US380673A - Syringe - Google Patents
Syringe Download PDFInfo
- Publication number
- US380673A US380673A US380673DA US380673A US 380673 A US380673 A US 380673A US 380673D A US380673D A US 380673DA US 380673 A US380673 A US 380673A
- Authority
- US
- United States
- Prior art keywords
- diaphragm
- barrel
- syringe
- piston
- ring
- 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
- 210000002445 Nipples Anatomy 0.000 description 4
- 240000001439 Opuntia Species 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 4
- 238000009877 rendering Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
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
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
- A61M5/2422—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
- A61M5/2425—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
Definitions
- My improvements relate to the class of syringes depending upon a piston, and have for their object an increased facility and certainty of action in such; and my invention consists in the combination and construction, as hereinafter described, and more particularly pointed out in the claims.
- FIG. I is a partial longitudinal section of a syringe having my improvements.
- Fig. II is also a partial longitudinal section showing some of the parts in a changed position from that seen in Fig. I.
- Fig. III is a detail view.
- Fig. IV is a partial plan view in section on the dotted line 00 or of Fig. I.
- Fig. V is a detail view in perspective and in partial section, v
- Fig. VI is a detail in plan view.
- B is a rubber diaphragm in the form approximately of a hollow truncated cone, closed at its apex 6, open at its base 0, and provided with an outward-extending flange, d.
- O is a pistonrod entering centrally the hollow base a of the diaphragm B and secured to the apex b, as shown in Fig. I.
- D is the barrel or fluid-chamber, internally a truncated cone, conforming generally to the exterior surface of nipple B, having its apex opposite the part extending to the pipe e, and having a shoulder, h, at its base left by a 4.0 threaded countersink.
- E is a threaded ring adapted to be screwed into the countersink at the base of cone D, to
- V have a corresponding surface borne against the shoulder h.
- the diaphragm B is adjusted relative to the barrel D, as shown in Fig. I, to have the apex of the diaphragm in close contact with that of the barrel when the flange d rests upon the shoulder h.
- the flange at so placed is bound by screwing the ring E down upon it, and no auxiliary packing is needed to make a tight joint.
- the conical form of the diaphragm prevents its sides from coming in frictional contact during movement of the plunger, and as successive portions of the diaphragm move over the wall of the barrel by a rolling motion there is none of the friction incident to the tight'fitting piston-head.
- the rubber at the apex of the diaphragm is pressed into a concavity in the end of the piston-rod, thus forming an incipient fold, rendering it easier for the piston-rod to commence the inversion of the diaphragm, and a screw, y, binding the, diaphragm to the piston-rod, leaves a flush face upon the apex correspond ing closely to the end of the barrel, so that it may be completely emptied.
- A. syringe consisting, essentially, of a barrel provided with a nozzle, a flexible diaphragm extending across the barrel and attached byits barrel, and a plunger secured to the central edges thereto, and a plunger attached to the part of the nipple and guided at the other end (0 central part of the diaphragm and having a by the ring E, the parts being combined and handle at the end opposite the nozzle, substanoperating substantially as described.
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)
Description
(No Model.)
0. M. BARTON.
SYRINGE.
No. 380,673. Patented Apr. 10, 1888 25/2 Wig 42?.
UNITED STATES PATENT OFFICE.
CHESTER M. BARTON, OF HATFIELD, MASSACHUSETTS.
SYRINGE.
SPECIFICATION forming part of Letters Patent No. 380,673, dated April 10, 1888.
Serial No. 230,379. (No model.)
To all whom it may concern.-
Be it known that I, CHESTER M. BARTON, a citizen of the United States, residing at Hat field, in the county of Hampshire and State of Massachusetts, have invented a new and useful Syringe, of which the following is a specification.
My improvements relate to the class of syringes depending upon a piston, and have for their object an increased facility and certainty of action in such; and my invention consists in the combination and construction, as hereinafter described, and more particularly pointed out in the claims.
The invention is fully illustrated in the accompanying drawings, in which- Figure I is a partial longitudinal section of a syringe having my improvements. Fig. II is also a partial longitudinal section showing some of the parts in a changed position from that seen in Fig. I. Fig. III is a detail view. Fig. IV is a partial plan view in section on the dotted line 00 or of Fig. I. Fig. V is a detail view in perspective and in partial section, v
and Fig. VI is a detail in plan view.
In the drawings, showing enlarged views of the parts of a hypodermic syringe, B is a rubber diaphragm in the form approximately of a hollow truncated cone, closed at its apex 6, open at its base 0, and provided with an outward-extending flange, d.
O is a pistonrod entering centrally the hollow base a of the diaphragm B and secured to the apex b, as shown in Fig. I.
D is the barrel or fluid-chamber, internally a truncated cone, conforming generally to the exterior surface of nipple B, having its apex opposite the part extending to the pipe e, and having a shoulder, h, at its base left by a 4.0 threaded countersink.
E is a threaded ring adapted to be screwed into the countersink at the base of cone D, to
V have a corresponding surface borne against the shoulder h.
The diaphragm B is adjusted relative to the barrel D, as shown in Fig. I, to have the apex of the diaphragm in close contact with that of the barrel when the flange d rests upon the shoulder h. The flange at so placed is bound by screwing the ring E down upon it, and no auxiliary packing is needed to make a tight joint.
The operation is as follows: The parts being in the position seen in Fig. I, the piston-rod C will, upon being drawn out, take with it the smaller end of the diaphragm B. Successive portions of this end are drawn into or invaginated in the larger part, and that part of the rubber cone which is bulged out by being bent or doubled upon itself constitutes a piston-head by hugging closely the inner wall of the barrel. The reverse stroke of the piston performs the act of expulsion, the bulge in the cone of rubber, as seen in Fig. II, following the inner wall of the barrel indifferently in either direction. The qualities of elasticity, as well as flexibility, possessed by rubber permit the cone to be doubled on itself to exert an outward pressure upon the barrel-wall. The conical form of the diaphragm prevents its sides from coming in frictional contact during movement of the plunger, and as successive portions of the diaphragm move over the wall of the barrel by a rolling motion there is none of the friction incident to the tight'fitting piston-head.
Many other advantages might be enumerated as peculiar to a syringe constructed on this principle were it deemed essential.
Although a mere ring, as described, for the purpose of binding the diaphragm B by its flange to the barrel D would be sufficient to enable my principle to be embodied in an effective device, I prefer to extend the ring E to form a guide, 9, to the piston-rod O, as well as to form a stop to prevent the diaphragm B from having movement enough to be entirely inverted. The limit formed to its upward movement, as shown, by the guide 9 leaves a fold in the diaphragm, rendering it easier to start the piston-rod upon a return-stroke.
The rubber at the apex of the diaphragm is pressed into a concavity in the end of the piston-rod, thus forming an incipient fold, rendering it easier for the piston-rod to commence the inversion of the diaphragm, and a screw, y, binding the, diaphragm to the piston-rod, leaves a flush face upon the apex correspond ing closely to the end of the barrel, so that it may be completely emptied.
Now, having described myinvention, what I claim is 1. A. syringe consisting, essentially, of a barrel provided with a nozzle,a flexible diaphragm extending across the barrel and attached byits barrel, and a plunger secured to the central edges thereto, and a plunger attached to the part of the nipple and guided at the other end (0 central part of the diaphragm and having a by the ring E, the parts being combined and handle at the end opposite the nozzle, substanoperating substantially as described.
5 tially as described. CHESTER M. BARTON.
2. The syringe having barrel D, the ring E,
Witnesses: connected to said barrel by ascrew-thread, the R. F. HYDE, elastic nipple secured between the ring and the M. N. SMITH.
Publications (1)
Publication Number | Publication Date |
---|---|
US380673A true US380673A (en) | 1888-04-10 |
Family
ID=2449668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US380673D Expired - Lifetime US380673A (en) | Syringe |
Country Status (1)
Country | Link |
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US (1) | US380673A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653604A (en) * | 1950-12-19 | 1953-09-29 | Jr George N Hein | Injection device |
US20120289931A1 (en) * | 2011-05-13 | 2012-11-15 | Laura Jean Robinson | Medicament kit and method of use |
-
0
- US US380673D patent/US380673A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653604A (en) * | 1950-12-19 | 1953-09-29 | Jr George N Hein | Injection device |
US20120289931A1 (en) * | 2011-05-13 | 2012-11-15 | Laura Jean Robinson | Medicament kit and method of use |
US10092688B2 (en) * | 2011-05-13 | 2018-10-09 | Laura Jean Robinson | Medicament kit and method of use |
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