received by the International Bureau on 27 May 2016 (27.05.2016)

1. A fluid delivery system (101) for dispensing a measured, pre-selected amount of a drug (102) to a target, comprising:

(a) a reusable dosing module (100), the reusable dosing module being adapted to extract a set amount of the drug (102) from a first reservoir (104), the first reservoir optionally comprising a first vial, and being adapted to extract a set volume of diluent (180) from a second reservoir (182), the second reservoir optionally comprising a second vial, and transfer the selected, set volume(s) to a single use, manually activated injector reservoir (166), the injector reservoir being removably housed in a cavity (190) of a housing (124) of the reusable dosing module (100), and

(b) a reusable injector carrier assembly (108) configured to house the single use manually activated injector reservoir (166) and configured to provide a smooth surface (110) to stroke or calm an animal target prior to fluid delivery, and a cavity (186) adapted for removably housing the single use manually activated injector reservoir (166), whereby the system (101) is adapted to provide for user selected therapeutic dosing of the measured amount of the fluid (102) and user selected amount of diluent.

2. The fluid delivery system (101) of claim 1, wherein the target is an animal, and the dispensing of the fluid is intended to be performed subcutaneously into the target animal.

1

3. A single use manually activated injector reservoir (166) adapted to be used with the fluid delivery system (101) of claim 1, wherein the injector reservoir (166) is adapted to be charged with fluid by the dosing module (100).

4. A single use manually activated injector reservoir (166) adapted to be used with the fluid delivery system (101) of claim 1, wherein the injector reservoir (166) is adapted to be filled with a drug.

5. A method of delivering a fluid, the method including the steps of : a. inserting the glass vial (104) and/or the diluent vial (182) into the dosing module (100) of claim 1 ;

b. dialling a suitable dose of insulin, a derivate thereof, or another substance (102) and/or a suitable amount of diluent with wheel or slider (116) and/or wheel or slider (118);

c. inserting injector reservoir (166) into dosing module (100);

d. pushing button (128) to transfer substance (102) from dosing module (100) to injector reservoir (166);

e. removing injector reservoir (166) from dosing module (100) and transferring the injector reservoir (166) to injector assembly (106) comprising a needle guard (130); f. placing injector assembly (106) at injection site (140) such that a needle guard (130) touches the skin of the animal (102);

g. pushing injector assembly (106) against the skin of the animal (102) thereby moving retractable needle guard (130) up and into injector assembly (106) to

i. trigger needle (138) insertion through the skin of the animal and ii. dispense the insulin, a derivate thereof, or another substance (102) from dosing reservoir (166) into the skin of the animal; and,

h. removing the injector assembly (106) and discarding it.

2 A method (4100) of dosing an animal (102) with a variably adjustable amount of fluid (402) and/or a variably adjustable amount of diluent (452) via dosing module (400) of claim 1, the method includes the steps of: a. inserting the glass vial (404) and/or a diluent vial (454) into the dosing module (400) to:

i. pierce the septum of the glass vial (404) and/or a diluent vial (454), and ii. establish a fluidic path from the glass vial and/or a diluent vial to the internal dosing mechanism of glass vial and/or a diluent vial and the internal fluidic path/mechanism of dosing module;

b. dialling a suitable dose of fluid with one or more of dose set wheel(s) and/or slider(s) (416, 418), and dialling a suitable dose of diluent with a wheel or slider, optionally checking setting, to:

i. activate the fluid dosing mechanism, and

ii. transfer a set substance volume from the glass vial (404) and/or a diluent vial (454) to a separate optional fluid reservoir in carrier (400), and, iii. inserting dosing reservoir (466) into dosing module (400) to pierce the septum in the dosing reservoir (466) to establish a fluidic path from the fluid reservoir in the dosing module (400) for the fluid to transfer to the dosing reservoir (466);

c. pushing button (428) to transfer a set substance (402) volume and the diluent volume (452) from the reservoir(s) in the dosing module (400) to the dosing reservoir (466) in injector carrier (408);

d. removing filled dosing reservoir (466) from dosing module (400) and setting aside dosing module (400);

e. inserting the filled dosing reservoir (466) into injector carrier (406) to create injector carrier assembly (470);

f. moving injector carrier assembly (470) to desired injection site on an animal; g. stroking the injection site with the injector carrier assembly (470) to:

i. calm the animal, and

ii. assess the best injection site location based on the animal's behaviour;

3 h. holding the animal typically with one hand and with the other hand pressing activation button (426) on the injector carrier assembly (470) to:

i. insert needle,

ii. deliver substance, and

iii. retract needle into injector (406) for safe disposal of the injector carrier assembly (470);

i. removing the used reservoir (466) from the injector assembly (470) and discarding the used reservoir (466) in a sharps container and/or keep carrier assembly (470) for a subsequent injection.

7. A fluid delivery system (101) for dispensing a measured, pre-selected amount of a drug (102) to a target, comprising:

(a) a reusable dosing module (100), the reusable dosing module being adapted to extract a set amount of the drug (102) from a first reservoir (104), the first reservoir optionally comprising a first vial, and being adapted to extract a set volume of diluent (180) from a second reservoir (182), the second reservoir optionally comprising a second vial, and transfer the selected, set volume(s) to a single use, manually activated injector reservoir (166), the injector reservoir being removably housed in a cavity (190) of a housing (124) of the reusable dosing module (100), and

(b) a reusable injector carrier assembly (108) configured to house the single use manually activated injector reservoir (166) and optionally configured to provide a smooth surface (110) to stroke or calm an animal target prior to fluid delivery, and a cavity (186) adapted for removably housing the single use manually activated injector reservoir (166), whereby the system (101) is adapted to provide for user selected therapeutic dosing of the measured amount of the fluid (102) and user selected amount of diluent.

4