# US 8,784,372 B1 · First aid pen having separate compartments

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- Number: US 8,784,372 B1
- Document ID: US8784372B1
- Status: Granted
- Kind: B1
- Application number: 13/494,178
- Filed: 2012-06-12
- Granted: 2014-07-22
- Earliest claimed: 2012-06-12
- Applicants: Johnathan D. Hoggatt
- Inventors: Johnathan D. Hoggatt
- Web page: https://patentgrep.com/patent/US8784372B1

## CPC

- A61M 5/2066: {comprising means for injection of two or more media, e.g. by mixing}
- A61M 5/326: {Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user}
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

The first aid pen having separate compartments is comprised of a pressure cap that can retract to expose a hypodermic needle suspended under and in fluid communication with a mixing chamber. The first aid pen includes a first compartment and a second compartment. The second compartment includes a membrane upon a top surface, which is punctured upon pushing a slideable member of the first compartment downwardly. Once the membrane is broken, the contents of the first compartment descends into and mix with the contents of the second compartment, and prior to intravenous or intramuscular injection via the hypodermic needle. The first compartment includes the slideable member, which is pushed downwardly in order to puncture the membrane and mix the two components stored in the respective compartment. The second compartment forms the mixing chamber when the contents of the first compartment descend therein.

## Claims

### Claim 1

A first aid pen having separate compartments comprising:
a hypodermic needle that extends to expose a bottommost end of the hypodermic needle from a pressure cap;
wherein a first compartment containing a first component is positioned above a second compartment containing a second component;
wherein a member seals off the first compartment from the second compartment; wherein the first compartment includes a slideable member that when pushed downwardly engages and punctures a membrane thereby enabling the first component to descend downwardly and mix with the second component immediately prior to intravenous or intramuscular injection via the hypodermic needle;
wherein the hypodermic needle is in fluid communication with the second compartment;
wherein a release button controls fluid flow from the second compartment to the hypodermic needle;
wherein the release button includes a button spring, which biases the release button outwardly, and upon depression of the release button a button member slides across a channel to align a button member hole with said channel thereby enabling uninterrupted fluid flow from the second compartment to the hypodermic needle;
wherein a retraction spring located around the hypodermic needle when released retracts the hypodermic needle upwardly a retraction needle distance only after injection.

### Claim 2 (depends on 1)

The first aid pen having separate compartments as described in claim 1 wherein the pressure cap includes a needle hole that enables the hypodermic needle to extend and retract with respect to the pressure cap.

### Claim 3 (depends on 1)

The first aid pen having separate compartments as described in claim 1 wherein the pressure cap includes a cap spring, which biases the pressure cap downwardly in order to entirely encompass the hypodermic needle.

### Claim 4 (depends on 3)

The first aid pen having separate compartments as described in claim 3 wherein the cap spring is located inside of the pressure cap, and encircles the hypodermic needle so as not to obstruct the function of the hypodermic needle.

### Claim 5

A first aid pen having separate compartments comprising:
a hypodermic needle that extends to expose a bottommost end of the hypodermic needle from a pressure cap;
wherein a first compartment containing a first component is positioned above a second compartment containing a second component;
wherein a member seals off the first compartment from the second compartment; wherein the first compartment includes a slideable member that when pushed downwardly engages and punctures a membrane thereby enabling the first component to descend downwardly and mix with the second component immediately prior to intravenous or intramuscular injection via the hypodermic needle;
wherein the pressure cap includes a needle hole that enables the hypodermic needle to extend and retract with respect to the pressure cap;
wherein the hypodermic needle is in fluid communication with the second compartment;
wherein a release button controls fluid flow from the second compartment to the hypodermic needle;
wherein the release button includes a button spring, which biases the release button outwardly, and upon depression of the release button a button member slides across a channel to align a button member hole with said channel thereby enabling uninterrupted fluid flow from the second compartment to the hypodermic needle;
wherein a retraction spring located around the hypodermic needle when released retracts the hypodermic needle upwardly a retraction needle distance only after injection.

### Claim 6 (depends on 5)

The first aid pen having separate compartments as described in claim 5 wherein the pressure cap includes a cap spring, which biases the pressure cap downwardly in order to entirely encompass the hypodermic needle.

### Claim 7 (depends on 6)

The first aid pen having separate compartments as described in claim 6 wherein the cap spring is located inside of the pressure cap, and encircles the hypodermic needle so as not to obstruct the function of the hypodermic needle.