Creating a User-Inventor Community: How Disabled People Innovated and Marketed Disability in Early Nineteenth-Century America.

Early nineteenth-century America's robust trade in medical and health care products is richly documented, yet many scholars have overlooked just what role people with impairments played in that industry as inventors and retailers, forming relationships with clients based on their shared experiences of disability. A study of newspaper advertisements, patents, organizational records, medical accounts, and objects suggests that many impaired and formerly impaired producers marketed products to impaired consumers, creating an organic and unselfconscious network of disabled people who made, sold, and bought knowledge and devices about and for disability. Recovering this world of disabled inventors, retailers, and their clients reveals how disability fueled innovation in early nineteenth-century America, expanding scholarly understandings of who participated in and profited from the burgeoning medical and health care economy. This study also suggests that the market was an early venue of disability community where people came together around their common bond.

Divine's CO2 Absorber of 1867.

Chemist and inventor Silas R. Divine (1838-1912) sold ammonium nitrate and other anesthesia supplies in New York City. He offered a carbon dioxide absorber for the purpose of rebreathing nitrous oxide. Like his colleague Gardner Q. Colton, he denied the need for nitrous oxide to be supplemented with O2 gas.

James M. Osgood: An Inventor Behind Sprague's "Self-Watching" Apparatus for G.Q. Colton's Revival of Nitrous-Oxide Anesthesia.

Inventor J.M. Osgood enabled a fellow Massachusetts inventor, A.W. Sprague, to manufacture heat-regulated nitrous-oxide generators. These generators assisted New Yorker G.Q. Colton in opening exodontia franchises nationwide which revived the use of nitrous-oxide anesthesia.

Tadeusz Krwawicz, MD: The inventor of cryosurgery in ophthalmology.

Tadeusz Krwawicz (1910-1988) pioneered the use of cryosurgery in, as ophthalmology. The idea arose in 1959 while experimenting because on lyophilization to store corneas and lenses for transplantation it was difficult to remove the lens without damage the capsule was usually torn. Subsequent experiments on rabbits revealed that touching the lens with a wire cooled to 203°K (-70°C) resulted in firm attachment of the lens capsule and subcapsular masses. A cryoextractor was developed and employed for clinical use in cataract extraction, likewise in intumescent cataracts and lens subluxation. Cataract surgery utilizing cryoextraction led to substantial progress to ophthalmology by reducing the number of complications, particularly capsule rupture, and resulted in achieving better outcome compared to other methods. This surgery soon and for almost 20 years became a routine method used all around the world in cataract removal. Simultaneously, Krwawicz developed techniques for corneal refractive surgery-partial lamellar removal of the corneal stroma and temporary interlaminar introduction of a plastic disk in order to change the corneal curvature. Krwawicz presented other ophthalmic interests-his research concerned immunology, histology, histochemistry, biochemistry of ocular tissue, and mainly corneal and experimental surgery with a particular focus on the pathology of the cornea.

Tapping on the chest of history. Lost and found memories of Leopold Auenbrugger, inventor of percussion, in Austria and beyond

Leopold Auenbrugger (1722-1809), the inventor of percussion, joins René Laennec as the father of modern physical examination. On the occasion of the bicentennial of the invention of the stethoscope (1816), I went in search of the material footprints left by Auenbrugger in his homeland, Austria. This attempt led me to construct a rather fragmented picture, with some disillusionment (e.g. about his tomb) and some pleasant surprise (e.g. a new interpretation of the extant iconography). Apparently, posterity has not been sufficiently mindful of or grateful towards this great innovator of medical science. All the more reason for knowing and protecting what is left of him: buildings, monuments, portraits… Anyway, Leopold Auenbrugger is honored and implicitly remembered today, as he was in the past, every time a doctor practices the percussion on the chest of a patient (i.e. billions of times each year).

François-Antoine-Henri Descroizilles (1781-1825), demostrador real de química, boticario, inventor y químico industrial: padre del análisis volumétrico. Parte II / François-Antoine-Henri Descroizilles (1781-1825), démonstrateur royal de chimie, apothecary, inventor and industrial chemist: the father of titrimetric analysis. Part II

En la primera parte de esta contribución se han abordado la condiciones de contorno del nuevo método de blanqueo que idea Berthollet tras el descubrimiento del cloro (ácido muriático oxigenado) por Scheele. Esta segunda se centra en lo concerniente a la relevante figura del farmacéutico Descroizilles, y a las variadas facetas a las que se dedica (i.e. analista, inventor, químico industrial), destacando los aspectos de su vida y de su obra. Descroizilles procede de una dinastía de farmacéuticos destacada en Dieppe, ejerce en primer lugar en Rouen, marchando a París más tarde en donde llega a ser miembro del Consejo de Manufacturas. Descroizilles afronta la problemática de la sidra que afecta a la región de Normandía como consecuencia de las malas prácticas de conservación. Con ayuda de la Casa de Fontenay saca adelante el método de blanqueo por cloro en escala industrial. Idea los procedimientos y aparatos necesarios para llevar a cabo el análisis volumétrico, en especial un sistema de medida que denomina "berthollímetro" en honor de Berthollet, colaborando con el ingeniero Chevalier en la fabricación y venta del mismo. Descroizilles estudia en detalle los álcalis del comercio. Finalmente, se tratan aspectos menos conocidos relacionados con los polvos de gas y el alumbre para concluir con la contribución de Gay Lussac a la volumetría, fundamental para consolidar la obra emprendida por Descroizilles

In the first part of this contribution, the boundary conditions of the new bleaching method proposed by Berthollet after the discovery of chlorine (oxygenated muriatic acid) by Scheele have been addressed. This second part focuses more on everything concerning the relevant figure of the pharmacist Descroizilles, and the various facets (i.e. analyst, inventor, industrial chemist) in which he is involved, highlighting the aspects of his life and his work. Descroizilles comes from a dynasty of pharmacists stationed in Dieppe. He first established in Rouen, arriving in Paris later, and becoming a member of the Council of Manufactures. Descroizilles tackles the problem of cider that affects the Normandy region as a consequence of bad conservation practices. With the help of the Casa de Fontenay, it takes the chlorine bleaching method on an industrial scale. Descroizilles devises the necessary apparatus and procedures to carry out the titrimetric analysis, in special a measuring system that denominates "berthollimeter" in honour of Berthollet, collaborating with the engineer Chevalier in the manufacture and sale of the same. Descroizilles studies in detail the alkalis of the commerce. Finally, a review is made of other lesser-known aspects related to bleaching powder and alum, ending with the contribution of Gay Lussac to the titrimetry, fundamental to consolidate the work undertaken by Descroizilles

François-Antoine-Henri Descroizilles (1781-1825), demostrador real de química, boticario, inventor y químico industrial: padre del análisis volumétrico". Parte 1 / François-Antoine-Henri Descroizilles (1781-1825), démonstrateur royal de chimie, apothecary, inventor and industrial chemist: the father of titrimetric analysis. Part I

En esta contribución se pasa revista a la vida y obra de François-Antoine-Henry Descroizilles, personaje polifacético, reconocido como un químico hábil y sabio por eminentes científicos de su época, que ejerce como profesor de química, boticario, y químico industrial. Descroizilles contribuye a dar una solución al problema de la sidra latente en Normandía primero y al blanqueo de los tejidos por el nuevo método de Berthollet en la zona de Rouen después. A este último respecto propone un método de determinar la concentración de cloro, nudo gordiano del problema. Descroizilles puede considerarse con todo justicia como padre del análisis volumétrico, pero su ingenio va mucho más allá y su nombre puede asociarse a una variedad de inventos. En la aproximación que se realiza se hace hincapié en el contexto del nuevo proceso de blanqueo por cloro, aspecto no contemplado siempre con suficientemente profundidad en trabajos previos sobre Descroizilles. En la primera parte de esta contribución vamos a situar y estudiar las condiciones de contorno de este tema, en una época en la que se despierta en las mentes el interés por las artes químicas. Sin embargo, en el desarrollo de la industria del blanqueo con cloro no solo ejercen influencia los aspectos técnicos de los procesos involucrados, sino también los factores sociales y económicos. Aspectos de la vida y obra de Descroizilles, incluyendo temas tales como la problemática de la sidra, inventos, polvos de gas, alumbre, y la contribución de Gay Lussac a la volumetría, serán objeto de un posterior estudio (segunda parte)

In this contribution the life and work of François-Antoine-Henry Descroizilles is reviewed. He is recognized as a multifaceted person, and as a skilled and wise chemist by eminent scientists of his time. Descroizilles developed his professional career as a chemistry teacher, apothecary, and industrial chemist, contributing firstly to give a solution to the latent problem of cider in Normandy, and to the bleaching of tissues by the new method of Berthollet in the area of Rouen later. He proposes on this respect a (redox) titrimetric method of determining the concentration of chlorine, Gordian knot of the problem. Descroizilles can rightly on this way be considered as the father of titrimetric analysis, but his ingenuity goes much further, and his name can be associated to a variety of inventions. In the approach that is carried out here, emphasis is previously placed on the context of the new chloric bleaching, aspect that might not be always treated with enough depth in previous papers on Descroizilles. In the first part of this paper the boundary conditions of this topic will be located and studied, in a time, in which the intent of the study of the chemical arts rapidly acquires great importance. The development of the chlorine bleaching industry is influenced by the technical aspects of the processes involved, but also by the social and economic factors. Aspects of the life and work of Descroizilles, including topics such as the problem of cider, inventions, bleaching power and alum, as well as the contributions of Gay Lussac to titrimetry will be the subject of a future report (second part)

Henryk Hilarowicz: The Forgotten Polish Inventor and Pioneer of the Interscalene Brachial Plexus Block.

Professor Henryk Hilarowicz was a Polish surgeon who first described the technique of brachial plexus block performed in the interscalene groove between the anterior and middle scalene muscles. The article devoted to the technique appeared in the German-language journal Zentralblatt für Chirurgie in 1925, 45 years before Alon Winnie, who is widely regarded as the originator of this method, published his paper in Anesthesia & Analgesia in 1970.

Wireless: The Life and Death of Guglielmo Marconi.

With little training in physics, Guglielmo Marconi developed the invention that stunned the world by wirelessly connecting ships and continents. Ten years before his death, he sustained a myocardial infarction followed by unmistakable angina pectoris. His personality and unhappy family life limited his ability to cope with his disease and to deal with Italy's most respected physicians. But their descriptions of his diagnosis and management are surprisingly few. Poor record keeping, intentional news suppression of his failing health or limited medical opportunities could be the reason for this lack of information. He died in 1937 when the value of electrocardiograms and X-rays were recognized (he had neither), but therapeutic options were severely limited. To gain insight into his care, we compared contemporary Italian understanding of coronary heart disease to British and American teachings. When he died of an acute coronary syndrome, heart failure and dysrhythmias, he was attended only by medical staff, but by none of his large family.

Between the lines: The 50th anniversary of long-term central venous catheters.

BACKGROUND: Tunneled central venous catheters (CVC) were developed five decades ago. Since then, several clinician-inventors have created a variety of catheters with different functions. Indeed, many catheters have been named after their inventor. Many have wondered who the inventors were of each catheter, and what specifically inspired their inventions. Many of these compelling stories have yet to be told. DATA SOURCE: A literature review of common catheters and personal communication with inventors. Only first person accounts from inventors or those close to the invention were used. CONCLUSIONS: CVCs are now essential devices that have saved countless lives. Though the inventors have earned the honor of naming their catheters, it may be reasonable to consider more consistent terminology to describe these catheters to avoid confusion.

Ryszard Rodzinski-A Forgotten Polish Inventor and Pioneer of Combined Spinal-Epidural Anesthesia.

Dr. Ryszard Rodzinski was a Polish surgeon who, in spite of his short life, had a productive career. His most important discovery was a safer method of performing regional anesthesia for abdominal surgery. The first description of combined spinal epidural anesthesia is generally attributed to Soresi in 1937. In the early 20th century, Rodzinski invented a novel technique, "combined lumbosacral anesthesia," which combined lumbar spinal anesthesia and sacral epidural anesthesia. During the 19th Meeting of Polish Surgeons in July 1922 in Warsaw, Rodzinski presented an article entitled "On Combined Lumbosacral Anaesthesia," in which he described this technique used in surgical clinic in Lwów since October 1921. Given this presentation, Rodzinski could be considered to have made the first known presentation of the combined spinal and epidural anesthesia.