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EP-4734845-A1 - PORTED CATHETERS CONFIGURED TO FACILITATE INSERTION OF BLOOD DRAW DEVICE

EP4734845A1EP 4734845 A1EP4734845 A1EP 4734845A1EP-4734845-A1

Abstract

Ported catheters can be configured to facilitate insertion of a blood draw device or other vascular probe or instrument. A ported catheter may include a bushing, or wedge, that is shaped to provide a smooth entry and advancement of a tube of a blood draw device that is coupled to the ported catheter, whether via a proximal opening or a port of the ported catheter. Such a bushing may be particularly beneficial when the port of the ported catheter is oriented at an angle towards the catheter. By incorporating such a bushing, a ported catheter may be better able to minimize the occurrence of kinking or bending of the tube of the blood draw device. A ported catheter may also include a catheter strain relief feature to minimize the occurrence of kinking or bending of the tube of the blood draw device while it is extended through the catheter.

Inventors

  • GOVINDARAJ, Prasad
  • GOMATHINAYAGAM, Meenakshi Sankar
  • NANDAKUMAR, Sridhaar
  • BURKHOLZ, JONATHAN KARL
  • HARDING, WESTON F.
  • ISAACSON, S. RAY
  • Blanchard, Curtis H.

Assignees

  • Becton, Dickinson and Company

Dates

Publication Date
20260506
Application Date
20240530

Claims (20)

  1. 1. A ported catheter comprising: a catheter adapter having a proximal opening; a catheter extending distally from the catheter adapter; a port; and a bushing having an inside surface that is configured to facilitate insertion of a tube of a blood draw device or other vascular probe or instrument into the catheter.
  2. 2. The ported catheter of claim 1, wherein the inside surface of the bushing includes a curved section.
  3. 3. The ported catheter of claim 2, wherein the curved section has a concave cross- sectional shape.
  4. 4. The ported catheter of claim 2, wherein the inside surface of the bushing also includes a proximal section positioned at a proximal opening of the bushing, the curved section extending distally from the proximal section.
  5. 5. The ported catheter of claim 4, wherein the inside surface of the bushing also includes a sloped section that extends proximally from the curved section.
  6. 6. The ported catheter of claim 5, wherein the port is angled towards the bushing.
  7. 7. The ported catheter of claim 1, wherein the inside surface of the bushing includes a sloped section that extends between a distal end of the bushing and a proximal opening of the bushing.
  8. 8. The ported catheter of claim 7, wherein the sloped section intersects with an outer surface of the bushing at the proximal opening.
  9. 9. The ported catheter of claim 1, wherein the inside surface of the bushing includes a curved section that extends between a distal end of the bushing and a proximal opening of the bushing, the curved section having a convex cross-sectional shape.
  10. 10. The ported catheter of claim 1, wherein the inside surface includes a proximal section positioned at a proximal opening of the bushing and a sloped section that extends between the proximal section and a distal end of the bushing.
  11. 11. The ported catheter of claim 10, wherein a proximal end of the proximal section is curved.
  12. 12. The ported catheter of claim 1, wherein the inside surface includes a proximal section positioned at a proximal opening of the bushing, a rounded section within the proximal section, a curved section that extends distally from the proximal section, and a sloped section that extends between the curved section and a distal end of the bushing.
  13. 13. The ported catheter of claim 1, wherein the bushing is formed of plastic, metal, or rubber.
  14. 14. The ported catheter of claim 1, further comprising: a catheter strain relief feature formed around the catheter distal to the catheter adapter.
  15. 15. A bushing for a ported catheter comprising: a distal end that is configured to secure a catheter within a catheter adapter of the ported catheter; a proximal opening; and an inside surface that is configured to facilitate insertion of a tube of a blood draw device or other vascular probe or instrument into the catheter.
  16. 16. The bushing of claim 15, wherein the inside surface includes a curved section.
  17. 17. The bushing of claim 16, wherein the inside surface also includes a sloped section and a proximal section, and wherein the curved section is positioned between the sloped section and the proximal section.
  18. 18. The bushing of claim 16, wherein the curved section extends between the proximal opening and the distal end.
  19. 19. The bushing of claim 16, wherein the inside surface includes a slanted section.
  20. 20. A system for collecting a blood sample comprising: a ported catheter; and a blood draw device having a tube that is configured to extend through the ported catheter; wherein the ported catheter includes a bushing having an inside surface that is configuredtate inserting the tube through the ported catheter.

Description

PORTED CATHETERS CONFIGURED TO FACILITATE INSERTION OF BLOOD DRAW DEVICE BACKGROUND [0001] A ported catheter is a peripheral intravenous catheter (PIVC) having a port that is formed into the catheter adapter. Figure 1 provides an example of a ported catheter 10. Ported catheter 10 includes a catheter adapter 11 having a proximal opening 12 and a support platform 15. A catheter 13 extends distally from catheter adapter 11. A port 14 extends upwardly from catheter adapter 11 and provides an access point, separate from proximal opening 12, into catheter 13. In Figure 1, port 14 is oriented at a right angle relative to the longitudinal axis of catheter adapter 11. In other cases, a port could be oriented at an angle towards catheter 13. Although not shown, a ported catheter, such as ported catheter 10, may typically be initially integrated with a needle assembly for inserting the catheter into the patient’s vasculature. [0002] Figure 2A provides an example of a blood draw device 20 that could be used with a PIVC including with a ported catheter. Blood draw device 20 includes a main body 21 having a distal tip 22 that is configured to insert into a catheter adapter of a PIVC (e.g., via a port, adapter or other opening) and a securing mechanism 25 that can couple main body 21 to the catheter adapter. A tube 23 extends through main body 21 and may be selectively advanced out through distal tip 22 via a slider 26. An adapter 24 can be connected to a proximal end of tube 23 and provides a means for connecting a blood draw set (e.g., a vacuum tube adapter) to tube 23. [0003] Figure 2B provides an example of how blood draw device 20 can be used with a PIVC 30. Distal tip 22 can be inserted into a proximal opening 32 of PIVC 30 until securing mechanism 25 is secured around proximal opening 32. Then, slider 26 can be advanced distally to cause tube 23 to pass through catheter adapter 31 and out through catheter 33 so that tube 23 can be positioned at a point within the vasculature where blood can be more effectively drawn. Because tube 23 is flexible, it can be difficult to advance tube 23 through catheter adapter 31 and into catheter 33. Once tube 23 is positioned appropriately, a syringe 40 or other mechanism can be used to draw blood through tube 23. [0004] The subject matter claimed herein is not limited to embodiments that solve any disadvantages or that operate only in environments such as those described above. Rather, this background is only provided to illustrate one example technology area where some implementations described herein may be practiced. SUMMARY [0005] The present disclosure relates generally to ported catheters and more particularly to ported catheters that are configured to facilitate insertion of a blood draw device or other vascular probe or instrument. A ported catheter may include a bushing, or wedge, that is shaped to provide a smooth entry and advancement of a tube of a blood draw device that is coupled to the ported catheter, whether via a proximal opening or a port of the ported catheter. Such a bushing may be particularly beneficial when the port of the ported catheter is oriented at an angle towards the catheter. By incorporating such a bushing, a ported catheter may be better able to minimize the occurrence of kinking or bending of the tube of the blood draw device. A ported catheter may also include a catheter strain relief feature to minimize the occurrence of kinking or bending of the tube of the blood draw device while it is extended through the catheter. [0006] In some embodiments of the present disclosure, a ported catheter may include a catheter adapter having a proximal opening, a catheter extending distally from the catheter adapter, a port, and a bushing having an inside surface that is configured to facilitate insertion of a tube of a blood draw device or other vascular probe or instrument into the catheter. [0007] In some embodiments, the inside surface of the bushing may include a curved section. [0008] In some embodiments, the curved section may have a concave cross-sectional shape. [0009] In some embodiments, the inside surface of the bushing may include a proximal section positioned at a proximal opening of the bushing. The curved section may extend distally from the proximal section. [0010] In some embodiments, the inside surface of the bushing may include a sloped section that extends proximally from the curved section. [0011] In some embodiments, the port may be angled towards the bushing. [0012] In some embodiments, the inside surface of the bushing may include a sloped section that extends between a distal end of the bushing and a proximal opening of the bushing. [0013] In some embodiments, the sloped section may intersect with an outer surface of the bushing at the proximal opening. [0014] In some embodiments, the inside surface of the bushing may include a curved section that extends between a distal end of the bushing and a proximal opening of the bushing.