Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2005-12-06
2005-12-06
Kennedy, Sharon (Department: 3762)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S186000
Reexamination Certificate
active
06972006
ABSTRACT:
A syringe device incorporating ridges that cause resistive changes to the movement of the syringe gasket or plunger, thereby providing user feedback as to the position and speed of plunger movement. Such user feedback may be useful in stressful situations, under poor lighting conditions or in other unfavorable circumstances. Additionally, in certain embodiments these ridges may aid in accurate dispension or allow the syringe to derive additional functionality, such as performing as a vacuum source. Ridges can be protrusions such as tabs, bubbles or continuous rings for single or repeated use or these ridges may be formed as indentations. Ridges may be formed in patterns, in various sizes and shapes or these ridges may be mixed and matched as required or desired. Ridges may also be formed from a soluble material and the resistive change may itself provide indication that the material has been substantially dissolved and dispensed. In some embodiments these ridges are formed primarily within the barrel portion of the syringe. In other embodiments these ridges may be formed on the plunger stem of the syringe. Ridges may be constructed to provide one type of resistive change during the aspiration stroke and a different resistive change to motion in the opposite direction.
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International Search Report dated Jan. 22, 2004.
G6 Science Corp.
Kennedy Sharon
Trexler, Bushnell, Giangiorgi & Blackstone & Marr, Ltd
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