Catheter needle retention and placement monitoring system and method

• US 8,444,585 B2
• Filed: 01/29/2010
• Issued: 05/21/2013
• Est. Priority Date: 01/29/2010
• Status: Active Grant

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Inventors: Cazzini, Karl H.
• Primary Examiner(s): Wiest, Philip R
• Assistant Examiner(s): KLEIN, BENJAMIN JACOB
• Application Number:
  US12/696,850
• Publication Number:
  US 20110190681A1
• Time in Patent Office: 1,208 Days
• Field of Search: 604 401- 11, 604/174, 604/180, 604/500, 604/540
• US Class Current: 604/4.01
• CPC Class Codes: A61M 1/3653 Interfaces between patient blood circulation and extra-corporal blood circuit
• CPC Class Codes: A61M 1/3656 Monitoring patency or flow at connection sites; Detecting disconnections
• CPC Class Codes: A61M 1/3659 Cannulae pertaining to extracorporeal circulation
• CPC Class Codes: A61M 2025/0266 using pads, patches, tapes or the like
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066

Abstract

A blood access device includes (i) a first layer, a bottom surface of the first layer including (a) an adhesive or (b) a hook and loop material for securing the first layer to a patient, a first conductive attachment material located at a top surface of the first layer; (ii) a first conductor contacting the first conductive attachment material; (iii) a second layer, a second conductive attachment material located at a bottom surface of the second layer, the first and second conductive attachment materials configured to be releasably secured to each other; (iv) a second conductor contacting the second conductive attachment material; and (v) a blood vessel access member carried by the second layer.

Claims

1. A blood access device comprising:

a first layer, a bottom surface of the first layer including (i) an adhesive or (ii) a hook and loop material for securing the first layer to a patient, a first conductive attachment material located at a top surface of the first layer;

a first conductor contacting the first conductive attachment material;

a second layer, a second conductive attachment material located at a bottom surface of the second layer, the first and second conductive attachment materials configured to be releasably secured to each other;

a second conductor contacting the second conductive attachment material; and

a blood vessel access member carried by the second layer,

wherein the first conductive attachment material includes one of a hook and a loop material and the second conductive attachment material includes one of a hook and a loop material, respectively.

2. The blood access device of claim 1, wherein the first and second conductors are configured to extend to and interface with a blood therapy treatment machine.

3. The blood access device of claim 1, wherein the blood vessel access member is attached along a top surface of the second layer.

4. The blood access device of claim 1, wherein the blood vessel access member includes a housing releasably secured to the second layer.

5. The blood access device of claim 1, wherein the first and second conductive attachment materials form matching patterns.

6. The blood access device of claim 5, wherein the first conductor contacts each segment of the first conductive attachment material pattern and the second conductor contacts each segment of the second conductive attachment material pattern.

7. The blood access device of claim 1, wherein the first layer defines a guide for guiding the blood vessel access member to a desired access site for accessing the blood vessel.

8. The blood access device of claim 1, wherein the first layer includes an inflatable bladder located between the adhesive, when provided, and the first conductive attachment material.

9. The blood access device of claim 1, wherein the second layer is configured to enable the blood vessel access member to access the blood vessel prior to a securement of the first conductive attachment material to the second conductive attachment material.

10. The blood access device of claim 1, which includes first and second butterfly flanges extending from a housing holding the blood vessel access member, the second conductive attachment material distributed onto the first and second butterfly flanges.

11. The blood access device of claim 10, wherein the first and second butterfly flanges are configured to be deployed to allow the second conductive attachment material to be secured to the first conductive attachment material after the blood vessel access member has accessed the blood vessel.

12. The blood access device of claim 1, wherein at least one of the first and second layers is reusable.

13. A system including a dialysis machine in electrical communication with the blood access device of claim 1, wherein at least one function of the dialysis machine is disabled if the second conductive attachment material comes loose from the first conductive attachment material.

14. The blood access device of claim 1, which includes a signal emitter in electrical communication with the first and second conductors, the signal emitter emitting or changing a signal to a medical device having a signal receiver when the second conductive attachment material is attached to or unattached from the first conductive attachment material.

15. A blood therapy system comprising:

a blood pump;

a blood access device configured to access a blood vessel of a patient, the blood access device including (i) a first conductive attachment material for connection to the patient, (ii) a first conductor contacting the first conductive attachment material, (iii) a second conductive attachment material, and (iv) a second conductor contacting the second conductive attachment material; and

wherein the blood pump is enabled for operation when second conductive attachment material is connected to the first conductive attachment material, and

wherein the first conductive attachment material includes one of a hook and a loop material and the second conductive attachment material includes one of a hook and a loop material, respectively.

16. The blood therapy system of claim 15, which includes an electrical supply in electrical communication with the first and second conductors.

17. The blood therapy system of claim 15, which is a dialysis system, and which includes a blood vessel access member carried with the second conductive attachment material, the blood vessel access member configured to access the blood vessel of the patient.

18. The blood therapy system of claim 15, wherein the blood vessel access member includes a housing releasably secured to the second layer.

19. The blood therapy system of claim 15, wherein the first and second conductive attachment materials form part of a resistance bridge circuit used for enabling or disabling the blood pump.

20. A blood therapy system comprising:

a machine including a blood pump; and

a blood access device configured to access a blood vessel of a patient, the blood access device including (i) a first conductive attachment material for connection to the patient, (ii) a first conductor contacting the first conductive attachment material, (iii) a second conductive attachment material, (iv) a second conductor contacting the second conductive attachment material, and (v) a signal emitter in electrical communication with the first and second conductors, the signal emitter emitting a signal to a signal receiver located with the machine to enable operation of the blood pump when the second conductor attachment material is connected to the first conductive attachment material, and

wherein the first conductive attachment material includes one of a hook and a loop material and the second conductive attachment material includes one of a hook and a loop material, respectively.