DRIVE MECHANISM FOR DRUG DELIVERY PUMPS WITH INTEGRATED STATUS INDICATION
First Claim
1. A drive mechanism having integrated status indication, the drive mechanism comprising:
- a drive housing,a status switch interconnect disposed to provide feedback to a user, the status switch interconnect including a mechanical trigger,a piston having a proximal end, a distal end and an interface surface near the distal end of the piston, the piston being disposed to move from a retracted position to an extended position,a drive biasing member disposed to exert a biasing force to move the piston between the retracted position and the extended position,a cover sleeve having a distal end and a radially extending ring near the distal end of the cover sleeve, the radially extending ring being disposed between the drive biasing member and the interface surface of the piston, anda drug container having a cap, a pierceable seal, a barrel, and a plunger seal.
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Accused Products
Abstract
A drive mechanism having integrated status indication includes a drive housing, a status switch interconnect, a drive biasing member, a piston, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the drive biasing member is configured to bear upon an interface surface of the piston. Drive mechanism may include an incremental status stem having a stem interconnect, wherein the stem resides within the drive housing and the piston, and wherein the stem has an interconnect which engages one or more contacts on the piston to provide incremental feedback. A drug delivery pump with integrated status indication includes a housing and an assembly platform, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection, a power and control system, and the drive mechanism having a drug container may be mounted.
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Citations
20 Claims
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1. A drive mechanism having integrated status indication, the drive mechanism comprising:
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a drive housing, a status switch interconnect disposed to provide feedback to a user, the status switch interconnect including a mechanical trigger, a piston having a proximal end, a distal end and an interface surface near the distal end of the piston, the piston being disposed to move from a retracted position to an extended position, a drive biasing member disposed to exert a biasing force to move the piston between the retracted position and the extended position, a cover sleeve having a distal end and a radially extending ring near the distal end of the cover sleeve, the radially extending ring being disposed between the drive biasing member and the interface surface of the piston, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A drive mechanism having incremental status indication, the drive mechanism comprising:
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a drive housing, a piston having an outer surface and at least two contacts on the outer surface of the piston, a drive biasing member disposed to exert a biasing force to move the piston between the retracted position and the extended position, a contact sleeve having a distal end and at least one sleeve hook disposed near the distal end of the contact sleeve, a status switch interconnect disposed to provide feedback to a user, the status switch interconnect being located on the sleeve hook, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal. - View Dependent Claims (10, 11, 12, 13)
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14. A drug delivery pump having integrated status indication, the drug delivery pump comprising:
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a housing, an assembly platform, an activation mechanism, an insertion mechanism, a fluid pathway connection, a power and control system, and a drive mechanism, the activation mechanism, the insertion mechanism, the fluid pathway connection, the power and control system, and the drive mechanism being mounted on the assembly platform, the drive mechanism including a drive housing, a status switch interconnect mounted to the drive housing and disposed to provide feedback to a user, the status switch interconnect including a mechanical trigger, a piston having a proximal end, a distal end and an interface surface near the distal end of the piston, the piston being disposed to move from a retracted position to an extended position, a drive biasing member disposed to exert a biasing force to move the piston between the retracted position and the extended position, a cover sleeve having a distal end and a radially extending ring near the distal end of the cover sleeve, the radially extending ring being disposed between the drive biasing member and the interface surface of the piston, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification