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Surgical instrument

A technique of surgical instruments and instruments, applied in the fields of surgery, fixators, medical science, etc., can solve the problems of omission and repair in a hurry

Inactive Publication Date: 2019-02-05
JRI 整形外科有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, repairing damaged cartilage is often the last priority due to time constraints on surgery, and once joint impingement is resolved, this repair is rushed or even omitted if there is not sufficient time remaining

Method used

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  • Surgical instrument
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Experimental program
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Embodiment Construction

[0106] In this disclosure, the following terms may be understood with reference to the following:

[0107] The term "target area" may refer to the surgical site on which it is desired to operate;

[0108] The term "direction of entry" may refer to the direction in which the surgical tool approaches the target area;

[0109] The term "working direction" may refer to the direction in which the surgical tool is manipulated on the target area, for example by applying a working load in the working direction. The working direction may be the angular deviation of the working end (see below) from the direction of entry or from the longitudinal axis of the shaft;

[0110] The term "restricted joint space" may refer to a joint space in which the axes of the entry and work directions are not always collinear for each given target region;

[0111] The term "proximal end" may refer to the end of the instrument which, in use, is farthest from the target area;

[0112] The term "distal en...

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PUM

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Abstract

A surgical instrument for minimally-invasive arthroscopic use in a constrained joint space, the surgical instrument comprising: a handle assembly; a shaft assembly including: a shaft having a longitudinal shaft axis and a lumen therethrough and being connected to the handle assembly at a proximal end of the shaft; and an operative portion including a working tip with a tool mounted thereon at a distal end of the shaft, wherein, in use, the operative portion is selectively moveable between a first configuration in which the operative portion is substantially aligned with the longitudinal shaftaxis, and a second, deployed, configuration in which at least part of the operative portion has: a selectable working direction defined by the angle between the tool and the longitudinal shaft axis; and a selectable lateral displacement defined by the linear distance between the working tip and the longitudinal shaft axis, measured at a central location point at which the tool is mounted thereon and perpendicular to the longitudinal shaft axis, the working direction and lateral displacement being selectable independently of one another.

Description

technical field [0001] The present invention relates to a surgical instrument for minimally invasive arthroscopic use in confined joint spaces. In particular, but not exclusively, the present invention relates to a surgical instrument for removing an osteoarthritic lesion and for delivering a regenerative medical product (RMP) to a target area. Background technique [0002] Osteoarthritis (OA) is a condition characterized by the degeneration of articular cartilage and underlying bone. OA causes pain and stiffness in the affected joint or joints, which can make it difficult to move the affected joint. OA usually occurs in the small joints of the hips, knees, and hands. Treatment for osteoarthritis includes lifestyle changes, medications, supportive care, surgery, and complementary or alternative therapies. [0003] WO2010148125 A1 discloses a microfracture method and device for articular cartilage repair. At least two separate channels spaced a predetermined distance from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16A61B17/88
CPCA61B17/1604A61B17/1617A61B17/1624A61B17/1637A61B17/1664A61B2017/003A61B2017/00314A61B2017/00323A61B17/8836A61B2017/00464A61B17/8805
Inventor 克里斯托弗·卡弗爱德华·理查德·康奈尔·德雷珀伊恩·约翰·弗拉泰斯贾尔斯·弗朗西斯·曼斯菲尔德·普罗菲特
Owner JRI 整形外科有限公司