JP6193696B2 - Prosthetic socket supporter - Google Patents

Description

  The present invention relates to a prosthetic socket supporter for stably supporting a cut limb with respect to a prosthetic limb socket.

  A prosthetic limb such as a prosthetic hand or a prosthetic leg is provided with a portion (prosthetic limb socket) for fixing the cut end of the cut limb. Conventional prosthetic sockets are generally manufactured by casting a cut end of a cut limb of a prosthetic limb user to produce a mold and pouring a synthetic resin such as silicon resin into the mold. However, such a custom-made prosthetic limb socket has a drawback in that it not only increases the manufacturing cost but also increases the manufacturing period. Moreover, it cannot be said that the feeling of use is good, for example, a sense of restraint is generated in the cut limb fixed to the prosthetic socket.

  In view of such a situation, the present inventors have developed a prosthetic socket 21 having the form shown in FIG. The prosthetic limb socket 21 includes a substantially cylindrical prosthetic limb socket 21 into which the cut limb 30 is inserted from the rear opening end to fix the cut limb 30, and a prosthetic limb tip 22 provided at the tip of the prosthetic limb socket 21. Has been. At the rear opening end of the prosthetic socket 21, a plurality of projecting pieces 21a projecting rearward are provided. The peripheral wall of the prosthetic socket 21 is divided by a slit 21 b provided along the longitudinal direction of the prosthetic socket 21. With the prosthetic socket 21 having such a structure, the form of the prosthetic socket 21 can be changed according to the form of the cut limb 30 inserted therein. Accordingly, it is possible to make the prosthetic socket 21 ready-made and highly versatile so that various people can use it appropriately.

  However, when the cut limb 30 is directly inserted into the prosthetic limb socket 21 in the form shown in FIG. 6, the feel of the resin forming the prosthetic limb socket 21 is directly transmitted to the cut limb 30. In addition, the prosthetic limb socket 21 made of resin is not good in cushioning, breathability, sweat absorption, and the like, and the user may feel uncomfortable. Furthermore, since the region between the two protruding piece portions 21a in the prosthetic socket 21 is a blank portion A where the peripheral wall of the prosthetic socket 21 does not exist, the cut end portion of the cut limb 30 protrudes from the blank portion A. There is also a risk of sticking out. In order to solve these problems, it is necessary to improve the feeling of use of the prosthetic socket 21 and to devise measures for stably supporting the cut limb 30 on the prosthetic socket 21.

  By the way, various products for improving the feeling of use of the prosthesis by interposing between the prosthetic socket and the amputated limb have been proposed (for example, liner 2 in FIG. 1 of Patent Document 1, Patent Document 2). (See the shells 11 and 12 in FIG. 1, the inner 20 in FIG. 1 of Patent Document 3, the liner 2 in FIG. 1 in Patent Document 4, or the inner bag 1 for artificial limbs in FIG. 3 in Patent Document 5). However, any of these products is suitable for the prosthetic limb socket 21 of the form shown in FIG. 6 of the present application (substantially cylindrical prosthetic limb socket 21 provided with a plurality of protruding piece portions 21a at the rear opening end thereof). It cannot be attached to the camera, and cannot solve the above problems.

Special table 2008-539834 gazette Japanese translation of PCT publication 2010-534496 JP 2010-012117 A JP 2011-098038 A JP 2011-12049A

  The present invention has been made to solve the above-described problems, and stably supports a cut limb with respect to a substantially cylindrical prosthetic limb socket in which a plurality of projecting pieces are provided at the rear opening end. Provided is a supporter for prosthetic sockets that can be used. It is also an object of the present invention to provide a prosthetic socket supporter that is excellent in touch, cushioning, breathability and sweat absorption.

The above issues
Stabilizes the amputated limb with respect to the substantially cylindrical prosthetic socket in which a plurality of projecting pieces addressed along the longitudinal direction of the amputated limb with respect to the outer peripheral surface of the amputated limb project backward from the rear opening end A supporter for a prosthetic socket for supporting
A support fabric addressed along the circumferential direction of the cut limb with respect to the outer peripheral surface around the cut end in the cut limb,
A pocket for inserting the protruding piece portion is provided at a position overlapping the protruding piece portion in the support fabric,
When the support fabric is fixed to the prosthetic limb socket by inserting the protruding piece into the pocket, the protruding piece is positioned next to the protruding piece and the protruding piece. The problem is solved by providing a supporter for a prosthetic socket characterized in that the region (blank part) between the other projecting piece parts is covered with the support fabric.

  Most of the supporter for prosthetic sockets of the present invention is made of fabric (knitted fabric, woven fabric, non-woven fabric, etc.), so it is not only soft to the touch, but also excellent in cushioning, breathability and sweat absorption. It has become a thing. The prosthetic socket supporter of the present invention is hygienic because it can be washed in a washing machine or the like when it becomes dirty with sweat. Further, when the prosthetic socket supporter of the present invention is attached to the prosthetic socket, the gap (blank part) of the protruding piece of the prosthetic socket is covered with the support fabric, so that the cut end of the cut limb is the blank part. It is also possible not to stick out (do not stick out). Furthermore, the supporter for prosthetic sockets of the present invention can be easily mounted.

  In the prosthetic socket supporter of the present invention, it is preferable to provide an anti-slip means for the projecting piece portion at a position in contact with the outer surface of the projecting piece portion on the inner surface of the pocket. Thereby, it becomes possible to prevent the protruding piece portion inserted into the pocket from coming out of the pocket. Therefore, the prosthetic socket supporter can be more firmly fixed to the prosthetic socket.

  In the prosthetic socket supporter of the present invention, it is also preferable to provide a non-slip means for the cut limb at a position in contact with the outer peripheral surface of the cut limb on the inner surface of the support fabric. Thereby, it becomes possible to prevent the cut limb from coming out of the prosthetic socket supporter. Therefore, the cut limb can be more firmly fixed to the prosthetic socket supporter.

  Furthermore, in the prosthetic socket supporter of the present invention, the support fabric is composed of a main body portion and a belt portion for connecting one end of the main body portion to the other end, and by adjusting the length of the belt portion. It is also preferable to be able to adjust the dimensions. As a result, the prosthetic socket supporter can be easily adjusted in size while having a simple structure.

  As described above, according to the present invention, there is provided a prosthetic socket supporter capable of stably supporting a cut limb with respect to a substantially cylindrical prosthetic socket having a plurality of protruding piece portions provided at the rear opening end thereof. It becomes possible to do. It is also possible to provide a prosthetic socket supporter that is excellent in touch, cushioning, breathability and sweat absorption.

It is the figure which showed the state which mounted | wore the prosthetic socket with the supporter for prosthetic sockets which concerns on this invention, and fixed the cut limb. It is the figure which showed the state which mounts the prosthetic socket supporter which concerns on this invention to a prosthetic socket. It is the figure which showed the state which made the supporter for artificial limb sockets which concerns on this invention cylindrical. It is the figure which showed the state which looked at the state which expand | deployed the supporter for prosthetic sockets which concerns on this invention from the front side. It is the figure which showed the state which looked at the state which expanded the supporter for prosthetic sockets concerning this invention from the back side. It is the figure which showed the state which inserted the cutting | disconnection leg | limb with respect to the substantially cylindrical prosthetic limb socket in which two protrusion pieces protruded back from the back opening end.

  The preferred embodiment of the supporter for prosthetic sockets of the present invention will be described more specifically with reference to the drawings. FIG. 1 is a view showing a state where a prosthetic socket supporter 10 according to the present invention is attached to a prosthetic socket 21 and a cut limb 30 is fixed. FIG. 2 is a view showing a state in which the prosthetic socket supporter 10 according to the present invention is mounted on the prosthetic socket 21. FIG. 3 is a view showing a state where the prosthetic socket supporter 10 according to the present invention is cylindrical. FIG. 4 is a view showing a state in which the prosthetic socket supporter 10 according to the present invention is unfolded as viewed from the front side. FIG. 5 is a view showing a state in which the prosthetic socket supporter 10 according to the present invention is unfolded as viewed from the back side. The prosthetic socket supporter 10 of this embodiment is used by being mounted on the prosthetic limb 20 having the configuration shown in FIG.

* Prosthesis First, the prosthesis 20 to which the prosthesis socket supporter 10 is attached will be described. In the present embodiment, as shown in FIG. 1, the prosthetic limb 20 includes a substantially cylindrical prosthetic socket 21 into which the cut limb 30 is inserted from the rear opening end to fix the cut limb 30, and a distal end portion of the prosthetic limb socket 21. It comprises a prosthetic limb tip 22 provided. The prosthetic limb 20 may be either a prosthetic hand or a prosthetic leg, but FIG. 1 shows a case where the prosthetic limb 20 is a prosthetic hand. That is, the cut limb 30 in FIG. 1 is an arm cut between the elbow and the wrist. The prosthetic limb tip 22 is configured by a drive mechanism including a plurality of finger-shaped actuators 22a so that an object or the like can be grasped. On the other hand, when the prosthetic limb 20 is a prosthetic leg, the prosthetic limb tip 22 is usually a foot-shaped structure or a driving body.

  As shown in FIG. 2, the prosthetic limb socket 21 in the prosthetic limb 20 is provided with a plurality of protruding piece portions 21a protruding rearward from the rear opening end. The number of the projecting piece portions 21a is not particularly limited, but is usually 4 or less, preferably 3 or less, and more preferably 2 pieces. In the present embodiment, the number of projecting piece portions 21a is two. As shown in FIG. 1, these protruding piece portions 21 a are portions that are addressed along the longitudinal direction of the cut limb 30 with respect to the outer peripheral surface of the cut limb 30 and the outer peripheral surface of the ulna. These projecting pieces 21 a can stably support the cut limb 30 inside the prosthetic socket 21.

  As shown in FIG. 2, the region between the two protruding piece portions 21 a in the prosthetic socket 21 is a portion (blank portion A) where the peripheral wall of the prosthetic socket 21 does not exist. In this embodiment, the blank part A is provided in two places on the prosthetic socket 21 on the front side (palm side) and the back side (back side). The peripheral wall of the prosthetic socket 21 is divided by a slit 21 b provided along the longitudinal direction of the prosthetic socket 21. Thus, the protrusion 21 is provided at the rear opening end of the prosthetic socket 21 (in other words, a recessed portion (blank part A) is provided at the rear opening end of the prosthetic socket 21), and the prosthetic socket 21 is provided. By providing the slit 21b in the peripheral wall, the diameter of the prosthetic socket 21 can be changed according to the diameter of the cut limb 30 inserted therein. Therefore, it is possible for the user of the prosthetic limb 20 not to feel excessive restraint on the amputated limb 30 on which the prosthetic limb 20 is worn.

  The material of the prosthetic socket 21 is not particularly limited as long as it can exhibit the required strength, but a resin is usually used.

* Prosthetic socket supporter Next, the prosthetic socket supporter 10 will be described. As shown in FIGS. 4 and 5, the prosthetic socket supporter 10 according to the present embodiment includes a main body portion 11 having a substantially rectangular shape and a belt-like belt portion 12 fixed to one end of the main body portion 11. Consists of dough.

** Body (support fabric)
As shown in FIG. 1, the main body portion 11 in the support fabric is a portion arranged along the inner peripheral surface of the prosthetic socket 21 when the prosthetic socket supporter 10 is mounted on the prosthetic socket 21. The socket 21 is a part for preventing the socket 21 from coming into direct contact with the cut limb 30. Thereby, cushioning property, breathability, and sweat absorption can be expressed on the inner peripheral surface of the prosthetic limb socket 21, and the feeling of use of the prosthetic limb 20 can be improved. Moreover, the main-body part 11 is a part for covering the blank part A of the front side (back side) among the blank parts A provided in two places in the prosthetic socket 21. Thereby, it can prevent that the front-end | tip part of the cutting limb 30 accommodated in the inside of the prosthetic limb socket 21 protrudes (projects out) from the blank part A of a front side.

  A plurality of pockets 11 a are provided on the front side (outer surface) of the main body 11. As shown in FIG. 2, the pocket 11 a is a portion for inserting the protruding piece 21 a in the prosthetic socket 21 when the prosthetic socket supporter 10 is attached to the prosthetic socket 21. By inserting the projecting piece 21a into the pocket 11a, not only the prosthetic socket supporter 10 is accurately positioned with respect to the prosthetic socket 21, but also the prosthetic socket supporter 10 attached to the prosthetic socket 21 is used. The prosthetic socket supporter 10 can be prevented from rotating relative to the prosthetic limb socket 21 and prevented from falling off the prosthetic limb socket 21. The pocket 11a is provided at a position that overlaps with the protruding piece 21a in the main body 11 (support fabric) when the prosthetic socket supporter 10 is mounted on the prosthetic socket 21.

  The specific form of the main body part 11 in the support fabric is not particularly limited. In the prosthetic socket supporter 10 of the present embodiment, as shown in FIGS. 4 and 5, when the prosthetic socket supporter 10 is deployed, the main body 11 is formed in a substantially rectangular shape. The rear end edge (upper edge in FIGS. 4 and 5) and the front end edge (lower edge in FIGS. 4 and 5) are curved so as to be recessed inward, and the cut limb 30 is used for a prosthetic socket. It is possible to reduce a sense of restraint when the supporter 10 is wound. Also, the specific form of the pocket 11a is not particularly limited, but it is preferable to match the form of the protruding piece part 21a inserted therein. In the prosthetic socket supporter 10 of this embodiment, each pocket 11a has a substantially triangular shape.

  The material of the main body 11 in the support fabric is not particularly limited, but it is preferable to select a material excellent in cushioning properties, breathability, and sweat absorption. Specifically, a knitted fabric, a woven fabric or a knitted fabric made of synthetic fiber or natural fiber is exemplified. The main body 11 may have a multi-layer structure composed of a surface material (a cloth forming the outer surface of the main body 11) and a lining (a cloth forming the inner surface of the main body 11) made of the above material. In this case, when a cushioning material having cushioning properties such as a foamed resin sheet is placed in the gap between the outer material and the lining material, the cushioning properties of the main body 11 can be further enhanced.

  In addition, it is preferable to provide anti-slip means for the cut limb on the inner surface of the main body 11 (the surface that contacts the outer peripheral surface of the cut limb 20 when the cut limb 30 is supported by the prosthetic socket supporter 10). As a result, the cut limb 30 can be prevented from coming out of the prosthetic socket supporter 10. Examples of the anti-slip means for the cut limb include a method of increasing the friction coefficient of the inner surface of the main body 11. For example, by attaching a non-slip material having a large surface friction coefficient such as a urethane sheet or a rubber sheet to the inner surface of the main body part 11, increasing the friction coefficient of the inner surface of the main body part 11 can increase the air permeability of the main body part 11. There is a risk of sweat absorption. For this reason, when a non-slip material is attached to the inner surface of the main body 11, it is preferable that the non-slip material is applied to the inner surface of the main body 11 instead of the entire inner surface.

  In the prosthetic socket supporter 10 of the present embodiment, a back span power net (non-slip yarn (for example, polyurethane yarn) having a large coefficient of friction) is used as the lining of the main body 11 (the fabric forming the inner surface of the main body 11). And a non-slip thread seam appearing on the inner surface of the main body 11 using a fabric formed so that a seam (a seam arranged like a tatami) appears on the inner surface of the main body. Thus, an anti-slip function is imparted to the inner surface of the main body 11. Thereby, the non-slip effect on the inner surface of the main body 11 can be greatly improved while ensuring the air permeability and sweat absorption of the main body 11.

  The material of the pocket 11a (the material of the fabric forming the pocket 11a) is not particularly limited. Examples of the material of the pocket 11a include a knitted fabric, a woven fabric or a knitted fabric made of synthetic fiber or natural fiber. It is preferable to provide anti-slip means for the projecting piece portion on the inner surface of the pocket 11a (the surface in contact with the outer surface of the projecting piece portion 21a inserted into the pocket 11a). Thereby, it becomes possible to prevent the protruding piece portion 21a inserted into the pocket 11a from coming out of the pocket 11a. Examples of the anti-slip means for the cut limb include a method of increasing the friction coefficient of the inner surface of the pocket 11a. For example, the friction coefficient of the inner surface of the pocket 11a can be increased by attaching a non-slip material having a large surface friction coefficient to the inner surface of the pocket 11a, such as a urethane sheet or a rubber sheet. The pocket 11a is not particularly required to have air permeability or sweat absorption. For this reason, it is preferable that the non-slip material is attached to substantially the entire inner surface of the pocket 11a.

** Belt (support fabric)
As shown in FIG. 1, the belt portion 12 in the support fabric is a portion for connecting one end of the main body 11 to the other end when the prosthetic socket supporter 10 is attached to the prosthetic socket 21. Thereby, it is possible not only to maintain the main body portion 11 in a cylindrical shape but also to firmly fix the prosthetic socket supporter 10 to the outer peripheral portion of the cut limb 30. Moreover, the belt part 12 is a part for covering the blank part A of the back side (back side) among the blank parts A provided in two places in the prosthetic socket 21. Thereby, it can prevent that the front-end | tip part of the cutting limb 30 accommodated in the inside of the prosthetic socket 21 protrudes (projects out) from the blank part A of the back side.

  The belt portion 12 in the support fabric may be one in which only one end portion thereof is fixed to the main body portion 11 or may be one in which both end portions thereof are fixed to the main body portion 11. In the latter case, the belt portion 12 is provided with an adjuster (such as kakukan) or a hook-and-loop fastener used for adjusting the length of the shoulder back belt. In the prosthetic socket supporter 10 of this embodiment, as shown in FIGS. 4 and 5, the tip end of the belt portion 12 is not fixed to the main body 11 at the time of deployment (with respect to the main body 11). It is a free end (detachable), and only the base end portion of the belt portion 12 is a fixed end fixed to one end of the main body portion 11.

  The means (belt part attaching / detaching means) for fixing the tip part (free end) of the belt part 12 to the main body part 11 in a detachable state is not particularly limited. Examples of the belt portion attaching / detaching means include those using hook-and-loop fasteners, buttons, and kakukan. In the prosthetic socket supporter 10 of the present embodiment, as shown in FIG. 4, surface fasteners 12 a and 12 b are provided on the base end portion and the tip end portion of the outer surface of the belt portion 12, respectively, and on the side opposite to the belt portion 12 The pocket 11b is provided on the outer surface of the pocket 11a. One of the surface fasteners 12a and 12b is a hook surface (A surface), and the other is a loop surface (B surface). As a result, as shown in FIG. 3, after the front end portion of the belt portion 12 is passed through the kakukan 11b and folded, the front end portion of the belt portion 12a can be fixed to the base end portion. The length of the belt portion 12 can be adjusted by changing the location where the tip portion is fastened.

  The material of the belt portion 12 in the support fabric is not particularly limited, but it is preferable to select a material excellent in cushioning property, air permeability, and sweat-absorbing property like the main body portion 11. Specifically, a knitted fabric, a woven fabric or a knitted fabric made of synthetic fiber or natural fiber is exemplified. The belt portion 12 may have a multi-layer structure composed of a surface material (a fabric that forms the outer surface of the belt portion 12) and a lining (a fabric that forms the inner surface of the belt portion 12) made of the above materials. In this case, when a cushioning material having cushioning properties such as a foamed resin sheet is placed in the gap between the outer material and the lining material, the cushioning properties of the main body 11 can be further enhanced. The inner surface of the belt portion 12 (the surface that comes into contact with the outer peripheral surface of the cut limb 20 when the cut limb 30 is supported by the prosthetic socket supporter 10) is provided with anti-slip means for the cut limb, similar to the main body portion 11. Also good.

10 Prosthetic socket supporter 11 Body (support fabric)
11a pocket 11b kakukan 12 belt (support fabric)
12a Hook fastener 12b Hook fastener 20 Prosthesis 21 Prosthesis socket 21a Projection piece 21b Slit 22 Prosthesis tip 22a Actuator 30 Cut limb A Blank part

Claims (4)

Stabilizes the amputated limb with respect to the substantially cylindrical prosthetic socket in which a plurality of projecting pieces addressed along the longitudinal direction of the amputated limb with respect to the outer peripheral surface of the amputated limb project backward from the rear opening end A supporter for a prosthetic socket for supporting
A support fabric addressed along the circumferential direction of the cut limb with respect to the outer peripheral surface around the cut end in the cut limb,
A pocket for inserting the protruding piece portion is provided at a position overlapping the protruding piece portion in the support fabric,
When the support fabric is fixed to the prosthetic limb socket by inserting the protruding piece into the pocket, the protruding piece is positioned next to the protruding piece and the protruding piece. A prosthetic socket supporter characterized in that a region between other projecting pieces is covered with a support fabric.   The prosthetic socket supporter according to claim 1, wherein an anti-slip means for the projecting piece portion is provided at a position in contact with the outer surface of the projecting piece portion on the inner surface of the pocket.   The supporter for prosthetic sockets according to claim 1 or 2, wherein non-slip means for the cut limb is provided at a position in contact with the outer peripheral surface of the cut limb on the inner surface of the support fabric.   The support fabric is composed of a main body portion and a belt portion for connecting one end of the main body portion to the other end, and the size can be adjusted by adjusting the length of the belt portion. The supporter for prosthetic sockets of any one of -3.

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