著者
尾家 重治 河合 伸也
出版者
一般社団法人日本医療機器学会
雑誌
医療機器学 (ISSN:18824978)
巻号頁・発行日
vol.92, no.1, pp.14-18, 2022 (Released:2022-04-05)
参考文献数
16

The fabric structures of re-usable (cotton, polyurethane, polyester 95% with polyurethane 5%, polyester 95% with spandex 5%) face masks compared to disposable non-woven masks were observed under scanning electron microscopy. We found re-usable face masks in general have homogeneous pore sizes of approximately 0.1 - 0.5 mm. In comparison, non-woven masks have two fiber layers separated by one densely non-woven labyrinthine layer with disordered three dimensional microfibers. We found most (7 out of 8) non-woven masks shared this similar dense second layer composition. Our observation for masks under the electron microscopy provides structural evidence underlying infection-preventing superiority of non-woven over re-usable (cotton, polyurethane, polyester 95% with polyurethane 5%, polyester 95% with spandex 5%) face masks. Furthermore, we found that non-woven masks do not always have the disordered dense middle layer, which suggests that some products of non-woven masks may not provide equal protection for infection.
著者
尾家 重治 河合 伸也
出版者
一般社団法人 日本環境感染学会
雑誌
日本環境感染学会誌 (ISSN:1882532X)
巻号頁・発行日
vol.36, no.3, pp.157-160, 2021-05-25 (Released:2021-11-25)
参考文献数
4

“除菌”,“アルコール”,“99.9%”などの表示から殺微生物効果を連想させる市販製品(環境用または環境・手指用)の殺細菌効果について,Enterococcus faecalisを用いて調べた.28製品中13製品(46.4%)が5分間の接触で殺細菌効果を示さなかった.これら28製品のうちのエタノールを含有する14製品(実測値で7.9~65.7 vol%のエタノールを含有)では,14製品中1製品(7.1%)が殺細菌効果を示さなかった.また,塩素系薬剤を含有する10製品(実測値で0.06~144 ppmの遊離残留塩素を含有)では,すべての製品(100%)が殺細菌効果を示さなかった.殺微生物効果を連想させる市販製品の半数近くが殺細菌効果を示さなかった.
著者
安部 幸雄 土井 一輝 酒井 和裕 深堀 勝之 藤井 裕之 河村 洋行 河合 伸也
出版者
West-Japanese Society of Orthopedics & Traumatology
雑誌
整形外科と災害外科 (ISSN:00371033)
巻号頁・発行日
vol.43, no.3, pp.1020-1022, 1994-09-25 (Released:2010-02-25)
参考文献数
9

Peripheral nerve trunks are not rigidly fixed to surrounding tissues along their course. They slide longitudinally in their beds over several millimeters with movements of the extremity. This concept of peripheral nerve excurisions helps to explain the pathophysiological events occurring in entrapment neuropathy, chronic nerve irritation and nerve compression. Although this is an important physiological phenomenon, this has not been examined precisely.We examined excursion of the normal sciatic nerves of 10 adult rabbits. The following were investigated:1) Percentage elongation of the sciatic nerve under nomal lower limb motion.2) Excursion between epineurium and gliding floor.3) Excursion between the funiculus.4) Morphological changes of the sciatic nerves under nomal lower limb motion.5) Microanatomical features of the peripheral nerves adapting movements of the extremity.The results were as follows:1) Total percentage elongation of the sciatic nerve was 5.8% in 0° flexion of the knee and 90° flexion of the hip joint. But near the knee joint, the maximum percentage was 9.2%.2) Excursion was found between the epineurium and gliding floor, and between the funiculus.3) It was proven that in the funiculus the nerve fibres have an undulating spiral pattern, which is, after its discoverer, called Fontana's bands. When the nerve was stretched in the course of movement, the undulation straightened out until it disappeared. Microanatomical view represents the wave-like alignment of the nerve fibres.By these features, peripheral nerves can accommodate limb motion.
著者
戸野塚 久紘 菅谷 啓之 高橋 憲正 河合 伸昭 中島 亮 寺谷 威 真鍋 博規 安藤 晃 森石 丈二
出版者
日本肩関節学会
雑誌
肩関節 (ISSN:09104461)
巻号頁・発行日
vol.35, no.3, pp.877-881, 2011 (Released:2011-12-21)
参考文献数
13
被引用文献数
1

The purpose of this study is to determine a target ROM (T-ROM) at 3 months after arthroscopic rotator cuff repair, by which patients can expect eventual full recovery. Subjects consist of 209 shoulders in 202 patients, including 116 males and 86 females with an average age of 61.5 years old, who underwent primary arthroscopic rotator cuff repair and were followed-up for a minimum of 2 years. There were 30 partial-thickness tears, 120 small to medium and 57 large to massive full-thickness tears. Anterior elevation (AE), external rotation at side (ER), and internal rotation (IR) ROM at 3 month after surgery (ROM-3M) were measured, and divided into five groups according to the values. The final ROM at 24 months after surgery was compared with each ROM-3M of these subgroups in order to determine the T-ROM. Then, according to the T-ROM, patients were also divided into two groups: less than the T-ROM (AE-, ER-, and IR-); and more than the T-ROM (AE+, ER+, and IR+), and average ROM in each group were compared with each other. The final ROM of AE was significantly better in the group of more than 120° than less than 120 degrees. Therefore, the T-ROM of AE was determined as 120°. Similarly, those of ER and IR were determined as 10° and L5 level. ROM at 6 and 9 months in the AE+ group was significantly better than those of the AE- group. Further, every ROM at 3 to 24 months in the ER+ group was significantly better than those of the ER- group. In conclusion, ROM at 3 months after surgery affects final shoulder function. Surgeons and therapists should pay attention to the T-ROM at 3 months after surgery described above in order to maximize patients's final shoulder function.
著者
山川 百合子 井出 政行 武島 玲子 河合 伸念 片野 綱大 松坂 尚
出版者
茨城県立医療大学
雑誌
茨城県立医療大学紀要 (ISSN:13420038)
巻号頁・発行日
vol.13, pp.75-81, 2008-03

統合失調症の治療は、抗精神病薬による薬物療法が重要である。特に地域リハビリテーションでは薬物治療の維持の方策が重要である。今回、統合失調症の30歳女性がオランザピン口腔内崩壊錠の投与により長期の精神状態の安定化とともに就労が可能となった一例を報告した。これにより薬剤の形状の変化が社会復帰に貢献する可能性が示唆された。
著者
城戸 研二 河合 伸也 小田 裕胤 田口 敏彦 山縣 茂樹 秋野 龍明 村松 慶一
出版者
West-Japanese Society of Orthopedics & Traumatology
雑誌
整形外科と災害外科 (ISSN:00371033)
巻号頁・発行日
vol.37, no.2, pp.675-677, 1988-10-25 (Released:2010-02-25)
参考文献数
4

In thirty-six cases with lumlar diseases, CT studies of the shape of the lateral recess (L5) were performed. A series of CT scans at L5 lateral recess showed the narrowest level of it and the L5 neve root condition in it. Three types of the shape were classified, which were triangular type, trefoil type and flat trefoil type. Especially the flat trefoil type was associated with LCS. We concluded that the narrowest level of the lateral recess of LCS was the entrance of the nerve root, which was trapped there by the configuration of the recess with the degenerative soft tissue, on the other hand, the lateral recess of OA was not narrowest at the entrance level, but narrowest at the pedicle level. The difference in the shape contributed to the pathogenesis of symptoms of the LCS.
著者
木戸 健司 河合 伸也 小田 裕胤 石田 洋一郎 深堀 勝之 峯 孝友 日浦 泰博
出版者
West-Japanese Society of Orthopedics & Traumatology
雑誌
整形外科と災害外科 (ISSN:00371033)
巻号頁・発行日
vol.38, no.1, pp.386-388, 1989-10-25 (Released:2010-02-25)
参考文献数
2

The purpose of this paper is to report morphological features of the cells in the human posterior longitudinal ligament, including its attachment to the vertebral bodies, and of the cultured cells derived from PLL. We used the transmission electron microscopy to observe the cells. Far from its vertebral attachment, the main constituent cells in PLL are fibroblasts. The closer to the vertebral bodies fibroblasts become degenerative, and chondrocytes are observed in the irregular collagen fibers. The closer still more, calcium deposits on the collagen fibers, and osteocytes become the dominant cells. Compared with these three types of cells fibroblast, chondrocyte, and osteocyte in PLL, the cultured cells resemble fibroblasts.
著者
河合 伸
出版者
行動経済学会
雑誌
行動経済学 (ISSN:21853568)
巻号頁・発行日
vol.11, no.Special_issue, pp.S19-S21, 2018 (Released:2019-04-10)
参考文献数
8

本稿は,ゲーム理論の代表的ゲームである「囚人のジレンマ」について,人間の「利他性」を導入することにより,「非協力」かつ「有限回」のゲームであっても囚人のジレンマ状態が解消されるケースがあることを示すことを主眼としている.囚人のジレンマ状態となる主な条件は,(i)非協力ゲームであること,(ii)自分の利得のみに関心があること,(iii)有限回のゲームであることである.このなかで,(i)および(ii)の条件が成立していても,(iii)の条件が成立していない場合,すなわち,無限回繰り返しゲームによって,囚人のジレンマが解消されることが知られているが,ここでは,(i)と(iii)の条件が成立していても,(ii)の条件を緩和し,自身の行動が自分の利得のみならず,他人の利得に及ぼす影響にも関心がある場合,その関心がある程度高ければ,囚人のジレンマは解消され,「聖人の調和」が達成されることを示す.
著者
河合 伸也
出版者
医学書院
巻号頁・発行日
pp.1111-1113, 2002-09-25

I.はじめに 運動器(筋骨格系)の重要性がようやく脚光を浴びる時代になりました.20世紀は『がんの10年』や『脳の10年』でしたが,21世紀は『運動器の10年』から始まります.運動器の障害・外傷は個人的・社会的損失が大きいだけでなく,運動器が高いQOLを保持する役割を担っているという観点から運動器が見直されています.この観点において運動器に関連する専門職(殊に,整形外科医)の役割は大きいものがあります.
著者
今釜 哲男 服部 奨 小山 正信 河合 伸也 東 良輝 繁冨 頼雄 小田 裕胤 井之川 義典 多原 哲治
出版者
West-Japanese Society of Orthopedics & Traumatology
雑誌
整形外科と災害外科 (ISSN:00371033)
巻号頁・発行日
vol.27, no.4, pp.559-563, 1978-12-25 (Released:2010-02-25)
参考文献数
16
被引用文献数
1

Vascular tests for thoracic outlet syndrome are considered to be one of the important diagnostic aid in order to determine the localization and the severity of neurovascular lesion at the thoracic outlet region. However, the mechanism and significance of vascular tests are still unclear.This is to report our clinical and autopsial study to try to clarify the exact meanings of each vascular test.Materials are 72 cases in 48 patients with thoracic outlet syndrome (46 cases in 39 patients recieved first rib resection) and 21 cases of exploration in autopsy.Positive Adson's test, although the incidence is quite low, may suggest severe lesion at the scalen triangle. Eden's test indicate lesions at the costo-clavicular space. In this positive the clavicle moves most to the posteromedial direction among the various positions. Abduction-external rotation test and Wright's test show neurovascular compression mainly at the costo-clavicular region and partly at the scalen triangle. These positions make the neurovascular bundle tracted foward the lateral. Compression at the subcoracoideal region is not the main cause in Wright's test.
著者
河合 伸昭 菅谷 啓之 高橋 憲正 戸野塚 久紘 中島 亮 寺谷 威 真鍋 博規 安藤 晃 森石 丈二
出版者
日本肩関節学会
雑誌
肩関節 (ISSN:09104461)
巻号頁・発行日
vol.35, no.3, pp.903-906, 2011 (Released:2011-12-21)
参考文献数
14
被引用文献数
2

Primary frozen shoulder is believed to be a self-limited disease. However, many patients complain of prolonged symptoms such as night pain and refractory stiffness. The purpose of this study is to estimate the efficacy of steroid injection to the glenohumeral joint for primary stiff shoulder associated with night pain. Subjects consisted of 115 consecutive patients, including 37 males and 72 females with an average age of 59.4 years old, who were diagnosed as having primary frozen shoulder at the shoulder clinic in our institute from May to November, 2009. Our treatment principles are as follows: we recommend patients who complain of night pain to keep their arm at rest and carry out trunk and scapular exercises, in addition to steroid injection to the glenohumeral joint once a week until the night pain subsides. Then, physiotherapy is initiated of the hand of therapists. Range of motion at the first visit and at the time when the night pain disappeared was evaluated, as well as that at the final follow-up which was 5.8 months on average.The mean forward flexion, external and internal rotation significantly improved when the night pain disappeared, which was 4.8 weeks on average, from 97.5, 9.2°, and S level to 117.5, 17.4°, and L4 level. The range of motion at the final follow-up was 144 degrees in flexion, 31 in external rotation, and L2 level in internal rotation.Steroid injection to the glenohumeral joint was effective for pain relief for patients with primary frozen shoulder associated with night pain. Removing inflammation at the glenohumeral joint is a key factor when treating such patients and this also enables patients to proceed with effective physiotherapy.
著者
河合 伸
出版者
一般社団法人 日本呼吸ケア・リハビリテーション学会
雑誌
日本呼吸ケア・リハビリテーション学会誌 (ISSN:18817319)
巻号頁・発行日
vol.18, no.3, pp.209-212, 2008-12-29 (Released:2016-12-28)
参考文献数
6

高齢者肺炎の特徴は,慢性的な基礎疾患を有すことが多く,潜在的臓器機能低下が肺炎の難治化および重症化の重要な因子である.また,これら高齢者肺炎で重要な位置を占めているのが誤嚥性肺炎であり,その病因には神経疾患,寝たきり状態など多くの病態が関与している.誤嚥性肺炎の発生には,嫌気性菌を含む複数の菌によることが多く,病態が複雑であることが多いため,抗菌療法においてはこれら高齢者の病態を十分に考慮したうえで適正な抗菌療法を行わなければならない.
著者
金子 雄介 田村 浩気 河合 伸浩 田中 俊太郎 岡 知博
雑誌
デジタルプラクティス (ISSN:21884390)
巻号頁・発行日
vol.10, no.3, pp.492-505, 2019-07-15

貿易実務は,正本性の高い書類を多くの取引参加者が扱うため,高い改ざん耐性を持つシステムによる業務効率化が期待されているが,網羅的な解決には至っていない.筆者らは,ブロックチェーンを用い,銀行APIやIoTセンサなども活用した貿易取引ワークフローシステムを構築した.試用の結果,貿易手続きの所要時間が40分の1(現行手続きにおける書類運送時間を除いても4分の1)に短縮できることを確認した.併せて,商用化に向け解決すべき課題を整理した.