Peripheral IV catheter with enlargeable flashback chamber

Details Peripheral IV catheter with enlargeable flashback chamber Peripheral IV catheter with enlargeable flashback chamber

1987-03-27

1988-09-20

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604193, 604263, 604900, A61M 532

Patent

active

047722673

ABSTRACT:
An improvement is set forth in a peripheral IV catheter assembly which comprises a needle hub having proximal and distal ends and a central bore having a flashback chamber, blood in said chamber being observable through said needle hub. A needle extends from the distal end of the bore. A catheter hub fits about the needle and has its proximal end held by the distal end of the needle hub. A cannula fits about the needle with its proximal end engaged with the distal end of the catheter hub. A flashback plug has proximal and distal ends. Its distal end can engage with the proximal end of the needle hub in blocking relation to the needle hub bore. A protector has a proximal end engagable with the distal end of the needle hub with the passage about the catheter hub, the needle and the cannula. The improvement comprises wherein the distal end of the protector is engageable with the proximal end of the needle hub with the central passage in the protector in flow communication with the central bore in the needle hub. The protector is such that blood in the passage is observable through the protector. The flashback plug is adapted intermediate its ends to engage in the passage in the protector. The flashback chamber is extended by connecting it to the central passage in the protector. Also, the flashback plug can be used in the protector to protect against contamination.

REFERENCES:
patent: 3352306 (1967-11-01), Hirsch
patent: 3500828 (1970-03-01), Podhora
patent: 3677245 (1972-07-01), Welch
patent: 3859998 (1975-01-01), Thomas et al.
patent: 4710173 (1987-12-01), McFarlane

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