Injector Or Aspirator Syringe Supported Only By Person During Use (e.g., Hand Held Hypodermic Syringe, Douche Tube With Forced Injection, Etc.) Patents (Class 604/187)
- Used as piston actuator after removal from conduit covering or protecting position on syringe (Class 604/193)
- Entire body entering conduit stored in cavity in piston or piston actuator inside syringe prior to use (Class 604/194)
- Portion of body entering conduit stored in material receiving syringe reservoir (Class 604/195)
- Common cover or protector for body entering conduit and material syringe reservoir (Class 604/197)
- Cover or protector for body entering conduit movable axially relative to one another (Class 604/198)
- Septum pierced by conduit to permit flow (Class 604/201)
- Septum flexed toward conduit to force conduit therethrough (Class 604/202)
- Septum pierced is piston head (Class 604/203)
- Septum within collapsible material reservoir (Class 604/204)
- Septum piercing conduit separate from body entering conduit (Class 604/205)
- Septum piercing conduit attached to injector by turning one component relative to another (e.g., thread, bayonet type connector, etc.) (Class 604/206)
- Diameter of piston selectively adjustable (Class 604/219)
- Means for preventing accidental displacement of piston (Class 604/220)
- Piston or piston actuator slidable in or against seal ring mounted on reservoir (Class 604/221)
- Seal ring mounted on piston (Class 604/222)
- Injector components pivoted relative to each other to move piston (Class 604/223)
- Piston moved by screw or rack (Class 604/224)
- Means for preventing destructive piston impact on end of material reservoir (Class 604/225)
- Closable storage cavity included in piston or piston actuator (Class 604/226)
- Specific structure of finger grip for moving piston (Class 604/227)
- Specific structure of means coupling piston to piston actuator (Class 604/228)
- Piston actuator contacting resilient retractable portion on piston (Class 604/229)
- Means for reducing piston sliding friction (e.g., oil applicator, use of low friction material, etc.) (Class 604/230)
- Material passed to or from body through aperture in piston (Class 604/231)
- Material reservoir (e.g., cartridge, etc.) removably mounted in syringe (Class 604/232)
- Material flow controlled by valve or movable closure (e.g., plug in orifice, etc.) (Class 604/236)