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US 2003/0216770 A1Published application
Apparatus and method for making a percutaneous access port of variable size
OwnerMaxim D. Persidsky, Andre M. Persidskyinventors
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OwnerMaxim D. Persidsky, Andre M. Persidskyinventors
Estimating the term…
A device for creating a percutaneous access port of variable size through dilation of an initial percutaneous penetration in a body cavity wall. The device includes an insufflation and access needle for producing an initial puncture within the body cavity wall, a tubular dilator having an axial length, distal end for insertion within the body cavity wall and a proximal end for extending outside the body cavity wall during creation of the percutaneous access port. The tubular dilator has a single piece tubular body having a stem section between its distal and proximal ends and an expanded funnel-shaped surface at its proximal end. The tubular dilator can be releasably attached to the insufflation and access needle at its distal end into an axial compression device at its funnel-shaped proximal end. The axial compression device can apply reversible axial compression force upon the tubular dilator to change its axial length resulting in selective and reversible radial dilation of the device and resulting puncture.
A device for creating a percutaneous access port of variable size through dilation of an initial percutaneous penetration in a body cavity wall, said device comprising an insufflation and access needle for producing an initial puncture within the body cavity wall, a tubular dilator having an axial length, a distal end for insertion within said body cavity wall and a proximal end for extending outside of said body cavity wall during creation of said percutaneous access port, said tubular dilator comprising a tubular body having a stem section between said distal and proximal ends and having an expanded funnel-shape surface proximate its proximal end, means for releasably attaching the distal end of said tubular dilator to said insufflation and access needle, axial compression means for removably supporting said insufflation and access needle, said axial compression means being fixedly engaged to the proximal end of said tubular dilator and including means for creating an axial compressive force upon said tubular dilator to vary the axial length of said tubular dilator resulting in selective radial dilation thereof.
A device for creating a percutaneous access port of variable size through dilation of an initial percutaneous penetration in a body cavity wall, said device comprising an insufflation and access needle producing an initial puncture within the body cavity wall, a tubular dilator having an axial length, a distal end for insertion within said body cavity wall and a proximal end attached to a funnel-shaped connector, said funnel-shaped connector sized for connecting said tubular dilator to an axial compression means, means for releasably attaching the distal end of said tubular dilator to said insufflation and access needle and axial compression means for removably supporting said insufflation and access needle, said axial compression means including means for creating an axial compressive force upon said tubular dilator to vary the axial length of said tubular dilator resulting in selective radial dilation thereof.
A tubular dilator for insertion within and expansion of a percutaneous access port, said tubular dilator comprising a tube having been laser cut producing a matrix of connected parallelograms, weakened at their joints to provide for radial expansion upon axial compression of said tube.
Dependencies are inferred from the claim text.