US202037A - Improvement in pessaries - Google Patents
Improvement in pessaries Download PDFInfo
- Publication number
- US202037A US202037A US202037DA US202037A US 202037 A US202037 A US 202037A US 202037D A US202037D A US 202037DA US 202037 A US202037 A US 202037A
- Authority
- US
- United States
- Prior art keywords
- spring
- pessary
- rubber
- pessaries
- strip
- 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
- 229920001971 elastomer Polymers 0.000 description 8
- 240000002027 Ficus elastica Species 0.000 description 6
- 229910000639 Spring steel Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229920001195 polyisoprene Polymers 0.000 description 6
- 229920001875 Ebonite Polymers 0.000 description 2
- 239000000899 Gutta-Percha Substances 0.000 description 2
- 229920000588 Gutta-percha Polymers 0.000 description 2
- 240000000342 Palaquium gutta Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920000591 gum Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F6/00—Contraceptive devices; Pessaries; Applicators therefor
- A61F6/06—Contraceptive devices; Pessaries; Applicators therefor for use by females
- A61F6/08—Pessaries, i.e. devices worn in the vagina to support the uterus, remedy a malposition or prevent conception, e.g. combined with devices protecting against contagion
Definitions
- This invention relates to an improved pessary as anew article of manufacture; and the invention consists in a pessary composed of a metallic spring-core, lapped, re-enforced by a strengthening-strip, and covered with vulcanized rubber soft enough to be easily bent or collapsed when applying it, and soft enough to yield as a cushion and not distress the wearer.
- Figure 1 represents one of my improved pessaries in side elevation, a portion of the Vulcanized soft-rubber covering being broken away to show the manner of joining the metal core therein illustrated as a sprin g 5 and Fig.
- the pessary shownv in Fig. 1 has a metal core composed of a strip of spring-steel a, such as commonly used for watch-springs. Its
- ends 2 3 are lapped rpon a short piece of spring steel or metal, I); the edges of the superimposed ends 2 3 are notched, and about the three thicknesses is placed a band, 0, the the latter entering the notches in the edges of the strip a, and holding the ends firmly together.
- This strengtheningstrip b prevents the spring-strip a from being bent sharply about the ends of the band 0, which would be apt, in most instances, to cause the strip a to be broken.
- This india-rubber is then subjected to heat, and is vulcanized as soft rubber.
- a pessary of hard rubber is very stifi and liable to be broken, is uncomfortable to the wearer, and cannot be readily fitted to any patient.
- a pessary covered with guttapercha or unvulcanized india-rubber quickly collects sediment, and emits an unpleasant odor, from which the soft vulcanized cover is perfectly free.
- This improved pessary may be bent or folded in any Way necessary to apply it, and
Description
R. LOOKWOOD. Pessary.
No. 202,037. Patehted April 2, I878.
Whqesses.
///gbm N PETERS. FHOTO-IJTNOGRAPHER. WASHING ON. D. C,
UNITED STATES PATENT OFFICE.
RHODES LOOKWOOD, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT IN IPESSARIES.
Specification forming part of Letters Patent No. 202,037, dated April 2, 1878; application filed July 30, 1877.
To all whom it may concern:
Be it known that I, RHODES LocKwooD, of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Pessaries, of which the following is a specification This invention relates to an improved pessary as anew article of manufacture; and the invention consists in a pessary composed of a metallic spring-core, lapped, re-enforced by a strengthening-strip, and covered with vulcanized rubber soft enough to be easily bent or collapsed when applying it, and soft enough to yield as a cushion and not distress the wearer.
Figure 1 represents one of my improved pessaries in side elevation, a portion of the Vulcanized soft-rubber covering being broken away to show the manner of joining the metal core therein illustrated as a sprin g 5 and Fig.
2 is a cross-section thereof.
The pessary shownv in Fig. 1 has a metal core composed of a strip of spring-steel a, such as commonly used for watch-springs. Its
ends 2 3 are lapped rpon a short piece of spring steel or metal, I); the edges of the superimposed ends 2 3 are notched, and about the three thicknesses is placed a band, 0, the the latter entering the notches in the edges of the strip a, and holding the ends firmly together. This strengtheningstrip b prevents the spring-strip a from being bent sharply about the ends of the band 0, which would be apt, in most instances, to cause the strip a to be broken.
Over the spring a is placed the body of india-rubber d, pure gum being preferably used.
This india-rubber is then subjected to heat, and is vulcanized as soft rubber.
To produce a pessary which will expand afterbeingcollapsed, Iam obliged to employ the best of watch-spring steel. Before attaching the ends of the watch-steel together, the temper is drawn therefrom, so as to reduce the tendency of the spring to break when bent near the band. The straightening-strip assists greatly to prevent breakage of the springcore.
A pessary of hard rubber is very stifi and liable to be broken, is uncomfortable to the wearer, and cannot be readily fitted to any patient.
A pessary covered with guttapercha or unvulcanized india-rubber quickly collects sediment, and emits an unpleasant odor, from which the soft vulcanized cover is perfectly free.
This improved pessary may be bent or folded in any Way necessary to apply it, and
it will then spring outward under the action of its spring. This vulcanized soft-rubber covering, free from smell gained in use, and soft, so as to act as a cushion, and not inflame or feel harsh against or ehafe the parts, is a matter of great importance.
I claim I The spring a, lapped as described, and the strengthening-strip and band, in combination with the coating of vulcanized soft rubber, all substantially as described.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
RHODES LOOKWOOD.
Witnesses FRED. W. STEVENS, WM. F. HoLLIs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US202037A true US202037A (en) | 1878-04-02 |
Family
ID=2271442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US202037D Expired - Lifetime US202037A (en) | Improvement in pessaries |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US202037A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2529363A (en) * | 1948-08-12 | 1950-11-07 | Robert J Ballard | Normally expansible anatomical diaphragm |
| US2638896A (en) * | 1948-07-10 | 1953-05-19 | John T Clark | Spring structure |
-
0
- US US202037D patent/US202037A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2638896A (en) * | 1948-07-10 | 1953-05-19 | John T Clark | Spring structure |
| US2529363A (en) * | 1948-08-12 | 1950-11-07 | Robert J Ballard | Normally expansible anatomical diaphragm |
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