PRE-SHAPED MEDICAL DEVICES

1 . A medical device, comprising:

a catheter body defining a proximal segment, a distal segment, and a lumen therethrough, wherein the distal segment includes a pre-shaped segment having a first geometric configuration in an unloaded state, and a second geometric configuration in a loaded state;

wherein in the first geometric configuration, the pre-shaped segment includes an arc of 180 degrees having a radius of at least 1 mm, and wherein a center of the arc is laterally offset from a longitudinal axis of the proximal segment of the catheter body.

2 . The medical device of claim 1 , wherein the pre-shaped segment includes an arc of 180 degrees having a radius of at least 2 mm.

3 . The medical device of claim 1 , wherein the pre-shaped segment transitions from the first geometric configuration to the second geometric configuration under a load between 6 gF and 14 gF.

4 . The medical device of claim 1 , wherein the pre-shaped segment transitions from the first geometric configuration to the second geometric configuration under a load between 9 gF and 11 gF.

5 . The medical device of claim 1 , wherein at least a portion of the distal segment is radiopaque.

6 . The medical device of claim 1 , wherein the distal segment includes an atraumatic distal tip.

7 . A medical device, comprising:

a catheter body defining a proximal segment, a distal segment, and a lumen therethrough, wherein the distal segment includes a pre-shaped segment having a first geometric configuration in an unloaded state, and a second geometric configuration in a loaded state;

wherein in the first geometric configuration, the pre-shaped segment includes an arc of 180 degrees having a radius of at least 2 mm, and wherein a center of the arc is colinear with a longitudinal axis of the proximal segment of the catheter body.

8 . The medical device of claim 7 , wherein the catheter body includes an intermediate segment extending proximally of the distal segment, and wherein the intermediate segment defines a radius of curvature between 20 mm and 30 mm.

9 . The medical device of claim 8 , wherein the intermediate segment has a length between 5 mm and 15 mm.

10 . The medical device of claim 8 , wherein the intermediate segment has an arc length between 30 degrees and 60 degrees.

11 . The medical device of claim 7 , wherein the pre-shaped segment transitions from the first geometric configuration to the second geometric configuration under a load between 6 gF and 14 gF.

12 . A medical device, comprising:

a catheter body defining a proximal segment, a distal segment, and a lumen therethrough, wherein the distal segment includes a pre-shaped segment having a first geometric configuration in an unloaded state, and a second geometric configuration in a loaded state;

wherein in the first geometric configuration, the pre-shaped segment includes an arc of 180 degrees having a radius of at least 2 mm,

wherein a center of the arc is laterally offset from a longitudinal axis of the proximal segment of the catheter body,

wherein the catheter body includes an intermediate segment extending proximally of the distal segment, and

wherein the intermediate segment defines a radius of curvature between 20 mm and 30 mm.

13 . The medical device of claim 12 , wherein the intermediate segment has a length between 10 mm and 20 mm.

14 . The medical device of claim 12 , wherein the intermediate segment has an arc length between 45 degrees and 90 degrees.

15 . The medical device of claim 12 , wherein the pre-shaped segment transitions from the first geometric configuration to the second geometric configuration under a load between 6 gF and 14 gF.

16 - 32 . (canceled)