Fine needle aspiration cytology device syringe holder

• US 5,469,860 A
• Filed: 10/27/1994
• Issued: 11/28/1995
• Est. Priority Date: 04/11/1994
• Status: Expired due to Term

• Current Assignee: Devicor Medical Products Incorporated (Danaher Corporation)
• Original Assignee: Stephen A De Santis
• Inventors: De Santis, Stephen A.
• Primary Examiner(s): RIMELL, SAMUEL G
• Application Number:
  US08/331,283
• Time in Patent Office: 397 Days
• Field of Search: 128/749, 128/753, 128/765, 128/763, 604/223, 604/224, 604/227, 604/228, 604/198
• US Class Current: 600/578
• CPC Class Codes: A61B 10/0283 with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe A61B10/025, A61B10/0266 take precedence

Abstract

A fine needle aspiration cytology device for extracting tissue samples for cytologic evaluation is disclosed. The device comprises a handle and generally U-shaped slide member with trigger attachable thereto. The handle is designed and configured to releasably engage a conventional syringe. The slide is designed to slidably engage with the handle and is provided with a slot at the base thereof for retaining the plunger of the When interconnected, the slide may move in forward or rearward positions relative the handle and further, when interconnected with a syringe, may selectively control the axial position of the plunger relative the syringe. In a preferred embodiment, the device is further provided with a manually adjustable locking detent mechanism that may releasably maintain the handle and slide in rigid connection.

Claims

1. A manually operated aspirating device used in combination with a conventional needle and syringe with plunger comprising:

a) a body into which the syringe is received via the side thereof, said body having at least one collar formed thereon for attaching said syringe to said body;

b) a slide slidably attachable to said body, said slide having a slot formed thereon for releasably engaging said plunger, said slide being so attachable to said body such that when said syringe is attached to said body, said slide may selectively position said plunger relative said syringe;

c) a hand grip formed to said body distal of the proximal end of the syringe;

d) said slide comprises a generally U-shaped member having a closed end and a pair of generally parallel arms, said slot for releasably engaging said plunger being formed at the closed end of said generally U-shape;

e) said body includes first and second channels formed therein for slidably engaging a respective one of said pair of arms.

f) a trigger member depending downwardly from a lowermost one of said pair of arms of said generally U-shaped member, said trigger member being so attachable to said generally U-shaped member that when said generally U-shaped member is slidably attached to said body and handgrip, a generally gun-like structure is formed, said trigger providing means for allowing a user to actuate said slide relative said body; and

g) wherein during use the hand of the user is placed in a forward position wherein the index finger of a user'"'"'s hand is oriented toward the target tissue and is positioned from 1 inch to 4 inches proximal the tip of said needle.

2. The device of claim 1 wherein:

a) a respective one of said pair of arms includes a plurality of apertures formed thereon, said apertures being spaced generally about the length of said one of said pair of arms; and

b) a detent locking mechanism disposed substantially within said handgrip, said detent locking mechanism having an upwardly spring biased locking detent oriented and configured to selectively engage a respective one of said plurality of apertures, said engagement between said locking detent and said respective one of said plurality of apertures maintaining said slide and said body in releasably rigid attachment.

3. The device of claim 2 wherein said detent locking mechanism further includes a knob protruding outwardly from said handle, said knob allowing the user to selectively engage said locking detent with a respective one of said plurality of apertures, said knob extending outwardly from said handle such that said knob may be manually accessed by the hand of the user.

4. The device of claim 3 wherein said knob of said locking detent mechanism is positioned upon said handgrip so as to be accessed by the thumb of said user.

5. The device of claim 2 wherein when said slide is retracted, a vacuum is generated within said syringe and said needle, said retraction of said slide being selectively controllable by said detent locking mechanism.

6. The device of claim 3 wherein said knob is releasably attachable to said locking detent mechanism on either side of said handle, said attachment to either side of said handle providing means for allowing said device to be used by either the left or right hand of a user.

7. The device of claim 1 wherein said device is fabricated from sterilizable materials.

8. The device of claim 7 wherein said device is fabricated from at least one of the group of materials consisting of:

a) stainless steel;

b) aluminum; and

c) heat stable plastic.

9. The device of claim 1 wherein said body includes first and second collars formed thereon for attaching said syringe to said body.

10. A manually operated aspirating device used in combination with a conventional needle and syringe with plunger comprising:

a) a handle releasably attachable to said syringe, said handle comprising at least one collar formed thereon for attaching said syringe to said handle;

b) a slide slidably attachable to said handle, said slide comprising a slot formed thereon for releasably engaging said plunger, said slide being so attachable to said handle that when said syringe is attached to said handle, said slide may selectively position said plunger relative said syringe;

c) said slide comprises a generally U-shaped member having a closed end and a pair of arms, a respective one of said pair of arms includes a plurality of apertures formed thereon, said apertures being spaced about the length of said one of said pair of arms, said slot for releasably engaging said plunger being formed at the closed end of said generally U-shape; and

d) said handle comprises first and second channels formed thereon for slidably engaging a respective one of said pair of arms and said handle also comprises a detent locking mechanism disposed therein, said detent locking mechanism comprising an upwardly spring biased locking detent oriented and configured to selectively engage a respective one of said plurality of apertures, said engagement between said locking detent and said respective one of said plurality of apertures maintaining said slide and said handle in releasably rigid attachment.

11. The device of claim 10 wherein said detent locking mechanism further comprises a knob protruding outwardly from said handle, said knob allowing the user to selectively engage said locking detent with a respective one of said plurality of apertures, said knob extending outwardly from said handle such that said knob may be manually accessed by the hand of the user.

12. The device of claim 11 wherein said knob of said locking detent mechanism is positioned upon said handle so as to be accessed by the thumb of said user.

13. The device of claim 10 wherein when said slide is retracted, a vacuum is generated within said syringe and said needle, said retraction of said slide being selectively controllable by said detent locking mechanism.

14. The device of claim 11 wherein said knob is releasably attachable to said locking detent mechanism on either side of said handle, said attachment to either side of said handle providing means for allowing said device to be used by either the left or right hand of a user.

15. The device of claim 10 wherein said device is fabricated from sterilizable materials.

16. The device of claim 10 wherein said device is fabricated from at least one of the group of materials consisting of:

a) stainless steel;

b) aluminum; and

c) heat stable plastic.

17. The device of claim 10 wherein said handle comprises first and second collars formed thereon for attaching said syringe to said handle.