Hemostatic valve for medical device introducer

Patent metadata

Field	Value
Publication number	US-10576258-B2
Application number	US-201615245982-A
Country	US
Kind code	B2
Filing date	Aug 24, 2016
Priority date	Aug 24, 2015
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

An introducer for insertion of a medical device into a patient's vasculature includes an elongate introducer body, a hub, and a hemostatic valve. The elongate introducer body includes a longitudinal axis, a proximal region, a distal region, and an inner lumen. The hub is coupled to the proximal region of the introducer body. The hemostatic valve is disposed within the hub and forms a liquid-tight seal across the inner lumen. The introducer includes a guide configured to guide an object towards the center of the valve during insertion of the object.

First claim

We claim:

1. An introducer for insertion of a medical device into a patient's vasculature, the introducer comprising:
an elongate introducer body having a longitudinal axis, a proximal region, a distal region, and an inner lumen;
a hub coupled to the proximal region of the introducer body;
a hemostatic valve disposed within the hub and forming a liquid-tight seal across the inner lumen, wherein:
the hub and the hemostatic valve are configured to part together,
wherein the hemostatic valve includes a distal surface and a proximal surface having a sloped region configured to guide an object towards a center of the hemostatic valve during insertion of the object,
and the proximal surface comprises a flat central region that is substantially perpendicular to the longitudinal axis of the elongate introducer body.

2. The introducer of claim 1 , wherein the sloped region is a funnel.

3. The introducer of claim 1 , wherein the sloped region is angled about 30° or greater relative to the plane perpendicular to the longitudinal axis of the introducer body.

4. The introducer of claim 1 , wherein the sloped region is angled about 45° or greater relative to the plane perpendicular to the longitudinal axis of the introducer body.

5. The introducer of claim 1 , wherein the sloped region is angled about 60° or greater relative to the plane perpendicular to the longitudinal axis of the introducer body.

6. The introducer of claim 1 , wherein the flat central region has a diameter of about 3 mm or less.

7. The introducer of claim 2 , wherein the funnel is separate from the hemostatic valve.

8. The introducer of claim 1 , wherein the introducer is configured to part along a parting surface substantially parallel to the longitudinal axis of the introducer body.

9. The introducer of claim 1 , wherein the hemostatic valve is configured to part along a parting surface substantially parallel to the longitudinal axis of the introducer body.

10. The introducer of claim 1 , wherein the hemostatic valve includes a central void that reduces the stiffness of the center of the hemostatic valve.

11. The introducer of claim 1 , wherein the hemostatic valve is configured with a base portion having a first outer diameter, and an upper portion having a second outer diameter, wherein the first outer diameter is greater than an inner diameter of the hub, and the second outer diameter is smaller than the first outer diameter.

12. An introducer for insertion of a medical device into a patient's vasculature, the introducer comprising:
an elongate introducer body having a longitudinal axis, a proximal region, a distal region, and an inner lumen;
a hub coupled to the proximal region of the introducer body;
a hemostatic valve disposed within the hub and forming a liquid-tight seal across the inner lumen, wherein:
the introducer and the hemostatic valve are configured to part together;
the hemostatic valve includes a distal surface and a proximal surface having a sloped region configured to direct an object towards a center of the hemostatic valve during insertion of the object through the hemostatic valve, and
the proximal surface comprises a flat central region that is substantially perpendicular to the longitudinal axis of the elongate introducer body.

13. The introducer of claim 12 , wherein the sloped region is formed on the hub.

14. The introducer of claim 13 , wherein the sloped region is a funnel.

15. The introducer of claim 14 , wherein the sloped region extends circumferentially around the hemostatic valve.

16. The introducer of claim 14 , wherein the sloped region is angled about 30° or greater relative to the plane perpendicular to the longitudinal axis of the introducer body.

Assignees

• Abiomed Inc

Inventors

• Fantuzzi Glen R
• Mraz Dion

Classifications

• A61M25/0668

  splittable, tear apart · CPC title

• A61M39/0606

  without means for adjusting the seal opening or pressure (A61M39/0693 takes precedence) · CPC title

• A61M2039/066

  Septum-like element · CPC title

• A61M2039/0626

  used with other surgical instruments, e.g. endoscope, trocar · CPC title

• A61M25/0662 Primary

  Guide tubes · CPC title