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  2. Surgical suture - Wikipedia

    en.wikipedia.org/wiki/Surgical_suture

    Swaged (or "atraumatic") needles with sutures consist of a pre-packed eyeless needle already attached (by swaging) to a specific length of suture thread. 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 ...

  3. Suture materials comparison chart - Wikipedia

    en.wikipedia.org/wiki/Suture_materials...

    Note – catgut is no longer used in the UK for human surgery. [citation needed] A synthetic adsorbable suture material. Braided synthetic adsorbable multifilament made of polyglycolic acid and coated with N-laurin and L-lysine, which render the thread extremely smooth, soft and knot safe. A synthetic adsorbable suture material.

  4. Surgical instrument - Wikipedia

    en.wikipedia.org/wiki/Surgical_instrument

    Needles have different shapes (e.g. j shape, ½ circle, straight) and cutting edges (tapered - round, conventional cutting - triangular) depending on the application and areas of the suture. [21] Sutures can be categorized based on different sizes (e.g.#5-#11, higher numbers represent larger suture diameter) and types (absorbable and ...

  5. Instruments used in general surgery - Wikipedia

    en.wikipedia.org/wiki/Instruments_used_in...

    Access instrument. Used to create an opening into a space without opening the abdominal cavity. A camera is inserted through one to view the interior while instruments are inserted through the others to manipulate the organs. Ultrasonic energy device Surgical device typically used to dissect tissue, but also seals small vessels and tissue bundles

  6. Medullary ray (botany) - Wikipedia

    en.wikipedia.org/wiki/Medullary_ray_(botany)

    Most of these cells transform into xylem and phloem. But certain cells don't transform into xylem and phloem and remain as such. [clarification needed] These cells cut out by the cambium towards the periphery are phloem parenchyma while those towards the pith are xylem parenchyma. Both of these cells together work as secondary medullary rays.

  7. Wood anatomy - Wikipedia

    en.wikipedia.org/wiki/Wood_anatomy

    Softwoods exhibit a simpler basic wood structure, characterized by only two cell types and limited variation within these categories. In contrast, hardwoods display increased structural complexity owing to a higher number of fundamental cell types and a considerable degree of variability within these cell types.

  8. Horizontal mattress stitch - Wikipedia

    en.wikipedia.org/wiki/Horizontal_mattress_stitch

    The horizontal mattress stitch is a suture technique used to close wounds.It everts skin well and spreads tension along the wound edge. [1] [2] [3] This makes it ideal for holding together fragile skin [4] as well as skin under high tension such as the distant edges of a large laceration or as the initial holding suture in complicated repairs.

  9. Vertical mattress stitch - Wikipedia

    en.wikipedia.org/wiki/Vertical_mattress_stitch

    The vertical mattress stitch, often called vertical Donati stitch (named after the Italian surgeon Mario Donati), [1] is a suture type used to close skin wounds. The advantages of the vertical mattress suture are that it provides closure for both deep and superficial layers, and also allows perfect eversion and vertical opposition of the ...

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