Syringe apparatus for disinfection of central line port needleless connector and method of disinfecting a central line port needleless connector

Abstract

A syringe apparatus for disinfection of central line port needleless connector and method of disinfecting a central line port needleless connector. The syringe apparatus includes a syringe tip including a first O-ring including a disinfectant located in a first section of a tip cavity between an inner tip portion of the syringe tip and an outer tip portion of the syringe tip. The syringe tip preferably further includes one or more Luer lock sections and one or more additional O-rings. The syringe apparatus preferably also includes a cap including an inner layer including a disinfectant.

What is claimed is: 
     
         1 . A syringe apparatus comprising:
 a. a barrel;   b. a plunger; and   c. a syringe tip, the syringe tip further comprising:
 i. an inner tip portion extending from a first end of the barrel to a distal end of the syringe tip; 
 ii. an outer tip portion concentrically positioned outside the inner tip portion, wherein the outer tip portion extends from a first end of the barrel to a distal end of the outer tip portion, and wherein the inner tip portion extends farther away from the barrel than the outer tip portion; 
 iii. a tip cavity formed between the inner tip portion and the outer tip portion, the tip cavity comprising a first section proximate to the distal end of the outer tip portion and a second section adjacent to the first section located closer to the barrel than the first section; 
 iv. a first O-ring inside the first section wherein the O-ring comprises a first disinfectant substance absorbed into the O-ring; and 
 v. a first thread inside the second section extending inwardly and winding helically from an inner wall of the outer tip portion. 
   
     
     
         2 . The syringe apparatus of  claim 1  wherein the outer tip portion flares outward along the distal end of the outer tip portion. 
     
     
         3 . The syringe apparatus of  claim 1  wherein the syringe tip further comprises:
 i. the tip cavity further comprising a third section adjacent to the second section and located closer to the barrel than the second section; and 
 ii. a second O-ring inside the third section wherein the second O-ring is dry. 
 
     
     
         4 . The syringe apparatus of  claim 3  wherein the syringe tip further comprises:
 i. the tip cavity further comprising a fourth section adjacent to the third section and located closer to the barrel than the third section; and 
 ii. a second thread inside the fourth section extending inwardly and winding helically from the inner wall of the outer tip portion. 
 
     
     
         5 . The syringe apparatus of  claim 1  further comprising a cap attached to the outer tip portion, the cap further comprising:
 i. an outer shell; and 
 ii. an inner layer comprising a second disinfectant substance absorbed into the inner layer. 
 
     
     
         6 . The syringe of  claim 5  further comprising a seal ribbon wrapped around the interface between the cap and the outer tip portion, providing an air-tight seal that prevents drying of the first disinfectant substance in the cap and the second disinfectant substance in the first O-ring. 
     
     
         7 . The syringe apparatus of  claim 6  wherein the first disinfectant substance comprises the second disinfectant substance. 
     
     
         8 . The syringe apparatus of  claim 6  wherein the outer tip portion further comprises an outer ridge along the distal end of the outer tip portion, wherein the cap further comprises a bulge along a base of the cap, and wherein the seal ribbon is wrapped around the outer ridge and the bulge, sealing the cap to the outer tip portion. 
     
     
         9 . The syringe apparatus of  claim 1  wherein the syringe tip further comprises:
 i. the tip cavity further comprising a third section adjacent to the second section and located closer to the barrel than the second section; and 
 ii. a second thread inside the third section extending inwardly and winding helically from the inner wall of the outer tip portion. 
 
     
     
         10 . The syringe apparatus of  claim 5  further comprising a fluid in the barrel of the syringe apparatus wherein the fluid comprises a saline solution. 
     
     
         11 . A method for disinfecting a needleless connector, the method comprising:
 a. inserting an inner tip portion of a syringe tip of a syringe apparatus into a receiving cavity of a needleless connector until a first end of the needleless connector reaches an outer tip portion of the syringe tip and compresses a first O-ring inside a tip cavity of the syringe tip defined between the inner tip portion and the outer tip portion to release disinfectant stored in the first O-ring onto the needleless connector; and   b. twisting the syringe apparatus relative to the needleless connector to engage a first thread in the syringe tip with one or more connector ridges in the needleless connector.   
     
     
         12 . The method of  claim 11  further comprising pushing the syringe tip further into the receiving cavity to cause the one or more connector ridges to press against a second O-ring in the tip cavity of the syringe tip wherein the second O-ring is initially dry. 
     
     
         13 . The method of  claim 12  further comprising twisting the syringe tip relative to the needleless connector to engage a second thread in the syringe tip with one or more connector ridges in the needleless connector. 
     
     
         14 . A method for injecting medicine into a patient through a central IV line, the method comprising:
 a. displacing liquid from a barrel of a syringe apparatus by pushing a plunger of the syringe inward;   b. inserting a syringe tip of the syringe apparatus into a medicine vial;   c. extracting medicine from the medicine vial using the syringe apparatus;   d. disengaging the syringe apparatus from the medicine vial;   e. inserting an inner tip portion of a syringe tip of a syringe apparatus into a receiving cavity of a needleless connector in fluid communication with a patient's bloodstream until a first end of the needleless connector reaches an outer tip portion of the syringe tip and compresses a first O-ring inside a tip cavity of the syringe tip defined between the inner tip portion and the outer tip portion to release disinfectant stored in the first O-ring onto the needleless connector; and   f. injecting the extracted medicine from the syringe apparatus to the patient by injecting the extracted medicine to the needleless connector.   
     
     
         15 . The method of  claim 14  wherein the syringe tip used in the method comprises:
 i. an inner tip portion extending from a first end of a barrel of the syringe apparatus to a distal end of the syringe tip; 
 ii. an outer tip portion concentrically positioned outside the inner tip portion, wherein the outer tip portion extends from a first end of the barrel to a distal end of the outer tip portion a distance of length L, and wherein the inner tip portion extends away from the barrel than the outer tip portion a distance of greater than the length L. 
 
     
     
         16 . The method of  claim 14  wherein the distal end of the syringe tip comprises a multi-faceted blunt tip. 
     
     
         17 . The method of  claim 14  wherein the inserting step d further comprises twisting the syringe tip relative to the needleless connector to engage a first thread in the syringe tip with one or more connector ridges in the needleless connector. 
     
     
         18 . The method of  claim 17  wherein the inserting step d further comprises pushing the syringe tip further into the receiving cavity to cause the one or more connector ridges to press against a second O-ring in the syringe tip. 
     
     
         19 . The method of  claim 18  wherein the inserting step d further comprises twisting the syringe tip relative to the needleless connector to engage a second thread in the syringe tip with one or more connector ridges in the needleless connector.