Patch-like infusion device
First Claim
1. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
- a housing having a bottom surface adapted to contact the skin of a patient, and a top surface;
an injection needle adapted for penetration of tissue, said needle having a lumen;
a reservoir disposed within said housing forming a chamber for containing said medicament, said reservoir having a body opening comprising a longitudinal axis substantially parallel to said bottom surface of said housing, a reservoir end, a body end, a reservoir port at said reservoir end, and a needle port between said reservoir end and said body end, wherein said body opening is in fluid communication to said chamber via said reservoir port, and said body opening is in fluid communication to the lumen of the injection needle via said needle port disposed between said reservoir end and said body end of the body opening;
a pressurizing system for pressurizing said chamber when the device is activated; and
a valve disposed in said body opening having a reservoir seal for sealing said reservoir port of said reservoir end of said body opening and preventing fluid communication between said reservoir port and said needle port, thereby preventing medicament from flowing from the chamber, and a body seal for sealing said body end of said body opening, and movable along said longitudinal axis between a first and a second position within said body opening;
wherein when said valve is in said second position, fluid communication between said reservoir port and said needle port is established, thereby allowing medicament to flow from the chamber, which is pressurized by said pressurizing system, through the reservoir port, through the body opening, through the needle port, and through the lumen of the needle into the patient.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for a patch-like, self-contained substance infusion device which provides one or more substantially hidden patient needles which can be placed in fluid communication with a fluid reservoir, wherein the device can be attached to a skin surface via an adhesive contact surface and a push button activation assembly can then be used to remove an interlock, allowing a disk, or Belleville spring assembly to apply an essentially even and constant pressure to the contents of the fluid reservoir, allow the release of the patient needles into the skin surface, and establish a fluid communication path between the patient needles and the pressurized fluid reservoir contents. The push button activation assembly further allows the release of one or more improved safety mechanisms after use.
131 Citations
45 Claims
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1. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface adapted to contact the skin of a patient, and a top surface; an injection needle adapted for penetration of tissue, said needle having a lumen; a reservoir disposed within said housing forming a chamber for containing said medicament, said reservoir having a body opening comprising a longitudinal axis substantially parallel to said bottom surface of said housing, a reservoir end, a body end, a reservoir port at said reservoir end, and a needle port between said reservoir end and said body end, wherein said body opening is in fluid communication to said chamber via said reservoir port, and said body opening is in fluid communication to the lumen of the injection needle via said needle port disposed between said reservoir end and said body end of the body opening; a pressurizing system for pressurizing said chamber when the device is activated; and a valve disposed in said body opening having a reservoir seal for sealing said reservoir port of said reservoir end of said body opening and preventing fluid communication between said reservoir port and said needle port, thereby preventing medicament from flowing from the chamber, and a body seal for sealing said body end of said body opening, and movable along said longitudinal axis between a first and a second position within said body opening; wherein when said valve is in said second position, fluid communication between said reservoir port and said needle port is established, thereby allowing medicament to flow from the chamber, which is pressurized by said pressurizing system, through the reservoir port, through the body opening, through the needle port, and through the lumen of the needle into the patient. - View Dependent Claims (2, 3, 9)
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4. A device as claimed in 1, wherein the valve is comprised of a plunger portion and a stopper portion, said stopper portion on the exterior of said plunger portion, forming both the reservoir seal and the body seal, and said stopper portion being formed from a material which is more flexible than said plunger portion.
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5. A device as claimed in 1, wherein the body opening has a taper, said taper extending from the reservoir end to the body end and the body end has a greater relative diameter than said reservoir end.
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6. A device as claimed in 1, wherein the body opening has a first section and a second section between said reservoir end and said body end, said first section having a first diameter and said second section having a second diameter, wherein said first diameter is smaller than said second diameter.
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7. A device as claimed in 6, wherein the transition between said first and second sections is tapered.
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8. A device as claimed in 3, wherein the reservoir sealing rings have a first diameter and the body sealing rings have a second diameter, wherein said first diameter is less than said second diameter.
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10. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface, and a top surface; an injection needle adapted for penetration of tissue, said needle having a lumen; a reservoir disposed within said housing between said top and bottom surfaces, for containing said medicament, said reservoir having a body opening; a pressurizing means for pressurizing said reservoir when the device is activated; and a valve member, disposed within said housing between said top and bottom surfaces, movable along an axis substantially parallel to said housing bottom surface between a first and a second position within said body opening, the valve member comprising a movable stopper having a distal end to seal a first end of said body opening, and a proximal end to seal a second end of said body opening, and which maintains its integrity while in either said first or second position; wherein when said valve member is in said second position, fluid communication between the reservoir and the injection needle is established around an outer circumference of said distal end of said valve member, thereby allowing medicament to flow from the reservoir, which is pressurized by said pressurizing means, and through the injection needle into the patient.
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11. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface adapted to contact the skin of a patient, and a top surface; an injection needle adapted for penetration of tissue; a reservoir disposed within said housing adapted for containing said medicament, said reservoir having a body opening having a longitudinal axis substantially parallel to said bottom surface of said housing, said body opening being in selective fluid communication to the injection needle; a pressurizing system adapted for pressurizing said reservoir when the device is activated; and a valve, disposed in said body opening and adapted for sealing the reservoir when in a first position, and movable along said longitudinal axis to a second position within said body opening, having a distal end to seal a first end of said body opening, and a proximal end to seal a second end of said body opening; wherein when said valve is moved to said second position, fluid communication between said reservoir and said needle is established around an outer circumference of said distal end of said valve member, thereby allowing medicament to flow from the reservoir, which is pressurized by said pressurizing system, and through the needle into the patient.
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12. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface and a top surface; an injection needle adapted for penetration of tissue; a reservoir disposed within said housing between said top and bottom surfaces, adapted for containing said medicament, said reservoir having a first flow path in fluid communication with the reservoir; a pressurizing system for pressurizing said reservoir when the device is activated; a fluid path defined by the first flow path and a second flow path, wherein the second flow path is in fluid communication with the injection needle; and a valve disposed within said housing between said top and bottom surfaces, and in said fluid path, and having, a reservoir seal and a fluid path seal, said reservoir seal and fluid path seal connected by a valve body therebetween, the fluid path seal having an internal side which contacts the fluid path, and an external side which does not contact the fluid path, the reservoir seal movable between a first and a second position within said fluid path; wherein, when the reservoir seal is in the first position, fluid communication between the first flow path and the second flow path is not allowed, and when the reservoir seal is in the second position, fluid communication between the first flow path and the second flow path is established around an outer circumference of said reservoir seal of said valve. - View Dependent Claims (13, 14)
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15. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface adapted to contact the skin of a patient, and a top surface; an injection needle adapted for penetration of tissue, said needle having a lumen; a substantially planar and substantially circular reservoir disposed within said housing, comprised of a substantially rigid plate and a substantially flexible membrane bonded thereto, forming a chamber for containing said medicament, said reservoir having a body opening comprising a longitudinal axis substantially parallel to said bottom surface of said housing, a reservoir end, a body end, and a reservoir port at said reservoir end, wherein said body opening is in fluid communication with said chamber via the reservoir port, and said body opening is in fluid communication with the lumen of the injection needle via a needle port disposed between said reservoir end and said body end of the body opening; a needle conduit in an arcuate path around a periphery of said reservoir; a needle stabilizer projecting from said body opening, the needle stabilizer having a manifold end attached to a manifold end of the needle conduit, wherein the needle stabilizer is in an arcuate path around a periphery of said reservoir, opposing the needle conduit; a pressurizing system for pressurizing said chamber by compressing said membrane when the device is activated; and a valve disposed in said body opening having a reservoir seal for sealing said reservoir port of said reservoir end of said body opening and preventing fluid communication between said reservoir port and said needle port, thereby preventing medicament from flowing from the chamber, and a body seal for sealing said body end of said body opening, and movable along said longitudinal axis between a first and a second position within said body opening; wherein when said valve is moved from said first position to said second position, fluid communication between said reservoir port and said needle port is established, thereby allowing medicament to flow from the chamber which is pressurized by said pressurizing system, through the reservoir port, through the body opening, through the needle port, and through the lumen of the needle into the patient. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface, a top surface, and a longitudinal axis; an injection needle adapted for penetration of tissue; a reservoir, disposed within said housing, forming a chamber for containing said medicament, said reservoir in selective fluid communication to the injection needle; a disk spring, having a central aperture and selectively, operably engaged to the reservoir; and an activation member, disposed within said housing, with a first end and a second end and a longitudinal axis, the second end having a pin extending substantially perpendicular to said bottom surface of said housing, said pin having a length in the direction perpendicular to the bottom surface of the housing exceeding a length in the direction parallel to the bottom surface of the housing and adapted for insertion and removal from the central aperture of the disk spring, the activation member having a first position wherein the pin is disposed in the central aperture of the disk spring, and a second position wherein the pin is removed from the central aperture of the disk spring; wherein when said activation member is moved into said second position by application of a removal force, said disk spring is allowed to pressurize said reservoir, thereby discharging the medicament to the needle and into the patient. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface adapted to contact the skin of a patient, and a top surface; an injection needle adapted for penetration of tissue, said needle having a lumen; a reservoir disposed within said housing, comprised of a substantially rigid plate and a substantially flexible membrane bonded thereto, forming a chamber for containing said medicament, said reservoir having a body opening comprising a longitudinal axis substantially parallel to said bottom surface of said housing, a reservoir end, a body end, and a reservoir port at said reservoir end, wherein said body opening is in fluid communication with said chamber via the reservoir port, and said body opening is in fluid communication with the lumen of the injection needle via a needle port disposed between said reservoir end and said body end of the body opening; a needle conduit in a path around a periphery of said reservoir; a needle stabilizer projecting from said body opening, the needle stabilizer having a manifold end attached to a manifold end of the needle conduit, wherein the needle stabilizer is in a path around a periphery of said reservoir, opposing the needle conduit; a pressurizing system for pressurizing said chamber by compressing said membrane when the device is activated; and a valve disposed in said body opening having a reservoir seal for sealing said reservoir port of said reservoir end of said body opening and preventing fluid communication between said reservoir port and said needle port, thereby preventing medicament from flowing from the chamber, and a body seal for sealing said body end of said body opening, and movable along said longitudinal axis between a first and a second position within said body opening; wherein when said valve is moved from said first position to said second position, fluid communication between said reservoir port and said needle port is established, thereby allowing medicament to flow from the chamber which is pressurized by said pressurizing system, through the reservoir port, through the body opening, through the needle port, and through the lumen of the needle into the patient. - View Dependent Claims (41, 42, 43, 44)
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45. A device capable of being user-activated to deliver a medicament into the body of a patient by injection into or through the skin of a patient, comprising:
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a housing having a bottom surface, a top surface, and a longitudinal axis; an injection needle adapted for penetration of tissue; a reservoir, disposed within said housing, forming a chamber for containing said medicament, said reservoir in selective fluid communication to the injection needle; a disk spring, having a central aperture and selectively, operably engaged to the reservoir; an activation member, disposed within said housing, with a first end and a second end and a longitudinal axis, the second end having a pin extending substantially perpendicular to said bottom surface of said housing, said pin having a length in the direction perpendicular to the bottom surface of the housing exceeding a length in the direction parallel to the bottom surface of the housing and adapted for insertion and removal from the central aperture of the disk spring, the activation member having a first position wherein the pin is disposed in the central aperture of the disk spring, and a second position wherein the pin is removed from the central aperture of the disk spring; and a fulcrum disposed between said first end and said second end of the activation member, thereby forming the activation member into a lever, wherein a first force applied on the first end of the activation member is transmitted through the activation member to produce a removal force of the pin from the disk spring, wherein when said activation member is moved into said second position by application of the removal force, said disk spring is allowed to pressurize said reservoir, thereby discharging the medicament to the needle and into the patient.
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Specification