JP2019141500A - Tissue reinforcing material for automatic suturing device - Google Patents

Tissue reinforcing material for automatic suturing device Download PDF

Info

Publication number
JP2019141500A
JP2019141500A JP2018030799A JP2018030799A JP2019141500A JP 2019141500 A JP2019141500 A JP 2019141500A JP 2018030799 A JP2018030799 A JP 2018030799A JP 2018030799 A JP2018030799 A JP 2018030799A JP 2019141500 A JP2019141500 A JP 2019141500A
Authority
JP
Japan
Prior art keywords
tissue
nonwoven fabric
suturing device
reinforcing material
automatic suturing
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.)
Pending
Application number
JP2018030799A
Other languages
Japanese (ja)
Inventor
圭佑 三木
Keisuke Miki
圭佑 三木
智恵美 平岡
Chiemi Hiraoka
智恵美 平岡
麻衣 塚原
Mai Tsukahara
麻衣 塚原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gunze Ltd
Original Assignee
Gunze Ltd
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 by Gunze Ltd filed Critical Gunze Ltd
Priority to JP2018030799A priority Critical patent/JP2019141500A/en
Publication of JP2019141500A publication Critical patent/JP2019141500A/en
Pending legal-status Critical Current

Links

Images

Abstract

To provide a tissue reinforcing material for an automatic suturing device capable of reinforcing a tissue even in a case of an automatic suturing device in which both ends of a cartridge are closed.SOLUTION: The tissue reinforcing material 1 for an automatic suturing device has a shape of a bag partially or entirely formed of a bioabsorbable nonwoven fabric. Since the tissue reinforcing material 1 for an automatic suturing device has a bag shape, the material 1 follows the shape of the stomach and can be firmly adhered and fixed to the stomach.SELECTED DRAWING: Figure 1

Description

本発明は、カートリッジの両端が閉じた構造の自動縫合器であっても組織を補強できる自動縫合器用組織補強材に関する。 The present invention relates to a tissue reinforcing material for an automatic suturing device that can reinforce tissue even in an automatic suturing device having a structure in which both ends of a cartridge are closed.

従来、多数のステープルを埋入したホッチキスタイプの自動縫合器が組織の縫合に用いられている。しかし、肺等への適用においては縫合部からの空気漏れの問題があり、また、軟弱組織への適用においては組織の損傷、断裂等の問題が生じることがあった。 Conventionally, a stapler type automatic suturing device in which a large number of staples are embedded is used for tissue suturing. However, there is a problem of air leakage from the sutured part when applied to the lung or the like, and problems such as tissue damage or tearing may occur when applied to a soft tissue.

そこで、空気漏れや体液漏れ、組織の損傷を防ぐために生体吸収性の補強材が自動縫合器とともに用いられている(例えば、特許文献1、2)。特許文献1、2の補強材は、1枚の生体吸収性不織布の対向する2辺を縫い合わせる、又は2枚の生体吸収性不織布若しくは1枚の生体吸収性不織布と1枚の伸縮性編地を重ねて、対向する2辺を縫い合わせることによって筒状の構造としている。そして、筒の中に自動縫合器のカートリッジの端部を差し込むことで自動縫合器に装着され、組織と一緒に縫合されることで組織を補強する。また、補強材は生体吸収性不織布でできているため、補強が不要になった後は最終的に生体内に吸収される。 Therefore, bioabsorbable reinforcing materials are used together with an automatic suturing device in order to prevent air leakage, body fluid leakage, and tissue damage (for example, Patent Documents 1 and 2). The reinforcement material of patent documents 1 and 2 stitches together two opposite sides of one bioabsorbable nonwoven fabric, or two bioabsorbable nonwoven fabrics or one bioabsorbable nonwoven fabric and one stretchable knitted fabric. A cylindrical structure is formed by overlapping and sewing two opposing sides. Then, the end of the cartridge of the automatic suturing device is inserted into the cylinder to be attached to the automatic suturing device, and the tissue is reinforced by being sutured together with the tissue. Moreover, since the reinforcing material is made of a bioabsorbable non-woven fabric, the reinforcing material is finally absorbed into the living body after the reinforcement becomes unnecessary.

一方、肥満に対する治療として、胃の一部を切除する減量手術が行われている。減量手術では切除する範囲が大きく、一度に長距離を縫合しなければならないため自動縫合器もカートリッジの長いものが用いられている。このような長尺の自動縫合器の中にはカートリッジの両端が閉じた構造となっているものがあり、従来の筒状の補強材ではカートリッジに装着することができないという問題があった。また、カートリッジの両端が閉じた構造の自動縫合器に補強材を装着するためには、平面状の生体吸収性不織布を自動縫合器のカートリッジの間に通して巻き付け、縫い合わせる等して固定する必要があるが、手術現場で行うには非常に煩雑であるという問題もあった。 On the other hand, weight loss surgery for excising part of the stomach is performed as a treatment for obesity. In weight loss surgery, the excision range is large, and a long distance must be sewn at a time. Therefore, an automatic suturing device having a long cartridge is used. Some of the long automatic suturing devices have a structure in which both ends of the cartridge are closed, and there is a problem that the conventional cylindrical reinforcing material cannot be attached to the cartridge. In addition, in order to attach a reinforcing material to an automatic suturing device having a structure in which both ends of the cartridge are closed, it is necessary to wrap and sew a flat bioabsorbable nonwoven fabric between the cartridges of the automatic suturing device and to fix them. However, there is also a problem that it is very complicated to perform at the operation site.

特開平08−047526号公報JP 08-047526 A 特許第4675237号公報Japanese Patent No. 4675237

本発明は、上記問題に鑑み、カートリッジの両端が閉じた構造の自動縫合器であっても組織を補強できる自動縫合器用組織補強材を提供することを目的とする。 In view of the above problems, an object of the present invention is to provide a tissue reinforcing material for an automatic suturing device that can reinforce a tissue even in an automatic suturing device having a structure in which both ends of a cartridge are closed.

第1の本発明は、一部または全部が生体吸収性不織布からなり、袋状である自動縫合器用組織補強材である。 The first aspect of the present invention is a tissue reinforcing material for an automatic suturing device that is partly or entirely made of a bioabsorbable nonwoven fabric and has a bag shape.

第2の本発明は、帯状の生体吸収性不織布と前記帯状の生体吸収性不織布に通された糸を有する自動縫合器用組織補強材である。 The second aspect of the present invention is a tissue reinforcing material for an automatic suturing device having a strip-shaped bioabsorbable nonwoven fabric and a thread passed through the strip-shaped bioabsorbable nonwoven fabric.

第3の本発明は、生体吸収性不織布からなり、上記生体吸収性不織布の少なくとも一部に接着剤が塗布されている自動縫合器用組織補強材である。
まず、第1の本発明について詳説する。
The third aspect of the present invention is a tissue reinforcing material for an automatic suturing device comprising a bioabsorbable nonwoven fabric, wherein an adhesive is applied to at least a part of the bioabsorbable nonwoven fabric.
First, the first invention will be described in detail.

本発明者らは鋭意検討した結果、袋状の生体吸収性不織布を事前に組織に貼り付けておくことでカートリッジの両端が閉じた構造の自動縫合器であっても組織を補強できることを見出し、本発明を完成させるに至った。 As a result of intensive studies, the present inventors have found that tissue can be reinforced even with an automatic suturing device in which both ends of the cartridge are closed by pasting a bag-like bioabsorbable nonwoven fabric in advance to the tissue, The present invention has been completed.

第1の本発明の自動縫合器用組織補強材(以下、単に組織補強材ともいう)は、一部または全部が袋状の生体吸収性不織布からなる。
組織補強材が不織布であることで、組織からの空気漏れや体液漏れをより確実に防ぐことができる。また、組織補強材が生体吸収性であることで、組織の補強が不要になった後は生体内に吸収されるため安全性も高い。更に、組織補強材の形状が袋状であることで、組織の形状に追随し、ぴったりと密着、固定させることができるため、自動縫合器に取り付けることなく組織の補強を行うことができる。
The tissue reinforcing material for an automatic suturing device according to the first aspect of the present invention (hereinafter also simply referred to as tissue reinforcing material) is partially or entirely made of a bag-like bioabsorbable nonwoven fabric.
Since the tissue reinforcing material is a non-woven fabric, it is possible to more reliably prevent air leakage and body fluid leakage from the tissue. In addition, since the tissue reinforcing material is bioabsorbable, it is highly safe because it is absorbed into the living body after tissue reinforcement is no longer necessary. Furthermore, since the shape of the tissue reinforcing material is a bag shape, it can follow the shape of the tissue and can be closely adhered and fixed, so that the tissue can be reinforced without being attached to an automatic suturing device.

第1の本発明の自動縫合器用組織補強材において、生体吸収性不織布が自動縫合器用組織補強材の一部にのみ用いられる場合、その他の部分の素材は特に限定されないが、パワーネットであることが好ましい。パワーネットとは、ポリウレタン糸にナイロン糸がカバーリングされた糸を用いた生地であり、伸縮性が高いという特徴がある。第1の本発明にパワーネットを用いることで、組織補強材をより組織に密着、固定することができる In the tissue reinforcing material for an automatic suturing device of the first aspect of the present invention, when the bioabsorbable nonwoven fabric is used only for a part of the tissue reinforcing material for an automatic suturing device, the material of the other portions is not particularly limited, but is a power net Is preferred. A power net is a fabric using a yarn in which a nylon yarn is covered with a polyurethane yarn, and is characterized by high stretchability. By using the power net in the first aspect of the present invention, the tissue reinforcing material can be more closely attached and fixed to the tissue.

上記生体吸収性不織布の素材としては、例えば、ポリグリコリド、ポリラクチド(D、L、DL体)、グリコリド−ラクチド(D、L、DL体)共重合体、グリコリド−ε−カプロラクトン共重合体、ラクチド(D、L、DL体)−ε−カプロラクトン共重合体、ポリ(p−ジオキサノン)、グリコリド−ラクチド(D、L、DL体)−ε−カプロラクトン共重合体等のα−ヒドロキシ酸重合体高分子等の合成吸収性高分子や、コラーゲン、ゼラチン、キトサン、キチン等の天然吸収性高分子が挙げられる。これらは単独で用いられてもよく、2種以上が併用されてもよい。例えば、上記生体吸収性不織布の素材として上記合成吸収性高分子を用いる場合、天然吸収性高分子を併用してもよい。なかでも、高い強度を示すことから、グリコリド、ラクチド、ε−カプロラクトン、ジオキサノン及びトリメチレンカーボネートからなる群より選択される少なくとも1種のモノマーを重合してなるホモポリマー又はコポリマーであるα−ヒドロキシ酸重合体高分子が好適であり、適度な分解挙動を示すことから、グリコリドを含むモノマーを重合してなるホモポリマー又はコポリマーであるα−ヒドロキシ酸重合体高分子がより好適である。 Examples of the material of the bioabsorbable nonwoven fabric include polyglycolide, polylactide (D, L, DL), glycolide-lactide (D, L, DL) copolymer, glycolide-ε-caprolactone copolymer, and lactide. Α-hydroxy acid polymer polymer such as (D, L, DL) -ε-caprolactone copolymer, poly (p-dioxanone), glycolide-lactide (D, L, DL) -ε-caprolactone copolymer And natural absorbable polymers such as collagen, gelatin, chitosan and chitin. These may be used independently and 2 or more types may be used together. For example, when the synthetic absorbent polymer is used as a material for the bioabsorbable nonwoven fabric, a natural absorbent polymer may be used in combination. Among these, α-hydroxy acid, which is a homopolymer or copolymer obtained by polymerizing at least one monomer selected from the group consisting of glycolide, lactide, ε-caprolactone, dioxanone and trimethylene carbonate because it exhibits high strength. A polymer polymer is suitable, and since it exhibits an appropriate decomposition behavior, an α-hydroxy acid polymer polymer that is a homopolymer or copolymer obtained by polymerizing a monomer containing glycolide is more preferred.

上記生体吸収性不織布の素材としてポリグリコリド(グリコリドのホモポリマー又はコポリマー)を用いる場合、ポリグリコリドの重量平均分子量の好ましい下限は30000、好ましい上限は1000000である。上記ポリグリコリドの重量平均分子量が30000未満であると、強度が不足して充分な組織補強効果が得られないことがあり、1000000を超えると、体内分解速度が遅くなり、異物反応を起こすことがある。上記ポリグリコリドの重量平均分子量のより好ましい下限は50000、より好ましい上限は300000である。 When polyglycolide (a homopolymer or copolymer of glycolide) is used as the material for the bioabsorbable nonwoven fabric, the preferred lower limit of the weight average molecular weight of the polyglycolide is 30000, and the preferred upper limit is 1000000. If the weight average molecular weight of the polyglycolide is less than 30000, the strength may be insufficient and a sufficient tissue reinforcing effect may not be obtained. is there. The minimum with a more preferable weight average molecular weight of the said polyglycolide is 50000, and a more preferable upper limit is 300000.

上記生体吸収性不織布の目付は特に限定されないが、好ましい下限は5g/m、好ましい上限は300g/mである。上記不織布の目付が5g/m未満であると、生体組織補強材としての強度が不足し、脆弱した組織を補強できないことがあり、300g/mを超えると、組織への接着性が悪くなることがある。上記生体吸収性不織布の目付のより好ましい下限は10g/m、より好ましい上限は100g/mである。 Although the fabric weight of the said bioabsorbable nonwoven fabric is not specifically limited, A preferable minimum is 5 g / m < 2 > and a preferable upper limit is 300 g / m < 2 >. If the basis weight of the nonwoven fabric is less than 5 g / m 2 , the strength as a biological tissue reinforcing material may be insufficient, and a weak tissue may not be reinforced. If it exceeds 300 g / m 2 , the adhesiveness to the tissue is poor. May be. The more preferable lower limit of the basis weight of the bioabsorbable nonwoven fabric is 10 g / m 2 , and the more preferable upper limit is 100 g / m 2 .

上記生体吸収性不織布を製造する方法は特に限定されず、例えば、エレクトロスピニングデポジション法、メルトブロー法、ニードルパンチ法、スパンボンド法、フラッシュ紡糸法、水流交絡法、エアレイド法、サーマルボンド法、レジンボンド法、湿式法等の従来公知の方法を用いることができる。 The method for producing the bioabsorbable nonwoven fabric is not particularly limited. For example, the electrospinning deposition method, the melt blow method, the needle punch method, the spun bond method, the flash spinning method, the hydroentanglement method, the air laid method, the thermal bond method, the resin Conventionally known methods such as a bond method and a wet method can be used.

上記生体吸収性不織布の面密度は特に限定されないが、好ましい下限が5g/m、好ましい上限が100g/mである。生体吸収性不織布の面密度が上記範囲であることで組織をより確実に補強できる強度とすることができる。上記生体吸収性不織布の面密度のより好ましい下限は50g/m、より好ましい上限は100g/mである。 Although the surface density of the said bioabsorbable nonwoven fabric is not specifically limited, A preferable minimum is 5 g / m < 2 > and a preferable upper limit is 100 g / m < 2 >. It can be set as the intensity | strength which can reinforce a structure | tissue more reliably because the surface density of a bioabsorbable nonwoven fabric is the said range. The more preferable lower limit of the surface density of the bioabsorbable nonwoven fabric is 50 g / m 2 , and the more preferable upper limit is 100 g / m 2 .

第2の本発明は、帯状の生体吸収性不織布と前記帯状の生体吸収性不織布に通された糸を有する自動縫合器用組織補強材である。
以下、第2の本発明について詳述する。
The second aspect of the present invention is a tissue reinforcing material for an automatic suturing device having a strip-shaped bioabsorbable nonwoven fabric and a thread passed through the strip-shaped bioabsorbable nonwoven fabric.
Hereinafter, the second aspect of the present invention will be described in detail.

本発明者らは鋭意検討した結果、帯状の生体吸収性不織布に糸を通した組織補強材を用い、糸を使って組織に巻き付けることで、両端が閉じた構造の自動縫合器であっても組織を補強できることを見出し、本発明を完成させるに至った。 As a result of intensive studies, the present inventors have used a tissue reinforcing material in which a thread is passed through a strip-shaped bioabsorbable nonwoven fabric, and wound the tissue around the tissue using the thread, so that even an automatic suturing device having a structure in which both ends are closed The present inventors have found that the tissue can be reinforced and have completed the present invention.

第2の本発明の自動縫合器用組織補強材は、帯状の生体吸収性不織布と上記帯状の生体吸収性不織布に通された糸を有する。
組織を補強する帯状の生体吸収性不織布に糸を通し、糸を操作することで、組織に生体吸収性不織布を巻き付けて固定することができるため、両端が閉じた構造の自動縫合器であっても組織を補強することができる。上記帯状の生体吸収性不織布としては第1の本発明と同様の生体吸収性不織布を用いることができる。
The tissue reinforcing material for an automatic suturing device of the second aspect of the present invention has a strip-shaped bioabsorbable nonwoven fabric and a thread passed through the strip-shaped bioabsorbable nonwoven fabric.
An automatic suturing device with a closed structure is possible because the bioabsorbable nonwoven fabric can be wound and fixed around the tissue by passing the thread through a band-shaped bioabsorbable nonwoven fabric that reinforces the tissue and manipulating the thread. Can also reinforce the tissue. As the strip-shaped bioabsorbable nonwoven fabric, the same bioabsorbable nonwoven fabric as that of the first invention can be used.

上記生体吸収性不織布は少なくとも一部が粘着性であることが好ましい。
帯状の生体吸収性不織布を粘着性とすることで、得られる組織補強材を組織により確実に密着、固定させることができる。また、生体吸収性不織布が粘着性であると、組織に事前に貼り付ける使い方だけでなく、自動縫合器のカートリッジに貼り付けて使うこともできる。なお、上記生体吸収性不織布は、少なくとも一部が粘着性であればよく、上記生体吸収性不織布を粘着性の生体吸収性不織布のみで構成してもよく、一部だけ粘着性の生体吸収性不織布を用いてもよく、上記生体吸収性不織布の一部または全部に粘着性コーティングを施してもよく、上記生体吸収性不織布と粘着剤シートを複合させてもよい。
The bioabsorbable nonwoven fabric is preferably at least partially tacky.
By making the strip-shaped bioabsorbable nonwoven fabric tacky, the resulting tissue reinforcing material can be reliably adhered and fixed to the tissue. If the bioabsorbable nonwoven fabric is sticky, it can be used not only for pre-adhering to the tissue but also for attaching to a cartridge of an automatic suturing device. In addition, the said bioabsorbable nonwoven fabric should just be at least partially adhesive, and the said bioabsorbable nonwoven fabric may be comprised only with an adhesive bioabsorbable nonwoven fabric, and only one part is adhesive bioabsorbable. A nonwoven fabric may be used, an adhesive coating may be applied to a part or all of the bioabsorbable nonwoven fabric, and the bioabsorbable nonwoven fabric and an adhesive sheet may be combined.

上記粘着性の生体吸収性不織布、粘着性コーティングまたは粘着剤シートの材料としては、例えば、メチルセルロース、ヒドロキシプロピルメチルセルロース、ヒドロキシエチルセルロース、ヒドロキシエチルメチルセルロース、カルボキシメチルセルロース等が挙げられる。 Examples of the material for the above-mentioned adhesive bioabsorbable nonwoven fabric, adhesive coating or adhesive sheet include methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose and the like.

上記糸は、上記生体吸収性不織布の中央に1本だけ通されていてもよく、上記生体吸収性不織布の両端に1本ずつ通されていてもよい。
本発明の自動縫合器用組織補強材は、上記糸を通す本数や位置によらず帯状の生体吸収性不織布を組織に固定できるが、上記糸を上記生体吸収性不織布の両端に1本ずつ通すことで、帯状の生体吸収性不織布の端部をめくりあがりにくくすることができるため、固定をより容易にできる。
Only one thread may be passed through the center of the bioabsorbable nonwoven fabric, or one thread may be passed through both ends of the bioabsorbable nonwoven fabric.
The tissue reinforcing material for an automatic suturing device of the present invention can fix a band-shaped bioabsorbable nonwoven fabric to a tissue regardless of the number and position of the thread, but the thread is passed through both ends of the bioabsorbable nonwoven fabric one by one. Thus, the end of the strip-shaped bioabsorbable nonwoven fabric can be made difficult to turn up, so that fixing can be made easier.

上記糸の種類は特に限定されないが、取り扱い性の観点からモノフィラメントが好ましい。上記糸の太さは特に限定されないが、作業性の観点からモノフィラメントのハリのある太糸であることが好ましい。具体的には、0.001mm以上0.599mm以下の太さの糸であることが好ましい。 The type of the yarn is not particularly limited, but monofilament is preferable from the viewpoint of handleability. Although the thickness of the said thread | yarn is not specifically limited, From a viewpoint of workability | operativity, it is preferable that it is a thick thread with a monofilament tension. Specifically, a thread having a thickness of 0.001 mm to 0.599 mm is preferable.

第3の本発明は、生体吸収性不織布からなり、上記生体吸収性不織布の少なくとも一部に接着剤が塗布されている自動縫合器用組織補強材である。
以下、第3の本発明について詳述する。
The third aspect of the present invention is a tissue reinforcing material for an automatic suturing device comprising a bioabsorbable nonwoven fabric, wherein an adhesive is applied to at least a part of the bioabsorbable nonwoven fabric.
Hereinafter, the third aspect of the present invention will be described in detail.

本発明者らは、鋭意検討した結果、組織を補強する生体吸収性不織布に医療用の接着剤を塗布することで、生体吸収性不織布を組織に密着、固定でき、両端が閉じた構造の自動縫合器であっても組織を補強できることを見出し、本発明を完成させるに至った。 As a result of intensive studies, the present inventors have applied a medical adhesive to a bioabsorbable nonwoven fabric that reinforces the tissue, whereby the bioabsorbable nonwoven fabric can be adhered and fixed to the tissue, and the structure is automatically closed. It has been found that even a suture instrument can reinforce tissue, and the present invention has been completed.

第3の本発明の自動縫合器用組織補強材は、生体吸収性不織布からなる。
上記生体吸収性不織布としては、第1の本発明と同様のものを用いることができる。
The tissue reinforcing material for an automatic suturing device of the third aspect of the present invention is made of a bioabsorbable nonwoven fabric.
As said bioabsorbable nonwoven fabric, the thing similar to 1st this invention can be used.

第3の本発明の自動縫合器用組織補強材は、上記生体吸収性不織布の少なくとも一部に接着剤が塗布されている。
上記生体吸収性不織布の一部に医療用の接着剤が塗布されていることで、得られる組織補強材を組織に密着、固定させることができる。また、接着剤を塗布することで、組織に事前に貼り付ける使い方だけでなく、自動縫合器のカートリッジに貼り付けて使うこともできる。上記接着剤としては、医療用に用いられる接着剤であれば特に限定されず、例えば、シアノアクリレート系接着剤、ゼラチン−アルデヒド系接着剤、フィブリン系接着剤等が挙げられる。なお、上記接着剤は、少なくとも上記生体吸収性不織布の組織と接する面の一部に塗布されていればよく、生体吸収性不織布の全面に塗布されていてもいなくてもよい。
In the tissue reinforcing material for an automatic suturing device of the third aspect of the present invention, an adhesive is applied to at least a part of the bioabsorbable nonwoven fabric.
By applying a medical adhesive to a part of the bioabsorbable nonwoven fabric, the obtained tissue reinforcing material can be adhered and fixed to the tissue. In addition, by applying an adhesive, it can be used not only for attaching to a tissue in advance but also for attaching to a cartridge of an automatic suturing device. The adhesive is not particularly limited as long as it is an adhesive used for medical purposes, and examples thereof include a cyanoacrylate adhesive, a gelatin-aldehyde adhesive, and a fibrin adhesive. In addition, the said adhesive agent should just be apply | coated to at least one part of the surface which contact | connects the structure | tissue of the said bioabsorbable nonwoven fabric, and does not need to be apply | coated to the whole surface of a bioabsorbable nonwoven fabric.

本発明によれば、カートリッジの両端が閉じた構造の自動縫合器であっても組織を補強できる自動縫合器用組織補強材を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, even if it is an automatic suturing device of the structure where the both ends of the cartridge were closed, the tissue reinforcing material for automatic suturing devices that can reinforce the tissue can be provided.

第1の本発明の自動縫合器用組織補強材の態様の一例を模式的に表した図である。It is the figure which represented typically an example of the aspect of the tissue reinforcing material for automatic suture devices of 1st this invention. 第2の本発明の自動縫合器用組織補強材の態様の一例を模式的に表した図である。It is the figure which represented typically an example of the aspect of the tissue reinforcing material for automatic suture devices of 2nd this invention.

以下に図を用いて本発明の態様を更に詳しく説明するが、本発明はこれらの態様にのみ限定されるものではない。 Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. However, the present invention is not limited to these embodiments.

図1では、胃に用いる場合の第1の本発明の自動縫合器用組織補強材を模式的に示している。図1に示すように、第1の本発明の自動縫合器用組織補強材1は、一部または全部が生体吸収性不織布からなる袋状の形状をしている。自動縫合器用組織補強材1が袋状の形状をしていることで、胃の形状に追随するため自動縫合器用組織補強材1をしっかりと胃に密着、固定できる。その結果、両端が閉じた構造の自動縫合器2を用いる場合であっても確実に組織の補強を行うことができる。第1の本発明の一部が生体吸収性不織布である場合は、その他の部分が伸縮性を有するパワーネットで構成されているとより確実に自動縫合器用組織補強材を組織に固定できる。自動縫合器用組織補強材1を組織に固定した後は、カートリッジの両端が閉じた構造の自動縫合器2のカートリッジの間に、組織及び自動縫合器用組織補強材1を通し、挟み込むことで組織を補強しながらの縫合及び切除が行われる。 FIG. 1 schematically shows a tissue reinforcing material for an automatic suturing device according to the first aspect of the present invention when used for the stomach. As shown in FIG. 1, the tissue reinforcing material 1 for an automatic suturing device according to the first aspect of the present invention has a bag-like shape partially or entirely made of a bioabsorbable nonwoven fabric. Since the tissue reinforcing material 1 for an automatic suturing device has a bag shape, the tissue reinforcing material 1 for an automatic suturing device can be firmly attached to and fixed to the stomach to follow the shape of the stomach. As a result, even when the automatic suturing device 2 having a structure in which both ends are closed is used, the tissue can be reliably reinforced. When a part of 1st this invention is a bioabsorbable nonwoven fabric, when the other part is comprised with the power net which has a stretching property, the tissue reinforcing material for automatic suture devices can be fixed to a tissue more reliably. After fixing the tissue reinforcing material 1 for an automatic suturing device to the tissue, the tissue and the tissue reinforcing material 1 for the automatic suturing device 1 are passed between the cartridges of the automatic suturing device 2 having a structure in which both ends of the cartridge are closed, and the tissue is sandwiched between them. Stitching and excision are performed while reinforcing.

図2は、第2の本発明の態様の一例を示している。図2(a)、(b)上図に示すように、第2の本発明は帯状の生体吸収性不織布3と、上記生体吸収性不織布を通る糸4を有している。上記糸4を操作することで、図2(a)、(b)下図のように帯状の生体吸収性不織布3を組織に巻き付け、巻き付けた後に結び目を作って絞ることで帯状の生体吸収性不織布3を組織に固定する。帯状の生体吸収性不織布3の固定後は、第1の本発明と同様に組織及び自動縫合器用組織補強材を挟み込むように自動縫合器用組織補強材をセットし、組織を補強しながらの縫合及び切除が行われる。縫合及び切除後、不要になった糸4は引っ張ることで回収される。 FIG. 2 shows an example of the second aspect of the present invention. 2 (a) and 2 (b), the second aspect of the present invention has a strip-like bioabsorbable nonwoven fabric 3 and a thread 4 passing through the bioabsorbable nonwoven fabric. By manipulating the thread 4, the strip-shaped bioabsorbable nonwoven fabric 3 is wound around the tissue as shown in FIGS. 2 (a) and 2 (b) below, wound and then squeezed to form a knot. 3 is fixed to the tissue. After the band-shaped bioabsorbable nonwoven fabric 3 is fixed, the tissue reinforcing material for the automatic suturing device is set so as to sandwich the tissue and the tissue reinforcing material for the automatic suturing device in the same manner as in the first invention, Ablation is performed. After sewing and excision, the thread 4 that is no longer needed is collected by pulling.

第2の本発明の自動縫合器用組織補強材は、図2(a)のように1本の糸4を帯状の生体吸収性不織布3に通していてもよく、図2(b)のように2本の糸4を帯状の生体吸収性不織布3の両端に通していてもよい。帯状の生体吸収性不織布3の両端に糸4を通すと、帯状の生体吸収性不織布3の両端がめくりあがりにくくなり、帯状の生体吸収性不織布3をより組織に密着させやすくなる。また、帯状の生体吸収性不織布3の少なくとも一部が粘着性であると、更に帯状の生体吸収性不織布3を組織に密着させやすくなる。 The tissue reinforcing material for an automatic suturing device of the second aspect of the present invention may have one thread 4 passed through the strip-shaped bioabsorbable nonwoven fabric 3 as shown in FIG. 2 (a), as shown in FIG. 2 (b). Two yarns 4 may be passed through both ends of the strip-shaped bioabsorbable nonwoven fabric 3. When the thread 4 is passed through the both ends of the strip-shaped bioabsorbable nonwoven fabric 3, both ends of the strip-shaped bioabsorbable nonwoven fabric 3 are hardly turned up, and the strip-shaped bioabsorbable nonwoven fabric 3 is more easily adhered to the tissue. In addition, when at least a part of the strip-shaped bioabsorbable nonwoven fabric 3 is adhesive, the strip-shaped bioabsorbable nonwoven fabric 3 is more easily adhered to the tissue.

本発明によれば、カートリッジの両端が閉じた構造の自動縫合器であっても組織を補強できる自動縫合器用組織補強材を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, even if it is an automatic suturing device of the structure where the both ends of the cartridge were closed, the tissue reinforcing material for automatic suturing devices that can reinforce the tissue can be provided.

1 自動縫合器用組織補強材
2 自動縫合器
3 帯状の生体吸収性不織布
4 糸
1 Tissue reinforcing material for automatic suturing device 2 Automatic suturing device 3 Band-shaped bioabsorbable nonwoven fabric 4 Thread

Claims (4)

一部または全部が生体吸収性不織布からなり、袋状であることを特徴とする自動縫合器用組織補強材。 A tissue reinforcing material for an automatic suturing device, wherein a part or the whole is made of a bioabsorbable nonwoven fabric and has a bag shape. 帯状の生体吸収性不織布と前記帯状の生体吸収性不織布に通された糸を有することを特徴とする自動縫合器用組織補強材。 A tissue reinforcing material for an automatic suturing device comprising a strip-shaped bioabsorbable nonwoven fabric and a thread passed through the strip-shaped bioabsorbable nonwoven fabric. 帯状の生体吸収性不織布の少なくとも一部が粘着性であることを特徴とする請求項2記載の自動縫合器用組織補強材。 The tissue reinforcing material for an automatic suturing device according to claim 2, wherein at least a part of the band-shaped bioabsorbable nonwoven fabric is adhesive. 生体吸収性不織布からなり、上記生体吸収性不織布の少なくとも一部に接着剤が塗布されていることを特徴とする自動縫合器用組織補強材。 A tissue reinforcing material for an automatic suturing device, comprising a bioabsorbable nonwoven fabric, wherein an adhesive is applied to at least a part of the bioabsorbable nonwoven fabric.
JP2018030799A 2018-02-23 2018-02-23 Tissue reinforcing material for automatic suturing device Pending JP2019141500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018030799A JP2019141500A (en) 2018-02-23 2018-02-23 Tissue reinforcing material for automatic suturing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018030799A JP2019141500A (en) 2018-02-23 2018-02-23 Tissue reinforcing material for automatic suturing device

Publications (1)

Publication Number Publication Date
JP2019141500A true JP2019141500A (en) 2019-08-29

Family

ID=67771466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018030799A Pending JP2019141500A (en) 2018-02-23 2018-02-23 Tissue reinforcing material for automatic suturing device

Country Status (1)

Country Link
JP (1) JP2019141500A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4122506A4 (en) * 2020-03-19 2024-03-13 Gunze Kk Structure reinforcing material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4122506A4 (en) * 2020-03-19 2024-03-13 Gunze Kk Structure reinforcing material

Similar Documents

Publication Publication Date Title
KR101136114B1 (en) Suture prosthetic material for automatic sewing device
US5814057A (en) Supporting element for staple region
RU2484779C2 (en) Surgical suture material, consisting of woven threads
JP5553961B2 (en) Knotless wound closure device
CA2598268C (en) Synthetic structure for soft tissue repair
EP2254482B1 (en) Vascular closure device
JP2008517674A5 (en)
WO2004054635A1 (en) Medical film
JP5721379B2 (en) Suture reinforcement material for automatic suturing device containing hydrophilic polymer
JP2014529309A (en) Artery for umbilical hernia
KR101621759B1 (en) Bending-type barbed suture
JP2009533568A (en) Absorbent reinforced multilayer fabric for use in medical devices and method of manufacture
JP2019141500A (en) Tissue reinforcing material for automatic suturing device
JP2009261934A (en) Apparatus for joining of tissue having integral penetrating end
JP5616196B2 (en) Medical prosthesis
JP2018202003A (en) Anastomotic prosthesis material
JP7057693B2 (en) Suture prosthesis for automatic sutures
JP4157997B2 (en) Suture prosthesis
JP2020005983A (en) Suture prosthetic material for automatic suture device
CN107595345B (en) Anastomotic stoma reinforcing repair piece
CN111297512A (en) Absorbable tissue repair mesh and preparation method thereof
JP2019141499A (en) Tissue reinforcing material for automatic suturing device
JP7329384B2 (en) tissue regeneration substrate
WO2022154092A1 (en) Tissue reinforcement material loader and tissue reinforcement material loading kit
JP2019193704A (en) Fixing tool for automatic suturing instrument, automatic suturing instrument and tissue suturing set