GB2328878A - Medico-surgical tube with radiopacque component - Google Patents

Medico-surgical tube with radiopacque component Download PDF

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Publication number
GB2328878A
GB2328878A GB9818155A GB9818155A GB2328878A GB 2328878 A GB2328878 A GB 2328878A GB 9818155 A GB9818155 A GB 9818155A GB 9818155 A GB9818155 A GB 9818155A GB 2328878 A GB2328878 A GB 2328878A
Authority
GB
United Kingdom
Prior art keywords
shaft
medico
inflation line
tube according
cuff
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.)
Granted
Application number
GB9818155A
Other versions
GB2328878B (en
GB9818155D0 (en
Inventor
John Edward Nash
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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
Priority claimed from GBGB9718440.2A external-priority patent/GB9718440D0/en
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB9818155A priority Critical patent/GB2328878B/en
Publication of GB9818155D0 publication Critical patent/GB9818155D0/en
Publication of GB2328878A publication Critical patent/GB2328878A/en
Application granted granted Critical
Publication of GB2328878B publication Critical patent/GB2328878B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • A61M16/0465—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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
    • 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
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/0497—Tube stabilizer
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/32—General characteristics of the apparatus with radio-opaque indicia

Abstract

A medico-surgical tube, such as a tracheal or tracheostomy tube, has a moulded shaft 1 that is transparent to X-rays, an inflatable cuff 6 encircling said shaft at its patient end 5 and an inflation line 10, opening in said cuff and extending substantially along the length of said shaft within a channel 11 formed along the outer surface of the shaft 1, wherein said inflation line is radiopacque.

Description

MEDICO-SURGICAL TUBES This invention relates to medico-surgical tubes.
It is common practice for medico-surgical tubes to have some form of radio-opaque marker, so that the position of the tube during use can be viewed by X-ray observation. The entire tube could be made of a radio-opaque material but this has a disadvantage in that the filler used to make the tube radio opaque also reduces the visible transparency of the tube.
Also, the radio-opaque nature of the tube may obscure from X-ray observation the patients anatomy in the vicinity of the tube. In another arrangement, a tube is extruded with a line of radio-opaque material. This enables the remainder of the tube to be transparent to visible light and to X-rays. Although this arrangement is suitable for tubes that are extruded, it cannot be applied to tubes that are made in other ways.
It is an object of the present invention to provide an improved medico-surgical tube.
According to the present invention there is provided a medico-surgical tube having a shaft that is substantially transparent to X-rays, an inflatable cuff encircling the shaft towards one end, and an inflation line opening towards one end in said cuff and extending substantially along the length of said shaft, the inflation line being substantially opaque to Xrays.
The shaft preferably has a channel extending substantially along its length in its outer surface, the inflation line extending along the channel. The sectional shape of the channel is preferably a major part of a circle. The shaft is preferably moulded and the inflation line is preferably extruded. The patient end of the inflation line may either terminate within the cuff or be sealed closed and open into the cuff via a side opening in its wall. The shaft may be curved along its length, the inflation line extending along a side of the shaft parallel to the plane of curvature of the shaft. The tube is preferably a tracheal tube, such as a tracheostomy tube, the cuff being adapted to seal with the trachea.
A tracheostomy tube according to the present invention, will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of the tube; and Figure 2 is a sectional transverse view across the tube.
The tracheostomy tube has a tubular shaft 1 of circular section, which is curved along its length in a continuous arc. At its rear, machine end 2, the tube has a coupling 3 and a flange 4, both of which are moulded integrally with the shaft 1 as a single piece, such as by injection moulding. The shaft 1, the coupling 3 and the flange 4 are made of a plasticized PVC or polyurethane, which is transparent to both visible light and X rays. The forward, patient end 5 of the shaft 1 is open and an inflatable cuff 6 encircles the shaft close to the patient end, in the usual way.
The cuff 6 is inflated and deflated by means of a small bore inflation line 10 of circular section, with an outside diameter of about 1 .5mm. The inflation line 10 is extruded of PVC to which is added a radio-opaque filler, such as barium sulphate, in a sufficient quantity to render the inflation line radio-opaque. The inflation line 10 is clipped into a slot or channel 11 extending along the outside of the shaft 1 on a side that extends parallel to the plane of curvature of the shaft. In section, the channel 11 forms the major part of a circle so that only a small part of the inflation line 10 protrudes above the channel. The inflation line 10 is bonded in the channel, such as by means of a UV-activated adhesive. The patient end 12 of the inflation line 10 terminates within and opens into the cuff 6. Alternatively, the inflation line 10 could extend right to the patient end 5 ofthe shaft 1 where it would be sealed closed, the line opening through a side opening cut into its wall at a point within the cuff 6. This latter arrangement would give a radio-opaque line right to the end of the tube, which may be preferable in some circumstances. The inflation line 10 extends rearwardly in the channel 11 to a point to the rear of the flange 4, and then extends freely away from the shaft 1 by a distance of about 1 50mm. At its machine end 13, the inflation line 10 is terminated by a connector and inflation indicator 14 of conventional form.
In use, the radio-opaque property of the inflation line 10 is sufficient to enable the position of the tube to be determined by X-ray observation. The present invention enables an X-ray opaque line to be provided on tubes that are made by ways other than extrusion, although the X-ray opaque inflation line could also be used on extruded tubes, if desired.
The invention is not confined to tracheostomy tubes but can be used on any other medico-surgical tube having an inflatable cuff.

Claims (12)

CL
1. A medico-surgical tube having a shaft that is substantially transparent to X-rays, an inflatable cuff encircling the shaft towards one end, and an inflation line opening towards one end in said cuff and extending substantially along the length of said shaft, wherein said inflation line is substantially opaque to X-rays.
2. A medico-surgical tube according to Claim 1, wherein said shaft has a channel extending substantially along its length in its outer surface, and wherein said inflation line extends along said channel.
3. A medico-surgical tube according to Claim 2, wherein the sectional shape of said channel is a major part of a circle.
4. A medico-surgical tube according to any one of the preceding claims, wherein said shaft is moulded.
5. A medico-surgical tube according to any one of the preceding claims, wherein said inflation line is extruded.
6. A medico-surgical tube according to any one of the preceding claims, wherein the patient end of said inflation line terminates within said cuff.
7. A medico-surgical tube according to any one of Claims 1 to 5, wherein the patient end of said inflation line is sealed closed, and wherein said inflation line opens into said cuff via a side opening in its wall.
8. A medico-surgical tube according to any one of the preceding claims, wherein said shaft is curved along its length, and wherein said inflation line extends along a side of said shaft parallel to the plane of curvature of said shaft.
9. A tracheal tube according to any one of the preceding claims, wherein said cuff is adapted to seal with the trachea.
10. A tracheostomy tube according to Claim 9.
11. A tracheostomy tube substantially as hereinbefore described with reference to the accompanying drawing.
12. Any novel and inventive feature or combination of features as hereinbefore described.
GB9818155A 1997-09-02 1998-08-21 Medico-surgical tubes Expired - Fee Related GB2328878B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9818155A GB2328878B (en) 1997-09-02 1998-08-21 Medico-surgical tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9718440.2A GB9718440D0 (en) 1997-09-02 1997-09-02 Medico-surgical tubes
GB9818155A GB2328878B (en) 1997-09-02 1998-08-21 Medico-surgical tubes

Publications (3)

Publication Number Publication Date
GB9818155D0 GB9818155D0 (en) 1998-10-14
GB2328878A true GB2328878A (en) 1999-03-10
GB2328878B GB2328878B (en) 2001-07-25

Family

ID=26312153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9818155A Expired - Fee Related GB2328878B (en) 1997-09-02 1998-08-21 Medico-surgical tubes

Country Status (1)

Country Link
GB (1) GB2328878B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005009522A1 (en) * 2003-07-28 2005-02-03 Luiz Gonzaga Granja Filho A probe for medical use
WO2008039329A1 (en) * 2006-09-26 2008-04-03 Nellcor Puritan Bennett Llc Tracheostomy tube and technique for using the same
EP2435119A1 (en) * 2009-05-28 2012-04-04 Kimberly-Clark Worldwide, Inc. Tracheostomy tube
CN102641539A (en) * 2012-05-21 2012-08-22 陈宁 Dual-cuff medicine injection strengthened type tracheostomy tube
WO2018215728A1 (en) 2017-05-24 2018-11-29 Smiths Medical International Limited Medico-surgical tubes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105732A (en) * 1975-11-21 1978-08-08 Krandex Corp. Radiographic opaque and conductive striped medical tubes
GB2072019A (en) * 1980-03-20 1981-09-30 Adiseshiah M K Device for occluding ruptured artery

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150676A (en) * 1975-07-01 1979-04-24 National Catheter Corp. Endotracheal tubes with intubation direction control means
US4584998A (en) * 1981-09-11 1986-04-29 Mallinckrodt, Inc. Multi-purpose tracheal tube
US5499625A (en) * 1994-01-27 1996-03-19 The Kendall Company Esophageal-tracheal double lumen airway

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105732A (en) * 1975-11-21 1978-08-08 Krandex Corp. Radiographic opaque and conductive striped medical tubes
GB2072019A (en) * 1980-03-20 1981-09-30 Adiseshiah M K Device for occluding ruptured artery

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005009522A1 (en) * 2003-07-28 2005-02-03 Luiz Gonzaga Granja Filho A probe for medical use
WO2008039329A1 (en) * 2006-09-26 2008-04-03 Nellcor Puritan Bennett Llc Tracheostomy tube and technique for using the same
US8936025B2 (en) 2006-09-26 2015-01-20 Covidien Lp Tracheostomy tube and technique for using the same
EP2435119A1 (en) * 2009-05-28 2012-04-04 Kimberly-Clark Worldwide, Inc. Tracheostomy tube
CN102641539A (en) * 2012-05-21 2012-08-22 陈宁 Dual-cuff medicine injection strengthened type tracheostomy tube
WO2018215728A1 (en) 2017-05-24 2018-11-29 Smiths Medical International Limited Medico-surgical tubes

Also Published As

Publication number Publication date
GB2328878B (en) 2001-07-25
GB9818155D0 (en) 1998-10-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020821