WO1997037702A1 - Bronchoaspiration tube having soft and hard portions - Google Patents

Bronchoaspiration tube having soft and hard portions Download PDF

Info

Publication number
WO1997037702A1
WO1997037702A1 PCT/US1997/005686 US9705686W WO9737702A1 WO 1997037702 A1 WO1997037702 A1 WO 1997037702A1 US 9705686 W US9705686 W US 9705686W WO 9737702 A1 WO9737702 A1 WO 9737702A1
Authority
WO
WIPO (PCT)
Prior art keywords
bronchoaspiration
tubular element
tube
soft
bronchoaspiration tube
Prior art date
Application number
PCT/US1997/005686
Other languages
French (fr)
Inventor
Lucio Gibertoni
Paolo Bergamaschi
Original Assignee
Mallinckrodt Medical, 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
Application filed by Mallinckrodt Medical, Inc. filed Critical Mallinckrodt Medical, Inc.
Priority to EP97921107A priority Critical patent/EP0902695A4/en
Priority to JP09536391A priority patent/JP2000508553A/en
Priority to CA002251759A priority patent/CA2251759C/en
Publication of WO1997037702A1 publication Critical patent/WO1997037702A1/en

Links

Classifications

    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
    • 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. mouth-to-mouth respiration; 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/008—Strength or flexibility characteristics of the catheter tip
    • A61M2025/0081—Soft tip
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0009—Making of catheters or other medical or surgical tubes

Definitions

  • the present invention relates to a bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract.
  • Bronchoaspiration tubes are conventionally used to remove secretions from the tracheal tubes and from the upper portion of the respiratory tract, such as the trachea and the bronchi, and usually make contact with the tissues of the respiratory tract.
  • the tube must be made of a relatively soft tubular element, so as to minimize the risk of traumas; however, at the same time a rigid tube facilitates cleaning operations and in any case increases maneuverability. Tubes with different hardness values are currently commercially available, since each manufacturer has chosen a material by taking into account the costs, benefits, and advantages offered by said material.
  • the aim of the invention is to solve the above problem by providing a bronchoaspiration tube which allows to optimize performance as regards both maneuverability and nontraumaticity.
  • a particular object of the invention is to provide a bronchoaspiration tube which, while combining the typical advantages of rigid materials and of soft materials, can be manufactured with the continuous production technologies required to limit production costs.
  • a particular object of the invention is to provide a bronchoaspiration tube which, by virtue of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
  • Another object of the present invention is to provide a bronchoaspiration tube which can be produced by continuous extrusion and has costs fully similar to those of conventional products, which however do not have the same functional advantages.
  • a bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract, according to the invention, characterized in that it comprises a tubular element provided with at least two portions or regions having different hardness values.
  • figure 1 is a front view of the tubular element of the tube according to the present invention
  • figure 2 is a sectional view of the tubular element, illustrating the end portion thereof made of soft material.
  • the bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract is constituted by a tubular element, generally designated by the reference numeral 1, which is provided by continuous extrusion of two different materials, so as to obtain, on the tubular element, a first portion or region 2 made of relatively soft material and a second portion in the region 3 made of relatively rigid material.
  • the portion 2, which is made of relatively soft material corresponds to the penetration end, so that the tube, despite being rigid because the second portion 3 is rigid and therefore allows easy maneuverability and easier cleaning, has a tip made of soft material, so that absolute nontraumaticity with respect to the various tissues is ensured.
  • the invention achieves the intended aim and objects; in particular, the fact is stressed that the combination of regions having different hardness values, obtained from an extrusion with two materials, allows to provide a bronchoaspiration tube having considerably improved characteristics with respect to the solutions of the prior art, which necessarily had to resort to compromise choices.
  • the materials employed, so long as they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements .

Abstract

A Bronchoaspiration tube for removing secretions from the tracheal tubes and from the upper portion of the respiratory tract, including a tubular element (1) provided with at least two portions or regions (2, 3) having different hardness values.

Description

BRONCHOASPIRATION TUBE HAVING SOFT AND HARD PORTIONS
Technical Field
The present invention relates to a bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract. Background Art
Bronchoaspiration tubes are conventionally used to remove secretions from the tracheal tubes and from the upper portion of the respiratory tract, such as the trachea and the bronchi, and usually make contact with the tissues of the respiratory tract.
Because of the delicate and sensitive nature of the tissues with which the bronchoaspiration tube makes contact, the tube must be made of a relatively soft tubular element, so as to minimize the risk of traumas; however, at the same time a rigid tube facilitates cleaning operations and in any case increases maneuverability. Tubes with different hardness values are currently commercially available, since each manufacturer has chosen a material by taking into account the costs, benefits, and advantages offered by said material.
Accordingly, it is evident that the choice of the material currently in use is the result of a compromise between the two contrasting requirements, i.e., the need to have a relatively rigid tubular element in order to have easy maneuverability and the need to have instead a soft tubular element to prevent traumas due to contact with the involved tissues. DISCLOSURE OF THE INVENTION
The aim of the invention is to solve the above problem by providing a bronchoaspiration tube which allows to optimize performance as regards both maneuverability and nontraumaticity. Within the scope of this aim, a particular object of the invention is to provide a bronchoaspiration tube which, while combining the typical advantages of rigid materials and of soft materials, can be manufactured with the continuous production technologies required to limit production costs.
Within the scope of this aim, a particular object of the invention is to provide a bronchoaspiration tube which, by virtue of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
Another object of the present invention is to provide a bronchoaspiration tube which can be produced by continuous extrusion and has costs fully similar to those of conventional products, which however do not have the same functional advantages.
This aim, these objects, and others which will become apparent hereinafter are achieved by a bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract, according to the invention, characterized in that it comprises a tubular element provided with at least two portions or regions having different hardness values. BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the invention will become apparent from the following detailed description of a bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract, illustrated only by way of non-limitative example in the accompanying drawings, wherein: figure 1 is a front view of the tubular element of the tube according to the present invention; figure 2 is a sectional view of the tubular element, illustrating the end portion thereof made of soft material. WAYS OF CARRYING OUT THE INVENTION With reference to the above figures, the bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract is constituted by a tubular element, generally designated by the reference numeral 1, which is provided by continuous extrusion of two different materials, so as to obtain, on the tubular element, a first portion or region 2 made of relatively soft material and a second portion in the region 3 made of relatively rigid material.
Advantageously, the portion 2, which is made of relatively soft material, corresponds to the penetration end, so that the tube, despite being rigid because the second portion 3 is rigid and therefore allows easy maneuverability and easier cleaning, has a tip made of soft material, so that absolute nontraumaticity with respect to the various tissues is ensured.
The t ubul ar e l ement 1 i s obt ai ned by c ont i nuo u s ext rusio n o f two di f f e re nt and mut ua l l y c hemi c a l ly compatible elements , so that it is possible to provide the tubular element with the softer region at the tip without thereby substantially altering production methods.
From the above description it is therefore evident that the invention achieves the intended aim and objects; in particular, the fact is stressed that the combination of regions having different hardness values, obtained from an extrusion with two materials, allows to provide a bronchoaspiration tube having considerably improved characteristics with respect to the solutions of the prior art, which necessarily had to resort to compromise choices. In practice, the materials employed, so long as they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements .

Claims

1. A bronchoaspiration tube for removing secretions from tracheal tubes and from the upper portion of the respiratory tract, characterized in that it comprises a tubular element provided with at least two portions or regions having different hardness values.
2. A bronchoaspiration tube according to claim 1, characterized in that said tubular element is formed by continuous extrusion of two materials.
3. A bronchoaspiration tube according to claim 1, characterized in that it comprises a soft region and a relatively rigid region rigidly coupled to each other.
4. A bronchoaspiration tube according to claim 3, characterized in that said relatively soft region is provided at the insertion ends of said tubular element.
PCT/US1997/005686 1996-04-11 1997-04-04 Bronchoaspiration tube having soft and hard portions WO1997037702A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97921107A EP0902695A4 (en) 1996-04-11 1997-04-04 Bronchoaspiration tube having soft and hard portions
JP09536391A JP2000508553A (en) 1996-04-11 1997-04-04 Bronchial suction tube with soft and hard parts
CA002251759A CA2251759C (en) 1996-04-11 1997-04-04 Bronchoaspiration tube having soft and hard portions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI96U000277 1996-04-11
IT96MI000277 IT240586Y1 (en) 1996-04-11 1996-04-11 BRONCHO ASPIRATION STRUCTURE FOR THE REMOVAL OF EXECUTIONS FROM TRACHEAL TUBES AND THE UPPER ROUTE OF THE ROUTES

Publications (1)

Publication Number Publication Date
WO1997037702A1 true WO1997037702A1 (en) 1997-10-16

Family

ID=11373265

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/005686 WO1997037702A1 (en) 1996-04-11 1997-04-04 Bronchoaspiration tube having soft and hard portions

Country Status (5)

Country Link
EP (1) EP0902695A4 (en)
JP (1) JP2000508553A (en)
CA (1) CA2251759C (en)
IT (1) IT240586Y1 (en)
WO (1) WO1997037702A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6634360B1 (en) * 1998-09-02 2003-10-21 Flodin Bjoern Device for supplying inhalation gas to and removing exhalation gas from a patient
WO2005049123A1 (en) * 2003-11-17 2005-06-02 Cook Critical Care Incorporated Airway exchange catheter
EP1923090A2 (en) 2003-05-06 2008-05-21 Mallinckrodt Inc. Improved multiple cannula systems and methods
US20120145160A1 (en) * 2005-05-27 2012-06-14 The Laryngeal Mask Company Ltd. Laryngeal mask airway device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402684A (en) * 1981-09-16 1983-09-06 The Kendall Company Cannula with soft tip
US4596563A (en) * 1983-06-09 1986-06-24 Cordis Corporation Thin-walled multi-layered catheter having a fuseless tip
US4753765A (en) * 1984-03-08 1988-06-28 Cordis Corporation Method of making a catheter having a fuseless tip
US4781704A (en) * 1987-02-24 1988-11-01 Entech, Inc. Feeding tube assembly with collapsible outlet connector
US4801297A (en) * 1984-06-01 1989-01-31 Edward Weck Incorporated Catheter having slit tip
US4898591A (en) * 1988-08-09 1990-02-06 Mallinckrodt, Inc. Nylon-PEBA copolymer catheter
US4981477A (en) * 1988-04-16 1991-01-01 Rudolf Schon Catheter for introduction into the trachea and the bronchial system
US5088991A (en) * 1988-07-14 1992-02-18 Novoste Corporation Fuseless soft tip angiographic catheter
US5334171A (en) * 1991-07-23 1994-08-02 Intermed, Inc. Flexible, noncollapsible catheter tube with hard and soft regions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330497A (en) * 1981-01-19 1982-05-18 Sherwood Medical Industries Inc. Method of making grooved plastic medical tubing
US5085649A (en) * 1990-11-21 1992-02-04 Flynn Vincent J Torque controlled tubing

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402684A (en) * 1981-09-16 1983-09-06 The Kendall Company Cannula with soft tip
US4596563A (en) * 1983-06-09 1986-06-24 Cordis Corporation Thin-walled multi-layered catheter having a fuseless tip
US4753765A (en) * 1984-03-08 1988-06-28 Cordis Corporation Method of making a catheter having a fuseless tip
US4801297A (en) * 1984-06-01 1989-01-31 Edward Weck Incorporated Catheter having slit tip
US4781704A (en) * 1987-02-24 1988-11-01 Entech, Inc. Feeding tube assembly with collapsible outlet connector
US4981477A (en) * 1988-04-16 1991-01-01 Rudolf Schon Catheter for introduction into the trachea and the bronchial system
US5088991A (en) * 1988-07-14 1992-02-18 Novoste Corporation Fuseless soft tip angiographic catheter
US4898591A (en) * 1988-08-09 1990-02-06 Mallinckrodt, Inc. Nylon-PEBA copolymer catheter
US5334171A (en) * 1991-07-23 1994-08-02 Intermed, Inc. Flexible, noncollapsible catheter tube with hard and soft regions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0902695A4 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6634360B1 (en) * 1998-09-02 2003-10-21 Flodin Bjoern Device for supplying inhalation gas to and removing exhalation gas from a patient
EP1923090A2 (en) 2003-05-06 2008-05-21 Mallinckrodt Inc. Improved multiple cannula systems and methods
US7681576B2 (en) 2003-05-06 2010-03-23 Mallinckrodt Inc. Multiple cannula systems and methods
EP2322239A1 (en) 2003-05-06 2011-05-18 Mallinckrodt Inc. Improved multiple cannula systems and methods
US8151798B2 (en) 2003-05-06 2012-04-10 Tyco Healthcare Group Lp Multiple cannula systems and methods
US8844535B2 (en) 2003-05-06 2014-09-30 Covidien Lp Multiple cannula systems and methods
WO2005049123A1 (en) * 2003-11-17 2005-06-02 Cook Critical Care Incorporated Airway exchange catheter
US20120145160A1 (en) * 2005-05-27 2012-06-14 The Laryngeal Mask Company Ltd. Laryngeal mask airway device

Also Published As

Publication number Publication date
ITMI960277U1 (en) 1997-10-11
CA2251759C (en) 2009-07-07
EP0902695A1 (en) 1999-03-24
CA2251759A1 (en) 1997-10-16
JP2000508553A (en) 2000-07-11
IT240586Y1 (en) 2001-04-02
EP0902695A4 (en) 2000-04-26

Similar Documents

Publication Publication Date Title
USD380487S (en) Eyeglass temple piece
US6450948B1 (en) Deflecting tip for surgical cannula
CA2048002A1 (en) Reinforced multiple lumen catheter
CA2163478A1 (en) Locking catheter system
EP0931562A3 (en) Low profile dilatation catheter
DE69927474D1 (en) A guidewire
FI922723A (en) HAIRDA SOCKERKARAMELLEN UTAN SOCKER OCH FOERFARANDE FOER FRAMSTAELLNING AVDESSA
CA2168009A1 (en) Triple lumen catheter
EP1334744A3 (en) Apparatus for catheterization access
AU5537696A (en) Improved devices for removing fibrin sheaths from catheters
CA2170361A1 (en) Dilatation catheter with eccentric balloon
CA2320377A1 (en) High flow rate dialysis catheters and related methods
CA2348523A1 (en) Finishing technique for a guiding catheter
WO1997037702A1 (en) Bronchoaspiration tube having soft and hard portions
WO2002028472A3 (en) Non-scatterable, radio-opaque marker for medical imaging applications
USD440772S1 (en) Filter material
CA1254475A (en) Nephrostomy catheter with side connector
USD438621S1 (en) Indirect ophthalmoscopy lens retaining ring
JPS5850919Y2 (en) Medical disposable tube connector
WO2002045941A3 (en) Unitary composite article and method of making
USD415815S (en) Spool for a spinning fishing reel
USD299281S (en) Combination shirt and bow tie
TAMURA et al. Effect of cobra venom factor on experimental infection of mice against Clostridium chauvoei
USD372758S (en) Line roller for a spinning fishing reel
KR19980021658A (en) Bark of the belt

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
ENP Entry into the national phase

Ref document number: 2251759

Country of ref document: CA

Ref country code: CA

Ref document number: 2251759

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 1997921107

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1997921107

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1997921107

Country of ref document: EP