Inclined plane latching device for an IV catheter

Details Inclined plane latching device for an IV catheter Inclined plane latching device for an IV catheter

1999-10-22

2001-02-27

Kennedy, Sharon (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S263000, C604S110000, C604S164120, C604S168010

Reexamination Certificate

active

06193690

ABSTRACT:

BACKGROUND OF THE INVENTION
There are several types of safety intravenous catheter designs. Most of the designs are similar to syringes or blood sampling devices that are available today. One such design is shown in a patent issued to JAGGER et al on Jun. 3, 1986 U.S. Pat. No. 4,592,744. This is a safety blood sampling device however it requires two (2) hands to operate or to cover the needle cannula.
Blood samples are also taken with syringes and there are also many safety syringes available. Some of these designs have a sleeve or sheath that will cover the needle after it has been used. Some typical designs with sleeves or sheaths are Z. M. ROEHR et al U.S. Pat. No. 3,008,570, Z. M. ROEHR U.S. Pat. No. 3,107,785, BARTNER, et al U.S. Pat. No. 3,895,633, G. K. BURKE U.S. Pat. No. 3,306,291, GYURE et al U.S. Pat. No. 4,300,678, WINSTEAD HALL U.S. Pat. No. 4,356,822, SAMPSON U.S. Pat. No. 4,425,120, LARSON U.S. Pat. No. 4,639,249, HARBAUGH U.S. Pat. No. 4,655,751, STRAUSS U.S. Pat. No. 4,664,654, BRAGINETZ U.S. Pat. No. 466,435, SPENCER U.S. Pat. No. 4,702,738, MILORAD U.S. Pat. No. 4,702,739, SPENCER U.S. Pat. No. 4,801,295, PONCY U.S. Pat. No. 4,816,022, and HUGHES U.S. Pat. No. 4,840,619.
Other designs have a retractable needle such as WELTMAN U.S. Pat. No. 3,306,290, and DENT U.S. Pat. No. 4,392,859. These designs do not have a means whereby the needle is extended from the syringe and held in place in a positive and rigid position in order to first inject the needle prior to injecting the medication. Still other designs have methods of bending to render the needle harmless after the medication has been injected. Most of these designs have one major purpose and that is to prevent the spread of infectious diseases such as aids, hepatitis, or other diseases from an accidental injection with a contaminated needle into others after the needle of the syringe was inserted into a patient with the above mentioned disease. These various designs all work well to a degree, but they all fall short of their intended purpose during the act of covering the needle, or removing the needle, which requires two hands.
Other devices such as TSAO U.S. Pat. No. 5,019,044, TSAO U.S. Pat. No. 5,084,018, SHAW U.S. Pat. No. 5,267,961, SHAW U.S. Pat. No. 5,120,310, DYSARZ U.S. Pat. No. 4,978,343 and DYSARZ U.S. Pat. No. 4,973,316 are all capable of releasing the needle if the container that they are packed in are dropped or jarred severly.
These devices do not have a protective latching means but they rely on friction to restrain the needle with a biased spring.
SUMMARY
It is the object of this invention to provide an intravenous catheter device with a fail safe latch and release means wherein the latch and release means will not cause the needle to retract in the event of a shock due to dropping the packaged IV catheter.
Another object of the present invention is to render the needle of the intravenous catheter device useless after the needle is retracted into the flashback chamber of the intravenous catheter device to prevent the accidental reuse of the contaminated needle or to further prevent the reuse and abuse by users of illicit drugs.
It is still another object of the present invention to further prevent the accidental release of the needle cannula after the needle is in the flashback chamber of the intravenous catheter device.
The foregoing and other objects and advantages are attained by a device, an elongated hollow barrel, a spring needle, hub post and an end cap in combination with a failsafe latch and release means wherein when said intravenous catheter is used to inject a soft needle cannula into a vein in the body or part of the body in order to inject medication or other fluid at a consistent rate into the body, the fail safe latch and release means releases the biased spring needle cannula and further pulls the spring needle cannula into the flash back chamber of the intravenous catheter device rendering the contaminated spring needle cannula harmless to prevent the accidental pricking of others and to prevent a contaminated spring needle cannula from being released from the flash back chamber of the intravenous catheter device.
The features of the present invention can be best understood together with further objects and advantages by reference to the following descriptions taken in connection with accompanying drawings, wherein like numerals indicate like parts.


REFERENCES:
patent: 3306290 (1967-02-01), Weltman
patent: 4392859 (1983-07-01), Dent
patent: 4973316 (1990-11-01), Dysarz
patent: 4978343 (1990-12-01), Dysarz
patent: 5019144 (1991-05-01), Tsao
patent: 5084018 (1992-01-01), Tsao
patent: 5120310 (1992-06-01), Shaw
patent: 5267961 (1993-12-01), Shaw
patent: 5385551 (1995-01-01), Shaw
patent: 5389076 (1995-02-01), Shaw

Affiliated with

Also associated with

Rating

Inclined plane latching device for an IV catheter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inclined plane latching device for an IV catheter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inclined plane latching device for an IV catheter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2613353