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Gel phantom study of a cryosurgical probe with a thermosiphon effect and liquid nitrogen-cooled aluminum thermal storage blocks
https://doi.org/10.18999/nagjms.77.3.399
https://doi.org/10.18999/nagjms.77.3.3991c1bfa75-857c-43fa-986a-76baf7f9a202
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
19_Isoda.pdf (513.3 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-09-07 | |||||
| タイトル | ||||||
| タイトル | Gel phantom study of a cryosurgical probe with a thermosiphon effect and liquid nitrogen-cooled aluminum thermal storage blocks | |||||
| 言語 | en | |||||
| 著者 |
Isoda, Haruo
× Isoda, Haruo× Takehara, Yasuo× Fujino, Hitoshi× Sone, Kazuya× Suzuki, Takeshi× Tsuzaki, Yoshinari× Miyazaki, Kouji× Fujie, Michio× Sakahara, Harumi× Maekawa, Yasuaki |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | cryoablation | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | cryosurgery | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | cryotherapy | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | thermosiphon | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | phantom study | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Cryosurgery is a minimally invasive treatment for certain types of cancers. Argon-based cryosurgical devices are available at present, however a large compressed gas cylinder with the pressure of 300 atmospheres is needed. To overcome these drawbacks, we developed a new cryosurgical probe measuring about 50 cm in length with separate lumens inside for liquid and gaseous ethylene to be used as a thermosiphon and liquid nitrogen-cooled aluminum thermal storage blocks. The probe needle was 8 cm in length and 3 mm in outer diameter. To investigate the freezing capabilities of our new cryosurgical system we inserted the needle 5cm into a poly-acrylamide gel phantom warmed to 36.5 °C. Thermal storage blocks made of aluminum, cooled at –196 °C in liquid nitrogen, were attached to the condenser of the probe and replaced with thermal storage blocks every 4 to 5 minutes to compensate for warming. We took digital camera images of the ice ball at the needle and measured the temperature in certain locations of the cryoprobe. Ice ball formation started at one minute after cooling. The sizes (longest diameter × minimum diameter) at 10, 20 and 30 minutes after the start of the procedure were 4.5×2.1, 4.5×3.1 and 4.6×3.7 cm, respectively. During the procedure the minimum temperature of the condenser was –85 °C and the needle was –65 °C. This newly developed compact cryosurgical probe with thermosiphon effect and cooled thermal storage blocks created an ice ball that can be used for cryosurgery within 20 minutes. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Nagoya University Graduate School of Medicine, School of Medicine | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| ID登録 | ||||||
| ID登録 | 10.18999/nagjms.77.3.399 | |||||
| ID登録タイプ | JaLC | |||||
| 関連情報 | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/773.html | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0027-7622 | |||||
| ISSN（Online） | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2186-3326 | |||||
| 書誌情報 |
en : Nagoya Journal of Medical Science 巻 77, 号 3, p. 399-407, 発行日 2015-08 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/22986 | |||||
| 識別子タイプ | HDL | |||||
