JPWO2016051918A1 - 外科手術用エネルギーデバイス - Google Patents
外科手術用エネルギーデバイス Download PDFInfo
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- JPWO2016051918A1 JPWO2016051918A1 JP2016551601A JP2016551601A JPWO2016051918A1 JP WO2016051918 A1 JPWO2016051918 A1 JP WO2016051918A1 JP 2016551601 A JP2016551601 A JP 2016551601A JP 2016551601 A JP2016551601 A JP 2016551601A JP WO2016051918 A1 JPWO2016051918 A1 JP WO2016051918A1
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- polysiloxane
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- 239000000463 material Substances 0.000 claims abstract description 46
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 40
- -1 polysiloxane Polymers 0.000 claims abstract description 36
- 150000001875 compounds Chemical class 0.000 claims abstract description 28
- 239000011247 coating layer Substances 0.000 claims abstract description 24
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims description 41
- 239000011248 coating agent Substances 0.000 claims description 40
- 230000003746 surface roughness Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 abstract description 14
- 239000000758 substrate Substances 0.000 abstract description 7
- 239000010408 film Substances 0.000 description 57
- 210000001519 tissue Anatomy 0.000 description 41
- 238000000034 method Methods 0.000 description 14
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 230000015271 coagulation Effects 0.000 description 8
- 238000005345 coagulation Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 230000023597 hemostasis Effects 0.000 description 6
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- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- 210000004185 liver Anatomy 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
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- 239000004642 Polyimide Substances 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920002313 fluoropolymer Polymers 0.000 description 3
- 239000004811 fluoropolymer Substances 0.000 description 3
- 238000005555 metalworking Methods 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
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- 210000004369 blood Anatomy 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
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- 210000005228 liver tissue Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
Description
図1(a)、(b)に示した外科手術用エネルギーデバイスとしての電気メス1の作動領域部3を模擬して、図2に示すコーティング層を有する試験片を作成した。図2に示す例において、まず、SUS304鋼からなる基材21の表面をブラスト処理することにより表面粗さRa:1μmの前処理部22を形成した。次に、100℃でのエチルシリケート(TEOS、たとえば高純度化学(株)製)により酸化ケイ素からなる基礎被膜23を形成した。次に、基礎被膜23上にディッピングによりフッ素化したポリシロキサンを含む混合物からなる最上部被膜24を形成した。上記工程により本発明例の試験片を作製した。また、比較例の試験片として、上記本発明例の試験片のうち、基礎被膜23および最上部被膜24を形成しない試験片、および、最上部被膜24を形成しない試験片を準備した。準備した本発明例および比較例の試験片におけるコーティング層の表面に対し、水の接触角および菜種油の接触角を求めた。接触角はJIS R 3257に準じた液適法により測定した。結果を以下の表1に示す。
本発明のコーティング層における基礎被膜について検討した。実施例1に従って、25mm(幅)×100mm(長さ)×1mm(厚さ)のSUS304鋼からなる基材の表面に前処理を施した後、酸化ケイ素からなる基礎被膜を被覆後、フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した本発明例の試験片、熱処理によって鉄酸化物からなる基礎被膜を形成後、フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した本発明例の試験片、および、直接フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した比較例の試験片を準備した。準備した本発明例および比較例の試験片に対し、ラビングテスト(ASTM D4752)による密着性の評価を行った。結果を表2に示す。
本発明のコーティング層における基礎被膜の膜厚の好適例について検討した。実施例1に従って、2.7mm(直径)×10mm(長さ)の棒状のSUS304鋼からなる基材の表面に前処理を施した後、酸化ケイ素からなる基礎被膜の膜厚を0.01μm〜15.0μmの範囲で変えて被覆した後、フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した試験片を準備した。準備した試験片のそれぞれを、豚の肝臓に差込み50Wで30秒マイクロ波を導通させた後、組織の凝固性および焦げ付きの程度を評価した。結果を表3に示す。
本発明の基材に対する前処理の好適例について検討した。2.7mm(直径)×10mm(長さ)の棒状のSUS304鋼からなる基材の表面に、電解研磨あるいはバフ研摩、球状または多角形のセラミックス砥粒を用いたブラスト処理、レーザ照射によって、任意の表面粗さRaを付与した後に、実施例1に従って、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した試験片を準備した。準備した試験片のそれぞれを、豚の肝臓に差込み50Wで30秒マイクロ波を導通させた後、焦げ付きの程度を評価した。結果を表4に示す。
本発明の基材の材質の好適例について検討した。以下の表5に示すように材質を変えた25mm(幅)×100mm(長さ)×1mm(厚さ)の基材に、実施例1に従って、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した試験片を準備した。準備した試験片のそれぞれを、ホットプレートで100℃に加熱した後、豚の肝臓片を試験片上に乗せ、焦げ付きの程度を評価した。結果を表5に示す。
本発明の作動領域部に供給するエネルギーの好適例について検討した。マイクロ波、高周波、超音波または電気エネルギーを用いる外科手術用エネルギーデバイスの作動領域部として、実施例1に従って、基材上に酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜からなるコーティング層を形成した後、豚の肝臓を切開および凝固し、焦げ付きの程度を評価した。結果を表6に示す。
外科手術に用いられる、メスや鑷子、鉗子およびスネアの作動領域部の基材に、実施例1に従って、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した後、各々の被膜の断面組織を観察した。結果を図3に示す。図3の結果から、外科手術用エネルギーデバイスの作動領域部の形状を問わず、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成することができることがわかる。
2 電気メス本体
3 作動領域部
11、21 基材
12、23 基礎被膜
13、24 最上部被膜
14 コーティング層
22 前処理部
Claims (5)
- エネルギーを生体対象部に伝達する作動領域部を持つ外科手術用エネルギーデバイスにおいて、作動領域部を構成する基材の外周面に形成したコーティング層が、基材上に形成された基礎被膜と基礎被膜上に形成された最上部被膜からなり、前記基礎被膜が酸化ケイ素あるいは酸化ケイ素を含む混合物であるとともに、前記最上部被膜がポリシロキサンあるいはポリシロキサンを含む化合物または一部をフッ素化したポリシロキサンを含む化合物であることを特徴とする外科手術用エネルギーデバイス。
- 前記基礎被膜が形成される前の表面粗さが、Ra値で3μm以下であることを特徴とする請求項1に記載の外科手術用エネルギーデバイス。
- 前記基礎被膜の膜厚が0.05〜10μmであることを特徴とする請求項1または2に記載の外科手術用エネルギーデバイス。
- 前記作動領域部から生体対象部に伝達されるエネルギーが、マイクロ波、高周波、または超音波であることを特徴とする請求項1〜3のいずれか1項に記載の外科手術用エネルギーデバイス。
- 前記外科手術用エネルギーデバイスが、メスや鑷子、鉗子またはスネアであることを特徴とする請求項1〜4のいずれか1項に記載の外科手術用エネルギーデバイス。
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PCT/JP2015/070066 WO2016051918A1 (ja) | 2014-09-30 | 2015-07-13 | 外科手術用エネルギーデバイス |
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US10709497B2 (en) * | 2017-09-22 | 2020-07-14 | Covidien Lp | Electrosurgical tissue sealing device with non-stick coating |
US11432869B2 (en) | 2017-09-22 | 2022-09-06 | Covidien Lp | Method for coating electrosurgical tissue sealing device with non-stick coating |
JP7240389B2 (ja) * | 2017-10-09 | 2023-03-15 | ストライカー・ユーロピアン・オペレーションズ・リミテッド | 電気手術ペンシル用電極及び電極を製造する方法 |
US20210307809A1 (en) * | 2018-08-03 | 2021-10-07 | Nihon Parkerizing Co., Ltd. | Surgical Electrode Having Surface Treatment Coating |
US20210161583A1 (en) * | 2018-08-30 | 2021-06-03 | Kyocera Corporation | Head for electrical scalpel |
WO2020183679A1 (ja) * | 2019-03-13 | 2020-09-17 | オリンパス株式会社 | 処置具 |
US11207124B2 (en) | 2019-07-08 | 2021-12-28 | Covidien Lp | Electrosurgical system for use with non-stick coated electrodes |
US11369427B2 (en) | 2019-12-17 | 2022-06-28 | Covidien Lp | System and method of manufacturing non-stick coated electrodes |
DE102020205483A1 (de) | 2020-04-30 | 2021-11-04 | Robert Bosch Gesellschaft mit beschränkter Haftung | Chirurgisches Instrument zum Durchtrennen von biologischem Gewebe |
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US8814861B2 (en) * | 2005-05-12 | 2014-08-26 | Innovatech, Llc | Electrosurgical electrode and method of manufacturing same |
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- 2015-07-13 EP EP15847084.9A patent/EP3202350B1/en active Active
- 2015-07-13 JP JP2016551601A patent/JP6299055B2/ja active Active
- 2015-07-13 US US15/512,647 patent/US20170290623A1/en not_active Abandoned
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JPH11508171A (ja) * | 1995-09-27 | 1999-07-21 | ヴァリーラブ・インコーポレーテッド | 被覆された電気外科手術用電極及び製造方法 |
US6409725B1 (en) * | 2000-02-01 | 2002-06-25 | Triad Surgical Technologies, Inc. | Electrosurgical knife |
US20080027428A1 (en) * | 2003-02-14 | 2008-01-31 | Palanker Daniel V | Electrosurgical system with uniformly enhanced electric field and minimal collateral damage |
JP2007510519A (ja) * | 2003-11-10 | 2007-04-26 | チーム メディカル エル.エル.シー. | 電気手術器具 |
EP2298198A1 (en) * | 2008-06-30 | 2011-03-23 | Mani, Inc. | Medical edged instrument and method of coating medical edged instrument |
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US20170290623A1 (en) | 2017-10-12 |
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EP3202350A4 (en) | 2017-10-11 |
JP6299055B2 (ja) | 2018-03-28 |
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