Introducer components, assemblies, and methods thereof

Patent metadata

Field	Value
Publication number	US-12594403-B2
Application number	US-202217894759-A
Country	US
Kind code	B2
Filing date	Aug 24, 2022
Priority date	Aug 24, 2021
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

Disclosed are introducer components, assemblies, and methods. For example, an introducer assembly can include an access guidewire loaded in a needle assembly fluidly connected to a syringe. The needle assembly can include a needle and a valve thereover. The needle can include a needle shaft including a needle lumen, a needle slot in a proximal portion of the needle shaft, and a needle hub over the proximal portion of the needle shaft but proximal of the needle slot. The valve can be over the needle slot with a valve port aligned with the needle slot. The access guidewire can be loaded in the needle lumen and sealed therein by way of the valve port in a ready-to-deploy state of the introducer assembly. In this way, the access guidewire can be immediately advanced into a blood-vessel lumen of a patient upon establishing a needle tract thereto with the needle assembly.

First claim

What is claimed is:

1 . An introducer assembly, comprising:
a vacuum-generating device; a needle assembly fluidly connected to the vacuum-generating device, the needle assembly including:
a needle including:
a needle shaft including a needle lumen;
a needle slot in a proximal portion of the needle shaft; and
a needle hub over the proximal portion of the needle shaft but proximal of the needle slot; and

a valve over the needle slot, the valve including an elastomeric sleeve having a valve port aligned with the needle slot; and
an access guidewire loaded in the needle lumen and sealed therein around an outer diameter of the access guidewire by way of the valve port in a ready-to-deploy state of the introducer assembly,
wherein the access guidewire includes a ‘J’-shaped guidewire tip that assumes a straightened state in the ready-to-deploy state of the introducer assembly and a curved state when the guidewire tip is advanced beyond a distal end of the needle shaft in a deployed state of the introducer assembly.

2 . The introducer assembly of claim 1 , wherein the elastomeric sleeve is adhered to the needle shaft over the needle slot.

3 . The introducer assembly of claim 1 , wherein the valve port includes a hole in the elastomeric sleeve aligned with the needle slot, the hole having an inner diameter smaller than the outer diameter of the access guidewire.

4 . The introducer assembly of claim 1 , wherein the valve port includes a slit in the elastomeric sleeve aligned with the needle slot.

5 . The introducer assembly of claim 1 , wherein the valve port includes a plurality of intersecting slits in the elastomeric sleeve aligned with the needle slot.

6 . The introducer assembly of claim 1 , wherein the valve further includes a rigid housing over the elastomeric sleeve.

7 . The introducer assembly of claim 6 , wherein the valve port further includes a through hole in the rigid housing aligned with the needle slot.

8 . The introducer assembly of claim 7 , wherein the valve port further includes an ‘O’-ring disposed in the through hole having an inner diameter smaller than the outer diameter of the access guidewire.

9 . The introducer assembly of claim 1 , wherein the access guidewire includes a bare-wire portion and a wound-wire portion proximal of the bare-wire portion, the bare-wire portion distally extending through the valve port in at least the ready-to-deploy state of the introducer assembly.

10 . The introducer assembly of claim 1 , wherein the access guidewire includes a proximal portion proximally extending from the valve port in the ready-to-deploy state of the introducer assembly, the proximal portion of the access guidewire disposed in a sterile barrier configured to maintain sterility of the access guidewire.

11 . The introducer assembly of claim 1 , wherein the needle hub further includes a needle-hub connector including a needle-hub bore in a proximal portion of the needle hub, a syringe tip of a syringe as the vacuum-generating device disposed in the needle-hub bore, thereby fluidly connecting the needle assembly to the vacuum-generating device in the ready-to- deploy state of the introducer assembly.

12 . A needle assembly, comprising:
a needle including:
a needle shaft including a needle lumen;
a needle slot in a proximal portion of the needle shaft; and
a needle hub over the proximal portion of the needle shaft but proximal of the needle slot; and
a valve including: an elastomeric sleeve over the needle slot, the valve including a valve port aligned with the needle slot; and a rigid housing over the elastomeric sleeve.

13 . The needle assembly of claim 12 , wherein the elastomeric sleeve is adhered to the needle shaft over the needle slot.

14 . The needle assembly of claim 12 , wherein the valve port includes a slit in the elastomeric sleeve aligned with the needle slot.

15 . The needle assembly of claim 12 , wherein the valve port includes a plurality of intersecting slits in the elastomeric sleeve aligned with the needle slot.

16 . The needle assembly of claim 12 , wherein the valve port further includes a through hole in the rigid housing aligned with the needle slot.

17 . The needle assembly of claim 12 , wherein the needle hub further includes a needle-hub connector including a needle-hub bore in a proximal portion of the needle hub, the needle-hub bore configured to accept a syringe tip of a syringe inserted therein for fluidly connecting the needle assembly to the syringe.

Assignees

• Bard Access Systems Inc

Inventors

• Howell Glade H

Classifications

• A61M25/0693

  Flashback chambers · CPC title

• A61M25/0097

  characterised by the hub (connectors A61M39/10) · CPC title

• A61M5/3291

  Shafts with additional lateral openings · CPC title

• A61M5/3293

  characterised by features of the needle hub · CPC title

• A61M25/06

  Body-piercing guide needles or the like · CPC title