Catheterization set

• US 5,858,002 A
• Filed: 01/29/1996
• Issued: 01/12/1999
• Est. Priority Date: 11/24/1992
• Status: Expired due to Fees

• Current Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Inventors: Jesch, Franz
• Primary Examiner(s): Rimell, Sam
• Assistant Examiner(s): Racunas, Robert V.
• Application Number:
  US08/593,377
• Time in Patent Office: 1,079 Days
• Field of Search: 604/158, 604/164, 604/167, 604/168, 604/51-53, 604/93, 604/177, 604/264, 604/280
• US Class Current: 604/158
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0637 Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin

Abstract

In a catheterization set for placing a catheter in a blood vessel, comprising a puncture needle (10) with a needle hub (16) carrying a grip device (25), a catheter (13) surrounding the puncture needle (10) and having a catheter hub (41) arranged thereon, and a guide wire (12) axially displaceable in the lumen of the puncture needle (10), it is provided, according to the invention, that a grip means (32) of the grip device (25) is arranged in spaced relationship beside the puncture needle (10). In this manner, the puncturing properties of the catheterization set are improved because the user can rest his hand performing the puncture in the immediate vicinity of the puncture site.

Claims

1. A catheterization set for placing a catheter in a blood vessel, comprising:

a puncture needle comprising a steel needle and a needle hub, the steel needle having a distal tip portion, a wall and a lumen,

a capillary tube surrounding the steel needle. the capillary tube having a tip,

a catheter hub arranged on the capillary tube, and

a guide wire axially displaceable in the lumen of the steel needle,

the steel needle and the capillary tube being arranged so that the tip portion of the steel needle is freely extendable beyond the tip of the capillary tube by a length of between about 15 mm and about 25 mm,

the wall of the steel needle having a hole formed therein before the tip of the capillary tube.

2. The catheterization set of claim 1, wherein the steel needle and the capillary tube are arranged so that the tip portion of the steel needle is freely extendable beyond the tip of the capillary tube by a length of about 20 mm.

3. The catheterization set of claim 1, comprising a valve body with a self-closing passage, the valve body being accommodated in the catheter hub.

4. The catheterization set of claim 3, wherein the valve body comprises an elastomeric disk having a slit formed therein, and further comprising:

a tube conduit having a connector piece connectable to the catheter hub and being provided with a coaxial tubular hold-open device for penetrating the slit of the elastomeric disk.

5. The catheterization set of claim 4, comprising a stopcock provided at an end of the tube conduit which faces away from the connecter piece.

6. The catheterization set of claim 5, wherein the stopcock comprises a three-way stopcock.