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Surgical skull grinding temperature online detection and controllable handheld grinding device

A grinding temperature and surgical technique, applied in the field of medical devices, can solve problems such as uncertainty, and achieve the effects of reducing current, realizing temperature, and protecting from damage

Active Publication Date: 2014-11-19
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neurosurgeons are currently uncertain how much heat is generated at the wheel / bone interface and transferred to the bone and adjacent nerves during bone grinding

Method used

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  • Surgical skull grinding temperature online detection and controllable handheld grinding device
  • Surgical skull grinding temperature online detection and controllable handheld grinding device
  • Surgical skull grinding temperature online detection and controllable handheld grinding device

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] figure 1It shows the various components of the medical hand-held grinding device with a temperature measuring device. The transmission and positioning of each part are as follows: the housing 10 is composed of symmetrical upper and lower halves, and is connected and fixed by screws through threaded holes 20. The cutting device is externally connected to a DC power supply, the DC power supply and the control switch 19 are connected by a wire, the control switch 19 is connected with the feedback device 18 by a wire, the feedback device 18 and the DC motor 22 are connected with a wire, the DC motor 22 is fixed on the motor base 21, and the DC motor 22 and the driving gear shaft 26 are connected through a coupling 23, one end of the coupling 23 is connected with the main shaft of the DC motor through a pin to realize axial positioning, and the circum...

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Abstract

The invention relates to a surgical skull grinding temperature online detection and controllable handheld grinding device. The surgical skull grinding temperature online detection and controllable handheld grinding device is high in control precision, and skull grinding acoustic emission signals are monitored, so that the rotational speed of a grinding wheel is adjusted, the grinding temperature is reduced in a skull grinding procedure, and heat injury to brain tissues of a patient can be effectively prevented. The surgical skull grinding temperature online detection and controllable handheld grinding device comprises a shell, the grinding wheel is mounted at the front end of the shell and is connected with a direct-current motor by a transmission, an acoustic emission sensor is arranged at a joint of the grinding wheel and the shell and is connected with a signal analysis processing module by a conducting wire, the signal analysis processing module is arranged in the shell and is respectively connected with a feedback device and a display and alarm device, and the direct-current motor is connected with a direct-current power source by the feedback device via a control switch. The signal analysis processing module receives the acoustic emission signals which are generated during skull grinding and are detected by the acoustic emission sensor, whether an overheating condition occurs or not is judged, and the rotational speed of the direct-current motor is controlled via the feedback device.

Description

technical field [0001] The invention relates to a medical device, in particular to a surgical skull grinding temperature online detection and controllable hand-held grinding device. Background technique [0002] Neurosurgeons often use endoscopic enlargement of the nasal passages through the nostrils to treat patients with cancer of the skull base during bone grinding. This minimally invasive technique provides a direct access to skull base tumors without disfiguring conditions. Finding and removing diseased tumors during brain tumor resection requires extensive grinding of the bone surrounding the optic nerve, cavernous sinus, and branches of the trigeminal nerve to identify and protect these major nerves. During the grinding of bone, heat is generated and nerves may be damaged. Such thermal injury can lead to blindness and loss of facial muscle control, and is of great concern to neurosurgeons due to lack of knowledge of heat transfer to nerves during bone grinding. Hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/16G05D23/20
Inventor 张东坤李长河马宏亮侯亚丽
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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