JPS632019Y2 - - Google Patents

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Publication number
JPS632019Y2
JPS632019Y2 JP19225184U JP19225184U JPS632019Y2 JP S632019 Y2 JPS632019 Y2 JP S632019Y2 JP 19225184 U JP19225184 U JP 19225184U JP 19225184 U JP19225184 U JP 19225184U JP S632019 Y2 JPS632019 Y2 JP S632019Y2
Authority
JP
Japan
Prior art keywords
thread
needle
suture
strength
notch
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.)
Expired
Application number
JP19225184U
Other languages
Japanese (ja)
Other versions
JPS61109505U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP19225184U priority Critical patent/JPS632019Y2/ja
Publication of JPS61109505U publication Critical patent/JPS61109505U/ja
Application granted granted Critical
Publication of JPS632019Y2 publication Critical patent/JPS632019Y2/ja
Expired legal-status Critical Current

Links

Description

【考案の詳細な説明】[Detailed explanation of the idea]

<産業上の利用分野> 本考案は手術に使用される縫合針に関するもの
である。 <従来の技術> 従来、縫合針とこれに取り付けられる縫合糸と
の組み合わせには目付針に糸を通して取り付けた
ものと、針の末端に穿孔された針穴の中に糸の先
端を挿入してこれをかしめて一体的に取り付ける
糸付縫合針の二種があり、前者は手術室で糸と針
とを取り付けなければならないと共に縫合時に組
織を傷付ける欠点があり、又後者は糸が組織を通
過した後で糸をその都度ハサミで切断しなければ
ならず、時間の無駄と場合によつてはその切断の
為の補助者が一人多く必要となる等の欠点を有し
ていた。 最近になつて上述の欠点を改善する為に例えば
特公昭58−39544号公報(以下A発明という)、特
開昭49−61980号公報(以下B発明という)、同50
−119487号公報(以下C発明という)に示す様な
新しい技術が開発されて来た。 前記A発明は糸と針穴とのカシメ加工を制御す
ることによつて針から糸を引き抜く力を調節した
ものであるが、針穴内径及び糸径及びカシメ工程
には夫々非常に大きなバラツキがある為にこれを
正確に制御管理することは極めて困難であり、均
一な製品を大量に生産することが出来ない欠点を
有している。B発明は糸を取り付けた後で針から
糸を引抜く動作を加えて引き抜き値が希望の数値
迄下がつた所で引き抜きを中止して製品化する方
法であるが、個々の針に引き抜きを与えた上で所
定位置で中止することは極めて作業性が悪く大幅
なコスト高になる欠点を有している。更にC発明
は針を溝状に形成し、糸をこの溝内に接着する方
法であるが、この溝構造は縫合の際に組織を大き
く傷める等の欠点を有している。 従つてこれ等のA,B,C発明も共に満足すべ
きものでなく、実用化されるには至つていないも
のである。 <考案が解決しようとする問題点> 本考案に係る縫合針は従来のこれ等の欠点に鑑
み開発された全く新規な技術に関するものであつ
て、特に針から糸を簡単かつ確実にはずすことが
出来る糸付針を安価に大量生産しようとするもの
である。 <問題点を解決するための手段> 本考案に係る糸付縫合針は前述の技術と全く異
なり、針に一体的に取付固定された糸を必要に応
じて切断することが出来、これによつて針と糸と
を極めて簡単かつ確実に分離するものである。 その一実施例を図により具体的に説明すると、
第1図に於いて、1は縫合針であつて、その末端
には縫合糸2が針穴にカシメられることによつて
一体的に取付固定されている。次にこの糸2の針
1に近い部分には切欠3が穿設され、この部分の
糸2の強度を一定範囲で弱くし、必要に応じて糸
2を強く引張ることによつて糸2をこの部分から
容易に切断し得る如く構成されている。 <作用> 本考案に係る糸付縫合針は上述の如く、針1に
近い糸2の一部に切欠3を設けたので、縫合が終
わつた後で針1から糸2を切り離す場合は糸2或
いは糸2に一体的に固定された針1を引張ること
によつて糸2を切欠3の部分より容易に切断し、
これによつて針1と糸2とを簡単に分離すること
が出来る。 <実施例> 上記実施例に於いては、糸2の一部に切欠3を
設けることによつて糸2の一部の強度を弱くした
が、第2図に示す如く、コラーゲン等の熱に弱い
性質を持つた材料から出来ている糸2の場合には
針1に近い一部4を一定温度で加熱したり、或い
はその一部4にγ線を一定量線状に照射したりし
て、この一部4を周りより弱くして構成すること
も可能である。また前述の如き切欠3を糸2に設
ける替わりにこの部分にミシン目状の細い破線等
を穿設して構成することも可能である。 針の近くの糸の一部を針と糸との取付強度或い
は糸自体の強度よりも弱く構成するに当たつて
は、種々の実験を行つた。次表に例示するような
数値にした場合に良好な評価が医師から得られ
た。 実験に使用されたナイロン糸 2−0,3−0,4−0,5−0の4種類 糸自体の強度を弱くする例
<Industrial Application Field> The present invention relates to a suture needle used in surgery. <Conventional technology> Conventionally, the combination of a suture needle and suture thread attached to the suture needle is one in which the thread is threaded through a threaded needle, and one in which the tip of the thread is inserted into a needle hole punched at the distal end of the needle. There are two types of suture needles with threads that are integrally attached by caulking.The former requires the thread and needle to be attached in the operating room and has the disadvantage of damaging the tissue during suturing, and the latter allows the thread to pass through the tissue. After cutting, the thread must be cut with scissors each time, which has disadvantages such as a waste of time and, in some cases, the need for an extra person to help with the cutting. Recently, in order to improve the above-mentioned drawbacks, for example, Japanese Patent Publication No. 58-39544 (hereinafter referred to as invention A), Japanese Patent Application Publication No. 49-61980 (hereinafter referred to as invention B),
A new technology has been developed as shown in Publication No.-119487 (hereinafter referred to as invention C). Invention A adjusts the force for pulling out the thread from the needle by controlling the crimping process between the thread and the needle hole, but there are very large variations in the inner diameter of the needle hole, the thread diameter, and the crimping process. Therefore, it is extremely difficult to control and manage this accurately, and it has the disadvantage that uniform products cannot be produced in large quantities. Invention B is a method of commercializing a product by adding an action to pull out the thread from the needle after attaching the thread, and stopping the pulling when the pull-out value drops to a desired value. Applying the pressure and then stopping at a predetermined position has the drawback of extremely poor workability and a significant increase in cost. Furthermore, invention C is a method in which the needle is formed into a groove shape and the thread is adhered within the groove, but this groove structure has drawbacks such as the fact that it greatly damages tissue during suturing. Therefore, inventions A, B, and C are all unsatisfactory and have yet to be put into practical use. <Problems to be solved by the invention> The suture needle according to the invention relates to a completely new technology developed in view of these drawbacks of the conventional technology. The aim is to mass-produce threaded needles at low cost. <Means for solving the problem> The suture needle with thread according to the present invention is completely different from the above-mentioned technology, and can cut the thread that is integrally attached and fixed to the needle as necessary. The needle and thread can be separated extremely easily and reliably. One example of this will be explained in detail with the help of a diagram.
In FIG. 1, reference numeral 1 denotes a suture needle, and a suture thread 2 is integrally attached and fixed to the distal end of the needle by being crimped into the needle hole. Next, a notch 3 is made in a part of the thread 2 near the needle 1, and the strength of the thread 2 in this part is weakened within a certain range, and the thread 2 is pulled strongly as necessary. It is constructed so that it can be easily cut from this part. <Function> As described above, the suture needle with thread according to the present invention has a notch 3 in a part of the thread 2 near the needle 1, so when the thread 2 is cut off from the needle 1 after suturing, the thread 2 Alternatively, by pulling the needle 1 integrally fixed to the thread 2, the thread 2 is easily cut from the notch 3,
This allows the needle 1 and thread 2 to be easily separated. <Example> In the above example, the strength of a part of the thread 2 was weakened by providing a notch 3 in a part of the thread 2, but as shown in FIG. In the case of the thread 2 made of a material with weak properties, the part 4 near the needle 1 is heated at a constant temperature, or the part 4 is irradiated with a fixed amount of gamma rays in a linear manner. , it is also possible to configure this part 4 to be weaker than its surroundings. Further, instead of providing the notch 3 in the thread 2 as described above, it is also possible to provide a configuration in which a thin broken line in the form of a perforation or the like is provided in this portion. Various experiments were conducted to construct a part of the thread near the needle to be weaker than the attachment strength between the needle and the thread or the strength of the thread itself. Physicians gave favorable evaluations when the values were set as shown in the table below. Four types of nylon threads used in the experiment: 2-0, 3-0, 4-0, and 5-0 Example of weakening the strength of the thread itself

【表】 上述の表より使用する糸に対応して、糸自体の
強度を糸の引張強さ或いは糸と針との取付強さの
約3分の1から10分の1にした場合に良好な結果
が得られることが判明した。 <考案の効果> 本考案に係る縫合針は上述の構造及び作用を有
するので、従来の糸付縫合針の製造工程を全く変
更することなく、同一工程で製造された製品の糸
の一部に簡単な加工を施せば良いので作業が極め
て簡単で技術的にも容易であると共に確実であ
り、従つて安価に大量生産することが出来、更に
製品も均一なものが大量生産出来ると共に引張分
離力が安定している等の多大な特徴を有するもの
である。
[Table] According to the table above, it is good if the strength of the thread itself is about 1/3 to 1/10 of the tensile strength of the thread or the strength of the attachment between the thread and the needle, depending on the thread used. It was found that good results could be obtained. <Effects of the invention> Since the suture needle according to the invention has the above-mentioned structure and function, it can be used in some of the threads of products manufactured in the same process without changing the manufacturing process of conventional suture needles with thread. Since it only requires simple processing, the work is extremely simple, technically easy, and reliable. Therefore, it can be mass-produced at low cost, and the products can also be mass-produced with uniformity, and the tensile separation force is low. It has many characteristics such as being stable.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図及び第2図は夫々本願の糸付縫合針の一
例を示す説明図である。 1は針、2は糸、3は切欠、4は一部である。
FIG. 1 and FIG. 2 are explanatory diagrams each showing an example of a threaded suture needle of the present application. 1 is a needle, 2 is a thread, 3 is a notch, and 4 is a part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 糸を針の末端部に一体的に取り付けて構成した
糸付縫合針に於いて、前記糸の針の近くの一部を
針と糸との取付強度或いは糸自体の強度よりも弱
く構成したことを特徴とした糸付縫合針。
In a suture needle with a thread configured by integrally attaching a thread to the distal end of the needle, a part of the thread near the needle is configured to have a strength weaker than the attachment strength between the needle and the thread or the strength of the thread itself. A suture needle with a thread.
JP19225184U 1984-12-20 1984-12-20 Expired JPS632019Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19225184U JPS632019Y2 (en) 1984-12-20 1984-12-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19225184U JPS632019Y2 (en) 1984-12-20 1984-12-20

Publications (2)

Publication Number Publication Date
JPS61109505U JPS61109505U (en) 1986-07-11
JPS632019Y2 true JPS632019Y2 (en) 1988-01-19

Family

ID=30749674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19225184U Expired JPS632019Y2 (en) 1984-12-20 1984-12-20

Country Status (1)

Country Link
JP (1) JPS632019Y2 (en)

Also Published As

Publication number Publication date
JPS61109505U (en) 1986-07-11

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