Compression article

Patent metadata

Field	Value
Publication number	US-11952686-B2
Application number	US-201917057158-A
Country	US
Kind code	B2
Filing date	May 21, 2019
Priority date	May 23, 2018
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

A compression article and method for its production on a flat-bed knitting machine are provided for providing an improved fit to a body part. In the compression article, respectively the number of stitches per stitch row is matched to the radial circumference of the body part to be treated by the compression article. The compression article has a plurality of points which are distributed over its circumference and at which, in a stitch row, at least one of a stitch increase and a stitch reduction is realized. The number of stitches in the wale direction varies over the circumference of the compression article and is matched, in the longitudinal direction of the body part, to the shape of the body part to be treated.

First claim

What is claimed is:

1. A compression article, which is produced from a three-dimensional flat-knitted fabric created on a knitting machine and in which a number of stitches are provided in rows in a circumferential direction and wales in a longitudinal direction respectively and the number of stitches per row is matched to a radial circumference of a body part to be treated by the compression article, wherein, in order to match in the circumferential direction a shape of the body part to be treated, the compression article has a plurality of points at which, in a row, a stitch increase or a stitch reduction with respect to a preceding row is realized, and in that, moreover, the number of stitches in a wale varies over the circumference of the compression article whereby the compression article is additionally matched, in the longitudinal direction, to the shape of the body part to be treated and further in that the compression article is formed of a plurality of strip-shaped segments, which, in the circumferential direction, are separated from one another by zones of varying width in which the stitch increases or stitch decreases are located and the compression article is formed by closing the three-dimensional flat knitted fabric with a longitudinal seam.

2. A compression article produced from a knitted fabric created on a knitting machine and in which a number of stitches are provided in rows in a circumferential direction and wales in a longitudinal direction respectively and the number of stitches per row is matched to a radial circumference of the body part to be treated by the compression article, wherein the compression article is a compression stocking or sleeve formed of a double-layered knitted fabric and wherein, in order to match in the circumferential direction the shape of the body part to be treated, the compression article has a plurality of locations at which, in a row, a stitch increase or a stitch reduction with respect to a preceding row is realized, and in that, moreover, the number of stitches in a wale varies over the circumference of the compression article whereby the compression article is additionally matched, in the longitudinal direction, to the shape of the body part to be treated.

3. The compression article as claimed in claim 1 , having a central longitudinal axis that conforms to a central longitudinal axis of the body part to be treated.

4. The compression article as claimed in claim 2 , wherein the compression article is a three-dimensional flat or circular knitted fabric.

5. The compression article as claimed in claim 2 , wherein the double-layered knitted fabric is closed by a longitudinal seam.

6. The compression article as claimed in claim 2 , wherein the compression article is formed of a plurality of strip-shaped segments, which are separated from one another by zones of non-constant width in which the stitch increases or stitch decreases are located.

7. The compression article as claimed in claim 1 , wherein the compression article is formed of four strip-shaped segments.

8. The compression article as claimed in claim 1 , wherein at least some of the segments have a different number of rows.

9. The compression article as claimed in claim 1 , wherein the side margins of the segments are non-parallel to one another.

10. The compression article as claimed in claim 1 , comprising one or more elastic yarns.

11. The compression article as claimed in claim 10 , wherein the one or more elastic yarns are present as weft threads in the knitted fabric.

12. The compression article as claimed in claim 10 , wherein the one or more elastic yarns are present in the circumferential direction or in the longitudinal direction of the knitted fabric.

13. The compression article as claimed in claim 1 , wherein the number of stitches in each row is arranged such that in use, the compression pressure exerted on the body part decreases from a distal end of the compression article toward a proximal end of the compression article.

14. The compression article as claimed in claim 1 , wherein the fabric is a double-layered or double-faced knitted fabric.

15. A method for producing a compression article on a knitting machine, comprising:
measuring a body part to be supported by the compression article at individual measuring points;
selecting a base pattern for the compression article from a catalogue of base patterns, the measurements of which best conform to the measured body part;
adjusting a stitch count of stitch rows and stitch wales of the base pattern in accordance with the measurements of the body part in a circumferential and longitudinal direction of the body part between the measuring points to define a revised base pattern, wherein the revised base pattern comprises a plurality of longitudinally extending segments, respectively separated from one another in the circumferential direction of the compression article by zones in which the adjustment of the stitch count is implemented;
knitting the revised base pattern on the knitting machine.

16. A method for producing a compression article on a knitting machine, comprising:
measuring a body part to be supported by the compression article, by scanning of the body part;
calculating a necessary number of stitches per stitch row in accordance with a measured circumference of the body part in that region of the body part that is covered by the stitch row;
calculating a necessary number of stitches per wale of the compression article for covering the body part in the longitudinal direction thereof;
calculating points within each stitch row at which a stitch increase or decrease is necessary with respect to a preceding stitch row and at which additional stitches in a wale are required, so that, a central longitudinal axis of the compression article conforms to a central longitudinal axis of the body part;
knitting the compression article, using the calculated stitch counts per stitch row, the calculated points of a stitch increase or decrease in the stitch rows, and the calculated necessary numbers of stitches per wale.

17. The method as claimed in claim 15 , wherein knitting of the compression article is performed on a flat-bed knitting machine or on a circular knitting machine.

18. The method as claimed in claim 15 , wherein the strip-shaped segments are knitted with common thread guides.

19. The method as claimed in claim 15 , wherein the compression article is produced as a seamless tubular knitted fabric.

20. The method as claimed in claim 15 , wherein knitting of the compression article takes place using gusseting techniques.

21. The compression article as claimed in claim 2 , having a central longitudinal axis that conforms to a central longitudinal axis of the body part to be treated.

22. The compression article as claimed in claim 2 , wherein the compression article is a three-dimensional flat or circular knitted fabric.

23. The compression article as claimed in claim 2 , wherein the compression article is a seamless tubular knitted fabric.

24. The compression article as claimed in claim 6 , wherein the compression article is formed of four strip-shaped segments.

25. The compression article as claimed in claim 6 , wherein at least some of the segments have a different number of rows.

26. The compression article as claimed in claim 6 , wherein the side margins of the segments are non-parallel to one another.

27.

Assignees

• Bsn Jobst Gmbh
• Essity Hygiene & Health Ab

Inventors

• Platz Sascha
• Bauer Joachim
• Frankenberg Bernhard

Classifications

• D04B1/265 Primary

  Surgical stockings (of unspecified knit construction and reinforced A41B11/02; of unspecified knit construction and elastic A61F13/08) · CPC title

• D10B2403/0333

  with tubular portions of variable diameter or distinct axial orientation · CPC title

• D10B2509/028

  Elastic support stockings or elastic bandages · CPC title

• D10B2403/0332

  with gussets folding into three dimensional shape, e.g. seat covers · CPC title

• D10B2403/023

  Fabric with at least two, predominantly unlinked, knitted or woven plies interlaced with each other at spaced locations or linked to a common internal co-extensive yarn system · CPC title