Abstract:
The invention provides a an image guided whole body stereotactic needle placement device, for inserting needles or any such medical devices at a desired precise point in a body. The device is used under image guidance obtained from cross sectional imaging by Computerized Tomography and Magnetic Resonance Imaging.The device has a circular base plate, a semicircular rotating arc that rotates on the base plate, a needle guide that guides the needle placed in a needle sizing tube, a needle guide cover, and a locking pin that locks the needle guide cover to the needle guide.The device enables immediate detachment of the needle from the device enabling use also in body parts that move with respiration. The device is light weight and small with fixation mechanism to the body such that it can also be used even in newly born.
Abstract:
The subject invention is an image guided, Computerized Tomography and Magnetic Resonance Imaging compatible device for inserting needle or any such medical device at a desired place in the body.The subject invention comprises a circular base plate, a supporting ring that is placed in a groove in the base plate, an arc, a needle guide that slides on the arc, a screw which fixes the arc with the supporting ring and the circular base plate and a locking pin which fixes the arc with the supporting ring in such a way that the arc becomes perpendicular to the circular base plate. When the locking pin is removed, this allows the arc to fall and thus frees the needle placed to move with breathing without hindrance from the subject invention, enabling placement of needle also in body parts that move with breathing.
Abstract:
The present invention provides an Image guided whole body stereotactic needle placement device with falling arc (3), comprising a circular base plate (1), a circular supporting ring (2) that is placed in the groove (8) in base plate (1) for supporting ring 2), a carrying arc (3) for needle guide (6) which has a foot (23) on either side, a fixing screw (4) which fixes the carrying arc (3) for the needle guide (6) with the supporting ring (2) and the base plate (1), a locking pin (29) which fixes the carrying arc (3) for needle guide (6) with the supporting ring (2) making the carrying arc (3) for the needle guide (6) perpendicular to the base plate (1) and a needle guide (6) that slides on the superior surface of the carrying arc (3) for the needle. This device is both CT and MR compatible, and can be used for precisely positioning a needle tip at a particular point inside the body. The needle can be used for taking tissue samples/delivering drugs/delivering energy to ablate tissues/aspirating cystic lesions. The patient has to hold breath while the needle is being passed into regions that move on respiration. This device has a falling arc that allows quick release of the needle after placement, so as to quickly allow free breathing for the patient. This feature allows utilisation of this device in chest and abdomen also. The device can be placed on the skin or on the exposed organ during surgery. The device is light weight, small and can be used in patients of any age.