Device for supplying inhalation gas to and removing exhalation gas from a patient

• US 6,634,360 B1
• Filed: 02/14/2001
• Issued: 10/21/2003
• Est. Priority Date: 09/02/1998
• Status: Expired due to Fees

• Current Assignee: Aloro Medical AB
• Original Assignee: Björn Flodin
• Inventors: Flodin, Björn
• Primary Examiner(s): Lo, Weilun
• Assistant Examiner(s): WEISS JR, JOSEPH
• Application Number:
  US09/762,855
• Time in Patent Office: 979 Days
• Field of Search: 128/204.18, 128/207.14, 128/207.15, 128/911
• US Class Current: 128/207.14
• CPC Class Codes: A61M 1/60 Containers for suction drainage, adapted to be used with an external suction source containers not adapted for subjection to vacuum A61M1/69
• CPC Class Codes: A61M 1/882 Draining devices provided with means for releasing antimicrobial or gelation agents in the drained fluid
• CPC Class Codes: A61M 16/042 with separate conduits for in-and expiration gas, e.g. for limited dead volume
• CPC Class Codes: A61M 16/0434 Cuffs
• CPC Class Codes: A61M 16/0463 combined with suction tubes, catheters or the like; Outside connections
• CPC Class Codes: A61M 2205/3382 Upper level detectors

Abstract

An integrated tracheal tube/suction ventilation and co-committal secretion removal device having first and second coaxially arranged conduits where the first interior conduit forms a lumen to deliver gas, and a circumferentially arranged second conduit lumen is structurally adapted to serve as an integral suction lumen for removal of both expiratory gases and secretions. The distal end outlets of both lumens terminate between the device'"'"'s fixing member and its distal end. The two lumen outlets are arranged such that relative to each other and the device the first interior pipe conduit forming lumen'"'"'s outlet is located at the distal end and the second pipe conduit lumen'"'"'s outlet is located at or near the distal side of the fixing member. This selection of relative positioning facilitates optimal deliver of breathing gas to a user in conjunction with removal of expiratory gases and secretions. The device is sized for location of the fixing member to its distal end from a patient'"'"'s carina to a patient'"'"'s larynx.

Claims

1. A device operable to supply inhalation gas to and remove exhalation gas from a patient having a trachea, the device comprising:

a first pipe conduit comprising an outlet opening operable to deliver inhalation gas to the patient;

a second pipe conduit comprising an inlet opening surrounding a portion of the first pipe conduit and adapted to remove exhalation gas and secretions from the patient; and

a fixing member interconnected with the device to fix the second pipe conduit in the trachea, the inlet opening of the second pipe conduit and the outlet opening of the first pipe conduit being distal to the fixing member, the relative positioning of the outlet opening and the inlet opening being selected to facilitate delivery of breathing gas to the patient in conjunction with removal of exhalation gas and secretions from the patient.

2. The device according to claim 1, wherein the pipe member comprises a first material and at least one longitudinal portion of a second material, wherein the second material has a higher shape permanence and a lower melting point than the first material.

3. The device according to claim 1, wherein the pipe member further comprises:

an S-shaped extension arranged above the fixing member.

4. The device according to claim 1, wherein the inlet opening is positioned substantially immediately adjacent beneath the fixing member.

5. The device according to claim 1, wherein the inlet opening is positioned in the vicinity of the fixing member.

6. The device according to claim 1, wherein the outlet opening is operatively positionable at a dividing region of a main bronchi of the patient.

7. The device according to claim 1, wherein the fixing member is provided on the device to be operatively positionable substantially immediately adjacent beneath a larynx of the patient.

8. The device according to claim 1, wherein the first pipe conduit extends in the second pipe conduit.

9. The device according to claim 1, wherein the second pipe conduit further comprises at least two conduit portions having sector shaped cross-sections, and wherein the two conduit portions extend substantially parallel to each other and are separated by a wall member.

10. The device according to claim 1, wherein the fixing member comprises an expansion body operatively expandable into sealing abutment against the inner wall of the trachea by the supply of an inflating medium.

11. The device according to claim 1, further comprising:

a distance member arranged around a portion of the first pipe conduit between the inlet opening and the outlet opening, and operable to ensure that the portion of the first pipe conduit is located at a distance from at least one part of an inner wall of the trachea.

12. The device according to claim 11, wherein the distance member comprises at least one resilient element including an abutment surface arranged to abut the inner wall of the trachea, wherein the abutment surface has significantly less than a surface area of the inner wall of the trachea.

13. The device according to claim 12, wherein the resilient element comprises a thread that extends in a path.

14. The device according to claim 11, wherein the distance member comprises a tubular net structure operatively positionable to abut the inner wall of the trachea.

15. The device according to claim 1, wherein the second pipe further comprises a collecting member that is arranged outside the patient at a distance from the inlet opening and operable to collect liquid and particles from the exhalation gas.

16. The device according to claim 15, further comprising:

a disinfectant provided in the collecting member and arranged to be distributed successively in liquid collected in the collecting member.

17. The device according to claim 16, wherein the disinfectant is provided in a plurality of separate areas along a path extending from a lower region of the collecting member to an upper region thereof, wherein the disinfectant is arranged to be released concurrently with the rise of the level of the collected liquid in the collecting member.

18. The device according to claim 15, wherein the collecting member further comprises a level indicator operable to indicate liquid collected from the exhalation gas.

19. The device according to claim 18, wherein the level indicator includes a medium that releases a coloring matter when the medium comes into contact with the liquid collected from the exhalation gas.

20. The device according to claim 15, wherein the second pipe conduit extends into the collecting member and includes at least one of an orifice and a perforation in the collecting member, through which the liquid present in the exhalation gas can exit.

21. The device according to claim 20, wherein the orifice is formed by a pipe portion of the second pipe conduit, wherein the pipe portion is operable to generate an audible sound during collection of liquid from the exhalation gas when a level of collected liquid reaches the pipe portion.

22. The device according to claim 21, wherein the pipe portion includes at least one slit that extends from the orifice or the perforation.

23. The device according to claim 15, wherein the pipe member further comprises:

a first portion that extends between the openings of the first pipe conduit and the second pipe conduit and the collecting member,

a second portion that extends from the collecting member and is connectable to a respirator, and

at least one connecting member operable to releasably connect the first portion and the second portion to the collecting member.

24. A device operable to supply inhalation gas to and remove exhalation gas from a patient, the device comprising:

a pipe member operable to be introduced into a trachea of a patient, the pipe member comprising

a first pipe conduit comprising an outlet opening operable to deliver inhalation gas to the patient;

a second pipe conduit comprising an inlet opening surrounding a portion of the first pipe conduit and adapted to remove exhalation gas and secretions from the patient, wherein the second pipe conduit further comprises a collecting member arranged outside the patient at a distance from the inlet opening and operable to collect liquid and particles from exhalation gas; and

a fixing member interconnected with the device to fix the second pipe conduit in the trachea, the inlet opening of the second pipe conduit and the outlet opening of the first pipe conduit being distal to the fixing member, the relative positioning of the outlet opening and the inlet opening being selected to facilitate delivery of breathing gas to the patient in conjunction with removal of exhalation gas and secretions from the patient.