EP0079341A1 - Verfahren zur herstellung einer näheinheit. - Google Patents
Verfahren zur herstellung einer näheinheit.Info
- Publication number
- EP0079341A1 EP0079341A1 EP82901401A EP82901401A EP0079341A1 EP 0079341 A1 EP0079341 A1 EP 0079341A1 EP 82901401 A EP82901401 A EP 82901401A EP 82901401 A EP82901401 A EP 82901401A EP 0079341 A1 EP0079341 A1 EP 0079341A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- needle
- thread
- sewing
- loop
- eye
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 5
- 241000270923 Hesperostipa comata Species 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000009958 sewing Methods 0.000 claims description 75
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B85/00—Needles
Definitions
- Sewing unit made of sewing needle and piece of thread and process for their manufacture
- the invention relates to a sewing unit consisting of a sewing needle having a needle eye and a piece of thread connected to the sewing needle.
- Sewing units which consist of a sewing needle with a sewing thread attached to it, are known in various designs, but have only been able to establish themselves for practical use in special applications, for example in surgery (ÜS-PS 2 814 296, 3 877 570 and 1 110 468).
- ÜS-PS 2 814 296, 3 877 570 and 1 110 468 The manufacture of such sewing units is complex, but this effort is practically insignificant in view of this special application, where a considerable amount of packaging and sterilization is required.
- the manufacture is too complex and is therefore not considered.
- the thread piece From surgery it is also known to use special needles and to reliably connect them to the thread piece (FR-PS 433 704 and 540 552).
- the thread In the first embodiment mentioned, the thread must be passed twice through the eye of the needle to form a reliable connection, as a result of which the connection is correspondingly strong and would protrude beyond the cross-section of the needle if the needle shaft were not larger and the end part of the needle would be made correspondingly small in the area of the eye of the needle. Nevertheless, the connection of the thread at the eye of the needle is not reliable since it can open when the thread is pushed.
- two openings i.e. A double eye of a needle can be provided so that the thread can be connected to the surgical needle. Since here the sewing thread has to be passed one after the other through the first and the second eye of the needle, even twice through the second eye of the needle, the production of the connection is complex and is therefore out of the question for mass production.
- the thread piece is connected to the sewing needle by means of a pullable loop which is arranged on the needle eye and extends snugly in the direction of the axis of the sewing needle over the needle web lying between the needle eye and the needle end .
- a method is proposed in which a thread loop is formed on the eye of the needle on one side of the sewing needle, whereupon the thread loop on the other side of the sewing needle is wrapped around the two thread branches and a loop is drawn by pulling the thread branches is formed at the eye of the needle.
- FIG. 1 shows a view of a first embodiment of the connection of a thread with a sewing needle to a sewing unit
- FIG. 2 shows a longitudinal section through the shaft end of the sewing needle of the sewing unit according to FIG. 1,
- FIGS. 1 and 2 show a schematic representation of a manufacturing method for the sewing unit according to FIGS. 1 and 2,
- FIG. 5 shows the sewing unit according to FIG. 4, but with the knot drawn, FIG.
- Fig. 6 shows a third connection of a thread with a sewing needle to a sewing unit by a double knot
- Fig. 7 shows the sewing unit of Fig. 6 with the knot
- the invention is based on the consideration that the known conventional sewing needle, which is manufactured as a mass product, is used for the sewing unit, so that no impairment of the usual sewing habits has to be accepted.
- a sewing needle with a previously threaded thread is not usable, since the sewing thread itself when unwinding from the pack as well as when sewing from the eye of the needle can pull.
- FIG. 1 and 2 show a connection between a thread piece 4 and a sewing needle 1 to form a sewing unit, in which the thread piece 4, which is formed from two thread branches 6, 7 converging into a loop, is formed by the Needle eye 2 of the sewing needle 1 is guided and wraps around the two thread branches 6, 7 with a thread loop 5; the production of the connection in the form of this thread loop 5 is shown in FIG. 3
- the piece of thread 4 passed through the eye of the needle 2 is drawn out into a thread loop 3 such that the sewing needle 1 is pivoted through the thread loop 3 in the direction of the arrow and is then pulled downwards, thereby reducing the thread loop 3 and finally the thread loop 5 is formed.
- the part of the thread piece 4 which forms the thread loop 5 is aligned with the sewing needle 1 and surrounds the needle web 12 which closes the needle eye 2, in such a way that the loop 5 nowhere over the projection of the cross section of the needle 1 protrudes.
- the thread piece is then cut to the desired length and the sewing unit is packed.
- a double knot loop 11 is formed here, which forms a double knot 11 ′ after the thread piece 4 is pulled in, which is located directly below the needle web 12. In this case too, it is possible to lay the double knot 11 'in such a way that it is within the projection of the cross section of the
- FIGS. 1 and 2 show the mechanical production of the thread loop 5 according to FIGS. 1 and 2.
- a thread loop 3 is blown through the needle eye 2 of the sewing needle 1 and the ear 9 of a curved needle 8 lying against the needle eye 2, which loop corresponds to that according to FIG. 3.
- the thread loop 3 is retained in a depression 14, while, see FIG. 9, the curved needle 8 is guided through the thread loop 3 from below.
- the bent needle 8 is pulled out upward, see FIG. 10, and the loop 5 is formed by pulling the thread loop 3, see FIG. 11. All movements can be carried out mechanically, so that the formation of the loop 5 is possible without manual help.
- the mechanical devices required for this automation of the manufacture of the sewing units are economically related to the product, since a reusable, commercially available sewing needle is used and the consumer has the option of using one piece of thread with one or two threads to sew branches.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813120474 DE3120474A1 (de) | 1981-05-20 | 1981-05-20 | Naeheinheit, bestehend aus einer naehnadel mit einem daran befestigten naehfaden und verfahren zur befestigung des naehfadens an der naehnadel |
DE3120474 | 1981-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0079341A1 true EP0079341A1 (de) | 1983-05-25 |
EP0079341B1 EP0079341B1 (de) | 1986-06-25 |
Family
ID=6133022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82901401A Expired EP0079341B1 (de) | 1981-05-20 | 1982-05-18 | Verfahren zur herstellung einer näheinheit |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0079341B1 (de) |
DE (2) | DE3120474A1 (de) |
GB (1) | GB2110730B (de) |
WO (1) | WO1982004080A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR433704A (fr) * | 1911-08-29 | 1912-01-15 | Joseph Summers Turner | Aiguille chirurgicale |
FR540552A (fr) * | 1921-01-17 | 1922-07-13 | Aiguille chirurgicale perfectionnée | |
US2179834A (en) * | 1938-11-19 | 1939-11-14 | Surbeck Leighton Homer | Needle-threading device |
CH445014A (de) * | 1966-08-15 | 1967-10-15 | Dell Olivo Ernst | Aus einer Nadel und einem Faden bestehende Vorrichtung für Augenoperationen |
-
1981
- 1981-05-20 DE DE19813120474 patent/DE3120474A1/de not_active Withdrawn
-
1982
- 1982-05-18 WO PCT/CH1982/000070 patent/WO1982004080A1/en active IP Right Grant
- 1982-05-18 GB GB08301454A patent/GB2110730B/en not_active Expired
- 1982-05-18 DE DE82CH8200070T patent/DE3245999D2/de not_active Expired
- 1982-05-18 EP EP82901401A patent/EP0079341B1/de not_active Expired
Non-Patent Citations (1)
Title |
---|
See references of WO8204080A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3120474A1 (de) | 1982-12-16 |
GB2110730B (en) | 1985-06-05 |
WO1982004080A1 (en) | 1982-11-25 |
GB2110730A (en) | 1983-06-22 |
GB8301454D0 (en) | 1983-02-23 |
EP0079341B1 (de) | 1986-06-25 |
DE3245999D2 (en) | 1983-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19830114 |
|
AK | Designated contracting states |
Designated state(s): FR |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LOESCHER, HELMUT |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
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AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): FR |
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ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
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26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19880129 |
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