Catheter system

• US 6,224,585 B1
• Filed: 07/01/1999
• Issued: 05/01/2001
• Est. Priority Date: 08/07/1997
• Status: Expired due to Fees

• Current Assignee: Pulsion Medical Systems AG
• Original Assignee: Pulsion Medical Systems AG
• Inventors: Pfeiffer, Ulrich
• Primary Examiner(s): Coggins, Wynn Wood
• Assistant Examiner(s): Sirmons, Kevin C.
• Application Number:
  US09/269,733
• Time in Patent Office: 670 Days
• Field of Search: 606/42.31, 607/102, 600/549, 600/486, 600/585, 604/523, 604/533, 604/541
• US Class Current: 604/523
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2025/0183 Rapid exchange or monorail catheters
• CPC Class Codes: A61M 25/003 characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves catheter tips A61M25/0067

Abstract

A catheter system comprising a catheter including a tip having a distal opening, a first opening, and a guide wire lumen extending from the distal opening to the first opening provided on a surface of the catheter, and a guide wire having a length substantially smaller than a length dimension of the catheter. The catheter system in accordance with the present invention may include a sensor lumen and a pressure lumen. The sensor lumen terminates at the first opening and includes an optically transparent closure and the pressure lumen includes a second opening. In the preferred embodiment, the first opening and the second opening are positioned on the catheter at substantially same axial distance from the distal opening and further includes a perforation that allows fluidic communication between the pressure lumen and the first opening. The catheter system may also comprise a pressure hose, at least one optical fiber and a thermal sensor element. Furthermore, the catheter system may further comprise a three-way valve, a pressure transducer, a flushing valve, a flow controller, and a drip chamber.

Claims

1. A catheter system comprising:

a catheter including a tip having a distal opening, a first opening, and a guide wire lumen extending from said distal opening to said first opening, said first opening provided on a surface of said catheter;

a guide wire having a length substantially less than a length dimension of said catheter;

a pressure lumen extending in a longitudinal direction of said catheter;

a sensor lumen extending in a longitudinal direction of said catheter;

a pressure hose connected to a proximal end of a pressure opening of said pressure lumen,

a pressure transducer in fluidic communications with said pressure hose;

said pressure transducer including a connecting plug to allow electrical communication with a pressure monitor; and

a flushing valve connected to said pressure hose and in fluid communication with a flow controller which is in fluid communication with a drip chamber.

2. Catheter system of claim 1, wherein said length dimension of said catheter is at least 10 cm.

3. Catheter system of claim 2, wherein said guide wire is substantially 20 cm in length and said length dimension of said catheter is substantially 50 cm.

4. Catheter system of claim 1, wherein said sensor lumen terminates at said first opening and includes an optically transparent closure.

5. Catheter system of claim 1, wherein said pressure lumen includes a second opening.

6. Catheter system of claim 5, wherein said first opening and said second openings are positioned on said catheter at a substantially same longitudinal distance from said distal opening.

7. Catheter system of claim 5, wherein said catheter further includes a perforation for allowing fluidic communication between said pressure lumen and said first opening.

8. Catheter system of claim 7 further comprising:

at least one optical fiber positioned within said sensor lumen, said optical fiber terminating at said optically transparent closure and emerging at a proximal end sensor opening of said sensor lumen; and

a thermal sensor element positioned within said sensor lumen, said thermal sensor element including a signal connection which emerges from said proximal end sensor opening of said sensor lumen.

9. Catheter system of claim 8, further comprising a three-way valve connected to said pressure hose by a lateral Luer lock connection.