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US 10,118,023 B2Granted
Closed-system catheter assembly
AssigneeCareFusion 303, Inc.
InventorsJonathan Yeh, George Mansour, Chris Zollinger
Life of this patent
Estimating the term…
Abstract
A catheter system including an insertion device and a catheter device. The insertion device includes a housing, a latch, a needle for insertion into a patient; and a spring. The catheter device includes a housing comprising a chamber, and a seal disposed in said chamber. The seal is configured to reseal when the needle is withdrawn from the seal such that blood is sealed in the chamber. The spring relaxes and thereby retracts the needle entirely into the housing of the insertion device when the latch decouples from the catheter device.
Claims17
A catheter system comprising:
- an insertion device comprising:
- a housing;
- a latch, coupled to and extending from said housing, said latch comprising an external portion and an internal portion;
- a needle slidably disposed within said housing;
- a spring;
- and
- a catheter device, said catheter device comprising:
- a housing comprising a portion configured to engage with said external portion of said latch of said insertion device, wherein:
- said latch comprises a first position in which said internal portion of said latch prevents extension of said spring and a second position in which said internal portion is configured to release said spring to extend such that said spring relaxes and thereby retracts said needle entirely into said housing of said insertion device, and wherein said latch is configured to be held in said first position by an engagement of said external portion with said portion of said housing of said catheter device and to be released to said second position when said external portion of said latch is configured to decouple from said catheter device, and
- said catheter device further comprises a chamber and a seal disposed within said chamber, wherein said seal is configured to be punctured by an extension set such that blood is able to exit said chamber into said extension set.
7 more elements
A method, comprising:
- providing a catheter system, the catheter system comprising:
- an insertion device comprising:
- a needle held by a needle collet,
- a spring, wherein said spring is compressed and abuts against said needle collet, and
- a latch comprising an internal portion that prevents extension of said spring, and an external portion, and
- a catheter device, wherein said needle of said insertion device extends through and out of said catheter device and is at least partially disposed within a catheter of said catheter device, and wherein said external portion of said latch is engaged with a housing of said catheter device;
- and
- inserting said needle and said catheter into a vein of a patient, wherein:
- the catheter device further comprises a chamber and a seal,
- prior to said insertion, said needle extends through said seal and through said chamber, and
- when said needle is withdrawn through said catheter device entirely into said insertion device, the seal is configured to reseal so that blood entering into said chamber from said vein via said catheter is sealed within said chamber to prevent blood loss.
8 more elements
A method, comprising:
- inserting a catheter of a catheter device into a vein of a patient using a needle of a catheter insertion device that is coupled to said catheter device;
- withdrawing said needle from said catheter by decoupling said catheter insertion device from said catheter device without rotating said catheter insertion device relative to said catheter device;
- and
- coupling an extension set to said catheter device while said catheter is disposed within said vein without rotating said extension set relative to said catheter device, wherein said coupling comprises inserting a cannula of said extension set through a seal of said catheter device until at least one coupling feature of said extension set mechanically couples with at least one associated coupling feature of a housing of said catheter device.
1 more element
Dependencies are inferred from the claim text.