relativity, such as by expanding or contracting space to make the object appear to be travelling greater than c.
In anatomy, a suture is a fairly rigid joint between two or more hard elements of an organism, with or without significant overlap of the elements. [ 1 ] Sutures are found in the skeletons or exoskeletons of a wide range of animals, in both invertebrates and vertebrates .
This gives time for the subsequent self-healing of the injury which in addition to wound closure also results in the (partly) restoration of mechanical properties of the plant organ. Based on a variety of self-sealing and self-healing processes in plants, different functional principles were transferred into bio-inspired self-repairing materials.
String is used to tie, bind, or hang other objects. It is also used as a material to make things, such as textiles, and in arts and crafts. String is a simple tool , and its use by humans is known to have been developed tens of thousands of years ago. [ 1 ]