US3856051A - Flexible tube device - Google Patents

Flexible tube device Download PDF

Info

Publication number
US3856051A
US3856051A US32469073A US3856051A US 3856051 A US3856051 A US 3856051A US 32469073 A US32469073 A US 32469073A US 3856051 A US3856051 A US 3856051A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
tubular member
flexible
pipe
means
end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
J Bain
Original Assignee
J Bain
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/20Double-walled hoses, i.e. two concentric hoses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0087Environmental safety or protection means, e.g. preventing explosion
    • A61M16/009Removing used or expired gases or anaesthetic vapours
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06Respiratory or anaesthetic masks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/22Multi-channel hoses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057Pumps therefor
    • A61M16/0078Breathing bags

Abstract

A flexible concentric pipe assembly in which one end of the inner pipe communicates with the outside of the outer pipe, with the remaining end of the inner pipe communicating with the inside of the outer pipe.

Description

Umted States Patent [1 1 [111 3,856,051

Bain [451 Dec. 24, 1974 1 FLEXIBLE TUBE DEVICE [76] Inventor: James A. Rain, 1650 Gloucester [56] References and Rd., London 12, Ontario, Canada UNITED STATES PATENTS Jan. et a1 [21] Appl. No.2 324,690 Primary ExaminerJerry W. Myracle Attorney, Agent, or Firm-Irvin A. Lavine [30] Foreign Application Priority Data ABSTRACT Feb. 28, 1972 Canada 135657 A xib e C ncentr c pipe assemb y in which one end [52] U S Cl 138/114 of the inner pipe communicates with the outside of the [51] In} .Cl 11/12 outer p p with the remaining end of the inner p p [58] Field 0i"iiii'ffjjlifjj'fi)'ii'i"'i'i4 115 116 nnnnnnninniinn win in inninn ni inn nine- 7 Claims, 5 Drawing Figures PATENTED [1EC24I974 sum 2 as g Yum-mm" nllllllllllm @P WMH FLEXIBLE TUBE DEVICE This invention relates to an anaesthetic device.

In partial rebreathing anaesthetic systems various types of systems and devices have been composed; however, such systems suffer from convenience of operation and simplicity when they are employed.

The present invention therefore achieves a system and a device which eliminates the use of a plurality of separate tubes for such circuit and provides means for supplying an anaesthetic gas closely to the nasal and oral passages of a patient. It also produces a simpler more convenient means of directing anaesthetic gas to a patient.

The invention further has certain advantages in its application to all age groups, its light weight and ease of sterilization or disposal, and hence is especially suited for anaesthetic applications for head and neck procedures although it has application as well in any inhalation application.

The invention further permits control of ventilation at all times during inhalation and exhalation, for associated rebreathing bag and respiratory bag and accessibility thereto for monitoring of spontaneous ventilation.

The invention further contemplates an exhalation limb of a breathing system incorporating therein a tubing through which fresh gas inflows into the patient by directly depositing fresh gas in the mask region disposed over the face of the patient while conveying exhalated air down through the exhalation limb within which is disposed the small gas supplying tubing. As such bulk and multiple limbs are avoided.

The invention also assists in obviating anaesthetic pollution through exhausting exhalated anaesthetic gases by a patient at his face and thus overcomes prior art devices which leave anaesthesiologists and surgeons exposed to anaesthetic pollution. during medical procedures.

The invention therefore contemplates in an anaesthetic system, for application to nasal or oral regions of a patient, wherein the system includes an anaesthetic machine, a face mask and breathing bag the improvement being a new and improved conduit means connected between said face mask or endotracheal tube on the one hand and the breathing bag or ventilator and anaesthetic machine on the other hand, comprising,

a. a first flexible tubular member with connection means at either end, one of said means having a first and second passage means, said first passage means communicating through the interior of the tubular member with the other connector means;

b. a second flexible tubular member of smaller diameter generally disposed within the first tubular member, said second flexible member having one end communicating with the second passage means and its other end terminating in the vicinity of the other connector means to communicate thereat with the interior of the first flexible tubular member.

The embodiments of the present invention will now be described by way of example with reference to the accompanying drawings wherein:

FIG. 1 is an anaesthetic system incorporating one embodiment of the present invention.

FIGS. .2 and 3 are .alternative anaesthetic circuits of the present invention.

FIG. 4 is an exploded view of a portion of the flexible pipe of FIG. 1.

FIG. 5 is a perspective of a preferred embodiment of a pipe.

Referring to FIG. 1 an anaesthetic system 10 includes an anaesthetic machine 11, a breathing bag 12, and a patient mask 13. The breathing bag 12 is connected by a suitable bracket 14 to the anaesthetic machine in a conventional manner. A corrugated flexible longitudinal pipe 20 communicates the patient mask 13 at one end with the anaesthetic machine 11 and breathing bag 12 at the other. The corrugated flexible pipe 20 includes a first corrugated tubular member 22 preferably composed of corrugated flexible plastic with friction engaging connection means 24 and 26 on either end to communicate the breathing bag 12 with the patient mask 13. A second flexible tubular member is, for a substantial portion of its length, interiorly disposed and attached to the interior walls of the first flexible tubular member 22 by appropriate means. In the region of the connection 26 the second tubular member extends through the flexible wall of the tubular member 22 and its free end 29 communicates with the flexible connecting pipe 30 of the anaesthetic machine 11 by a fric tional connection means 31.

The smaller flexible tubular member 28 need not be corrugated but may be of any extruded plastic material which is commonly available. If both tubular members are composed of plastic (polyethelene) the smaller tubular member 28 can be affixed to the projecting ribs 25 of the first and larger tubularmember 22 by heat weld or solvent bond 33 or other similar means.

The flexible tubular member 28 is constructed of a light weight plastic, the diameter being uniformly approximately 22 mm. The pipe 20 is generally between 60 inches and inches in length preferably 72 inches with an internal volume of about 500 cc (approximately ml per foot of length). The patient end of the pipe 20 has an internal diameter of about 15 mm adapted to connect to a conventional mask angle, which those skilled in the art will know, or directly to an endotracheal tube (not shown). Controlled ventilation can easily be initiated by manual compression of the reservoir bag 12 or by attaching of a respirator, for example, that available under the trade mark Bird Mark VII, not shown, directly to the end of the pipe 20 as those skilled in the art will know.

The other embodiments of the invention have been found suitable for all patients including paediatric patients. For paediatric patients under 10 kilograms a smaller length pipe 20 was constructed, for example, about eight inches in length to which extensions could be attached. Preferably, however, the same configuration was used with a special bag mount as illustrated in FIG. 1 including a pop-off valve 34 designed and attached to the anaesthetic machine 11 in place of the present art attachments. This provides a fixed position for the reservoir bag 12, making it easily accessible for ventilating the patient with the bag 12 through the pipe 20 and the mask 13 to initiate anaesthesia. Further, the circuit can be retained in this position during a medical procedure without inconvenience to a surgeon.

Alternatively, referring to FIG. 2, in place of a blowoff valve 34, a reservoir bag 35 with an open end tail 36 partly occluded can be used. This arrangement has been found particularly useful for paediatric cases, because the open tail bag 35 provides less resistance to exhalation. On occasion, the configuration has been found to be more convenient for both adult and paediatric cases when a procedure requires that the anaesthetic machine be left attached to the fresh gag inflow line at 3l'to provide continuous anaesthesia.

Now the length of the pipe 20, if about 80 inches, allows the reservoir bag 12 to be visible and accessible under all conditions, during procedures, that is, for monitoring of respiration, for the initiation of controlled respiration, or referring to FIG. 3, for pollution control of exhaled gases from the occluded bag 35 directly into a hospital pollution control system 40 and its associated suction line 41, which conveys the exhaled gases exhausted from the occulsion 36 through the system 40 into the atmosphere and hence away from the operating theatre; anaesthetic pollution is thus avoided.

More particularly, in operation, referring to FIG. 1, the anaesthetic machine 11 provides nitrous oxide and oxygen to the free end 29 of the second tubular member 28 via connecting tube 30 and the gas emanates from the fixed end 31 of the tubular member 28 in the vicinity of the mask 13 (the internal frictional connection means 24) and thereby is transmitted immediately to the base of the patient mask 13 and hence to the patient (not shown). During exhalation of the patient, the respiratory gases travel from the patient mask 13 down the interior of the larger first tubular member 22 to the rebreathing bag 12.

Referring to FIG. and to greater detailed of a preferred embodiment of the invention (where the outer tube 22 is shown pulled away from either connectors 24 and 26 for clarity) the same includes a flexible smooth walled extruded plastic inner tube 28 having an outside diameter of about mm and an inside diameter of about 6 mm. The inner tube 28 makes communicating connection at one end to an inner coaxially positioned orifice 40 of the face mask connecting piece 24 composed of integrally moulded plastic having an outer annular surface 41 extending into an annularly tapered mating surface 42 for mating with the base of a face mask 13, to thereby define a larger passage region 43 for communicating with the face mask. The other end of the inner tube 28 terminatingly communicates with the smaller passage 46 of the tube passage connector 26. The tube passage connector 26 consists of integerally moulded plastic defining a larger through passage 47 and having a larger annular surface 48 extending, step-like, into a depending smaller outer annular surface 49, slightly tapered, which is adapted to mate with the conventional breathing tube bag 12 or modified stopper valve 34. An annular housing 50 of the connector 26 defines the smaller passage 46 and extends through the wall of the larger outer annular surface 47 to terminate, exterior of the surface 47, into a tapered nipple 51 while, to the interior of the annular surface 47, the passage 46 provides the communicating terminus for the flexible pipe 28. A larger diameter corrugated flexible wall moulded plastic tube 22 is spatially disposed circumferentially about the tube 28 and extends between the connectors 24 and 26 to terminate one end thereof on the annular surface 48 and on the other end on the annular surface 41 to thereby provide communication from passage 47 through the outer tube 22 to the passage 43.

The embodiments of the invention in which an exclusive property or privilege are claimed are defined as follows:

1. A two limb flexible pipe comprising:

a. a first flexible thin wall corrugated tubular member with connection means at either end, one of said means having a first and second passage means, first said passage means communicating through the interior of the tubular member with the other connector means;

b. a second flexible essentially thick wall tubular member of smaller diameter generally disposed within the first tubular member, said second flexible member having one end communicating with the second passage means and its other end terminating in the vicinity of the other connector means to communicate thereat with the interior of the first flexible tubular member.

2. The pipe of claim 1 wherein the first and second passage means are disposed within one connector means.

3. The pipe of claim 2 wherein the first flexible tubular member has an inner diameter of approximately twice the outer diameter of the second flexible tubular member.

4. The pipe of claim 3 wherein the first and second tubular members are composed of polyethylene.

5. The pipe of claim 1 further comprising means to constrain within said first flexible tubular member, the second flexible tubular member.

6. The pipe of claim 1 further comprising means con necting the second flexible tubular member to the inner walls of the first flexible tubular member.

7. The pipe of claim 6 wherein the connection means is a solvent bond.

Claims (6)

1. A two limb flexible pipe comprising: a. a first flexible thin wall corrugated tubular member with connection means at either end, one of said means having a first and second passage means, first said passage means communicating through the interior of the tubular member with the other connector means; b. a second flexible essentially thick wall tubular member of smaller diameter generally disposed within the first tubular member, said second flexible member having one end communicating with the second passage means and its other end terminating in the vicinity of the other connector means to communicate thereat with the interior of the first flexible tubular member.
2. The pipe of claim 1 wherein the first and second passage means are disposed within one connector means.
3. The pipe of claim 2 wherein the first flexible tubular member has an inner diameter of approximately twice the outer diameter of the second flexible tubular member.
4. The pipe of claim 3 wherein the first and second tubular members are composed of polyethylene.
5. The pipe of claim 1 further comprising means to constrain within said first flexible tubular member, the second flexible tubular member. 6. The pipe of claim 1 further comprising means connecting the second flexible tubular member to the inner walls of the first flexible tubular member.
7. The pipe of claim 6 wherein the connection means is a solvent bond.
US3856051A 1972-02-28 1973-01-18 Flexible tube device Expired - Lifetime US3856051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA135657 1972-02-28

Publications (1)

Publication Number Publication Date
US3856051A true US3856051A (en) 1974-12-24

Family

ID=4092451

Family Applications (1)

Application Number Title Priority Date Filing Date
US3856051A Expired - Lifetime US3856051A (en) 1972-02-28 1973-01-18 Flexible tube device

Country Status (1)

Country Link
US (1) US3856051A (en)

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188946A (en) * 1977-10-07 1980-02-19 Rayburn Robert L Controllable partial rebreathing anesthesia circuit and respiratory assist device
FR2435256A1 (en) * 1978-09-07 1980-04-04 Miller Donald flow control device for anesthesia by inhalation device
US4232667A (en) * 1978-09-05 1980-11-11 Jack Chalon Single limb breathing circuit assembly and absorber
US4245633A (en) * 1979-01-31 1981-01-20 Erceg Graham W PEEP providing circuit for anesthesia systems
US4249527A (en) * 1979-02-09 1981-02-10 Case Western Reserve University Continuous positive airway pressure administrating apparatus
US4275724A (en) * 1979-04-02 1981-06-30 Barry Behrstock Endotracheal intubation device
US4336798A (en) * 1980-10-06 1982-06-29 Anthony V. Beran Medical corrugated respiratory tube
FR2505658A1 (en) * 1981-05-18 1982-11-19 Terumo Corp breathing Circuit
US4367769A (en) * 1978-07-17 1983-01-11 James Bain Safety connector for flexible tube device
US4521038A (en) * 1983-05-20 1985-06-04 Respiratory Care, Inc. Safety connector for flexible tube device
EP0146224A1 (en) 1983-10-12 1985-06-26 Mitsuboshi Belting Ltd. Toothed belt drive
US4794921A (en) * 1980-12-18 1989-01-03 Lindkvist Allan Erik Method and apparatus for administering anesthetics
US4838258A (en) * 1987-10-26 1989-06-13 Gibeck-Dryden Corporation Gas sampling lumen for breathing system
US4967744A (en) * 1988-11-03 1990-11-06 Airoflex Medical, Inc. Flexible breathing circuit
US5269296A (en) * 1991-10-29 1993-12-14 Landis Robert M Nasal continuous positive airway pressure apparatus and method
US5284160A (en) * 1991-11-13 1994-02-08 Dryden Gale E Consolidated anesthesia circuit
US5477852A (en) * 1991-10-29 1995-12-26 Airways Ltd., Inc. Nasal positive airway pressure apparatus and method
US5657752A (en) * 1996-03-28 1997-08-19 Airways Associates Nasal positive airway pressure mask and method
EP0799927A2 (en) * 1996-04-05 1997-10-08 Naomoto Industry Co., Ltd. Iron
US5687715A (en) * 1991-10-29 1997-11-18 Airways Ltd Inc Nasal positive airway pressure apparatus and method
US5722391A (en) * 1996-11-12 1998-03-03 Par Medical, Inc. Anesthesia tube assembly
US5778872A (en) * 1996-11-18 1998-07-14 Medlis, Inc. Artificial ventilation system and methods of controlling carbon dioxide rebreathing
US6003511A (en) * 1996-11-18 1999-12-21 Medlis Corp. Respiratory circuit terminal for a unilimb respiratory device
US6033368A (en) * 1996-03-28 2000-03-07 Nitromed, Inc. Condensate colorimetric nitrogen oxide analyzer
EP0985430A2 (en) * 1998-09-07 2000-03-15 MAP Medizintechnik für Arzt und Patient GmbH & Co. KG Muffler for respiratory devices and inhalators
WO1999064096A3 (en) * 1998-06-05 2000-03-16 Rumeditec Gmbh Respiratory device for treating sleep apnoea
US6119686A (en) * 1996-03-29 2000-09-19 Datex-Ohmeda, Inc. Apnea detection for medical ventilator
US6125848A (en) * 1997-09-26 2000-10-03 Datex-Ohmeda, Inc. Distal volume monitoring
US6209539B1 (en) 1999-03-22 2001-04-03 Hudson Respiratory Care Inc. Asymmetric patient adapter for ventilator circuits
US6398266B1 (en) 1999-09-22 2002-06-04 Ballard Medical Products Collapse resistant popoid connector
US6439231B1 (en) 1996-11-18 2002-08-27 Medlis Corp. Artificial ventilation systems and components thereof, and methods for providing, assembling and utilizing same
USD466607S1 (en) 2001-08-27 2002-12-03 Kimberly-Clark Worldwide, Inc. Flexible connector
US6536428B1 (en) * 1999-08-10 2003-03-25 Fisher & Paykel Limited Ventilation system and/or breathing tube
USD473941S1 (en) 2001-08-27 2003-04-29 Kimberly-Clark Worldwide, Inc. Flexible connecting device
USD476731S1 (en) 2001-08-27 2003-07-01 Kimberly-Clark Worldwide, Inc. Bendable connector
US20030183232A1 (en) * 2001-09-24 2003-10-02 Fukunaga Atsuo F. Breathing systems with post-inspiratory valve fresh gas flow input, components for implementing same, and methods of use
USD486909S1 (en) 2001-08-27 2004-02-17 Kimberly-Clark Worldwide, Inc. Bendable connecting device
US20040079371A1 (en) * 2002-09-09 2004-04-29 Gray Nathan Lee Limb for breathing circuit
US20040081784A1 (en) * 2002-09-09 2004-04-29 Smith Daniel John Conduit and method of forming
US20040099268A1 (en) * 2000-05-10 2004-05-27 Fisher & Paykel Healthcare Limited Expiratory limb for a breathing circuit
US20040194781A1 (en) * 2001-09-24 2004-10-07 Fukunaga Atsuo F. Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
US20040226559A1 (en) * 2003-05-13 2004-11-18 Roger Daugherty Apparatus and method for humidification of inspired gases
US20050011573A1 (en) * 2003-07-14 2005-01-20 American Boa, Inc. Flexible liner air gap pipe
US20050039747A1 (en) * 2001-09-24 2005-02-24 Fukunaga Atsuo F. Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
US20050150505A1 (en) * 2004-01-09 2005-07-14 Burrow Kevin D. Adjustable length breathing circuit
US20050188990A1 (en) * 2004-02-12 2005-09-01 Fukunaga Atsuo F. Multifunctional integrated filter and breathing conduit
US20050223749A1 (en) * 2004-04-02 2005-10-13 Sung-Koog Oh Method of fabricating an optical fiber preform and drawing of an optical fiber
EP1621224A2 (en) 2001-09-24 2006-02-01 FUKUNAGA, Atsuo F. Breathing circuit having an adjustable volume and length
US20060231100A1 (en) * 2005-04-15 2006-10-19 Walker Garry J Supplied air respirator that has an adjustable length hose
EP1925331A2 (en) * 2000-02-18 2008-05-28 Map-Medizintechnologie GmbH Breathing gas hose assembly for supplying breathing gas
US20090078259A1 (en) * 2007-09-20 2009-03-26 Resmed Limited Retractable tube for cpap
US7753051B2 (en) 2005-03-18 2010-07-13 King Systems Corporation Face mask strap system
ES2363550A1 (en) * 2011-03-31 2011-08-08 Nicolas Anthony Costovici System for heated gas insufflation in patients.
US20160030698A1 (en) * 2014-07-31 2016-02-04 Dräger Medical GmbH Flexible, extensible, coaxial type tube system
US9279525B2 (en) 2011-11-04 2016-03-08 Blue Gentian, Llc Commercial hose
US9629975B1 (en) 2016-09-14 2017-04-25 Revolutionary Medical Devices, Inc. Ventilation mask
USD825740S1 (en) 2014-12-12 2018-08-14 Revolutionary Medical Devices Surgical mask

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101902A (en) * 1962-07-30 1963-08-27 Chipman Chemical Company Ltd Spraying apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101902A (en) * 1962-07-30 1963-08-27 Chipman Chemical Company Ltd Spraying apparatus

Cited By (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188946A (en) * 1977-10-07 1980-02-19 Rayburn Robert L Controllable partial rebreathing anesthesia circuit and respiratory assist device
US4320754A (en) * 1977-10-07 1982-03-23 Watson Robert L Controllable partial rebreathing anesthesia circuit and respiratory assist device
US4367769A (en) * 1978-07-17 1983-01-11 James Bain Safety connector for flexible tube device
US4232667A (en) * 1978-09-05 1980-11-11 Jack Chalon Single limb breathing circuit assembly and absorber
FR2435256A1 (en) * 1978-09-07 1980-04-04 Miller Donald flow control device for anesthesia by inhalation device
US4281652A (en) * 1978-09-07 1981-08-04 Miller Donald M Control member for anaesthesia apparatus
US4245633A (en) * 1979-01-31 1981-01-20 Erceg Graham W PEEP providing circuit for anesthesia systems
US4249527A (en) * 1979-02-09 1981-02-10 Case Western Reserve University Continuous positive airway pressure administrating apparatus
US4275724A (en) * 1979-04-02 1981-06-30 Barry Behrstock Endotracheal intubation device
US4336798A (en) * 1980-10-06 1982-06-29 Anthony V. Beran Medical corrugated respiratory tube
US4794921A (en) * 1980-12-18 1989-01-03 Lindkvist Allan Erik Method and apparatus for administering anesthetics
FR2505658A1 (en) * 1981-05-18 1982-11-19 Terumo Corp breathing Circuit
US4521038A (en) * 1983-05-20 1985-06-04 Respiratory Care, Inc. Safety connector for flexible tube device
EP0146224A1 (en) 1983-10-12 1985-06-26 Mitsuboshi Belting Ltd. Toothed belt drive
US4838258A (en) * 1987-10-26 1989-06-13 Gibeck-Dryden Corporation Gas sampling lumen for breathing system
US4967744A (en) * 1988-11-03 1990-11-06 Airoflex Medical, Inc. Flexible breathing circuit
US5477852A (en) * 1991-10-29 1995-12-26 Airways Ltd., Inc. Nasal positive airway pressure apparatus and method
US5687715A (en) * 1991-10-29 1997-11-18 Airways Ltd Inc Nasal positive airway pressure apparatus and method
US5269296A (en) * 1991-10-29 1993-12-14 Landis Robert M Nasal continuous positive airway pressure apparatus and method
US5284160A (en) * 1991-11-13 1994-02-08 Dryden Gale E Consolidated anesthesia circuit
US5657752A (en) * 1996-03-28 1997-08-19 Airways Associates Nasal positive airway pressure mask and method
US6033368A (en) * 1996-03-28 2000-03-07 Nitromed, Inc. Condensate colorimetric nitrogen oxide analyzer
US6419634B1 (en) 1996-03-28 2002-07-16 Nitromed, Inc. Condensate colorimetric nitrogen oxide analyzer
US6119686A (en) * 1996-03-29 2000-09-19 Datex-Ohmeda, Inc. Apnea detection for medical ventilator
EP0799927A3 (en) * 1996-04-05 1998-03-25 Naomoto Industry Co., Ltd. Iron
EP0799927A2 (en) * 1996-04-05 1997-10-08 Naomoto Industry Co., Ltd. Iron
US5722391A (en) * 1996-11-12 1998-03-03 Par Medical, Inc. Anesthesia tube assembly
US5894839A (en) * 1996-11-12 1999-04-20 Par Medical, Inc. Anesthesia tube assembly
EP1157714A2 (en) 1996-11-18 2001-11-28 Medlis Corp. Unilimb respiratory conduit
US6003511A (en) * 1996-11-18 1999-12-21 Medlis Corp. Respiratory circuit terminal for a unilimb respiratory device
US5983896A (en) * 1996-11-18 1999-11-16 Medlis Corporation Respiratory conduit for a unilimb respiratory device
US20050022828A1 (en) * 1996-11-18 2005-02-03 Fukunaga Atsuo F. Multilumen unilimb breathing circuit with detachable proximal fitting
US5983891A (en) * 1996-11-18 1999-11-16 Medlis Corp. Artificial ventilation methods for controlling carbon dioxide rebreathing
US5983894A (en) * 1996-11-18 1999-11-16 Medlis Corporation Filter for a unilimb rebreathing ventilator
US6564799B2 (en) 1996-11-18 2003-05-20 Medlis Corp. Multilumen filter
US6439231B1 (en) 1996-11-18 2002-08-27 Medlis Corp. Artificial ventilation systems and components thereof, and methods for providing, assembling and utilizing same
US5778872A (en) * 1996-11-18 1998-07-14 Medlis, Inc. Artificial ventilation system and methods of controlling carbon dioxide rebreathing
EP1155709A2 (en) 1996-11-18 2001-11-21 Medlis Corp. Artificial ventilation system and methods of controlling carbon dioxide rebreathing
US7418965B2 (en) 1996-11-18 2008-09-02 Medlis Corp. Multilumen unilimb breathing circuit with detachable proximal fitting
US6125848A (en) * 1997-09-26 2000-10-03 Datex-Ohmeda, Inc. Distal volume monitoring
WO1999064096A3 (en) * 1998-06-05 2000-03-16 Rumeditec Gmbh Respiratory device for treating sleep apnoea
EP0985430A3 (en) * 1998-09-07 2001-02-07 MAP Medizintechnik für Arzt und Patient GmbH & Co. KG Muffler for respiratory devices and inhalators
EP0985430A2 (en) * 1998-09-07 2000-03-15 MAP Medizintechnik für Arzt und Patient GmbH & Co. KG Muffler for respiratory devices and inhalators
US6209539B1 (en) 1999-03-22 2001-04-03 Hudson Respiratory Care Inc. Asymmetric patient adapter for ventilator circuits
US6536428B1 (en) * 1999-08-10 2003-03-25 Fisher & Paykel Limited Ventilation system and/or breathing tube
US6398266B1 (en) 1999-09-22 2002-06-04 Ballard Medical Products Collapse resistant popoid connector
US20080202512A1 (en) * 2000-02-18 2008-08-28 Map Medizin-Technologie Gmbh Respiratory gas hose system for supplying a respiratory gas
EP1925331A3 (en) * 2000-02-18 2010-03-17 Map-Medizintechnologie GmbH Respiratory gas hose system for supplying a respiratory gas
EP1925331A2 (en) * 2000-02-18 2008-05-28 Map-Medizintechnologie GmbH Breathing gas hose assembly for supplying breathing gas
EP2263731A3 (en) * 2000-02-18 2017-04-05 ResMed R&D Germany GmbH Respiratory gas hose system for supplying a respiratory gas
US20090078260A1 (en) * 2000-05-10 2009-03-26 Daniel John Smith expiratory limb for a breathing circuit
US9802020B2 (en) 2000-05-10 2017-10-31 Fisher & Paykel Healthcare Limited Expiratory limb for a breathing circuit
US20060162726A1 (en) * 2000-05-10 2006-07-27 Smith Daniel J Apparatus for reinforcing a breathing circuit component
US20040099268A1 (en) * 2000-05-10 2004-05-27 Fisher & Paykel Healthcare Limited Expiratory limb for a breathing circuit
US6769431B2 (en) * 2000-05-10 2004-08-03 Fisher & Paykel Healthcare Limited Expiratory limit for a breathing circuit
US7140366B2 (en) 2000-05-10 2006-11-28 Fisher & Payke Healthcare Limited Expiratory limb for a breathing circuit
USD473941S1 (en) 2001-08-27 2003-04-29 Kimberly-Clark Worldwide, Inc. Flexible connecting device
USD466607S1 (en) 2001-08-27 2002-12-03 Kimberly-Clark Worldwide, Inc. Flexible connector
USD486909S1 (en) 2001-08-27 2004-02-17 Kimberly-Clark Worldwide, Inc. Bendable connecting device
USD476731S1 (en) 2001-08-27 2003-07-01 Kimberly-Clark Worldwide, Inc. Bendable connector
US6874500B2 (en) 2001-09-24 2005-04-05 Atsuo F. Fukunaga Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
US7717109B2 (en) 2001-09-24 2010-05-18 F-Concepts Llc Breathing systems with post-inspiratory valve fresh gas flow input, components for implementing same, and methods of use
US20040194781A1 (en) * 2001-09-24 2004-10-07 Fukunaga Atsuo F. Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
US20050039747A1 (en) * 2001-09-24 2005-02-24 Fukunaga Atsuo F. Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
US7275541B2 (en) 2001-09-24 2007-10-02 F-Concepts Llc Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
US7261105B2 (en) 2001-09-24 2007-08-28 F-Concepts Llc Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
US20030183232A1 (en) * 2001-09-24 2003-10-02 Fukunaga Atsuo F. Breathing systems with post-inspiratory valve fresh gas flow input, components for implementing same, and methods of use
EP1621224A2 (en) 2001-09-24 2006-02-01 FUKUNAGA, Atsuo F. Breathing circuit having an adjustable volume and length
US7469719B2 (en) 2002-09-09 2008-12-30 Fisher & Paykel Healthcare Limited Limb for breathing circuit
US20060108066A1 (en) * 2002-09-09 2006-05-25 Smith Daniel J Conduit and method of forming
US9533117B2 (en) 2002-09-09 2017-01-03 Fisher & Paykel Healthcare Limited Limb for breathing circuit
US8980036B2 (en) 2002-09-09 2015-03-17 Fisher & Paykel Healthcare Limited Conduit and method of forming
US20090126817A1 (en) * 2002-09-09 2009-05-21 Nathan Lee Gray Limb for breathing circuit
US7291240B2 (en) 2002-09-09 2007-11-06 Fisher & Paykel Healthcare Limited Method of forming a conduit using a wound sacrificial layer
US9717874B2 (en) 2002-09-09 2017-08-01 Fisher & Paykel Healthcare Limited Conduit and method of forming
US20040081784A1 (en) * 2002-09-09 2004-04-29 Smith Daniel John Conduit and method of forming
US20040079371A1 (en) * 2002-09-09 2004-04-29 Gray Nathan Lee Limb for breathing circuit
US7468116B2 (en) 2002-09-09 2008-12-23 Fisher & Paykel Healthcare Limited Conduit and method of forming
US8905082B2 (en) 2002-09-09 2014-12-09 Fisher & Paykel Healthcare Limited Limb for breathing circuit
US20040226559A1 (en) * 2003-05-13 2004-11-18 Roger Daugherty Apparatus and method for humidification of inspired gases
US20060037609A1 (en) * 2003-05-13 2006-02-23 Roger Daugherty Apparatus and method for humidification of inspired gases
US20060037610A1 (en) * 2003-05-13 2006-02-23 Roger Daugherty Apparatus and method for humidification of inspired gases
US7007691B2 (en) 2003-05-13 2006-03-07 Roger Daugherty Apparatus and method for humidification of inspired gases
US20050011573A1 (en) * 2003-07-14 2005-01-20 American Boa, Inc. Flexible liner air gap pipe
US20050150505A1 (en) * 2004-01-09 2005-07-14 Burrow Kevin D. Adjustable length breathing circuit
US7178521B2 (en) 2004-01-09 2007-02-20 King Systems Corporation Adjustable length breathing circuit
US20050188990A1 (en) * 2004-02-12 2005-09-01 Fukunaga Atsuo F. Multifunctional integrated filter and breathing conduit
US20050223749A1 (en) * 2004-04-02 2005-10-13 Sung-Koog Oh Method of fabricating an optical fiber preform and drawing of an optical fiber
US7753051B2 (en) 2005-03-18 2010-07-13 King Systems Corporation Face mask strap system
US20060231100A1 (en) * 2005-04-15 2006-10-19 Walker Garry J Supplied air respirator that has an adjustable length hose
US20090078259A1 (en) * 2007-09-20 2009-03-26 Resmed Limited Retractable tube for cpap
US10034995B2 (en) 2007-09-20 2018-07-31 Resmed Limited Retractable tube for CPAP
US9095669B2 (en) 2011-03-31 2015-08-04 Nicolas Anthony Costovici System for heated gas insufflation in patients
WO2012131120A1 (en) * 2011-03-31 2012-10-04 Nicolas Anthony Costovici System for heated gas insufflation in patients
ES2363550A1 (en) * 2011-03-31 2011-08-08 Nicolas Anthony Costovici System for heated gas insufflation in patients.
US9279525B2 (en) 2011-11-04 2016-03-08 Blue Gentian, Llc Commercial hose
US9841127B2 (en) 2011-11-04 2017-12-12 Blue Gentian, Llc Garden hose device and method
CN105363106A (en) * 2014-07-31 2016-03-02 德尔格制造股份两合公司 Flexible, extensible, coaxial type tube system
US20160030698A1 (en) * 2014-07-31 2016-02-04 Dräger Medical GmbH Flexible, extensible, coaxial type tube system
USD825740S1 (en) 2014-12-12 2018-08-14 Revolutionary Medical Devices Surgical mask
US9629975B1 (en) 2016-09-14 2017-04-25 Revolutionary Medical Devices, Inc. Ventilation mask

Similar Documents

Publication Publication Date Title
US3556097A (en) Disposable anesthesia-breathing circuit unit
US3543751A (en) Oral airway with inflatable cuff
US3467092A (en) Anesthesia apparatus and resuscitator
US3262446A (en) Resuscitator
US3460541A (en) Endotracheal intubation tubes
US6253766B1 (en) Continuous positive airway pressure therapy device
US5134996A (en) Inspiration and expiration indicator for a suction catheter
US7059328B2 (en) Ventilation interface for sleep apnea therapy
US3964488A (en) Tracheal tube
US5279288A (en) Apparatus for high continuous flow augmentation of ventilation and method therefor
US5701886A (en) Treatment non-rebreather assembly and method for delivering oxygen and medication
US5882348A (en) Valved manifold
US2099127A (en) Pharyngeal bulb gasway
US6595215B2 (en) Ventilation interface for sleep apnea therapy
US3991762A (en) Aspirating device for patient ventilation apparatus
US3713440A (en) Filtration system
US4471776A (en) Static tracheostomy tube
US6478026B1 (en) Nasal ventilation interface
US4067328A (en) Lung ventilator
US4649913A (en) Tracheostomy tube assemblies
US5109839A (en) Inhalation apparatus
US3938551A (en) Anesthesia rebreathing apparatus
US4188946A (en) Controllable partial rebreathing anesthesia circuit and respiratory assist device
US3809079A (en) Resuscitator
US3865106A (en) Positive pressure breathing circuit