IP Library › Granted Patent US 12,295,714
Granted Patent B2
US 12,295,714 · App. 16/734,011 · Granted May 13, 2025

Needle assembly including an aligned magnetic element

Inventors: Jon B. Newman (Centerville, UT); Sarah L Creasy (Park City, UT); Randi Cleverly (Bountiful, UT); Michael S. Guthrie (Crestwood, KY); Joseph J. Stupak, Jr. (Portland, OR); Glade H. Howell (Draper, UT); Eddie K. Burnside (Bountiful, UT); Bret Hamatake (Grantsville, UT); Chad A. Hadley (North Salt Lake, UT); Robert N. Golden (Kirkland, WA)
Assignee: C. R. Bard, Inc.
A61B5/062A61B5/06A61B5/150748A61B5/283A61B5/6852A61B8/0833A61B8/0841A61B34/20A61B5/150992A61B2034/2051A61B2090/378A61B2090/3954
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Quick Facts
Patent No.
US 12,295,714
App. No.
16/734,011
Granted
May 13, 2025
Kind
B2
Abstract

A method of attaching a magnetic element to a needle assembly. The needle assembly can include a cannula extending along a longitudinal axis. The method can include placing the magnetic element in a magnetic field such that a magnetic axis of the magnetic element substantially aligns with the magnetic field. The method can further include securing the magnetic element to a portion of the needle assembly while the magnetic element is substantially aligned with the magnetic field such that the magnetic axis of the magnetic element is secured in a desired predetermined orientation.

Claims (16)

1. A method of attaching a magnetic element to a needle assembly, the needle assembly including a cannula extending along a longitudinal axis, the method comprising:

placing the magnetic element in a magnetic field causing a magnetic axis of the magnetic element to align with the magnetic field; and

subsequent to placement of the magnetic element in the magnetic field and alignment of the magnetic axis of the magnetic element with the magnetic field, securing the magnetic element to a portion of the needle assembly while the magnetic element is aligned with the magnetic field, wherein securing the magnetic element to the portion of the needle assembly includes securing the magnetic element to be physically oriented at an angle with respect to the cannula such that the magnetic axis of the magnetic element is in coaxial alignment with the longitudinal axis of the cannula when the cannula is disposed through a center opening of the magnetic element.

2. The method of attaching according to claim 1 , wherein securing the magnetic element to the portion of the needle assembly includes securing the magnetic element via adhesive to a portion of a hub of the needle assembly.

3. The method of attaching according to claim 1 , wherein securing the magnetic element further includes securing the magnetic element in place within a safety can of a hub of the needle assembly with a light-curing adhesive.

4. The method of attaching according to claim 1 , wherein placing the magnetic element within the magnetic field includes placing the magnetic element within at least one electromagnetic winding, wherein the magnetic field is generated by the at least one electromagnetic winding.

5. The method of attaching according to claim 4 , wherein the magnetic element is disposed within the portion of the needle assembly, and wherein the portion of the needle assembly is disposed in a fixture that is placed within the at least one electromagnetic winding.

6. The method of attaching according to claim 5 , wherein the at least one electromagnetic winding is included in an alignment coil assembly that includes at least an upper bobbin that includes a first electromagnetic winding and a lower coil bobbin that includes a second electromagnetic winding, wherein the at least one electromagnetic winding includes at least one of the first electromagnetic winding or the second electromagnetic winding.

7. The method of attaching according to claim 1 , wherein the magnetic field in which the magnetic element is placed is external to at least one electromagnetic winding.

8. The method of attaching according to claim 1 , wherein placing the magnetic element includes positioning the magnetic element in a recess within one of a hub and a safety can of the needle assembly such that the magnetic element is free to move and orient within the recess.

9. The method of attaching according to claim 8 , wherein placing the magnetic element in the magnetic field further comprises vibrating the magnetic element while within the recess so as to enable free orientation of the magnetic element to the magnetic field.

10. A method for attaching a magnetic element to a needle holding component, comprising:

determining an orientation of a magnetic axis of the magnetic element;

marking the magnetic element with a first orientation mark that indicates the orientation of the magnetic axis;

inserting the magnetic element into the needle holding component such that (i) the first orientation mark aligns with a second orientation mark included with the needle holding component, and (ii) the magnetic axis extends from the needle holding component in a desired direction; and

securing the magnetic element to a portion of the needle holding component to be physically oriented at an angle with respect to a needle coupled to the needle holding component such that the magnetic axis of the magnetic element is in coaxial alignment with a longitudinal axis of the needle when the needle is disposed through a center opening of the magnetic element.

Continuity (14)
Division 14040205 · Sep 27, 2013
Continuation In Part 13118033 · May 27, 2011
Continuation In Part 13118138 · May 27, 2011
Continuation In Part 12323273 · Nov 25, 2008
Provisional Application 61774512 · Mar 7, 2013
Provisional Application 61709877 · Oct 4, 2012
Provisional Application 61707782 · Sep 28, 2012
Provisional Application 61349771 · May 28, 2010
Provisional Application 61095921 · Sep 10, 2008
Provisional Application 61095451 · Sep 9, 2008
Provisional Application 61091233 · Aug 22, 2008
Provisional Application 61045944 · Apr 17, 2008
Provisional Application 60990242 · Nov 26, 2007
Related Publication 20200138332A1 · May 7, 2020
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