Peroral Cholecystoscopy with a Shape-Memorizing Alloy Catheter
نویسندگان
چکیده
منابع مشابه
Modeling of a Shape Memory Alloy Active Catheter
Shape memory alloys (SMAs) have interesting properties for application in adaptive structures, and many researchers have already explored their possibilities. However, the complex behavior of the material makes the development of SMA adaptive structures a challenging task. It is generally accepted that systematic, model-based design approaches and design optimization techniques can be of great ...
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It is difficult to distinguish malignant gallbladder diseases from benign ones preoperatively, even though appropriate imaging techniques have been developed [1]. Therefore complementary techniques which facilitate direct visual assessment and visually guided tissue sampling are desirable.Wedescribe the first case of gallbladder cholesterolosis successfully visualized and diagnosed by peroral c...
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BACKGROUND Patients with end-stage liver disease have an increased risk of symptomatic gallstone disease, as well as complications associated with cholecystectomy. We hypothesized that peroral transpapillary cholecystoscopy with electrohydraulic lithotripsy of gallbladder stones is technically feasible and beneficial in patients who are high operative risks. DESIGN Observational, descriptive....
متن کامل[Placement of a shape-memory alloy intraurethral catheter (Memokath) using transrectal ultrasonography and fluoroscopy].
Intraurethral catheters are effective in the treatment of elderly patients with benign prostate hyperplasia (BPH) who have severe complications. However, it is not easy to measure the length of the prostatic urethra and to determine an appropriate location for the urethral catheter using only fluoroscopy, especially in patient with severe mid-lobe enlargement. We attempted to place a shape-memo...
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We propose a new display for presenting 3D forms using a pin-rod matrix. Due to a long range of movement, it is capable of displaying large-scale, dense objects such as human faces or geographical features. In this work, we use a coil-form Shape Memory Alloy (SMA) as a pinrod actuator. The prototype has a 4×4 pin-rod matrix, with a 120[mm] range of motion (which is longer than previous works), ...
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ژورنال
عنوان ژورنال: Endoscopy
سال: 1995
ISSN: 0013-726X,1438-8812
DOI: 10.1055/s-2007-1005726