SU1454449A1 - Prosthesis for lower extremity - Google Patents

Prosthesis for lower extremity Download PDF

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Publication number
SU1454449A1
SU1454449A1 SU864151815A SU4151815A SU1454449A1 SU 1454449 A1 SU1454449 A1 SU 1454449A1 SU 864151815 A SU864151815 A SU 864151815A SU 4151815 A SU4151815 A SU 4151815A SU 1454449 A1 SU1454449 A1 SU 1454449A1
Authority
SU
USSR - Soviet Union
Prior art keywords
prosthesis
adapter
elastic
protrusions
cavity
Prior art date
Application number
SU864151815A
Other languages
Russian (ru)
Inventor
Анатолий Прохорович Кужекин
Original Assignee
Центральный Научно-Исследовательский Институт Протезирования И Протезостроения
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 Центральный Научно-Исследовательский Институт Протезирования И Протезостроения filed Critical Центральный Научно-Исследовательский Институт Протезирования И Протезостроения
Priority to SU864151815A priority Critical patent/SU1454449A1/en
Application granted granted Critical
Publication of SU1454449A1 publication Critical patent/SU1454449A1/en

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Abstract

This invention relates to prosthetics and prosthetic engineering. The purpose of the invention is to control the stiffness of the parameters of the prosthesis in accordance with the anthropometric characteristics of the disabled person. The prosthetic ankle assembly contains a foot, which is made in the form of a lining 5 with an elastic frame 6 and a cavity 7. An adapter 11 with protrusions 14 and 15 is mounted on the elastic base 8 in cavity 7. The adapter 11 contains a spherical recess 16 for mounting on a spherical support 9. On the protrusions 15 and 14 are installed elastic elements 17 and 18, inside which there are holes and are located the adjusting screws 19 and 20 with nuts 21 and 22. The prosthesis provides the possibility of separate adjustment of the buffers during the front and rear m shocks. 3 il.

Description

The invention relates to prosthetics and prosthesis. The purpose of the invention is the regulation of the rigidity of the parameters of the prosthesis in accordance with the anthropometric characteristics of the disabled person. The prosthetic ankle assembly contains a foot, which is made in the form of a lining 5 with an elastic frame 6 and a cavity 7. An adapter 11 with protrusions 14 and 15 is mounted on the elastic base 8 in cavity 7. The adapter 11 contains a spherical recess 16 for mounting on a spherical support 9. On the protrusions 15 and 14 are installed elastic elements 17 and 18, inside of which there are holes and the adjusting screws 19 and 20 with nuts 21 and 22 are located. The prosthesis provides the possibility of separate adjustment of the buffers in the front and rear shocks. 3 il.

five

1454449

one

2

The invention relates to medical

technology, namely prosthetics.

The purpose of the invention is the regulation of the rigidity of the parameters of the prosthesis in accordance with the anthropometric characteristics of the disabled person.

FIG. 1 shows the scheme of the proposed lower limb prosthesis in the sagittal plane; in fig. 2 is a section of the ankle unit of the proposed lower limb prosthesis in the sagittal plane; in fig. 3 - lower limb prosthesis, frontal projection.

The prosthesis of the lower limb can be assigned at different amplitude levels, which is shown by a dotted line in FIG. 2 for clarity. 1. Using, respectively, the semi-corset 1, the receiving sleeve 2 of the thigh or the sleeve 3 of the lower leg in combination with the foot 4, prosthetics of persons with disabilities at various levels of the amputation of the lower leg are possible.

The ankle prosthesis of the lower extremity contains a foot 4, made in the form of a lining 5 with a lamellar elastic frame 6, inside which a cavity 7 is made. slot and terminal 12 for fixing the tube tibia 13. The adapter 11 contains the rear 14 and the front 15 tabs. The adapter 11 includes a response spherical recess 16 for installation on a spherical support 9. On the protrusions of the adapter 15 and 14 are installed elastic elements 17 and 18, inside of which holes are made and the adjusting screws 19 and 20 with nuts 21 and 22 are located.

The prosthesis of the lower limb is used as follows.

When walking on the prosthesis of the lower limb in the phase of the front push, the start of rolling through the heel of the foot is performed. A spring-loaded change of the ankle angle occurs in all planes: the angle of inclination of the lower leg tube 13 relative to the plate frame 6 changes. The lower leg tube 13 together with the adapter 11 rotates in the spherical support 9, and the elastic element 18 is deformed. Conical clearances between screws 19 and 20 and

lamellar frame 6 provide the required mobility in the ankle joint. In case of further rolling, a contact occurs between the feet and the supporting surface; an elastic element 8 enters the work, which performs the role of a central shock absorber in this phase of the step. With further rolling of the foot through the toe 4, the role of the elastic elements is performed by the elastic frame and the elastic element 8. The use of this bionic principle in the design of the lower limb prosthesis makes it possible to improve the performance of the elastic elements. For example, to implement rotation, the rotation shoulder (the distance from the middle of the buffer 18 relative to the center of the spherical support 9) is increased due to the inherent eccentricity, which reduces the force load on the elastic element 18. Therefore, its working conditions are improved.

The proposed prosthesis allows to increase the functionality of the prosthesis of the lower extremity by partially allowing for the possibility of separate adjustment of stiffness characteristics. In particular, it is possible to separately adjust the buffers during the forward and rear shocks. Improved working conditions of buffers, which allows to improve the asymmetry of walking of people with disabilities on lower limb prostheses.

Claims (1)

  1. Claim
    A prosthesis of the lower limb, containing a receiving sleeve connected to the lower leg tube, on which an artificial foot with a plate and elastic elements is installed, characterized in that, in order to control the stiffness of the parameters of the prosthesis in accordance with the anthropometric characteristics of the disabled person, spherical support, an adapter with a spherical recess and protrusions and adjusting screws, moreover, the foot is made in the form of an elastic frame with a lining, inside which there is a cavity in which it is installed The spherical support on which the adapter is located is fastened on an elastic base, and the elastic elements are mounted on the adapter's protrusions and are connected by adjusting screws to the base.
    1454449
    Φα ?. δ
SU864151815A 1986-11-25 1986-11-25 Prosthesis for lower extremity SU1454449A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU864151815A SU1454449A1 (en) 1986-11-25 1986-11-25 Prosthesis for lower extremity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU864151815A SU1454449A1 (en) 1986-11-25 1986-11-25 Prosthesis for lower extremity

Publications (1)

Publication Number Publication Date
SU1454449A1 true SU1454449A1 (en) 1989-01-30

Family

ID=21269243

Family Applications (1)

Application Number Title Priority Date Filing Date
SU864151815A SU1454449A1 (en) 1986-11-25 1986-11-25 Prosthesis for lower extremity

Country Status (1)

Country Link
SU (1) SU1454449A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593455A (en) * 1994-05-27 1997-01-14 Phillips; Van L. Plug mounted prosthesis
US5976191A (en) 1989-04-13 1999-11-02 Phillips; Van L. Foot prosthesis having curved forefoot
US5993488A (en) * 1994-08-15 1999-11-30 Phillips; Van L. Prosthesis with resilient ankle block
US6206934B1 (en) 1998-04-10 2001-03-27 Flex-Foot, Inc. Ankle block with spring inserts
US6899737B1 (en) 1998-04-10 2005-05-31 Van L. Phillips Foot prosthesis having cushioned ankle
US7063727B2 (en) 2000-10-26 2006-06-20 Van L. Phillips Foot prosthesis having cushioned ankle
US7846213B2 (en) 2004-05-28 2010-12-07 össur hf. Foot prosthesis with resilient multi-axial ankle
US7891258B2 (en) 2004-05-28 2011-02-22 össur hf Method of measuring the performance of a prosthetic foot
US9017421B2 (en) 2011-12-01 2015-04-28 össur hf Prosthetic foot with dual foot blades and vertically offset toe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 560606, кл. А 61 F 1/08, 1977. *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6527811B1 (en) * 1989-04-13 2003-03-04 Van L. Phillips Foot prosthesis with modular foot plate
US5976191A (en) 1989-04-13 1999-11-02 Phillips; Van L. Foot prosthesis having curved forefoot
US5888238A (en) * 1994-05-27 1999-03-30 Phillips; Van L. Plug mounted prosthesis
US5593455A (en) * 1994-05-27 1997-01-14 Phillips; Van L. Plug mounted prosthesis
US5993488A (en) * 1994-08-15 1999-11-30 Phillips; Van L. Prosthesis with resilient ankle block
US6206934B1 (en) 1998-04-10 2001-03-27 Flex-Foot, Inc. Ankle block with spring inserts
US6280479B1 (en) 1998-04-10 2001-08-28 Flex-Foot, Inc. Foot prosthesis having cushioned ankle
US7879110B2 (en) 1998-04-10 2011-02-01 Ossur Hf Foot prosthesis having cushioned ankle
US6899737B1 (en) 1998-04-10 2005-05-31 Van L. Phillips Foot prosthesis having cushioned ankle
US7063727B2 (en) 2000-10-26 2006-06-20 Van L. Phillips Foot prosthesis having cushioned ankle
US7846213B2 (en) 2004-05-28 2010-12-07 össur hf. Foot prosthesis with resilient multi-axial ankle
US7891258B2 (en) 2004-05-28 2011-02-22 össur hf Method of measuring the performance of a prosthetic foot
US7998221B2 (en) 2004-05-28 2011-08-16 össur hf Foot prosthesis with resilient multi-axial ankle
US8025699B2 (en) 2004-05-28 2011-09-27 össur hf Foot prosthesis with resilient multi-axial ankle
US9132022B2 (en) 2004-05-28 2015-09-15 össur hf Foot prosthesis with resilient multi-axial ankle
US9668887B2 (en) 2004-05-28 2017-06-06 össur hf Foot prosthesis with resilient multi-axial ankle
US9017421B2 (en) 2011-12-01 2015-04-28 össur hf Prosthetic foot with dual foot blades and vertically offset toe

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