Abstract
Beverley Charles Leech (1898 to 1960) patented the Leech airway or “Pharyngeal Bulb Gasway” in 1937. The Leech airway formed a seal with the pharyngeal tissues, resulting in a closed system during cyclopropane anaesthesia. Two prototypes and four commercially available versions of the airway have been identified.
References
1.
Leech
B.C.
The pharyngeal bulb gasway: a new aid in cyclopropane anesthesia . Curr Research Anesth Analg 1937 ; 16 : 22 –25 .
2.
Waters
R.M.
,
Schmidt
E.R.
Cyclopropane anesthesia . JAMA 1934 ; 103 : 975 –983 .
3.
Leech
B.C.
,
Griffith
H.R.
Cyclopropane-unmixed . Can Med Assoc J 1940 ; 42 : 434 –438 .
4.
Maltby
J.R.
Leech pharyngeal bulb gasway . The History of Anaesthesia Society Proceedings (Proceedings of the Summer Scientific Meeting, 25–26 June 2010) 2010 ; 42 : 95 –101 .
5.
Maltby
J.R.
,
Robins
J.
Letter to the editor . Bulletin of Anesthesia History 2002 ; Volume 20 , Number 4 : pp. 2 , 11.
6.
Shephard
D.A.
Beverley Charles Leech (1898–1960) . Can J Anaesth 1990 ; 37 : 689 .
7.
H.B.G. [
Graves
H. B.
]. (Obituary) Beverley Charles Leech . Can J Anaesth 1960 ; 7 : 351 –352 .
8.
Griffith
H.R.
An appreciation. [Beverley Charles Leech] . Can J Anaesth 1960 ; 7 : 352 .
9.(Obituary) Beverley Charles Leech, M.D . American Society of Anesthesiologists (ASA) Newsletter 1960 ; 24 : 13 .
10.
Murphy
F.J.
Two improved intratracheal catheters . Curr Research Anesth Analg 1941 ; 20 : 102 –105 .
11.
“Unclassified metal oropharyngeal airway with rubber pharyngeal bulb ” in the Virtual Museum of Equipment for Airway Management. From http://www.adair.at/eng/museum/equipment/oropharyngealairways/metalbulb/unclassified01.htm Accessed February 2011 .
12.
Haridas
R.P.
The Leech pharyngeal gasway . Educational Synopses in Anesthesiology and Critical Care Medicine 1998 ; Volume 5 , Number 3 .
13.
Griffith
H.R.
The management of complications arising during cyclopropane anesthesia . New York State Journal of Medicine 1940 ; 40 : 209 –214 .
14.
Griffith
H.R.
The prevention and treatment of complications during cyclopropane anesthesia . Curr Research Anesth Analg 1940 ; 19 : 141 –144 .
15.
Lundy
J.S.
Clinical anesthesia . A manual of clinical anesthesiology. WB Saunders Company Philadelphia 1942 ; pp 279 , 486.
16.
Clement
F.W.
Nitrous oxide-oxygen anesthesia , 3rd ed. Lea and Febiger Philadelphia 1951 ; pp. 158 .
17.
Gillespie
N.A.
Endotracheal anaesthesia. University of Wisconsin Press Madison 1941 .
18.
Shipway
F.
Airway for intranasal operations . BMJ 1935 ; 1 : 767 .
19.
Minnitt
R.J.
,
Gillies
J.
Textbook of anaesthetics , 6th ed. E. and S. Livingstone Ltd Edinburgh 1944 .
20.
Sherwin
L.W.
The pharyngeal gasway; its use in exodontia . Dent Items Interest 1947 ; 69 : 342 –344 .
21.
Schultz
P.E.
,
Guralnick
W.C.
Advances in general anesthesia; pentothal sodium and curare . J Am Dent Assoc 1948 ; 36 : 140 –149 .
22.
Brain
A.I.J.
The laryngeal mask – a new concept in airway management . Br J Anaesth 1983 ; 55 : 801 –805 .
23.
Bodman
R.
Déjà vu . Br J Anaesth 1990 ; 64 : 406 .
24.
Leech
B.C.
Organization and management of a Department of Anesthesia in a 200 to 400 bed hospital . Curr Research Anesth Analg 1934 ; 13 : 192 –197 .
25.
Leech
B.C.
Reliable spinal block analgesia . Can Med Assoc J 1934 ; 31 : 397 –400 .
26.
Leech
B.C.
Preanesthetic medication in children . Curr Research Anesth Analg 1935 ; 15 : 283 –286 .
27.
Murphy
J.E.
,
Leech
B.C.
Anesthetist's emergency truck . Curr Research Anesth Analg 1939 ; 18 : 319 –323 .
28.
Leech
B.C.
R.C.A.M.C. Anaesthetic Experiences: Dieppe Raid Casualties, August 19–20, 1942 . Proc R Soc Med 1943 ; 36 : 207 –210 .
29.
Leech
B.C.
Safety measures in the practice of anaesthetics . Can Med Assoc J 1947 ; 56 : 28 –34 .
30.
Griffith
H.R.
,
Johnson
G.E.
The use of curare in general anesthesia . Anesthesiology 1942 ; 3 : 418 –420 .