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SELF-RETAINING RETRACTORS.
940 A NEW FORM OF WEIGHING MACHINE.
New Inventions. A NEW SNARE FOR NOSE, THROAT, AND EAR WORK. FOR many operations upon the nose and throat a snare is needed which can be tightened up either rapidly or slowly. In many cases, as for the removal of certain forms of enlarged tonslls, lntenor turbinate hypertrophies, fibrous growths, &c., it is of great portance to be able to draw the wire loop rapidly tight so as to grasp the growth firmly in position and then to cut through it slowly. At the same time the snare must be strong enough and must carry a wire sufficiently thick to cut through the growth however tough it may be. I believe the snare here illustrated will be found to fulfil the above requirements. Its mechanism will be easily understood from the accompanying illustration. The wire loop is tightened at first by drawing on the finger-Ioops, and then when a slow action or more force is required a screw action can be brought into play by releasing the lower finger-loop. Tne instrument is very simple and strong in all its parts, it is made entirely of metal, and can be taken to pieces for cleaning, &,. The wire loop can be quickly and easily attached and i very firmly fixed. The snare works noiselessly. To increase the general usefnlness of the instrument I have had it made with three ends: a strong barrel for very tough growths ; a very fine end for aural use, for nasal polypi, and for other soft growths ; and a curved end for use in the larynx and post-nasal space. I am greatly indebted to an engineering friend, Mr. Bingham, for much help and for designing the method by which the screw is brought into action, and to Messrs. Mayer and Meltzer, who have made the instrument for me. H. LAMBERT LACK, M.D. Lond., F.R.C.S. Eng. -
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THE illustration shows a new form of weighing machine made by Messrs. Arnold and Sons, London. The machine is.. so constructed that by a simple arrangement of a regulating nut any person can adjust the balance to the greatest nicety. All machines are liable through wear or otherwise to get, out of order and this necessitates sending them to the maker for adjustment, but the manufacturers believe that nmch
im’
trouble and expense will be obviated by the simple nut arrangement introduced into the new machine. The machines can be supplied with or without the stand and measuring standard. They are simple in design, cheap, and reliable and will consequently be found useful adjuncts to the consulting room. They also have the advantage of occupying very little space and so can be put away under a chair or cupboard when not required.
Welbeek-street, W.
SELF-RETAINING RETRACTORS. THE instrument
below is
a pair of selfsuggestion by Messrs. Down Brothers. It is intended for use in such operations as ROYAL INSTITUTION.-The Dean of Canterbury, tracheotomy, suturing divided tendons, removal of needles in the course of a lecture on the history of Canterbury from the palm, and other operations where assistance is Cathedral, delivered at the Royal Institution on March 25th, said that the life of the Canterbury monks in medioeval times often difficult to get and when the hands of an assistant are was a very hard one. They were from 80 to 100 in number, they had to attend 7 services every day, and in winter time they suffered severely from cold, as they had no fires, and the cloisters were not glazed until a comparatively late period-namely, in the fifteenth century. They were. also bled 5 times a year, after which operation they frequently had to go into the infirmary, and, in fact, a con. siderable proportion of them were constantly sick. The
retaining
represented
retractors made at my
I!
i
apt to be in the
way. It is also hoped that its use will tend to obviate the sacrifice of valuable assistance which often occurs when skilled hands are devoted solely to the mechanical purpose of holding open a wound. ARTHUR L. FLEMMING, M,R.C.S. Eng., L.R.C.P. Lond. Freshford, near Bath.
lecture was illustrated by views of the cathedral thrown on the screen and by a number of photographs on the platform which were inspected by the audience at the conclusion of the Dean’s address. Among the photographs was a facsimile of a charter, a fine specimen of handwriting; it was granted by William the Conqueror and signed by him with his mark, which was somewhat in the shape of the symbol -)-, each of the lines being about half an inch in length. Queen Matilda also signed her mark beneath her husband’s and many Norman bishops, together with one Saxon bishop (Wulfstan) and Hubert, the papal legate, wrote their names and titles in full. On the same evening, in the library of the institution, Mr. T. Charters White gave a demonstration of micro-crystals of hydroquinone and hippuric acid, a large number of which were shown under microscopes by polarised light, producing very fine effects.
New Inventions. A NEW SNARE FOR NOSE, THROAT, AND EAR WORK. FOR many operations upon the nose and throat a snare is needed which can be tightened up either rapidly or slowly. In many cases, as for the removal of certain forms of enlarged tonslls, lntenor turbinate hypertrophies, fibrous growths, &c., it is of great portance to be able to draw the wire loop rapidly tight so as to grasp the growth firmly in position and then to cut through it slowly. At the same time the snare must be strong enough and must carry a wire sufficiently thick to cut through the growth however tough it may be. I believe the snare here illustrated will be found to fulfil the above requirements. Its mechanism will be easily understood from the accompanying illustration. The wire loop is tightened at first by drawing on the finger-Ioops, and then when a slow action or more force is required a screw action can be brought into play by releasing the lower finger-loop. Tne instrument is very simple and strong in all its parts, it is made entirely of metal, and can be taken to pieces for cleaning, &,. The wire loop can be quickly and easily attached and i very firmly fixed. The snare works noiselessly. To increase the general usefnlness of the instrument I have had it made with three ends: a strong barrel for very tough growths ; a very fine end for aural use, for nasal polypi, and for other soft growths ; and a curved end for use in the larynx and post-nasal space. I am greatly indebted to an engineering friend, Mr. Bingham, for much help and for designing the method by which the screw is brought into action, and to Messrs. Mayer and Meltzer, who have made the instrument for me. H. LAMBERT LACK, M.D. Lond., F.R.C.S. Eng. -
-
-
......
I
THE illustration shows a new form of weighing machine made by Messrs. Arnold and Sons, London. The machine is.. so constructed that by a simple arrangement of a regulating nut any person can adjust the balance to the greatest nicety. All machines are liable through wear or otherwise to get, out of order and this necessitates sending them to the maker for adjustment, but the manufacturers believe that nmch
im’
trouble and expense will be obviated by the simple nut arrangement introduced into the new machine. The machines can be supplied with or without the stand and measuring standard. They are simple in design, cheap, and reliable and will consequently be found useful adjuncts to the consulting room. They also have the advantage of occupying very little space and so can be put away under a chair or cupboard when not required.
Welbeek-street, W.
SELF-RETAINING RETRACTORS. THE instrument
below is
a pair of selfsuggestion by Messrs. Down Brothers. It is intended for use in such operations as ROYAL INSTITUTION.-The Dean of Canterbury, tracheotomy, suturing divided tendons, removal of needles in the course of a lecture on the history of Canterbury from the palm, and other operations where assistance is Cathedral, delivered at the Royal Institution on March 25th, said that the life of the Canterbury monks in medioeval times often difficult to get and when the hands of an assistant are was a very hard one. They were from 80 to 100 in number, they had to attend 7 services every day, and in winter time they suffered severely from cold, as they had no fires, and the cloisters were not glazed until a comparatively late period-namely, in the fifteenth century. They were. also bled 5 times a year, after which operation they frequently had to go into the infirmary, and, in fact, a con. siderable proportion of them were constantly sick. The
retaining
represented
retractors made at my
I!
i
apt to be in the
way. It is also hoped that its use will tend to obviate the sacrifice of valuable assistance which often occurs when skilled hands are devoted solely to the mechanical purpose of holding open a wound. ARTHUR L. FLEMMING, M,R.C.S. Eng., L.R.C.P. Lond. Freshford, near Bath.
lecture was illustrated by views of the cathedral thrown on the screen and by a number of photographs on the platform which were inspected by the audience at the conclusion of the Dean’s address. Among the photographs was a facsimile of a charter, a fine specimen of handwriting; it was granted by William the Conqueror and signed by him with his mark, which was somewhat in the shape of the symbol -)-, each of the lines being about half an inch in length. Queen Matilda also signed her mark beneath her husband’s and many Norman bishops, together with one Saxon bishop (Wulfstan) and Hubert, the papal legate, wrote their names and titles in full. On the same evening, in the library of the institution, Mr. T. Charters White gave a demonstration of micro-crystals of hydroquinone and hippuric acid, a large number of which were shown under microscopes by polarised light, producing very fine effects.