- Email: [email protected]
New Inventions.
955 each line as a comparison, and it will be noticed that this is often very much smaller than the common object, but for ordinary sight it will be found to be just as clearly defined at the marked distance. It is not contended that these types can in any way supersede the use of Snellen’s types, nor that when the figure is distinguished at the distance marked anything more than an approximate
im Text. Jena : Gustav Fischer. Price 9.50 marks, This is the concluding Pp. 721-1063. translation into German of the well-known portion of this It is illustrated with all the Albarran. text-book of Professor which plates and figures appeared in the original. The translation has been well made, and the book should have a wide circulation in German speaking countries. teils
farbigen Figuren
on
New Inventions. A NEW STRICTURE GUIDE. instrument which I have devised consists of a short hollow tube, size No. 12 catheter, length 8 inches, made The internal diameter is in metal and gum-elastic. less than that of a No. 12 catheter, owing to greater thickness of the wall of the tube, as the lumen is only intended to receive small catheters and bougies, not the larger ones, owing to the nature of the use for which it is devised. The opening at one end, A, is concentric, that at the other end, B, being eccentric, even more so than represented in the diagram, so that the outer and inner surfaces at one part of the circumference run into one another. This instrument will often be found valuable in difficult cases of narrow urethral strictures where other procedures fail. The guide is passed into the urethra and shouldered down on to the face of the stricture. A small soft catheter, or bougie, is then inserted into the
THIS
If the opening of the stricture be lumen of the guide. concentric and the appropriate end, A, of the guide face it, the catheter or bougie will pass at once through the opening of the stricture or after a little manipulation. If this be unsuccessful, however, the guide is removed from the urethra, reversed and reinserted, so that the eccentric opening B now faces the stricture. The catheter or bougie is again inserted and manipulated in the usual way, whilst the guide is gradually rotated till its and the stricture’s openings are facing, when they can be caused to pass through and onwards. After successful passage the guide is removed from the urethra, the catheter or bougie meanwhile and after being retained in sittl. This device is most useful in these difficult cases, as will be realised after trial, and as I have experienced. If it succeeds it is the means of saving the patient from an internal urethrotomy or something Illuch worse - namely, an external urethrotomy. The instrument is made bv the Holborn Surgical Tnstrnmfynt G. S. THOMPSON, F.R.C.S. Eng. Company. Kimberley. South Africa. V
_"
_
TEST-TYPES FOR YOUNG CHILDREN AND ILLITERATES. THE "common object"test-types here illustrated have been arranged to correspond as nearly as possible with the letters of Snellen’s types-6/6, 6/9, .6., and so on. The limbs and minor characteristics of animals and parts of common objects cannot always be in the same relative size as the limbs of letters are to their scientific arrangement for Snellen’s types. The trunk of the elephant or the antennae of insects must, in order to strike the eye by their similitude, be shown of a relatively larger size as compared with the bulk of the animal or insect. The body being compared to the thicker parts of the letter and the legs to the thinner parts, it is evident that in true proportions the trunk of the elephant, antennas, &c., or similar distinctive marks of an animal would be on too small a scale to be visible at the distance at which the grosser parts would be clearly seen. These grosser parts would be unrecognisable without the smaller characteristics, so each figure has been drawn of such a size that it may be recognised as a whole by a person with normal vision at the distances for which it is marked for use. A standard letter, or letters, is given
appreciation of the acuity of vision can be ascertained. It is of great importance in some cases to gauge the vision of Other young children before they know their letters. children decline to recognise letters who would be proud to show their acquaintance with animals and other objects of interest. The types may also be useful for persons of weak intellect, or for natives unacquainted with the Latin letters. The cards are to be obtained from Messrs. F. Davidson and Cn
29 Great Portland-street London. vV
H. BEALE
COLLINS, M.R.C.S. Eng., D.P.H.
Kingston-on-Thames.
ESTABLISHMENT
OF
A
SCHOOL
CLINIC
AT
Lancashire town of 34,000 inhabitants, has resolved to establish a school clinic in the town at a cost of L300 per year or a -2d. rate. The scheme includes the appointment of a full-time nurse, while the school medical officer is to give a minimum of one half-day per week in connexion with the clinic. The chairman of the Education Committee, in introducing the motion for the establishment of the clinic, said that the medical officer in his last report stated that he had examined 1465 children, relatively one-quarter of the children, in their schools. There were 103 with slight defects of the throat and 54 who required immediate treatment. If they multiplied that number by four they had 216 children that required imme diate treatment, and 412 with slight defects. Among onefourth of the children examined there were 146 with slight defects of the eyes, and 81 who required spectacles, and over 300 who were suffering from lung complaints, chest There were 1000 children who had five troubles, &c. or more bad teeth, and over 150 cases of defective hearing requiring immediate attention. A large number of people seemed to think they were making an innovation by the establishment of a school clinic. From the national medical officer’s report for 1910 there were 47 authorities who had employed a school nurse, 12 who subscribed to nursing associations, 72 who provided spectacles, 34 who made contributions to hospitals, and there were 31 authorities who had school clinics of their own. There were 16 who had dental clinics, and 12 had open-air schools. The estimated cost of the scheme was £300, but a large proportion of the third hundred was for preliminary equipment, including .620 for eyesight apparatus, £ 30 for rent, and £50 -for other There would be 9100 for the. nurse. and apparatus, &c. £100 for the medical officer. The sum does not; however, include payment for the services of a dentist.
NELSON.-Nelson,
a
im Text. Jena : Gustav Fischer. Price 9.50 marks, This is the concluding Pp. 721-1063. translation into German of the well-known portion of this It is illustrated with all the Albarran. text-book of Professor which plates and figures appeared in the original. The translation has been well made, and the book should have a wide circulation in German speaking countries. teils
farbigen Figuren
on
New Inventions. A NEW STRICTURE GUIDE. instrument which I have devised consists of a short hollow tube, size No. 12 catheter, length 8 inches, made The internal diameter is in metal and gum-elastic. less than that of a No. 12 catheter, owing to greater thickness of the wall of the tube, as the lumen is only intended to receive small catheters and bougies, not the larger ones, owing to the nature of the use for which it is devised. The opening at one end, A, is concentric, that at the other end, B, being eccentric, even more so than represented in the diagram, so that the outer and inner surfaces at one part of the circumference run into one another. This instrument will often be found valuable in difficult cases of narrow urethral strictures where other procedures fail. The guide is passed into the urethra and shouldered down on to the face of the stricture. A small soft catheter, or bougie, is then inserted into the
THIS
If the opening of the stricture be lumen of the guide. concentric and the appropriate end, A, of the guide face it, the catheter or bougie will pass at once through the opening of the stricture or after a little manipulation. If this be unsuccessful, however, the guide is removed from the urethra, reversed and reinserted, so that the eccentric opening B now faces the stricture. The catheter or bougie is again inserted and manipulated in the usual way, whilst the guide is gradually rotated till its and the stricture’s openings are facing, when they can be caused to pass through and onwards. After successful passage the guide is removed from the urethra, the catheter or bougie meanwhile and after being retained in sittl. This device is most useful in these difficult cases, as will be realised after trial, and as I have experienced. If it succeeds it is the means of saving the patient from an internal urethrotomy or something Illuch worse - namely, an external urethrotomy. The instrument is made bv the Holborn Surgical Tnstrnmfynt G. S. THOMPSON, F.R.C.S. Eng. Company. Kimberley. South Africa. V
_"
_
TEST-TYPES FOR YOUNG CHILDREN AND ILLITERATES. THE "common object"test-types here illustrated have been arranged to correspond as nearly as possible with the letters of Snellen’s types-6/6, 6/9, .6., and so on. The limbs and minor characteristics of animals and parts of common objects cannot always be in the same relative size as the limbs of letters are to their scientific arrangement for Snellen’s types. The trunk of the elephant or the antennae of insects must, in order to strike the eye by their similitude, be shown of a relatively larger size as compared with the bulk of the animal or insect. The body being compared to the thicker parts of the letter and the legs to the thinner parts, it is evident that in true proportions the trunk of the elephant, antennas, &c., or similar distinctive marks of an animal would be on too small a scale to be visible at the distance at which the grosser parts would be clearly seen. These grosser parts would be unrecognisable without the smaller characteristics, so each figure has been drawn of such a size that it may be recognised as a whole by a person with normal vision at the distances for which it is marked for use. A standard letter, or letters, is given
appreciation of the acuity of vision can be ascertained. It is of great importance in some cases to gauge the vision of Other young children before they know their letters. children decline to recognise letters who would be proud to show their acquaintance with animals and other objects of interest. The types may also be useful for persons of weak intellect, or for natives unacquainted with the Latin letters. The cards are to be obtained from Messrs. F. Davidson and Cn
29 Great Portland-street London. vV
H. BEALE
COLLINS, M.R.C.S. Eng., D.P.H.
Kingston-on-Thames.
ESTABLISHMENT
OF
A
SCHOOL
CLINIC
AT
Lancashire town of 34,000 inhabitants, has resolved to establish a school clinic in the town at a cost of L300 per year or a -2d. rate. The scheme includes the appointment of a full-time nurse, while the school medical officer is to give a minimum of one half-day per week in connexion with the clinic. The chairman of the Education Committee, in introducing the motion for the establishment of the clinic, said that the medical officer in his last report stated that he had examined 1465 children, relatively one-quarter of the children, in their schools. There were 103 with slight defects of the throat and 54 who required immediate treatment. If they multiplied that number by four they had 216 children that required imme diate treatment, and 412 with slight defects. Among onefourth of the children examined there were 146 with slight defects of the eyes, and 81 who required spectacles, and over 300 who were suffering from lung complaints, chest There were 1000 children who had five troubles, &c. or more bad teeth, and over 150 cases of defective hearing requiring immediate attention. A large number of people seemed to think they were making an innovation by the establishment of a school clinic. From the national medical officer’s report for 1910 there were 47 authorities who had employed a school nurse, 12 who subscribed to nursing associations, 72 who provided spectacles, 34 who made contributions to hospitals, and there were 31 authorities who had school clinics of their own. There were 16 who had dental clinics, and 12 had open-air schools. The estimated cost of the scheme was £300, but a large proportion of the third hundred was for preliminary equipment, including .620 for eyesight apparatus, £ 30 for rent, and £50 -for other There would be 9100 for the. nurse. and apparatus, &c. £100 for the medical officer. The sum does not; however, include payment for the services of a dentist.
NELSON.-Nelson,
a