Spindle device of cutter for nasal surgery

A cutter and mandrel technology, applied in parts of surgical instruments, endoscopic cutting instruments, surgery, etc., can solve the problems of long operation time, no hollow motor shaft, troublesome operation, etc., to shorten the operation time, Better effect and reasonable structural design

Active Publication Date: 2014-04-02
ZHEJIANG SHENDASIAO MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the structure of this patent is simple, the operation is cumbersome, the operation time is long, and there is no hollow motor shaft and suction structure, so it still has the above defects

Method used

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  • Spindle device of cutter for nasal surgery
  • Spindle device of cutter for nasal surgery
  • Spindle device of cutter for nasal surgery

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0027] see Figure 1-Figure 8 , this embodiment mainly includes a handle 1, a motor 2, a hollow motor shaft 3, a bearing 5, a sealer 6, a suction interface 7, a power interface 8, a suction fixing sleeve 9, a sealing ring 12, a fixing sleeve 13, and a spring seat 14 , Fixed knife seat 16, ferrule 17, spring fixed sleeve 19, cutter seat 21, fixed knife tube 25, movable knife tube 26, bayonet 31, bearing seat A and spring B.

[0028] In this embodiment, the handle 1 is connected to the bayonet socket 31, the second card seat 29 is inserted into the hollow motor shaft 3 and welded and fixed, the hollow motor shaft 3 is inserted into the motor 2 for installation, and the bearing seat A includes the No. 1 bearing seat 4 ...

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Abstract

The invention relates to a spindle device of a cutter for nasal surgery and belongs to the field of medical instruments. The spindle device comprises an arbor, bayonets, a motor, a hollow motor shaft, a movable cutting pipe, a fixed cutting pipe, a fixed holder, a flushing and sucking joint and a flushing and sucking fixing sleeve. The arbor and the bayonets are of integral structure, the hollow motor shaft is connected with the motor, the fixed cutting pipe is fixed to the fixed holder, the movable cutting pipe is inserted into the fixed holder, both the fixed cutting pipe and the movable cutting pipe are provided with serrated cutting edges, and the hollow motor shaft is connected with the serrated cutting edge of the movable cutting pipe. Besides, the flushing and sucking joint is connected with the motor hollow shaft, a sealer is arranged at one end of the hollow motor shaft, the flushing and sucking fixing sleeve is arranged at the other end of the hollow motor shaft, the sealer is in contact with the flushing and sucking fixing sleeve, and seal rings are sleeved on the fixed holder and the flushing and sucking fixing sleeve. The spindle device has the advantages of reasonable structure, operational simplicity and reliability, convenience in mounting and demounting, good sealing effect and low production cost and meets people's requirements in use.

Description

technical field [0001] The invention relates to a device, in particular to a mandrel device specially used for a human nasal cavity surgical cutter, which belongs to the field of medical instruments. Background technique [0002] The nasal cavity is the window of the human respiratory tract. In recent years, due to air pollution, climate change, and the entry of respiratory tract bacteria, nasal cavity diseases will be caused, such as allergic rhinitis, chronic rhinitis, chronic sinusitis, etc. At present, the number of people suffering from nasal cavity diseases is increasing. More and more, and the age tends to be younger. The latest clinical medicine at home and abroad has confirmed that 80% of nasopharyngeal cancers in the world occur in China, which is caused by the deterioration of rhinitis. During nasal cavity surgery, nasal cavity disease needs surgical resection and special surgical rotary cutting instruments. [0003] Nasal cavity diseases in nasal cavity surgery ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/32A61B17/24A61M27/00A61M3/02
CPCA61B17/24A61B17/32A61B17/320016A61B2017/00398A61B2218/001
Inventor 沈济民申屠丙花
Owner ZHEJIANG SHENDASIAO MEDICAL INSTR
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