| Patent application number | Description | Published |
|---|
| 20080225410 | Optical assembly for medical imaging devices - Optical assemblies for use in medical or other devices so as to image an object under examination onto an image sensor include a plurality of lens elements that can be retained in lens barrel. The lens elements and the lens barrel can be sealed with a compressible gasket. In one example, at least one lens element is made of an injection-moldable plastic and at least one lens element is made of a relatively dispersive optical glass. A lens barrel diameter or lens diameter can be selected to permit access to the object under examination with surgical or other tools. Aperture plates can be situated so as to reduce flare in the object image. | 09-18-2008 |
| 20090198212 | Endoscopic injection needle assembly inluding an endoscopic hood - An endoscopic injection needle assembly and method of using the same. According to one embodiment, the assembly includes an endoscope, an injection needle, an endoscopic hood and a suction source. The endoscope is shaped to include a proximal end, a distal end, and a plurality of longitudinal channels. The distal end of the injection needle is positioned within a working channel of the endoscope. The injection needle is sized relative to the working channel to permit fluid to flow around the injection needle in the working channel. The endoscopic hood is mounted on the distal end of the endoscope and extends distally therefrom, the endoscopic hood being in fluid communication with the working channel and having an opening through which fluid may be drawn into the endoscopic hood. The suction source is applied to the proximal end of the working channel to cause fluid to be drawn into the endoscopic hood through the opening and then proximally through the working channel. In addition, suction causes tissue to be drawn into the endoscopic hood. The injection needle may then be operated to penetrate the suctioned tissued. | 08-06-2009 |
| 20090270895 | LOW ADVANCE RATIO, HIGH RECIPROCATION RATE TISSUE REMOVAL DEVICE - Disclosed is a tissue removal device having an outer tube with a resection window and an inner tube disposed within the outer tube. The inner tube is slidable and rotatable relative to the outer tube so that the distal end of the inner tube moves back and forth across the resection window to sever tissue extending therethrough. The inner tube may be driven to rotate at a speed of at least about 1100 rpm, to axially translate at a rate of at least about 1.5 cps, and with an advance ratio of no more than about 0.25. The drive system for controlling axial reciprocation and rotation of the inner tube may be totally mechanical. | 10-29-2009 |
| 20090270896 | TISSUE CUTTER WITH DIFFERENTIAL HARDNESS - Disclosed is a tubular cutting element for axial reciprocal movement within an outer tubular sleeve. The cutting element has an elongate tubular body, having a proximal end, a distal end and a cutting tip. The tubular body is formed in a drawing operation and the cutting tip is formed in a milling operation. The tubular body may have a Rockwell C hardness of no more than about 40, and the cutting tip may have a Rockwell C hardness of at least about 50. | 10-29-2009 |
| 20090270897 | METHODS OF HIGH RATE, LOW PROFILE TISSUE REMOVAL - Disclosed are methods and devices for removing tissue from a site in a hollow organ, where the device has a low crossing profile and is capable of removing tissue at a high rate of speed. The device includes an elongate outer tube with a side opening and an inner tube moveably coaxially positioned within the outer tube. Tissue drawn into the side opening can be severed by moving the inner tube across the opening. Tissue may be removed through the device at a rate of at least about 1.4 cc per minute, through a lumen having a cross-sectional area of no greater than about 12.0 | 10-29-2009 |
| 20090270898 | TISSUE REMOVAL DEVICE WITH HIGH RECIPROCATION RATE - Disclosed is a tissue removal device. The device includes an outer tubular body, an inner tubular body and a cutting edge on the inner tubular body. The outer tubular body includes a window, which may be opened or closed by moving the cutting edge. The cutting edge has a hardness that exceeds the hardness of the material of the inner tube. The cutting edge may have a Rockwell C hardness of at least about 50, while the inner tube has a Rockwell C hardness of no more than about 40. The cutting edge may be formed by a milling step, and the inner tube may be formed by a drawing step. Tissue severed by the cutting edge may be removed at a rate of at least about 1.8 grams per minute through the inner tube, and the outer tubular body may have an outside diameter of no more than about 3.5 mm. | 10-29-2009 |
| 20110034943 | LOW ADVANCE RATIO, HIGH RECIPROCATION RATE TISSUE REMOVAL DEVICE - Disclosed is a tissue removal device having an outer tube with a resection window and an inner tube disposed within the outer tube. The inner tube is slidable and rotatable relative to the outer tube so that the distal end of the inner tube moves back and forth across the resection window to sever tissue extending therethrough. The inner tube may be driven to rotate at a speed of at least about 1100 rpm, to axially translate at a rate of at least about 1.5 cps, and with an advance ratio of no more than about 0.25. The drive system for controlling axial reciprocation and rotation of the inner tube may be totally mechanical. | 02-10-2011 |
| 20110077674 | TISSUE CUTTER WITH DIFFERENTIAL HARDNESS - Disclosed is a tubular cutting element for axial reciprocal movement within an outer tubular sleeve. The cutting element has an elongate tubular body, having a proximal end, a distal end and a cutting tip. The tubular body is formed in a drawing operation and the cutting tip is formed in a milling operation. The tubular body may have a Rockwell C hardness of no more than about 40, and the cutting tip may have a Rockwell C hardness of at least about 50. | 03-31-2011 |
| 20110099773 | ATTACHMENT CLAMP - Various apparatuses to attach a first medical device to a second medical device are described that allow the physician to grasp only a single device while the other device remains securely attached to the one being grasped. The apparatuses, once they are attached to the first medical device, are designed to be easily and quickly attached and detached to a second medical device, normally only requiring the use of one hand. Furthermore, the apparatuses oftentimes include a base that can easily couple and decouple from the portion that is attached to the second medical device so that if the need arises to separately use the second medical device, it can be decoupled from the first medical device without completely removing the apparatus from the second medical device. | 05-05-2011 |
