Back to results
US 12,672,807 B2Granted
Blood collection adapter and related devices to reduce hemolysis
AssigneeBecton, Dickinson and Company
InventorsJonathan Karl Burkholz, Yiping Ma
Life of this patent
Estimating the term…
Abstract
An adapter may include a distal end, which may be configured to couple to a catheter assembly. The adapter may include a proximal end, which may include a proximal connector configured to couple to a blood collection device. The adapter may include a fluid pathway disposed between the distal end and the proximal end, wherein the fluid pathway includes a non-linear portion. The non-linear portion may form a coil shape, an S-shape, or another suitable shape.
Claims20
An adapter, comprising:
- a distal end, comprising a distal connector configured to couple to a catheter assembly;
- a proximal end, comprising a proximal connector configured to couple to a blood collection device;
- a middle portion disposed between the distal end and the proximal end and joining the distal connector to the proximal connector, the middle portion being integrally formed with the distal connector and the proximal connector to provide a singular, unitary adapter body, with a lumen extending through the distal end, the middle portion, and the proximal end;
- and
- a tube positioned within the lumen, in the middle portion, the tube defining a fluid pathway disposed between the distal end and the proximal end, wherein the fluid pathway includes a non-linear portion;
- wherein each of the proximal connector and the distal connector comprises a luer connector integrally formed with the middle portion, with the distal luer connector extending out distally from the middle portion to form the distal end and the proximal luer connector extending out proximally from the middle portion to form the proximal end;
- and
- wherein the fluid pathway comprises a geometric factor, Gf, configured to reduce hemolysis in blood flowing proximally through the adapter to the blood collection device.
5 more elements
A blood collection set, comprising:
- a blood collection device;
- and
- an adapter, comprising:
- a distal end, comprising a distal connector configured to couple to a catheter assembly;
- a proximal end, comprising a proximal connector coupled to the blood collection device;
- a middle portion disposed between the distal end and the proximal end and joining the distal connector to the proximal connector, the middle portion being integrally formed with the distal connector and the proximal connector to provide a singular, unitary adapter body, with a lumen extending through the distal end, the middle portion, and the proximal end;
- and
- a tube positioned within the lumen, in the middle portion, the tube defining a fluid pathway disposed between the distal end and the proximal end, wherein the fluid pathway includes a non-linear portion;
- wherein each of the proximal connector and the distal connector comprises a luer connector integrally formed with the middle portion, with the distal luer connector extending out distally from the middle portion to form the distal end and the proximal luer connector extending out proximally from the middle portion to form the proximal end;
- and
- wherein the tube and the fluid pathway defined thereby is configured to reduce hemolysis in blood flowing proximally through the adapter to the blood collection device.
8 more elements
A method for collecting a blood sample comprising:
- providing an adapter, comprising:
- a distal end, comprising a distal connector configured to couple to a catheter assembly;
- a proximal end, comprising a proximal connector;
- a middle portion disposed between the distal end and the proximal end and joining the distal connector to the proximal connector, the middle portion being integrally formed with the distal connector and the proximal connector to provide a singular, unitary adapter body, with a lumen extending through the distal end, the middle portion, and the proximal end;
- and
- a tube positioned within the lumen, in the middle portion, the tube defining a fluid pathway disposed between the distal end and the proximal end, wherein the fluid pathway includes a non-linear portion;
- wherein each of the proximal connector and the distal connector comprises a luer connector integrally formed with the middle portion, with the distal luer connector extending out distally from the middle portion to form the distal end and the proximal luer connector extending out proximally from the middle portion to form the proximal end;
- coupling the distal connector to the catheter assembly to place the catheter assembly in fluid communication with the adapter;
- coupling the proximal connector to a blood collection device to place the blood collection device in fluid communication with the adapter;
- and
- collecting a blood sample in the blood collection device, to enable further testing of the blood sample, with the blood sample flowing through the catheter assembly and the adapter and into the blood collection device, with blood flowing through an entirety of the non-linear portion as the blood travels through the adapter.
8 more elements
Dependencies are inferred from the claim text.