Electrode junction assembly

• US 5,277,613 A
• Filed: 05/18/1992
• Issued: 01/11/1994
• Est. Priority Date: 05/18/1992
• Status: Expired due to Term

• Current Assignee: Coopersurgical Incorporated (The Cooper Cos., Inc.)
• Original Assignee: Theodore C. Neward
• Inventors: Neward, Theodore C.
• Primary Examiner(s): Schwartz, Larry I.
• Assistant Examiner(s): NGUYEN, KHIEM M
• Application Number:
  US07/885,152
• Time in Patent Office: 603 Days
• Field of Search: 439/268, 439/269.1, 439/729, 439/819, 439/822, 439/835, 439/909, 128/642, 128/784
• US Class Current: 439/729
• CPC Class Codes: A61B 5/274 using snap or button fasteners
• CPC Class Codes: A61B 5/288 for foetal cardiography, e.g. scalp electrodes
• CPC Class Codes: A61B 5/4362 Assessing foetal parameters
• CPC Class Codes: H01R 2201/12 for medicine and surgery
• CPC Class Codes: H01R 4/4872 axially compressed to retain wire end
• CPC Class Codes: Y10S 439/909 Medical use or attached to human body

Abstract

There is disclosed herein an electrical junction block particularly for use with a fetal electrode and electronic monitor. The junction block comprises a housing having a cavity therein, and a substantially U-shaped spring disposed in the cavity. The spring has legs which are biased outwardly by a suitable coil spring. The housing contain electrical contacts and wires connected thereto, and the U-shaped spring can be depressed to provide openings for receiving electrode wires. A mounting pad can be disposed on the housing for facilitating mounting of the assembly on a person during use.

Claims

1. An electrical junction block for use with a fetal electrode and electronic monitor comprising

a housing having sides and having a cavity therein,

a substantially U-shaped spring disposed in the cavity, and having post members extending through the sides of the housing to enable the spring to be depressed by fingers of a person, the spring having legs terminating in angled ends disposed adjacent angled members of the housing defining therebetween a pair of guide entries for receiving the ends of electrical conductors of a fetal electrode, and

electrical contacts connected with the housing adjacent the guide entries for electrically connecting with conductors of an electrode, and wires connecting the contacts and adapted to be connected to an electronic monitor.

2. An assembly as in claim 1 including

a cover secured to the housing, and

an attachment pad adapted to be connected to the housing for facilitating attachment of the assembly to a person.

3. An electrode junction block for use with a fetal electrode and electronic monitor comprising

a housing having walls forming an interior cavity and the housing including apertures in the walls,

a substantially U-shaped spring disposed in the cavity, the spring having legs disposed adjacent walls of the cavity for defining between each leg and a wall of the cavity a pair of guide entries for receiving the ends of electrical conductors of a fetal electrode,

the legs including post members extending through the apertures in the walls of the housing and terminating in buttons external to sides of the housing for facilitating depression of the legs of the spring for enabling insertion of electrode conductors into the guide entries,

electrical contacts disposed in the housing adjacent the guide entries for electrically connecting with conductors of an electrode, and wires connecting the contacts and adapted to be connected to an electronic monitor,

the housing and U-shaped spring being molded of plastic, and

a cover attached to the housing and covering the cavity and spring.

4. An assembly as in claim 3 wherein

the legs of the U-shaped spring terminate in angled ends disposed against the walls of the housing, and the walls of the housing having angled members wherein the angled ends and angled members form said guide entries each substantially in the shape of the outline of a funnel.

5. An assembly as in claim 4 wherein

the legs of the U-shaped spring include protrusions adjacent the angled ends thereof forming a shutter to block improper entry of conductors of an electrode,

the legs of the U-shaped spring include facing fingers which form stops for limiting the degree of depression of the legs, and

a coil spring is disposed on the fingers for urging the legs against the respective electrical contacts.

6. An assembly as in claim 3 wherein each leg of the U-shaped spring is acutely angled away from a respective wall, and each wall has a portion acutely angled away from a respective leg, thereby forming a guide entry substantially in the shape of a "Y" to ease entry of electrode conductors.

7. An electrical junction block for use with a fetal electrode and electronic monitor comprising

a housing having sides and having a cavity therein,

a substantially U-shaped spring disposed in the cavity, and having post members extending through the sides of the housing to enable the spring to be depressed by fingers of a person, the spring having legs terminating in angled ends disposed adjacent angled members of the housing defining therebetween a pair of guide entries for receiving the ends of electrical conductors of a fetal electrode,

electrical contacts connected with the housing adjacent the guide entries for electrically connecting with conductors of an electrode, and wires connecting the contacts and adapted to be connected to an electronic monitor,

a coil spring mounted between said legs to bias the legs toward the electrical contacts, and

said post members of the spring terminate in buttons external to the sides of the housing for facilitating depression of the legs of the spring for enabling insertion of electrode conductors of an electrode, and the post members provide stops for limiting the insertion of conductors of an electrode.

8. An electrical junction block for use with a fetal electrode and electronic monitor comprising

a housing having sides and having a cavity therein,

a substantially U-shaped spring disposed in the cavity, and having post members extending through the sides of the housing to enable the spring to be depressed by fingers of a person, the spring having legs terminating in angled ends disposed adjacent angled members of the housing defining therebetween a pair of guide entries for receiving the ends of electrical conductors of a fetal electrode,

electrical contacts connected with the housing adjacent the guide entries for electrically connecting with conductors of an electrode, and wires connecting the contacts and adapted to be connected to an electronic monitor,

a cover secured to the housing,

the legs of the U-shaped spring have legs facing each other to limit the degree of depression of the spring,

the legs of the U-shaped spring have facing protrusions adjacent the angled ends thereof to minimize improper insertion of conductors of an electrode, and

the housing, U-shaped spring and cover are molded of plastic material.

9. An assembly as in claim 8 including

a pad rotatably attachable to the housing for facilitating mounting the junction block on a person.