Intravenous therapy system having a needle hub and catheter hub

Patent metadata

Field	Value
Publication number	US-11850381-B2
Application number	US-202016743634-A
Country	US
Kind code	B2
Filing date	Jan 15, 2020
Priority date	Jan 18, 2019
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

An intravenous therapy system may include a housing to house an actuation hub, the actuation hub comprising; a needle hub operatively coupled to a needle to insert the needle into a patient's body; and a catheter hub operatively coupled to a catheter to insert the catheter into a patient's body, the catheter being formed coaxially with an outer surface of the needle; and an inflatable bladder formed along a length of the catheter to maintain the catheter in the patient's body.

First claim

The invention claimed is:

1. An intravenous therapy system, comprising:
a housing to house an actuation hub, the actuation hub comprising:
a needle hub operatively coupled to a needle to insert the needle into a body of the patient; and
a catheter hub fluidically coupled to a catheter to insert the catheter into the body, the catheter being formed coaxially with an outer surface of the needle;

an inflatable bladder formed along a length of the catheter to maintain the catheter in the body; and
a fluidic channel in fluid communication with both the inflatable bladder and the catheter hub such that the fluidic channel is configured for inflation of the inflatable bladder with a first fluid and infusion of a second fluid into a blood stream of the patient, wherein the first fluid and the second fluid are the same fluid;
wherein after insertion of the needle into the body, the needle is configured to be retracted into the needle hub, thus maintaining a distal end of the needle within the needle hub, to coaxially remove the needle from within the catheter, wherein after insertion of the needle into the body, the needle is configured to be retracted into the needle hub such that the needle does not interfere with the flow of fluid through the fluidic channel to the inflatable bladder and the catheter hub but also maintains a seal to prevent leakage out of the catheter or the fluidic channel.

2. The intravenous therapy system of claim 1 , wherein after insertion of the needle into the body, the needle hub and the needle may be removed from the actuation hub.

3. The intravenous therapy system of claim 1 , further comprising a bladder fluid injection port to couple a fluid reservoir to the inflatable bladder via a length of tubing, wherein the fluidic channel extends through the length of tubing.

4. The intravenous therapy system of claim 1 , further comprising a visual indicator to indicate when the needle and the catheter have accessed a blood vessel within the body.

5. The intravenous therapy system of claim 1 , further comprising an adhesive formed on a bottom surface of the housing to secure the intravenous therapy system to a skin of the patient.

6. The intravenous therapy system of claim 5 , further comprising an adhesive-defeating fluid port to receive an adhesive-defeating fluid to reduce adhesive effects of the adhesive during removal of the intravenous therapy system from the skin.

7. The intravenous therapy system of claim 1 , further comprising a window to allow a clinician implementing the intravenous therapy system to see through the housing and to a patient's skin.

8. The intravenous therapy system of claim 1 , wherein the needle hub and the catheter hub further comprise a locking mechanism that selectively locks and unlocks the needle hub and the catheter hub in an actuated position.

9. A peripheral intravenous catheter (PIVC), comprising:
a circular housing to house:
a needle hub operatively coupled to a needle to insert the needle into a body of a patient; and
a catheter hub operatively coupled to a catheter to insert the catheter into the body, the catheter being formed coaxially with an outer surface of the needle, wherein after insertion of the needle into the body, the needle is configured to be retracted into the needle hub, thus maintaining a distal end of the needle within the needle hub, to coaxially remove the needle from within the catheter;

an inflatable bladder formed along a length of the catheter to maintain the catheter in the body; and
a fluidic channel in fluid communication with both the inflatable bladder and the catheter hub such that the fluidic channel is configured for inflation of the inflatable bladder with a first fluid and infusion of a second fluid into a blood stream of the patient, wherein the first fluid and the second fluid are the same fluid,
wherein after insertion of the needle into the body, the needle is configured to be retracted into the needle hub such that the needle does not interfere with the flow of fluid through the fluidic channel to the inflatable bladder and the catheter hub but also maintains a seal to prevent leakage out of the catheter or the fluidic channel.

10. The PIVC of claim 9 , further comprising a visual indicator to indicate when the needle and the catheter have accessed a blood vessel within the patient's body.

11. The PIVC of claim 9 , further comprising a window to allow a clinician implementing the PIVC to see through the housing and to a patient's skin.

Assignees

• Becton Dickinson Co

Inventors

• Spataro Joseph
• Willybiro Kathryn
• Tran Huy
• Ma Yiping
• Peterson Bart D
• O'Bryan Jeffrey C
• Burkholz Jonathan Karl

Classifications

• A61M25/0606 Primary

  "Over-the-needle" catheter assemblies, e.g. I.V. catheters · CPC title

• A61M25/0009

  Making of catheters or other medical or surgical tubes · CPC title

• A61M25/04 Primary

  in the body, e.g. expansible {(A61M25/10, A61M16/0488 take precedence)} · CPC title

• A61M25/0631

  having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle · CPC title

• A61M25/0693

  Flashback chambers · CPC title