EMERGENCY PERCUTANEOUS TRANS-TRACHEAL HIGH FLOW OXYGEN CATHETER-TYPE RESUSCITATOR FOR RESTORATION OF BREATHING IN NON-BREATHING PATIENTS

• US 3,682,166 A
• Filed: 07/29/1970
• Issued: 08/08/1972
• Est. Priority Date: 07/29/1970
• Status: Expired due to Term

• Current Assignee: Harvey Barry Jacobs
• Original Assignee: Harvey Barry Jacobs
• Inventors: Jacobs, Harvey Barry
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Mitchell, J. B.
• Application Number:
  US05/059,206
• Time in Patent Office: 741 Days
• Field of Search: 128/145.8,145.5,145.6,145.7,140,145R,142.2,142.3,142.4,351,305
• US Class Current: 128/205.19
• CPC Class Codes: A61M 16/00 Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes stimulating the respiratory movement by mechanical, pneumatic or electrical means, iron lungs combined with gas breathing means A61H31/00
• CPC Class Codes: A61M 16/0452 following the inspiration and expiration pressure
• CPC Class Codes: A61M 16/0465 Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters
• CPC Class Codes: A61M 16/0472 Devices for performing a tracheostomy
• CPC Class Codes: A61M 16/16 Devices to humidify the respiration air A61M16/1045 takes precedence
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0668 splittable, tear apart

Abstract

An emergency percutaneous trans-tracheal high flow oxygen resuscitator of the catheter type which restores breathing to a non-breathing patient comprising a soft plastic catheter molded from non-pyrogenic thermoplastic material such as polyethylene, polytetrafluorethylene, polypropylene, polycarbonate or other readily sterilized, orientable material which is precurved at its long tubular bottom portion for proper positioning in the median axis of the trachea after straight insertion by means of a cooperating, interiorly positioned hypodermic needle through the crico-thyroid membrane of the patient. The catheter has outwardly projecting wing portions at the top collar portion, the collar accommodating a suction tube or an oxygen tube after the needle is removed. Suction aids in the exhale phase of ventilating the lungs. Ventilating apparatus is provided for connection to the catheter. The apparatus comprises cyclically operated valve means for selectively connecting the catheter to a source of compressed oxygenated gas or to a source of vacuum for inflation and deflation in the breathing cycle. Other valve means are provided to vary the ratio of inflation and deflation phases during a cycle. The cyclically operated valve means are driven by air motor means powered by the compressed gas. Another set of valves is provided whereby the cyclically operated valve controlled conduit system is bypassed and the catheter may be selectively connected to the oxygenated gas or to the suction source by a manually operated valve in accordance with the requirements of the condition of the patient.

Claims

1. A patient adaptor means comprising the combination of a ventilating apparatus and a tracheotomy instrument, said tracheotomy instrument including a catheter of plastic material which has a plastic memory and is fabricated in a curved shape, said catheter adapted to fit over the outside of a substantially straight needle and be straightened out by said needle when the needle is pushed through the catheter and penetrates into the trachea to have the catheter therein, said material causing the catheter to resume the original curved shape as a result of said plastic memory within the trachea after the needle is withdrawn therefrom, attachment means secured to said catheter near the outer end where the needle is totally withdrawn after the catheter has been inserted into the trachea, said attachment means adapting the catheter to be taped, tied or fastened to the neck, and a fluid fitting at said outer end connected to said ventilating apparatus, said ventilating apparatus comprising a pressurized source of oxygenated gas connected to a pressure conduit, a vacuum source connected to a suction conduit and an output conduit connected to said fluid fitting, valve means interconnecting said pressure, suction and output conduits, and passage means in said valve means to connect said pressure conduit to said output conduit and to disconnect said suction conduit from said output conduit to provide an inflation phase in one position and to connect said suction conduit to said output conduit and disconnect said pressure conduit from said output conduit to provide a deflation phase when said valve means are in a second position, said valve means comprising valve members cyclically operated by an air motor mechanically connected thereto, and a throttle valve connected to said motor to regulate the flow of control fluid thereto.

2. A patient adaptor means as claimed in claim 1, wherein the passage means in the valve means are arranged to provide the conduit connections of the deflation phase in at least one more or third position of the valve means during a cycle of movement to thereby obtain an additional deflation phase.

3. A patient adaptor means as claimed in claim 2, wherein said valve members are rotated by said motor and the conduit connections of the deflation phase are repeated at a third and a fourth position during a single revolution of the valve members.

4. A patient adaptor means as claimed in claim 2, wherein the valve means include a valve having a plurality of passages which provide for the conduit interconnections for said first inflation phase and said second and third deflation phases at one setting of the valve, and when said valve is shifted to a second setting, said passages provide the conduit interconnections for a second inflation phase.

5. A patient adaptor means as claimed in claim 1, wherein a bypass conduit is provided to bypass said valve means, first manually controlled valve means to disconnect the output conduit from said motor operated valve means anD to connect the output conduit to one end of said bypass conduit, and second manually controlled valve means to selectively connect the other end of the bypass conduit to either the pressure conduit for an inflation phase or to the suction source for a deflation phase.

6. A patient adaptor means as claimed in claim 5, wherein a throttle valve is located in the bypass conduit to control the rate of flow of the pressurized gas.

7. A as claimed in claim 1, wherein a throttle valve is located in the suction conduit to regulate the rate of deflation of the patient.

8. Ventilating apparatus comprising an output conduit for connection to the trachea of a patient requiring inflation and deflation phases comprising a pressurized source of oxygenated gas, a vacuum source, a pressure conduit connected to the pressurized source, a suction conduit connected to the suction source, valve means interconnecting said pressure, suction and output conduits, motor means mechanically connected to said valve means for cyclically operating said valve means to inflate positions and to deflate positions, a reduction gear train connecting said motor means to said valve means, and passage means in said valve means to connect said pressure conduit to said output conduit and to disconnect said suction conduit from said output conduit to provide an inflation phase in one position and to connect said suction conduit to said output conduit and disconnect said pressure conduit from said output conduit to provide a deflation phase when said valve means are in a second position.

9. Ventilating apparatus as claimed in claim 8, wherein said motor means is an air motor operated by the pressurized gas, and wherein a throttle valve is provided to regulate the flow of pressure fluid to the motor.

10. Ventilating apparatus as claimed in claim 9, wherein the passage means in the valve means are arranged to provide the conduit connections of the deflation phase in at least one more or third position of the valve means during a cycle of movement to thereby obtain an additional deflation phase.

11. Ventilating apparatus as claimed in claim 10, wherein said valve members are rotated by said motor and the conduit connections of the deflation phase are repeated at a third and a fourth position during a single revolution of the valve members.

12. Ventilating apparatus as claimed in claim 10, wherein the valve means include a valve having a plurality of passages which provide for the conduit interconnections for said first inflation phase and said second and third deflation phases at one setting of the valve, and when said valve is shifted to a second setting, said passages provide the conduit interconnections for a second inflation phase.

13. Ventilating apparatus as claimed in claim 9, wherein a bypass conduit is provided to bypass said valve means, first manually controlled valve means to disconnect the output conduit from said motor operated valve means and to connect the output conduit to one end of said bypass conduit, and second manually controlled valve means to selectively connect the other end of the bypass conduit to either the pressure conduit for an inflation phase or to the suction source for a deflation phase.

14. Ventilating apparatus as claimed in claim 13, wherein a throttle valve is located in the bypass conduit to control the rate of flow of the pressurized gas.

15. Ventilating apparatus as claimed in claim 14, wherein all the claimed valve means and valves, and the drive motor and the conduit are housed in a carrier case and wherein the throttle valves and the first and second manually operated valve means are provided with handle means protruding from the case for access thereof to the operator.