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Title:
BONE CEMENT INJECTION PUNCTURE NEEDLE
Document Type and Number:
WIPO Patent Application WO/2011/111652
Kind Code:
A1
Abstract:
In an outer needle base (14) of a bone cement injection puncture needle (10) are provided an injection port (30) for supplying bone cement to an outer needle (12), and a suction port (34) for suctioning by use of a suction device. Near the base end of the outer needle (12) is provided a side hole (22), and further, in the suction port (34) is provided a multi-way stopcock (70) as a device for maintaining reduced pressure. The bone cement injection puncture needle (10) punctures a target bone, and after an inner needle (16) is removed from the outer needle (12), the suction device is connected to the suction port (34) and gas and liquid inside the bone is suctioned, creating a negative pressure in the bone. By this means, when the bone cement is injected into the bone, said bone cement can be prevented from leaking to outside of the bone. Further, by means of putting the multi-way stopcock (70) in a closed state after suctioning, the negative pressure in the bone can be maintained.

Inventors:
TAKIZAWA Kenji (2-16-1 Sugao, Miyamae-ku, Kawasaki-sh, Kanagawa 11, 〒2168511, JP)
滝澤謙治 (〒11 神奈川県川崎市宮前区菅生2-16-1 学校法人 聖マリアンナ医科大学内 Kanagawa, 〒2168511, JP)
HAYAKAWA Koichi (1500 Inokuchi, Nakai-machi, Ashigarakami-gu, Kanagawa 51, 〒2590151, JP)
早川浩一 (〒51 神奈川県足柄上郡中井町井ノ口1500番地 テルモ株式会社内 Kanagawa, 〒2590151, JP)
Application Number:
JP2011/055220
Publication Date:
September 15, 2011
Filing Date:
March 07, 2011
Export Citation:
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Assignee:
St. Marianna University School of Medicine (2-16-1, Sugao Miyamae-ku, Kawasaki-sh, Kanagawa 11, 〒2168511, JP)
学校法人 聖マリアンナ医科大学 (〒11 神奈川県川崎市宮前区菅生2-16-1 Kanagawa, 〒2168511, JP)
TERUMO KABUSHIKI KAISHA (44-1, Hatagaya 2-chome Shibuya-k, Tokyo 72, 〒1510072, JP)
テルモ株式会社 (〒72 東京都渋谷区幡ヶ谷2丁目44番1号 Tokyo, 〒1510072, JP)
TAKIZAWA Kenji (2-16-1 Sugao, Miyamae-ku, Kawasaki-sh, Kanagawa 11, 〒2168511, JP)
滝澤謙治 (〒11 神奈川県川崎市宮前区菅生2-16-1 学校法人 聖マリアンナ医科大学内 Kanagawa, 〒2168511, JP)
International Classes:
A61B17/56
Foreign References:
JP2008259810A
JP2004513741A
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (Shinjuku Maynds Tower 16F, 1-1 Yoyogi 2-chome, Shibuya-k, Tokyo 53, 〒1510053, JP)
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Claims: