GB2384432A - A tracheostomy assembly with a releasably attachable stop - Google Patents

A tracheostomy assembly with a releasably attachable stop Download PDF

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Publication number
GB2384432A
GB2384432A GB0229945A GB0229945A GB2384432A GB 2384432 A GB2384432 A GB 2384432A GB 0229945 A GB0229945 A GB 0229945A GB 0229945 A GB0229945 A GB 0229945A GB 2384432 A GB2384432 A GB 2384432A
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GB
United Kingdom
Prior art keywords
stop
cannula
needle
assembly according
tracheostomy
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
GB0229945A
Other versions
GB2384432B (en
GB0229945D0 (en
Inventor
Christopher Stratton Turnbull
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
Publication of GB0229945D0 publication Critical patent/GB0229945D0/en
Publication of GB2384432A publication Critical patent/GB2384432A/en
Application granted granted Critical
Publication of GB2384432B publication Critical patent/GB2384432B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • A61M16/0472—Devices for performing a tracheostomy

Abstract

A percutaneous tracheostomy assembly has a hollow needle 1 carrying a cannula 2 with a hub 21 at its rear end abutting a hub 11 on the needle. A channel-shape stop 3 has a section with the shape of an inverted "U" or an omega symbol [Fig.2] and is clipped onto the cannula 2 and needle 1 so that its rear end 34 abuts the hub 21 of the cannula. The stop 3 has a laterally-extending flange 33 at its forward end. The length of the stop 3 is such that the tip 10 of the needle 1 and the forward end 22 of the cannula 2 are positioned within the trachea 41 when the flange 33 abuts the skin of the neck, without the risk of the needle contacting the posterior wall of the trachea.

Description

t MEDICO-SURGICAL APPARATUS
This invention relates to medico-surgical apparatus.
One technique for performing a percutaneous tracheostomy involves a needle carrying a cannula. An initial cut is made with a scalpel through the skin of the neck and the needle is pushed through neck tissues and the anterior wall of the trachea so that the tip of the needle and the cannula locate in the trachea. The needle is then pulled out to leave the cannula in place. A guidewire is inserted through the cannula, which is then removed. A dilator is slid along the guidewire to expand the opening through the tissue sufficiently to receive a tracheostomy tube. The dilator may take various forms, such as an expanding forceps, as described in EP0505390, or a tapering dilator or series of tapering dilators.
One problem with this technique is that, the needle must be sufficiently long to accommodate the cannula, making it long enough to contact the posterior wall of the trachea.
This can lead to drainage to the wall of the trachea if used incorrectly. In extreme cases, the needle could be pushed through the posterior wall of the trachea into the oesophagus, causing the guidewire and dilators to be inserted in the oesophagus.
It is an object of the present invention to provide alternative medicosurgical apparatus. According to one aspect of the present invention there is provided a tracheostomy assembly including a needle having a pointed first end adapted for insertion through neck
tissue into the trachea, a cannula extending along the outside of the needle and a stop mounted on the cannula, the stop having a first end adapted to limit the extent of insertion of the assembly in the trachea, and the stop being removable from the cannula when the cannula is located in the trachea.
The stop is preferably a clip-fit on the cannula and is removable laterally. The stop is preferably of channel shape. The cannula may have an enlarged portion towards its rear end, the stop being adapted to engage the enlarged portion. The enlarged portion is preferably a hub. The needle preferably has an enlarged portion towards its rear end, which may be a hub.
The first end of the stop is preferably spaced rearwardly of the first end of the needle by substantially 20mm. The stop may have a laterally extending flange at its first end. The stop may be held on the cannula by resilience of the stop.
According to another aspect of the invention there is provided a stop for a tracheostomy assembly according to the above one aspect of the invention.
A percutaneous tracheostomy assembly according to the present invention, will now be described, by way of example, with reference to the accompanying drawing, in which: Figure 1 is a cross-sectional side elevation view of the assembly; Figure 2 is an enlarged transverse sectional view of the assembly along the line II-II of Figure 1;
Figure 3 is a plan view of the stop; and Figure 4 is a partly sectional side elevation view showing the assembly in use.
With reference first to Figures 1 to 3, the assembly includes a needle 1, a cannula 2 and a stop 3.
The needle 1 is hollow and of metal, with a pointed penetrating tip 10 at one end and an enlarged moulded hub 11 at its opposite end.
The cannula 2 is of plastics material having a flexible shaft 20 and an enlarged hub 21 at its rear end. The cannula 2 is a close sliding fit on the needle 1 with its hub 21 located against the hub 11 of the needle and with its forward. end 22 located just rearwardly of the tip 10 of the needle.
The stop 3 is moulded from a relatively hard plastics material and comprises a channel portion 30 of generally omega shape in section with an open upper surface provided by a flared entrance portion 31. The main part 32 of the channel 30 has a substantially circular section with an internal diameter equal to the external diameter of the cannula 2. The entrance portion 31 has a width at its narrowest part that is less than the diameter of the cannula 2. The channel 30 acts as a resilient clip to retain the stop 3 on the cannula 2. At its =.....
forward, patient end, the stop 3 has a laterally-extending flange 33, which acts to limit the extent of insertion of the assembly. The stop 3 is clipped onto the cannula 2 and needle 1 laterally from one side with its rear end 34 abutting the hub 21 on the cannula. The length of
the stop 3 is selected so that, when fitted on the cannula and needle, about 20 rum of needle protrudes beyond the flange 33 at the forward end of the stop. This is insufficient to allow the tip 10 of the needle 1 to contact or penetrate the posterior wall of the trachea.
As shown in Figure 4, when the assembly is pushed through neck tissue 40 into the trachea 41, the extent of insertion is limited by abutment of the flange 33 on the stop 3 with the skin 42. The stop 3 is then unclipped from the cannula 2 by pulling it laterally. The needle 1 is then slid out and a guidewire (not shown) is inserted along the cannula 2 in the usual way so that dilators can, in turn be slid along the guidewire to enlarge the opening into the trachea.
It will be appreciated that the stop could have other constructions enabling it to be removed from the cannula and needle while the forward, patient end of the cannula is located in the trachea. The stop and assembly of the present invention enables a conventional percutaneous needle and cannula to be used with a reduced risk of injury to the patient.

Claims (14)

1. A tracheostomy assembly including a needle having a pointed first end adapted for insertion through neck tissue into the trachea, a cannula extending along the outside of the needle and a stop mounted on the cannula, wherein the stop has a first end adapted to limit the extent of insertion of the assembly in the trachea, and wherein the stop is removable from the cannula when the cannula is located in the trachea.
2. A tracheostomy assembly according to Claim 1, wherein the stop is a clip fit on the
cannula and is removable laterally.
3. A tracheostomy assembly according to Claim 1 or 2, wherein the stop is of channel shape.
4. A tracheostomy assembly according to any one of the preceding claims, wherein the cannula has an enlarged portion towards its rear end, and wherein the stop is adapted to engage the enlarged portion.
5. A tracheostomy assembly according to Claim 4, wherein the enlarged portion is a hub.
6. A tracheostomy assembly according to any one of the preceding claims, wherein the needle has an enlarged portion towards its rear end.
7. A tracheostomy assembly according to Claim 6, wherein the enlarged portion on the needle is a hub.
8. A tracheostomy assembly according to any one of the preceding claims, wherein the first end of the stop is spaced rearwardly of the first end of the needle by substantially 20mm.
9. A tracheostomy assembly according to any one of the preceding claims, wherein the stop has a laterally extending flange at its first end.
10. A tracheostomy assembly according to any one of the preceding claims, wherein the stop is held on the cannula by resilience of the stop.
11. A tracheostomy assembly substantially as hereinbefore described with reference to the . accompanying drawing.
12. A stop for a tracheostomy assembly according to any one of the preceding claims.
13. A stop substantially as hereinbefore described with reference to the accompanying drawing.
14. Any novel and inventive feature or combination of features as hereinbefore described.
GB0229945A 2002-01-23 2002-12-20 Medico-surgical apparatus Expired - Fee Related GB2384432B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0201436.3A GB0201436D0 (en) 2002-01-23 2002-01-23 Medico-surgical apparatus

Publications (3)

Publication Number Publication Date
GB0229945D0 GB0229945D0 (en) 2003-01-29
GB2384432A true GB2384432A (en) 2003-07-30
GB2384432B GB2384432B (en) 2005-07-20

Family

ID=9929543

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0201436.3A Ceased GB0201436D0 (en) 2002-01-23 2002-01-23 Medico-surgical apparatus
GB0229945A Expired - Fee Related GB2384432B (en) 2002-01-23 2002-12-20 Medico-surgical apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0201436.3A Ceased GB0201436D0 (en) 2002-01-23 2002-01-23 Medico-surgical apparatus

Country Status (2)

Country Link
US (1) US6742519B2 (en)
GB (2) GB0201436D0 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
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US7036510B2 (en) * 2003-04-28 2006-05-02 Cook Critical Care Incorporated Percutaneous tracheostomy balloon apparatus
SE0501786L (en) * 2005-08-09 2007-02-10 Atos Medical Ab Device and procedure for tracheotomy
US7552732B2 (en) * 2005-10-11 2009-06-30 Cyril Newman Adult percutaneous emergency tracheotomy kit
CA2652544A1 (en) * 2006-05-18 2007-12-13 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US8424534B2 (en) * 2007-05-01 2013-04-23 Cook Medical Technologies Llc Loading dilator with transition balloon
US20090159087A1 (en) * 2007-12-19 2009-06-25 Roger Isla Tracheostomy device
US20090163942A1 (en) * 2007-12-20 2009-06-25 Cuevas Brian J Tracheostomy punch dilator
WO2009149555A1 (en) * 2008-06-11 2009-12-17 Governors Of The University Of Alberta Cricothyrotomy device
US20090320854A1 (en) * 2008-06-27 2009-12-31 Cuevas Brian J Easy Grip Tapered Dilator
US20100300451A1 (en) * 2009-06-01 2010-12-02 Griffith Nathan C Punch Dilator
WO2014134624A1 (en) 2013-03-01 2014-09-04 The Arizona Board Of Regents On Behalf Of The University Of Arizona Modified veress needle for tension pneumothorax decompression
WO2015112719A1 (en) 2014-01-22 2015-07-30 University Of Maryland, Baltimore System and method for emergency apneic oxygenation
CN103815952B (en) * 2014-03-03 2015-11-11 吉林大学 Disposable cervical region puncture special needle
US11033665B2 (en) 2016-11-04 2021-06-15 The Arizona Board Of Regents On Behalf Of The University Of Arizona Modified veress needle assembly for tension pneumothorax decompression

Citations (6)

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Publication number Priority date Publication date Assignee Title
US3613684A (en) * 1969-09-19 1971-10-19 David S Sheridan Trocar catheters
US3769975A (en) * 1971-11-26 1973-11-06 Johnson & Johnson Slit sleeve for preventing displacement in a catheter assembly
GB1459741A (en) * 1972-09-21 1976-12-31 Parkinson P I Intravenous equipment
US4565544A (en) * 1983-02-12 1986-01-21 Fresenius Ag Device for introducing a catheter
US5320608A (en) * 1993-01-29 1994-06-14 Gerrone Carmen J Combined pneumo-needle and trocar apparatus
US5364367A (en) * 1993-04-30 1994-11-15 Minnesota Mining And Manufacturing Company Cannula anchor

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US3916903A (en) * 1973-07-20 1975-11-04 Reta M H Pozzi Cricothyroid puncture apparatus
US3991765A (en) * 1975-04-09 1976-11-16 Howard Cohen Cricothyrotomy apparatus
US5090408A (en) * 1985-10-18 1992-02-25 Bryan T. Spofford Transtracheal catheter system and method
US4877021A (en) * 1985-05-14 1989-10-31 Gary Higer Emergency airway surgical device
US5058580A (en) * 1988-05-11 1991-10-22 Hazard Patrick B Percutaneous tracheostomy tube
GB8825749D0 (en) * 1988-11-03 1988-12-07 Smiths Industries Plc Surgical instruments
US5507279A (en) * 1993-11-30 1996-04-16 Fortune; John B. Retrograde endotracheal intubation kit
US5546939A (en) * 1994-12-05 1996-08-20 French; Ronald Emergency tracheostomy apparatus
US5653230A (en) * 1996-01-19 1997-08-05 Cook Incorporated Percutaneous balloon dilational tracheostomy tube
US6109264A (en) * 1996-01-26 2000-08-29 Lasersurge, Inc. Apparatus for expanding body tissue
DE29723780U1 (en) * 1997-09-03 1999-02-11 Klappenberger Juergen Dr Med Surgical instrument for emergency medicine
US6298851B1 (en) * 1999-09-15 2001-10-09 Gheorghe Parota Emergency tracheotomy apparatus
US6637435B2 (en) * 1999-12-07 2003-10-28 Cook Incorporated Percutaneous dilational device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613684A (en) * 1969-09-19 1971-10-19 David S Sheridan Trocar catheters
US3769975A (en) * 1971-11-26 1973-11-06 Johnson & Johnson Slit sleeve for preventing displacement in a catheter assembly
GB1459741A (en) * 1972-09-21 1976-12-31 Parkinson P I Intravenous equipment
US4565544A (en) * 1983-02-12 1986-01-21 Fresenius Ag Device for introducing a catheter
US5320608A (en) * 1993-01-29 1994-06-14 Gerrone Carmen J Combined pneumo-needle and trocar apparatus
US5364367A (en) * 1993-04-30 1994-11-15 Minnesota Mining And Manufacturing Company Cannula anchor

Also Published As

Publication number Publication date
US20030136414A1 (en) 2003-07-24
GB2384432B (en) 2005-07-20
GB0229945D0 (en) 2003-01-29
US6742519B2 (en) 2004-06-01
GB0201436D0 (en) 2002-03-13

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20071220