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Stereospecific instrument with convenient operation

A stereotaxic instrument, a technology that is easy to operate, applied in stereotaxic surgical instruments, medical science, surgery, etc., can solve problems such as troublesome, poor stability and reliability, and achieve fewer parts, high stability and reliability, and compact structure Effect

Inactive Publication Date: 2009-10-28
吕田明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unlike the stereotaxic instrument that uses the principle of three-dimensional coordinate positioning, it does not need a frame that can cover the entire surgical area. Therefore, it can be made smaller in size, simple in structure, and low in cost. At the same time, it only needs to be adjusted during operation. The puncture path can be determined by two angles, and then the surgical instrument can be sent to a specific distance. Fasteners are connected, so its stability and reliability are poor in use, and it is still troublesome to operate

Method used

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  • Stereospecific instrument with convenient operation
  • Stereospecific instrument with convenient operation
  • Stereospecific instrument with convenient operation

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Embodiment Construction

[0010] refer to figure 1 The said stereotaxic instrument of the present invention comprises the chassis 1 that has α angle scale scale on it, chassis frame 2, has the bow frame 3 that has β angle scale scale on it, and has a lead hole 4 on it and can Adjust the tightness of the fasteners 5. The middle part of said chassis 1 is provided with a ball hinge 7 with a guide hole 6 in its center, and the hinge ball 7 can rotate on the chassis 1. Said chassis 1 is also provided with two or more fixing holes 8 (the embodiment provided by the accompanying drawing is three holes) so that chassis 1 is fixed on the supporting device fixed on the skull by screws. Said bow frame 3 is fixedly connected with the chassis frame 2 . The chassis 1 is set in the chassis frame 2 and can rotate in the chassis frame 2 . Said fastener 5 is sleeved on the bow frame 3 and can slide on the bow frame 3 .

[0011] figure 1 The bow frame 3 of the shown stereotaxic instrument has adopted the form that it...

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Abstract

The invention provides a stereospecific instrument which has convenient operation and can convey operating instruments to target points when carrying out operations on cranium and brain to humans or animals. The stereospecific instrument comprises a bottom chassis with an Alpha angle graduated scale, a chassis frame, an arch-shaped bracket with Beta angle graduated scale and a fastening piece which is provided with a lead hole and has adjustable tightness; the central part of the chassis is provided with a spherical hinge, and the center of the spherical hinge is provided with the lead hole and two or more than two fixing holes are also arranged near the spherical hinge; the arch-shaped bracket is fixedly connected with the chassis frame; the chassis is sleeved in the chassis frame and can rotate in the chassis frame; and the fastening piece is sleeved on the arch-shaped bracket and can slide on the arch-shaped bracket. The stereospecific instrument has the advantages of less parts for hinge connection, compact structure, high stability and reliability, simple operation and easy guarantee for operation quality.

Description

technical field [0001] The invention relates to a stereotaxic instrument capable of accurately sending surgical instruments to a target point when performing craniocerebral surgery on humans or animals. Background technique [0002] Stereotaxic instrument is a common medical device that can place microelectrodes, puncture needles and other surgical instruments into specific targets in the brain with the cooperation of image positioning technology. A kind of stereotaxic instrument sold on the domestic and foreign markets is based on the principle of three-dimensional coordinate positioning, after determining the corresponding X, Y, Z three-dimensional coordinates of the target point, and then the surgical instrument is sent to the target point in the brain. When this stereotaxic instrument adopts three-dimensional coordinate positioning, a set of high-precision three-dimensional coordinate frame is attached, and the size of this frame must be able to cover the entire operatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B19/00A61B90/11
Inventor 吕田明
Owner 吕田明
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