Extractor for childbirth and aspirator/injector device

A manually operable medical device comprising,

• means forming a cylinder with an axis,
• a medical tool attached to said cylinder means,
• means forming a duct leading from said medical tool to one end of said cylinder means to provide fluid communication between said tool and said one end of said cylinder means by way of said duct means,
• a piston having an axis being mounted to reciprocate coaxially in said cylinder means and configured to reciprocate in said cylinder means in response to manually applied force to an end of said piston most remote from said one end of said cylinder means, said piston including a handle at said remote end, said handle extending transverse to said axes,
• a rigid closed loop connected to said cylinder means and circumscribing said handle, said loop including a surface for palm contact by an operator of said device upon said operator moving said piston to draw a vacuum in said cylinder means by engagement of said handle by the fingers of said operator,
• a first check valve in said duct means, said first check valve being configured to prevent fluid flow from said cylinder means to said tool,
• means forming an opening from said duct means, said opening means being located intermediate said first check valve and said cylinder means,
• a second check valve means located in said opening means and configured to allow fluid flow from said cylinder means.

A manually operable medical device comprising,

• means forming a cylinder with an axis,
• a medical tool attached to said cylinder means,
• means forming a duct leading from said medical tool to one end of said cylinder means to provide fluid communication between said tool and said one end of said cylinder means by way of said duct means,
• a piston having an axis being mounted to reciprocate coaxially in said cylinder means and configured to reciprocate in said cylinder means in response to manually applied force to an end of said piston most remote from said one end of said cylinder means, said piston including a handle at said remote end, said handle extending transverse to said axes,
• a rigid closed loop connected to said cylinder means and circumscribing said handle, said loop including a surface for palm contact by an operator of said device upon said operator moving said piston to draw a vacuum in said cylinder means by engagement of said handle by the fingers of said operator,
• a spring engaging said loop for biasing said piston toward said one end of said cylinder means.

A manually operable medical device comprising,

• means forming a cylinder with an axis,
• a medical tool attached to said cylinder means,
• means forming a duct leading from said medical tool to one end of said cylinder means to provide fluid communication between said tool and said one end of said cylinder means by way of said duct means,
• a piston having an axis being mounted to reciprocate coaxially in said cylinder means and configured to reciprocate in said cylinder means in response to manually applied force to an end of said piston most remote from said one end of said cylinder means, said piston including a handle at said remote end, said handle extending transverse to said axes,
• a rigid closed loop connected to said cylinder means and circumscribing said handle, said loop including a surface for palm contact by an operator of said device upon said operator moving said piston to draw a vacuum in said cylinder means by engagement of said handle by the fingers of said operator,
• a valve to open the duct means to atmospheric pressure to relieve the vacuum without moving said piston.