Method and apparatus for enhancing penetration of a member for the intradermal sampling or administration of a substance
First Claim
1. A device for stretching the surface of the skin of a patient, said device comprising:
- a medical device for contacting the skin of a patient; and
a skin stretching device coupled to said medical device for stretching skin of a patient away from said medical device when a downward pressure is applied on said medical device toward the skin of a patient, said stretching device having length sufficient to contact said skin of a patient prior to said medical device contacting said skin.
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Accused Products
Abstract
A device for monitoring, sampling or delivering a substance to the skin of a patient includes a medical device and a stretching device for stretching the skin to enhance the contact by the medical device. The medical device generally includes at least a skin penetrating member, such as a cannula. The cannula can be a single needle or an array of microneedles. The method for monitoring, sampling or delivering a substance positions the device on the skin and presses downwardly on the device causing the stretching device to stretch the skin in a target area of the skin penetrating member to enable uniform penetration of the skin. The uniform penetration provides for a more uniform monitoring, sampling or delivery of the substance to the patient.
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Citations
37 Claims
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1. A device for stretching the surface of the skin of a patient, said device comprising:
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a medical device for contacting the skin of a patient; and
a skin stretching device coupled to said medical device for stretching skin of a patient away from said medical device when a downward pressure is applied on said medical device toward the skin of a patient, said stretching device having length sufficient to contact said skin of a patient prior to said medical device contacting said 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 device for withdrawing, delivering or monitoring a substance through the skin of a patient, said device comprising:
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a housing supporting at least one skin penetrating member for delivering a substance intradermnally to a patient; and
a stretching device coupled to said housing for stretching the skin of a patient in at least one dimension, said stretching device having at least one member with a first end coupled to said device and a second end spaced axially from said housing and said at least one skin penetrating member, wherein said at least one member has a length greater than said at least one skin penetrating member and is positioned to contact and stretch the skin of a patient in said at least one dimension prior to the contact and penetration of said skin by said skin penetrating member. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of subjecting the skin of a patient to a medical device, said method comprising the steps of
providing a medical device having a skin stretching device, and positioning said medical device with said stretching device on the skin of a patient and applying a sufficient force on said device toward said skin where said stretching device stretches the skin away from said medical device prior to said medical device contacting said skin.
Specification