US3322126A - Endotracheal catheter - Google Patents

Endotracheal catheter Download PDF

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US3322126A
US3322126A US359132A US35913264A US3322126A US 3322126 A US3322126 A US 3322126A US 359132 A US359132 A US 359132A US 35913264 A US35913264 A US 35913264A US 3322126 A US3322126 A US 3322126A
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catheter
tube
trachea
main
patient
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US359132A
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Rusch Werner
Rusch Heinz
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Willy Ruesch GmbH
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Willy Ruesch GmbH
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0465—Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/0497—Tube stabilizer

Definitions

  • the invention relates to improvements in catheters and specifically to respiration catheters especially endotracheal catheters for use after tracheotomy.
  • the known catheters for anaesthesia or for respiration do not permit simultaneous extraction of any secretion which occurs. It was therefore necessary for secretion separation, to introduce a separate extraction catheter through the respiration catheter when the latter is in use. For this purpose however the equipment connected to the respiration catheter must be removed. After extraction of the secretion and the withdrawal of the extraction catheter the respiration catheter must be again connected with the anaesthesis or respiration device or with some other device.
  • the invention avoids this disadvantage and consists in the fact that a section of the tube of the respiration and/ or anaesthesia catheter disposed externally of the patient, is provided with an opening for introducing an extraction catheter, which opening is adapted to be closed.
  • the particular advantage of the invention lies in the fact that the respiration or anaesthesia or the like does not have to be interrupted for extracting a secretion.
  • the extraction catheter is fed forward through the inside of the catheter which has already been introduced, as far as the collected secretion, and then this latter is drawn off. If extraction is not necessary or is to be interrupted, after removal of the extraction catheter the opening is again closed.
  • This opening in the wall of the catheter tube can however also be used for introducing another catheter or the extraction catheter can be used for a different purpose, for example for introducing an additional anaesthetic or the like.
  • the catheter is particularly suitable as a combined tracheotomy catheter for example for polio myelitis affections or for tracheotomic accident cases, especially for continuous respiration.
  • a catheter can however equally well be employed as an endotracheal catheter or for nasal inspiration for anaesthesis purposes.
  • the opening in the catheter tube can be closed in a wide variety of ways, for example in the simplest case a piece of surgical plaster.
  • a cylindrical ring is displaceable on the catheter tube which can be slid over the opening when the extraction catheter is removed from or drawn out of the respiration catheter.
  • a tubular portion is associated with the edges of the opening for guiding the extraction catheter, the internal diameter of which is larger than the outer diameter of the extraction catheter.
  • Such an embodiment permits the introduction of the extraction catheter to be effected otherwise than in the immediate neighbourhood of the patient.
  • Such a tubular element is then closed for example by means of "Ice a plug.
  • Such a tubular member can also be formed in a tubular section which is fitted concentrically to the tube of the respiration catheter in the region of the opening. This embodiment has certain advantages in production.
  • a catheter holder disc is arranged on the respiration catheter tube. This disc may be displaced against a certain resistance on the catheter tube. It embodies openings for application of fastening means for example a binding or the like.
  • the resistance opposing displacement is obtained by the fact that the internal diameter in the bore of the catheter holder disc is so chosen that it is only of just the same size as the outer diameter of the catheter tube or is even slightly smaller.
  • the catheter can be produced from natural or synthetic rubber or mixtures thereof.
  • the catheter can also be formed as synthetic materials, for example polyvinyl chloride, :1 polyamide or a polyethylene. Individual parts of the instrument can be produced from different work materials.
  • FIG. 1 shows an embodiment of the invention as a general view
  • FIG. 2 shows a detail of a second embodiment of the invention.
  • the embodiment shown in the drawings embodies a catheter tube 1 which consists of a soft rubber and is bent at the end which is to be introduced into the body.
  • a catheter tube 1 which consists of a soft rubber and is bent at the end which is to be introduced into the body.
  • an inflatable holder section 2 At the inner end of the catheter tube 1 there is provided an inflatable holder section 2, which is connected through a pipe 3 with an operating bulb 4, the feed pipe 5 of which is adapted to be closed.
  • An opening 6 is provided at a portion of the tube of the respiration and/or anaesthesis catheter, disposed externally of the patient, which serves for introduction of an extraction catheter 7 into the catheter tube 1.
  • the extraction catheter 7 can for example consist of synthetic material or the like in order that it can be slid into the soft respiration catheter without undue frictional resistance, and possesses the stiffness necessary for it to be introduced.
  • the extraction catheter is inserted so far inwardly for example beyond the inner end of the respiration catheter, in order that it can extract any secretion which would disturb respiration or anaethesis.
  • a concentric ring 8 is arranged externally 0n the catheter tube 1 which can be displaced on the catheter tube against a frictional resistance and when the extrac tion catheter 7 is removed, it can be slipped to a position over the recess 6.
  • This ring 8 can be formed of the same material as the catheter tube 1, but in other embodiments of the invention it may consist of other materials, for example metal or the like.
  • a catheter holder disc 9 is displaceably mounted on the catheter tube 1, again against resistance.
  • the catheter holder disc 9 embodies recesses 10 for the entry of fastening means.
  • the catheter holder disc 9 can for example consist of a soft rubber.
  • the pipe 3 leading from the inflatable section 2 to the operating bulb 4 is inserted in the region of that section of the catheter which is inserted into the body of the patient under treatment.
  • Catheter holder discs are known in association with this type of respiration catheter, but these catheter holder discs in the known catheters were fixed connected with the catheter tube. If however the catheter holder disc is displaceable on the catheter tube against resistance, as in 3 the embodiment shown herein, the catheter holder disc can be better adapted to the body configuration of the patient.
  • a tubular section 11 is for-med in the catheter tube 1 in the region of the opening 6 having a tubular portion and an extension part 12 for receiving the extraction catheter 7.
  • This portion is of larger internal diameter than the outer diameter of the catheter 7 and is adapted to be closed by means of a plug when the'catheter 7 is not in place.
  • the latter includes a flexible tubular part of desired length and permits the introduction of the extraction catheter at some distance from the patient.
  • the tube 12 can however be also fastened directly to the edges of the opening 6 in the catheter tube 1, but such an embodiment is somewhat more diflicult to produce than if a tubular section 11 serves for fastening the tube 12.
  • An endotracheal catheter for insertion through and into the trachea of a patient after a tracheotomy and for remaining in the trachea, comprising: a main catheter tube having radially inflatable bulb means axially fixed to said main tube on the section insertable in the trachea for expansion into sealing engagement with the trachea, and control bulb means for selectively inflating said inflatable bulb means; support disc means for engagement with the outer portion of the patients neck and frictionally surrounding said main catheter tube for axial adjustment to define the main trachea tube section insertable in the trachea on one'side and the main trachea tube section outside of the patient on the opposite side; apertured means in said support disc means for securing said support disc means to the patient with holding means; aperture means in the side wall of said main catheter tube at said outside section for receiving a suction catheter to be inserted within said main catheter tube for removing fluids from the patient without interfering with the operation of said main catheter tube; and valve means for selectively opening said aperture means for receiving
  • the catheter of claim 1 including additional tube means secured in fluid communication to and extending outwardly from said aperture means and having an inner diameter larger than the outer diameter of the suction catheter for guiding the suction catheter into said main catheter tube and for providing a suction catheter, entrance opening spaced from the patient and said main catheter tube for selective closure by a plug.
  • valve means includes tubular sleeve means displaceably mounted on said main catheter tube for displacement between an open position exposing said aperture means and a' closed position sealing said aperture means; said additional tube means being fixedly secured to said sleeve means for alignment with said aperture means in the open position.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Description

May 30, 1967 INVENTOE Garner h em: Ru
mmew
ATTORNEYS United States Patent 3,322,126 ENDOTRACHEAL CATHETER Werner Riisch, Rommelshausen, Wurttemberg, and Heinz Riisch, Waiblingen, Wurttemberg, Germany, assignors to Firma Willy Rusch, Rommelshausen, Wurttemberg, Germany A Filed Apr. 13, 1964, Ser. No. 359,132
Claims priority, application Germany, Apr. 19, 1963, R 34,983 4 Claims. (Cl. 128351) The invention relates to improvements in catheters and specifically to respiration catheters especially endotracheal catheters for use after tracheotomy. The known catheters for anaesthesia or for respiration do not permit simultaneous extraction of any secretion which occurs. It was therefore necessary for secretion separation, to introduce a separate extraction catheter through the respiration catheter when the latter is in use. For this purpose however the equipment connected to the respiration catheter must be removed. After extraction of the secretion and the withdrawal of the extraction catheter the respiration catheter must be again connected with the anaesthesis or respiration device or with some other device. Apart from the fact that such manipulation is very complicated, the respiration can only be interrupted for a very short time in many cases in order not to endanger the life of the patient. This furthermore leads to the fact that the extraction of the secretion must be effected very quickly and the secretion can often only be removed inadequately. Insufiicient removal of secretion can however lead to disturbances in respiration or in anaesthesia.
The invention avoids this disadvantage and consists in the fact that a section of the tube of the respiration and/ or anaesthesia catheter disposed externally of the patient, is provided with an opening for introducing an extraction catheter, which opening is adapted to be closed.
The particular advantage of the invention lies in the fact that the respiration or anaesthesia or the like does not have to be interrupted for extracting a secretion. The extraction catheter is fed forward through the inside of the catheter which has already been introduced, as far as the collected secretion, and then this latter is drawn off. If extraction is not necessary or is to be interrupted, after removal of the extraction catheter the opening is again closed. This opening in the wall of the catheter tube can however also be used for introducing another catheter or the extraction catheter can be used for a different purpose, for example for introducing an additional anaesthetic or the like.
Owing to the possibility of being able to carry out simultaneously two working operations, the catheter is particularly suitable as a combined tracheotomy catheter for example for polio myelitis affections or for tracheotomic accident cases, especially for continuous respiration. Such a catheter can however equally well be employed as an endotracheal catheter or for nasal inspiration for anaesthesis purposes.
The opening in the catheter tube can be closed in a wide variety of ways, for example in the simplest case a piece of surgical plaster. In one embodiment of the invention however a cylindrical ring is displaceable on the catheter tube which can be slid over the opening when the extraction catheter is removed from or drawn out of the respiration catheter.
In one constructional example of the invention a tubular portion is associated with the edges of the opening for guiding the extraction catheter, the internal diameter of which is larger than the outer diameter of the extraction catheter. Such an embodiment permits the introduction of the extraction catheter to be effected otherwise than in the immediate neighbourhood of the patient. Such a tubular element is then closed for example by means of "Ice a plug. Such a tubular member can also be formed in a tubular section which is fitted concentrically to the tube of the respiration catheter in the region of the opening. This embodiment has certain advantages in production.
Moreover a catheter holder disc is arranged on the respiration catheter tube. This disc may be displaced against a certain resistance on the catheter tube. It embodies openings for application of fastening means for example a binding or the like.
If the catheter is produced from synthetic resin or from rubber the resistance opposing displacement is obtained by the fact that the internal diameter in the bore of the catheter holder disc is so chosen that it is only of just the same size as the outer diameter of the catheter tube or is even slightly smaller.
The catheter can be produced from natural or synthetic rubber or mixtures thereof. The catheter can also be formed as synthetic materials, for example polyvinyl chloride, :1 polyamide or a polyethylene. Individual parts of the instrument can be produced from different work materials.
Further features of the invention will be apparent from the following description of one constructional form of the invention in conjunction with the following claims and the accompanying drawings. The individual features can be used on their own or several of them may be combined in one embodiment.
FIG. 1 shows an embodiment of the invention as a general view, and
FIG. 2 shows a detail of a second embodiment of the invention.
The embodiment shown in the drawings embodies a catheter tube 1 which consists of a soft rubber and is bent at the end which is to be introduced into the body. At the inner end of the catheter tube 1 there is provided an inflatable holder section 2, which is connected through a pipe 3 with an operating bulb 4, the feed pipe 5 of which is adapted to be closed.
An opening 6 is provided at a portion of the tube of the respiration and/or anaesthesis catheter, disposed externally of the patient, which serves for introduction of an extraction catheter 7 into the catheter tube 1. The extraction catheter 7 can for example consist of synthetic material or the like in order that it can be slid into the soft respiration catheter without undue frictional resistance, and possesses the stiffness necessary for it to be introduced. The extraction catheter is inserted so far inwardly for example beyond the inner end of the respiration catheter, in order that it can extract any secretion which would disturb respiration or anaethesis.
A concentric ring 8 is arranged externally 0n the catheter tube 1 which can be displaced on the catheter tube against a frictional resistance and when the extrac tion catheter 7 is removed, it can be slipped to a position over the recess 6. This ring 8 can be formed of the same material as the catheter tube 1, but in other embodiments of the invention it may consist of other materials, for example metal or the like.
Also a catheter holder disc 9 is displaceably mounted on the catheter tube 1, again against resistance. The catheter holder disc 9 embodies recesses 10 for the entry of fastening means. The catheter holder disc 9 can for example consist of a soft rubber.
The pipe 3 leading from the inflatable section 2 to the operating bulb 4 is inserted in the region of that section of the catheter which is inserted into the body of the patient under treatment.
Catheter holder discs are known in association with this type of respiration catheter, but these catheter holder discs in the known catheters were fixed connected with the catheter tube. If however the catheter holder disc is displaceable on the catheter tube against resistance, as in 3 the embodiment shown herein, the catheter holder disc can be better adapted to the body configuration of the patient.
In another embodiment of the invention, shown in part 7 in FIG. 2, a tubular section 11 is for-med in the catheter tube 1 in the region of the opening 6 having a tubular portion and an extension part 12 for receiving the extraction catheter 7. This portion is of larger internal diameter than the outer diameter of the catheter 7 and is adapted to be closed by means of a plug when the'catheter 7 is not in place. The latter includes a flexible tubular part of desired length and permits the introduction of the extraction catheter at some distance from the patient. The tube 12 can however be also fastened directly to the edges of the opening 6 in the catheter tube 1, but such an embodiment is somewhat more diflicult to produce than if a tubular section 11 serves for fastening the tube 12.
What I claim is:
1. An endotracheal catheter for insertion through and into the trachea of a patient after a tracheotomy and for remaining in the trachea, comprising: a main catheter tube having radially inflatable bulb means axially fixed to said main tube on the section insertable in the trachea for expansion into sealing engagement with the trachea, and control bulb means for selectively inflating said inflatable bulb means; support disc means for engagement with the outer portion of the patients neck and frictionally surrounding said main catheter tube for axial adjustment to define the main trachea tube section insertable in the trachea on one'side and the main trachea tube section outside of the patient on the opposite side; apertured means in said support disc means for securing said support disc means to the patient with holding means; aperture means in the side wall of said main catheter tube at said outside section for receiving a suction catheter to be inserted within said main catheter tube for removing fluids from the patient without interfering with the operation of said main catheter tube; and valve means for selectively opening said aperture means for receiving the suction catheter and closing said aperture means for preventtion sealing said aperture means.
3. The catheter of claim 1, including additional tube means secured in fluid communication to and extending outwardly from said aperture means and having an inner diameter larger than the outer diameter of the suction catheter for guiding the suction catheter into said main catheter tube and for providing a suction catheter, entrance opening spaced from the patient and said main catheter tube for selective closure by a plug.
4. The catheter of claim 3, wherein said valve means includes tubular sleeve means displaceably mounted on said main catheter tube for displacement between an open position exposing said aperture means and a' closed position sealing said aperture means; said additional tube means being fixedly secured to said sleeve means for alignment with said aperture means in the open position.
References Cited UNITED STATES PATENTS 2,912,982 11/1959 Barsky '128351 3,006,337 10/1961 Aguado 128-351 X 3,039,469 6/1962 Fountain 128351. 3,175,557 3/1965 Hammond 128351 3,211,152 10/1965 Stern 128351.
FOREIGN PATENTS 837,757 6/1960 Great Britain.
OTHER REFERENCES Tracheotomy and New Tracheal Tube, Surgery, vol. 29, No. 2, p. 263.
RICHARD A. GAUDET, Primary Examiner. DALTON L. TRULUCK," Examiner.

Claims (1)

1. AN ENDOTRACHEAL CATHETER FOR INSERTION THROUGH AND INTO THE TRACHEA OF A PATIENT AFTER A TRACHEOTOMY AND FOR REMAINING IN THE TRACHEA, COMPRISING: A MAIN CATHETER TUBE HAVING RADIALLY INFLATABLE BULB MEANS AXIALLY FIXED TO SAID MAIN TUBE ON THE SECTION INSERTABLE IN THE TRACHEA FOR EXPANSION INTO SEALING ENGAGEMENT WITH THE TRACHEA AND CONTROL BULB MEANS FOR SELECTIVELY INFLATING SAID INFLATABLE BULB MEANS; SUPPORT DISC MEANS FOR ENGAGEMENT WITH THE OUTER PORTION OF THE PATIENT''S NECK AND FRICTIONALLY SURROUNDING SAID MAIN CATHETER TUBE FOR AXIAL ADJUSTMENT TO DEFINE THE MAIN TRACHEA TUBE SECTION INSERTABLE IN THE TRACHEA ON ONE SIDE AND THE MAIN TRACHEA TUBE SECTION OUTSIDE OF THE PATIENT ON THE OPPOSITE SIDE; APERTURED MEANS IN SAID SUPPORT DISC MEANS FOR SECURING SAID SUPPORT DISC MEANS TO THE PATIENT WITH HOLDING MEANS; APERTURE MEANS IN THE SIDE WALL OF SAID MAIN CATHETER TUBE AT SAID OUTSIDE SECTION FOR RECEIVING A SUCTION CATHETER TO BE INSERTED WITHIN SAID MAIN CATHETER TUBE FOR REMOVING FLUIDS FROM THE PATIENT WITHOUT INTERFERING WITH THE OPERATION OF SAID MAIN CATHETER TUBE; AND VALVE MEANS FOR SELECTIVELY OPENING SAID APERTURE MEANS FOR RECEIVING THE SUCTION CATHETER AND CLOSING SAID APERTURE MEANS FOR PREVENTING INTERFERENCE WITH THE OPERATION OF SAID MAIN CATHETER WHEN THE SUCTION CATHETER IS REMOVED.
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Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659611A (en) * 1969-12-15 1972-05-02 Dow Corning Tracheal tube seal
US3683908A (en) * 1969-10-20 1972-08-15 Tantrimudalige Anthony Don Mic Apparatus for sealing the oesophagus and providing artificial respiration
US3693624A (en) * 1969-10-02 1972-09-26 Donald P Shiley Tracheotomy tube
US3794026A (en) * 1970-07-29 1974-02-26 H Jacobs Ventilating apparatus embodying selective volume or pressure operation and catheter means for use therewith
USD243412S (en) * 1975-08-25 1977-02-15 Shiley Laboratories, Inc. Pressure relief valve for a low pressure cuffed tracheostomy tube
US4033353A (en) * 1975-10-16 1977-07-05 International Paper Company Tracheostomy tube
US4090518A (en) * 1975-08-25 1978-05-23 Elam James O Esophago-pharyngeal airway
US4156428A (en) * 1974-08-26 1979-05-29 Henkin Melvyn Lane Tracheal tube with expandable cuff system
WO1980000997A1 (en) * 1978-10-30 1980-05-15 Novametrix Med Syst Inc Combined respirator and catheter suction adapter
US4275724A (en) * 1979-04-02 1981-06-30 Barry Behrstock Endotracheal intubation device
US4327720A (en) * 1979-01-22 1982-05-04 Bronson Paul A Esophageal-endotracheal airway
US4346702A (en) * 1980-05-01 1982-08-31 Yukio Kubota Slip joint of endotracheal tube
US4378796A (en) * 1981-04-17 1983-04-05 Porges Societe Anonyme Endo-tracheal or tracheotomic tube with shield for anaesthesia
EP0092618A1 (en) * 1982-04-27 1983-11-02 Patrick Albert Wallace Esophageal-endotracheal airway
US4453545A (en) * 1981-05-07 1984-06-12 Hiroshi Inoue Endotracheal tube with movable endobronchial blocker for one-lung anesthesia
US4607635A (en) * 1984-09-27 1986-08-26 Heyden Eugene L Apparatus for intubation
US4633864A (en) * 1984-10-22 1987-01-06 Dacomed Corporation Speaking endotracheal tube
US4637389A (en) * 1985-04-08 1987-01-20 Heyden Eugene L Tubular device for intubation
US4865586A (en) * 1987-09-21 1989-09-12 Martha Hedberg Suction stylet for endotracheal intubation
US4967743A (en) * 1987-03-11 1990-11-06 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US5029580A (en) * 1990-07-18 1991-07-09 Ballard Medical Products Medical aspirating apparatus with multi-lumen catheter tube and methods
US5065754A (en) * 1990-06-06 1991-11-19 Ballard Medical Products Aspirating catheter tube inserter
US5107829A (en) * 1987-03-11 1992-04-28 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US5133345A (en) * 1987-03-11 1992-07-28 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US5215522A (en) * 1984-07-23 1993-06-01 Ballard Medical Products Single use medical aspirating device and method
US5265593A (en) * 1991-05-02 1993-11-30 Odland Rick M Balloon-tipped catheter ventilation system and method for using same having rhythmically inflated and deflated balloon
US5277177A (en) * 1984-07-23 1994-01-11 Ballard Medical Products Single use medical aspirating device and method
US5285778A (en) * 1991-04-19 1994-02-15 Mackin Robert A Endotracheal tube wih fibers optic illumination and viewing and auxiliary tube
US5694922A (en) * 1994-05-18 1997-12-09 Ballard Medical Products Swivel tube connections with hermetic seals
WO2001002042A1 (en) 1999-07-02 2001-01-11 Pulmonx Methods, systems, and kits for lung volume reduction
US6494203B1 (en) 1994-08-19 2002-12-17 Ballard Medical Products Medical aspirating/ventilating closed system improvements and methods
US20030051733A1 (en) * 2001-09-10 2003-03-20 Pulmonx Method and apparatus for endobronchial diagnosis
US20040073191A1 (en) * 2000-10-27 2004-04-15 Pulmonx Methods and devices for obstructing and aspirating lung tissue segments
US20040087991A1 (en) * 2002-10-31 2004-05-06 Louis Woo Dilators
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US20070142742A1 (en) * 2005-07-13 2007-06-21 Pulmonx Methods and systems for segmental lung diagnostics
US20080221703A1 (en) * 2007-03-09 2008-09-11 Pulmonx Loading a device for a pulmonary implant
US20080221582A1 (en) * 2007-03-05 2008-09-11 Pulmonx Pulmonary stent removal device
US20100036361A1 (en) * 2008-06-20 2010-02-11 Pulmonx System and method for delivering multiple implants into lung passageways
US7883471B2 (en) 2001-09-10 2011-02-08 Pulmonx Corporation Minimally invasive determination of collateral ventilation in lungs
US20110152678A1 (en) * 2005-01-20 2011-06-23 Pulmonx Corporation Methods and devices for passive residual lung volume reduction and functional lung volume expansion
CN102872518A (en) * 2012-09-14 2013-01-16 广州军区广州总医院 Tracheotomy oxygen pipe with fixing device
US8523782B2 (en) 2005-12-07 2013-09-03 Pulmonx Corporation Minimally invasive determination of collateral ventilation in lungs
US8876791B2 (en) 2005-02-25 2014-11-04 Pulmonx Corporation Collateral pathway treatment using agent entrained by aspiration flow current
US9050094B2 (en) 2007-03-12 2015-06-09 Pulmonx Corporation Methods and devices for passive residual lung volume reduction and functional lung volume expansion
US9687621B2 (en) 2012-07-06 2017-06-27 The Regents Of The University Of California Dual lumen endobronchial tube device
US11883029B2 (en) 2005-01-20 2024-01-30 Pulmonx Corporation Methods and devices for passive residual lung volume reduction and functional lung volume expansion

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US2912982A (en) * 1958-06-04 1959-11-17 Arthur J Barsky Endotracheal tube adapter
GB837757A (en) * 1958-09-16 1960-06-15 Brook Airways Ltd Resuscitator
US3006337A (en) * 1959-08-28 1961-10-31 Aguado Edward Airway for artificial respiration
US3039469A (en) * 1960-05-09 1962-06-19 Josephine G Fountain Direct suction tracheotomy tube
US3175557A (en) * 1963-05-17 1965-03-30 Daniel O Hammond Tracheal cannula
US3211152A (en) * 1961-11-15 1965-10-12 Ernest A Stern Safety endotracheal tube cuff

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Publication number Priority date Publication date Assignee Title
US2912982A (en) * 1958-06-04 1959-11-17 Arthur J Barsky Endotracheal tube adapter
GB837757A (en) * 1958-09-16 1960-06-15 Brook Airways Ltd Resuscitator
US3006337A (en) * 1959-08-28 1961-10-31 Aguado Edward Airway for artificial respiration
US3039469A (en) * 1960-05-09 1962-06-19 Josephine G Fountain Direct suction tracheotomy tube
US3211152A (en) * 1961-11-15 1965-10-12 Ernest A Stern Safety endotracheal tube cuff
US3175557A (en) * 1963-05-17 1965-03-30 Daniel O Hammond Tracheal cannula

Cited By (82)

* Cited by examiner, † Cited by third party
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US3693624A (en) * 1969-10-02 1972-09-26 Donald P Shiley Tracheotomy tube
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AT244495B (en) 1966-01-10
GB1055026A (en) 1967-01-11

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