Practitioner-mounted micro vein enhancer

• US 8,478,386 B2
• Filed: 06/29/2006
• Issued: 07/02/2013
• Est. Priority Date: 01/10/2006
• Status: Active Grant

• Current Assignee: AccuVein LLC
• Original Assignee: AccuVein LLC
• Inventors: Goldman, Ron, Hunt, David, Mock, Mark, Marshal, Graham, Conlon, Stephen P., Roth, Bob
• Primary Examiner(s): KISH, JAMES M
• Application Number:
  US11/478,322
• Publication Number:
  US 20070161907A1
• Time in Patent Office: 2,560 Days
• Field of Search: 600/407, 600/473, 600/476, 218/14, 218/3, 241/0, 241/7, 242/5, 245/2
• US Class Current: 600/476
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• CPC Class Codes: A61B 2090/366 using projection of images directly onto the body
• CPC Class Codes: A61B 2560/0214 of power generation or supply
• CPC Class Codes: A61B 2560/0425 Ergonomically shaped housings A61B2560/0418 takes precedence
• CPC Class Codes: A61B 2560/0431 Portable apparatus, e.g. comprising a handle or case
• CPC Class Codes: A61B 2562/028 Microscale sensors, e.g. electromechanical sensors [MEMS]
• CPC Class Codes: A61B 5/0037 Performing a preliminary scan, e.g. a prescan for identifying a region of interest
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/0062 Arrangements for scanning
• CPC Class Codes: A61B 5/0068 Confocal scanning
• CPC Class Codes: A61B 5/0071 by measuring fluorescence emission
• CPC Class Codes: A61B 5/0075 by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy A61B5/0071 takes precedence
• CPC Class Codes: A61B 5/0079 using mirrors, i.e. for self-examination
• CPC Class Codes: A61B 5/0082 adapted for particular medical purposes
• CPC Class Codes: A61B 5/489 Blood vessels
• CPC Class Codes: A61B 5/6824 Arm or wrist
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/6887 mounted on external non-worn devices, e.g. non-medical devices
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: A61B 90/13 : guided by light, e.g. laser pointers
• CPC Class Codes: A61M 5/427 : Locating point where body is to be pierced, e.g. vein location means using ultrasonic waves, injection site templates
• CPC Class Codes: A61M 5/46 : having means for controlling depth of insertion
• CPC Class Codes: G02B 27/1006 : for splitting or combining different wavelengths G02B27/1086, G02B27/141 take precedence
• CPC Class Codes: G06T 7/50 : Depth or shape recovery

Abstract

The present invention is a Miniature Vein Enhancer that includes a Miniature Projection Head. The Miniature Projection Head may be operated in one of three modes, AFM, DBM, and RTM. The Miniature Projection Head of the present invention projects an image of the veins of a patient, which aids the practitioner in pinpointing a vein for an intravenous drip, blood test, and the like. The Miniature projection head may have a cavity for a power source or it may have a power source located in a body portion of the Miniature Vein Enhancer. The Miniature Vein Enhancer may be attached to one of several improved needle protectors, or the Miniature Vein Enhancer may be attached to a body similar to a flashlight for hand held use. The Miniature Vein Enhancer of the present invention may also be attached to a magnifying glass, a flat panel display, and the like.

Claims

1. A miniature vein enhancer, for use in enhancing a target area on a patient, said vein enhancer comprising:

a) a miniature projection head, said projection head comprising a means to capture an image of subcutaneous veins of the target area and to project said image onto the target area, said miniature projection head comprising a housing configured to receive said image capture/projection means with an optical path for said image capture/projection means being through an opening, said housing comprising a ball; and

b) a base, a first side of said base comprising a socket configured to rotatably receive said ball of said housing, said housing thereby configured to be rotatable with respect to said base;

c) a means to secure said miniature vein enhancer to a hand of a practitioner to thereby permit independent finger movements of the hand of the practitioner for single-handed performance of a venipuncture procedure utilizing said projected image, said miniature projection head thereby configured to be rotatable to adjustably direct said optical path onto the target area.

2. A miniature vein enhancer according to claim 1 wherein said base comprises one or more openings for receiving said means for securing said miniature vein enhancer to a practitioner.

3. A miniature vein enhancer according to claim 2 wherein said base comprises a dome shape, and wherein said one or more openings in said base comprises a first slit and a second slit on opposite sites of said dome shape, said first and second slits configured to receive said means for securing said miniature vein enhancer to a practitioner.

4. A miniature vein enhancer according to claim 3 wherein a second side of said dome-shaped base is configured to conform to the back of the hand of the practitioner, and wherein said means for securing said miniature vein enhancer to a practitioner is configured to secure said base of said miniature vein enhancer against the back of the hand of the practitioner.

5. A miniature vein enhancer according to claim 4 wherein a mounting plate comprises a generally circular base and wherein said mounting plate comprises a pair of slits for receiving said means for securing said miniature vein enhancer.

6. A miniature vein enhancer according to claim 1 further comprising a vial holder with a needle secured thereto, for use in a venipuncture procedure;

and

wherein a tip of said needle is configured to be imaged by said image capture/projection means, said rotatable miniature projection head bein configured to direct said optical path of said image capture/projection means toward said tip of said needle within the target area.

7. A miniature vein enhancer for use in enhancing a target area on a patient, said vein enhancer comprising:

a miniature projection head, said miniature projection head comprising a first laser, a photodetector, and a second laser, said first laser configured to transmit a beam of laser light at a selective wavelength, said photodetector configured to acquire an image of subcutaneous veins of the target area formed by differential absorption of said selective wavelength of light by the subcutaneous veins and the surrounding tissue, said photodetector further configured to output an analog signal representing said image, and said second laser configured to transmit a beam of laser light to selectively project said acquired image onto the target area using said analog signal, said miniature projection head comprising a combiner configured to combine said first and second beams of laser light for said transmission from said first laser and said projection from said second laser, to be along a single optical path, said miniature projection head comprising a ball;

a base, a first side of said base comprising a socket configured to rotatable receive a portion of said ball, said miniature projection head thereby configured to be rotatable with respect to said base; and

a mounting strap, said mounting strap configured to be received by a portion of said base, and configured to secure said miniature vein enhancer to a hand of a practitioner, said miniature projection head thereby configured to be rotatable to adjustably direct said single optical path of said combined laser light onto the target area.

8. A miniature vein enhancer according to claim 7 wherein said base comprises one or more openings for receiving said mounting strap;

and wherein either a first end or a second end of said mounting strap is received through said one or more openings, with said first and second ends of said mounting strap extending beyond said one or more openings in said base.

9. A miniature vein enhancer according to claim 8, wherein said first and second ends of said mounting strap are configured to be secured to each other using one or more of:

a portion of said mounting strap proximate to said first end comprising a hook material, and a portion of said mounting strap proximate to said second end comprising a loop material, said loop material being releasably securable to said hook material; and

a snap button.

10. A miniature vein enhancer according to claim 9 wherein said one or more openings in said base comprises a pair of slits configured to receive said mounting strap.

11. The miniature vein enhancer according to claim 10 wherein said miniature projection head comprises a spherically shaped housing having an opening therein, said single optical path of said combined first and second beams of laser light being transmitted through said opening in said housing onto the target area.

12. The miniature vein enhancer according to claim 11 wherein a second side of said base is configured to conform to the back of the practitioner'"'"'s hand, and wherein said mounting strap secures said base of said miniature vein enhancer against the back of the practitioner'"'"'s hand.

13. A miniature vein enhancer according to claim 12 wherein said beam of light from said first laser is transmitted at a first wavelength and said beam of light from said second laser is transmitted at a second wavelength, said second wavelength being different from said first wavelength.

14. A miniature vein enhancer according to claim 13 further comprising:

a scanner configured to cause said first wavelength of laser light from said first laser to be transmitted in a pattern onto the target area.

15. A miniature vein enhancer according to claim 14 wherein said scanner comprises a scanner selected from the group of scanners consisting of:

a two-dimensional mirror capable of oscillations in two axes;

one high speed scanning mirror capable of moving along a first axis and being angled to reflect said transmitted laser light to a second lower speed mirror capable of moving along a second axis; and

a MEMS scanner.

16. A miniature vein enhancer according to claim 15 further comprising a vial holder with a needle secured thereto, for use in piercing a vein;

and wherein a tip of said needle is configured to be responsive to said first wavelength of light to be visible within said acquired image and within said projection of said acquired image, said rotatable miniature projection head being configured to direct said single optical path of said combined laser light toward said tip of said needle within the target area.

17. The miniature vein enhancer according to claim 16 wherein said transmitted pattern of light comprises one or more patterns being from the group of two-dimensional patterns consisting of:

a raster pattern; and

a lissajous pattern.

18. A miniature vein enhancer according to claim 17 wherein said first laser is configured to transit light at near infrared or infrared wavelengths and said second laser is configured to transit light at visible wavelengths.

19. The miniature vein enhancer according to claim 18 wherein said second laser transmits light at a wavelength of 630 nm and said first laser transmits light at a wavelength of 740 nm.

20. A miniature vein enhancer, for use in imaging subcutaneous veins of a target area of a patient, said vein enhancer comprising:

a housing, said housing comprising an opening, and aid housing comprising a ball fixedly secured thereto;

means for imaging subcutaneous veins of the target area and projecting said image onto the target area, said means for imaging and projecting being secured in said housing with an optical path of said means for imaging and projecting being through said opening in said housing; and

a base, a first side of said base comprising a socket configured to rotatably receive a portion of said ball of said housing, said housing thereby configured to be rotatable with respect to said base; and

a mounting strap, said mounting strap configured to be received by a portion of said base and to secure said miniature vein enhancer to a hand of a practitioner, said miniature projection head thereby configured to be rotatable to adjustably direct said optical path onto the target area.

21. A miniature vein enhancer according to claim 20 wherein said base comprises one or more openings for receiving said mounting strap;

and wherein a first end of said mounting strap is received through said one or more openings, with said first end and a second end of said mounting strap extending beyond said one or more openings in said base.

22. A miniature vein enhancer according to claim 21, wherein said first and second ends of said mounting strap are configured to be secured to each other using one or more of:

a portion of said mounting strap proximate to said first end comprising a hook material, and a portion of said mounting strap proximate to said second end comprising a loop material, said loop material being releasably securable to said hook material; and

a snap button.

23. A miniature vein enhancer according to claim 22 wherein said base comprises a dome shape, and wherein said one or more openings in said base comprises a first slit and a second slit configured to receive said mounting strap.

24. The miniature vein enhancer according to claim 23 wherein a second side of said dome-shaped base is configured to conform to the back of the practitioner'"'"'s hand, and wherein said mounting strap secures said base of said miniature vein enhancer against the back of the practitioner'"'"'s hand.

25. A miniature vein enhancer according to claim 24 further comprising a vial holder with a needle secured thereto, for use in a venipuncture procedure;

and wherein a tip of said needle is configured to be imaged by said means for imaging subcutaneous veins, said rotatable miniature projection head being configured to direct said optical path of said image capture/projection means toward said tip of said needle within the target area.