GB175193A - Improvements in or relating to means for locking the joints of artificial limbs - Google Patents

Improvements in or relating to means for locking the joints of artificial limbs

Info

Publication number
GB175193A
GB175193A GB559921A GB559921A GB175193A GB 175193 A GB175193 A GB 175193A GB 559921 A GB559921 A GB 559921A GB 559921 A GB559921 A GB 559921A GB 175193 A GB175193 A GB 175193A
Authority
GB
United Kingdom
Prior art keywords
springs
carried
limb member
joint
pivot pin
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
Application number
GB559921A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEORGE MAURICE SANDLING
Original Assignee
GEORGE MAURICE SANDLING
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GEORGE MAURICE SANDLING filed Critical GEORGE MAURICE SANDLING
Priority to GB559921A priority Critical patent/GB175193A/en
Publication of GB175193A publication Critical patent/GB175193A/en
Expired legal-status Critical Current

Links

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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/64—Knee joints
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/54—Artificial arms or hands or parts thereof
    • A61F2/58—Elbows; Wrists ; Other joints; Hands
    • A61F2/582—Elbow joints
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/68—Operating or control means
    • A61F2002/6854—Operating or control means for locking or unlocking a joint

Abstract

175,193. Sandling, G. M. Feb. 18, 1921. Limbs, artificial.-The joints of artificial limbs are locked in desired positions by the frictional engagement of a spring carried by one limb member with a cylindrical block, around which the spring is wound, fast upon the pivot pin carried by the other limb member. A knee joint, Fig. 1, normally unlocked, is locked by the weight of the wearer being put on the lower limb member and comprises two springs E carried by a bracket C attached to the lower limb member and loosely coiled round a cylinder A<1> fast on the pivot pin A which is carried by the thigh B. When weight is put on the lower limb member, a pivoted link C<1> and slotted link C<2> permit the bracket C to rise relatively to the pivot pin, causing the spring frictionally to engage the cylinder to lock the joint. The elbow-joint, Figs. 3 and 4, is normally locked through springs G<1> carried by the framework B<1> of the upper limb member engaging drums G fast on the pivot pin F carried by the lower member, being held in contact therewith by springs J. The joint is unlocked when a cord H<2> attached to a lever H<1> is pulled, the motion of the lever H<1> being transmitted to a second lever H acting in opposition to the springs J thereby releasing the springs G' from the drums. An ordinary operating-cord K for the lower limb member is provided. The device may also be used for securing artificial hands &c. to wrist sockets, as shown in Fig. 5. Springs M<2> carried by the wrist socket normally bind upon a pin L projecting from the hand-plate to retain it in desired positions. The loose ends of the springs are attached to a spring- pressed plunger N which is pressed inwards to release the joint.
GB559921A 1921-02-18 1921-02-18 Improvements in or relating to means for locking the joints of artificial limbs Expired GB175193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB559921A GB175193A (en) 1921-02-18 1921-02-18 Improvements in or relating to means for locking the joints of artificial limbs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB559921A GB175193A (en) 1921-02-18 1921-02-18 Improvements in or relating to means for locking the joints of artificial limbs

Publications (1)

Publication Number Publication Date
GB175193A true GB175193A (en) 1922-02-16

Family

ID=9799111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB559921A Expired GB175193A (en) 1921-02-18 1921-02-18 Improvements in or relating to means for locking the joints of artificial limbs

Country Status (1)

Country Link
GB (1) GB175193A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573032A (en) * 1947-12-05 1951-10-30 A J Hosmer Corp Elbow lock mechanism
US2591781A (en) * 1949-03-23 1952-04-08 John G Catranis Knee lock for artificial legs and control therefor
US2646793A (en) * 1950-04-13 1953-07-28 Swiech Edward Self-locking and unlocking pivot joint for leg braces
US3739404A (en) * 1971-01-05 1973-06-19 Ipos Kg Braked joint for prostheses and orthoses
US3982279A (en) * 1975-03-06 1976-09-28 Mario Capella Valenti Mechanical prosthesis of the knee
US4268923A (en) * 1980-01-17 1981-05-26 Lamberto Staffieri Thigh prosthesis
US4371990A (en) * 1979-01-18 1983-02-08 Lamberto Staffieri Thigh prosthesis

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573032A (en) * 1947-12-05 1951-10-30 A J Hosmer Corp Elbow lock mechanism
US2591781A (en) * 1949-03-23 1952-04-08 John G Catranis Knee lock for artificial legs and control therefor
US2646793A (en) * 1950-04-13 1953-07-28 Swiech Edward Self-locking and unlocking pivot joint for leg braces
US3739404A (en) * 1971-01-05 1973-06-19 Ipos Kg Braked joint for prostheses and orthoses
US3982279A (en) * 1975-03-06 1976-09-28 Mario Capella Valenti Mechanical prosthesis of the knee
US4371990A (en) * 1979-01-18 1983-02-08 Lamberto Staffieri Thigh prosthesis
US4268923A (en) * 1980-01-17 1981-05-26 Lamberto Staffieri Thigh prosthesis

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