초록

A catheter having a tube and a tip connected to one end of the tube. The tip has a collar, an end member and lowered side walls positioned between the collar and the end member. The lowered side walls define an opening that is biased toward the end member.

대표청구항 ▼

The invention is claimed as follows: 1. A catheter comprising: a tube having a plurality of ends; and a tip positionable within a bodily cavity, the tip having: (a) a collar member that defines an opening, the collar member having: (i) a length; (ii) a first end and a second end, the first end conn

The invention is claimed as follows: 1. A catheter comprising: a tube having a plurality of ends; and a tip positionable within a bodily cavity, the tip having: (a) a collar member that defines an opening, the collar member having: (i) a length; (ii) a first end and a second end, the first end connected to one of the ends of the tube; and (iii) a bottom wall, a top wall and a plurality of side walls positioned between the first and second ends, the side walls connecting the top wall to the bottom wall; (b) an end member having: (i) a length that is less than the length of the collar member; (ii) a first end and a second end; and (iii) a bottom wall, a top wall and a plurality of side walls positioned between said first and second ends, said side walls connecting said top wall to the bottom wall of the end member; and (c) an intermediate section positioned between the collar member and end member, the intermediate section including another bottom wall and a plurality of lowered side walls, said another bottom wall and the lowered side walls being connected to the collar member and the end member, a portion of the lowered side walls and a portion of the top walls of both the collar member and the end member defining another opening having a center, the center of said opening positioned closer to the first end of the end member than the second end of the collar member. 2. The catheter of claim 1, wherein the second end of the end member has a partially rounded shape. 3. The catheter of claim 1, wherein the opening positioned between the second end of the collar member and the first end of the end member has an elongated shape. 4. The catheter of claim 1, wherein a portion of the bottom wall of the intermediate section has a sloped interior surface. 5. The catheter of claim 1, wherein a portion of the bottom wall of the intermediate section has an arc-shaped interior surface. 6. The catheter of claim 5, wherein: (a) the opening of the first end of the collar member has an inner diameter; and (b) said arc-shaped interior surface is defined by a radius, the radius having a magnitude within a range between and including five times and ten times said inner diameter. 7. The catheter of claim 1, wherein: (a) the opening of the first end of the collar member has an inner diameter; and (b) each of the lowered side walls of the intermediate section has a height that is selected from the group consisting of: (i) a height substantially equal to one-half of said inner diameter; (ii) a height equal to one-half of said inner diameter; and (iii) a height having a magnitude within a range between and including one-half of said inner diameter and said inner diameter. 8. The catheter of claim 1, wherein: (a) the tube has an inner diameter; and (b) each of the lowered side walls of the intermediate section has a height that is selected from the group consisting of: (i) a height substantially equal to one-half of said inner diameter; (ii) a height equal to one-half of said inner diameter; and (iii) a height having a magnitude within a range between and including one-half of said inner diameter and said inner diameter. 9. The catheter of claim 1, wherein the second end of the end member defines an opening sized to receive a wire. 10. A catheter comprising: a tube having a plurality of ends; and a tip having: (a) a collar member that defines an opening, the collar member having: (i) a length; (ii) a first end and a second end, the first end connected to one of the ends of the tube; and (iii) a bottom wall, a top wall and a plurality of side walls positioned between the first and second ends, the side walls connecting the top wall to the bottom wall; (b) an end member having: (i) a length that is less than the length of the collar member; (ii) a first end and a second end; and (iii) a bottom wall, a top wall and a plurality of side walls positioned between said first and second ends, said side walls connecting said top wall to the bottom wall of the end member; and (c) an intermediate section positioned between the collar member and the end member, the intermediate section including another bottom wall and a plurality of lowered side walls, said another bottom wall and the lowered side walls being connected to the collar member and the end member, a portion of the lowered side walls and a portion of the top walls of both the collar and the end member defining another opening having a center, the center of said opening being positioned closer to the first end of the end member than the second end of the collar member. 11. The catheter of claim 10, wherein the second end of the end member has a partially rounded shape. 12. The catheter of claim 10, wherein the opening positioned within the intermediate section has an elongated shape. 13. The catheter of claim 10, wherein a portion of the bottom wall of the intermediate section has a sloped interior surface. 14. The catheter of claim 10, wherein a portion of the bottom wall of the intermediate section has an arc-shaped interior surface. 15. The catheter of claim 14, wherein: (a) the opening of the first end of the collar member has an inner diameter; and (b) said arc-shaped interior surface is defined by a radius, the radius having a magnitude within a range between and including five times and ten times said inner diameter. 16. The catheter of claim 10, wherein: (a) the opening of the first end of the collar member has an inner diameter; and (b) each of the lowered side walls of the intermediate section has a height that is selected from the group consisting of: (i) a height substantially equal to one-half of said inner diameter; (ii) a height equal to one-half of said inner diameter; and (iii) a height having a magnitude within a range between and including one-half of said inner diameter and said inner diameter. 17. The catheter of claim 10, wherein: (a) the tube has an inner diameter; and (b) each of the lowered side walls of the intermediate section has a height that is selected from the group consisting of: (i) a height substantially equal to one-half of said inner diameter; (ii) a height equal to one-half of said inner diameter; and (iii) a height having a magnitude within a range between and including one-half of said inner diameter and said inner diameter. 18. The catheter of claim 10, wherein the second end of the end member defines an opening sized to receive a wire. 19. A catheter comprising: a tube having a plurality of ends; and a tip positionable within a bodily cavity, the tip having: (a) a collar member that defines an opening, the collar member having: (i) a length; (ii) a first end and a second end, the first end connected to one of the ends of the tube; and (iii) a bottom wall, a top wall and a plurality of side walls positioned between the first and second ends, the side walls connecting the top wall to the bottom wall; (b) an end member having: (i) a length that is less than the length of the collar member; (ii) a first end and a second end, the second end having a partially rounded shape; and (iii) a bottom wall, a top wall and a plurality of side walls positioned between said first and second ends, said side walls connecting said top wall to the bottom wall of the end member; and (c) an intermediate section positioned between the collar member and end member, the intermediate section including another bottom wall and a plurality of lowered side walls, said another bottom wall and the lowered side walls being connected to the collar member and the end member, a portion of the lowered side walls and a portion of the top walls of both the collar member and the end member defining another opening, said opening having a center and an elongated shape, the center of said opening being positioned closer to the first end of the end member than the second end of the collar member. 20. The catheter of claim 19, wherein a portion of the bottom wall of the intermediate section has an arc-shaped interior surface. 21. The catheter of claim 20, wherein: (a) the opening of the first end of the collar member has an inner diameter; and (b) said arc-shaped interior surface is defined by a radius, the radius having a magnitude within a range between and including five times and ten times said inner diameter. 22. The catheter of claim 19, wherein: (a) the opening of the first end of the collar member has an inner diameter; and (b) each of the lowered side walls of the intermediate section has a height that is selected from the group consisting of: (i) a height substantially equal to one-half of said inner diameter; (ii) a height equal to one-half of said inner diameter; and (iii) a height having a magnitude within a range between and including one-half of said inner diameter and said inner diameter. 23. The catheter of claim 19, wherein: (a) the tube has a designated inner diameter; and (b) each of the lowered side walls of the intermediate section has a height that is selected from the group consisting of: (i) a height substantially equal to one-half of said inner diameter; (ii) a height equal to one-half of said inner diameter; and (iii) a height having a magnitude within a range between and including one-half of said inner diameter and said inner diameter. 24. The catheter of claim 19, wherein the second end of the end member defines an opening sized to receive a wire.