DE102021000537B4 - Prosthesis for the use of crutches in connection with a shortened or missing arm - Google Patents

Abstract

Prosthesis for the use of forearm crutches, in connection with a shortened or missing arm, consisting of a grip hole (1), a first connecting column (2), two recesses (3) and an open funnel (4), the grip hole (1) forms the lower end of the prosthesis and the handle of the crutch can be guided through the round bore of the handle hole (1), the surface around the handle hole (1) being flattened on the front and back so that the prosthesis can be attached better to the shaft of the crutch the first connecting column (2) is perpendicular to the handle hole (1) and connects it to the open funnel (4), and the open funnel (4), which represents an insertion option for the missing or shortened arm, is vertical on the connecting column, open at the top, characterized by the following features: a) the prosthesis consists of one piece, b) the two recesses (3) on the back of the first connecting column (2) are perpendicular to the longitudinal axis of the first connecting column (2 ) arranged to offer the possibility of additionally attaching the prosthesis to the forearm crutch.

Description

It is known that a large number of prostheses are currently available. A replacement part of the body is called a prosthesis. Among other things, this replaces limbs and their functionality as an artificially created product. With the help of prostheses, those affected can be helped in everyday situations. In order to ensure perfect use, an optimal fit of the prosthesis is essential. This involves a great deal of effort, since the body replacement piece has to come as close as possible to the missing body part. This includes long waiting times and high costs. Furthermore, most prostheses that can be purchased are intended for long-term use.

Closest prior art ( DE 10 2018 200 822 A1 ) describes a gripping model as a substitute for a hand, which can be attached to the end of a handleless arm or an arm prosthesis. The gripping module has two gripping surfaces, which are the same as the grip hole I described, the outer surfaces of the gripping module are also flat, the gripping module is also perpendicular to the object to be gripped.

The invention specified in claim 1 is based on the problem that no prostheses are offered in connection with forearm crutches that are profitable over a short period of time. In particular, the range of cheap and quickly deliverable prostheses can be expanded.

The aim of the invention is to enrich the market for prostheses. The prosthesis should be able to be individually adapted to the person concerned, no long waiting time for the product should be promised and a cost-effective alternative should be offered.

The 3D printing process was selected to solve the problem. This offers a low production time, regardless of the degree of complexity of the prosthesis. Furthermore, only biodegradable materials are used in production and is therefore absolutely contemporary. Due to the low production costs, the invention offers a solution for everyone concerned.

An advantageous embodiment of the invention is specified in claim 2.

An embodiment of the invention is shown in the first drawing and is described in more detail below. The invention is basically used for people who are missing part of their arm and are dependent on crutches for a certain period of time.

Various examples are intended to explain the previous in more detail.

Example 1:

Dysmelia is a congenital malformation of parts of the body, such as the arm. For example, if those affected experience an accident resulting in a broken foot, they are dependent on crutches for a period prescribed by the doctor. In order to be able to use the walking aid, the person concerned can be offered the invention, the prosthesis. Here, the person relies on rapid production, since they are dependent on the walking aid. Furthermore, the desired prosthesis must make financial sense in the short term. In use, the handle of the forearm crutch is guided through the handle hole [BZ 1 - Drawing 1] and thus ensures vertical stability. A first connecting column [BZ 2 - drawing 1] connects the lower and upper part with each other, this can be adjusted in length, depending on the customer's needs, and thus adjusts the length of the forearm. Two recesses [BZ 3 - drawing 1] offer the possibility of additionally fastening the prosthesis. Here, for example, Velcro can be used, since it can be operated with one hand. In the upper part [BZ 4 - Drawing 1] is the insertion funnel, into which the stump (name for a shortened limb) can be inserted. The width of the upper part can also be adjusted to the body dimensions of the person concerned.

Example 2:

The focus here is on people who have lost part of their arm in other ways, for example in the army or on the road. For these people, the remedy is essential because the situation is new to them. In this example, the assumption is that the person concerned only has part of his upper arm. There is a modification of the prosthesis for this purpose, this modification has a grip hole for the handle [BZ 1 - Drawing 2], a first connecting column [BZ 2 - Drawing 2], two recesses for additional stability [BZ 3 - Drawing 2], an open one Funnel for the residual limb [BZ 4 - Drawing 2], a closed funnel, which adjusts the elbow, and a second, angled connecting column. The open funnel [BZ 4 - Drawing 2] attaches to the second, angled connecting column and is aligned at the same angle. The angle is used to adjust the elbow position. The closed funnel provides the broad part of the forearm there, this gives additional stability.

The advantages achieved with the invention consist in particular in the flexibility and spontaneity with regard to the needs of the customer and the demand. If the fit needs to be corrected, it can be reacted to quickly and a replacement can be delivered quickly. Furthermore, there is an advantage in the manufacturing costs, since these are particularly low, the prostheses are profitable for use for a few weeks. The many advantages are largely due to the 3D printing process, with the help of which an individual prosthesis can be produced within a few hours. The production time is independent of the degree of complexity.

Reference list:

Reference number 1

grip hole

Reference number 2

First connecting column

Reference number 3

recess

Reference number 4

open funnel

Claims (2)

Prosthesis for the use of forearm crutches, in connection with a shortened or missing arm, consisting of a grip hole (1), a first connecting column (2), two recesses (3) and an open funnel (4), the grip hole (1) forms the lower end of the prosthesis and the handle of the crutch can be guided through the round bore of the handle hole (1), the surface around the handle hole (1) being flattened on the front and back so that the prosthesis can be attached better to the shaft of the crutch the first connecting column (2) is perpendicular to the handle hole (1) and connects it to the open funnel (4), and the open funnel (4), which represents an insertion option for the missing or shortened arm, is vertical on the connecting column, open at the top, characterized by the following features: a) the prosthesis consists of one piece, b) the two recesses (3) on the back of the first connecting column (2) are perpendicular to the longitudinal axis of the first connecting column (2 ) arranged to offer the possibility of additionally attaching the prosthesis to the forearm crutch. prosthesis after claim 1 with extensions within the scope of an embodiment, which is intended for the case of a shortened or partially missing upper arm, consisting in addition to the first connecting column (2), a second connecting column, an open funnel (4) and a closed funnel, one on the handle hole (1) arranged on the first connecting column and two recesses (3) arranged on the first connecting column, with the following additional features, c) the closed funnel, which is positioned vertically on the first connecting column (2) and here the wide end piece of the missing represents the forearm, and the widening also ensures additional stability, d) a second connecting column, which is angled and attaches to the closed funnel and is intended to replace the elbow joint, e) an open funnel (4), which opens upwards according to the angle of the second connecting column is, this offers the possibility to insert the residual limb.

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