Manually operated monodose nasal sprayer device

A manually operated monodose nasal sprayer device, which comprises:

• a) an elongated main housing having a distal end adapted for partial insertion into a one of human nasal cavity and an animal nasal cavity and having a proximal end adapted to receive and hold a monodose medicine package-supporting central member, said elongated main housing having a spray discharge nozzle located at its distal end, said elongated main housing having medicine-receiving chamber connected to said nozzle and biased toward said monodose medicine package-supporting central member;
• b) said single use medicine package-supporting central member being connected to said proximal end of said elongated main housing, said central member having a distal end adapted to support a single use monodose medicine package so as to be positioned at said chamber of said elongated main housing, said single use monodose medicine package-supporting central member having a piston shaft having a piston-supporting area open at said distal end and adopted to extend a piston therein;
• c) said piston being partially located in said piston shaft, said piston having a medicine container breaking distal end, and having a downwardly extended proximal end functionally connected to a firing cap;
• d) said firing cap connected to said proximal end of said central member and being moveable toward said distal end of said central member by compressive force, said firing cap having a piston-receiving cavity and a drive spring located in said cavity, said extended proximal end of said piston being functionally connected to said spring;
• e) finger support means located on the outside of one of said main housing and said central member;
• f) a child resistant inner locking mechanism connected to at least one of said central member and said firing cap that is =lockable and, when locked, prevents movement of said firing cap toward said distal end of said central member, and permits movement of said firing cap toward said distal end of said central member when said locking member is unlockled;
• and,
• g) a plurality of dosage choice stops extending from said central member so that each stop may intersect a bar attached to said spring when said spring is decompressed and a corresponding monodose indicator is selected, said stops being different lengths adapted to meter a different predefined monodose and to stop movement of said spring such that when spring movement is stopped by a longer length stop said piston penetrates into a shorter distance within said monodose package thereby providing for less medicine to be dispensed when said monodose medicine package is punctured and when said spring movement is stopped by a shorter length stop said piston penetrates into a longer distance within said monodose package thereby providing for more said medicine to be dispensed when said monodose medicine package is punctured;
• wherein said piston has a predetermined height, said central member piston-supporting area having a predetermined height, and said firing cap has a predetermined height, and wherein the height of said piston is greater than the sum of the height of said central member piston-supporting area and said firing cap;
• and,
• wherein a user may procure a monodose of medicine with said device when loaded with a single use monodose medicine package by (i) removing said outer locking mechanism so that its position is unlocked;
• (ii) moving said inner locking mechanism from its locked position to its unlocked position;
• and (iii) placing fingers in front of the finger support means and applying compressive force against said firing cap to move said firing cap towards said central member so as to compress said spring and to move said firing cap closer toward said central member to push said piston past said piston-supporting area of said shaft so as to puncture said single use monodose medicine package such that said spring then automatically and with significant celerity, fires said piston and causes said distal end of said piston to drive medicine therefrom to and through said spray nozzle in a manner that is user independent as to dosage amount and dosage speed of delivery to yield a consistent, predetermined profile spray.

A manually operated monodose nasal sprayer device, which comprises:

• a) an elongated main housing having a distal end adapted for partial insertion into one of a human nasal cavity and an animal nasal cavity and having a proximal end adapted to receive and hold a single use monodose medicine package-supporting central member, said elongated main housing having a spray discharge nozzle located at its distal end, said elongated main housing having medicine-receiving chamber connected to said nozzle and biased toward said single use monodose medicine package-supporting central member;
• b) said single use medicine package-supporting central member being connected to said proximal end of said elongated main housing, said central member having a distal end adapted to support a single use monodose medicine package so as to be positioned at said chamber of said elongated main housing, said single use monodose medicine package-supporting central member having a piston shaft having a piston-supporting area open at said distal end and adapted to extend a piston therein;
• c) said piston being partially located in said piston shaft, said piston having a medicine container breaking distal end, and having a downwardly extended proximal end functionally connected to a firing cap;
• d) said firing cap connected to said proximal end of said central member and being moveable toward said distal end of said central member by compressive force, said firing cap having a piston-receiving cavity and a drive spring located in said cavity, said extended proximal end of said piston being functionally connected to said spring;
• e) finger support means located on the outside of one of said main housing and said central member;
• f) a child resistant inner locking mechanism connected to at least one of said central member and said firing cap that is unlockable and, when locked, prevents movement of said firing cap toward said distal end of said central member, and permits movement of said firing cap toward said distal end of said central member when said locking member is unlocked;
• and,
• g) said single use monodose medicine package including said proximal end plug cap piston and said distal end plug cap piston wherein when said firing cap is fired and said spring pushes said proximal end plug cap piston into said distal end plug cap piston thereby driving said medicine through said spray nozzle;
• wherein said piston has a predetermined height, said central member piston-supporting area having a predetermined height, and said firing cap has a predetermined height, and wherein the height of said piston is greater than the sum of the height of said central member piston-supporting area and said firing cap;
• and,
• wherein a user may procure a monodose of medicine with said device when loaded with a single use monodose medicine package by (i) removing said outer locking mechanism so that its position is unlocked;
• (ii) moving said inner locking mechanism from its locked position to its unlocked position;
• and (iii) placing fingers in front of the finger support means and applying compressive force against said firing cap to move said firing cap towards said central member so as to compress said spring and to move said firing cap closer toward said central member to push said piston past said piston-supporting area of said shaft so as to puncture said single use monodose medicine package such that said spring then automatically and with significant celerity, fires said piston and causes said distal end of said piston to drive medicine therefrom to and through said spray nozzle in a manner that is user independent as to dosage amount and dosage speed of delivery to yield a consistent, predetermined profile spray.