CA1261223A - Support frames - Google Patents

Support frames

Info

Publication number
CA1261223A
CA1261223A CA000528918A CA528918A CA1261223A CA 1261223 A CA1261223 A CA 1261223A CA 000528918 A CA000528918 A CA 000528918A CA 528918 A CA528918 A CA 528918A CA 1261223 A CA1261223 A CA 1261223A
Authority
CA
Canada
Prior art keywords
arm member
pad
channels
frame
limbs
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
Application number
CA000528918A
Other languages
French (fr)
Inventor
David Fuller
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
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Application granted granted Critical
Publication of CA1261223A publication Critical patent/CA1261223A/en
Expired legal-status Critical Current

Links

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
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • 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
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M2025/0213Holding devices, e.g. on the body where the catheter is attached by means specifically adapted to a part of the human body
    • A61M2025/0226Holding devices, e.g. on the body where the catheter is attached by means specifically adapted to a part of the human body specifically adapted for the nose
    • 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
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M2025/024Holding devices, e.g. on the body having a clip or clamp system
    • 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
    • A61M2210/00Anatomical parts of the body
    • A61M2210/06Head
    • A61M2210/0618Nose
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00Surgery
    • Y10S128/26Cannula supporters

Abstract

ABSTRACT OF THE DISCLOSURE

Known frames for supporting tracheal tubes comprise a loop of metal wire one end of which passes through a metal connector and the other end of which is secured to the patient's forehead. These frames are expensive and need to be made in a range of sizes for different patients.

In the present invention the frame is of plastic comprising a planar pad, for securing to the forehead, and an arm projecting from the pad with an adjustable length. The pad has two parallel channels of circular section which extend across the entire width of the pad. Three lateral channels extend between the channels and are located off-centre across the width of the pad. The arm has two parallel limbs that are a snap fit in the channels, and a lateral cross piece that is either a snap fit in one of the lateral channels or extends along the rear edge of the pad. The arm has a flange at one end which receives a connector for the tracheal tube and has a lug that prevents rotation of the connector.

Description

~2~
Back~round of the Invention This invention relates to support frames and more particulsrly, to frames for supporting medico-surgical tubes for nasal or oral use.

Ventilation and anaesthetic gases can be administered to a p~tient via n tube that extendfi ineo the trachea via the patient's nose or mouth. With young children especially, whose sXin is su~ceptible to damage by relatively light pressure, it i8 necessary to support the tracheal tube and the weight of connectors and tubing joined with the tracheal tube where it emerges from the patient's nose or mouth. The u~ual way of providing this support is by a frame of bent wire, such as of the kind described by Reid and Tun6tall in Anaesthesia Vol. 21 No. 1, Jan 1966 pages 72 to 79. Thi8 previous frame comprises a generally T-~hape loop of metal wire, the base portion of which passes through a metal connector that serves to make connection between the tracheal tube and the oxygen/anaesthetic tubing. The two ends of the wire forming the loop are joiQed together at the enlarged head portion of the loop which is secured to the forehead of the child such as by a bandage. The frame is suitably bent to ensure that~the connector is rai~ed above the child's face and that the weight of the associated tubing is supported.

These previous frames suffer from various disadvantages. Because the frame is integral with a metal connector, the combined weight of the fr~me and connector i8 relatively high. The cost of Menufacturing a metal frame a~d connector i9 relatively large which necessitates re-using and sterilising the equipment, ~hereas medical practitioners generally prefer disposable equipment. The area of the frame exerting pressure on the child's forehead is small leading to a localised distribution of pressure and possible discomfort.
Furthermore, different size frames have to be used according to the size of ,~ ' ' ' :

'' æ3 2334~~175 the pa~ient, and whekher they support a nasal or oral tube. Thls thereby requires larger stocks to be held by the hospital.
srief SummarY of the_Inve tion It is an object o~ the present invention to provide a support frame by which these disadvantages can be allevia~ed.
According to one aspect o~ the present invention there is provided a frame for supporting on a patient a tracheal tube having a connector connected therewith, said ~rame comprising~ a generally planar pad member, said pad member haviny two parallel channels and a~- least one lateral channel each of which opens on a planar surface of the pad member; and a support arm member, said support arm member having two ends, one of said ends being adapted to support said connector, said support arm member comprising two parallel limbs that extend along the arm member and a lateral cross piece that extends between said limbs close to the other of said ends of the arm member, said two limbs being removably inserted in a press fit into two parallel channels respectively and said la~eral cross piece being inserted into said lateral channel, the length of said arm member projecting from the pad member being selectively ad~ustable.
The lateral channel is preferahly located off-centre across the width of the pad member. The pad member may include a plurality of lateral channels extending parallel with one another at spaced locations across the width of ~he pad member. The paxallel channels that are arranged to receive the limbs preferably extend across the entire wid~h of the pad member. The ~L~ 23 limbs and the channels may be of substantially circular cross-section and the same diameter.
The arm member may include a flange at the one end which is adapted to receive the connector. The flanga may include a surface formation arranged to engage a co-operatlng surfaae formation on the connector such as thereby to prevent rotaklon of the connector relative to the frame.
The pad member may have surface formations thereon arranyed to improve the grip of the pad member with a bandage securing the frame to the patient's head.
The length of the arm member i6 preferably selectively adjustable to a length in which tha one end o~ the arm member supports a connector of a naso-tracheal tube in the region o~ the nose of a paediatric patient when the pad member is secured to the patent's head. The pad member and the arm member may be of a substan~ially rigid plastics material. One surface of the pad member may be profiled to the shape of the patient's forehead.
According to another aspect of the invention, there is provided a frame for supporting on a patient a tracheal tube having a connector connected therewith, said frame comprising, a generally planar pad member, said pad member having a broad channel therein that opens on a planar surface of the pad member;
and a support arm member, said support arm member having two ends one of said ends being adapted to support said connector, said support arm member comprislng two parallel limbs and a lateral cross piece extending between the limbs close to the other of said .~ 4 '~

9 X~3 233~0-175 ends of the arm member, the wldth of the said arm member being defined by said two parallel limbs and said lateral eross piece extending therebetween, said width of said arm member being equal to ~he width of the said channel, the arm member being located in the channal as a removable press fit to removably connect said arm member to said pad member, and the length o~ said arm member projecting from said pad member being selectively adjustable.
In a preferred embodiment of this other aspect, the said arm member has a generally planar transverse sectlon at its said other end that is located in the said broad channel, the ~loor of the channel being provided with surface projections, and the said planar transverse section being provided with surface projections that engage with the said sur~ace projection3 on the channel such as thereby to prevent displacement of said arm member along it~
length in the channel.
A paediatric naso-tracheal tube support frame in accordance with the present invention, will now be descxibed, by way of example, with reference to the accompanying drawings.
Brief Descrip~ion of the Drawin~s ~; 4a : ' Figure 1 i8 a perspective vie~ ~howing the fr~me in use on a patient;

Figure 2 ia n plsn vie~ of the upper surfnce of the frame;

Figure 3 i8 a side e:Levation view of the frame;

Figure 4 sho~ the underside of the frame;

Figure 5 i8 a transverse cross-sectional elevation of the frsme along the line V - V of Figure 4;

Figures 6 and 7 shows the underside of the frsme in different configurations; and Figure 8 is a perspective view of an alternative frame~

':

, Detailed Descri~tion Rith reference firct to Figure 1, the support frame comprises a pad 1 that is placed on the forehead 2 of the child and is secured thereto by a bandage 3 wrspped around the head. A piece of fabric (not shown) may be 5 plsced under the pad 1 to cushion it on the forehead. An arm member 4 projects caudally from one side of the pad 1 above the patient's nose. The arm member 4 supports a plastics paediatric COnDeCtOr 5 that make~ connection between the machine end of a naso-trachenl tube and a ventilation line 7, and thereby supports at least some of the weight of the ventilation line.

Referring now also to Figures 2 to 5, which show the support frame in greater detailJ the pad 1 and arm member 4 are two separate parts of the frame which are both mouldings of a light, relatively rigid plastics material, such as polypropylene. The pad 1 consists of a rectangular planar member 41mm long by 24mm wide and 3.5mm thick. The upper surface 12 of the pad 1 may be 15 ribbed or provided with other ~urface formation~ to prevent the pad slipping relative to the bandage 3. The underneath surface 13, that ic the surface towards with the patient's skin, may be fofmed ~ieh a relief pattern to improve the grip of the pad. The underneath surface 13 is also provided with channels to receive and ~ecure the arm member 4. Two parallel channels 16 and 20 17 extend across the entire width of the pad 1, and three channels 18 to 20 extends laterally between the parallel channels st different location~ across the width of the pad, opening along their length. As best seen in Figure 5, the channels 16 to 20 form, in section, the major part of a circle ~o that the width of the channels where they open on the lower surface 13 of the pad 1 is 25 somewhat less thflt the maximum width of the channels, internally of the pad.

The arm member 4 comprises two parallel limb~ 41 and 42 of circular section and of the ~ame thickness a~ the width of the channels 16 and 17 so that they ~re a ~nnp, press-fit in the channel~. The limbs 41 and 42 extend along opposite ~ides of the patient's nose, being spaced from each other by about 14mm. The limbs 41 and 42 are bridged at their rear end by a lateral cross-piece 43 having the same section as the limbs. The limbs 41 and 42 extend straight to a point 57mm forwardly of the cross-piece 43, ~here they are each flattened snd inclined downwardly at an angle O of 45 degrees to form forward portions 44 and 45. A short latleral finger 46 and 47 extend~ ardly from the tip of each forward portion of Ithe limbs, to opposite sides of a circular flange 48 that extends in the p1sne of the inclined forward portions.
The flange 48 has an internal diameter of 8.5mm and 8 thickness of about .8mm.
A lug 49 projects downwardly from the rear edge of the flange 48 and serves to locate in a flattened edge 51 of a flange 52 of the paediatric connector 5 (Fig. 3). The lug 49 prevents rotation of the connector 5, and hence of the tracheal tube 6 which might otherwise be caused by movement of the attached ventilation line 7.

! The length of the arm member 4 to the centre of the flange 48 i8 about 63mm. The length of arm member 4 that projects from the forward edge of the pad 1, in the configurations shown in Figures 2 to 5, where the cross-piece 43 i8 located in the rear channel 20 ia about 40mm. This length i8 adjustable by changing the configuration of the frame, that is by changing the position of the arm member 4 relative to the pad 1. Thi~ can be achieved by locating the arm member 4 in a more rearward position, as shown in Figure 6, in which the limbs 41 and 42 extend along the entire length of the channels 16 and 17, and the lateral cross-piece extends along the rear edge of the pad 1. In this configurseion, the arm member 4 projects only 34mm forwardly of the pad 1.
The configuration of the frame can also be changed by locating the cross-piec2 43 in one of the more forward channel~ 18 or 19, as shown in Figure 7.

,, Alternatively, the configuratioD of the frame c~n be changed by reorienting the arm member 4 and the pad l, by rotating the pad through 180 degree~ 80 that the lateral channels 19 and 20 nre located closer to that edge of the pad which i8 now closer the forward end of the srm member.

The support frame described can be made cheaply enough to be disposable.
In contrast with previous frames includ;ng a connector irremovably mounted on the frame, the frame of the present invention can be used with a range of different siz~, standard connectors, thereby avoiding the need to stock different frames. Because the frame can be adjusted to suit different size patients, this also avoids the need to stock a range of different size frames.
It would also be possible to have frames that could be used for supporting both oral and nasal tubes. The large area contact possible with the planar pad, and the surf2ce finish on both sides of the pad can be chosen to give a firmer, more comfortable location than has been possible with wire frames.

It will be appreciated that the pad and arm member may take variou6 different shapes and that different arangements are possible for providing adjustment between the arm member and the pad. For e~ample, as shown in Figure 8, the pad member 80 may have a broad channel 81 that extends acro~s the entire width of the arm member 82. The arm member 82 has a planar transverse section 83 at its rear end, the underside of ~hich is provided with surface formations tnot shown) that engage in surface formstions 84 formed on the floor of the channel 81 to prevent the arm member sliding along its length in the chan~el. In this way, the arm member 82 can be snapped into the channel 81 at any position ~ith the contacting surface formations preventing displacement of the arm member along its length.

The pad can be curved ~ith the same profile as the child's forehead if desired.

Claims (9)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A frame for supporting on a patient a tracheal tube having a connector connected therewith, said frame comprising: a generally planar pad member, said pad member having two parallel channels and at least one lateral channel each of which opens on a planar surface of the pad member; and a support arm member, said support arm member having two ends, one of said ends being adapted to support said connector, said support arm member comprising two parallel limbs that extend along the arm member and a lateral cross piece that extends between said limbs close to the other of said ends of the arm member, said two limbs being removably inserted in a press fit into two parallel channels respectively and said lateral cross piece being inserted into said lateral channel, the length of said arm member projecting from the pad member being selectively adjustable.
2. A frame according to claim 1, wherein said lateral channel is located off-centre across the width of the pad member.
3. A frame according to claim 1, wherein the said pad member includes a plurality of lateral channels extending parallel with one another at spaced locations across the width of the pad member.
4. A frame according to claim 1, wherein the said parallel channels that are arranged to receive the limbs extend across the entire width of the pad member.
5. A frame according to claim 1, wherein the limbs and channels are of substantially circular cross-section and the same diameter.
6. A frame according to claim 1, wherein the said arm member has a flange at said one end, said flange being adapted to receive the said connector, wherein the flange has a surface formation thereon, and wherein the said connector has a co-operating surface formation that engages the surface formation on the connector such as thereby to prevent rotation of the connector relative to the frame.
7. A frame for supporting on a patient a tracheal tube, said frame comprising: a generally planar pad member adapted for securing to the patient's forehead, said pad member having two parallel channels extending across the entire width of the pad member and a plurality of lateral channels extending between the parallel channels at spaced intervals along the parallel channels, at least one of said lateral channels being located off-centre across the width of the pad member; and a support arm member, said support arm member having a flange at one end arranged to support said tracheal tube, two parallel limbs extending along the arm member and shaped to be a press-fit in the said parallel channels, and a lateral cross piece extending between the said limbs at the said other end of the arm member, said lateral cross piece being shaped to lie selectively in one or other of said lateral channels or outside said pad member such that the length of the said arm member projecting from the pad member is selectively adjustable.
8. A frame for supporting on a patient a tracheal tube having a connector connected therewith, said frame comprising: a generally planar pad member, said pad member having a broad channel therein that opens on a planar surface of the pad member;
and a support arm member, said support arm member having two ends, one of said ends being adapted to support said connector, said support arm member comprising two parallel limbs and a lateral cross piece extending between the limbs close to the other of said ends of the arm member, the width of the said arm member being defined by said two parallel limbs and said lateral cross piece extending therebetween, said width of said arm member being equal to the width of the said channel, the arm member being located in the channel as a removable press fit to removably connect said arm member to said pad member, and the length of said arm member projecting from said pad member being selectively adjustable.
9. A frame according to claim 8, wherein the said arm member has a generally planar transverse section at its said other end that is located in the said broad channel, the floor of the channel being provided with surface projections, and the said planar transverse section being provided with surface projections that engage with the said surface projections on the channel such as thereby to prevent displacement of said arm member along its length in the channel.
CA000528918A 1986-02-22 1987-02-04 Support frames Expired CA1261223A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8604433 1986-02-22
GB868604433A GB8604433D0 (en) 1986-02-22 1986-02-22 Support frame

Publications (1)

Publication Number Publication Date
CA1261223A true CA1261223A (en) 1989-09-26

Family

ID=10593509

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000528918A Expired CA1261223A (en) 1986-02-22 1987-02-04 Support frames

Country Status (8)

Country Link
US (1) US4732147A (en)
JP (1) JPS62201162A (en)
AU (1) AU585430B2 (en)
CA (1) CA1261223A (en)
DE (1) DE3701878C2 (en)
FR (1) FR2594698B1 (en)
GB (2) GB8604433D0 (en)
IT (1) IT1216870B (en)

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Also Published As

Publication number Publication date
DE3701878C2 (en) 1994-06-23
GB2186801A (en) 1987-08-26
IT1216870B (en) 1990-03-14
AU6885987A (en) 1987-08-27
GB2186801B (en) 1989-11-08
AU585430B2 (en) 1989-06-15
FR2594698A1 (en) 1987-08-28
GB8702485D0 (en) 1987-03-11
IT8719249A0 (en) 1987-02-04
DE3701878A1 (en) 1987-08-27
JPS62201162A (en) 1987-09-04
FR2594698B1 (en) 1997-01-24
US4732147A (en) 1988-03-22
GB8604433D0 (en) 1986-03-26

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