JP4388344B2 - 内視鏡用スネア - Google Patents
内視鏡用スネア Download PDFInfo
- Publication number
- JP4388344B2 JP4388344B2 JP2003368284A JP2003368284A JP4388344B2 JP 4388344 B2 JP4388344 B2 JP 4388344B2 JP 2003368284 A JP2003368284 A JP 2003368284A JP 2003368284 A JP2003368284 A JP 2003368284A JP 4388344 B2 JP4388344 B2 JP 4388344B2
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- JP
- Japan
- Prior art keywords
- snare
- snare loop
- distal end
- pair
- flexible sheath
- 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 - Lifetime
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- 230000008602 contraction Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 210000004400 mucous membrane Anatomy 0.000 description 3
- 238000002271 resection Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000002224 dissection Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Surgical Instruments (AREA)
- Endoscopes (AREA)
Description
図２は、本発明の参考例である内視鏡用スネアの全体構成を図示する平面図であり、内視鏡の処置具挿通チャンネルに挿脱される可撓性シース１は、例えば四フッ化エチレン樹脂チューブ等のような電気絶縁性の合成樹脂チューブによって形成されている。
２ 操作ワイヤ
３ 弾性ワイヤ
３ａ 先端部分
３ｂ 先端側曲げ部
３ｃ 最先端折り曲げ部
１０ スネアループ
Ｘ 膨縮面
Ｙ 膨縮面Ｘに対して直交する方向
Claims (2)
- 可撓性シース内に軸線方向に進退自在に操作ワイヤが挿通配置されて、一対の弾性ワイヤを先端と基端とで各々相互に固着して中間部分を曲げて形成されたスネアループが上記操作ワイヤの先端に連結され、上記操作ワイヤを軸線方向に進退操作することにより上記スネアループが上記可撓性シースの先端内に出入りして、上記スネアループが上記可撓性シース外では自己の弾性によって膨らみ、上記可撓性シース内に引き込まれることにより弾性変形して窄まるようにした内視鏡用スネアにおいて、
上記スネアループを構成する一対の弾性ワイヤが、先端側の固着部において上記スネアループの膨縮面に対して交差する方向に隣接する位置関係で相互に固着されると共に、上記一対の弾性ワイヤのうち一方の弾性ワイヤの最先端部分が、上記スネアループの膨縮面に対して交差する方向に折り曲げられていることを特徴とする内視鏡用スネア。 - 上記一対の弾性ワイヤが、先端側の固着部において上記スネアループの膨縮面に対して略直交する方向に隣接する位置関係で相互に固着されている請求項１記載の内視鏡用スネア。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003368284A JP4388344B2 (ja) | 2003-10-29 | 2003-10-29 | 内視鏡用スネア |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003368284A JP4388344B2 (ja) | 2003-10-29 | 2003-10-29 | 内視鏡用スネア |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005130965A JP2005130965A (ja) | 2005-05-26 |
| JP4388344B2 true JP4388344B2 (ja) | 2009-12-24 |
Family
ID=34645997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003368284A Expired - Lifetime JP4388344B2 (ja) | 2003-10-29 | 2003-10-29 | 内視鏡用スネア |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4388344B2 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5951345B2 (ja) * | 2012-05-01 | 2016-07-13 | Hoya株式会社 | 内視鏡用スネア |
| JP6236122B2 (ja) * | 2016-06-03 | 2017-11-22 | Hoya株式会社 | 内視鏡用スネア |
| CN109641120B (zh) | 2016-09-18 | 2021-08-17 | 圣犹达医疗用品心脏病学部门有限公司 | 具有耦合到预先形成的环形结构的激活系绳的环形导管 |
-
2003
- 2003-10-29 JP JP2003368284A patent/JP4388344B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005130965A (ja) | 2005-05-26 |
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