Pharmaceutical storage and mixing syringe having high pressure assisted discharge
First Claim
1. A hand held pharmaceutical storage and mixing syringe having high pressure assisted discharge comprising:
- first and second relatively moveable handles constructed for movement relative to one another;
a jell storage chamber having a dispensing opening and parallel sidewalls affixed to said first handle for coaction with a moving jell storage chamber piston;
a diluent storage chamber having an outlet at one end with parallel sidewalls and a diluent displacing piston;
means for defining a one way fluid flow path from said diluent storage chamber outlet to said jell storage chamber;
means for moving said diluent displacing piston toward said diluent outlet connected for actuation by relative movement between said handles to expel diluent from said diluent storage chamber to said jell storage chamber;
a moveable jell storage chamber piston affixed to said second handle having a perimeter for movement along the walls of said jell storage chamber responsive to movement between said handles,means for providing said jell storage chamber piston with an expansible perimeter, said means providing to said piston a first normally contracted perimeter for causing fluid within said jell storage chamber to flow between the sides of said jell storage chamber and said piston to effect mixing of the contents within said jell storage chamber and a second expanded disposition for expelling the contents of said jell storage chamber under pressure;
means for containing mixed diluent and jell flowing by said piston during mixing movement of said piston in said jell storage chamber;
a dispensing passageway from said jell chamber, said dispensing passageway having a removable seal for permitting dispensing of the contents of said jell storage chamber upon seal removal; and
,means for expanding the perimeter of said piston whereby when said handles are moved relative to one another expulsion of the contents of said jell chamber occurs.
1 Assignment
0 Petitions
Accused Products
Abstract
A hand held syringe has a stationary handle and a moving handle to enable both stored and transported pharmaceuticals to be mixed and injecting the mixed pharmaceuticals under high pressure immediately after mixing through a long needle to a site interior of the body. The syringe is provided for squeeze grip at the stationary and moving handles between fingers and palm and includes a jell storage chamber side-by-side with a diluent storage chamber. Upon initial compression of the handles towards one another against a spring bias, the diluent discharges to the jell mix chamber along a one way path. At the same time, a handle actuated piston with loosely fitting O-ring in the jell mix chamber moves through the jell and introduced diluent effecting mixing movement by allowing the jell and diluent to flow between the piston and jell chamber sidewalls. Flow occurs from the jell chamber by the piston to an expansible chamber delimited by a floating seal. When injection is desired, the syringe is fully expanded against the spring bias and an O-ring on the reciprocating piston is tightened to radially dilate the O-ring to effect sealed wiping of the jell chamber. When full dilation of the O-ring has occurred, the long needle replaces a sealing plug at the distal end of the jell chamber of the syringe and injection occurs under the full squeeze force developed by the digits against the human palm.
-
Citations
29 Claims
-
1. A hand held pharmaceutical storage and mixing syringe having high pressure assisted discharge comprising:
-
first and second relatively moveable handles constructed for movement relative to one another; a jell storage chamber having a dispensing opening and parallel sidewalls affixed to said first handle for coaction with a moving jell storage chamber piston; a diluent storage chamber having an outlet at one end with parallel sidewalls and a diluent displacing piston; means for defining a one way fluid flow path from said diluent storage chamber outlet to said jell storage chamber; means for moving said diluent displacing piston toward said diluent outlet connected for actuation by relative movement between said handles to expel diluent from said diluent storage chamber to said jell storage chamber; a moveable jell storage chamber piston affixed to said second handle having a perimeter for movement along the walls of said jell storage chamber responsive to movement between said handles, means for providing said jell storage chamber piston with an expansible perimeter, said means providing to said piston a first normally contracted perimeter for causing fluid within said jell storage chamber to flow between the sides of said jell storage chamber and said piston to effect mixing of the contents within said jell storage chamber and a second expanded disposition for expelling the contents of said jell storage chamber under pressure; means for containing mixed diluent and jell flowing by said piston during mixing movement of said piston in said jell storage chamber; a dispensing passageway from said jell chamber, said dispensing passageway having a removable seal for permitting dispensing of the contents of said jell storage chamber upon seal removal; and
,means for expanding the perimeter of said piston whereby when said handles are moved relative to one another expulsion of the contents of said jell chamber occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for hand held pharmaceutical storage, mixing and syringe injection with high pressure assisted discharge comprising:
-
providing first and second relatively moving actuators for relative movement to one another; providing a jell storage chamber having a dispensing opening and parallel sidewalls affixed to said first actuator for coaction with a moving jell storage chamber piston; providing a diluent storage chamber having an outlet at one end with parallel sidewalls for coaction with a diluent displacing piston; defining a one way fluid flow path from said diluent storage chamber outlet to said jell storage chamber; displacing said diluent displacing piston toward said diluent outlet to expel diluent from said diluent storage chamber to said jell storage chamber; providing a moveable jell storage chamber piston affixed to said second actuator having a perimeter for movement along the walls of said jell storage chamber responsive to movement between said actuators; providing said jell storage chamber piston with an expansible perimeter, including a first normally contracted perimeter for causing fluid within said chamber to flow between the sides of said jell storage chamber and said piston to effect mixing of the contents within said jell storage chamber and a second expanded disposition for expelling the contents of said jell storage chamber under pressure; containing mixed diluent and jell flowing by said piston during mixing movement of said piston in said jell storage chamber; providing a dispensing passageway from said jell chamber including, said dispensing passageway having a removable seal for permitting dispensing of the contents of said jell storage chamber upon seal removal; moving said actuators towards and away from one another with said piston having said perimeter in said normal contracted state to mix said diluent and jell; expanding the perimeter of said piston; removing said seal from said dispensing passageway; and
,moving said actuators relative to one another until expulsion of the contents of said jell chamber occurs. - View Dependent Claims (12, 13)
-
-
14. A hand held pharmaceutical storage and mixing syringe having high pressure assisted discharge comprising:
-
first and second relatively moving actuators for relative movement to one another; a first pharmaceutical storage chamber having a dispensing opening and parallel sidewalls affixed to said first actuator for coaction with a first pharmaceutical storage chamber piston; a second pharmaceutical displacing piston; a second pharmaceutical storage chamber having an outlet at one end with parallel sidewalls for coaction with said second pharmaceutical displacing piston; means for defining a one way fluid flow path from said second pharmaceutical storage chamber outlet to said first pharmaceutical storage chamber; means for moving said second pharmaceutical displacing piston toward said second pharmaceutical outlet connected for actuation by relative movement between said actuators to expel second pharmaceutical from said second pharmaceutical storage chamber to said first pharmaceutical storage chamber; a moveable first pharmaceutical storage chamber piston affixed to said second actuator having an perimeter for movement along the walls of said first pharmaceutical storage chamber responsive to movement between said actuators; means for providing said first pharmaceutical storage chamber piston with an expansible perimeter, said means providing to said piston a first normally contracted perimeter for causing fluid within said chamber to flow between the sides of said first pharmaceutical storage chamber and said piston to effect mixing of the contents within said first pharmaceutical storage chamber and a second expanded disposition for expelling the contents of said first pharmaceutical storage chamber under pressure; means for containing mixed second pharmaceutical and first pharmaceutical flowing by said piston during mixing movement of said piston in said first pharmaceutical storage chamber; a dispensing passageway from said first pharmaceutical chamber, said dispensing passageway having a removable seal for permitting dispensing of the contents of said first pharmaceutical storage chamber upon seal removal; and
,means for expanding the perimeter of said piston whereby when said actuators are moved relative to one another expulsion of the contents of said chamber occurs. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
-
-
15. A hand held pharmaceutical storage and mixing syringe having high pressure assisted discharge comprising:
-
first and second relatively moving actuators for relative movement to one another; a first pharmaceutical storage chamber having a dispensing opening and parallel sidewalls affixed to said first actuator for coaction with a moveable first pharmaceutical storage chamber piston; a first pharmaceutical in said first pharmaceutical storage chamber; a second pharmaceutical storage chamber having an outlet at one end with parallel sidewalls and a second pharmaceutical displacing piston; a second pharmaceutical in said second pharmaceutical storage chamber; means for defining a one way fluid flow path from said second pharmaceutical storage chamber outlet to said first pharmaceutical storage chamber; means for moving said second pharmaceutical displacing piston toward said second pharmaceutical outlet connected for actuation by relative movement between said actuators to expel second pharmaceutical from said second pharmaceutical storage chamber to said first pharmaceutical storage chamber; a moveable first pharmaceutical storage chamber piston affixed to said second actuator having an perimeter for movement along the walls of said first pharmaceutical storage chamber responsive to movement between said actuators; means for providing said first pharmaceutical storage chamber piston with an expansible perimeter, said means providing to said first piston a first normally contracted perimeter for causing fluid within said chamber to flow between the sides of said first pharmaceutical storage chamber and said piston to effect mixing of the contents within said first pharmaceutical storage chamber and a second expanded disposition for expelling the contents of said first pharmaceutical storage chamber under pressure; means for containing mixed second pharmaceutical and first pharmaceutical flowing by said piston during mixing movement of said piston in said first pharmaceutical storage chamber; a dispensing passageway from said first pharmaceutical chamber, said dispensing passageway having a removable seal for permitting dispensing of the contents of said first pharmaceutical storage chamber upon seal removal; and
,means for expanding the perimeter of said piston whereby when said actuators are moved relative to one another expulsion of the contents of said first pharmaceutical chamber occurs. - View Dependent Claims (24, 25, 26)
-
-
16. A method for hand held pharmaceutical storage, mixing and syringe injection with high pressure assisted discharge where the syringe includes:
-
first and second relatively moving actuators for relative movement to one another; a first pharmaceutical storage chamber having a dispensing opening and parallel sidewalls affixed to said first actuator for coaction with a moveable first pharmaceutical storage chamber piston; a second pharmaceutical storage chamber having an outlet at one end with parallel sidewalls and a second pharmaceutical displacing piston; a one way fluid flow path from said second pharmaceutical storage chamber outlet to said first pharmaceutical storage chamber; a first pharmaceutical in said first pharmaceutical storage chamber; a second pharmaceutical in said second pharmaceutical storage chamber; said method comprising the steps of; displacing said second pharmaceutical displacing piston toward said second pharmaceutical outlet to expel second pharmaceutical from said second pharmaceutical storage chamber to said first pharmaceutical storage chamber; providing a moveable first pharmaceutical storage chamber piston affixed to said second actuator having an perimeter for movement along the walls of said first pharmaceutical storage chamber responsive to movement between said actuators; providing said first pharmaceutical storage chamber piston with an expansible perimeter, said means providing to said piston a first normally contracted perimeter for causing fluid within said chamber to flow between the sides of said first pharmaceutical storage chamber and said piston to effect mixing of the contents within said first pharmaceutical storage chamber and a second expanded disposition for expelling the contents of said first pharmaceutical storage chamber under pressure; containing mixed second pharmaceutical and first pharmaceutical flowing by said piston during mixing movement of said piston in said first pharmaceutical storage chamber; providing a dispensing passageway from said first pharmaceutical chamber, said dispensing passageway having a removable seal for permitting dispensing of the contents of said first pharmaceutical storage chamber upon seal removal; moving said actuators towards and away from one another with said piston having said perimeter in said normal contracted state to mix said second pharmaceutical and first pharmaceutical; expanding the perimeter of said piston; removing said seal from said dispensing passageway; and
,moving said actuators relative to one another until expulsion of the contents of said first pharmaceutical chamber occurs. - View Dependent Claims (27, 28, 29)
-
Specification