Device for the placing of a partial catheter in a body cavity

• US 5,098,374 A
• Filed: 01/31/1990
• Issued: 03/24/1992
• Est. Priority Date: 09/02/1987
• Status: Expired due to Term

• Current Assignee: Engineers & Doctors A/S
• Original Assignee: Engineers & Doctors A/S
• Inventors: Harboe, Henrik, Othel-Jacobsen, Erik, Neiben, Ole G.
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): Rafa, Michael
• Application Number:
  US07/460,190
• Time in Patent Office: 783 Days
• Field of Search: 604/264-266, 604/280-283, 604/8, 606/108, 606/192, 606/194, 606/195, 606/198, 623/12
• US Class Current: 604/8
• CPC Class Codes: A61F 2/94 Stents retaining their form, i.e. not being deformable, after placement in the predetermined place
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/30199 Three-dimensional shapes
• CPC Class Codes: A61F 2230/0063 Three-dimensional shapes
• CPC Class Codes: A61F 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2310/00017 Iron- or Fe-based alloys, e.g. stainless steel
• CPC Class Codes: A61F 2310/00568 Coating made of gold or Au-based alloys

Abstract

Device consisting of an auxiliary catheter (9), a fastening element (13), and a blocking device (11), designed in such a way that a partial catheter (2) can be mounted and secured at the end of the auxiliary catheter until the partial catheter has been placed in the desired position in a body cavity, especially the urethra, after which the partial catheter can be detached from the auxiliary catheter by manipulation of the blocking device and the fastening element, so that only the partial catheter is left in the desired position in the body cavity.

Claims

1. A device for placing a partial catheter in a body cavity comprising:

a partial catheter having an open end and an attachment member spaced from said open end;

an auxiliary catheter onto which a portion of said partial catheter removable extends;

a fastening element extending through said auxiliary catheter, said fastening element having at one end a means for releasably connecting to said attachment member of said partial catheter;

means for selectively holding said partial catheter in place on said auxiliary catheter; and

means for selectively releasing said partial catheter from said fastening member;

whereby said partial catheter, auxiliary catheter and fastening element can be inserted into the body cavity to position the partial catheter in place and the partial catheter can then be selectively released from said auxiliary catheter and said fastener element and left in said body cavity after the auxiliary catheter and fastening element are removed.

2. A device for placing a partial catheter in a body cavity comprising:

a partial catheter having an open end and an attachment member spaced from said open end;

an auxiliary catheter onto which a portion of said partial catheter removable extends, said auxiliary catheter including at least one elongated slot into which a portion of said partial catheter fits, thereby preventing relative rotation between said partial catheter and said auxiliary catheter; and

a fastening element associated with said auxiliary catheter, said fastening element having at one end a means for releasably connecting to said attachment member of said partial catheter and holding said partial catheter in place on said auxiliary catheter;

means for selectively releasing said partial catheter from said fastening member;

whereby said partial catheter, auxiliary catheter and fastening element can be inserted into the body cavity to position the partial catheter into place and the partial catheter can then be selectively released from said auxiliary catheter and said fastening element and left in said body cavity after the auxiliary catheter and fastening element are removed.

3. The device of claim 2 wherein said auxiliary catheter is made of a plastic material.

4. A device for placing a partial catheter in a body cavity comprising:

a partial catheter having an open end and an attachment member spaced from said open end, said partial catheter including an elongated rod formed between said open end of said partial catheter and said attachment member of said partial catheter;

an auxiliary catheter onto which a portion of said partial catheter removable extends;

a fastening element associated with said auxiliary catheter, said fastening element having at one end a means for releasably connecting to said attachment member of said partial catheter and holding said partial catheter in place on said auxiliary catheter; and

means for selectively releasing said partial catheter from said fastening member;

whereby said partial catheter, auxiliary catheter and fastening element can be inserted into the body cavity to position the partial catheter in place and the partial catheter can then be selectively released from said auxiliary catheter and said fastener element and left in said body cavity after the auxiliary catheter and the fastening element are removed.

5. The device of claim 4 wherein said partial catheter includes a first elongated spiral coil;

said elongated rod being connected at one end to said first spiral coil, and a second spiral coil forming said attachment member, connected to the other end of said elongated rod opposite said first elongated spiral coil.

6. The device of claim 5 wherein said fastening element includes a third spiral coil sized to rotatably interconnect with said second spiral coil of said partial catheter, an elongated middle portion, and a handle portion spaced from said third spiral coil.

7. A device for placing a partial catheter in the urethra of a male comprising:

a partial catheter including a first elongated spiral coil having an open end, an intermediate rod being connected at one end too said first elongated spiral coil, and an attachment member connected to said intermediate rod opposite said first spiral coil;

an auxiliary catheter onto which a portion of said partial catheter removably extends;

a fastening element extending through said auxiliary catheter, said fastening element having at one end means for releasably connecting to said attachment member of said partial catheter;

a plug sized to snugly fit within a portion of said auxiliary catheter and against said fastening element to selectively hold said partial catheter in place on said auxiliary catheter; and

means for selectively releasing said partial catheter from said fastening element;

whereby said partial catheter, auxiliary catheter and fastening element can be inserted into the urethra to position the partial catheter in place and the partial catheter can then be selectively released from said auxiliary catheter and said fastening element and left in said urethra after the auxiliary catheter and fastening element are removed.

8. The device of claim 7 wherein said partial catheter is made of stainless steel with a coating of a bio-compatible material to prevent crystalline growth.

9. The device of claim 8 wherein said bio-compatible material is gold.

10. A device for placing a partial catheter in a body cavity comprising:

a partial catheter having an open end and an attachment member spaced from said open end;

an auxiliary catheter onto which a portion of said partial catheter removable extends;

a fastening element extending through said auxiliary catheter, said fastening element having at one end a means for releasably connecting to said attachment member of said partial catheter;

means for selectively holding said partial catheter in place on said auxiliary catheter, said means including a plug sized to snugly fit within a portion of said auxiliary catheter and against said fastening element to hold said fastening element relative to said auxiliary catheter; and

means for selectively releasing said partial catheter from said fastening member;

whereby said partial catheter, auxiliary catheter and fastening element can be inserted into the body cavity to position the partial catheter in place and the partial catheter can then be selectively released from said auxiliary catheter and said fastening element and left in said body cavity after the auxiliary catheter and fastening element are removed.

11. The device in claim 10 wherein said means for selectively releasing said partial catheter from said fastening member includes a handle secured to an end of said fastening member and extending beyond the end of said auxiliary catheter opposite said partial catheter.

12. The device in claim 11 wherein said auxiliary catheter has a first elongated portion which is cylindrical in shape and a second portion at its end opposite said partial catheter which is conical in shape.

13. The device in claim 12 wherein said plug is sized to snugly fit within the conical end of said auxiliary catheter.

14. The device of claim 13 wherein said partial catheter includes an first elongated spiral coil;

an elongated rod being connected at one end too said first spiral coil, and a second spiral coil forming said attachment member and connected to the other end of said elongated rod opposite said first elongated spiral coil.

15. The device of claim 14 wherein said partial catheter has a first radially extending rod proximate said first elongated spiral coil and a second radially extending rod proximate said second spiral coil and wherein said auxiliary catheter includes a slot into which at least one of said first and second radially extending rods project, thereby preventing the relative rotation of said partial catheter and said auxiliary catheter.

16. The device of claim 15 wherein said auxiliary catheter includes a pair of slots;

each slot having a different length;

said first and second radially extending rods each respectively fitting into one of said slots.