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Medical double needle, bone puncturing needle and bone marrow collecting device

A collection device and puncture needle technology, applied in the field of bone puncture needles, bone marrow collection equipment, and double needles, can solve the problems of chip detachment and the like, and achieve the effects of easy alignment, easy puncture operation, and easy puncture operation.

Inactive Publication Date: 2008-06-25
HI-LEX CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in Patent Document 4, it is easy to escape the cutting chips to the rear because the front end of the drill is thick.

Method used

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  • Medical double needle, bone puncturing needle and bone marrow collecting device
  • Medical double needle, bone puncturing needle and bone marrow collecting device
  • Medical double needle, bone puncturing needle and bone marrow collecting device

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0085] Next, embodiments of the medical double needle of the present invention will be described with reference to the drawings. Fig. 1 is a side view showing one embodiment of the double needle of the present invention, Fig. 2 is an exploded perspective view of the above double needle, and Fig. 3a and Fig. 3b are a side view and a plan view showing another embodiment of the double needle of the present invention, respectively. , Fig. 3c and Fig. 3d are respectively the side view and the top view showing another embodiment of the double needle of the present invention, Fig. 4a and Fig. 4b are respectively the top view and the side view showing the inner needle related to the present invention, Fig. 5a and Fig. 5b Fig. 6a and Fig. 6b are respectively a plan view and a partially cutaway side view showing still another embodiment of the double needle of the present invention. Views, Figure 6c shows the rear view of the rear end side of the outer needle of the double needle, Figur...

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PUM

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Abstract

The present invention provides a double needle that can easily puncture into cortical bone, etc., facilitate the alignment of the inner needle and the outer needle in the angular direction, and can transmit the torque when the inner needle and the outer needle are rotated simultaneously. This medical double needle (10) consists of a cylindrical outer needle (11) with a blade tip (26) at the front end and a solid inner needle (12) that is detachably accommodated inside the outer needle. When the needle (11) rotates around its long axis, the rotation diameter of the blade tip portion (26) is larger than the rotation diameter of the body portion, and there is a co-rotation mechanism (20) of the outer needle (11) and the inner needle (12) .

Description

technical field [0001] The present invention relates to a double needle for medical treatment such as bone marrow puncture, a bone puncture needle and a bone marrow collection device. Background technique [0002] Patent Document 1: Japanese Patent Laid-Open No. 2003-24339 [0003] Patent Document 2: Japanese Publication No. 6-21448 [0004] Patent Document 3: Japanese Patent Laid-Open No. 2003-116862 [0005] Patent Document 4: Japanese Patent Laid-Open No. 2002-28809 [0006] Patent Document 5: Japanese Patent Laid-Open No. 2004-154296 [0007] Patent Document 6: Japanese Patent No. 3311920 [0008] Patent Document 7: Japanese Patent Laid-Open No. 2004-290542 [0009] When collecting bone marrow, a needle is punctured on the hard cortical bone, and a catheter is inserted. In this case, a double needle (double puncture needle) is used in which a hollow outer needle and an inner needle detachably inserted therein are combined. That is, the double needle is penetrated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/02
CPCA61B2010/0258A61B10/025
Inventor 野一色泰晴藤田康弘饴谷彰洋关康夫
Owner HI-LEX CORPORATION
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