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Catheter aseembly blood control device and related methods

A technology of catheter components and catheters, applied in the direction of catheters, internal balance valves, instruments introduced into the body, etc.

Inactive Publication Date: 2015-07-15
B BRAUN MELSUNGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The distal chamber communicates with the catheter tube

Method used

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  • Catheter aseembly blood control device and related methods
  • Catheter aseembly blood control device and related methods
  • Catheter aseembly blood control device and related methods

Examples

Experimental program
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Embodiment Construction

[0024] first refer to figure 1 and figure 2 , the embodiment of the catheter assembly 18 includes a catheter adapter 20 consisting of a catheter hub 22 and a septum hub 24 . Catheter hub 22 has a distal end 26 and a proximal end 28 . Catheter tube 30 extends distally from catheter hub 20 and terminates in a distal end 32 . In the illustrated embodiment, a septum hub 24 is attached to the proximal end 28 of the catheter hub 22 . It should be appreciated that the septum hub 24 may be attached to the catheter hub 22 in a variety of ways including, for example, being threaded onto the proximal flange 34 . In other embodiments, septum hub 24 may be integrally included within catheter hub 22 such that catheter adapter 20 is a single piece.

[0025] Continue to refer to Figure 1-2 , the needle hub 36 may be disposed at or near the proximal end 38 of the septum hub 24 . Preferably, a hollow introducer needle 40 is attached to the needle hub 36 and extends through the catheter ...

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PUM

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Abstract

A catheter assembly includes a catheter hub and an introducer needle. The introducer needle extends through the catheter hub and through a catheter tube so as to assist placement of the catheter tube into a patient's blood vessel. Blood flashback into the catheter tube and / or catheter hub can indicate when the catheter tube is properly positioned within the blood vessel. After proper catheter tube placement is confirmed through blood flashback, the introducer needle is withdrawn. A septum blocks flashback blood from flowing proximally out of the catheter hub. One or more air vents enable air within the hub to vent when flashback blood enters the catheter hub. A porous hydrophobic material covers the one or more air vents. The hydrophobic material allows the air to flow therethrough and through the vents, but repels blood, blocking blood from flowing through the air vents.

Description

Background technique [0001] The present disclosure relates to the field of infusion devices, and more particularly to peripheral intravenous (IV) catheters. [0002] Catheter assemblies for IV catheters generally include a flexible catheter, or catheter tube, that is connected to a distal end of a catheter adapter, which may include a catheter hub. The catheter adapter holds the catheter tube so that other components can interact with the catheter tube. To place the catheter tube within the patient's blood vessel, an introducer needle is coupled to the catheter adapter such that the needle extends through the catheter adapter and the catheter tube, with the sharp distal tip of the needle positioned just beyond the distal end of the catheter tube Ends. A clinician uses the introducer needle to puncture the patient's tissue and place the distal end of the catheter tube in the blood vessel. [0003] Once the needle tip and catheter tube are in the vessel, the clinician typical...

Claims

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Application Information

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IPC IPC(8): A61M5/14
CPCA61M25/0606A61M25/0097A61M2205/7536A61M39/22A61M25/0693A61M39/06A61M39/0693A61M2039/064
Inventor S.Y.陈
Owner B BRAUN MELSUNGEN AG
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