Risperidone long-acting injectable (RLAI) is approved for the treatment of schizophrenia in many countries. The suggested site is the gluteal muscle with a needle length of two inches (50 mm) in Japan, which is longer than the ordinarily used needle for intramuscular injections. The aim of this study was to determine the optimal needle insertion length for accurate delivery of RLAI procedure am...

PURPOSE To study the ability of a human operator to manually correct for errors in the needle insertion path without partial withdrawal of the needle by means of an active, tip-articulated steerable needle. MATERIALS AND METHODS The needle is composed of a 1.32-mm outer-diameter cannula, with a flexure joint near the tip, and a retractable stylet. The bending stiffness of the needle resembles...

In this observational study, we used Doppler ultrasound during the performance of vertical infraclavicular brachial plexus blockade. The success rate at inserting the needle at the point where the sound of the subclavian artery via Doppler reached its maximum audibility was compared with that of the classical insertion point. In 89 of the 100 patients, the medial or posterior cord was found at ...

PURPOSE Prostate adenocarcinoma is the most common noncutaneous malignancy in American men with over 200,000 new cases diagnosed each year. Prostate interventional therapy, such as cryotherapy and brachytherapy, is an effective treatment for prostate cancer. Its success relies on the correct needle implant position. This paper proposes a robust and efficient needle segmentation method, which ac...

BACKGROUND Continuous femoral nerve block (CFNB) improves postoperative analgesia after total knee arthroplasty (TKA). The aim of this study was to investigate the clinical efficacy and complications of our in-plane three-step needle insertion technique that was devised to reduce the risk of direct femoral nerve injury during CFNB in anesthetized patients. METHODS This retrospective study inc...

technique of endoscopic ultrasound (EUS)-guided pseudocyst drainage as a one-step procedure using a novel multiple wire insertion technique facilitated by the double-lumen biliary cytology brush catheter (Cook Medical, Winston-Salem, North Carolina, USA). Six symptomatic patients underwent EUS-guided pseudocyst drainage using the novel multiple wire insertion technique (●" Video 1). After ensur...

Aim: To compare the efficacy and safety of direct trocar insertion and Veress needle to gain access in the abdominal cavity for laparoscopic cholecystectomy Study design: Randomized control study Place and duration of study: Surgical unit II, Akhtar Saeed Trust Teaching Hospital/ Farooq Hospital West Wood , Lahore, from August, 2012 to July, 2014. Methodology: All patients undergoing laparoscop...

A sensory substitution technique is presented in which the kinesthetic and tactile feedback are substituted by tactile feedback only provided by two wearable devices able to apply forces to the index finger and thumb holding a handle during a needle insertion task. The force pattern fed back to the user while using the tactile device is similar, in terms of intensity and area of application, to...

Radiofrequency (RF) ablation is a good alternative to hepatic resection for treatment of liver tumors. However, accurate needle insertion requires precise hand-eye coordination and is also affected by the difficulty of RF needle navigation. This paper proposes a cooperative surgical robot system, guided by hand gestures and supported by an augmented reality (AR)-based surgical field, for robot-...

BACKGROUND Studies have shown that the venous system tends to collapse during hypovolemic shock. The use of the bone marrow space for infusions is an effective alternative, with the tibial insertion site being the norm. OBJECTIVES This study was conducted to determine a quick intraosseous infusion method that could be an alternative to the tibial route in neonates during emergency situations....