Bacteria thread the needle.

A Holder Needle.

THE finest movements of surgery are made with the fingers and thumb, not with the wrist and hand as a whole. In the usual method of suturing, the needle is grasped by the needle-holder which is held more or less in the palm of the hand. The fine, sharp needles of ophthalmic surgery, such as those made by Grieshaber, inevitably become dulled as they are grasped by the metal blades of the needle-...

Optimization of the thread take-up lever mechanism in lockstitch sewing machine using the imperialistic competitive algorithm

Thread Pitch Variant in Orthodontic Mini-screws: A 3-D Finite Element Analysis

Orthodontic miniscrews are widely used as temporary anchorage devices to facilitate orthodontic movements. Miniscrew loosening is a common problem, which usually occurs during the first two weeks of treatment. Macrodesign can affect the stability of a miniscrew by changing its diameter, length, thread pitch, thread shape, tapering angle and so on. In this study, a 3-D finite element analysis wa...

Analysis of the NovoTwist pen needle in comparison with conventional screw-thread needles.

Administration of insulin via a pen device may be advantageous over a vial and syringe system. Hofman and colleagues introduce a new insulin pen needle, the NovoTwist, to simplify injections to a small group of children and adolescents. Their overall preferences and evaluation of the handling of the needle are reported in the study. This new needle has the potential to ease administration of in...

A new treatment for snoring: sling snoreplasty with a permanent thread.

CONCLUSION Sling snoreplasty could be a new effective palatal snoring procedure with minimal side effects. It could be combined with other snoring and sleep apnea operations. OBJECTIVES To introduce sling snoreplasty with a permanent thread. PATIENTS AND METHODS The procedure is performed under local anesthesia and in the sitting position. The instrument requirements include a nylon no. 4 s...

Multi-stage Suture Detection for Robot Assisted Anastomosis based on Deep Learning

In robotic surgery, task automation and learning from demonstration combined with human supervision is an emerging trend for many new surgical robot platforms. One such task is automated anastomosis, which requires bimanual needle handling and suture detection. Due to the complexity of the surgical environment and varying patient anatomies, reliable suture detection is difficult, which is furth...