US2175726A - Catheter for bronchospirometry - Google Patents

Catheter for bronchospirometry Download PDF

Info

Publication number
US2175726A
US2175726A US24249038A US2175726A US 2175726 A US2175726 A US 2175726A US 24249038 A US24249038 A US 24249038A US 2175726 A US2175726 A US 2175726A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
catheter
structure
tubular
adapted
collars
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
Paul W Gebauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
American Anode Inc
Original Assignee
American Anode Inc
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

    • 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/10Balloon catheters
    • A61M25/1011Multiple balloon catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/08Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/097Devices for facilitating collection of breath or for directing breath into or through measuring devices

Description

Oct. 10, 1939. P. w. GEBAUER 2,175,726

CATHETER FOR BRONCHOSPIROMETRY Filed Nov. 26, 1938 IIIIIIl/IIIIIIIIIIIII) e 10, m9 I 2,175,726

UNITED STATES PATENT orrlcs CATHETER FOR BRONCHOSPIROMZETRY Paul W. Gebaucr, Cleveland, Ohio, assignor to American Anode Inc., Akron, Ohio, a corporation of Delaware 7 Application November 26, 19:8, Serial No. 242,490 '1 Claims. (01. 128-349) This invention relates to surgical accessories vided in the wall of the tubular structure III at and particularly to a special catheter for use in a point adjacent the distal end which will be broncho-spirometry and for other purposes. positioned within the bronchus of one lung, as by The invention aims to provide a compact leaving the entire end of the catheter open as multi-tubed structure adapted to be readily inillustrated. A second opening i2 is provided in 5 serted in the respiratory passages of a patient, the wall of the tubular structure III at a point with minimum difliculty and discomfort, for conproximal to the first opening and in a position ducting gaseous materials between each of the adapted to communicate with the other lung. lungs, individually, and respective, separate The lumen of the tubular portion In is divided spirometers, and further aims to provide simple into two separate fluid conduits l3 and H by but assuredly effective means for occluding the means of a septum l5 extending from the proxrespiratory passages at appropriate points for imal end of the tubular portion ID to a point l6 sealing the lungs from each other and from the between the two openings H and 12 at which outside atmosphere, whereby the functional capoint the septum l5 curves toward and is at- 15 pacity of each lung may be determined sepatached to the wall 01' the tube to form a closed 15 rately and simultaneously. end for one of the conduits IS. The two fluid The invention may be readily understood by conduits l3 and I4 diverge at the proximal and referring to the accompanying drawing, of of the tubular portion and terminate in separate which-- tubular extensions I1 and 18, respectively,

Fig. 1 is an elevation showing a catheter emadapted to be connected to any appropriate fluid 2o bodying the principles of the present inventions conductors such as conductors leading to sepain a preferred form; rate spirometers.

Fig. 2 is a vertical section taken on line 2-2 For sealing the respiratory passages about the of Fig. 1; inserted catheter, two inflatablecollars I9 and Fig. 3 is a vertical section taken on line 3-3 20, are provided encircling the tubular structure 5 of Fig. 1; In at longitudinally spaced-apart positions, one Fig. 4 is a vertical section taken on line 4-4 collar l9 being located adjacent the distal end of Fig. 1; of the catheter between the two openings H and Fig. 5 is a vertical section taken on line 5-5 12, and the second inflatable collar 20 bein of Fig, 1; cated proximal to the opening I2 so that the 30 Fig. 6 is a horizontal section-taken on line 6-6 opening I2 is located between the two inflatable of Fig. 5; collars while the opening I! is distal to both Fig. '7 is a fragmentary elevation of a catheter collars.

generally similar to the catheter of Figs. 1-6, For inflating the collars I! and 20, a relatively but embody a curved distal end; and small inflating duct 2| is provided extending 5 Fig. 8 is a diagrammatic view illustrating the longitudinally through the walls of the tubular manner in which the prwent catheter is emstructure Hi from a point adjacent the proximal ployed in carrying out diflerential bronchoend to both inflatable collars Iland 20, comspirometry upon a patien municating openings 22, 23 being provided 40 The invention contemplates a catheter adapted through the walls of the tubular structure Ill 40 to be inserted in the respiratory passages of a underneath the inflatable collars i9, 2!], respecpatient and having two longitudinal passagetively, for conducting inflating fluid thereto. ways or conduits with separate openings adapted At the proximal end of the catheter, the inflating to communicate respectively with the two lungs, duct 2| diverges from the tubular structure and and also includes two separate sealing means so terminates in a tubular extension 24 adapted to 45 positioned on the catheter as to seal the lungs be connected to any suitable apparatus for infrom each other and from the outside atmosjecting fluid under pressure. phere and force breathing through the respec- For facilitating entrance of the catheter into tive conduits of the catheter. the main bronchus of alung, the distal end of Such a catheter as illustrated in the drawing the tubular structure l0 desirably is preformed 59 comprises a relat'vely long tubular structure 10 with a permanently-set arcuate configuration as adapted to extend from a point outside the indicated at 25 in the modified form of the mouth of a patient, through the mouth and catheter illustrated in Fig. '7, the catheter being trachea, to a point at least within the main otherwise similar in construction to the catheter bronchus Of one lung- One Opening H is proillustrated in Figs. 1-6. The most satisfactory 55 arcuate conflguration appears to be obtained by gently curving the distal end of the catheter from a point distal to the opening H so that the distal tip of the catheter is directed at an angle of approximately 60 to the axis of the rest 01' the tubular portion I0, although no particular curvature is essential.

In order to facilitate ready passage of the catheter through the tortuous channels of the mouth, trachea and bronchus with minimum diiflculty and discomfort, the entire catheter preferably is made essentially of a flexible soft rubber or analogous composition, although it is to be understood that other materials, such as conventional fabric, metal or wire reenforcemerits, may be associated with the essentially rubber structure so long as the essential flexibility of the rubber is not destroyed. The catheter desirably has a one-piece, unitary structure to avoid all possibility of parts becoming disconnected or separated while in use, although satisfactory catheters obviously may be fabricated by assembling separate pre-i'ormed parts of rubber or other flexible material and cementing or otherwise mounting the parts in proper relation. Procedures for manufacturing such structures are well known in the rubber industry and form no part of the present invention.

To use the present catheter for carrying out differential broncho-spirometry, the catheter is passed through the respiratory passages of a patient, as indicated in Fig. 8, until the distal end of the catheter including the inflatable collar I9 is positioned with the main bronchus 3! of one lung, usually the left lung. The second inflatable collar 20 will then be positioned within the trachea 32. Using any suitable device, air or other inflating fluid is injected through the tube 24 and duct 2| until the collars l9 and 20 have been inflated sufliciently to seal the bronchus and trachea, respectively, about the catheter, the inflated collars conforming readily to irregularities in the passageway walls to effect an assuredly effective seal which is maintained as by clamping the tube 21. When the collars have been inflated, the patient, of course, breathes through the catheter, the left lung receiving and discharging gases through the opening II and the communicating tubes l4 and I8, while the ri ht lung receives and discharges gases through the opening i2 and the communicating tubes I3 and IT. The tubular extensions I '1 and iii are connected to separate spirometers which measure characteristic factors concerning the intake and discharge gases and afford a basis for calculating the functional capacity or eiflciency of each lung separately and simultaneously. The spirometer itself of course is a known apparatus.

The present invention is especially useful in examinations conducted as a preliminary to treating a patient suffering from pulmonary tuberculosis when it is vitally important to know accurately the relative functional efficiencies of the two lungs in order that the character and extent of treatment which may safely be undertaken on either lung can be reliably judged. The catheter obviously is capable of other uses however.

Numerous modifications and variations in details of structure and materials embodied in the catheter for broncho spirometry as hereinabove described may be made without departing from the spirit and scope of the invention as defined by the appended claims.

I claim:

1. A surgical accessory comprising a tubular structure of elongated configuration having at least three longitudinal conduits each separate from the others, a plurality of inflatable collars encircling the tubular structure at longitudinally spaced-apart positions, each of said inflatable collars communicating with at least one of said conduits for receiving inflating fluid therefrom, the walls of said tubular structure having a plurality of openings therein at positions removed from the positions of the inflatable collars, each of said openings communicating with one of said conduits and at least two of said conduits communicating with different openings, the proximal ends of said conduits being adapted to be connected with appropriate fluid conductors, said surgical accessory being flexible and comprising a rubbery composition as its principal constituent.

2. A surgical accessory comprising a tubular structure adapted to be inserted in a body passage, an inflatable collar encircling the tubular structure at a position adjacent the distal end thereof, a second inflatable collar encircling the tubular structure at a position proximal to the first collar, means for inflating the collars including an inflating duct extending longitudinally through the said structure and communicating with at least one of the inflatable collars for conproximal end of the tubular structure and terminating in separate tubular extensions adapted to be connected to appropriate fluid conduits, said accessory having an essentially unitary structure embodying rubber as the principal ingredient and being flexible throughout.

3. A catheter for differential broncho-spirometry adapted to be inserted in the respiratory passages of a patient for conducting gaseous materials to and from the lungs separately and simultaneously, said catheter comprising a tubular structure adapted to extend through the trachea to a point within the bronchus of a lung, means for sealing the said bronchus about the tubular structure, separate means for sealing the trachea about the tubular structure, the walls of said tubular structure having one opening distal to both sealing means and a second opening between the two sealing means, said tubular structure having two separate longitudinal conduits communicating respectively with the aforesaid two openings, said catheter having a unitary structure and being flexible throughout.

4. A catheter for differential broncho-spirometry adapted to be inserted in the respiratory passages of a patient for conducting gaseous materials to and from the lungs separately and simultaneously, said catheter comprising a tubular structure adapted to extend through the trachea to a point within the bronchus of one lung, an inflatable portion adapted to seal the said bronchus, a second inflatable portion adapted to seal the trachea, means for inflating the two inflatable portions, the walls of said tubular structure having one opening distal to both inflatable portions and a second opening between the two inflatable portions, said tubular structure having ing respectively the proximal ends of said conduits and of said the distal end tioned within the said bronchus, a second inflatposition proximal to will be positioned within the trachea when the two separate longitudinal conduits communicating respectively withthe aforesaid two openings, the proximal ends of said conduits being adapted to be connected with appropriate fluid conductors, said catheter being flexible throughout.

5. A catheter for differential broncho-spiromev try adapted to be inserted in the respiratory passages of a patient for conducting gaseous materials to and from the lungs separately and simultaneously, said catheter comprising a tubular structure adapted to extend at least from the mouth of a patient to a point within the main bronchus of one lung, cling the tubular structure at a position adjacent the distal end thereof and adapted to be positioned within the said bronchus, a second inflatable collar encircling the tubular structure at a position proximal to the first collar and which will be positioned within the trachea when the first collar is positioned within the bronchus of one lung, said collars being adapted to seal the respective respiratory passages when inflated, inflating duct means for conducting inflating fluid to said collars, the walls of said tubular structure having one opening distal to both collars and a second opening between the two collars, a septum dividing the lumen of said tubular structure into two separate longitudinal conduits communicatwith the aforesaid two openings,

inflating duct means being adapted to be connected to appropriate fluid conductors, said catheter embodying rubber as the principal constituentand being flexible throughout. 6. A catheter for differential broncho-spirometry adapted to be inserted in the respir D sages of a patient for conducting gaseous materials to and from the lungs separately and simultaneously, said catheter comprising a tubular structure adapted to extend at least from'the mouth of a patient to a point within the main bronchus of one lung, an cling the tubular structure at a position adjacent thereof and adapted to be posiable-collar encircling the tubular structure at a the first collar and which first collar is positioned within the bronchus of one lung, said collars being adapted when in flated to seal the respestive respiratory passages, a single ,inflating duct extending longitudinally through a wall of said structure and communicatan'inflatable collar encirinflatable collar encirflexible throughout.

of said collars for conducting in-v flating fluid to the collars, the walls of said tubular structure having one opening distal to both collars and a second opening between the two coling with both lars, a septum dividing the lumen of said tubular structure into two separate longitudinal conduits communicating respectively with the aforesaid openings, said conduits and said inflating duct diverging at the proximal end of the catheter and terminating in three separate tubular extensions adapted to be connected with appropriate fluid conductors, said catheter having an essentially integral unitary structure embodying rubher as the principal constituent and being flexible throughout.

7. A catheter for differential broncho-spirometry adapted to be inserted in the respiraitory passages of a patient for conducting gaseous materials to and from the lungs separately and simultaneously, said catheter comprising a tubular structure adapted to extend at least from the mouth of a patient to a point within the main bronchus of one lung, the distal end of said structure having a pre-formed and permanently-set arcuate configuration for facilitating entrance into the said bronchus, an inflatable collar encircling the tubular structure at a position adjacent the distal end thereof and adapted to be positioned within the said bronchus, a second inflatable collar encircling the tubular structure at a position proximal to the first collar and which will be positioned within the trachea when the first collar is positioned within the bronchus of one lung, said collars being adapted when inflated to seal the respective respiratory passages, a single inflating duct extending longitudinally through a wall of said structure and communicat collars, a septum dividing the lumen of said tubular structure into two separate longitudinal con- ,duits communicating respectively with the aforesaid two openings, said conduits and said inflating duct diverging at the proximal end of the catheter and terminating in three separate tubular extensions adapted to be connected with appropriate fluid conductors, said catheter having an es-- sentially integral unitary structure embodying rubber as the principal constituent and being Pm. w. among;-

US2175726A 1938-11-26 1938-11-26 Catheter for bronchospirometry Expired - Lifetime US2175726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2175726A US2175726A (en) 1938-11-26 1938-11-26 Catheter for bronchospirometry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2175726A US2175726A (en) 1938-11-26 1938-11-26 Catheter for bronchospirometry

Publications (1)

Publication Number Publication Date
US2175726A true US2175726A (en) 1939-10-10

Family

ID=22914971

Family Applications (1)

Application Number Title Priority Date Filing Date
US2175726A Expired - Lifetime US2175726A (en) 1938-11-26 1938-11-26 Catheter for bronchospirometry

Country Status (1)

Country Link
US (1) US2175726A (en)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460473A (en) * 1945-12-17 1949-02-01 Smith Minton Larkin Catheter
US2642874A (en) * 1951-06-04 1953-06-23 Wilmer B Keeling Instrument for treating prostate glands
US2693191A (en) * 1951-07-16 1954-11-02 Davol Rubber Co Incontinence urinal balloon plug
US2883986A (en) * 1957-09-24 1959-04-28 Davol Rubber Co Endotracheal cuff
US3123067A (en) * 1964-03-03 Process and apparatus for determining the presence
DE1166977B (en) * 1959-11-07 1964-04-02 Auergesellschaft Gmbh Device for the connection of ventilation, anesthesia and similar devices to the respiratory tract of patients
US3417744A (en) * 1966-03-15 1968-12-24 Mishkin Sidney Catheter for selective bronchography
US3915173A (en) * 1974-07-08 1975-10-28 Ansur Inc Intubation device for the inhalation of gasses
US4230108A (en) * 1979-03-13 1980-10-28 Young Sharon L Apparatus and method for sealing esophageal entrance to trachea above and below
US4233984A (en) * 1978-06-30 1980-11-18 Walling Peter T Respiratory ventilating device
US4248221A (en) * 1977-08-26 1981-02-03 Latex Products (Proprietary) Limited Endobronchial tubes
US4300550A (en) * 1978-04-26 1981-11-17 Becton, Dickinson And Company Suction and oxygenation catheter
US4451252A (en) * 1981-07-24 1984-05-29 Vas-Cath Of Canada Limited Cannula
WO1984004043A1 (en) * 1983-04-15 1984-10-25 Baxter Travenol Lab A double lumen cannula and its method of manufacture
US4509514A (en) * 1981-12-16 1985-04-09 Brain Archibald Ian Jeremy Artificial airway device
US4568329A (en) * 1982-03-08 1986-02-04 Mahurkar Sakharam D Double lumen catheter
US4583968A (en) * 1983-10-03 1986-04-22 Mahurkar Sakharam D Smooth bore double lumen catheter
US4623327A (en) * 1985-02-12 1986-11-18 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4675004A (en) * 1985-04-16 1987-06-23 Quinton Instrument Company Dual-lumen fistula needle
US4692141A (en) * 1982-03-08 1987-09-08 Mahurkar Sakharam D Double lumen catheter
US4693704A (en) * 1982-10-12 1987-09-15 Sumitomo Bakelite Company Limited Cervical canal catheter
WO1988006045A2 (en) * 1987-02-21 1988-08-25 Bissendorf Peptide Gmbh Device for the removal of active substances locally applied against solid tumors
US4770652A (en) * 1985-02-12 1988-09-13 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4808155A (en) * 1986-02-27 1989-02-28 Mahurkar Sakharam D Simple double lumen catheter
US4976261A (en) * 1989-04-03 1990-12-11 Advanced Pulmonary Technologies, Inc. Endotracheal tube with inflatable cuffs
US5040531A (en) * 1987-02-02 1991-08-20 Mallinckrodt Medical, Inc. Laser resistant ventilating device
US5065757A (en) * 1987-09-28 1991-11-19 Dragisic Branislav M Shielding to protect material from laser light
US5197951A (en) * 1983-12-14 1993-03-30 Mahurkar Sakharam D Simple double lumen catheter
US5221255A (en) * 1990-01-10 1993-06-22 Mahurkar Sakharam D Reinforced multiple lumen catheter
US5348536A (en) * 1993-08-02 1994-09-20 Quinton Instrument Company Coextruded catheter and method of forming
US5374245A (en) * 1990-01-10 1994-12-20 Mahurkar; Sakharam D. Reinforced multiple-lumen catheter and apparatus and method for making the same
US5397307A (en) * 1993-12-07 1995-03-14 Schneider (Usa) Inc. Drug delivery PTCA catheter and method for drug delivery
US5403291A (en) * 1993-08-02 1995-04-04 Quinton Instrument Company Catheter with elongated side holes
US5554119A (en) * 1991-08-02 1996-09-10 Scimed Drug delivery catheter with manifold
US5556390A (en) * 1995-03-07 1996-09-17 Quinton Instrument Company Catheter with oval or elliptical lumens
US5690642A (en) * 1996-01-18 1997-11-25 Cook Incorporated Rapid exchange stent delivery balloon catheter
US5797869A (en) * 1987-12-22 1998-08-25 Vas-Cath Incorporated Multiple lumen catheter
US6550475B1 (en) * 1998-03-11 2003-04-22 Oldfield Family Holdings Pty. Limited Endotracheal tube for selective bronchial occlusion
US20050228339A1 (en) * 2004-04-12 2005-10-13 The Trustees Of The University Of Pennsylvania Multi-lumen catheter
US20080135052A1 (en) * 2005-06-10 2008-06-12 Bussieres Jean Right double lumen endobronchial tube
US8157919B2 (en) 2009-02-06 2012-04-17 Endoclear, Llc Methods for removing debris from medical tubes
US8381345B2 (en) 2009-02-06 2013-02-26 Endoclear, Llc Devices for cleaning endotracheal tubes
US9333321B2 (en) 2004-04-12 2016-05-10 Aegis Medical Technologies, Llc Multi-lumen catheter
US9445714B2 (en) 2010-03-29 2016-09-20 Endoclear Llc Endotracheal tube coupling adapters
US9492634B2 (en) 2006-03-31 2016-11-15 C. R. Bard, Inc. Catheter including arcuate transition region
US9687621B2 (en) 2012-07-06 2017-06-27 The Regents Of The University Of California Dual lumen endobronchial tube device

Cited By (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123067A (en) * 1964-03-03 Process and apparatus for determining the presence
US2460473A (en) * 1945-12-17 1949-02-01 Smith Minton Larkin Catheter
US2642874A (en) * 1951-06-04 1953-06-23 Wilmer B Keeling Instrument for treating prostate glands
US2693191A (en) * 1951-07-16 1954-11-02 Davol Rubber Co Incontinence urinal balloon plug
US2883986A (en) * 1957-09-24 1959-04-28 Davol Rubber Co Endotracheal cuff
DE1166977B (en) * 1959-11-07 1964-04-02 Auergesellschaft Gmbh Device for the connection of ventilation, anesthesia and similar devices to the respiratory tract of patients
US3417744A (en) * 1966-03-15 1968-12-24 Mishkin Sidney Catheter for selective bronchography
US3915173A (en) * 1974-07-08 1975-10-28 Ansur Inc Intubation device for the inhalation of gasses
US4248221A (en) * 1977-08-26 1981-02-03 Latex Products (Proprietary) Limited Endobronchial tubes
US4300550A (en) * 1978-04-26 1981-11-17 Becton, Dickinson And Company Suction and oxygenation catheter
US4233984A (en) * 1978-06-30 1980-11-18 Walling Peter T Respiratory ventilating device
US4230108A (en) * 1979-03-13 1980-10-28 Young Sharon L Apparatus and method for sealing esophageal entrance to trachea above and below
US4451252A (en) * 1981-07-24 1984-05-29 Vas-Cath Of Canada Limited Cannula
US4509514A (en) * 1981-12-16 1985-04-09 Brain Archibald Ian Jeremy Artificial airway device
US4692141A (en) * 1982-03-08 1987-09-08 Mahurkar Sakharam D Double lumen catheter
US4568329A (en) * 1982-03-08 1986-02-04 Mahurkar Sakharam D Double lumen catheter
US4693704A (en) * 1982-10-12 1987-09-15 Sumitomo Bakelite Company Limited Cervical canal catheter
WO1984004043A1 (en) * 1983-04-15 1984-10-25 Baxter Travenol Lab A double lumen cannula and its method of manufacture
US4583968A (en) * 1983-10-03 1986-04-22 Mahurkar Sakharam D Smooth bore double lumen catheter
US5197951A (en) * 1983-12-14 1993-03-30 Mahurkar Sakharam D Simple double lumen catheter
US4770652A (en) * 1985-02-12 1988-09-13 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4623327A (en) * 1985-02-12 1986-11-18 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4675004A (en) * 1985-04-16 1987-06-23 Quinton Instrument Company Dual-lumen fistula needle
US4808155A (en) * 1986-02-27 1989-02-28 Mahurkar Sakharam D Simple double lumen catheter
US5040531A (en) * 1987-02-02 1991-08-20 Mallinckrodt Medical, Inc. Laser resistant ventilating device
WO1988006045A3 (en) * 1987-02-21 1988-11-17 Bissendorf Peptide Gmbh Device for the removal of active substances locally applied against solid tumors
WO1988006045A2 (en) * 1987-02-21 1988-08-25 Bissendorf Peptide Gmbh Device for the removal of active substances locally applied against solid tumors
US5065757A (en) * 1987-09-28 1991-11-19 Dragisic Branislav M Shielding to protect material from laser light
US7229429B2 (en) 1987-12-22 2007-06-12 Vas-Cath Inc. Multiple lumen catheter
US6206849B1 (en) 1987-12-22 2001-03-27 Vas-Cath Incorporated Multiple lumen catheter
US5797869A (en) * 1987-12-22 1998-08-25 Vas-Cath Incorporated Multiple lumen catheter
US20010044594A1 (en) * 1987-12-22 2001-11-22 Vas-Cath Incorporated Multiple lumen catheter
US4976261A (en) * 1989-04-03 1990-12-11 Advanced Pulmonary Technologies, Inc. Endotracheal tube with inflatable cuffs
US5374245A (en) * 1990-01-10 1994-12-20 Mahurkar; Sakharam D. Reinforced multiple-lumen catheter and apparatus and method for making the same
US5221255A (en) * 1990-01-10 1993-06-22 Mahurkar Sakharam D Reinforced multiple lumen catheter
US5716340A (en) * 1991-08-02 1998-02-10 Scimed Life Systems, Inc. Blood perfusion catheter
US5554119A (en) * 1991-08-02 1996-09-10 Scimed Drug delivery catheter with manifold
US5558642A (en) * 1991-08-02 1996-09-24 Scimed Life Systems, Inc. Drug delivery catheter
US5489278A (en) * 1993-08-02 1996-02-06 Quinton Instrument Company Catheter with elongated side openings
US5403291A (en) * 1993-08-02 1995-04-04 Quinton Instrument Company Catheter with elongated side holes
US5348536A (en) * 1993-08-02 1994-09-20 Quinton Instrument Company Coextruded catheter and method of forming
US5397307A (en) * 1993-12-07 1995-03-14 Schneider (Usa) Inc. Drug delivery PTCA catheter and method for drug delivery
US5556390A (en) * 1995-03-07 1996-09-17 Quinton Instrument Company Catheter with oval or elliptical lumens
US5690642A (en) * 1996-01-18 1997-11-25 Cook Incorporated Rapid exchange stent delivery balloon catheter
US6550475B1 (en) * 1998-03-11 2003-04-22 Oldfield Family Holdings Pty. Limited Endotracheal tube for selective bronchial occlusion
US8517978B2 (en) 2004-04-12 2013-08-27 Aegis Medical Technologies, Llc Multi-lumen catheter
US20050228339A1 (en) * 2004-04-12 2005-10-13 The Trustees Of The University Of Pennsylvania Multi-lumen catheter
US7569029B2 (en) 2004-04-12 2009-08-04 Clark Timothy W I Multi-lumen catheter
US20090247927A1 (en) * 2004-04-12 2009-10-01 Clark Timothy W I Multi-lumen catheter
US9333321B2 (en) 2004-04-12 2016-05-10 Aegis Medical Technologies, Llc Multi-lumen catheter
US20080135052A1 (en) * 2005-06-10 2008-06-12 Bussieres Jean Right double lumen endobronchial tube
US9492634B2 (en) 2006-03-31 2016-11-15 C. R. Bard, Inc. Catheter including arcuate transition region
US8381345B2 (en) 2009-02-06 2013-02-26 Endoclear, Llc Devices for cleaning endotracheal tubes
US8468637B2 (en) 2009-02-06 2013-06-25 Endoclear Llc Mechanically-actuated endotracheal tube cleaning device
US8458844B2 (en) 2009-02-06 2013-06-11 Endoclear, Llc Medical tube cleaning apparatus
US8534287B2 (en) 2009-02-06 2013-09-17 Endoclear, Llc Methods for tracheostomy visualization
US8601633B2 (en) 2009-02-06 2013-12-10 Endoclear Llc Cleaning of body-inserted medical tubes
US9095286B2 (en) 2009-02-06 2015-08-04 Endoclear Llc Body-inserted tube cleaning
US9332891B2 (en) 2009-02-06 2016-05-10 Endoclear Llc Tracheostomy visualization
US8382908B2 (en) 2009-02-06 2013-02-26 Endoclear, Llc Methods for cleaning endotracheal tubes
US9386907B2 (en) 2009-02-06 2016-07-12 Endoclear Llc Visualization systems and methods
US9398837B2 (en) 2009-02-06 2016-07-26 Endoclear Llc Methods for confirming placement of endotracheal tubes
US9907624B2 (en) 2009-02-06 2018-03-06 Endoclear Llc Body-inserted tube cleaning with suction
US8157919B2 (en) 2009-02-06 2012-04-17 Endoclear, Llc Methods for removing debris from medical tubes
US9579012B2 (en) 2009-02-06 2017-02-28 Endoclear Llc Visualized endotracheal tube placement systems
US9855111B2 (en) 2009-02-06 2018-01-02 Endoclear Llc Methods of removing biofilm from endotracheal tubes
US9962233B2 (en) 2009-02-06 2018-05-08 Endoclear Llc Body-inserted tube cleaning
US9445714B2 (en) 2010-03-29 2016-09-20 Endoclear Llc Endotracheal tube coupling adapters
US9687621B2 (en) 2012-07-06 2017-06-27 The Regents Of The University Of California Dual lumen endobronchial tube device

Similar Documents

Publication Publication Date Title
US3599642A (en) Endotracheal tubes
ROBERTSHAW Low resistance double-lumen endobronchial tubes
US3363629A (en) Endotracheal catheter
US3683908A (en) Apparatus for sealing the oesophagus and providing artificial respiration
US3046988A (en) Esophageal nasogastric tube
Knowlson et al. The pressures exerted on the trachea by endotracheal inflatable cuffs
US5067497A (en) Intubation device with adjustable suction means above the cuff
US4198970A (en) Airway for drainage of the nasopharynx
US5499625A (en) Esophageal-tracheal double lumen airway
US6386199B1 (en) Perilaryngeal oral airway
US3948273A (en) Endotracheal tube having a non-sticking inner surface
US3402717A (en) Endotracheal tube with valved balloon having a removable inflation stylet insert therein
US4256099A (en) Two-tube resuscitation system
US4351330A (en) Emergency internal defibrillation
US3731691A (en) Endotracheal tube and connector unit
US4979505A (en) Tracheal tube
US6240922B1 (en) Laryngeal mask assemblies
US4700700A (en) Endotracheal tube
US5201310A (en) Medico-surgical tube with sealing cuff and a suction lumen at the top of the cuff
US5509408A (en) Neonatal resuscitation device
US20070068530A1 (en) Secretion clearing ventilation catheter and airway management system
US5749357A (en) Malleable introducer
US5988167A (en) Foam cuff for laryngeal mask airway
US7040322B2 (en) Combination artificial airway device and esophageal obturator
US20050205097A1 (en) Medical devices and methods of selectively and alternately isolating bronchi or lungs