Blood Draw Device

Abstract

A blood draw device includes a catheter, an introducer having a proximal end portion and a distal end portion, an actuator movably coupled to the introducer, the actuator configured to move relative to the introducer to move the catheter between a first position, in which the catheter is disposed within the introducer, and a second position, in which the distal end portion of the catheter is disposed beyond the distal end portion of the introducer such that at least a first portion of the catheter is disposed within the peripheral intravenous line when the introducer is coupled to the peripheral intravenous line, and a catheter support movably coupled to the introducer. The catheter support including a bracket portion and a hub portion including the passageway and extending from the bracket portion. The bracket portion of the catheter support is biased against a portion of the introducer.

Description

Claims

1. A blood draw device comprising: a catheter having a proximal end portion and a distal end portion and defining a lumen extending through the proximal end portion and the distal end portion;an introducer having a proximal end portion and a distal end portion, the introducer defining an inner volume configured to movably receive the catheter, the distal end portion of the introducer having a lock configured to couple the introducer to an indwelling peripheral intravenous line;an actuator movably coupled to the introducer, the actuator having a first portion disposed outside of the introducer and a second portion disposed in the inner volume of the introducer and coupled to the proximal end portion of the catheter, the actuator configured to move relative to the introducer to move the catheter between a first position, in which the catheter is disposed within the introducer, and a second position, in which the distal end portion of the catheter is disposed beyond the distal end portion of the introducer such that at least a first portion of the catheter is disposed within the peripheral intravenous line when the introducer is coupled to the peripheral intravenous line; anda catheter support defining a passageway, movably coupled to the introducer, and positioned between the actuator and the distal end portion of the introducer, the catheter support comprising a bracket portion and a hub portion including the passageway and extending from the bracket portion,wherein the catheter extends from the second portion of the actuator through the passageway of the catheter support to the distal end portion of the introducer, and during movement of the actuator to move the catheter from the first position to the second position, the actuator contacts at least a portion of the catheter support and moves the catheter support with respect to the introducer, andwherein the bracket portion of the catheter support is biased against a portion of the introducer.

2. The blood draw device of claim 1, wherein the bracket portion comprises a cantilever arm having a first end extending from the hub portion of the catheter support and a second end opposite the first end, wherein, prior to assembly, the second end of the cantilever arm defines a first distance between the second end of the cantilever arm and the hub portion, and wherein, after assembly within the introducer, the cantilever arm defines a second distance between the second end of the cantilever arm and the hub portion, the second distance larger than the first distance.

3. The blood draw device of claim 2, wherein the actuator comprises a cam member configured to engage and move the cantilever arm.

4. The blood draw device of claim 3, further comprising a detent positioned in a slot in the introducer, wherein the detent engages the catheter support to restrict movement of the catheter support, and wherein the cam member of the actuator is configured to lift the cantilever arm over the detent.

5. A blood draw device comprising: a catheter having a proximal end portion and a distal end portion and defining a lumen extending through the proximal end portion and the distal end portion;an introducer having a proximal end portion and a distal end portion, the introducer defining an inner volume configured to movably receive the catheter, the distal end portion of the introducer having a lock configured to couple the introducer to an indwelling peripheral intravenous line;an actuator movably coupled to the introducer, the actuator having a first portion disposed outside of the introducer and a second portion disposed in the inner volume of the introducer and coupled to the proximal end portion of the catheter, the actuator configured to move relative to the introducer to move the catheter between a first position, in which the catheter is disposed within the introducer, and a second position, in which the distal end portion of the catheter is disposed beyond the distal end portion of the introducer such that at least a first portion of the catheter is disposed within the peripheral intravenous line when the introducer is coupled to the peripheral intravenous line; anda catheter support defining a passageway, movably coupled to the introducer, and positioned between the actuator and the distal end portion of the introducer, the catheter support having a first end and a second end positioned opposite the first end,wherein the catheter extends from the second portion of the actuator through the passageway of the catheter support to the distal end portion of the introducer, and during movement of the actuator to move the catheter from the first position to the second position, the actuator contacts at least a portion of the catheter support and moves the catheter support with respect to the introducer, andwherein the second end of the catheter support comprises a nose cone configured to engage a lead-in surface of the introducer.

6. The blood draw device of claim 5, wherein the nose cone is engageable with the introducer to lock in place when the introducer is fully advanced.

7. The blood draw device of claim 6, wherein the nose cone engages with the introducer in a press-fit with the introducer.

8. The blood draw device of claim 5, wherein the lead-in surface of the introducer is configured to self-align when the catheter support is advanced to the second position.

9. A blood draw device comprising: a catheter having a proximal end portion and a distal end portion and defining a lumen extending through the proximal end portion and the distal end portion;an introducer having a proximal end portion and a distal end portion, the introducer defining an inner volume configured to movably receive the catheter, the distal end portion of the introducer having a lock configured to couple the introducer to an indwelling peripheral intravenous line;an actuator movably coupled to the introducer, the actuator having a first portion disposed outside of the introducer and a second portion disposed in the inner volume of the introducer and coupled to the proximal end portion of the catheter, the actuator having a proximal end and a distal end positioned opposite the proximal end, the actuator configured to move relative to the introducer to move the catheter between a first position, in which the catheter is disposed within the introducer, and a second position, in which the distal end portion of the catheter is disposed beyond the distal end portion of the introducer such that at least a first portion of the catheter is disposed within the peripheral intravenous line when the introducer is coupled to the peripheral intravenous line; anda catheter support defining a passageway, movably coupled to the introducer, and positioned between the actuator and the distal end portion of the introducer,wherein the catheter extends from the second portion of the actuator through the passageway of the catheter support to the distal end portion of the introducer, and during movement of the actuator to move the catheter from the first position to the second position, the actuator contacts at least a portion of the catheter support and moves the catheter support with respect to the introducer, andwherein the introducer comprises a detent and a plurality of ribs and the distal end of the actuator comprises a tab configured to engage the detent and the plurality of ribs as the actuator is moved relative to the introducer.

10. The blood draw device of claim 9, wherein the detent is positioned intermediate the proximal end portion and the distal end portion of the introducer, and wherein the introducer comprises an advancement reducer extending from the proximal end portion to the detent.

11. A blood draw device comprising: a catheter having a proximal end portion and a distal end portion and defining a lumen extending through the proximal end portion and the distal end portion;an introducer having a proximal end portion and a distal end portion, the introducer comprises a first member attached to a second member, the introducer defining an inner volume configured to movably receive the catheter, the distal end portion of the introducer having a lock configured to couple the introducer to an indwelling peripheral intravenous line;an actuator movably coupled to the introducer, the actuator having a first portion disposed outside of the introducer and a second portion disposed in the inner volume of the introducer and coupled to the proximal end portion of the catheter, the actuator configured to move relative to the introducer to move the catheter between a first position, in which the catheter is disposed within the introducer, and a second position, in which the distal end portion of the catheter is disposed beyond the distal end portion of the introducer such that at least a first portion of the catheter is disposed within the peripheral intravenous line when the introducer is coupled to the peripheral intravenous line; anda catheter support defining a passageway, movably coupled to the introducer, and positioned between the actuator and the distal end portion of the introducer,wherein the catheter extends from the second portion of the actuator through the passageway of the catheter support to the distal end portion of the introducer, and during movement of the actuator to move the catheter from the first position to the second position, the actuator contacts at least a portion of the catheter support and moves the catheter support with respect to the introducer, andwherein the first member of the introducer comprises one of a peg and an opening and the second member of the introducer comprises the other of the peg and the opening, the peg secured within the opening via an ultrasonic weld to secure the first member of the introducer to the second member of the introducer.

12. The blood draw device of claim 11, further comprising a plurality of pegs positioned on one of the first member and the second member of the introducer and a plurality of openings on the other of the first member and the second member of the introducer for receiving the respective plurality of pegs.