Plate with integral fluid path channels

• US 10,449,292 B2
• Filed: 09/21/2015
• Issued: 10/22/2019
• Est. Priority Date: 09/22/2014
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Pizzochero, Alessandro Egidio, Gyory, J. Richard, Biehler, Joseph
• Primary Examiner(s): Carpenter, William R
• Application Number:
  US15/509,926
• Publication Number:
  US 20170246384A1
• Time in Patent Office: 1,492 Days
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2005/14264 with means for compensating influence from the environment
• CPC Class Codes: A61M 2005/16863 Occlusion detection
• CPC Class Codes: A61M 2205/332 Force measuring means
• CPC Class Codes: A61M 2205/3337 Controlling, regulating pressure or flow by means of a valve by-passing a pump
• CPC Class Codes: A61M 2205/3341 stabilising pressure or flow to avoid excessive variation
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066

Abstract

A device for delivering medicament into skin of a patient, the device having a housing, which includes a reservoir for housing the medicament, a first internal region that is sealed from fluid ingress and includes one or more components, and a second internal region that is not sealed from fluid ingress and includes one or more components. The housing also has a barrier that separates the first internal region and the second internal region, a delivery cannula that delivers the medicament into the skin of the patient, and a base including a bottom surface for orienting toward the skin of the patient. The bottom surface of the base has one or more fluid channels disposed therein and at least one of the fluid channels is in fluid communication with the delivery cannula.

Claims

1. A device for delivering medicament into skin of a patient, the device comprising:

a housing comprising;

a reservoir for housing the medicament;

a first internal region that is sealed from fluid ingress and includes one or more components;

a second internal region that is not sealed from fluid ingress and includes one or more components;

a barrier that separates the first internal region and the second internal region; and

a base including a bottom external surface for orienting toward the skin of the patient, the bottom external surface of the base having one or more fluid channels integrally formed and disposed therein, the bottom external surface of the base being external to the device; and

a fluid channel cover that encapsulates at least one of the one or more fluid channels, the fluid channel cover disposed over only a portion of the bottom externa surface;

wherein

the one or more components of the first internal region or of the second internal region comprising a delivery cannula that delivers the medicament into the skin of the patient; and

at least one of the one or more fluid channels is in fluid communication with the delivery cannula.

2. The device according to claim 1, wherein:

the one or more components of the first internal region include one or more of a pump, a force sensing resistor, and electronics; and

the one or more components of the second internal region include the delivery cannula.

3. The device according to claim 1, wherein a size of the one or more fluid channels do not limit fluid flow.

4. The device according to claim 1, wherein the one or more fluid channels are recessed from the bottom external surface of the base;

and

the medicament passes through the base from the first internal region to the second internal region.

5. The device according to claim 1, wherein at least one of the one or more fluid channels are in fluid communication with the delivery cannula while bypassing the barrier.

6. The device according to claim 1, further comprising:

a plate including one or more fluid channels; and

the one or more fluid channels of the plate being encapsulated by a fluid channel plate cover.

7. The device according to claim 1, wherein the cover comprises foil attached to the base.

8. The device according to claim 1, wherein the cover seals a portion of the bottom external surface of the base.

9. The device according to claim 1, wherein the cover encapsulates each of the one or more fluid channels.

10. The device according to claim 1, wherein a separate cover encapsulates each of the one or more fluid channels.

11. The device according to claim 1, wherein:

one of the one or more fluid channels transfers medicament to an input of a mechanism; and

one of the one or more fluid channels transfers medicament from an outlet of the mechanism to the delivery cannula.

12. The device according to claim 11, wherein the mechanism comprises a force sensing resistor.

13. A device for delivering medicament into skin of a patient, the device comprising:

a housing comprising;

a reservoir for housing the medicament;

a first internal region that is sealed from fluid ingress and includes one or more components;

a second internal region that is not sealed from fluid ingress and includes one or more components;

a barrier that separates the first internal region and the second internal region;

a base including a bottom surface for orienting toward the skin of the patient, the bottom surface of the base having one or more fluid channels integrally formed and disposed therein;

a delivery cannula that delivers the medicament into the skin of the patient;

a plate including

one or more fluid channels; and

the one or more fluid channels of the plate being encapsulated by a fluid channel cover;

wherein at least one of the one or more fluid channels of the base is in fluid communication with the delivery cannula; and

wherein the plate is disposed entirely in the first internal region.

14. A medicament delivery method comprising:

providing a device for delivering medicament into skin of a patient, the device comprising;

a housing comprising;

a reservoir for housing the medicament

a first internal region that is sealed from fluid ingress and includes one or more components;

a second internal region that is not sealed from fluid ingress and includes one or more components;

a barrier that separates the first internal region and he second internal region; and

a base including a bottom external surface for orienting toward the skin of the patient, the bottom external surface of the base having one or more fluid channels integrally formed and disposed therein, the bottom external surface of the base being external to the device;

a fluid channel cover that encapsulates at least one of the one or more fluid channels, the fluid channel cover disposed over only a portion of the bottom external surface;

wherein

the one or more components of the first internal region or of the second internal region comprising a delivery cannula that delivers the medicament into the skin of the patient; and

at least one of the fluid channels is in fluid communication with the delivery cannula;

disposing medicament into the reservoir of the housing; and

transporting the medicament in the one or more fluid channels traveling from the interior of the housing to an outside of the housing, and back into the interior of the housing.

15. The method according to claim 14, wherein the one or more fluid channels are recessed into the housing.