GB574324A - Improvements in or relating to artificial arms - Google Patents

Improvements in or relating to artificial arms

Info

Publication number
GB574324A
GB574324A GB1611643A GB1611643A GB574324A GB 574324 A GB574324 A GB 574324A GB 1611643 A GB1611643 A GB 1611643A GB 1611643 A GB1611643 A GB 1611643A GB 574324 A GB574324 A GB 574324A
Authority
GB
United Kingdom
Prior art keywords
spring
sleeve
lever
gripping
appendage
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
GB1611643A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1611643A priority Critical patent/GB574324A/en
Publication of GB574324A publication Critical patent/GB574324A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/50Prostheses not implantable in the body
    • A61F2/54Artificial arms or hands or parts thereof
    • A61F2/58Elbows; Wrists ; Other joints; Hands

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

574,324. Artificial limbs. BLATCHFORD, W. A. Oct. 1, 1943, No. 16116. [Class 81 (ii)] In an artificial arm having an elbow joint 3 and an appendage 10 adapted to move the forearm member 7 and also to actuate a gripping or hand appliance 23 by mechanism similar to that described in Specification 559,494, means are provided whereby the appliance normally held in its open position by spring means 26 is maintained in its gripping position without the wearer having to keep a pull on the appendage. A coiled spring 27 is mounted on a sleeve 9 fitted to the flexion arc 8 and is secured at one end to the arm 6 of the forearm member 7 and at the other end to a ratchet member 28 freely mounted on the sleeve. On rotation of the sleeve in one direction the coils of the spring bind on the sleeve and hold the plunger 13 in a depressed position and the jaws 24 in their gripping position. To release the locking, a lever 29 coacting with the ratchet member 28 is operated by hand or by an appendage to disengage the spring from the sleeve. On raising the lever 29 to a higher position, a spring-controlled pawl 32 engages with a tooth 34, thus holding the locking means out of action until a still further movement of the lever releases the pawl and allows the member 28 to return to its original position. The gripping member 23 may be rotatable in, and detachable from, the forearm and may be yieldably or positively locked therein, for example by the means described in Specification 550,886. The Provisional Specification refers to an alternative form of locking device in which the flexion arc is formed with rack teeth, or connected with a member having rack teeth, adapted to be engaged by a pawl on a spring-controlled pivoted lever member.
GB1611643A 1943-10-01 1943-10-01 Improvements in or relating to artificial arms Expired GB574324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1611643A GB574324A (en) 1943-10-01 1943-10-01 Improvements in or relating to artificial arms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1611643A GB574324A (en) 1943-10-01 1943-10-01 Improvements in or relating to artificial arms

Publications (1)

Publication Number Publication Date
GB574324A true GB574324A (en) 1946-01-01

Family

ID=10071462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1611643A Expired GB574324A (en) 1943-10-01 1943-10-01 Improvements in or relating to artificial arms

Country Status (1)

Country Link
GB (1) GB574324A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605476A (en) * 1947-12-05 1952-08-05 A J Hosmer Corp Wrist mechanism for artificial arms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605476A (en) * 1947-12-05 1952-08-05 A J Hosmer Corp Wrist mechanism for artificial arms

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