ECG Patient monitoring lead assembly

• US 4,351,343 A
• Filed: 09/02/1980
• Issued: 09/28/1982
• Est. Priority Date: 09/02/1980
• Status: Expired due to Term

• Current Assignee: Amphenol Interconnect Products Corporation (Amphenol Corporation)
• Original Assignee: Bunker Ramo Corporation (Honeywell International Inc.)
• Inventors: Colwell, John C., Parrillo, Michael R.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US06/183,137
• Time in Patent Office: 756 Days
• Field of Search: 128/695, 128/696, 128/639, 174/65 G, 339/61 C, 339/61 M, 339/103 B
• US Class Current: 600/508
• CPC Class Codes: A61B 2562/227 Sensors with electrical connectors
• CPC Class Codes: A61B 5/303 Patient cord assembly, e.g. cable harness
• CPC Class Codes: H01R 13/639 Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
• CPC Class Codes: H01R 2201/12 for medicine and surgery
• CPC Class Codes: H02G 3/083 Inlets

Abstract

A multi-contact, feed through connector within a junction box connects patient monitoring electrode leads to a bulk cable which is coupled to ECG apparatus. Access to the interior of the junction box is provided for purposes of replacing the electrode leads when and if needed. Strain relief means are provided for isolating the connector from forces transmitted by the patient monitoring leads.

Claims

1. An ECG patient monitoring lead assembly comprising:

a plurality of individually replaceable patient monitoring leads;

a junction box for receiving a plurality of ECG leads and said plurality of patient monitoring leads;

connection means in said junction box for electrically inter-connecting corresponding ones of said monitoring leads and said ECG leads; and

strain relief means independent of said connection means for isolating said connection means from forces transmitted by said patient monitoring leads.

2. The assembly of claim 1, wherein said strain relief means include said junction box;

and

elastomeric means captivating said monitoring leads to said junction box.

3. The assembly as set forth in claim 2 wherein said connection means include;

a multi-contact connector affixed to said junction box and coupled to said ECG leads; and

a plurality of removable connectors cooperating with portions of said multi-contact connector for selectively interconnecting said ECG leads and said monitoring leads.

4. The assembly as set forth in claim 3 wherein said multi-contact connector is removably mounted to said junction box, and wherein said plurality of ECG leads are grouped into a bulk cable, and further including;

means for releasably connecting said bulk cable to said ECG apparatus; and

means for removably attaching said bulk cable to said junction box to permit field-replacement of said bulk cable.

5. The assembly as set forth in claim 4 wherein said junction box is totally enclosed and includes an openable portion permitting access to the interior.

6. The assembly as set forth in claim 5 wherein said openable portion includes baffle means cooperating with said junction box and said elastomeric means.

7. The assembly as set forth in claim 6 wherein both said multi-contact connector and said plurality of removable connectors are identity-coded to enable proper interconnection thereof.

8. The assembly as set forth in claim 6 therein said monitoring leads are shielded, and further including;

ground means on said junction box for retention of any unused monitoring leads.

9. The assembly as set forth in claim 2 wherein said elastomeric means comprise elongated strain relief grommets, molded to said monitoring leads, and having retention means formed therein;

said junction box defining apertures permitting an interference fit with said grommets and including support means cooperating with said retention means for holding said grommets securely in position.

10. The assembly as set forth in claim 9 wherein said junction box is totally enclosed, wherein said support means defines a first support baffle, and further includes;

an openable portion permitting access to the interior, said openable portion including a second support baffle cooperating with said first support baffle and with said retention means on said grommet.

11. The assembly as set forth in claim 10 wherein said openable portion is affixed by removable fasteners.

12. An ECG patient monitoring lead assembly comprising:

a plurality of individually replaceable patient monitoring leads;

a junction box for receiving a plurality of ECG leads and said plurality of patient monitoring leads;

a multi-contact connector affixed to said junction box and coupled to said ECG leads;

a plurality of removable connectors cooperable with portions of said multi-contact connector for selectively interconnecting said ECG leads and said patient monitoring leads; and

strain relief means comprising elastomeric grommets embracing said monitoring leads and cooperating with said junction box for isolating said connector from forces transmitted by said monitoring leads.

13. The assembly of claim 12 wherein said junction box is totally enclosed and includes an access panel permitting access to the interior thereof.

14. The assembly of claim 13 wherein said grommets include retention grooves cooprating with said junction box and said access panel.

15. The assembly of claim 14 wherein both said multi-contact connector and said plurality of removable connectors are identity-coded to facilitate proper interconnection thereof.

16. An ECG patient monitoring lead assembly comprising:

a junction box;

a plurality of individually replaceable patient monitoring leads;

a replaceable bulk cable, including a plurality of ECG leads, having one end terminating in a removable connector for attachment to ECG apparatus;

a multi-contact connector mounted in said junction box;

a plurality of individual connectors removably connecting said monitoring leads to said multi-contact connector;

means connecting individual ones of said ECG leads in said bulk cable to said multi-contact connector;

a plurality of elastomeric grommets molded about individual ones of said monitoring leads;

a plurality of openings defined by said junction box and sized such that said elastomeric grommets are an interference fit therein;

said junction box including support means for cooperation with grooves in said grommets such that said grommets are retained in said junction box when installed; and

a removable access panel affixed to said junction box and including baffle means for cooperating with the grooves in said grommets and the support means in said junction box for precluding access to said junction box and for enhancing the strain relief provided by said grommets.

17. The assembly of claim 16 wherein said ECG leads and said patient monitoring leads are shielded conductors, and further including;

ground strap means in said junction box for holding unused patient monitoring leads with the shielded conductors grounded.

18. The assembly of claim 17 wherein both said multi-contact connector and said plurality of removable connectors are identity-coded to facilitate proper interconnection thereof.