6-DOF (degree of freedom) gravity balanced operating microscope frame

An operating microscope, gravity balance technology, applied in the direction of machine/stand, supporting machine, mechanical equipment, etc., can solve the problems of large moment of inertia, heavy frame weight, complex mechanism, etc., achieve simple flexibility, improve stability, The effect of lowering the center

Inactive Publication Date: 2010-05-05
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] There are existing patents related to the gravity balance surgical microscope frame abroad, such as the European patent "SurgicalMicroscope Unit" (EP0700665B1) and the US patent "Counterbalanced Supporting Frame for a Surgical Microscope" (US5173802) The gravity balance frame used for surgical microscopes is a lever In theory, the lever-type gravity balance rack has a stable moment balance ability, but the mechanis

Method used

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  • 6-DOF (degree of freedom) gravity balanced operating microscope frame
  • 6-DOF (degree of freedom) gravity balanced operating microscope frame
  • 6-DOF (degree of freedom) gravity balanced operating microscope frame

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Embodiment

[0028] Example: attached figure 1 It is a schematic diagram of the overall structure of the present invention: the frame is composed of a base 10, a column 20, a carrying arm 30, a rear support 40, a balance arm 70 and a small frame 80, and the microscope 100 is connected with the small frame 80.

[0029] The balance arm 70 is pinned to the rear bearing 40 by the upper pull rod 71 and the lower rod 72 through pin shafts 45, 74 and pinned to the front bearing 77 by pin shafts 76, 78 to form a parallelogram structure.

[0030] Since the weight of the counterweight 210 is constant, if the resistance of the pulleys and the weight of the cable itself are ignored, the tension on the cable 33 is constant, the total tension on the cable 33 is equal to the weight of the counterweight 210, and the two working cables 33b each bear 1 / 2 the weight of the counterweight. As the balance arm 70 swings up and down, the balance torque produced by the cable 33 to the lower rod 72 through the mo...

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Abstract

The invention discloses a 6-DOF (degree of freedom) gravity balanced operating microscope frame which comprises a footstand, an upright post, a bearing arm, a rear supporting seat, a balance arm, a front supporting seat and a small frame. The invention designs a combining mode of transmitting balance force through a cable and adding a balance moment through a movable pulley and a lever with a built-in balance weight to realize the balance of an operating microscope and a cantilever and designs a break-proof cable structure of double working cables and a safety cable so as to guarantee the working safety of the frame. Six rotation degrees of freedom of the whole frame are all electromagnetically locked, and the built-in gravity balanced structure effectively reduces the gravity center of the frame, thereby improving the stability. Compared with lever type gravity balance, the frame has the characteristics of flexibility and compact appearance.

Description

technical field [0001] The invention relates to a frame, in particular to a 6-degree-of-freedom built-in gravity balance operating microscope frame. Background technique [0002] The operating microscope frame is the assembly of all parts of the operating microscope except the microscope. Its function is to support the microscope, provide enough working space for the microsurgery process, and have up to 6 degrees of freedom, so that the microscope can maintain balance and lock reliably in any position and posture in the operation area. Surgical microscope racks are generally divided into suspension structures fixed on the ceiling and mobile structures using foot rollers. Both structures have cantilever structures. There are three ways to balance the balance arm, mechanical spring balance, pneumatic spring balance and gravity balance. At present, domestic operating microscopes mainly use mechanical spring balancing, and a small amount of pneumatic spring balancing. There is...

Claims

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Application Information

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IPC IPC(8): G02B7/00F16M11/04
Inventor 张冰蔚
Owner JIANGSU UNIV OF SCI & TECH
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