Needle insertion systems and methods
First Claim
1. A needle-inserting device comprising:
- a housing having a flexible portion, an internal chamber, a longitudinal dimension, and an internal surface having an angled, ramped or wedge-shaped portion;
a plunger arranged for movement within the internal chamber, in the direction of the longitudinal dimension of the housing, from a first plunger position to a second plunger position;
a bias mechanism for imparting a bias force on the plunger when the plunger is in the first plunger position, wherein the bias force is directed toward the second plunger position; and
a needle connected to the plunger for movement with the plunger; and
a tab connected to or integral with and the plunger and carried by the plunger, the tab having a tab end configured to retain the plunger in the first plunger position, the tab end moveable relative to the housing;
an insert structure arranged for movement within the internal chamber of the housing with movement of the plunger from the first plunger position to the second plunger position, the insert structure including a body through which the needle extends, wherein at least one of the plunger or the body of the insert structure is arranged to engage the angled, ramped or wedge-shaped portion of the housing and outwardly flex the flexible portion of the housing upon the insert structure being moved as the plunger moves from the first plunger position to the second plunger position;
wherein upon movement of the tab end, the plunger is released from being retained in the first plunger position by the tab end and moves with the tab end, relative to the housing, in the direction of the longitudinal dimension of the housing from the first plunger position to the second plunger position under the bias force imparted by the bias mechanism to move the needle to an insert position and outwardly flex the flexible portion of the housing.
3 Assignments
0 Petitions
Accused Products
Abstract
A housing may have a needle, plunger, and bias mechanism supported within the housing by a tab configured to retain the plunger in position and to allow the plunger to move under bias force imparted by the bias mechanism to move the needle to an insert position when the tab is removed. A base and a structure may be configured for relative movement there between and may be adapted to be secured to a user with a cannula extending through a body of the structure into the user during use of a medical device. A housing may be adapted to be secured to a user to support a medical device operable with an insertion needle, the housing having a magnifying material for increasing visibility of an injection site.
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Citations
47 Claims
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1. A needle-inserting device comprising:
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a housing having a flexible portion, an internal chamber, a longitudinal dimension, and an internal surface having an angled, ramped or wedge-shaped portion; a plunger arranged for movement within the internal chamber, in the direction of the longitudinal dimension of the housing, from a first plunger position to a second plunger position; a bias mechanism for imparting a bias force on the plunger when the plunger is in the first plunger position, wherein the bias force is directed toward the second plunger position; and a needle connected to the plunger for movement with the plunger; and a tab connected to or integral with and the plunger and carried by the plunger, the tab having a tab end configured to retain the plunger in the first plunger position, the tab end moveable relative to the housing; an insert structure arranged for movement within the internal chamber of the housing with movement of the plunger from the first plunger position to the second plunger position, the insert structure including a body through which the needle extends, wherein at least one of the plunger or the body of the insert structure is arranged to engage the angled, ramped or wedge-shaped portion of the housing and outwardly flex the flexible portion of the housing upon the insert structure being moved as the plunger moves from the first plunger position to the second plunger position; wherein upon movement of the tab end, the plunger is released from being retained in the first plunger position by the tab end and moves with the tab end, relative to the housing, in the direction of the longitudinal dimension of the housing from the first plunger position to the second plunger position under the bias force imparted by the bias mechanism to move the needle to an insert position and outwardly flex the flexible portion of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method of making a needle-inserting device, the method comprising:
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providing a housing having a flexible portion, an internal chamber, a longitudinal dimension, and an internal surface having an angled, ramped or wedge-shaped portion; arranging a plunger for movement within the internal chamber, in the direction of the longitudinal dimension of the housing, from a first plunger position to a second plunger position, the plunger having a tab end; providing a bias mechanism for imparting a bias force on the plunger when the plunger is in the first plunger position, wherein the bias force is directed toward the second plunger position; and locating a needle connected to the plunger, for movement with the plunger; arranging an insert structure within the internal chamber of the housing, for movement with movement of the plunger from the first plunger position to the second plunger position, the insert structure including a body through which the needle extends, and arranging at least one of the plunger or the body of the insert structure to engage the angled, ramped or wedge-shaped portion of the housing and outwardly flex the flexible portion of the housing upon the insert structure being moved as the plunger moves from the first plunger position to the second plunger position; and configuring the tab end of the plunger to retain the plunger in the first plunger position, the tab end moveable relative to the housing such that upon movement of the tab end relative to the housing, the plunger is released from being retained in the first plunger position by the tab end and moves with the tab end, relative to the housing, in the direction of the longitudinal dimension of the housing from the first plunger position to the second plunger position under the bias force imparted by the bias mechanism to move the needle to an insert position and outwardly flex the flexible portion of the housing. - View Dependent Claims (42, 43, 44, 45)
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46. A needle-inserting device, comprising:
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a housing having a flexible portion, an internal chamber, a longitudinal dimension, and an internal surface having an angled, ramped or wedge-shaped portion; a plunger arranged for movement within the internal chamber, in the direction of the longitudinal dimension of the housing, from a first plunger position to a second plunger position; a bias mechanism for imparting a bias force on the plunger when the plunger is in the first plunger position, wherein the bias force is directed toward the second plunger position; and a needle connected to the plunger for movement with the plunger; and a tab integral with the plunger, the tab having a tab end configured to retain the plunger in the first plunger position, the tab end moveable relative to the housing and configured to be broken off the plunger; an insert structure arranged for movement within the internal chamber of the housing with movement of the plunger from the first plunger position to the second plunger position, the insert structure including a body through which the needle extends, wherein at least one of the plunger or the body of the insert structure is arranged to engage the angled, ramped or wedge-shaped portion of the housing and outwardly flex the flexible portion of the housing upon the insert structure being moved as the plunger moves from the first plunger position to the second plunger position; wherein upon movement of the tab end to break off the plunger, the plunger is free to move from the first plunger position to the second plunger position under the bias force imparted by the bias mechanism to move the needle to an insert position. - View Dependent Claims (47)
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Specification