Fluid product injection device

Patent metadata

Field	Value
Publication number	US-12303664-B2
Application number	US-201917259774-A
Country	US
Kind code	B2
Filing date	Jul 11, 2019
Priority date	Jul 13, 2018
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A fluid injection device having a body contacting an injection site (SI); one or more fluid reservoirs ( 210 ); an injection needle ( 120 ) for injecting contents of one or more reservoir(s) ( 210 ); and a respective priming needle ( 125 ) associated with each reservoir ( 210 ) for penetrating into the reservoir ( 210 ) before dispensing the fluid. Each reservoir ( 210 ) includes a tube ( 145 ) connected at one end to its priming needle ( 125 ), and at the other end to a manifold ( 140 ), itself connected to the injection needle. The device has a peristaltic pump having a ring ( 150 ) mounted to rotate on a crankshaft ( 131 ), the ring ( 150 ) turning about an axis of rotation (Y) offset relative to the axis of rotation (X) of the crankshaft ( 131 ), progressively compressing the portion of tube ( 148 ) that extends around the crankshaft ( 131 ).

First claim

The invention claimed is:

1. A fluid injection device comprising: a body for coming into contact with an injection site; at least one fluid reservoir; an injection needle for penetrating into said injection site so as to inject therein the contents of one or more reservoir(s); and a respective priming needle associated with each reservoir for penetrating into said reservoir before dispensing the fluid, each reservoir including a tube that is connected at one end to the respective priming needle, and at the other end to a manifold, which is connected to said injection needle by a portion of tube;
said device further comprises a peristaltic pump comprising a ring that is mounted to rotate on a crankshaft, said ring turning about an axis of rotation that is offset relative to the axis of rotation of said crankshaft, progressively compressing said portion of tube that extends around said crankshaft; and at least two reservoirs and reservoir selector means for selecting one or more reservoirs, the contents of which are to be dispensed during the next actuation, said selector means comprising a rotary member that is provided with cam means that are adapted to co-operate with the tubes of the reservoirs so as to open or close the flow of fluid through each tube;
wherein said rotary member is a selector cog provided with a cam; and
wherein said cam is formed by a projection that is circularly arcuate, said cam being interrupted by at least one gap, such that when said cam is in contact with a tube the cam pinches the tube so as to cut off the flow of fluid, and when a tube is situated facing said gap fluid may flow.

2. The device according to claim 1 , wherein said ring turns about a central cylinder of said crankshaft.

3. The device according to claim 1 , wherein said cam is formed in radial manner in a central hole of said selector cog, said tubes passing through said central hole, said cam including a larger-diameter portion, such that when one of said tubes co-operates with said cam said one of said tubes is pinched, and when said one of said tubes co-operates with the larger-diameter portion said one of said tubes is not pinched.

4. A fluid injection device comprising: a body for coming into contact with an injection site; at least one fluid reservoir; an injection needle for penetrating into said injection site so as to inject therein the contents of one or more reservoir(s); and a respective priming needle associated with each reservoir for penetrating into said reservoir before dispensing the fluid, each reservoir including a tube that is connected at one end to the respective priming needle, and at the other end to a manifold, which is connected to said injection needle by a portion of tube;
said device further comprises a peristaltic pump comprising a ring that is mounted to rotate on a crankshaft, said ring turning about an axis of rotation that is offset relative to the axis of rotation of said crankshaft, progressively compressing said portion of tube that extends around said crankshaft; and at least two reservoirs and reservoir selector means for selecting one or more reservoirs, the contents of which are to be dispensed during the next actuation, said selector means comprising a rotary member that is provided with cam means that are adapted to co-operate with the tubes of the reservoirs so as to open or close the flow of fluid through each tube;
wherein said rotary member is a selector shaft provided with cam elements.

5. The device according to claim 4 , wherein said cam elements co-operate with a pinch member provided with a plurality of flexible blades, one for each reservoir tube, such that when a cam element deforms a flexible blade of the pinch member, said flexible blade pinches its respective tube so as to cut off the flow of fluid.

6. A fluid injection device comprising: a body for coming into contact with an injection site; at least one fluid reservoir; an injection needle for penetrating into said injection site so as to inject therein the contents of one or more reservoir(s); and a respective priming needle associated with each reservoir for penetrating into said reservoir before dispensing the fluid, each reservoir including a tube that is connected at one end to the respective priming needle, and at the other end to a manifold, which is connected to said injection needle by a portion of tube;
said device further comprises a peristaltic pump comprising a ring that is mounted to rotate on a crankshaft, said ring turning about an axis of rotation that is offset relative to the axis of rotation of said crankshaft, progressively compressing said portion of tube that extends around said crankshaft; and a single rotary actuator that, when the single rotary actuator turns in a first direction of rotation, activates the selection of the reservoir(s) to be dispensed, and that, when the single rotary actuator it turns in the opposite direction, actuates said peristaltic pump.

7. The device according to claim 6 , wherein said actuator includes a central pin that extends through an oblong opening of the body, thereby forming a floating cog.

8. The device according to claim 1 , wherein each reservoir has a fluid content in the range 1 mL to 10 mL.

9. The device according to claim 1 , wherein said device includes an electronic module.

10. The device according to claim 9 , wherein said electronic module comprises: a power supply; a microprocessor; storage means; signal transceiver means; and a motor.

11. The device according to claim 9 , wherein said electronic module is reusable and is assembled in removable manner on the device.

12. The device according to claim 1 , wherein each reservoir has a fluid content of about 3 mL.

13. The device according to claim 10 , wherein the power supply is rechargeable battery.

14. The device according to claim 4 , wherein said ring turns about a central cylinder of said crankshaft.

15. The device according to claim 6 , wherein said ring turns about a central cylinder of said crankshaft.

Assignees

• Aptar France Sas

Inventors

• Fabien David

Classifications

• A61M2205/8206

  battery-operated · CPC title

• A61M2205/50

  with microprocessors or computers · CPC title

• A61M5/172

  electrical or electronic {(A61M5/16804, A61M5/16831 take precedence)} · CPC title

• A61M5/158

  Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body} · CPC title

• A61M5/14228

  with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member · CPC title