Guide wire assembly with electrical functions and male and female connectors for use therewith

• US 4,961,433 A
• Filed: 11/02/1988
• Issued: 10/09/1990
• Est. Priority Date: 11/02/1988
• Status: Expired due to Term

• Current Assignee: Volcano Corporation (Koninklijke Philips N.V.)
• Original Assignee: Cardiometrics, Inc. (JOMED NV)
• Inventors: Christian, Jeffrey J.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): Shay, Randy
• Application Number:
  US07/265,909
• Time in Patent Office: 706 Days
• Field of Search: 128/657, 128/772, 604/95, 604/164, 604/280, 604/282, 604/283, 439/668, 439/669, 439/816, 439/825
• US Class Current: 600/585
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• CPC Class Codes: A61B 2018/00988 Means for storing information, e.g. calibration constants, or for preventing excessive use, e.g. usage, service life counter
• CPC Class Codes: A61M 2025/09175 having specific characteristics at the distal tip
• CPC Class Codes: A61M 25/09 Guide wires
• CPC Class Codes: H01R 13/33 Contact members made of resilient wire
• CPC Class Codes: H01R 2201/12 for medicine and surgery

Abstract

A guide wire assembly comprising a guide wire with first and second conductors which extend along the length thereof. The guide wire also comprises a flexible cable having first and second conductors which extend along the length thereof. A connector assembly is provided for interconnecting the flexible cable to said guide wire and interconnecting the conductors carried thereby. The connector assembly includes a male connector with a sleeve and a conductive core which is mounted in the sleeve. An insulator is mounted in the sleeve and insulates the conductive core from the sleeve. A conductive band is carried by the insulator and is spaced from the sleeve. The first and second conductors are disposed within the sleeve. The first connector is connected to the conductive core and the second conductor is connected to the conductive band. The connector assembly includes a female connector that has an inner conductive grip which has a cylindrical recess for receiving the conductive core and an outer conductor grip that has a cylindrical band which engages the portion extending forwardly of the inner conductive grip. An insulator is disposed between the inner and outer conductive grips. An insulating case is mounted on the outer conductive grip. First and second conductors are disposed within the case. The first conductor is connected to the inner conductive grip. The second conductor is connected to the outer conductive grip. The female connector receives the male connector and the first conductive grip receives the conductive core in the cylindrical recess of the first conductive grip. The second conductive grip receives the conductive band of the male connector by the cylindrical band receiving portion of the outer conductive grip engaging the band.

Claims

1. In a guide wire assembly, a flexible guide wire having a diameter of 0.018 inches or less and having first and second conductors extending along the length thereof, a flexible cable having first and second conductors extending along the length thereof, and connector means for interconnecting the flexible cable to said guide wire and interconnecting the conductors carried thereby, said connector means including a male connector and a female connector, said male connector comprising a sleeve, a conductive core were mounted in the sleeve, insulating means mounted in the sleeve and insulating the conductive core wire from the sleeve, a conductive cylindrical member carried by the insulating means and spaced from the sleeve, first and second conductors disposed within the sleeve with the first conductor being connected to the conductive core and the second conductor being connected to the conductive cylindrical member, said female connector comprising an inner conductive grip having a cylindrical recess for receiving the conductive core wire, an outer conductive grip having a cylindrical member engaging portion, insulating means disposed between the inner and outer conductive grips, an insulating case mounted on the outer conductive grip, first and second conductors disposed within the case with the first conductor being connected to the inner conductive grip and the second conductor being connected to the outer conductive grip, the female connector receiving the male connector with the inner conductive grip receiving the conductive core in the cylindrical recess of the inner conductive grip and with the outer conductive grip receiving the conductive member of the male connector by the cylindrical member engaging portion of the outer conductive grip engaging the conductive cylindrical member.

2. An assembly as in claim 1 wherein said conductive core has a crimped extremity.

3. An assembly as in claim 1 wherein the male and female connectors have a co-axial construction.

4. An assembly as in claim 1 wherein the male connector, is provided with additional conductive cylindrical members insulated from each other and wherein the female connector is provided with additional conductive grips positioned to engage the additional conductive cylindrical members of the male connector.

5. In a guide wire assembly, a guide wire in the form of a tubular member having a diameter of 0.018 inches or less and having a proximal extremity. having first and second conductors extending along the length of the tubular member a male connector connected to the proximal extremity of the tubular member, the male connector comprising a conductive cylindrical sleeve, means a conductive probe extending beyond the sleeve means, insulating means insulating the sleeve means from the probe from the tubular member, and means connecting the first and second conductors to the probe and to the sleeve means.

6. A guide wire as in claim 5 wherein the probe has a proximal extremity which is crimped.

7. A guide wire as in claim 5 together with an exchange guide wire, the exchange guide wire having a distal extremity, the distal extremity including a sleeve, the sleeve receiving the conductive probe of the guide wire so that the guide wire and the exchange guide wire are frictionally interconnected to inhibit separation of the guide wire from the exchange guide wire.