Integrated needle and cannula for plastic surgery

• US 10,286,161 B2
• Filed: 08/19/2016
• Issued: 05/14/2019
• Est. Priority Date: 08/20/2015
• Status: Active Grant

• Current Assignee: Barbara Persons
• Original Assignee: Barbara Persons
• Inventors: Persons, Barbara
• Primary Examiner(s): Hayman, Imani N
• Application Number:
  US15/242,455
• Publication Number:
  US 20170049972A1
• Time in Patent Office: 998 Days
• CPC Class Codes: A61B 17/06066 Needles, e.g. needle tip configurations making needles B21G1/00
• CPC Class Codes: A61B 17/34 Trocars; Puncturing needles pointed biopsy instruments A61B10/0233; devices for piercing the ear-lobes A44C7/001; seals or hemostasis valves A61M39/06
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00792 Plastic surgery
• CPC Class Codes: A61B 2017/06009 having additional means for releasably clamping the suture to the needle, e.g. actuating rod slideable within the needle
• CPC Class Codes: A61B 2017/06052 Needle-suture combinations in which a suture is extending inside a hollow tubular needle, e.g. over the entire length of the needle hollow suture needles A61B2017/061
• CPC Class Codes: A61B 2017/06085 having a blunt tip blunt dissectors A61B2017/320044
• CPC Class Codes: A61B 2017/06176 with protrusions, e.g. barbs
• CPC Class Codes: A61F 2/0059 Cosmetic or alloplastic implants A61F2/10 - A61F2/16, A61F2/28 take precedence
• CPC Class Codes: A61M 19/00 Local anaesthesia syringes therefor A61M5/00; Hypothermia A61M5/42 takes precedence; cooling blood in a bypass of the arterial system A61M1/36
• CPC Class Codes: A61M 2202/203 Bacteria
• CPC Class Codes: A61M 2210/04 Skin
• CPC Class Codes: A61M 5/178 Syringes
• CPC Class Codes: A61M 5/3232 Semi-automatic needle retraction, i.e. in which triggering of the needle retraction requires a deliberate action by the user, e.g. manual release of spring-biased retraction means
• CPC Class Codes: A61M 5/3286 Needle tip design, e.g. for improved penetration
• CPC Class Codes: A61M 5/3287 Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take precedence
• CPC Class Codes: A61M 5/3297 Needles arranged coaxially

Abstract

An integrated needle and cannula assembly for plastic surgery including a syringe connected to a blunt-tipped cannula where the blunt-tipped cannula is inserted into the hollow annular space of a hypodermic needle. In operation, the medical practitioner penetrates into the patient'"'"'s skin using the hypodermic needle and then slides the blunt-tipped cannula through the annular space of the needle. A transporter assembly can be interposed between the syringe and the overlapping needle/cannula. The transporter assembly may include a retractable inner needle tube attached to the hypodermic needle and an external transporter housing which connects the syringe to the cannula through a cannula connector. Once the blunt tipped cannula is under the patient'"'"'s skin, the needle is preferably withdrawn from the patient'"'"'s skin to allow sub-dermal substances to be injected using only the blunt-tipped cannula. Withdrawal of the needle can be assisted with either a pull spring or push spring. In an alternative embodiment, a sharp-tipped trocar inside a cannula is used to penetrate the patient'"'"'s skin. In a further alternative embodiment, a barbed surgical thread may be attached to said cannula to perform thread-lift procedures.

Claims

1. An integrated needle and cannula assembly comprising:

a syringe;

a transporter assembly having an external transporter housing and an inner needle tube slidably and concentrically located within a hollow annular space of said external transporter housing;

wherein said external transporter housing is attached at opposite ends to a syringe and to a cannula;

further wherein said inner needle tube is attached to the proximal end of a hypodermic needle having a hollow annular space such that said cannula is inserted concentrically into the hollow annular space of said hypodermic needle and said cannula is at least twice as long as said hypodermic needle.

2. The integrated needle and cannula assembly of claim 1 wherein said external transporter housing has a connector which connects said external transporter housing to said syringe and said cannula.

3. The integrated needle and cannula assembly of claim 2 wherein said connector is concentrically located within a hollow annular space of said inner needle tube.

4. The integrated needle and cannula assembly of claim 3 wherein said connector has a base attaching said connector to said external transporter housing.

5. The integrated needle and cannula assembly of claim 4 wherein said inner needle tube has an annular gap which fits around said connector base.

6. The integrated needle and cannula assembly of claim 1 wherein said cannula is a blunt-tipped cannula.

7. The integrated needle and cannula assembly of claim 6 wherein said blunt-tipped cannula is approximately 1.5 inches in length and 27 gauge.

8. The integrated needle and cannula assembly of claim 1 wherein said external transporter housing and inner needle tube are generally cylindrical in shape.

9. The integrated needle and cannula assembly of claim 1 further comprising a spring capable of slidably retracting said inner needle tube relative to said external transporter housing.

10. The integrated needle and cannula assembly of claim 9 wherein said spring pulls said inner needle tube to retract said inner needle tube relative to said external transporter housing.

11. The integrated needle and cannula assembly of claim 9 wherein said spring pushes said inner needle tube to retract said inner needle tube relative to said external transporter housing.

12. The integrated needle and cannula assembly of claim 9 further comprising a trigger to activate spring movement.

13. The integrated needle and cannula assembly of claim 12 wherein said trigger is spring biased.

14. An integrated needle and cannula assembly for injection of medical substances underneath animal dermal tissue comprising:

a syringe;

a transporter assembly having an external transporter housing and an inner needle tube slidably and concentrically located within a hollow annular space of said external transporter housing;

said external transporter housing is attached at opposite ends to a syringe and to a cannula;

said inner needle tube is attached to the proximal end of a hypodermic needle having a hollow annular space such that said cannula is inserted concentrically into the hollow annular space of said hypodermic needle; and

,

wherein said hypodermic needle can puncture said dermal tissue and retract relative to said cannula so that said medical substances are sub-dermally injected through said cannula without said hypodermic needle touching dermal tissue during injection.

15. The integrated needle and cannula assembly of claim 14 further comprising a spring capable of retracting said hypodermic needle relative to said cannula.

16. The integrated needle and cannula assembly of claim 15 further comprising a trigger to activate spring movement.

17. The integrated needle and cannula assembly of claim 14 wherein said cannula is a blunt-tipped cannula.