Prosthetic walking foot
First Claim
Patent Images
1. A prosthetic walking foot comprising:
- (a) a connector (2) that is fixable to a tube (3) of an artificial limb of a subject;
(b) at least one upper lamina (1c, 1d) extending from the connector and having a concavity facing in a forward direction;
(c) a lower lamina (1a) comprising an initial portion (9) defining an under-heel, an intermediate portion (10) comprising a hump and a final portion (12) defining a foot front, said lower lamina being joined to the at least one upper lamina solely in a region of the lower lamina disposed between said initial portion (9) and said final portion (12); and
(d) a rear lamina (1b) extending from the connector and comprising a curved region (5) having a concavity facing in the forward direction and an end portion (8) that is disposed under the hump of the intermediate portion of the lower lamina (1a), wherein the connector, the at least one upper lamina, the lower lamina and the rear lamina are constructed and arranged such that, in use, with the subject walking with the connector fixed to the tube of the artificial limb, the walking foot enters into contact with the ground at each of the following three points;
the initial portion (9) of the lower lamina, the final portion (12) of the lower lamina and the end portion (8) of the rear lamina.
1 Assignment
0 Petitions
Accused Products
Abstract
The prosthetic foot (1) consists of three or four laminas, a lower lamina (1a) defining the under-heel and the foot front, a rear lamina (1b) defining the heel and functioning as the Achilles tendon and as the soleus muscle, two upper laminas (1c and 1d) defining the front part of the foot and performing the function of the front tibial muscle, and a connector (2) in proximity to the ankle to serve as a coupling for a tube (3).
10 Citations
21 Claims
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1. A prosthetic walking foot comprising:
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(a) a connector (2) that is fixable to a tube (3) of an artificial limb of a subject; (b) at least one upper lamina (1c, 1d) extending from the connector and having a concavity facing in a forward direction; (c) a lower lamina (1a) comprising an initial portion (9) defining an under-heel, an intermediate portion (10) comprising a hump and a final portion (12) defining a foot front, said lower lamina being joined to the at least one upper lamina solely in a region of the lower lamina disposed between said initial portion (9) and said final portion (12); and (d) a rear lamina (1b) extending from the connector and comprising a curved region (5) having a concavity facing in the forward direction and an end portion (8) that is disposed under the hump of the intermediate portion of the lower lamina (1a), wherein the connector, the at least one upper lamina, the lower lamina and the rear lamina are constructed and arranged such that, in use, with the subject walking with the connector fixed to the tube of the artificial limb, the walking foot enters into contact with the ground at each of the following three points;
the initial portion (9) of the lower lamina, the final portion (12) of the lower lamina and the end portion (8) of the rear lamina. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A prosthetic walking foot comprising:
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a connector (2) that is fixable to a tube (3) of an artificial limb of a subject; (b) at least one upper lamina (1c, 1d) extending from the connector and having a concavity facing in a forward direction; (c) a lower lamina (1a) comprising an initial portion (9) defining an under-heel, an intermediate portion (10) comprising a hump and a final portion (12) defining a foot front, said lower lamina being joined to an underside of the at least one upper lamina in a region of the lower lamina disposed between said initial portion (9) and said final portion (12) such that all portions of the lower lamina are disposed under the upper lamina; and (d) a rear lamina (1b) extending from the connector and comprising a curved region (5) having a concavity facing in the forward direction and an end portion (8) that is disposed under the hump of the intermediate portion of the lower lamina (1a), wherein the connector, the at least one upper lamina, the lower lamina and the rear lamina are constructed and arranged such that, in use, with the subject walking with the connector fixed to the tube of the artificial limb, the walking foot enters into contact with the ground at each of the following three points;
the initial portion (9) of the lower lamina, the final portion (12) of the lower lamina and the end portion (8) of the rear lamina.
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19. A prosthetic walking foot comprising:
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(a) a connector (2) that is fixable to a tube (3) of an artificial limb of a subject; (b) at least one-upper lamina (1c, 1d) extending from the connector and having a concavity facing in a forward direction; (c) a lower lamina (1a) comprising an initial portion (9) defining an under-heel, an intermediate portion (10) comprising a hump and a final portion (12) defining a foot front, said lower lamina being joined to the at least one upper lamina in a region of the lower lamina disposed between, said initial portion (9) and said final portion (12); and (d) a rear lamina (1b) extending from the connector at the rear of the at least one upper lamina when considered from the forward direction and comprising a curved region (5) having a concavity facing in the forward direction and an end portion (8) that is disposed under the hump of the intermediate portion of the lower lamina (1a), said curved region having a center of curvature that is disposed under the at least one upper lamina with the rear lamina diverging away from the upper lamina in a portion of the curved region, wherein the connector, the at least one upper lamina, the lower lamina and the rear lamina are constructed and arranged such that, in use, with the subject walking with the connector fixed to the tube of the artificial limb, the walking foot enters into contact with the ground at each of the following three points;
the initial portion (9) of the lower lamina, the final portion (12) of the lower lamina and the end portion (8) of the rear lamina. - View Dependent Claims (20, 21)
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Specification