Transapical introducer

• US 9,883,942 B2
• Filed: 06/16/2014
• Issued: 02/06/2018
• Est. Priority Date: 06/18/2013
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Inventors: Wells, Brian K., Miser, John, Furnish, Gregory R., Eidenschink, Tracee
• Primary Examiner(s): Landry, II, Gerald
• Application Number:
  US14/899,491
• Publication Number:
  US 20160158005A1
• Time in Patent Office: 1,331 Days
• Field of Search: 604158, 60416401, 60416701, 60416703, 60416704, 60416705, 60416706, 604256, 604264, 600139
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/00907 for light
• CPC Class Codes: A61B 2017/3441 with distal sealing means
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation

Abstract

A transapical introducer (100) includes a housing (140) near a proximal end of the introducer, a first valve (160) in the housing, a proximal tube (130) coupled to the housing, and a distal tube (110) coupled to a distal end of the proximal tube.

Claims

1. An introducer comprising:

a housing near a proximal end of the introducer;

a first valve in the housing;

a second valve in the housing;

a flexible proximal tube coupled to the housing; and

a rigid distal tube coupled to a distal end of the proximal tube;

wherein the proximal tube is more flexible than the distal tube and is capable of being clamped to prevent fluid flow therethrough,

wherein the first valve is oriented to allow fluid to flow across the first valve only in a first direction and the second valve is oriented to allow fluid to flow across the second valve only in a second direction, the first direction being opposite the second direction.

2. The introducer of claim 1, wherein the proximal tube is translucent.

3. The introducer of claim 1, wherein the first valve is a duckbill valve.

4. The introducer of claim 3, further comprising a wiper seal in the housing disposed proximally of the first valve.

5. The introducer of claim 1, wherein the second valve is a duckbill valve.

6. The introducer of claim 1, wherein the proximal tube is formed of a material selected from the group consisting of polytetrafluoroethylene, polyfluoroethylene, polyurethane, and polyethylene.

7. The introducer of claim 1, wherein the distal tube is formed of a material selected from the group consisting of stainless steel, carbon reinforced nylon, and composite wound tubing.

8. The introducer of claim 1, wherein the distal tube is formed of a material with a modulus of elasticity greater than about 10 GPa.

9. The introducer of claim 8, wherein the modulus of elasticity of the material forming the distal tube is greater than about 40 GPa.

10. The introducer of claim 9, wherein the modulus of elasticity of the material forming the distal tube is greater than about 100 GPa.

11. The introducer of claim 10, wherein the modulus of elasticity of the material forming the distal tube is greater than about 190 GPa.

12. The introducer of claim 1, wherein the proximal tube is formed of a material with a modulus of elasticity between about 0.35 GPa and about 1.75 GPa.

13. The introducer of claim 12, wherein the modulus of elasticity of the material forming the proximal tube is between about 0.5 GPa and about 1 GPa.