US446125A - Syringe - Google Patents
Syringe Download PDFInfo
- Publication number
- US446125A US446125A US446125DA US446125A US 446125 A US446125 A US 446125A US 446125D A US446125D A US 446125DA US 446125 A US446125 A US 446125A
- Authority
- US
- United States
- Prior art keywords
- piston
- syringe
- rod
- reservoir
- nut
- 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
- 238000010276 construction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 241000196435 Prunus domestica subsp. insititia Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000007787 solid Substances 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
- A61M5/31—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
Definitions
- My invention relates to pistons used in syringes, pumps, and other apparatus where solid pistons are used, and which. is especially adapted to hypodermic and other surgical syringes.
- Its object is to provide a self-lubricating piston, and thereby avoid removing the piston from the barrel of the cylinder to oil the same.
- My invention consists in the construction and combination of parts described herein, and pointed out in the claim.
- Figure 1 is a side view of a hypodermic syringe without the point or nozzle embodying my invention.
- Fig. 2 is a longitudinal section of Fig. 1 on the line 90 cc.
- Fig. 3 is an enlarged detail section of the piston with the packing-rings removed. 7
- A is a glass barrel.
- B is the piston. 13' is the piston-rod.
- B is a cap which closes the pistonreservoir, and D is a metallic frame which embraces and protects the barrel and provides for closing the ends thereof with the screw-caps D and D.
- the piston B has a chamber 1), which forms the reservoir.
- the cap 13 screws on and off the rod, so that it may be removed to fill the reservoir with oil. I-Vhen the reservoir is filled, the cap B is screwed on, which prevents the oil from spilling, protects it from dirt, and makes a convenient hold for the hand in reciprocating the piston.
- the lower end of the piston-rod has a reduced extension I), which has a bore 1) through part of its length. At or near the bottom of the said bore 1) is made one or more lateral holes b, opening into it.
- Said reduced extension I) carries two expansible packing-rings O O.
- a central nut E is screwed upon the reduced extension of the piston-rod, said nut having lateral holes 6, corresponding with the lateral holes b of said rod.
- a second nut E is screwed upon said rod below the lower packing-ring 0.
- cl is a threaded stud for attaching a syringe point or nozzle.
- the oil in the reservoir 1) feeds through the bore 1) and the holes 6 in thenut E.
- ⁇ Vhat I claim as my invention is- In a syringe, the combination of a hollow piston-rod B, provided at its inner end with a reduced extension I), having a central bore 1) communicating with lateral openings 1/, two expansible packing-rings O G, a central nut E between said packing-rings and provided with holes communicating with the openings 19, and a retaining-nut E, the
Description
(NO Model.)
B. SCHI-RMER.
SYRINGE.
Patented Feb. 10,1891,
QUitmeooeo W4 m ezm (/6; align map z UNITED STATES PATENT OFFICE.
EDIVARD SCIIIRMER, OF CLEVELAND, OHIO.
SYRING E.
SPECIFICATION forming part Of Letters Patent No. 446,125, dated February 10, 1891.
Application filed March 26, 1890. Serial No. 345,446. (No model.)
To all whom it may concern:
Be it known that I, EDWARD SCHIRMER, a citizen of the United States, residingat Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Pistons, of which the following, with the accompanying drawings, is a specification.
My invention relates to pistons used in syringes, pumps, and other apparatus where solid pistons are used, and which. is especially adapted to hypodermic and other surgical syringes.
Its object is to provide a self-lubricating piston, and thereby avoid removing the piston from the barrel of the cylinder to oil the same.
My invention consists in the construction and combination of parts described herein, and pointed out in the claim.
Figure 1 is a side view of a hypodermic syringe without the point or nozzle embodying my invention. Fig. 2 is a longitudinal section of Fig. 1 on the line 90 cc. Fig. 3 is an enlarged detail section of the piston with the packing-rings removed. 7
In the different figures of the drawings, A is a glass barrel. B is the piston. 13' is the piston-rod. B is a cap which closes the pistonreservoir, and D is a metallic frame which embraces and protects the barrel and provides for closing the ends thereof with the screw-caps D and D.
In the syringe illustrated the piston B has a chamber 1), which forms the reservoir. The cap 13 screws on and off the rod, so that it may be removed to fill the reservoir with oil. I-Vhen the reservoir is filled, the cap B is screwed on, which prevents the oil from spilling, protects it from dirt, and makes a convenient hold for the hand in reciprocating the piston. The lower end of the piston-rod has a reduced extension I), which has a bore 1) through part of its length. At or near the bottom of the said bore 1) is made one or more lateral holes b, opening into it. Said reduced extension I) carries two expansible packing-rings O O. A central nut E is screwed upon the reduced extension of the piston-rod, said nut having lateral holes 6, corresponding with the lateral holes b of said rod. A second nut E is screwed upon said rod below the lower packing-ring 0.
cl is a threaded stud for attaching a syringe point or nozzle.
In the operation of my invention the oil in the reservoir 1) feeds through the bore 1) and the holes 6 in thenut E.
In the drawings and in the description my invention is shown and described as applied to a hypodermic syringe.
The particular construction of reservoir and piston are applicable to syringes generally. 1
ith such modifications as will readily suggest themselves to persons skilled in the artmy invention may be adapted to other uses where it is desired to lubricate the piston.
\Vhat I claim as my invention is- In a syringe, the combination of a hollow piston-rod B, provided at its inner end with a reduced extension I), having a central bore 1) communicating with lateral openings 1/, two expansible packing-rings O G, a central nut E between said packing-rings and provided with holes communicating with the openings 19, and a retaining-nut E, the
parts being constructed and arranged in the manner and for the purpose set forth.
In testimony whereof I affix my signature,
in presence of two witnesses, this 4th day of March, 1890.
EDIVARD SOHIRMER. Witnesses:
J. A. OSBORNE, H. S SPRAGUE.
Publications (1)
Publication Number | Publication Date |
---|---|
US446125A true US446125A (en) | 1891-02-10 |
Family
ID=2515016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US446125D Expired - Lifetime US446125A (en) | Syringe |
Country Status (1)
Country | Link |
---|---|
US (1) | US446125A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2539510A (en) * | 1949-06-03 | 1951-01-30 | Bristol Lab Inc | Hypodermic syringe |
US2578812A (en) * | 1947-12-20 | 1951-12-18 | Kollsman Paul | Injection syringe |
US2622595A (en) * | 1947-12-20 | 1952-12-23 | Kollsman Paul | Device for hypodermic injections |
US5163904A (en) * | 1991-11-12 | 1992-11-17 | Merit Medical Systems, Inc. | Syringe apparatus with attached pressure gauge |
US5201753A (en) * | 1989-03-17 | 1993-04-13 | Merit Medical Systems, Inc. | Totally self-contained, digitally controlled, disposable syringe inflation system, and method for monitoring, displaying and recording balloon catheter inflation data |
US5259838A (en) * | 1992-06-18 | 1993-11-09 | Merit Medical Systems, Inc. | Syringe apparatus with attached pressure gauge and timer |
US5425713A (en) * | 1989-03-17 | 1995-06-20 | Merit Medical Systems, Inc. | System and method for monitoring, displaying and recording balloon catheter condition interval and inflation location data |
US5431629A (en) * | 1989-03-17 | 1995-07-11 | Merit Medical Systems, Inc. | System and method for monitoring, displaying and recording balloon catheter condition interval data |
US5449344A (en) * | 1992-06-18 | 1995-09-12 | Merit Medical Systems, Inc. | Syringe apparatus with pressure gauge and detachable timer |
US5449345A (en) * | 1989-03-17 | 1995-09-12 | Merit Medical Systems, Inc. | Detachable and reusable digital control unit for monitoring balloon catheter data in a syringe inflation system |
US5453091A (en) * | 1989-03-17 | 1995-09-26 | Merit Medical Systems, Inc. | RF transmission module for wirelessly transmitting balloon catheter data in a syringe inflation system |
US5458571A (en) * | 1989-03-17 | 1995-10-17 | Merit Medical Systems, Inc. | System and method for monitoring, displaying and recording balloon catheter condition interval data |
US5472424A (en) * | 1994-04-05 | 1995-12-05 | Merit Medical Systems, Inc. | Syringe with volume displacement apparatus |
-
0
- US US446125D patent/US446125A/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2578812A (en) * | 1947-12-20 | 1951-12-18 | Kollsman Paul | Injection syringe |
US2622595A (en) * | 1947-12-20 | 1952-12-23 | Kollsman Paul | Device for hypodermic injections |
US2539510A (en) * | 1949-06-03 | 1951-01-30 | Bristol Lab Inc | Hypodermic syringe |
US5449345A (en) * | 1989-03-17 | 1995-09-12 | Merit Medical Systems, Inc. | Detachable and reusable digital control unit for monitoring balloon catheter data in a syringe inflation system |
US5201753A (en) * | 1989-03-17 | 1993-04-13 | Merit Medical Systems, Inc. | Totally self-contained, digitally controlled, disposable syringe inflation system, and method for monitoring, displaying and recording balloon catheter inflation data |
US5458571A (en) * | 1989-03-17 | 1995-10-17 | Merit Medical Systems, Inc. | System and method for monitoring, displaying and recording balloon catheter condition interval data |
US5385549A (en) * | 1989-03-17 | 1995-01-31 | Merit Medical Systems, Inc. | Digitally controlled, disposable syringe inflation system, and method for monitoring, displaying balloon catheter inflation data |
US5425713A (en) * | 1989-03-17 | 1995-06-20 | Merit Medical Systems, Inc. | System and method for monitoring, displaying and recording balloon catheter condition interval and inflation location data |
US5431629A (en) * | 1989-03-17 | 1995-07-11 | Merit Medical Systems, Inc. | System and method for monitoring, displaying and recording balloon catheter condition interval data |
US5453091A (en) * | 1989-03-17 | 1995-09-26 | Merit Medical Systems, Inc. | RF transmission module for wirelessly transmitting balloon catheter data in a syringe inflation system |
US5163904A (en) * | 1991-11-12 | 1992-11-17 | Merit Medical Systems, Inc. | Syringe apparatus with attached pressure gauge |
US5449344A (en) * | 1992-06-18 | 1995-09-12 | Merit Medical Systems, Inc. | Syringe apparatus with pressure gauge and detachable timer |
US5259838A (en) * | 1992-06-18 | 1993-11-09 | Merit Medical Systems, Inc. | Syringe apparatus with attached pressure gauge and timer |
US5472424A (en) * | 1994-04-05 | 1995-12-05 | Merit Medical Systems, Inc. | Syringe with volume displacement apparatus |
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