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1. (WO2018129546) DISPOSITIF D’EXTRACTION
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

What is claimed is:

1. An endoscopic device for retrieving an object from within a human body, the device comprising:

a transmitting assembly comprising: a handle; and a link having a first end attached to the handle and a second end,

a wire defining a loop portion and at least one leg portion, wherein each leg portion is disposed proximal from the loop portion and a proximal end of each leg portion is secured to the second end of the link,

a net element having a loop section secured to the loop portion,

wherein the loop portion is movable between an expanded position and a collapsed position by action of the handle relative to the base,

wherein the widest portion of the loop portion is more proximal to a proximal end of the loop portion than the mid-point of the length of the loop portion is.

2. The endoscopic device of claim 1 , wherein a distance from the mid-point of the length of the loop to the widest portion of the loop is about 3%-45% of the length.

3. The endoscopic device of claim 2, wherein the distance from the mid-point of the length of the loop to the widest portion of the loop is about 10%-35% of the length.

4. The endoscopic device of claim 3, wherein the distance from the mid-point of the length of the loop to the widest portion of the loop is about 12%-25% of the length.

5. The endoscopic device of claim 1, wherein the net element further comprises a tail section secured to the link.

6. The endoscopic device of claim 5, wherein the tail section is secured to the link by a tether.

7. The endoscopic device of claim 5, wherein the tail section is glued to the link.

8. The endoscopic device of claim 5, wherein the tail section has a width of 10-25 mm.

9. The endoscopic device of claim 5, wherein the loop passes through the net element, loops over the edges of the net element, and passes through the net element again from the same face.

10. The endoscopic device of claim 5 further comprising a plurality of the following patterns: the loop passing through the net element, looping over the edges of the net element, and passing through the net element again from the same face.

11. The endoscopic device of claim 5, wherein at least one leg of the loop passes through the tail section at a position between about 1 mm to 6 mm from a corner defined between the tail section and the loop section of the net element.

12. The endoscopic device of claim 11, wherein both legs of the loop pass through the tail section at a position between about 1 mm to 6 mm from the corner.

13. The endoscopic device of claim 11, wherein at least one leg of the loop passes through the tail section at a position between about 2 mm to 5 mm from the corner.

14. The endoscopic device of claim 13, wherein both legs of the loop pass through the tail section at a position between about 2 mm to 5 mm from the corner.

15. The endoscopic device of claim 5, wherein at least one leg of the loop passes through the tail section at a position at least about 4 mm from a corner defined between the tail section and the loop section of the net element.

16. The endoscopic device of claim 15, wherein both legs of the loop pass through the tail section at a position at least 2 mm from the corner.

17. The endoscopic device of claim 1, wherein at least one net element comprises combinations of different net geometries and/or different net materials.

18. The endoscopic device of claim 1, wherein the loop is configured to flex towards only one side.

19. The endoscopic device of claim 1, wherein the loop or the net is colored or coded or positionally identified.

20. The endoscopic device of claim 1, further comprising: a support assembly comprising a base and an elongated tubular member, wherein the handle is movable relative to the base, and the link extends through at least a portion of the tubular member.

21. The endoscopic device of claim 20, wherein a distal opening of the tubular member is enlarged or flared.

22. The endoscopic device of claim 20, wherein an inside surface of the distal portion of the tubular member is smooth and atraumatic.

23. The endoscopic device of claim 20, wherein an outside surface of the distal portion of the tubular member is smooth and atraumatic.

24. The endoscopic device of claim 1 further comprising: at least one arm attached to a proximal portion of the loop portion; wherein a proximal end of the arm is attached to the handle, wherein the arm is configured to be articulated in a manner to widen or narrow the loop.