US1612116A

US1612116A - Medicament ampulla

Info

Publication number: US1612116A
Application number: US14935A
Authority: US
Inventors: Heublein Wilhelm Oskar
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-02-02
Filing date: 1925-03-12
Publication date: 1926-12-28
Anticipated expiration: 1943-12-28

Description

Dec. 28 1926.

1,612,116 w. o. HEUBLElN MEDI GAMENT AMPULLA Filed March 112, 1925 Patented Dee. 2S? lge.;

Wil

WILHELM OSKAR HEJBLEN,

F FRANKFORT-ON-THE-MAIN, GERMANY.

MEBICAFINT AMP'ULLA.

Application iled March 12, 1925, Serial No. M335, and in Great Britain February 2, 1925.

This invention relates to ampullae in which accurately closed Quantities ot liquid medicaments are contained and which generally comprise several compartments separated from one another by easily brealrable partitions so that the dry or gaseous substances may be mixed shortly before use with liquid solvents or other gases and dry substances.

It the liquid medicament has to be withdrawn from such ampullte by means ot a syringe for injectiom this is easy as the injection needle forms a long probosciditorm body which can be inserted down to the bottom ot a longl ampulla even through narrow openings. lt however the liquid medicament has to be withdrawn by means o'r' a simple piston syringe as commonly iis-edior rinsing cavities in the body an intermediate vessel is required which is often not at disposal at disintected state.

According` to the invention the ampnlla is 1provided at the end which is to be opened, prior to the use with a tubular extension for holding and guiding hermetically the front end or the entire cylinder ot a piston syringe. On the bottom of the ampulla which has to be broken and which merges into the tubular extension an upwardly directed breakingr lever is preferably mounted which is made in a shape known per se for ampullee comprising several compartments and the free end et which lever may be imprisonedL7 in a manner known per se in a narrowing oi the ampulla. An arrangement, which from the point ot view ot hygienics is especially advantageous, can be obtained if in the. tubular extension of the ampulla a syringe cylinder oi the .simplest kind is removably located but so that it is hermetically seal-ed, said cylinder containing` a piston made for instance of wood and designed to be used only once. A device is thus obtained which is simple to malte, easy to use and tulfills all requirements as regards cleanliness and freedom from germs.

An embodiment of the invention is shown on the accompanying drawing, in which:

Fig. l shows the improved ampulla.

Fig. 2 shows how the piston syringe is filled. y

Fig. 3 shows the empty anipulla.

Fig. l shows the piston syringe filled and ready for use.

Referring to the drawing, 1 is the ampulla iilled with the liquid medicament. At the lower end of the ampulla l a tubular extension 3 is arranged, which is clearly shown in Fig. 3. The partition l between the tubular extension 3 and the ampulla l is Curved upward and carries a breaking lever 5 which is imprisoned in a narrowing 6 at the upper end ot the ampulla l. lfn the tubular eXtension 3 of the ampulla l the piston syringe, shown in Fig. 4, is inserted so that the cylinder 7 oi the syringe is accommodated in the tubular extension 3. The rounded point 8 of the piston syringe engages with the bottom 4 of the ampulla l. When the piston syringe is inserted into the tubular eXtension 3 ot the ampulla the piston 9 is pushed home and then a thin cover 11 for instance made from acetylcellulose which has previously been softened in a solvent, is fixed over the rear end ot the tubular extension 3 and the handle 10 ot' the piston 9. Any other means, known per se, may evidently be used for airtightly closing the tubular extension.

The making ready ot the piston syringe shown in Fig. 4 from the condition shown in l is carried out as tollowsz- The point 12 of the ampulla is broken off whereby the free end oi' the breaking lever 5 becomes accessible. The lever 5 is then pushed to the side whereby the hollow partition 4 is broken. The cover 11 over the handle l0 of piston 9 is cut oil3 and by pulling back ot the piston 9 the liquid medicament 2 is sucked into the cylinder 7 of the syringe. This sucking in of the liquid medicament trom the ampulla into the cylinder 7 is illustrated in Fig. 2. As soon as the liquid medicament 2 has been sucked into the pistonsyringe this syringe is removed from the tubular extension 3 so that an empty ampulla as shown in Fig. 3, remains and a filled syringe ready for use, shown in Fig. 4.

rihe airtight insertion and covering of the piston syringe into the tubular extension 3 of the ampulla may evidently be carried out in any other convenient manner.

l cla-im:-

1. An ampulla for the easy withdrawing` oi" a liquid medicament tor piston syringes, comprising in combination with the ampulla proper? a tubular extension at the rear end oft' the ampulla and open at the rea-r end, a piston syringe accommodated in this tubular extension and a cover of suitable mouldable and easily destructible material placed over the open end of said tubular extension.

2. An ampulla Jfor the easy withdrawing ot a liquid medicament for piston syringes,

comprising in combination With the ainpuila proper, L tubular extension at the rear end of the ampulla and open at the rear end, a piston syl-inge accommodated in this tubular extension, a, cover of suitable mouldable and easily destruotible material Closing said open end of said tubular extension, a narrowing between said tubular extension and said ampulla propel', a narrowing in the upper p01*- ton of said anipulla proper, and a breaking 10 level' supported on said nari-owing between said ainpuila and said tubular extension and extending .into Said ampuiizi and into said second menoned narrowing.

n testimony whereof I aiix my signature.

1WILHELM OSKAR HEUBLEIN.