WO1987005792A1 - Apparatus and method for performing a tracheostomy operation - Google Patents
Apparatus and method for performing a tracheostomy operation Download PDFInfo
- Publication number
- WO1987005792A1 WO1987005792A1 PCT/AU1987/000085 AU8700085W WO8705792A1 WO 1987005792 A1 WO1987005792 A1 WO 1987005792A1 AU 8700085 W AU8700085 W AU 8700085W WO 8705792 A1 WO8705792 A1 WO 8705792A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- trachea
- noses
- instrument
- opening
- syringe
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract description 29
- 210000003437 trachea Anatomy 0.000 claims abstract description 85
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 210000001331 nose Anatomy 0.000 claims description 47
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 210000000887 face Anatomy 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 210000003128 head Anatomy 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 206010003497 Asphyxia Diseases 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/24—Surgical instruments, devices or methods, e.g. tourniquets for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
Definitions
- the present invention relates to method and apparatus for inserting a cannula into a person's body.
- the invention is particularly applicable for performing a tracheostomy operation, and is therefore described below with respect to this application.
- a tracheostomy is a surgical operation of cutting into the front of the trachea (windpipe) to relieve an obstruction and to maintain a clear airway.
- the operation involves opening the trachea and placing in the opening a cannula which provides the clear airway to the trachea.
- the conventional procedure presently used is quite complicated and takes a considerable period of time, in the order of 30 minutes; moreover it is usually done only by a skilled surgeon since it is necessary to cut through blood vessels and to litigate them to the trachea because of the large size opening that is required.
- An object of the present invention is to provide apparatus for use in performing a tracheostomy operation, and also to a method for performing such an operation, which apparatus and method have a number of advantages compared to the conventional procedure, as will be described more particularly below.
- the invention is based on a method of performing a tracheostomy operation comprising the steps: penetrating the trachea to form a small opening therein by passing therethrough the needle of a syringe; manipulating the syringe to apply suction to the trachea; removing the syringe from the needle. - 2 -
- aninstrument particularly useful in performing a tracheostomy operation on a subject comprising: a pair of pivotable members pivotably mounted to each other at an intermediate location thereof; each of the pivotable members including a hand grip at one end and an elongated nose at the opposite end extending laterally of its respective pivotable member; the two elongated noses being formed at their inner confronting faces with complementary recesses for accomodating a wire inserted into an opening in the trachea of the subject; the outer faces of the two elongated noses being of substantially conical configuration decreasing in diameter towards their outer tips, facilitating the insertion of the noses into the trachea opening while guided by the wire therein; the two elongated noses being movable apart by squeezing the hand grips towards each other to widen the trachea opening and thereby to facilitate the insertion of a cannula therethrough.
- apparatus particularly useful in performing a tracheostomy operation on a s.ubject, comprising: a syringe and a syringe needle for penetrating the trachea by forming a small opening therein; a flexible guide wire insertable via the syringe needle into the trachea after the syringe has penetrated the trachea, and the syringe removed from the syringe needle;an instrument as described above for insertion into the small trachea opening when the instrument is in its closed position and while guided by the flexible guide wire, the instrument being manually opened to widen the trachea opening; and a cannula for insertion into the opening of the trachea after having been widened by the instrument.
- the above method and apparatus for performing a tracheostomy operation provide a number of important advantages over the conventional procedure commonly used today:
- the conventional procedure usually takes about 20-30 minutes
- the novel procedure described above can be performed in a small fraction of this time, in the order of one minute or less; this makes the novel procedure particularly advantageous in emergency situations where there is a danger of death by suffocation.
- the novel procedure does not require the expertise of a skilled surgeon, and may be performed by other doctors or paramedicals after relatively short instruction.
- the novel procedure is considerably safer since it can be performed quickly without litigation of blood vessels; and it involves less possibility of infection and less constriction of the trachea.
- Fig. 1 illustrates one form of instrument particularly useful in performing a tracheostomy operation in accordance with the present invention
- Fig. 2 is a side view of the instrument of Fig. 1;
- Figs. 3a-3c illustrate the other components of the apparatus for use with the instrument of Figs. 1 and 2 in performing a tracheostomy operation in accordance with the present invention
- Figs. 4a-4j illustrate the steps in performing the tracheostomy operation in accordance with the present invention
- Fig. 5 illustrates a modification in the instrument of Figs. 1 and 2;
- Fig. 6 illustrates an improved dilator instrument
- Fig. 7 is a fragmentary view of the dilator instrument of Fig. 6 showing it in its open condition;
- Fig. 8 illustrates an improved syringe needle
- Fig. 9 illustrates an improved flexible guide wire.
- the instrument illustrated in Figs. 1 and 2, and therein generally designated T comprises a pair of pivotable members 2, 3, pivotably mounted at an intermediate location thereof about pin 4.
- Each of the two members includes a hand grip 5, 6 at one end of pivot 4, and an elongated nose 7, 8 at the opposite end.
- the two elongated noses 7, 8 extend laterally at an angle to their respective pivotable members 1, 2.
- pivotable members 1 , 2 are urged to their closed positions as illustrated in Fig. 1 by a pair of springs 9, 10, and are locked in their closed positions by a locking member 11 pivotably mounted at 512 to member 6 just outwardly of pivot pin 4.
- the two elongated noses 7, 8 are formed at their inner confronting faces with semi-cylindrical recesses 13 which complement each other to define a cylindrical recess for accomodating a wire (30, Fig.
- the outer faces of the two noses 7, 8 are of a tapered, conical configuration, decreasing uniformly in diameter from their junctures 14 with their respective pivotable members 5, 6, to their
- a syringe illustrated in Fig. 3a
- a flexible wire illustrated in'
- Syringe 20 (Fig. 3a) includes a liquid
- Syringe 20 is used to form a small opening in the trachea by penetrating it
- Wire 30 (Fig. 3b) is a flexible wire of small diameter, having an outer diameter smaller than the opening through syringe 23.
- the arrangement is such that after the syringe needle penetrates the trachea and the remainder of the syringe is removed from the needle, wire 30 may be inserted into the trachea via the passageway through the syringe needle.
- the syringe needle is then removed, and thereafter, wire 30 serves as a guide for guiding the application of the instrument illustrated in Figs. 1 and 2 into the small opening in the trachea.
- the instrument is used for widening the opening sufficiently to receive mandrel 50 and cannula 60 as illustrated in Fig. 3c, which are inserted into the widened opening while guided by wire 30.
- the wire is then removed.
- Mandrel 50 (Fig. 3c) includes a bore 55 extending its complete length, an enlarged head 56 at one end, and a tapered curved end 57 at its opposite end.
- Cannula 60 (Fig. 3c) , inserted with mandrel 50 into the widened opening in the trachea, is formed with a passageway therethrough for receiving mandrel 50, and with an enlarged head 66 connectable to a pumping device.
- the opposite end 67 of cannula 60 is curved, as shown, and receives a balloon 68 which may be inflated in order to plug the trachea and thereby to assure that the air pumped into it will pass into the subject's lungs and not through his mouth or nose.
- a balloon 68 which may be inflated in order to plug the trachea and thereby to assure that the air pumped into it will pass into the subject's lungs and not through his mouth or nose.
- Cannula 66 is provided with a tubelet 69 leading to balloon 68 for inflating the balloon when the cannula is iserted into the trachea.
- the outer end of tubelet 66 includes another small balloon 69' which also becomes inflated to provide an indication that balloon 68 within the trachea is inflated.
- Figs. 4a-4j illustrate the steps involved in performing a tracheostomy operation in accordance with the apparatus shown in Figs. 1-2 and 3a-3c.
- Fig. 4a illustrates the normal position of the subject before the procedure is started; and Fig. 2b illustrates the step of feeling the subject's throat in order to locate the trachea. This is not difficult to do because of the large size of the trachea.
- syringe 20 is used to form a small opening in the trachea by passing the syringe needle 23 through it (Fig. 4c).
- plunger 22 is slightly withdrawn to apply a continuous suction to chamber 21 of the syringe, so that as soon as the syringe needle 23 has completely penetrated the wall of the trachea, air will be sucked into the liquid compartment 21 of the syringe and will be immediately discernable by the formation of bubbles within the liquid in that compartment, as illustrated in Fig. 4d.
- syringe 20 is removed from the syringe needle, with the syringe needle remaining in the trachea.
- Guide wire 30 is then passed through the syringe needle into the trachea (Fig. 4e), and then the syringe needle is removed leaving the guide wire within the trachea (Fig. 4f).
- the instrument illustrated in Figs. 1 and 2 is then used for widening the small trachea opening. 5 This is done by moving the instrument to its closed position as Illustrated in Fig. 1 and locking it in that position by pivoting block 11 to the illustrated position wherein it prevents the two hand grips 5, 6 from being squeezed together to open the two noses 7,
- Block 11 is then pivoted to its unlocking position permitting the two hand grips 5, 6 to be
- the wire 30 is removed, and the mandrel 50 and cannula 60 are inserted into the trachea opening (Fig. 4i) while the opening is held widened by the instrument.
- the mandrel 50 and guide wire 30 are then removed (Fig. 4j) , leaving the
- cannula 60 alone in the trachea opening.
- the balloon 68 at the end of the cannula may then be inflated to block off the air passage from the trachea to the mouth and nose passageways of the subject, thereby to assure that the air through the cannula 85
- air may be pumped into the trachea via enlarged head 24 of syringe needle
- mandrel 50 The function of mandrel 50 is to facilitate the introduction of cannula 60 into the trachea. The mandrel is thus inserted with the cannula into the trachea opening, and once the cannula is properly
- mandrel 50 could be detachably coupled to cannula 60, as by the provision of a bayonet pin on the mandrel received within a bayone groove on the cannula, such that the cannula is coupled to the
- the mandrel during the insertion of both into the trachea, and as soon as the cannula is properly located, the mandrel may be rotated slightly to unseat its pin from the cannula groove and then withdrawn while the cannula remains in place.
- the procedure can be performed by a doctor or paramedical and does not require the expertise of a skilled surgeon, thereby also making it particularly useful for emergency situations where a surgeon may not be available. Further, the described - 10 -
- the noses 7, 8 of the instrument illustrated in Figs. 1 and 2 are each of a length of 20-30 mm; extend at an angle of 90-135° to their respective pivotable members; and their outer surfaces are of a diameter of 1-2.5 mm at their outer tips 15 increasing to a diameter of 3-5 mm at their junctures 14 with their respective pivotable members 2, 3.
- the noses are of a length of 25 mm, extend at an angle of about 100° to their respective pivotable members 2, 3; and their outer surfaces taper from an inner diameter of 2 mm to 4 mm.
- Their semi-cylindrical recesses 13 have a diameter slightly larger than the diameter of the flexible guide wire 30 which they receive; in the described preferred embodiment, flexible guide wire 30 has a diameter of 1.0 mm, and the recesses formed in the inner confronting faces of the noses 7, 8 have a diameter slightly larger, of about 1.5 mm.
- Fig. 5 illustrates a modification in the construction of the instrument T of Figs. 1 and 2.
- the same reference numerals are used to identify the same parts.
- the arrangement is such that when the two links are in a straight line, as shown in full lines in Fig. 5, they lock the hand 5 grips in their closed positions, but when the two links are non-aligned, which can be done by merely moving pivot 73 outwardly, the links unlock the handgrips and permit them to be pressed toward each other, to thereby spread apart the noses 7, 8, when
- FIG. 6 An improved dilator instrument is illustrated in Figs. 6 and 7. It is provided with a guard, generally designated 200, at the juncture of the pivotable members 102, 103 and their elongated noses
- Guard 200 is constituted of two sections 201 , 202 each secured to the juncture of the respective pivotable member 102, 103 and its elongated nose 107, 108, so that it opens (Fig. 7) and closes (Fig. 6) with
- Each of the two guard sections 201 , 202 is planar and of the general configuration of a quadrant of a circle, and each extends substantially parallel to its respective pivotable member 102, 103, such that
- the two guard sections together define a substantially semi-circular guard with the diametrical straight edge 200a substantially aligned with the elongated noses 107, 108, and with the curved
- the elongated noses 107, 108 form an angle of 115° with their respective pivotable members 102, 103.
- each of the tips of the elongated noses is /00085
- tapered as shown at 107a, 108a, the taper preferably being 30°.
- the two handgrips 105, 106 are each provided with a stop member 205, 206 on their inner faces,, such that the stops engage each other when the handgrips are squeezed, to limit the open position of the elongated noses 107, 108.
- the syringe needle 23 includes a fingergrip holder 210 (Fig. 8) for holding it separately from the remainder of the syringe including the syringe compartment and the plunger.
- the syringe needle is slightly curved at its outer tip, as shown at 23a in Fig. 8.
- Such a construction has been found to facilitate the initial introduction of the syringe needle into the trachea by first inserting the syringe needle alone (i.e., without the remainder of the syringe) through the patient's skin into the trachea, and then applying the syringe to the enlarged head 24 of the syringe needle, as will be described more particularly below.
- the metal guide wire 30, as shown in Fig. 9, includes an inner flexible core 220 and an outer flexible coil 222 thereover.
- One end of the outer coil 222 is secured, as by spot welding or gluing at 226, to the inner wire core 220, and the outer tip of the coil projects past the inner core at the outer tip thereof to form a free conical tip 222a.
- Such an arrangement has been found to facilitate the introduction of the flexible guide wire via the syringe needle into the trachea.
- the procedure for performing the tracheostomy operation is basically the same as described with respect to Figs 4a-4j, with the following modifications:
- the patient should be lying on his back with the head extended, and the shoulders should be elevated (e.g., by using a rolled up sheet or blanket).
- the doctor pulpates the trachea to locate a spot about two centimeters above the supra-sternal notch.
- the doctor who should be positioned behind the patient, grasps the fingerpiece holder 210 of the syringe needle 23 and inserts the syringe needle into the trachea between the cartilage rings, this being facilitated by the curved tip of the needle.
- the syringe (not shown in the attached drawings) is then clamped to the syringe needle.
- the syringe compartment may be filled merely with air.
- the syringe plunger is pulled out to detect whether the piercing of the trachea has been completed, which is easily detected by the relatively free movement of the syringe plunger when this occurs. As soon as this has been detected, further penetration of the needle is discontinued, this insures that the front wall of the trachea is penetrated but not the rear wall. Then, the syringe is removed and the syringe needle 30 is retained in place in the trachea with the aid of the fingergrip holder 210.
- the curvature of the syringe needle facilitates this manner of penetrating the trachea front wall without penetrating its rear wall.
- the guide wire 30 is then inserted into the trachea via the hollow section of the syringe needle 23 until the guide wire extends completely into the trachea. This is 85
- the dilator instrument illustrated in Figs. 6 and 7 is then closed with the elongated noses 107, 108 around the guide wire, which guide wire is accomodated by the semi-cylindrical recesses formed in the noses; and the instrument is locked in its closed position by the locking links 171, 172, as illustrated in Fig. 6.
- the instrument is then advanced along the metal guide wire 30 until the tips of the noses enter the trachea.
- the locking links 171, 172 are then opened, and the handgrips 105, 106 are squeezed to spread apart the elongated noses 107, 108, and thereby to widen or dilate the opening through the trachea.
- This open position of the elongated noses 107, 108 is limited by the engagement of the stop elements 205, 206 carried by the handgrips 105, 106.
- the metal guide wire is then removed, and the cannula is introduced in the same manner as described above.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8720178A NL8720178A (en) | 1986-03-28 | 1987-03-27 | APPARATUS AND METHOD FOR PERFORMING AN AIR-CUT OPERATION. |
KR1019870701117A KR880701089A (en) | 1986-03-28 | 1987-03-27 | Apparatus and method for tracheostomy |
DK615187A DK615187A (en) | 1986-03-28 | 1987-11-23 | APPARATUS AND PROCEDURE FOR CONDUCTING A TRACHE OSTOMI OPERATION |
NO874900A NO874900L (en) | 1986-03-28 | 1987-11-25 | APPARATUS AND PROCEDURE FOR CARRYING OUT A TRACOMOPERATION. |
FI875249A FI875249A (en) | 1986-03-28 | 1987-11-27 | FOERFARANDE OCH ANORDNING FOER UTFOERING AV TRAKEOSTOMIA. |
SE8704755A SE8704755L (en) | 1986-03-28 | 1987-11-27 | INSTRUMENT AND DEVICE FOR PERFORMING A TRAKEOTOMY OPERATION |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL78295 | 1986-03-28 | ||
IL78295A IL78295A0 (en) | 1986-03-28 | 1986-03-28 | Apparatus and method for performing a tracheostomy operation |
IL81378A IL81378A0 (en) | 1986-03-28 | 1987-01-23 | Apparatus and method for performing a tracheostomy operation |
IL81378 | 1987-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1987005792A1 true WO1987005792A1 (en) | 1987-10-08 |
Family
ID=26321520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1987/000085 WO1987005792A1 (en) | 1986-03-28 | 1987-03-27 | Apparatus and method for performing a tracheostomy operation |
Country Status (16)
Country | Link |
---|---|
JP (1) | JPS63503281A (en) |
KR (1) | KR880701089A (en) |
AU (1) | AU594461B2 (en) |
CH (1) | CH670570A5 (en) |
DE (1) | DE3790172T1 (en) |
ES (1) | ES2005117A6 (en) |
FI (1) | FI875249A (en) |
FR (1) | FR2596272A1 (en) |
GB (1) | GB2196535B (en) |
GR (1) | GR870493B (en) |
IL (1) | IL81378A0 (en) |
IT (3) | IT8747783A0 (en) |
NL (1) | NL8720178A (en) |
PT (1) | PT84577B (en) |
SE (1) | SE8704755L (en) |
WO (1) | WO1987005792A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5111829A (en) * | 1989-06-28 | 1992-05-12 | Boston Scientific Corporation | Steerable highly elongated guidewire |
US5279285A (en) * | 1989-12-11 | 1994-01-18 | Griggs William M | Tracheostomy method and apparatus |
EP0681848A1 (en) * | 1994-05-13 | 1995-11-15 | Axel Arnold | Set of instruments for inserting a drainage tube into a foam panel |
FR2825612A1 (en) * | 2001-05-14 | 2002-12-13 | Sanjay Gandhi Post Graduate In | Tracheotomy forceps consist of two swivel bars with expander plate at distal ends, and handle at proximal end, with grooves for wire, side protuberances, and scale |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8825749D0 (en) * | 1988-11-03 | 1988-12-07 | Smiths Industries Plc | Surgical instruments |
DE4115548C2 (en) * | 1990-05-17 | 1996-11-21 | Storz Karl | Surgical forceps for use in laparoscopy |
EP1237490B1 (en) * | 1999-09-08 | 2012-07-04 | Joseph Grayzel | Percutaneous entry system |
US6761725B1 (en) | 1999-09-08 | 2004-07-13 | Jeffrey Grayzel | Percutaneous entry system and method |
DE10025314A1 (en) | 2000-05-22 | 2001-12-06 | Ruesch Willy Ag | Tracheotomy procedure and instrument |
US7481766B2 (en) | 2003-08-14 | 2009-01-27 | Synthes (U.S.A.) | Multiple-blade retractor |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3181533A (en) * | 1962-01-15 | 1965-05-04 | William C Heath | Surgical snare |
GB1283614A (en) * | 1969-12-20 | 1972-08-02 | Inst Serdechno Sosudistoi Khir | Dilator for performing mitral and tricuspidal commissurotomy per atrium cordis |
AU4658172A (en) * | 1970-04-16 | 1974-03-21 | Weiss Sol | Device for performing a tracheostomy and other surgical procedures |
US3817250A (en) * | 1972-10-24 | 1974-06-18 | Int Medical Devices Inc | Instrument for performing a tracheostomy and other surgical procedures |
US4520810A (en) * | 1981-10-02 | 1985-06-04 | Sol Weiss | Apparatus for performing an emergency cricothyrotomy |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE7316352L (en) * | 1973-12-04 | 1975-05-05 | ||
US4364391A (en) * | 1980-11-14 | 1982-12-21 | Toye Frederic J | Tracheostomy apparatus and method |
US4553543A (en) * | 1984-03-05 | 1985-11-19 | Amarasinghe Disamodha C | Suturing assembly and method |
US4643188A (en) * | 1985-02-14 | 1987-02-17 | Sol Weiss | Surgical device for performing emergency cricothyrotomies and tracheotomies |
-
1987
- 1987-01-23 IL IL81378A patent/IL81378A0/en unknown
- 1987-03-26 PT PT84577A patent/PT84577B/en not_active IP Right Cessation
- 1987-03-27 DE DE19873790172 patent/DE3790172T1/de not_active Withdrawn
- 1987-03-27 JP JP62502437A patent/JPS63503281A/en active Pending
- 1987-03-27 IT IT8747783A patent/IT8747783A0/en unknown
- 1987-03-27 WO PCT/AU1987/000085 patent/WO1987005792A1/en active Application Filing
- 1987-03-27 AU AU72866/87A patent/AU594461B2/en not_active Ceased
- 1987-03-27 ES ES8700877A patent/ES2005117A6/en not_active Expired
- 1987-03-27 CH CH4666/87A patent/CH670570A5/de not_active IP Right Cessation
- 1987-03-27 NL NL8720178A patent/NL8720178A/en unknown
- 1987-03-27 GB GB8727501A patent/GB2196535B/en not_active Expired - Lifetime
- 1987-03-27 FR FR8704333A patent/FR2596272A1/en active Pending
- 1987-03-27 GR GR870493A patent/GR870493B/en unknown
- 1987-03-27 KR KR1019870701117A patent/KR880701089A/en not_active Application Discontinuation
- 1987-11-27 SE SE8704755A patent/SE8704755L/en not_active Application Discontinuation
- 1987-11-27 FI FI875249A patent/FI875249A/en not_active IP Right Cessation
-
1990
- 1990-05-29 IT IT35791U patent/IT220724Z2/en active IP Right Grant
- 1990-05-29 IT IT35791U patent/IT9035791V0/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3181533A (en) * | 1962-01-15 | 1965-05-04 | William C Heath | Surgical snare |
GB1283614A (en) * | 1969-12-20 | 1972-08-02 | Inst Serdechno Sosudistoi Khir | Dilator for performing mitral and tricuspidal commissurotomy per atrium cordis |
AU4658172A (en) * | 1970-04-16 | 1974-03-21 | Weiss Sol | Device for performing a tracheostomy and other surgical procedures |
US3817250A (en) * | 1972-10-24 | 1974-06-18 | Int Medical Devices Inc | Instrument for performing a tracheostomy and other surgical procedures |
US4520810A (en) * | 1981-10-02 | 1985-06-04 | Sol Weiss | Apparatus for performing an emergency cricothyrotomy |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5111829A (en) * | 1989-06-28 | 1992-05-12 | Boston Scientific Corporation | Steerable highly elongated guidewire |
US5279285A (en) * | 1989-12-11 | 1994-01-18 | Griggs William M | Tracheostomy method and apparatus |
EP0681848A1 (en) * | 1994-05-13 | 1995-11-15 | Axel Arnold | Set of instruments for inserting a drainage tube into a foam panel |
FR2825612A1 (en) * | 2001-05-14 | 2002-12-13 | Sanjay Gandhi Post Graduate In | Tracheotomy forceps consist of two swivel bars with expander plate at distal ends, and handle at proximal end, with grooves for wire, side protuberances, and scale |
Also Published As
Publication number | Publication date |
---|---|
KR880701089A (en) | 1988-07-25 |
FR2596272A1 (en) | 1987-10-02 |
PT84577B (en) | 1989-11-30 |
IL81378A0 (en) | 1987-08-31 |
IT9035791V0 (en) | 1990-05-29 |
ES2005117A6 (en) | 1989-03-01 |
AU7286687A (en) | 1987-10-20 |
GR870493B (en) | 1987-07-30 |
IT220724Z2 (en) | 1993-11-02 |
GB2196535A (en) | 1988-05-05 |
JPS63503281A (en) | 1988-12-02 |
FI875249A0 (en) | 1987-11-27 |
IT9035791U1 (en) | 1991-11-29 |
SE8704755D0 (en) | 1987-11-27 |
FI875249A (en) | 1987-11-27 |
PT84577A (en) | 1987-04-01 |
GB2196535B (en) | 1990-02-14 |
GB8727501D0 (en) | 1987-12-23 |
AU594461B2 (en) | 1990-03-08 |
SE8704755L (en) | 1987-11-27 |
CH670570A5 (en) | 1989-06-30 |
IT8747783A0 (en) | 1987-03-27 |
NL8720178A (en) | 1988-02-01 |
DE3790172T1 (en) | 1988-06-23 |
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