DE130863C - - Google Patents
Info
- Publication number
- DE130863C DE130863C DENDAT130863D DE130863DA DE130863C DE 130863 C DE130863 C DE 130863C DE NDAT130863 D DENDAT130863 D DE NDAT130863D DE 130863D A DE130863D A DE 130863DA DE 130863 C DE130863 C DE 130863C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- hollow
- disks
- ring
- elastic
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007906 compression Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000036633 rest Effects 0.000 description 1
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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M5/31513—Piston constructions to improve sealing or sliding
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Den Gegenstand der Erfindung bildet eine Kolbendichtung, bei welcher der abdichtende Kolbenring aus einem mit Luft gefüllten elastischen Hohlring besteht. Dieser elastische Hohlring ist zwischen zwei schwach kegelförmig geformten Kolbenscheiben angeordnet, die in beliebiger Weise gegen einander verstellt werden können, so dafs ein und derselbe Kolben auch für Spritzen verwendet werden kann, deren Durchmesser nicht ganz gleich sind. Vor allen Dingen kann durch eine Veränderung der Pressung des elastischen Hohlringes eine vollkommene Abdichtung des Kolbens im Cylinder erzielt werden. Derartige Kolben eignen sich vorzüglich für zerlegbare Spritzen, weil gerade bei diesen sich der Uebelstand besonders auffallend bemerkbar macht, dafs die einzuspritzende Flüssigkeit häufig hinter den Kolben tritt, wobei die Menge der so verlorenen Flüssigkeit bisher nicht genau controlirt werden konnte.The object of the invention forms a piston seal, in which the sealing Piston ring consists of an elastic hollow ring filled with air. This elastic Hollow ring is arranged between two slightly cone-shaped piston discs, which can be adjusted against each other in any way, so that one and the same Plungers can also be used for syringes whose diameter is not quite the same are. Above all, by changing the compression of the elastic hollow ring a perfect seal of the piston in the cylinder can be achieved. Such pistons are ideally suited for those that can be dismantled Injections, because it is precisely with these that the defect is particularly noticeable makes that the liquid to be injected often comes behind the piston, whereby the The amount of fluid thus lost could not hitherto be precisely controlled.
Der Kolben ist auf beiliegender Zeichnung an einer zerlegbaren Spritze erläutert. Fig. 1 zeigt eine Längsansicht einer solchen Spritze, Fig. 2 einen Querschnitt und Fig. 3 eine Oberansicht. The plunger is explained in the accompanying drawing on a syringe that can be dismantled. Fig. 1 shows a longitudinal view of such a syringe, FIG. 2 shows a cross section and FIG. 3 shows a top view.
Der den' Erfindungsgegenstand bildende Kolben besteht aus zwei Scheiben e und f, zwischen welchen der hohle, elastische, mit Luft gefüllte Dichtungsring d liegt. Die eine Kolbenstange e1 steckt in der anderen, hohlen Kolbenstange f1 und hat am einen Ende ein Gewinde, mittels dessen Mutter h, die an der Hohlstange/1 anliegt, beide Scheiben e und f gegen einander verstellt und der Hohlring d mehr oder minder stark, aber stets elastisch und immer dicht innen am Cylinder anliegend, gegen die Cylinderwand angedrückt werden kann. Die Innenflächen der beiden Scheiben e undy sind etwas kegelförmig gestaltet, so dafs beim Zusammenziehen der Scheiben der hohle Gummiring nach aufsen gegen die Cylinderwand gedrückt wird.The piston forming the subject of the invention consists of two disks e and f, between which the hollow, elastic, air-filled sealing ring d is located. One piston rod e 1 is inserted into the other, hollow piston rod f 1 and has a thread at one end, by means of whose nut h, which rests on the hollow rod / 1 , both disks e and f are adjusted against each other and the hollow ring d more or less strong, but always elastic and always close to the inside of the cylinder, can be pressed against the cylinder wall. The inner surfaces of the two disks e and y are somewhat conical, so that when the disks are drawn together, the hollow rubber ring is pressed outwards against the cylinder wall.
Claims (1)
Kolbendichtung für medizinische Spritzen, dadurch gekennzeichnet, dafs der abdichtende Kolbenring aus einem mit Luft gefüllten elastischen Hohlring besteht, der zwischen den zwei, innen schwach kegelförmigen Kolbenscheiben liegt, welche in bekannter Weise gegen einander verstellt werden können.Patent claim:
Piston seal for medical syringes, characterized in that the sealing piston ring consists of an elastic hollow ring filled with air, which lies between the two slightly conical piston disks on the inside, which can be adjusted relative to one another in a known manner.
Publications (1)
Publication Number | Publication Date |
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DE130863C true DE130863C (en) |
Family
ID=399236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT130863D Active DE130863C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE130863C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5609584A (en) * | 1994-05-18 | 1997-03-11 | Gettig Technologies, Inc. | Adaptor system for use with a syringe |
US6274637B1 (en) | 1996-06-17 | 2001-08-14 | Finacor Anstalt | Plastic recycling process and process for producing plastic materials |
US10508187B2 (en) | 2009-04-29 | 2019-12-17 | Tundra Composites, LLC | Inorganic material composite |
-
0
- DE DENDAT130863D patent/DE130863C/de active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5609584A (en) * | 1994-05-18 | 1997-03-11 | Gettig Technologies, Inc. | Adaptor system for use with a syringe |
US6274637B1 (en) | 1996-06-17 | 2001-08-14 | Finacor Anstalt | Plastic recycling process and process for producing plastic materials |
US10508187B2 (en) | 2009-04-29 | 2019-12-17 | Tundra Composites, LLC | Inorganic material composite |
US11041060B2 (en) | 2009-04-29 | 2021-06-22 | Tundra Composites, LLC | Inorganic material composite |
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