US598343A - baenaed - Google Patents
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- Publication number
- US598343A US598343A US598343DA US598343A US 598343 A US598343 A US 598343A US 598343D A US598343D A US 598343DA US 598343 A US598343 A US 598343A
- Authority
- US
- United States
- Prior art keywords
- chamber
- pressure
- clasp
- pointer
- spring
- 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
- 210000001367 Arteries Anatomy 0.000 description 6
- 241000282619 Hylobates lar Species 0.000 description 2
- 241000539716 Mea Species 0.000 description 2
- 241000220324 Pyrus Species 0.000 description 2
- 206010040003 Sensation of pressure Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 235000021017 pears Nutrition 0.000 description 2
- 229920001195 polyisoprene Polymers 0.000 description 2
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
Definitions
- the invention yhas for its object improvel xo .nientsin sphyg'momanometers whereby not only the blood-pressure lin the arteries of man or animal but also the pulsations of the 'arterie's are clearly indicated on a scale', the meanv arterial vblood-pressure being indicated in our im'pzfbtfed instrument by the maximum Jof such- 'pulsatio'ns
- Our invention is illustrated in the accom-4 panyi gdrawingsjnwhich* Figure 1 isa view of the apparatus cornplete.
- Fig. 2 is aside elevation
- Fig. 3 isa plan, ofthe manomet-er
- Fig. 4.- is a ⁇ section of part-ot the spring-clasp separately.
- Tle chamber e is fixed to the foundation- -plate j, and it has fixedI to its upperV side an armxt, 4conmected by link Z with a small adjustable lever m', fixed on the pivoted shaft m2.
- This lever m2 is connected by link a and chainn with a pulley g? on the spindle g' of the hand or pointer g, and to such spindle g is attached one end of a spiral spring o, the other end of which isconnected to one of the pillars p of a frame arm p2, extending over the chamber e.
- the tubed, attached to the pump d, is provided With a valve t' similarto that used With pneumatic tires, whereby the air-pressure can be gradually relieved When desired by slightly rotating the part z" until the maximum pulsa-l tion of the hand or pointer gis obtained, and itis also provided with an ordinary non-return valve to prevent lossof pressure except When the relief-valve is operated.
- the mode of using the apparatus is asfollows:
- the spring-clasp a is. lightly fixed, say, around the arm. Pressure is then applied by means of the pump d until the' rubber bag b on the inside of the clasp applies suflicie'nt pressure on the arteries to give the maximum pulsation of the hand or pointer g and also to give the pressures atwhich the pulsation apv pears and disappears as the pressure is raised.
- a sphygmomanometer comprising, in co1n bination, a spring-clasp, a flexible air-bag on the inside of ,such clasp, an air-pump, a tube connecting such flexible 'bag pump and a manomet-er comprising a liexible chamber connected to said iiexible bag ⁇ anda pointer mechanically connected to theiiexfible chamber of the manometer so as @to be moved thereby -in response to the pressure, and pulsa-tion of pressure, on the flexible rubber bag.
Description
No Model.) i. 2 Sheets-sheet 1.
L.V E. HLL 8v H. L. BARNARD.
SPEIYGMOMANOMBTBR lmanned Peb. 1, 1898.
l2 Shepts-SlneL :2.
L. E. HILL 88 81.8888818813. SPHYGMOMANOMETER.
No. 588,848. Pate-m8681188. 1,1898.
(No Model.)
V UNITED STATES PATENT 'OEFicEQ LEONARD E; HILL AND 'HAROLD L.
- AssIGNoRs or ONE-THIRD To JAMES JOSEPH BARNARD, or LONDON, ENGLAND,
mens, or SAME PLACE.
f s .PHvcm'c-lvlANolvia-Tsn.
SPECIFICATION forming part'of Letters Patent lN o. 598,343, dated February 1, 1898. Lppncaitn mea July 9,1897. sam No. 643,951. (No moa-e1.)
du whom tmay concern:
Be it known that We, LEOXARD E. HILL and HAROLD L. BARNARD, subjects of the Queen of GreatBritain,residin g at London, England, have invented certain new and useful lmprovements i-n Sphygmomanometers,of which the following is a full, clear, and exact de',-
scription.
1 The invention yhas for its object improvel xo .nientsin sphyg'momanometers whereby not only the blood-pressure lin the arteries of man or animal but also the pulsations of the 'arterie's are clearly indicated on a scale', the meanv arterial vblood-pressure being indicated in our im'pzfbtfed instrument by the maximum Jof such- 'pulsatio'ns Our invention is illustrated in the accom-4 panyi gdrawingsjnwhich* Figure 1 isa view of the apparatus cornplete.. Fig. 2 is aside elevation, and Fig. 3 isa plan, ofthe manomet-er; and Fig. 4.- is a `section of part-ot the spring-clasp separately.
anjaneroid barometer, but'notb exhausted.
, positionwhen the Accord-ing to Vour invention We `employ a spring-'clasp a, /preferably of steel, covered With-india-rubber and lined with a laccid rubber bag b and made to partially or entirely encircle the arm or other part of the body. We :connect this rubber bag b by a tube c Wthan air-pump cl and With the tube e' of a inan'ometer having a chamber e like that of lSuch'chamber has pressing. on its outer side a spring f, which'is compressed by the pres-- sure of air within the chamber e and acts to .retnrnthe side of said chamber to its normal pressu're is relieved. This chamber operates a hand or pointer g by simianero'id barometer,
m,'ito which latter is alsoiixed a longer lever lar vmechanism to that used in an ordinary as hereinbei'ore described, and said hand or pointer g moves over a suitably-divided scale h'. 4
Tle chamber e is fixed to the foundation- -plate j, and it has fixedI to its upperV side an armxt, 4conmected by link Z with a small adjustable lever m', fixed on the pivoted shaft m2. This lever m2 is connected by link a and chainn with a pulley g? on the spindle g' of the hand or pointer g, and to such spindle g is attached one end of a spiral spring o, the other end of which isconnected to one of the pillars p of a frame arm p2, extending over the chamber e.
The tubed, attached to the pump d, is provided With a valve t' similarto that used With pneumatic tires, whereby the air-pressure can be gradually relieved When desired by slightly rotating the part z" until the maximum pulsa-l tion of the hand or pointer gis obtained, and itis also provided with an ordinary non-return valve to prevent lossof pressure except When the relief-valve is operated.
The mode of using the apparatus is asfollows: The spring-clasp a is. lightly fixed, say, around the arm. Pressure is then applied by means of the pump d until the' rubber bag b on the inside of the clasp applies suflicie'nt pressure on the arteries to give the maximum pulsation of the hand or pointer g and also to give the pressures atwhich the pulsation apv pears and disappears as the pressure is raised.
. Having fully described our invention, what We desire to claim and secure by Letters Patent is A sphygmomanometer, comprising, in co1n bination, a spring-clasp, a flexible air-bag on the inside of ,such clasp, an air-pump, a tube connecting such flexible 'bag pump and a manomet-er comprising a liexible chamber connected to said iiexible bag `anda pointer mechanically connected to theiiexfible chamber of the manometer so as @to be moved thereby -in response to the pressure, and pulsa-tion of pressure, on the flexible rubber bag.
In testimony whereof We affix tures in presence of two Witnesses. v
. LEONARD E. HILL. HAROLD L. BARNARD.
, lVitnesses:
E. J. B. MILLS, CLAUDE K. MILLS.
p, carried by the fixed with the air.
oursigna-
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US598343A true US598343A (en) | 1898-02-01 |
Family
ID=2666986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US598343D Expired - Lifetime US598343A (en) | baenaed |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US598343A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2972348A (en) * | 1959-07-08 | 1961-02-21 | Frederick W Macdonald | Anti-thumb sucking device |
| US3189024A (en) * | 1962-05-31 | 1965-06-15 | Dynamics Corp America | Blood pressure transducer |
| US3906937A (en) * | 1972-10-25 | 1975-09-23 | Para Medical Instr Corp | Blood pressure cuff and bladder and apparatus embodying the same |
| US4190057A (en) * | 1977-12-27 | 1980-02-26 | Thoratec Laboratories Corporation | Device for determining the patentcy of a blood vessel |
| US4202347A (en) * | 1975-06-05 | 1980-05-13 | Sacks Alvin H | Method and apparatus for determining blood pressure |
| US4331155A (en) * | 1977-10-11 | 1982-05-25 | Sacks Alvin H | Digital cuff apparatus for determining blood pressure without use of a stethoscope |
-
0
- US US598343D patent/US598343A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2972348A (en) * | 1959-07-08 | 1961-02-21 | Frederick W Macdonald | Anti-thumb sucking device |
| US3189024A (en) * | 1962-05-31 | 1965-06-15 | Dynamics Corp America | Blood pressure transducer |
| US3906937A (en) * | 1972-10-25 | 1975-09-23 | Para Medical Instr Corp | Blood pressure cuff and bladder and apparatus embodying the same |
| US4202347A (en) * | 1975-06-05 | 1980-05-13 | Sacks Alvin H | Method and apparatus for determining blood pressure |
| US4331155A (en) * | 1977-10-11 | 1982-05-25 | Sacks Alvin H | Digital cuff apparatus for determining blood pressure without use of a stethoscope |
| US4190057A (en) * | 1977-12-27 | 1980-02-26 | Thoratec Laboratories Corporation | Device for determining the patentcy of a blood vessel |
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