Surgical drain

Patent metadata

Field	Value
Publication number	US-11426106-B2
Application number	US-201815967981-A
Country	US
Kind code	B2
Filing date	May 1, 2018
Priority date	May 23, 2017
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

A medical drain sensor is provided located in a region of a drain tube which has turbulent or re-circulatory exudate flow. Means are provided in some embodiments to promote or enhance such flow.

First claim

What is claimed is:

1. A medical drain for draining exudate from a surgical site, comprising:
a tube including a first lumen and a second lumen, wherein the first lumen is within a vertical limb of a “T” shaped section of the tube;
at least one sensor located in the first lumen of the tube and configured to be exposed to exudate flow and located in a region of re-circulatory exudate flow, wherein the at least one sensor is disposed within the first lumen of the tube such that fluid that bypasses the first lumen bypasses the at least one sensor; and
at least two turbulators disposed within the tube, a first turbulator of the at least two turbulators configured to at least one of provide or enhance a re-circulatory exudate flow and to initially direct its re-circulatory exudate flow away from the at least one sensor, the first turbulator extending in a direction of flow and forming a wedge shape, a second turbulator of the at least two turbulators configured to at least one of provide or enhance a re-circulatory exudate flow and to initially direct its re-circulatory exudate flow toward the at least one sensor,
wherein each of the first turbulator and the second turbulator includes an inclined face; and
wherein the second lumen defines a constant internal diameter exclusive of the first turbulator and the second turbulator.

2. The medical drain of claim 1 , wherein each of the first turbulator and the second turbulator comprises a projection extending inwardly to a longitudinal axis of the tube from an internal face of the tube.

3. The medical drain of claim 2 , wherein the first turbulator projects inwardly by a distance in the range of ⅕ to ⅓ of the internal diameter of the tube.

4. The medical drain of claim 3 , wherein the distance is ¼ of the internal diameter of the tube.

5. The medical drain of claim 1 , wherein the first turbulator extends in the direction of flow by a distance in the range of 10% to 0.70% of the internal diameter of the tube.

6. The medical drain of claim 5 , wherein the first turbulator extends in the direction of flow by the distance equal to 0.50% of the internal diameter of the tube.

7. The medical drain of claim 1 , wherein the inclined face is inclined at an angle to an inner wall of the tube, the angle ranging from 14.5 degrees to 45 degrees.

8. The medical drain of claim 7 , wherein the angle ranges from 14.5 degrees to 30 degrees.

9. The medical drain of claim 1 , wherein the at least one sensor is a microelectrode sensor or an array of microelectrode sensors.

10. The medical drain of claim 1 , wherein the at least one sensor is formed on a substrate positioned on a wall of the tube.

11. The medical drain of claim 1 , wherein the at least one sensor is integrally formed on a wall of the tube.

12. The medical drain of claim 1 , wherein the at least one sensor is mounted on a removable support located in the vertical limb of the “T” shaped section of the tube.

13. The medical drain of claim 1 , wherein the at least one sensor is mounted to provide a sensor surface directed at an angle to a longitudinal axis of the tube.

14. The medical drain of claim 1 , wherein the at least one sensor includes a plurality of sensors located at regions of re-circulatory flow.

15. The medical drain of claim 1 , wherein the first turbulator and the second tubular are disposed within the second lumen.

16. The medical drain of claim 1 , wherein the first lumen has a second constant internal diameter.

Assignees

• Sofradim Production
• Cea Commissariat A Lenergie Atomique Et Aux Energies Alternatives

Inventors

• Bayon Yves
• Guyader Dagmar
• Gougis Maxime
• Alias Mélanie
• Vignoud Séverine
• Bottausci Frederic
• Mailley Pascal

Classifications

• A61B5/150992 Primary

  Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; Blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings or valves · CPC title

• A61M1/734 Primary

  Visual indicating means for flow · CPC title

• A61B5/0022

  Monitoring a patient using a global network, e.g. telephone networks, internet · CPC title

• A61M1/71

  Suction drainage systems (containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90) · CPC title

• A61B5/742

  using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339) · CPC title