US51778A - Improvement in elastic syringes - Google Patents
Improvement in elastic syringes Download PDFInfo
- Publication number
- US51778A US51778A US51778DA US51778A US 51778 A US51778 A US 51778A US 51778D A US51778D A US 51778DA US 51778 A US51778 A US 51778A
- Authority
- US
- United States
- Prior art keywords
- elastic
- bulb
- syringes
- pipes
- 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
- 238000010276 construction Methods 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 6
- 210000001503 Joints Anatomy 0.000 description 4
- 230000001808 coupling Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000006421 Davidson Oxazole synthesis reaction Methods 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000009877 rendering 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/1424—Manually operated pumps
Definitions
- H. E. DAVIDsoN of Gloucester, in the county of Essex and State of Massachusetts, and O. H. DAVIDSON, late of Oharlestown, in the county of Middlesex and State aforesaid, (dcceased,) did invent an Iniproved Elastic Syringe-Bulb, and l, H. E. DAVIDSON, as aforesaid, for myself and as administrator of the estate of said O. H. DAVID- soN, do hereby declare that the following, taken in connection with the drawing' which accompaniesand forms part of this specification,is a description of said invention sufficient to enable those skilled in the art to practice it.
- ⁇ represents a bulb having' this construction, A denoting the elastic bulb, and B B the fiexible pipes, made in one piece with said bulb, being' formed therewith in the process of Vulcanizing ⁇ and molding the bulb.
- Vhat is claimed is- The improved elastic s'yring'e-bulb having' flexible pipes madein one piece therewith.
- HERMAN E. DAVIDSON HERMAN E. DAVIDSON, Administrator of the estate of O. H. Davidson.
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)
- External Artificial Organs (AREA)
Description
UNITED STATES HERMAN E. DAVIDSON, OF GLOUCESTER, FOR HIMSELF AND AS ADMINIS- TRATOR OF THE ESTATE OF O. H. DAVIDSON, (DEOEASED,) LATE OF CHARLESTOWN, MASSAGHUSETTS.
IMPROVEMENT IN ELASTIC SYRINGES.
Specification forming part of Letters Patent No. 5 1,778, dated December 26, 1865.
To aZZ 'whom t 'may concern:
Be it known that H. E. DAVIDsoN, of Gloucester, in the county of Essex and State of Massachusetts, and O. H. DAVIDSON, late of Oharlestown, in the county of Middlesex and State aforesaid, (dcceased,) did invent an Iniproved Elastic Syringe-Bulb, and l, H. E. DAVIDSON, as aforesaid, for myself and as administrator of the estate of said O. H. DAVID- soN, do hereby declare that the following, taken in connection with the drawing' which accompaniesand forms part of this specification,is a description of said invention sufficient to enable those skilled in the art to practice it.
In the Inanufacture of elastic bulb-syringes having flexible induction and ednction pipes and a suitable valvular arrangement, the practice heretofore has been to attach the flexible induction and eduction pipes to the bull) by means ot'metallic or rigid connections or coupling's. Much difficulty is experienced in rendering the joints between the rubber and the couplings perfectly tight or iinpervious to the passage of the injection fluid when pressure is applied to the bulb after filling it, and various methods of constructin g and packing' these joints have been devised and used, none of which, however, are free from objection.
lt is the object of this :invention to remedy this objectionable construction, and to effect such result the flexible pipes are molded with the bulb, fornning` an elastic bulb and flexible induction and eduction pipes all in one piece, and it is this improved construction which constitutes the invention, or, in other words, an elastic syringe-bulb, having' fiexible pipes integral therewith, to the outer ends of which the metal or rigid val\'eboxes and pipes are to be applied.
The drawing,` represents a bulb having' this construction, A denoting the elastic bulb, and B B the fiexible pipes, made in one piece with said bulb, being' formed therewith in the process of Vulcanizing` and molding the bulb.
It Will be obvious, with this improveinent, that the syring'e can be made a much more efficient and reliable instrument than when the fiexiblc pipes B B are made as separate pieces from the elastic bulb and attached thereto by metal or rigid oonnections. v
Vhat is claimed is- The improved elastic s'yring'e-bulb having' flexible pipes madein one piece therewith.
In witness whereof I have hereunto set niy hand this 23d day of August, A. D. 1865.
HERMAN E. DAVIDSON. HERMAN E. DAVIDSON, Administrator of the estate of O. H. Davidson.
Witnesses D. PATTEN, G. F. BOWKER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US51778A true US51778A (en) | 1865-12-26 |
Family
ID=2121327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US51778D Expired - Lifetime US51778A (en) | Improvement in elastic syringes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US51778A (en) |
-
0
- US US51778D patent/US51778A/en not_active Expired - Lifetime
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