Syringe system
First Claim
1. A medical device capable of creating a cloud of injectate, in tissue, having a predetermined shape, size and concentration, the device comprising:
- an elongate member having a side wall defining a central lumen and having a distal end and a proximal end, the proximal end operably attachable to an injectate providing catheter such that said catheter is in fluid communication with said lumen;
a plurality of holes defined by said side wall and extending from said lumen to an exterior of said side wall;
wherein each of said holes is constructed and arranged to act in concert with each of the other holes to create said shaped cloud when said injectate is forced through said lumen.
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Accused Products
Abstract
A medical device is provided having a needle or a catheter, insertable into a living body, which defines a plurality of holes in fluid communication with a central lumen. The holes may be of various patterns located and angled to create a desired injectate cloud pattern when an injectate is forced through the central lumen and through the plurality of holes. One embodiment provides various designs including a moveable sheath or stylet used to selectively occlude one or more of the holes while in use, thereby providing an operating physician a way to manipulate the cloud pattern anytime during the introduction of the injectate. A reducer may be used in conjunction with these needles which provides an increased degree of control when injecting very small quantities of fluid.
140 Citations
20 Claims
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1. A medical device capable of creating a cloud of injectate, in tissue, having a predetermined shape, size and concentration, the device comprising:
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an elongate member having a side wall defining a central lumen and having a distal end and a proximal end, the proximal end operably attachable to an injectate providing catheter such that said catheter is in fluid communication with said lumen;
a plurality of holes defined by said side wall and extending from said lumen to an exterior of said side wall;
wherein each of said holes is constructed and arranged to act in concert with each of the other holes to create said shaped cloud when said injectate is forced through said lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification