IP Library › Granted Patent US 12,274,550
Granted Patent B2
US 12,274,550 · App. 17/447,567 · Granted Apr 15, 2025

Blood collection safety devices and methods of use and manufacture

Inventors: David P. Allen (Newport Beach, CA); Edward P. Browka (Chapel Hill, NC); Jessie Delgado (Durham, NC); Matthew R. Penny (Cary, NC); David L. Foshee (Apex, NC); Theodore J. Mosler (Raleigh, NC)
Assignee: Sta-Med, LLC
A61B5/150656A61B5/1444A61B5/15003A61B5/150236A61B5/150274A61B5/150389A61B5/150496A61B5/150572A61B5/150641A61B5/150725A61B5/150732A61B5/150809A61B5/150816A61B5/150916A61B5/153A61B5/154A61B5/155Y10T29/49826Y10T29/49863
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Quick Facts
Patent No.
US 12,274,550
App. No.
17/447,567
Granted
Apr 15, 2025
Kind
B2
Abstract

An automatically locking safety device, e.g., for use in a blood collection procedure, can include a housing, first and second needle covers that are at least partly received in the housing, and a needle that is at least partly received in at least one of the first and second needle covers. The needle can include a proximal tip configured for placement into a patient and a distal tip configured for placement into a blood collection vial. In some embodiments, the first and second needle covers are biased by a biasing member. In some cases, one or both of the first and second needle covers can be locked to prevent axial movement thereof after the blood collection procedure. In certain embodiments, a distal end of the device is configured to connect with a medical connector, such as a needleless IV access device.

Claims (43)

1. A method of using a blood collection safety device having a distal needle cover, a proximal needle cover, and a needle, the method comprising:

positioning a distal end of the needle against a patient's skin;

applying an amount of distally-directed force on the blood collection safety device such that the distal end of the needle pierces the patient's skin;

using a blood collection vial to move the proximal needle cover distally;

engaging the blood collection vial with a proximal end of the needle, thereby placing the needle in fluid communication with the vial;

allowing blood to flow from the patient into the vial via the needle;

reducing the amount of distally-directed force such that the distal needle cover is moved distally by a biasing member of the blood collection safety device;

removing the distal end of the needle from the patient's skin;

disengaging the blood collection vial and the proximal end of the needle;

forming at least some of a protective enclosure around the needle by:

passively securing the distal needle cover such that at least a portion of the distal needle cover is distal of the distal end of the needle, thereby covering the distal end of the needle and preventing the distal end of the needle from moving distal of the portion of the distal needle cover; and

passively securing the proximal needle cover such that at least a portion of the proximal needle cover is proximal of the proximal end of the needle, thereby covering the proximal end of the needle and preventing the proximal end of the needle from moving proximal of the portion of the proximal needle cover; and

disposing of the blood collection safety device in a non-sharps waste receptacle.

2. The method of claim 1 , wherein forming at least some of a protective enclosure around the needle further comprises: surrounding, with a continuous physical wall, an entire longitudinal length of the needle.

3. The method of claim 1 , wherein forming at least some of a protective enclosure around the needle further comprises: providing a physical interference along an entire longitudinal length of the needle, such that a user is blocked from contacting a sidewall of the needle along the entire longitudinal length of the needle.

4. The method of claim 1 , further comprising obscuring, with the enclosure, an entire longitudinal length of the needle.

5. The method of claim 1 , further comprising piercing a resilient boot of the blood collection safety device with the proximal end of the needle.

6. The method of claim 1 , wherein, during at least some of the distal movement of the distal needle cover, the distal needle cover translates and rotates relative to the needle.

7. The method of claim 1 , further comprising sliding the distal needle cover along a rail and receiving the rail in a channel of the distal needle cover.

8. The method of claim 1 , wherein passively securing the distal needle cover comprises engaging a tooth of a housing of the blood collection safety device with the distal needle cover.

9. The method of claim 1 , further comprising allowing blood to flow from the patient into a flash chamber of the blood collection safety device.

10. The method of claim 1 , further comprising visually observing, from a vantage point external of the blood collection safety device, an indication that the distal needle cover is in a distal position.

11. A method of using a blood collection safety device having a distal needle cover, a proximal needle cover, and a needle, the method comprising:

positioning a distal end of the needle against a patient's skin;

applying an amount of distally-directed force on the blood collection safety device such that the distal end of the needle pierces the patient's skin;

engaging a blood collection vial with a proximal end of the needle, thereby placing the needle in fluid communication with the vial;

allowing blood to flow from the patient into the vial via the needle;

reducing the amount of distally-directed force such that the distal needle cover is moved distally by a biasing member of the blood collection safety, wherein, during at least some of the distal movement of the distal needle cover, the distal needle cover translates and rotates relative to the needle;

removing the distal end of the needle from the patient's skin;

disengaging the blood collection vial and the proximal end of the needle;

forming at least some of a protective enclosure around the needle by:

passively securing the distal needle cover such that at least a portion of the distal needle cover is distal of the distal end of the needle, thereby covering the distal end of the needle and preventing the distal end of the needle from moving distal of the portion of the distal needle cover; and

passively securing the proximal needle cover such that at least a portion of the proximal needle cover is proximal of the proximal end of the needle, thereby covering the proximal end of the needle and preventing the proximal end of the needle from moving proximal of the portion of the proximal needle cover; and

disposing of the blood collection safety device in a non-sharps waste receptacle.

12. The method of claim 11 , wherein forming at least some of a protective enclosure around the needle further comprises: surrounding, with a continuous physical wall, an entire longitudinal length of the needle.

13. The method of claim 11 , wherein forming at least some of a protective enclosure around the needle further comprises: providing a physical interference along an entire longitudinal length of the needle, such that a user is blocked from contacting a sidewall of the needle along the entire longitudinal length of the needle.

14. The method of claim 11 , further comprising obscuring, with the enclosure, an entire longitudinal length of the needle.

15. The method of claim 11 , further comprising using the blood collection vial to move the proximal needle cover distally.

16. The method of claim 11 , further comprising piercing a resilient boot of the blood collection safety device with the proximal end of the needle.

17. The method of claim 11 , further comprising sliding the distal needle cover along a rail and receiving the rail in a channel of the distal needle cover.

18. The method of claim 11 , wherein passively securing the distal needle cover comprises engaging a tooth of a housing of the blood collection safety device with the distal needle cover.

19. The method of claim 11 , further comprising allowing blood to flow from the patient into a flash chamber of the blood collection safety device.

20. The method of claim 11 , further comprising visually observing, from a vantage point external of the blood collection safety device, an indication that the distal needle cover is in a distal position.

Continuity (8)
Division 15847574 · Dec 19, 2017
Division 15268132 · Sep 16, 2016
Division 14185281 · Feb 20, 2014
Division 13483878 · May 30, 2012
Provisional Application 61615783 · Mar 26, 2012
Provisional Application 61596684 · Feb 8, 2012
Provisional Application 61491830 · May 31, 2011
Related Publication 20220104742A1 · Apr 7, 2022
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