Infiltration cannula

• US 8,506,551 B2
• Filed: 07/25/2011
• Issued: 08/13/2013
• Est. Priority Date: 05/21/2003
• Status: Expired due to Term

• Current Assignee: Jeffrey A. Klein
• Original Assignee: Jeffrey A. Klein
• Inventors: Klein, Jeffrey A.
• Primary Examiner(s): BOUCHELLE, LAURA A
• Application Number:
  US13/189,775
• Publication Number:
  US 20110282323A1
• Time in Patent Office: 750 Days
• Field of Search: 604/164.01, 604/506, 604/512, 604/171, 604/187, 604/239, 604/272, 604/542
• US Class Current: 604/506
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 37/00 Other apparatus for introducing media into the body for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30; Percutany, i.e. introducing medicines into the body by diffusion through the skin salt baths A61H33/04
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/3291 Shafts with additional lateral openings

Abstract

An infiltration cannula and method of using the infiltration cannula during a tumescent infiltration procedure are disclosed herein. The infiltration cannula may have an outwardly flaring hub which may be wedged into an adit of a patient to minimize leakage of fluid being infiltrated into the patient. Also, the infiltration cannula may be utilized to hydrate a dehydrated patient by a medically untrained person. The infiltration cannula may also be used to deliver an antibiotic/vasoconstrictive drug solution to minimize surgical site infections.

Claims

1. A method of minimizing infections at a surgical site, the method comprising the steps of:

providing a solution containing an antibiotic and a vasoconstrictive drug;

inserting a tubular needle having apertures into an adit of the patient such that the tubular needle is adjacent the surgical site to infiltrate the solution at the surgical site;

flowing the antibiotic/vasoconstrictive drug solution through the tubular needle and out of the apertures to constrict the blood vessels and delay systemic absorption of the antibiotic for prolonging a length of time that the antibiotic remains at the surgical site; and

performing surgery at the surgical site wherein a first surgical incision is made after a period of time has elapsed for the antibiotic/vasoconstrictive drug solution has permeated the surgical site during the flowing step.

2. The method of claim 1 further comprising the step of mixing lidocaine into the antibiotic/vasoconstrictive drug solution for providing an antibacterial effect.