Ampule-container medical syringe and methods

A method for using an ampule-container syringe consisting of:

• a syringe barrel with a syringe bore having an injection conveyance in fluid communication with a sealable luer for attaching hypodermic needles at an injection end and suitable gripping means at a plunger-receiving end with a plunger-receiving orifice;
• a syringe plunger insertable into the syringe bore through the plunger receiving orifice;
• a hollow plunger shaft having flexible walls defining a plunger bore sized and shaped to receive desired sizes and shapes of ampules in desired size relationships between the plunger bore and the ampules;
• a plunger tip in sliding-seal relationship to inside peripheral walls of the syringe bore;
• a tip port having a one-way valve in one-way valved relationship to flow of fluid from inside of the hollow plunger into the syringe bore;
• suitable plunger gripping means and an ampule-insertion orifice at a handle end of the syringe plunger;
• and
• a restraining means for preventing escape of an ampule positioned in the hollow plunger shaft;
• comprising the following steps:
• positioning an ampule containing sterile preparation in a plunger-shaft bore of the syringe;
• sealing the plunger-shaft bore with a breakable retaining cover;
• storing the sterile preparation in the syringe bore of the syringe plunger of the syringe until a desired time before use;
• positioning the syringe plunger in relationship to the syringe barrel such that a desired portion of flexible walls of the plunger shaft are exposed outside of the syringe bore;
• positioning the syringe with the sealable luer in sealed condition lower than the plunger-bore plate;
• hand-squeezing the flexible walls of the plunger shaft sufficiently to break the ampule within the plunger-shaft bore;
• removing a pressure-equalizer cover from the plunger-bore plate;
• allowing the sterile preparation to flow from the broken ampule into the syringe bore by means of a vacuum in the syringe bore and in the plunger bore in negative-pressure relationship to a fluid head of the sterile preparation;
• reversing position of the syringe to where the sealable luer is above the plunger-bore plate;
• unsealing the sealable luer,
• attaching a hypodermic needle to the sealable luer;
• aspirating the syringe;
• injecting the sterile preparation from the syringe as desired;
• and
• discarding the syringe appropriately.

A method for using an ampule-container syringe consisting of:

• a syringe barrel with a syringe bore having an injection conveyance in fluid communication with a sealable luer for attaching hypodermic needles at an injection end and suitable gripping means at a plunger-receiving end with a plunger-receiving orifice;
• a syringe plunger insertable into the syringe bore through the plunger receiving orifice;
• a hollow plunger shaft having flexible walls defining a plunger bore sized and shaped to receive desired sizes and shapes of ampules in desired size relationships between the plunger bore and the ampules;
• a plunger tip in sliding-seal relationship to inside peripheral walls of the syringe bore;
• a tip port having a one-way valve in one-way valved relationship to flow of fluid from inside of the hollow plunger into the syringe bore;
• suitable plunger gripping means and an ampule-insertion orifice at a handle end of the syringe plunger;
• a restraining means for preventing escape of an ampule positioned in the hollow plunger shaft;
• the restraining means for preventing escape of an ampule positioned in the hollow plunger shaft being an attachable plunger lid such that ampules of sterile preparations can be stored separately from ampule-container syringes and then placed in plunger bores of the plunger shafts and the plunger lids are attached when the ampule-container syringe is used;
• comprising the following steps:
• storing sterile preparation in an ampule separately from the ampule-container syringe;
• positioning an ampule containing sterile preparation in a plunger bore at a desired time before use of the sterile preparation;
• sealing the plunger-shaft bore with the attachable plunger lid;
• positioning the syringe plunger in relationship to the syringe barrel such that a desired portion of flexible walls of the plunger shaft are exposed outside of the syringe bore;
• positioning the syringe with the sealable luer in sealed condition lower than the plunger-bore plate;
• hand-squeezing the flexible walls of the plunger shaft sufficiently to break the ampule within the plunger-shaft bore;
• removing a pressure-equalizer cover from the plunger-bore plate;
• allowing the sterile preparation to flow from the broken ampule into the syringe bore by means of a vacuum in the syringe bore and in the plunger bore in negative-pressure relationship to a fluid head of the sterile preparation;
• reversing position of the syringe to where the sealable luer is above the plunger-bore plate;
• unsealing the sealable luer,
• attaching a hypodermic needle to the sealable luer;
• aspirating the syringe;
• and
• injecting sterile preparation from the syringe as desired.