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Lockable joint

A joint and locking technology, applied in the field of surgical instruments and related structures, can solve the problems of difficult to adjust the retractor bracket, difficult to adjust the right and left bracket arms, etc., to achieve easy handling and storage, high reliability and effective. sexual effect

Active Publication Date: 2009-09-02
H·弗里克
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While convenient for locking, the stand arms at the same time can make it difficult to adjust the right and left stand arms independently of each other
Additionally, in many prior art retractor mounts, the clamping member also secures the pivotable connection between the support arm and the clamping member to which the right and left support arms are secured, sometimes making it difficult to Difficulty adjusting the retractor bracket as needed

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0073] Figure 1 shows a surgical retractor system 10 comprising four surgical retractors 12.1, 12.2, 12.3 and 12.4. In the following, a reference number without a suffix refers to the object itself. The surgical retractor 12 is mechanically clamped to either the first arm 14 or the second arm 16 of the surgical retractor bracket 18 .

[0074] Surgical retractor bracket 18 also includes anchor elements 20 configured to mount on an operating table (not shown). The anchor element 20 has a connection anchor 22 connected to a clamp rod 24 . Anchor element adapters 26 are provided to releasably and pivotably mount support arms 28 of the surgical retractor bracket 18 . The first arm 14 and the second arm 16 have the same shape and are cylindrical in section and form an arc. The support arm 28, the first arm 14, the second arm 16 and the schematically shown body 34 interconnecting them (described in more detail below) are part of a lockable joint assembly 49 (also described in deta...

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PUM

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Abstract

The invention relates to a lockable joint, especially a lockable ball-and-socket joint, comprising a first arm (14) having a swivel head (30), a socket (32), the swivel head (30) being pivotably mounted to the socket (32), and a locking device (90) arranged for locking the swivel head (30) with respect to the socket (32), the locking device (90) having a piston (70'), a pressure gas source (64), and an actuating device (92) arranged for reversibly disconnecting the piston (70') from the pressure gas source (64) where in the pressure gas source is a gas cartridge (64).

Description

technical field [0001] The present invention relates generally to the field of surgical instruments. More particularly, the present invention relates to lockable joints, particularly lockable ball joints, comprising a first arm having a swivel head, a ball socket, the swivel head being pivotally mounted on a ball On the socket, locking means arranged to lock the swivel head with respect to the ball socket, the locking means having a piston, a source of pressurized gas, and actuating means arranged to reversibly disconnect the piston from the source of pressurized gas. The invention also relates to the field of related structures secured to operating tables or other fixed structures. [0002] Such a lockable joint is known from US 5,201,325. The lockable joint in this document can be actuated by pressurized gas delivered through a gas hose. Because the air pressure of the pressurized gas within the gas hose is generally not sufficient to securely clamp the lockable coupling,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B19/00F16C11/10F16M11/14A61B17/00A61B17/02
CPCA61B2017/00544F16M11/14A61B2019/266A61B17/02A61B2017/00548F16C11/106F16M2200/022A61B19/26A61B90/50A61B2090/508A61B1/00149F16C2316/10Y10T403/32311F16C11/10
Inventor H·弗里克L·E.·格里菲特
Owner H·弗里克