JP4964285B2 - Artificial limb - Google Patents

Description

The present invention relates to a definition limb is attached to the stump of such limbs.

  Conventionally, as this kind of artificial limbs and liners for artificial limbs, there is one described in Patent Document 1. For example, in the artificial leg 2001 shown in FIG. 17, the liner 2002 is attached to the stump S of the foot, and the stump S with the liner 2002 attached is attached to the socket 2003. The liner 2002 is formed of a material such as synthetic leather, and has a shape that matches the shape of the stump S. On the other hand, the socket 2003 has an insertion portion 2004 into which the cut end portion S in a state where the liner 2002 is mounted, and the insertion portion 2004 has a shape of the cut end portion S to which the liner 2002 is mounted. It has a shape tailored to The socket 2003 is made of, for example, fiber reinforced resin. In addition, the prosthetic leg 2001 is provided with a mounting tool 2010 for fastening the socket 2003 to the stump S to which the liner 2002 is mounted. The mounting tool 2010 includes a fixed piece 2011 that is fixed to the socket 2003, and a belt 2012 that is wound around the stump S where the liner 2002 is mounted (in this example, the knee). Then, as shown by an arrow in FIG. 17, such a mounting tool 2010 prevents the artificial leg 2001 from falling off the stump S or the artificial leg 2001 from rotating with respect to the stump S.

Utility Model Registration No. 3129695

  However, in such a conventional artificial leg 2001, the mounting tool 2010 is required separately from the liner 2002 and the socket 2003 in order to suppress the dropout, rotation, etc. of the artificial leg 2001 as described above. A complicated work of wrapping the belt 2012 of the mounting tool 2010 around the stump S is forced each time. Therefore, in the conventional artificial leg 2001, there is a problem that the mounting work becomes complicated and the configuration becomes complicated.

Such problems are not limited to the above-mentioned prosthetic limbs, but can occur in common in other prosthetic limbs, artificial limbs such as prosthetic hands, and liners for prosthetic limbs.
The present invention has been made in view of these circumstances, and an object, it is possible to mount the definition limb stump limb through easy mounting work, the normal mounted state with a simple configuration and to provide a defined limb that can be maintained.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
In the following description, the “socket” includes not only a member different from the “liner” but also an integrated member by attaching a liner to the inner surface of the socket. In this case, the inner side surface of the liner attached to the inner side surface of the socket corresponds to the “inner side surface of the socket”.

(1) The invention according to claim 1 is a prosthetic limb comprising a liner attached to a stump portion of a limb and a socket having an insertion portion into which the stump portion to which the liner is attached can be inserted. The inner surface of the liner is provided with a fibrous member that is inclined in a direction in which a stump is inserted into the liner, and the inner surface of the socket has a stump connected to the insertion portion of the socket. The gist is that the fibrous member inclined in the direction of inserting the part is provided by pasting .

According to this configuration, when inserting the stump portion into the liner, the fibrous member provided on the inner side surface of the liner becomes the normal hair, and therefore the resistance force generated during the insertion is small. For this reason, the installation of the liner does not become difficult due to the provision of the fibrous member on the inner side surface of the liner. On the other hand, when the liner is about to fall off from the stump, the fibrous member provided on the inner side surface of the liner becomes reverse hairs, resulting in a large resistance. For this reason, it can suppress that a liner falls out from a stump part. Therefore, the liner can be mounted on the stumps of the limbs through an easy mounting operation, and the normal mounting state of the liner can be maintained with a simple configuration. Moreover, when inserting a stump part with respect to the insertion part of a socket, since a fibrous member becomes what is called a regular hair, the resistance force which arises at the time of the insertion is small. For this reason, it is not difficult to mount the socket due to the provision of the fibrous member on the inner surface of the socket. On the other hand, when the socket is about to fall off from the cut end portion, the fibrous member becomes so-called reverse hair, so that a large resistance is generated. For this reason, it can suppress that a socket falls out from a cut end part. Accordingly, the prosthetic limb can be attached to the stump portion of the limb through an easy attachment operation, and a normal attachment state of the prosthetic limb can be maintained with a simple configuration.

Incidentally, as an arrangement mode of the fibrous member, in addition to the mode in which the fibrous member is attached to the inner side surface of the liner, a mode in which the fibrous member is formed by the liner itself can be employed. In addition to the mode in which the fibrous member is attached to the inner side surface of the socket, a mode in which the fibrous member is formed by the socket itself can be employed.

  In general prosthetic limbs, after attaching a liner to the stump, the stump with the liner attached is often inserted into the insertion part of the socket. In some cases, a configuration integrated by pasting may be employed. In such a configuration, when inserting the stump portion into the insertion portion of the socket, since the fibrous member provided on the inner side surface of the liner, that is, the “inner side surface of the socket” becomes forward hair, The resistance generated during insertion is small. For this reason, it is not difficult to mount the socket due to the provision of the fibrous member on the inner surface of the socket. On the other hand, when the socket is about to fall off from the cut end portion, the fibrous member provided on the “inner side surface of the socket” becomes reverse hair, so that a large resistance is generated. For this reason, it can suppress that a socket falls out from a cut end part. Accordingly, the prosthetic limb can be attached to the stump portion of the limb through an easy attachment operation, and a normal attachment state of the prosthetic limb can be maintained with a simple configuration.

(2) The invention according to claim 2, in prostheses according to claim 1, on the outer surface of the liner is inclined in a direction opposite to the direction for inserting the liner into inserting portion of the socket The gist is that a fibrous member is provided.

  According to this configuration, when inserting the stump portion where the liner is attached to the insertion portion of the socket, the fibrous member provided on the outer surface of the liner becomes the front hair, and the insertion of the socket Since the fibrous member provided on the inner surface of the part also becomes regular hair, the resistance force generated upon insertion is small. Therefore, it is not difficult to mount the socket due to the provision of the fibrous member on the outer surface of the liner. On the other hand, when the socket is about to fall off from the end where the liner is mounted, the fibrous member provided on the outer surface of the liner becomes reverse hair, and is provided on the inner surface of the insertion portion of the socket. A fibrous member also becomes reverse hair. And since the inclination directions of these fibrous members are opposite directions, they are entangled with each other, thereby generating a greater resistance. For this reason, it is possible to further suppress the socket from falling off from the cut end where the liner is mounted.

  Incidentally, as an arrangement mode of the fibrous member, in addition to the mode in which the fibrous member is attached to the outer surface of the liner, a mode in which the fibrous member is formed by the liner itself can be employed.

( 3 ) The invention according to claim 3 is the prosthetic limb according to claim 2, wherein the inner surface of the socket is further provided with a fibrous member inclined in a predetermined direction in the circumferential direction of the socket , The gist of the invention is that the outer surface of the liner is further provided with a fibrous member inclined in a direction opposite to the predetermined direction in the circumferential direction of the liner .

According to this configuration, in the state where the stump portion of the limb is inserted into the insertion portion of the socket, the socket is provided on the inner surface of the socket when attempting to rotate in the inclination direction of the fibrous member. Since the fibrous member becomes reverse hair, a large resistance is generated. For this reason, it can suppress this about a socket rotating in the inclination direction of a fibrous member. Accordingly, the prosthetic limb can be attached to the stump portion of the limb through an easy attachment operation, and a normal attachment state of the prosthetic limb can be maintained with a simple configuration. In addition, the socket rotates in a direction opposite to the inclination direction of the fibrous member provided on the outer surface of the liner in a state in which the stumps of the limbs to which the liner is attached are inserted into the insertion part of the socket. When trying to do so, the fibrous member becomes reverse hair, so a large resistance is generated. For this reason, it can suppress this about a socket rotating in the direction opposite to the inclination direction of the fibrous member provided in the outer surface of a liner.

Incidentally, as an arrangement mode of the fibrous member, in addition to the mode in which the fibrous member is attached to the inner side surface of the socket, a mode in which the fibrous member is formed by the socket itself can be employed. In addition to the mode in which the fibrous member is attached to the outer surface of the liner, a mode in which the fibrous member is formed by the liner itself can be employed.

( 4 ) The invention according to claim 4 is the prosthetic limb according to claim 3 , in which the stump portion of the limb on which the liner is attached is inserted into the insertion portion of the socket. a fibrous member which inclines in a predetermined direction which is provided on the inner surface, and the predetermined direction which is provided on the outer surface of the liner to the fibrous member to tilt in the opposite direction, configured to contact one another It is the gist of what has been done.

  According to this configuration, in the state where the stumps of the limbs to which the liner is attached are inserted into the insertion portions of the socket, the socket is inclined with respect to the fibrous member provided on the inner surface of the socket, that is, the liner. When trying to rotate in the direction opposite to the direction of inclination of the fibrous member provided on the outer surface of the liner in the circumferential direction, the fibrous member provided on the inner surface of the socket becomes reverse hair, and the liner The fibrous member provided on the outer side surface of this becomes reverse hair. And since the inclination direction of these fibrous members is a reverse direction, they are entangled and a bigger resistance force arises. For this reason, it can suppress further that a socket rotates in the inclination direction of the fibrous member provided in the inner surface of the socket.

(5) The gist of the invention described in claim 5 is that, in the prosthetic limb according to claim 1 or claim 2, an elastic spacer is provided on the bottom surface of the inner side surface of the liner.

As a result, since the tip of the stump and the spacer are kept in close contact with each other, the movement of the user causes the bottom surface of the liner and the tip of the stump to be separated and uncomfortable due to this. Sound generation can be suppressed.

The schematic block diagram which shows the schematic structure about the artificial leg which concerns on 1st Embodiment of this invention. The fragmentary sectional view which shows typically the partial cross-section of the artificial leg in the state with which the prosthetic leg in the embodiment was mounted | worn by the stump part S of the leg | foot. The partial cross section figure which shows typically the partial cross section structure centering on the liner about the liner for artificial legs which concerns on 2nd Embodiment of this invention. The partial cross section figure which shows typically the partial cross section structure centering on a synonymous leg about the artificial leg which concerns on 3rd Embodiment of this invention. The partial cross section figure which shows typically the partial cross section structure centering on a synonym leg about the artificial leg which concerns on 4th Embodiment of this invention. The schematic block diagram which shows schematic structure of the artificial leg concerning 5th Embodiment of this invention. It is a cross-sectional view of the artificial leg in the same embodiment, and is a cross-sectional view showing a cross-sectional structure on the opening side of the liner. It is a cross-sectional view of the artificial leg in the same embodiment, and is a cross-sectional view showing a cross-sectional structure on the tip end side of the liner. About the artificial leg which concerns on 6th Embodiment of this invention, (a) Front view centering on artificial leg, (b) Sectional drawing which shows the cross-section of a socket. Sectional drawing which shows the EE cross-section in FIG. Sectional drawing which shows the cross-sectional structure centering on the liner about the modification of the liner for artificial legs which concerns on this invention. The fragmentary sectional view which shows the fragmentary sectional structure centering on a synonymous leg about the modification of the artificial leg which concerns on this invention. The fragmentary sectional view which shows the partial cross-section structure centering on a synonymous leg about the other modification of the artificial leg concerning this invention. The fragmentary sectional view of the fragmentary sectional structure centering on a synonymous leg about the other modification of the artificial leg concerning this invention. The fragmentary sectional view which shows the fragmentary sectional structure centering on the liner about the modification of the liner for artificial legs which concerns on this invention. (A) (b) The schematic for demonstrating the definition about the predetermined | prescribed inclination direction which concerns on this invention, and its reverse direction. The perspective view which shows the perspective structure of the conventional artificial limb.

<First Embodiment>
Hereinafter, with reference to FIG.1 and FIG.2, 1st Embodiment which actualized the artificial limb which concerns on this invention as the artificial leg 1 with which the leg cut | disconnected in the leg part is mounted | worn is described.

  In FIG. 1, schematic structure of the artificial leg 1 of this embodiment is shown. In the figure, the liner 2 and the socket 3 constituting the artificial leg 1 are shown in a state of being coaxially separated. Further, in the same figure, the configuration of the lower part of the socket 3 is not shown, but the same part has a structure similar to or equivalent to the socket 2003 in the conventional artificial leg 2001 shown in FIG. And

As shown in FIG. 1, a prosthetic leg 1 includes a liner 2 that can be attached to a stump portion S of a foot, and a socket 3 having an insertion portion 4 into which the stump portion S to which the liner 2 is attached is inserted. It has.
The liner 2 forms a bag shape and has a shape that matches the shape of the stump S of the user. Here, the liner 2 is formed by sewing a rubber cloth. Incidentally, in this embodiment, as the rubber fabric of the liner 2, one having a thickness of 2 mm to 5 mm is adopted.

  The socket 3 has a bottomed cylindrical shape, and the insertion portion 4 has a shape that matches the shape of the cut end S to which the liner 2 is mounted. Here, the socket 3 is formed of fiber reinforced resin.

  By the way, as described above, in order to prevent the prosthetic leg from coming off the stump S, the conventional prosthetic leg is provided with a mounting tool for fastening the socket to the stump S where the liner is mounted. ing.

  However, in such a conventional artificial leg, in order to suppress the omission of the artificial leg as described above, a wearing tool is required in addition to the liner and the socket, and the user attaches the belt of the wearing tool to the stump portion. A complicated operation such as winding around S is forced each time. Therefore, in the conventional artificial leg, there is a problem that the mounting work becomes complicated and the configuration becomes complicated.

  On the other hand, in order to prevent the prosthetic leg from falling off from the cut end portion S, a first connection fitting is provided at the tip of the liner, and a second connection fitting is provided at the bottom end of the socket insertion portion. Prosthetic limbs have also been developed that fix the socket to the stump S that is provided and attached to the liner through the connection of these connection fittings. However, even in a prosthetic leg having such a configuration, a connection fitting is required in addition to the liner and the socket, and the user is forced to perform complicated operations such as connection and release of the connection fitting each time. Therefore, the problem that the connection work and the release work become complicated and the configuration becomes complicated is the same. Further, in this case, a space for providing each connecting bracket on the liner and the socket is required. However, since the length of the cut end portion S varies greatly depending on the user, for example, the cut end portion S is long, and Such a prosthetic leg cannot be worn by a user who cannot secure a space for the provision. Furthermore, as a result of the liner being pulled by the socket through the connection of the connection fittings, the leading end of the stump S may be pulled, resulting in problems such as discomfort to the user. Furthermore, if the tip end portion of the stump portion S continues to be pulled in this manner, a problem may occur that the flesh of the stump portion S is thinned.

  In addition, for example, by forming the entire liner with a material having high stretchability such as silicon resin and making the adhesiveness between the liner and the stump S high, it is possible to prevent the liner from falling off the stump. In this case, however, humming occurs between the stump S and the liner due to long-term use, which gives the user an unpleasant feeling. In this case, the inner space between the socket and the liner is sealed by the close contact between the socket and the liner. However, when the socket and the liner are separated by the movement of the user, the inner space is Air may leak out and unpleasant noise may be generated. Therefore, even if such a sound is generated, an unpleasant feeling is given.

  Therefore, in the present embodiment, as shown in FIG. 1, fibrous members 21, 22, and 41 described in detail below are provided on the inner and outer surfaces of the liner 2 and the inner surface of the insertion portion 4 of the socket 3. By providing, the artificial leg 1 is prevented from falling off from the stump portion S of the foot.

That is, the fibrous member 21 provided on the inner surface of the liner 2 is a raised brush that is inclined in the direction A (downward in FIG. 1) in which the stump S is inserted into the liner 2.
Further, the fibrous member 22 provided on the outer surface of the liner 2 is a raised brush that is inclined in a direction (upward in FIG. 1) opposite to the direction B in which the liner 2 is inserted into the insertion portion 4 of the socket 3.

  Further, the fibrous member 41 provided on the inner surface of the socket 3 is a raised brush that is inclined in a direction B (downward in FIG. 1) in which the stump S is inserted into the insertion portion 4 of the socket 3. Here, the fibrous member 41 provided on the inner surface of the socket 3 is provided at a position facing the fibrous member 22 provided on the outer surface of the liner 2 in a state where the artificial leg 1 is attached to the stump S. ing.

In FIG. 1, for the sake of convenience, the fibrous members 21, 22, 41, i.e., raised hairs are exaggerated.
Next, the operation of this embodiment will be described with reference to FIG.

  FIG. 2 schematically shows a partial cross-sectional structure of the prosthetic leg 1 in a state where the prosthetic leg 1 is attached to the stump S of the leg. In the figure, for the sake of convenience, the cut end S and the liner 2 and the liner 2 and the socket 3 are shown separated from each other, but in actuality, they are in contact with each other. Yes.

  As shown in FIG. 1, when the stump S is inserted into the liner 2, the raised hairs of the fibrous member 21 provided on the inner surface of the liner 2 become normal hairs. The power is small. For this reason, the installation of the liner 2 does not become difficult due to the provision of the fibrous member 21 on the inner surface of the liner 2. Further, when inserting the stump portion S to which the liner 2 is attached into the insertion portion 4 of the socket 3, the raised hairs of the fibrous member 22 provided on the outer surface of the liner 2 become normal hairs. Since the raised hairs of the fibrous member 41 provided on the inner surface of the insertion portion 4 of the socket 3 become regular hairs, the resistance force generated during the insertion is small. For this reason, it becomes difficult to mount the socket 3 due to the provision of the fibrous member 22 on the outer surface of the liner 2 and the provision of the fibrous member 41 on the inner surface of the insertion portion 4 of the socket 3. There is nothing.

  On the other hand, as shown in FIG. 2, when the liner 2 is about to fall off from the stump portion S, the raising of the fibrous member 21 provided on the inner side surface of the liner 2 becomes reverse hair, and thus a large resistance force Occurs. For this reason, the liner 2 is prevented from falling off from the stump S. Further, when the socket 3 is about to fall out from the cut end portion S to which the liner 2 is attached, that is, the cut end portion S covered by the liner 2, the fibrous member 22 provided on the outer surface of the liner 2. The raised hair becomes reverse hair, and the raised hair of the fibrous member 41 provided on the inner surface of the insertion portion 4 of the socket 3 also becomes reverse hair. And since the inclination direction of these raising | fluff has become the reverse direction, a bigger resistance force arises because they are mutually entangled. For this reason, the socket 3 is prevented from falling off from the cut end S where the liner 2 is mounted.

According to the artificial limb according to the present embodiment described above, the following operational effects can be obtained.
(1) The artificial leg 1 includes a socket 3 having an insertion portion 4 into which the stump portion S of the foot can be inserted. Further, the inner surface of the socket 3 is provided with a fibrous member 41 that is a raised brush that is inclined in a direction B in which the cut end S is inserted into the insertion portion 4 of the socket 3. Thereby, while being able to mount | wear with the artificial leg 1 to the stump part S of a foot through easy mounting | wearing operation | work, it can suppress with a simple structure that the artificial leg 1 falls off from the stump part S, and normality of the artificial leg 1 is carried out. It becomes possible to maintain a proper wearing state. In addition, since the prosthetic leg 1 can be prevented from falling off from the stump S without using the mounting tool provided on the conventional prosthetic leg, the mounting tool prevents the user from moving freely. There is no problem.

  (2) The artificial leg 1 includes a liner 2 attached to the stump S, and the stump S to which the liner 2 is attached is inserted into the insertion part 4 of the socket 3. Further, the inner surface of the liner 2 is provided with a fibrous member 21 that is a raised brush inclined in the direction A in which the stump S is inserted into the liner 2. Accordingly, the liner 2 can be attached to the stump portion S of the foot through an easy mounting operation, and the liner 2 can be prevented from falling off the stump portion S with a simple configuration. It becomes possible to maintain a proper wearing state. In addition, the liner 2 can be prevented from falling out of the stump S without increasing the adhesion between the liner and the stump S using a liner formed of a material such as silicon resin. The use of time does not cause stuffiness between the stump S and the liner 2, and does not give the user a discomfort. Further, since the socket 3 and the liner 2 are not in close contact with each other, the internal space between the socket 3 and the liner 2 is not sealed, and no unpleasant sound is generated.

  (3) On the outer surface of the liner 2, a fibrous member 22, which is raised, is inclined in a direction opposite to the direction B in which the liner 2 is inserted into the insertion portion 4 of the socket 3. As a result, the socket 3 can be mounted on the foot stump S through easy mounting work, and the socket 3 can be prevented from falling off the stump S with a simple configuration. It becomes possible to maintain a proper wearing state.

(4) The liner 2 is formed of a rubber cloth. Thereby, even if the shape of the user's stump S changes to some extent, the elastic deformation of the liner 2 between the stump S and the inner surface of the socket 3 causes the inner surface of the socket 3 to be deformed. On the other hand, the cut end S is kept in contact. Thereby, while being able to maintain suitably the fibrous member 21 provided in the inner surface of the liner 2 with respect to the stump part S which opposes this, the insertion part 4 of the socket 3 can be maintained. The fibrous member 41 provided on the inner side surface can be suitably maintained in a state in which the fibrous member 41 is in contact with the fibrous member 22 provided on the outer side surface of the liner 2 facing the fibrous member 41.
Second Embodiment
Hereinafter, referring to FIG. 3, the liner for prosthetic limbs according to the present invention is embodied as a liner for prosthetic limbs (hereinafter referred to as “liner 102”) to be attached to the stump S of the foot cut at the crus. A second embodiment will be described.

  FIG. 3 schematically shows a partial cross-sectional structure around the liner 102 of the liner 102 of the present embodiment. The figure shows a state in which the stump portion S of the foot to which the liner 102 is attached is inserted into the insertion portion 104 of the socket 103. Further, for convenience, the cut end portion S and the liner 102 are shown separately from each other, and the liner 102 and the insertion portion 104 of the socket 103 are shown apart from each other. Yes. In addition, the same configuration as the configuration exemplified in the first embodiment (for example, a configuration to which “2” is added) is duplicated by adding a code (for example, “102”) obtained by adding “100” as a corresponding code. I will omit the explanation.

Hereinafter, the difference from the first embodiment will be mainly described.
As illustrated in FIG. 3, the liner 102 has the same configuration as the liner 2 illustrated in the first embodiment.

  On the other hand, the fibrous member 41 illustrated in the first embodiment is not provided on the inner surface of the insertion portion 104 in the socket 103. That is, the inner surface of the insertion portion 104 of the socket 103 is exposed to a raw surface formed by the fiber reinforced resin that constitutes the socket 103.

Next, the operation of this embodiment will be described.
When the stump S is inserted into the liner 102, the fibrous member 121 provided on the inner side surface of the liner 102 becomes a normal hair, so that the resistance force generated during the insertion is small. For this reason, it is not difficult to attach the liner 102 due to the provision of the fibrous member 121 on the inner surface of the liner 102. In addition, when inserting the stump S to which the liner 102 is attached into the insertion portion 104 of the socket 103, the fibrous member 122 provided on the outer surface of the liner 102 becomes forward hair, The resistance generated during insertion is small. Therefore, it is not difficult to mount the socket due to the provision of the fibrous member 122 on the outer surface of the liner 102.

  On the other hand, when the liner 102 is about to fall off from the stump S, the fibrous member 121 provided on the inner surface of the liner 102 becomes reverse hair, and thus a large resistance is generated. For this reason, the liner 102 is prevented from falling off the stump S. In addition, when the socket 103 is about to fall out from the cut end S to which the liner 102 is attached, that is, the cut end S covered with the liner 102, the fibrous member 122 provided on the outer surface of the liner 102 is provided. Since it becomes reverse hair, a big resistance force arises. For this reason, the socket 103 is prevented from falling off from the cut end S where the liner 102 is mounted.

According to the liner for prosthetic limbs which concerns on this embodiment demonstrated above, in addition to the effect (4) of 1st Embodiment, the effect shown below comes to be obtained.
(5) The liner 102 is inserted into the socket 103 in a state where it is attached to the stump S of the foot, and the direction in which the stump S is inserted into the liner 102 on the inner surface of the liner 102. The fibrous member 121 which is the raising which inclines in A shall be provided. Accordingly, the liner 102 can be attached to the stump portion S of the foot through an easy mounting operation, and the liner 102 can be prevented from falling off the stump portion S with a simple configuration. It becomes possible to maintain a proper wearing state. In addition, the liner 102 can be prevented from falling out of the stump S without using a liner formed of a material such as silicon resin to increase the adhesion between the liner and the stump S. The use of time does not cause stuffiness between the stump S and the liner 102, and does not give the user a discomfort. Further, since the socket 103 and the liner 102 are not in close contact with each other, the internal space between the socket 103 and the liner 102 is not hermetically sealed and no unpleasant sound is generated.

(6) The outer surface of the liner 102 is provided with a fibrous member 122 that is a raised brush that is inclined in a direction opposite to the direction A in which the liner 102 is inserted into the insertion portion 104 of the socket 103. As a result, the socket 103 can be attached to the stump portion S of the foot through an easy mounting operation, and the socket 103 can be prevented from falling off from the stump portion S with a simple configuration. It becomes possible to maintain a proper wearing state.
<Third Embodiment>
Hereinafter, with reference to FIG. 4, a third embodiment in which a prosthetic limb according to the present invention is embodied as a prosthetic foot 201 to be attached to a stump S of a foot cut at the lower leg will be described.

  In FIG. 4, the partial cross-section structure centering on the synonymous leg 201 is typically shown about the artificial leg 201 of this embodiment. The figure shows a state in which the prosthetic leg 201 is attached to the stump S of the foot. For convenience, the cut end S and the socket 203 are shown separated from each other, but in actuality, they are in contact with each other.

  As shown in the figure, at the bottom of the socket 203, a metal socket side connecting portion 244 having a convex portion protruding downward from the bottom surface of the socket 203 is provided. The convex portion of the socket side connecting portion 244 is inserted into and engaged with a concave portion formed in the upper portion of the connecting portion 207 in the connecting portion 207 connected to the foot portion 209 and the tube portion 208. .

  In this embodiment, the fibrous member 241 described in detail below is provided on the inner side surface of the insertion portion 204 of the socket 203 to prevent the socket 203 from falling off from the stump portion S of the foot. . That is, the fibrous member 241 is a raised portion that is inclined in the direction in which the cut end portion S is inserted into the insertion portion 204 of the socket 203, and is formed on the entire inner surface of the insertion portion 204 of the socket 203.

Next, the operation of this embodiment will be described.
When the cut end portion S is inserted into the insertion portion 204 of the socket 203, the fibrous member 241 becomes normal hair, so that the resistance force generated during the insertion is small. For this reason, mounting of the socket 203 does not become difficult due to the provision of the fibrous member 241 on the inner surface of the socket 203.

  On the other hand, when the socket 203 is about to fall off from the cut end portion S, the fibrous member 241 becomes reverse hair, and thus a large resistance is generated. For this reason, the socket 203 is prevented from falling off the cut end S.

According to the artificial limb according to the present embodiment described above, the following operational effects can be obtained.
(7) The prosthetic foot 201 includes a socket 203 having an insertion portion 204 into which the stump end S of the foot can be inserted. The inner surface of the socket 203 is connected to the insertion portion 204 of the socket 203. The fibrous member 241 which is the raising which inclines in the direction which inserts the stump part S shall be provided. Accordingly, the prosthetic foot 201 can be attached to the stump portion S of the foot through an easy mounting operation, and the prosthetic foot 201 can be prevented from falling off the stump portion S with a simple configuration. It becomes possible to maintain a proper wearing state.
<Fourth embodiment>
Hereinafter, with reference to FIG. 5, 4th Embodiment which actualized the artificial leg which concerns on this invention as the artificial leg 301 with which the stump part S of the leg cut | disconnected in the leg part is mounted | worn is described.

  FIG. 5 schematically shows a partial cross-sectional structure of the prosthetic leg 301 according to the present embodiment with the synonym leg 301 as the center. The figure shows a state in which the artificial leg 301 is attached to the stump S of the foot. For convenience, the cut end S and the socket 303 are shown separated from each other, but in actuality, they are in contact with each other.

  As shown in the figure, the socket 303 has a bottomed cylindrical shape and a socket body 303A formed of fiber reinforced resin, and a liner 303B that is formed in a bag shape and is attached to the inner surface of the socket body 303A. I have. Here, the liner portion 303B is formed of the same material as the rubber cloth forming the liner 2 illustrated in the first embodiment. Thus, in this embodiment, the socket main body 303A and the liner part 303B are integrated. Hereinafter, the inner side surface of the liner portion 303B attached to the inner side surface of the socket main body 303A will be described as “the inner side surface of the socket 303”.

  In this embodiment, the fibrous member 341 described in detail below is provided on the inner side surface of the insertion portion 304 of the socket 303 to prevent the socket 303 from falling off from the stump S of the foot. .

  That is, the fibrous member 341 is a raised portion that is inclined in the direction A in which the cut end portion S is inserted into the insertion portion 304 of the socket 303, and is formed on the entire inner surface of the insertion portion 304 of the socket 303.

Next, the operation of this embodiment will be described.
When the cut end portion S is inserted into the insertion portion 304 of the socket 303, the fibrous member 341 becomes a normal hair, so that the resistance force generated during the insertion is small. For this reason, the mounting of the socket 303 is not difficult due to the provision of the fibrous member 341 on the inner side surface of the socket 303.

  On the other hand, when the socket 303 is about to fall off from the cut end portion S, the fibrous member 341 becomes reverse hair, so that a large resistance is generated. For this reason, it is suppressed that the socket 303 falls out from the stump portion S.

According to the prosthetic limb according to the present embodiment described above, an effect similar to the effect (7) of the third embodiment can be obtained.
<Fifth Embodiment>
Hereinafter, with reference to FIGS. 6-8, 5th Embodiment which actualized the artificial leg which concerns on this invention as the artificial leg 401 with which the stump S of the leg cut | disconnected in the leg part is mounted | worn is described.

  In FIG. 6, schematic structure of the artificial leg 401 of this embodiment is shown. In the figure, the side surface structure of the liner 402 constituting the artificial leg 401 and the partial cross-sectional structure of the socket 403 are shown in a coaxially spaced state. In addition, the same configuration as the configuration exemplified in the first embodiment (for example, a configuration to which “2” is added) is duplicated by adding a code (for example, “402”) obtained by adding “400” as a corresponding code. I will omit the explanation.

Hereinafter, the difference from the first embodiment will be mainly described.
In the present embodiment, the following fibrous members 423, 424, 443, and 444 are provided on the outer surface of the liner 402 and the inner surface of the insertion portion 404 of the socket 403, so that the socket 403 has a circumferential direction ( The rotation in the circumferential direction (X, Y of the liner 402) is suppressed.

  As shown in the figure, in the present embodiment, a first fibrous member 423 is provided on the outer surface of the liner 402 on the opening side of the liner 402 (upper side in the figure). Further, a second fibrous member 424 is provided on the outer surface of the liner 402 on the front end side (lower side in the drawing) of the liner 402. The fibrous members 423 and 424 are formed with a predetermined width over the entire outer surface of the liner 402.

  Further, a second fibrous member 443 is provided on the inner side surface of the insertion portion 404 of the socket 403 on the opening side of the insertion portion 404 (upper side in the figure). Further, a first fibrous member 444 is provided on the inner side surface of the insertion portion 404 of the socket 403 on the bottom side (lower side in the figure) of the insertion portion 404. These fibrous members 443 and 444 are provided with a predetermined width over the entire inner surface of the insertion portion 404 of the socket 403.

  Next, the fibrous members 423, 424, 443, and 444 provided on the outer surface of the liner 402 and the inner surface of the insertion portion 404 of the socket 403 will be described in detail with reference to FIGS.

  FIG. 7 shows a cross-sectional structure of the prosthetic leg 401 in a state in which the cut end portion S to which the liner 402 is attached is inserted into the insertion portion 404 of the socket 403, at the positions where the fibrous members 423 and 443 are disposed. A cross-sectional structure is shown. FIG. 8 shows a cross-sectional structure of the prosthetic leg 401 in a state in which the cut end portion S to which the liner 402 is attached is inserted into the insertion portion 404 of the socket 403, and the arrangement positions of the fibrous members 424 and 444. The cross-sectional structure in is shown. In these drawings, for convenience, the liner 402 and the socket 403 are shown separated from each other, but actually they are in contact with each other.

  As shown in FIG. 7, the first fibrous member 423 provided on the outer surface of the liner 402 is in a predetermined direction X in the circumferential direction of the liner 402, that is, in the direction of circling along the outer surface of the liner 402. It is the raising which inclines. On the other hand, the second fibrous member 443 provided on the inner surface of the socket 403 is a raised brush that is inclined in a direction Y opposite to the predetermined direction X in the circumferential direction of the socket 403.

  As shown in FIG. 8, the second fibrous member 424 provided on the outer surface of the liner 402 is a raised brush that is inclined in a predetermined direction X in the circumferential direction of the liner 402. On the other hand, the first fibrous member 444 provided on the inner surface of the socket 403 is a raised brush that is inclined in the predetermined direction X in the circumferential direction of the socket 403.

In FIGS. 7 and 8, the raised portions of the fibrous members 423, 424, 443, and 444 are exaggerated for convenience.
Next, with reference to FIG.7 and FIG.8, the effect | action of this embodiment is demonstrated.

  As shown in FIG. 7, in a state where the stump portion S of the foot to which the liner 402 is attached is inserted into the insertion portion 404 of the socket 403, the socket 403 is in a predetermined direction X in the circumferential direction of the socket 403. When trying to rotate in the opposite direction Y, the second fibrous member 443 provided on the inner surface of the socket 403 becomes reverse hair, and the first fibrous member provided on the outer surface of the liner 402. The member 423 becomes reverse hair. And since the inclination direction of these fibrous members 443 and 423 is a reverse direction, they are entangled and a big resistance force arises. For this reason, the socket 403 is restrained from rotating in the direction Y opposite to the predetermined direction X in the circumferential direction of the socket 403.

  As shown in FIG. 8, when the socket 403 is about to rotate in the predetermined direction X in a state where the stump S of the foot to which the liner 402 is attached is inserted into the insertion portion 404 of the socket 403. The first fibrous member 444 provided on the inner surface of the socket 403 becomes reverse hairs, and the second fibrous member 424 provided on the outer surface of the liner 402 becomes reverse hairs. And since the inclination direction of these fibrous members is a reverse direction, they are entangled and a big resistance force arises. For this reason, the socket 403 is restrained from rotating in the predetermined direction X in the circumferential direction of the socket 403.

  In this way, whether the socket 403 rotates in the predetermined direction X in the circumferential direction of the socket 403 or the case where it rotates in the direction Y opposite to the predetermined direction X, the inner surface of the socket 403 And the corresponding fibrous members 443, 423 (444, 424) among the fibrous members 443, 444, 423, 424 provided on the outer surface of the liner 402 become entangled, so that the rotation in the predetermined direction X is performed. And the rotation in the opposite direction Y is suppressed. That is, the socket 403 is restrained from rotating in the circumferential direction.

According to the artificial limb according to the present embodiment described above, the following operational effects can be obtained.
(8) The artificial leg 401 includes a socket 403 having an insertion portion 404 into which the stump end S of the foot is inserted, and is provided on the inner surface of the socket 403 in the circumferential direction of the socket 403. The first fibrous member 444 that is inclined in the direction Y and the second fibrous member 443 that is inclined in the direction Y opposite to the predetermined direction X are provided. Thereby, while being able to mount | wear with the artificial leg 401 to the stump part S of a foot through easy mounting | wearing operation | work, it can suppress with a simple structure that the artificial leg 401 rotates with respect to the stump part S. The normal wearing state of 401 can be maintained.

  (9) The artificial leg 401 includes a liner 402 attached to the cut end S, and the cut end S to which the liner 402 is attached is inserted into the insertion portion 404 of the socket 403. Further, the outer surface of the liner 402 has a first fibrous member 423 that is inclined in a predetermined direction X in the circumferential direction of the liner 402, and napping that is inclined in a direction Y opposite to the predetermined direction X. The second fibrous member 424 is provided. As a result, the prosthetic foot 401 can be attached to the stump portion S of the foot through an easy mounting operation, and the rotation of the prosthetic foot 401 with respect to the stump portion can be accurately suppressed with a simple configuration. The normal wearing state of the prosthetic leg 401 can be suitably maintained.

(10) The second fibrous member 443 provided on the inner surface of the socket 403 in a state where the stump portion S of the foot to which the liner 402 is attached is inserted into the insertion portion 404 of the socket 403, and the liner 402 The first fibrous members 423 provided on the outer side surfaces of the first and second fibrous members 423 are configured to contact each other, and the inclined directions of the fibrous members 443 and 423 that are in contact with each other are configured to be opposite to each other. Further, the first fibrous member 444 provided on the inner surface of the socket 403 and the second fibrous member 424 provided on the outer surface of the liner 402 are configured to contact each other, and the fibrous members 444 that are in contact with each other. 424 is configured such that the inclination direction of 424 is opposite. Accordingly, the artificial leg 401 can be attached to the stump portion S of the foot through an easy mounting operation, and the rotation of the prosthetic foot 401 with respect to the stump portion S can be more accurately suppressed with a simple configuration. It is possible to maintain the normal wearing state of the artificial leg 401 more accurately.
<Sixth Embodiment>
Hereinafter, with reference to FIG.9 and FIG.10, 6th Embodiment which actualized the artificial leg which concerns on this invention as the artificial leg 501 with which the stump part S of the leg cut | disconnected in the leg part is mounted | worn is described.

  9A and 9B show a schematic configuration of the artificial leg 501 of the present embodiment. 2A shows a front structure centering on the prosthetic leg 501, and FIG. 2B shows a cross-sectional structure of the socket 503. FIG. In the same figure, the knee is indicated by “K”. FIG. 10 shows an EE cross-sectional structure of FIG.

  In FIGS. 9 and 10, the same configuration as the configuration exemplified in the first embodiment (for example, the configuration with the symbol “2”) is added by adding “500” as the corresponding code (for example, “ 502 ”) will be omitted to avoid redundant explanation.

Hereinafter, the difference from the first embodiment will be mainly described.
As shown in FIG. 9, the socket 503 can be fitted with the stump portion S of the lower leg, and the entrance portion 505 in the insertion portion 504 is located below the knee of the user.

  By the way, in the socket into which the stump portion of the thigh is inserted (not shown), since the socket supporting surface of the socket is usually shaped to support the weight of the user, the insertion portion of the socket The fall of the stump portion to the back of the head is regulated to some extent. On the other hand, as shown in FIG. 9 (a), the socket 503 into which the cut end S of the lower leg is inserted has a small number of parts that support the body weight like the socket for the thigh. The problem that the stump S falls into the back of the insertion portion 504 of 503 is likely to occur. In particular, when the socket 503 is the one where the cut end S of the lower leg is inserted, the user's foot is thinned, etc., so that it is between the knee and the inner surface of the socket 503 facing the knee. When the gap becomes large, the weight of the user cannot be suitably supported through the socket 503, and the stump S is likely to fall into the back of the insertion portion 504 of the socket 503.

  Therefore, in the present embodiment, as shown in FIGS. 9B and 10, the socket 503 is provided on the inner surface of the socket 503, more specifically, on the inner surface including the portion located below the knee. A fibrous member 545 that is inclined in a direction opposite to the direction A in which the cut end S is inserted into the insertion portion 504 is provided. Here, the part where the fibrous member 545 is provided includes a weight support part. In addition, the same fibrous member 541 as the fibrous member 41 illustrated in the first embodiment is provided in a portion other than the portion where the fibrous member 545 is provided on the inner surface of the socket 503.

  Further, as shown in FIG. 10, the outer surface of the liner 502 is opposed to the fibrous member 545 provided on the inner surface of the socket 503 in the direction A in which the liner 502 is inserted into the insertion portion 504 of the socket 503. An inclined fibrous member 525 is provided. It should be noted that the same fibrous member 522 as the fibrous member 22 exemplified in the first embodiment is provided at a portion other than the portion where the fibrous member 525 is provided on the outer surface of the liner 502. Further, the same fibrous member 521 as the fibrous member 21 exemplified in the first embodiment is provided on the inner surface of the liner 502.

Hereinafter, the operation of the present embodiment will be described.
As shown in FIG. 10, in the state where the cut end portion S to which the liner 502 is attached is completely inserted into the insertion portion 504 of the socket 503, the cut end portion S is located behind the insertion portion 504 of the socket 503. Is likely to be the reverse hair of the fibrous member 545 provided on the weight supporting portion on the inner side surface of the socket 503, and the fibrous member 525 provided on the outer surface of the liner 502 is the reverse hair. Become. And since the inclination direction of these fibrous members 545 and 525 is a reverse direction, they are mutually entangled and a big resistance force arises. For this reason, the stump S is prevented from falling into the back of the insertion portion 504 of the socket 503.

  Here, the insertion portion 504 of the socket 503 has a larger diameter at the inlet portion 505 than the other portions. Therefore, when the socket 503 is mounted, the insertion portion 504 is formed on the inner surface of the socket 503 on the outer surface of the liner 502. The fibrous member 525 provided at the facing position is unlikely to become reverse hair, and the fibrous member 545 provided on the inner surface of the socket 503 is unlikely to become reverse hair. Therefore, it is not difficult to attach the socket 503. That is, when the cut end portion S is further inserted into the insertion portion 504 of the socket 503 and the cut end portion S further falls, the fibrous members 525 and 545 become reverse hairs. The depression suppression function as described above will act.

According to the prosthetic limb according to the present embodiment described above, the following effects can be obtained in addition to the effects (1) to (4) of the first embodiment.
(11) On the inner surface of the socket 503, a fibrous member 545 that is inclined in a direction opposite to the direction A in which the cut end S is inserted into the insertion portion 504 of the socket 503 is provided. Accordingly, the prosthetic leg 501 can be attached to the stump S of the foot through an easy mounting operation, and the stump S can be prevented from dropping into the back of the insertion portion 504 of the socket 503 with a simple configuration. Thus, the normal wearing state of the artificial leg 501 can be maintained.

  (12) The socket 503 is to which the stump portion S of the lower leg is inserted, and the socket 503 is such that the entrance portion 505 in the insertion portion 504 is located below the knee, and the fibrous member 545 is The inner surface of the part located under the knee, that is, the weight supporting part was provided. Thereby, it becomes possible to accurately suppress the stump S from falling into the back of the insertion portion 504 of the socket 503.

  (13) The artificial leg 501 includes the liner 502 attached to the stump S. Further, the socket 503 is to be fitted with the cut end S where the liner 502 is attached to the insertion portion 504, and faces the fibrous member 545 provided on the inner surface of the socket 503 on the outer side surface of the liner 502. In this position, a fibrous member 525 that is inclined in the direction A in which the liner 502 is inserted into the insertion portion 504 of the socket 503 is provided. Thereby, it becomes possible to further suppress the stump S from falling into the back of the insertion portion 504 of the socket 503.

  In addition, the prosthetic limb and the prosthetic limb liner according to the present invention are not limited to the configuration exemplified in the above-described embodiment, and can be implemented as, for example, the following forms appropriately modified.

In the first embodiment, the bottomed cylindrical socket 3 is illustrated, but instead, a bottomless cylindrical socket may be used.
In each of the above embodiments, the liner is made of rubber fabric having a thickness of 2 mm to 5 mm. However, the thickness of the liner is not limited to this, and for example, an environment where the liner is used. In particular, it can be changed to a rubber fabric having a thickness of 5 mm or more or a rubber fabric having a thickness of less than 2 mm, depending on the temperature, humidity and the like.

  In each of the above embodiments, the liner is formed from the rubber cloth, but the material of the liner is not limited to this, and can be formed from other materials such as a woven fabric and a non-woven fabric.

  In each of the above embodiments, the fibrous member is exemplified only for straight hair, but the shape of the fibrous member is not limited to this, and for example, it may be curved or spiral. There may be. As such a fibrous member, what is necessary is just to incline in the predetermined direction illustrated in each said embodiment as a whole from the hair root to the hair tip.

  In the first embodiment, since the liner 2 is formed by sewing rubber fabric, the fibrous member 21 is provided on the inner side surface of the liner 2, and the fibrous member is also provided on the bottom surface of the liner 2. 21 is provided. However, the fibrous member according to the present invention is not necessarily provided on the bottom surface of the liner. Instead, as shown in FIG. 11, the fibrous member 621 is provided only on the inner surface of the liner 602, and the liner 602 is provided. A spacer 605 formed of a material having a high elasticity or elasticity such as a silicon resin may be provided on the bottom surface. As a result, since the tip of the stump S and the spacer 605 are maintained in close contact with each other, the bottom surface of the liner 602 and the front end surface of the stump S are separated from each other by the movement of the user. The generation of unpleasant sound caused by this can be suppressed.

  In the first embodiment, the fibrous members 21, 22, and 41 are provided on a part of the inner surface of the liner 2, a part of the outer surface, or a part of the inner surface of the socket 3, These may be provided on the entire inner surface of the liner 2, the entire outer surface of the liner 2, and the entire inner surface of the socket 3.

  As described in the first embodiment, providing the fibrous member 22 on the outer surface of the liner 2 entangles the fibrous member 22 and the fibrous member 41 provided on the inner surface of the socket 3 with each other. Thus, it is desirable for accurately suppressing the socket 3 from falling off from the cut end S where the liner 2 is mounted. However, the prosthetic limb and the prosthetic limb liner according to the present invention are not limited to this. For example, as in the case where the prosthetic leg is relatively light, it is possible to prevent the socket from falling off from the stump S to which the liner is attached. If the required resistance is not so great, a fibrous member 721 is provided only on the inner surface of the liner 702 as in the artificial leg 701 and liner 702 shown in FIG. 12, and the outer surface of the liner 702 is a fiber. The shape member may not be provided. Even in this case, the fibrous member 741 provided on the inner surface of the socket 703 can prevent the socket 703 from coming off from the cut end S where the liner 702 is attached to some extent. It becomes like this.

  As described in the first embodiment, it is desirable to provide the fibrous member 21 on the inner side surface of the liner 2 in order to prevent the liner 2 from falling off the foot stump S. However, the prosthetic limb and the prosthetic limb liner according to the present invention are not limited to this. For example, the liner is formed of a resin, and the liner falls out of the stump S by the restoring force of the liner itself. In the case where it can be suppressed, as in the artificial leg 801 and the liner 802 shown in FIG. 13, the fibrous fastening member 822 is provided on the outer surface of the liner 802, and the fibrous member is not provided on the inner side surface of the liner 802. It can also be done.

  The prosthetic limb according to the present invention is not limited to the one in which the fibrous member is provided on at least one of the inner side surface and the outer side surface of the liner, but, for example, like the artificial leg 901 shown in FIG. It is also possible to provide the fibrous member 941 only on the inner side surface of 904 and not provide the fibrous member on both the inner side surface and the outer side surface of the liner 902. Even in this case, for example, if the liner is formed of resin and the liner can be prevented from coming off from the stump S by the restoring force of the liner itself, the insertion of the socket 903 is possible. The fibrous member 941 provided on the inner side surface of the portion 904 can prevent the socket 903 from coming off from the cut end S where the liner 902 is mounted to some extent.

  As described in the second embodiment, it is desirable to provide the fibrous member 121 on the inner side surface of the liner 102 in order to prevent the liner 102 from falling off the foot stump S. However, the liner for prosthetic limbs according to the present invention is not limited to this. For example, the liner is formed of a resin, and it is possible to suppress the liner from falling off the stump S due to the restoring force of the liner itself. In the case where it is possible, it is also possible not to provide the fibrous member on the inner surface as in the liner 1002 shown in FIG. That is, the fibrous fastening member 1022 may be provided only on the outer surface of the liner 1002. Even in this case, the fibrous member 1022 provided on the outer surface of the liner 1002 can prevent the socket 1003 from falling off from the stump S to some extent.

  In the fifth embodiment, the fibrous members 423, 424, 443, and 444 are provided over the entire circumference in the circumferential direction of the socket 403 (the circumferential direction of the liner 402). You may make it provide partially in a direction.

  As in the fifth embodiment, the fibrous member 443 provided on the inner surface of the socket 403 in a state where the stump S of the foot to which the liner 402 is attached is inserted into the insertion portion 404 of the socket 403. 444 and the fibrous members 423 and 424 provided on the outer surface of the liner 402 are configured to contact each other, and the inclined directions of the fibrous members 443 and 423 (444 and 424) in contact with each other are opposite to each other. Such a configuration is desirable for accurately suppressing the socket 403 from rotating in the circumferential direction of the socket 403. However, the prosthesis according to the present invention is not limited to this, and in the fifth embodiment, one of the first fibrous member 444 and the second fibrous member 443 provided on the inner surface of the socket 403 is omitted. Or one of the first fibrous member 444 and the second fibrous member 443 does not contact the second fibrous member 424 and the first fibrous member 423 provided on the outer surface of the liner 402. It can also be provided at a position. In the fifth embodiment, either one of the first fibrous member 423 and the second fibrous member 424 provided on the outer surface of the liner 402 can be omitted. Furthermore, the fibrous members 444 and 443 provided on the inner side surface of the insertion portion 404 of the socket 403 and the fibrous members 423 and 424 provided on the outer side surface of the liner 402 may be configured not to contact each other.

  In the fifth embodiment, the fibrous members 443, 444, 423, and 424 are provided on both the inner surface of the socket 403 and the outer surface of the liner 402. However, the artificial limb according to the present invention is not limited to this. However, the fibrous member may not be provided on the outer surface of the liner. That is, even if the fibrous member is provided only on the inner side surface of the socket, the rotation of the artificial leg with respect to the stump S can be suppressed to some extent. On the other hand, the fibrous member may not be provided on the inner surface of the socket. That is, even if the fibrous member is provided only on the outer surface of the liner, the prosthetic limb can be restrained from rotating with respect to the stump S to some extent.

  In the fifth embodiment, the first fibrous member 444 that inclines in the predetermined direction X in the circumferential direction of the socket 403 on the inner surface of the socket 403, and inclines in the direction Y opposite to the predetermined direction X The second fibrous member 443 is provided. However, instead of this, only one of the first fibrous member 444 and the second fibrous member 443 may be provided on the inner surface of the socket.

  In the fifth embodiment, the first fibrous member 423 is inclined on the outer surface of the liner 402 in the predetermined direction X in the circumferential direction of the liner 402, and is inclined in the direction Y opposite to the predetermined direction X. The second fibrous member 424 is provided. However, instead of this, only one of the first fibrous member 423 and the second fibrous member 424 may be provided on the outer surface of the liner.

  -In the said 6th Embodiment, as shown in FIG.9 (b), as for the socket 503, the entrance part 505 in the insertion part 504 is located under a knee, and it exists in the inner surface of the site | part located under the knee. Only the fibrous member 545 is provided, but instead of this, such a fibrous member may be provided on the entire inner peripheral surface of the inlet portion of the insertion portion of the socket.

  As described in the sixth embodiment, it is possible to provide the liner 502 with the fibrous member 525 having the raised portions inclined in the direction A in which the liner 502 is inserted into the insertion portion 504 of the socket 503 on the outer surface of the liner 502. The raised portion of the fibrous member 525 provided on the outer surface of the socket entangles with the fibrous member 545 provided on the inner surface of the socket 503 so that the stump S falls into the back of the insertion portion 504 of the socket 503. It is desirable to suppress this. However, the present invention is not limited to this, and instead of this, the fibrous member 525 provided on the outer surface of the liner 502 may be omitted. Even in this case, in the state where the cut end portion S to which the liner 502 is attached is completely inserted into the insertion portion 504 of the socket 503, the cut end portion S is formed at the back of the insertion portion 504 of the socket 503. If the fiber member 545 provided on the inner side surface of the socket 503 becomes a reverse hair when it is about to fall, a large resistance is generated, so that a stump is formed at the back of the insertion portion 504 of the socket 503. The part S is suppressed to some extent.

  In the sixth embodiment, the fibrous member 545 provided on the inner surface of the socket 503 may be omitted. Even in this case, since the fibrous member 525 provided on the outer surface of the liner 502 becomes reverse hair, a large resistance is generated, so that the stump S at the back of the insertion portion 504 of the socket 503 is generated. Will be suppressed to some extent.

  As described in the sixth embodiment, in addition to the fibrous member 545, the fibrous member 541 is provided on the inner surface of the socket, so that the stump S at the back of the insertion portion 504 of the socket 503 is provided. This is desirable for preventing the socket 503 from falling off the stump S. However, the present invention is not limited to this, and the fibrous member 541 may be omitted if the dropout of the socket from the cut end where the liner is attached is not a problem.

  As described in the sixth embodiment, it is possible to provide the fibrous member 522 in addition to the fibrous member 525 on the outer surface of the liner, so that the stump S at the back of the insertion portion 504 of the socket 503 is provided. This is desirable for preventing the socket 503 from falling off the stump S. However, the present invention is not limited to this, and the fibrous member 522 may be omitted if the dropout of the socket from the cut end where the liner is attached is not a problem.

  In the sixth embodiment, the fibrous member 545 is provided at the inlet portion 505 on the inner surface of the socket 503. Further, the fibrous member 525 is provided on the outer surface of the liner 502 so as to face the fibrous member 545. However, the present invention is not limited to this, and a fibrous member can be provided on the inner surface of the socket at the inner portion thereof. In this case, the fibrous member may be provided so as to face the fibrous member on the outer surface of the liner.

  -In the said 6th Embodiment, although illustrated about the artificial leg 501 provided with the socket 503 by which the stump part of a lower leg is inserted, this invention is not limited to this, and the stump part of a thigh is inserted by this. The present invention can also be applied to a prosthetic leg having a socket.

  -In the said 1st Embodiment and 6th Embodiment, the fibrous member 41 which inclines in the direction B which inserts the cut end part S in the insertion part 4,504 of the socket 3,503 in the inner surface of the socket 3,503. In addition to this, the fibrous members 444 and 443 illustrated in the fifth embodiment may be provided. That is, a fibrous member inclined on the inner side surface of the socket in a direction in which the cut end portion S is inserted into the insertion portion of the socket, and a fibrous member having raised hairs inclined in a predetermined direction in the circumferential direction of the socket Both may be provided.

  In the first embodiment and the sixth embodiment, the outer surfaces of the liners 2 and 502 are inclined in the direction opposite to the direction B in which the liners 2 and 502 are inserted into the insertion portions 4 and 504 of the sockets 3 and 503. However, in addition to this, the fibrous members 423 and 424 exemplified in the fifth embodiment may be provided. That is, a fibrous member having a fibrous member inclined on the outer surface of the liner in a direction opposite to the direction in which the liner is inserted into the insertion portion of the socket, and a raised portion inclined in a predetermined direction in the circumferential direction of the liner Both may be provided.

  In each of the above embodiments and modifications thereof, a fibrous member (hereinafter referred to as a fibrous member K) that is provided on the inner surface of the socket and is inclined in a direction in which a stump is inserted into the insertion portion of the socket, and a liner A fibrous member (hereinafter referred to as a fibrous member L) that is provided on the outer surface of the socket and is inclined in a direction opposite to the direction in which the liner is inserted into the insertion portion of the socket is illustrated. In particular, the case where the angle between the inclination direction of the fibrous member K and the inclination direction of the fibrous member L is 180 ° is illustrated. However, each fibrous member in the present invention can be embodied with the following modes in addition to those having such a mode. Here, FIG. 16A schematically shows the relationship between the inclination direction of the fibrous member K and the inclination direction of the fibrous member L. FIG. As shown in the figure, the angle α formed by the inclination direction of the fibrous member K and the inclination direction of the fibrous member L only needs to be a predetermined angle (90 ° <α <180 °). However, when the socket is about to fall off from the cut end portion, the predetermined angle α is set to be large in order to sufficiently exhibit the function of causing these fibrous members to be reversed hairs and generating a large resistance force. It is preferable.

  -In the said 5th Embodiment and its modification, the 1st fibrous member (henceforth 1st fibrous member M) which is provided in the inner surface of a socket and inclines in the predetermined direction in the circumferential direction of a socket, and the said It illustrated about the 2nd fibrous member (henceforth 2nd fibrous member N) inclined in the direction opposite to a predetermined direction. In particular, the case where the angle formed by the inclination direction of the first fibrous member M and the inclination direction of the second fibrous member N is 180 ° is illustrated. However, each fibrous member in the present invention can be embodied with the following modes in addition to those having such a mode. Here, FIG. 16B schematically shows the relationship between the inclination direction of the fibrous member M and the inclination direction of the fibrous member N. As shown in the figure, the angle β formed by the inclination direction of the fibrous member M and the inclination direction of the fibrous member N only needs to be a predetermined angle (90 ° <β <180 °). However, in this case as well, when the socket is about to rotate, the predetermined angle β is set large in order to sufficiently exert the function of causing the fibrous member to be reversed hairs and generating a large resistance force. It is preferable to do.

  In each of the above-described embodiments, the artificial leg and the artificial leg liner to be worn on the leg cut at the lower leg part are exemplified, but the artificial leg and artificial leg liner according to the present invention are not limited to these, and the thigh part It is possible to apply to those for legs that have been cut in step 1, or for prostheses.

  1, 201, 301, 401, 501, 701, 801, 901, 2001 ... Prosthetic leg 2,102,202,402,502,602,702,802,902,1002,2002 ... Liner, 21,121,521 621, 721 ... fibrous member, 22, 122, 522, 622, 822, 1022 ... fibrous member, 3, 103, 203, 303, 403, 503, 703, 803, 903, 1003, 2003 ... socket, 4, 104, 204, 304, 404, 504, 704, 804, 904, 1004, 2004 ... insertion part, 41, 241, 341, 541, 741, 841, 941 ... fibrous member, 207 ... connection part, 208 ... pipe Part, 209 ... foot part, 244 ... socket side connecting part, 303A ... socket body, 303B ... liner part, 423 424, 443, 444 ... fibrous member, 525 ... fibrous member, 505 ... inlet portion, 545 ... fibrous member, 605 ... spacer, 2010 ... mounting tool, 2011 ... fixed piece, 2012 ... belt, K ... knee, S ... stumps.

Claims (5)

A prosthesis comprising a liner attached to a stump portion of a limb, and a socket having an insertion portion into which the stump portion to which the liner is attached can be inserted,
The inner surface of the liner is provided with a fibrous member that is inclined in a direction in which a stump is inserted into the liner,
Wherein the inner surface of the socket, prostheses, characterized in that the fibrous member be inclined in a direction of inserting the cut end portion to the inserting portion of the socket is provided by pasting. The prosthetic limb according to claim 1,
The prosthetic limb , wherein a fibrous member is provided on an outer surface of the liner, and is inclined in a direction opposite to a direction in which the liner is inserted into an insertion portion of the socket . The prosthetic limb according to claim 2,
The inner surface of the socket is further provided with a fibrous member inclined in a predetermined direction in the circumferential direction of the socket,
The prosthetic limb , wherein a fibrous member that is inclined in a direction opposite to the predetermined direction in the circumferential direction of the liner is further provided on the outer surface of the liner . The prosthetic limb according to claim 3,
A fibrous member which is provided on the inner surface of the socket and is inclined in a predetermined direction with the stumps of the limbs to which the liner is attached inserted into the insertion part of the socket, and an outer side of the liner A prosthetic limb configured to be in contact with each other with fibrous members inclined in a direction opposite to the predetermined direction provided on the side surface . In the artificial limb according to claim 1 or 2,
An elastic spacer is provided on the bottom surface of the inner surface of the liner.
Prosthetic limbs characterized by that.

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