Cannula with lateral access and directional exit port
First Claim
Patent Images
1. A cannula system comprising:
- a cannula comprising;
a handle and a cannula shaft, the handle comprising a handle body having a proximal portion and a distal portion, the cannula shaft comprising an elongate tubular body having a proximal end depending from the distal portion of the handle body, a distal end terminating in a pointed tip, and a longitudinal axis extending therethrough,the handle further comprising a first entry port in fluid communication with a first lumen,the cannula shaft further having an inner wall defining a first channel, the first channel having a proximal end and a distal end, the proximal end of the first channel in fluid communication with the first lumen of the handle body, the distal end of the first channel in fluid communication with a first side distal exit port and spaced apart from the distal end of the elongate body, at least a portion of the inner wall adjacent the first side distal exit port configured to laterally deflect the first channel at the first channel'"'"'s distal end with respect to the longitudinal axis of the elongate body to transition the first channel'"'"'s distal end to the first side distal exit port; and
a bone tamp comprising a rod having a distal end, at least a portion sufficiently flexible for the distal end of the rod to extend out of the first side distal exit port when the rod is inserted in the first entry port to a length greater than a distance between the first entry port and the first side distal exit port.
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Abstract
The present invention generally provides a cannula system that is readily maneuverable in an operating room setting, can be used to expose different instrumentalities to a target site, and has directional capabilities to allow the user to treat multiple quadrants or areas of a target site. The present invention provides cannula systems including these different instrumentalities as well as methods of operating these cannula systems and methods of treating orthopedic conditions using these cannula systems.
104 Citations
24 Claims
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1. A cannula system comprising:
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a cannula comprising; a handle and a cannula shaft, the handle comprising a handle body having a proximal portion and a distal portion, the cannula shaft comprising an elongate tubular body having a proximal end depending from the distal portion of the handle body, a distal end terminating in a pointed tip, and a longitudinal axis extending therethrough, the handle further comprising a first entry port in fluid communication with a first lumen, the cannula shaft further having an inner wall defining a first channel, the first channel having a proximal end and a distal end, the proximal end of the first channel in fluid communication with the first lumen of the handle body, the distal end of the first channel in fluid communication with a first side distal exit port and spaced apart from the distal end of the elongate body, at least a portion of the inner wall adjacent the first side distal exit port configured to laterally deflect the first channel at the first channel'"'"'s distal end with respect to the longitudinal axis of the elongate body to transition the first channel'"'"'s distal end to the first side distal exit port; and a bone tamp comprising a rod having a distal end, at least a portion sufficiently flexible for the distal end of the rod to extend out of the first side distal exit port when the rod is inserted in the first entry port to a length greater than a distance between the first entry port and the first side distal exit port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A cannula system comprising:
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a cannula comprising a handle and a cannula shaft, the handle comprising a handle body having a proximal portion and a distal portion and further comprising;
a top entry port in fluid communication with a first lumen having a first longitudinal axis extending therethrough;a side entry port in fluid communication with a second lumen having a second longitudinal axis extending therethrough which intersects with the first longitudinal axis of the first lumen; and the cannula shaft comprising an elongate body having a proximal end, a distal end, and a longitudinal axis extending therethrough, the proximal end of the elongate body depending from the distal portion of the handle body and the distal end of the elongate body terminating in a pointed tip, the elongate body further having; an inner wall defining a channel, the channel having a proximal end and a distal end, the proximal end in fluid communication with the first and second lumens of the handle and the distal end of the channel in fluid communication with a side distal exit port, the distal end of the channel spaced apart from the distal end of the elongate body, the inner wall configured to laterally deflect the channel at its distal end with respect to the longitudinal axis of the elongate body of the cannula shaft to transition the channel'"'"'s distal end to the side distal exit port; and a deflector that is removably received in a lateral opening, wherein a distal end of the deflector extends into the first lumen, and the distal end of the deflector has a surface that is angled or curved with respect to the first and second longitudinal axes. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A cannula system comprising:
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a cannula comprising; a handle and a cannula shaft, the handle comprising a handle body having a proximal portion and a distal portion, the cannula shaft comprising an elongate tubular body having a proximal end depending from the distal portion of the handle body, a distal end terminating in a pointed tip, and a longitudinal axis extending therethrough, the handle further comprising a first entry port in fluid communication with a first lumen, the cannula shaft further having an inner wall defining a first channel, the first channel having a proximal end and a distal end, the proximal end of the first channel in fluid communication with the first lumen of the handle body, the distal end of the first channel in fluid communication with a first side distal exit port and spaced apart from the distal end of the elongate body, a bone tamp comprising a flexible rod having a distal end; and means for urging the distal end of the rod through the first side distal exit port when the rod is inserted in the first entry port a length greater than a distance between said first entry port and said first side distal exit port and for applying pressure with the distal end of the rod to bone adjacent the side distal port.
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Specification