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48 results about "Device tip" patented technology

Steerable sphincterotome and methods for cannulation, papillotomy and sphincterotomy

The present invention relates to methods and devices for performing endoscopic cannulation, papillotomy and sphincterotomy and similar procedures. According to the present state of the art, endoscopic cannulation of the common bile duct and papillotomy and similar procedures are accomplished by advancing the device into an endoscope / duodenoscope so that the distal tip of the device exits the endoscope adjacent the sphincter muscles at the Papilla of Vater. The endoscope mechanisms are then manipulated to orient the distal tip of the device to the desired position for proper cannulation of the duct. Due to inconsistencies in, for example, the sphincterotome, anatomy, and endoscope manipulation, it is difficult to accurately and consistently position the sphincterotome for proper cannulation. The steerable sphincterotome of the present invention allows the physician to control the position of the distal tip of the device independently of the endoscope and adjust for inconsistencies in the device and the anatomy. According to the present invention, the handle to which the cutting wire is attached is freely rotatable relative to the catheter. The handle, secured to the cutting wire but rotatable relative to the shaft of the catheter, provides a mechanism to rotate the wire, transmitting the force to rotate the device tip. With the handle rotating independently of the shaft at the proximal end, the force can be applied directly to the distal tip without twisting the entire shaft. Also a rotation lock to maintain the orientation of the tip and / or a rotation marking, to indicate the amount of rotation may be included.
Owner:BOSTON SCI SCIMED INC

Steerable sphincterotome and methods for cannulation, papillotomy and sphincterotomy

The present invention relates to methods and devices for performing endoscopic cannulation, papillotomy and sphincterotomy and similar procedures. According to the present state of the art, endoscopic cannulation of the common bile duct and papillotomy and similar procedures are accomplished by advancing the device into an endoscope / duodenoscope so that the distal tip of the device exits the endoscope adjacent the sphincter muscles at the Papilla of Vater. The endoscope mechanisms are then manipulated to orient the distal tip of the device to the desired position for proper cannulation of the duct. Due to inconsistencies in, for example, the sphincterotome, anatomy, and endoscope manipulation, it is difficult to accurately and consistently position the sphincterotome for proper cannulation. The steerable sphincterotome of the present invention allows the physician to control the position of the distal tip of the device independently of the endoscope and adjust for inconsistencies in the device and the anatomy. According to the present invention, the handle to which the cutting wire is attached is freely rotatable relative to the catheter. The handle, secured to the cutting wire but rotatable relative to the shaft of the catheter, provides a mechanism to rotate the wire, transmitting the force to rotate the device tip. With the handle rotating independently of the shaft at the proximal end, the force can be applied directly to the distal tip without twisting the entire shaft. Also a rotation lock to maintain the orientation of the tip and / or a rotation marking, to indicate the amount of rotation may be included.
Owner:BOSTON SCI SCIMED INC

Syringe assembly for withdrawing two separate portions of fluid following a single engagement with fluid port

In one or more embodiments, there is a dual syringe for the collection of fluid samples which enables taking two distinct samples, and a method of use thereof. Preferably the dual syringe is for single use. Generally, the dual syringe has three components: an outer barrel; an inner barrel that fits inside the outer barrel, locks to the outer barrel and has a rubber fitting on its tip so it can function as a plunger for the outer barrel; and a plunger for the inner barrel. There is a one-way valve in a nozzle opening or passage of the inner syringe enabling inward flow only. In a method of use, an initial portion of sample fluid, e.g., from a sampling port of a bioreactor vessel, is drawn into the inner barrel of the device by pulling on the plunger. The one-way valve prevents backflow of that initial portion of sample fluid thereby protecting the ideally aseptic chamber of the outer barrel. A subsequent sample can then be collected in the outer barrel without the two samples by overcoming or otherwise unlocking the inner barrel from the outer barrel, and pulling on the inner barrel. The sample in the outer barrel is distinct from the sample in the inner barrel. Each barrel can establish direct communication with the device tip, allowing the user to draw two distinct samples that do not interact with each other.
Owner:NWADIGO CHIDOZIE O

Slag extractor used for subway construction

The invention discloses a slag extractor used for subway construction. The slag extractor comprises a crane span structure, carts are arranged on the bottoms of the two ends of the crane span structure, a trolley is arranged on the crane span structure, an electric hoist is arranged is arranged on the trolley, a hopper is hung on a lifting hook of the electric hoist, a tipping device used for tipping the hopper is arranged on the trolley and comprises a first telescopic rod, an L-shaped connecting rod, a supporting device, a vertical connecting rod and a hook, the first telescopic rod is arranged in an inclined manner, the L-shaped connecting rod is hinged to the supporting device, the supporting device is fixedly connected with the trolley, the first telescopic rod is connected with the vertical connecting rod through the L-shaped connecting rod, the vertical connecting rod is fixedly connected with the hook, and the face, close to the tipping device, of the hopper is provided with ahanging lug hooked by the hook. Slag soil is loaded into the hopper, the electric hoist on the trolley elevates the hopper to the designated height, the carts carry out conveying, the slag soil is conveyed to the designated position, the tipping device tips the hopper, the slag soil is poured out, the slag soil can be automatically conveyed and tipped, manpower and material resources are saved, and work efficiency is improved.
Owner:HENAN DONGFENG CRANE CO LTD
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