Introducer sheath
An introducer sheath is disclosed capable of reducing a physical burden on a patient by shortening a time necessary for hemostasis at an introduction part after removing the introducer sheath percutaneously introduced into a body lumen. The introducer sheath includes a catheter main body, which is percutaneously introduced into a body lumen, a hub, which is connected to a proximal side of the catheter main body, and a tube member which includes a thrombus inducing material M. The tube member is disposed at a proximal side of an outer surface of the catheter main body.
1. An introducer sheath comprising:
a catheter main body configured to be percutaneously introduced into a body lumen;
a hub configured to be connected to a proximal side of the catheter main body;
a cylindrical tube member that includes a thrombus inducing material, and wherein the tube member is disposed at a proximal side of an outer surface of the catheter main body, the tube member including a main body portion and a medicine portion, the medicine portion being disposed on an outer surface of the main body portion and includes the thrombus inducing material, the main body portion includes a proximal area and a distal area, the distal area being inclined toward the outer surface of the catheter main body and the proximal area being positioned proximally to the distal area; and
wherein an outer diameter of a proximal end of the distal area of the main body portion is larger than an outer diameter of the proximal area of the main body portion.
2. The introducer sheath according to claim 1 ,
wherein a thickness of the tube member is smaller than a thickness of the catheter main body; and
wherein a material of the tube member is harder than a material of the catheter main body.
3. The introducer sheath according to claim 1 ,
wherein a distal area of the tube member is inclined toward the outer surface of the catheter main body.
4. The introducer sheath according to claim 1 ,
wherein a color of the tube member is different from a color of the catheter main body.
5. The introducer sheath according to claim 1 ,
wherein the medicine portion is disposed on an outer surface of the proximal area.
6. The introducer sheath according to claim 1 ,
wherein a hydrophilic lubrication layer which exhibits surface lubricity in a wet state is partially disposed on the outer surface of the catheter main body; and
wherein the tube member is disposed in an area of the catheter main body without the hydrophilic lubrication layer.
7. The introducer sheath according to claim 1 , wherein a proximal portion of the main body portion of the tube member extends to a proximal portion of the catheter main body.
8. The introducer sheath according to claim 7 , wherein the hub includes an interlock portion, and the proximal portion of the main body portion of the tube member is fixed to the interlock portion of the hub, or the proximal portion of the main body portion of the tube member and the proximal portion of the catheter main body are fixed to the interlock portion of the hub.
9. The introducer sheath according to claim 1 , wherein a proximal portion of the main body portion of the tube member contacts a distal portion of the hub.
10. The introducer sheath according to claim 1 , wherein the medicine portion is disposed around an entire circumference of the outer surface of the main body portion of the tube member.
11. The introducer sheath according to claim 1 , wherein the thrombus inducing material is a collagen or high molecular weight vWF factor.
12. An introducer sheath comprising:
a catheter main body configured to be percutaneously introduced into a body lumen;
a hub configured to be connected to a proximal side of the catheter main body;
a cylindrical tube member that includes a thrombus inducing material, and wherein the tube member is disposed at a proximal side of an outer surface of the catheter main body, the tube member including a main body portion and a medicine portion, the medicine portion being disposed on an outer surface of the main body portion and includes the thrombus inducing material;
wherein a hydrophilic lubrication layer which exhibits surface lubricity in a wet state is disposed on the outer surface of the catheter main body; and
wherein the hydrophilic lubrication layer covers at least a distal area of the tube member.
13. The introducer sheath according to claim 12 , wherein the main body portion includes a proximal area and a distal area, the distal area being inclined toward the outer surface of the catheter main body and the proximal area being positioned proximally to the distal area.
14. The introducer sheath according to claim 13 , wherein an outer diameter of a proximal end of the distal area of the main body portion is larger than an outer diameter of the proximal area of the main body portion.
15. The introducer sheath according to claim 12 , wherein the medicine portion is disposed on an outer surface of a proximal area of the main body portion.
16. The introducer sheath according to claim 12 ,
wherein a thickness of the tube member is smaller than a thickness of the catheter main body; and
wherein a material of the tube member is harder than a material of the catheter main body.
17. The introducer sheath according to claim 12 ,
wherein a distal area of the tube member is inclined toward the outer surface of the catheter main body.
18. The introducer sheath according to claim 12 ,
wherein a color of the tube member is different from a color of the catheter main body.
19. The introducer sheath according to claim 12 , wherein a proximal portion of the main body portion of the tube member extends to a proximal portion of the catheter main body; and
wherein the hub includes an interlock portion, and the proximal portion of the main body portion of the tube member is fixed to the interlock portion of the hub, or the proximal portion of the main body portion of the tube member and the proximal portion of the catheter main body are fixed to the interlock portion of the hub.
20. An introducer sheath comprising:
a catheter main body configured to be percutaneously introduced into a body lumen;
a hub configured to be connected to a proximal side of the catheter main body;
a cylindrical tube member that includes a thrombus inducing material, and wherein the tube member is disposed at a proximal side of an outer surface of the catheter main body, the tube member including a main body portion and a medicine portion, the medicine portion being disposed on an outer surface of the main body portion and includes the thrombus inducing material; and
wherein the catheter main body is made of polyethylene or polypropylene, and the tube member is made of polycarbonate and polyether ether ketone (PEEK).