US144352A - Improvement in cannula-points for syringes - Google Patents
Improvement in cannula-points for syringes Download PDFInfo
- Publication number
- US144352A US144352A US144352DA US144352A US 144352 A US144352 A US 144352A US 144352D A US144352D A US 144352DA US 144352 A US144352 A US 144352A
- Authority
- US
- United States
- Prior art keywords
- points
- syringes
- needles
- cannula
- improvement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QAHFOPIILNICLA-UHFFFAOYSA-N Diphenamid Chemical compound C=1C=CC=CC=1C(C(=O)N(C)C)C1=CC=CC=C1 QAHFOPIILNICLA-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M5/343—Connection of needle cannula to needle hub, or directly to syringe nozzle without a needle hub
Definitions
- This invention relates to cannulated points or needles for hypodermic syringes, and other syringes employin g a point cannulated-t'. c., of tubular formation-the channel being very small and minute.
- Word eanulated refers to a duet or channel of the above-specified character in contradistinction to the ordinary tubular discharge-nozzles of considerable internal diameter, which are not subject to the difliculties and objectionsl heretofore encountered in the use of cannulated points or needles, which difficulties and objections it is the object of my invention to avoid.
- Oannulated points or needles have here tofore been made 4almost invariably of steel. In exceptional cases gold has been used for this purpose; but the cost of this metal, and
- a cannulated point or needle for syringes made of an alloy of aluminum and copper, substantially as herein specied.
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Materials For Medical Uses (AREA)
Description
E. sQNlmMo. V
Y Cannula Points for Syringes.V Y N0. 144,352. Patented Nov.4,1873.
Wbwm w Inyenr.
UNITED STATES PATENT OFFICE.,
EDVARD B. NIMMO, OF BROOKLYN, NEW YORK, ASSIGNOR TO SHEPARD &'
DUDLEY, OF NEW YORK CITY.
IMPROVEMENT IN CANNULA-POINTS FOR SYRNGES.
Specification forming part of Letters Patent No. 144,352, dated November 4, 1873; application filed October 24, 1873.
To all whom it may concern:
Be it known that I, EDWARD B. NIMMO, of Brooklyn, county of Kings and State of New Yord, have invented certain new and useful Improvements in Oannulated Points and Needles for Syringes, of which the following' is a speeit cation:
This invention relates to cannulated points or needles for hypodermic syringes, and other syringes employin g a point cannulated-t'. c., of tubular formation-the channel being very small and minute. It Will be understood that in the course of this specification the Word eanulated refers to a duet or channel of the above-specified character in contradistinction to the ordinary tubular discharge-nozzles of considerable internal diameter, Which are not subject to the difliculties and objectionsl heretofore encountered in the use of cannulated points or needles, which difficulties and objections it is the object of my invention to avoid. Oannulated points or needles have here tofore been made 4almost invariably of steel. In exceptional cases gold has been used for this purpose; but the cost of this metal, and
its extreme liability to bend and get out of` shape, have constituted insuperable obstacles to any extended use of it in this connection. Steel has, therefore, been the metal heretofore generally employed, the point or needle of this material being, in some instances, afterward gilded. The most serious difficulty expert enced in the use of steel points or needles is their liability to rust, causing the channel to be impeded and even entirely stopped up. Unless a ne Wire be introduced through the orilice of the steel point or needle each time it is used the channel Will speedily close up, and Will then defy all efforts to open it. The steel needle or point is thus very liable to oxidize; and, further, is often injuriously affected by the solutions that may be forced through it.
It has been my object to remove the difliculties above specified by making the cannulated points or needles of a material not liable to oxidize, or to be injuriously affected or acted on by the solutions or fluids that may be brought in contact with it- To this end I make said cannulated points or needles of an alloy of aluminum and copper. The proportions of this alloy may vary, but I have found that for my purpose the best results are obtained by combining the ingredients in the proportion of about one part of aluminum to nine parts of coppe'r. Ihe cannulated points or needles are made of this material, the operation of manutacturingthem bein conducted in the usual Way, Well understood by those skilled in the art, and requiring, therefor e, no detailed explanation. his material is not oxidized by the contact of any fluid substances ordinarily used in syringes. It isnot even, so far as I have been able to ascertain, acted upon by caustic solutions or medicaments of any klnd. Its value in the manufacture of cannulated points and needles is, therefore, at once apparent, inasmuch as, by its use, :all the dif-4 fieulties above specified are at once and effectually removed. 'Ihe material, further, is cheap, and points or needles made of it cost no more than the same articles made of steel and gilded, as heretofore customary.
In the manufacture of the points or needles of syringes for hypodermic or endermic injections, my invention will be found of special value and utility.
The accompanying drawing represents one 'of these needles. It will be understood, however, that I make no claim to the special configuration or form of the article; and it will also be understood that the form or structure of the article may vary according to the uses for which it is intended.
What I claim, and desire to secure by Letters Patent, is
A cannulated point or needle for syringes made of an alloy of aluminum and copper, substantially as herein specied.
In testimony whereof I have hereunto signed my name this 21st day of October, 1873.
` EDI/VARI) B. NIMMO. "Witnesses EDWD. W. GIFEORD, GEORGE O. SIMMONS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US144352A true US144352A (en) | 1873-11-04 |
Family
ID=2213765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US144352D Expired - Lifetime US144352A (en) | Improvement in cannula-points for syringes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US144352A (en) |
-
0
- US US144352D patent/US144352A/en not_active Expired - Lifetime
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