| 摘要 |
Various syringe systems are disclosed. One such syringe system may include a body having a hollow lumen and a distal end, a vacuum chamber disposed within the hollow lumen of the syringe body, a first plunger connected to a distal portion of the vacuum chamber, the first plunger forming a first seal against an inner surface of the syringe body and defining a fluid delivery volume between the first plunger and the distal end of the syringe body, a second plunger disposed within the vacuum chamber, the second plunger forming a second seal against an inner surface of the vacuum chamber and defining a proximal and distal volume compartments within the vacuum chamber, and a piston affixed to the second plunger, the piston configured to move the second plunger within the vacuum chamber, thereby altering a volume of the proximal volume compartment and a volume of the distal volume compartment. |
| 主权项 |
1. A syringe system comprising:
a syringe body comprising a hollow lumen and a distal end, the syringe body being configured to house a fluid therein; a vacuum chamber disposed within the hollow lumen of the syringe body; a first plunger connected to a distal portion of the vacuum chamber within the hollow lumen of the syringe body, the first plunger forming a first seal against an inner surface of the syringe body and defining a fluid delivery volume between the first plunger and the distal end of the syringe body; a second plunger disposed within the vacuum chamber, the second plunger forming a second seal against an inner surface of the vacuum chamber and defining a proximal volume compartment and a distal volume compartment within the vacuum chamber; and a piston affixed to the second plunger and extending proximally out of the vacuum chamber, the piston configured to move the second plunger within the vacuum chamber, thereby altering a volume of the proximal volume compartment and a volume of the distal volume compartment. |
