Device for introducing fibrin adhesive into a puncture channel

• US 6,500,152 B1
• Filed: 12/28/2000
• Issued: 12/31/2002
• Est. Priority Date: 07/02/1998
• Status: Expired due to Term

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: White Spot AG
• Inventors: Illi, Oscar E.
• Primary Examiner(s): Nguyen, Anhtuan T.
• Assistant Examiner(s): Thompson, Michael M
• Application Number:
  US09/720,694
• Time in Patent Office: 733 Days
• Field of Search: 604/15, 604/39-43, 604/506, 604/507, 604/508, 604/510, 604/60, 604/96.01, 604/168.01, 604/171, 604/523, 604/529, 604/533, 604/286, 604/285, 604/164.07, 606/108, 606/213, 606/215, 606/216
• US Class Current: 604/164.07
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00495 for two-component glue
• CPC Class Codes: A61B 2017/00637 for sealing trocar wounds through abdominal wall
• CPC Class Codes: A61B 2017/0065 the implement being an adhesive
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61B 2090/0807 Indication means

Abstract

According to the invention a working cannula (1) is fixedly joined to a medical coupling element (3) which is placed onto a sealing cannula (2) and can be screwed onto same. The medical coupling element (3) has an actuating lever (34) and a covering plate (39). When the medical coupling element (3) is rotated by means of the actuating lever (34) in relation to the sealing cannula (2), the working cannula (1) is partially pulled into the sealing cannula (2) to such a depth that inlet openings (11) in the proximal end of the working cannula (1) are drawn into a sealing chamber (14) at the proximal end of the sealing cannula (2). This ensures that the outlet openings (6) through which, for example, fibrin adhesive can be administered into the puncture channel, do not enter an artery. In the insertion position the covering plate (39) simultaneously covers the sealing tube (5) through which the sealing material is injected.

Claims

1. In a device for introducing a two-component fibrin adhesive into a puncture channel into a vicinity of an arterial or venal puncture location, the device having a sealing cannula (2) passed through axially from above to below by a working cannula (1) which provides an intravascular introduction of an instrumentation into a vessel, the working cannula (1) surrounded by the sealing cannula (2) at a distance so that the fibrin adhesive passes from a connection piece (5) to at least one radially directed exit opening (6) in the sealing cannula (2) between the sealing cannula (2) and the working cannula (1), the sealing cannula (2) at a distal end laterally formed as one piece with one of a sleeve and a wall thickening (4), the improvement comprising:

the sleeve (4) at a distal region having an outer thread (20) on which a medical coupling piece (3) with an inner thread is threadedly attached, the medical coupling piece (3) having a distal introduction opening (30) and rigidly connected flush to the working cannula (2) which at a proximal end has inlet openings (11) which by a relative movement of the medical coupling piece (3) to the sleeve (4) into a closure position are movable into the sealing cannula (2), wherein on the medical coupling piece (3) there is attached a cover plate (39) in a distanced manner so that the cover plate (39) covers the connection piece (5) when the inlet openings (11) are in an opening position and frees the connection piece (5) when the inlet openings (11) are in the closure position.

2. In the device according to claim 1, wherein the medical coupling piece (3) comprises a lateral control connection piece (31).

3. In the device according to claim 2, wherein on the control connection piece (31) is arranged a Luer-lock coupling (32).

4. In the device according to claim 1, wherein the medical coupling piece (3) has an inner thread (33) which meshes with an outer thread (20) on the connection piece (5) so that by rotating the medical coupling piece (3) with respect to the sleeve (4) the inlet openings (11) are movable into the closure position within the sealing cannula (2) and into the opening position outside of the sealing cannula (2).

5. In the device according to claim 1, wherein on the medical coupling piece (3) is formed an actuation lever (34).

6. In the device according to claim 1, wherein at an end of the medical coupling piece (3) a lead-through seal (35) is held with a fixation (36).

7. In the device according to claim 6, wherein the lead-through seal (35) is a haemostasis valve.

8. In the device according to claim 1, wherein the distal end of the sealing cannula (2) has two radially and inwardly directed annular sealing lips (12, 13) distanced from one another at least by a diameter of the inlet openings (11) and which sealingly bear on the working cannula (1) and which form an annular sealing chamber (14).

9. In the device according to claim 1, wherein in the sealing chamber (14) there is arranged one of a radiologically and sonologically recognizable ring (15).