Intravenous catheter insertion and blood sample devices and method of use
AssigneeVascular Pathways, Inc.
InventorAmir Belson
Life of this patent
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Abstract
Devices and methods for guidewire assisted placement of catheters into blood vessels are described. Some of the devices and methods relate to automated or partially automated or assisted insertion and placement of an intravenous catheter into a vein or artery of a patient. Other of the devices are blood draw devices and methods for insertion and placement of an intravenous device into a vein or artery of a patient or to withdraw a blood sample from the patient. The devices also provide for guide wire tip inspection after use.
Claims47
A method of introducing a catheter into a vessel in a patient, comprising;
- inserting a needle into the vessel until a bleed back indication is provided;
- advancing a guide wire through the needle and into the vessel;
- activating a catheter advancement device;
- and
- propelling the catheter with the catheter advancement device to move along the guide wire and into the vessel.
A method of introducing a catheter into a vessel in a patient, comprising;
- inserting a needle into the vessel until a bleed back indication is provided as a signal produced by a bleed back sensor in communication with the needle;
- activating a guide wire advancement device;
- propelling a guide wire through the needle and into the vessel;
- and
- advancing a catheter along the guide wire and into the vessel.
An intravenous catheter insertion device, comprising:
- a housing having an interior space, a proximal end and a distal end defining a housing length there between;
- an access needle having a lumen, the access needle positioned within the interior space such that a distal end of the needle extends beyond the housing distal end;
- an intravenous catheter having a proximal end and a distal end, a hub on the proximal end and a lumen extending through the hub to the distal end, the intravenous catheter positioned within the housing distal end with the intravenous catheter lumen over the access needle;
- a guide wire within the interior space and the access needle lumen;
- and
- a catheter advancement device on the housing coupled to the catheter such that operation of the catheter advancement device moves the catheter relative to the access needle.
A method of introducing a catheter into a vessel in a patient, comprising;
- inserting a needle into the vessel until a bleed back indication is provided;
- activating a guide wire advancement device;
- propelling a guide wire through the needle and into the vessel;
- stopping the propelling step when an insertion resistance detector indicates that a detected resistance to guide wire advancement exceeds an allowable limit;
- and
- advancing a catheter along the guide wire and into the vessel.
A method of introducing a catheter into a vessel in a patient, comprising;
- inserting a needle into the vessel until a bleed back indication is provided;
- activating a guide wire advancement device;
- propelling a guide wire through the needle and into the vessel;
- stopping the propelling step when a resistance to guide wire advancement is greater than a force used to propel the guide wire;
- and
- advancing a catheter along the guide wire and into the vessel.
Dependencies are inferred from the claim text.