Infusion assembly
First Claim
1. A cannula assembly comprising:
- a cannula subassembly including a substantially planar base having a first surface and a second surface, the first surface being opposite the second surface and adapted to adhere to a patient'"'"'s skin, a cannula projecting from the base first surface at a preset angle other than ninety degrees with respect to the patient'"'"'s skin so as to be beneath the patient'"'"'s skin when the subassembly is deployed, and a generally cylindrical docking structure having a center axis substantially perpendicular to the base second surface and arranged to receive a source of liquid medicament to be dispensed from the cannula; and
a cannula driver arranged to drive the cannula subassembly base first surface to a deployed position on the skin of the patient along a path defining the preset angle with respect to the patient'"'"'s skin.
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Accused Products
Abstract
An infusion assembly comprises a cannula subassembly and a source subassembly. The cannula subassembly includes a substantially planar base, a cannula projecting from the base so as to be beneath the patient'"'"'s skin when the subassembly is deployed, and a generally cylindrical docking structure having a center axis substantially perpendicular to the base. A liquid medicament is dispensed from the cannula. The source subassembly is arranged to dock with the docking structure and includes a supply of liquid medicament that couples to the cannula upon the source subassembly docking with the cannula subassembly. The source subassembly also includes a primer that automatically primes the insulin fluid path to the cannula tip when the subassemblies are joined.
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Citations
53 Claims
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1. A cannula assembly comprising:
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a cannula subassembly including a substantially planar base having a first surface and a second surface, the first surface being opposite the second surface and adapted to adhere to a patient'"'"'s skin, a cannula projecting from the base first surface at a preset angle other than ninety degrees with respect to the patient'"'"'s skin so as to be beneath the patient'"'"'s skin when the subassembly is deployed, and a generally cylindrical docking structure having a center axis substantially perpendicular to the base second surface and arranged to receive a source of liquid medicament to be dispensed from the cannula; and a cannula driver arranged to drive the cannula subassembly base first surface to a deployed position on the skin of the patient along a path defining the preset angle with respect to the patient'"'"'s skin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A cannula assembly comprising:
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a cannula subassembly including a substantially planar base having a first surface and a second surface, the first surface being opposite the second surface and adapted to adhere to a patient'"'"'s skin, a cannula projecting from the base first surface at a preset angle other than ninety degrees with respect to the patient'"'"'s skin so as to be beneath the patient'"'"'s skin when the subassembly is deployed, and a docking structure projecting from the base second surface and arranged to receive a source of liquid medicament to be dispensed from the cannula; and a cannula driver arranged to drive the cannula subassembly to a deployed position on the skin of the patient along a path defining the preset angle with respect to the patient'"'"'s skin, the cannula driver having a stabilizing base to engage the patient'"'"'s skin and an actuator arranged to be acted upon in a direction substantially transverse to the stabilizing base for actuating the cannula driver. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A cannula driver that deploys a cannula subassembly in a deployed position on the skin of a patient, comprising:
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a carrier that translates the cannula subassembly along a path defining a preset angle of other than ninety degrees with respect to the patient'"'"'s skin; a stabilizing base to engage the patient'"'"'s skin; and an actuator arranged to be acted upon in a direction substantially transverse to the stabilizing base for actuating the cannula driver. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification