The 'dry-needle technique', an intramuscular stimulation technique carried out by using a fine solid, 1-inch long, 30-gauge needle, was investigated in the treatment of tension-type headache (TTH) in a randomized, placebo-controlled trial. Fifteen patients with TTH received intramuscular needle insertions into six designated trigger points, while 15 controls received subcutaneous insertions. He...

biopsies of thoracic lesions guidance. 22 of the 1 12 lesions were mediastinal and 83 were pleuroparenchymal. a large-bore 14-gauge tru-cut needle was used in all patients. adequate specimens for histologic examination were obtained in 98%. the overall accuracy was 91 % with 9% false negative and no false positive diagnoses. despite the large size of the needle, the total number of complication...

We developed a novel coaxial system using a fine guide needle wire (GNW) to safely and easily place the radiofrequency needle under CT-guidance. The GNW consists of a fine needle (diameter, 21-gauge; length, 150 mm) and a wire (0.018 inch, 250 mm). An exclusive radiofrequency cannula (14-gauge; 160 mm) was also used. This system was used for the treatment of six hepatocellular carcinomas in six...

We performed a prospective study of hospice in-patients requiring a syringe driver (SD), to determine the site duration and tolerability of metal butterfly needles compared to Teflon cannulae. Using patients as their own control, prescribed medications were divided equally between two SDs (Graseby MS16a), for delivery over 24 h. A butterfly infusion (Flosafer, 25 gauge) was connected to one SD ...

• Clinical use of a 1.2 Tesla open system for MRI-guided intervention is awaited. Needle artifact characteristics using MRI are clarified phantom study. Accuracy needle insertion acceptable clinical use. To evaluate the artifacts and accuracy magnetic resonance imaging (MRI) in phantom. First, apparent width on tip position error 16- 18-gauge MRI-compatible introducer needles 17-gauge cryoneedl...

OBJECTIVE To evaluate the in vivo efficiency of the biopsy tract radiofrequency ablation for hemostasis after core biopsy of the liver in a porcine liver model, including situations with bleeding tendency and a larger (16-gauge) core needle. MATERIALS AND METHODS A preliminary study was performed using one pig to determine optimal ablation parameters. For the main experiment, four pigs were a...

Hyaluronic acid gel is a commonly used skin/soft tissue filler in cosmetic dermatology. Hyaluronic acid fillers are packaged in proprietary luer-lock syringes that can be injected via a 30-gauge, 27-gauge or larger diameter needle depending on the consistency of the gel. A method of decanting proprietary hyaluronic acid fillers into multiple 31-gauge insulin syringes for injection is described....

OBJECTIVES Local anesthetic infiltration is also a process of a painful process itself. INJEX™ technology, known as "Needle-free" drug delivery system, was designed for reducing the pain associated with cutaneous procedures. We conducted a prospective, randomized trial to evaluate the application of lidocaine with INJEX™ system and 27-gauge needle. METHODS A total of 60 consecutive patients w...