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interlocking nested casing

A nesting and cannula technology, applied in the direction of trocars, catheters, medical devices, etc., can solve the problems of inconsistent orientation and damage to biological tissues.

Inactive Publication Date: 2017-07-21
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This uncontrolled movement can deviate significantly from the desired path and damage biological tissue
Also, even with orientations other than 180 degrees, the tubes may twist relative to each other and cause inconsistencies in orientation

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0017] The present invention is premised on a pair of nested tubes having interlocking shapes to limit rotation of the tubes relative to the gap between the tubes. One benefit of this interlocking of the tubes is that the inner tube has a fixed or consistent orientation relative to the outer tube as the inner tube is extended into or retracted from the outer tube. This benefit is particularly important in inner tubes with non-zero curvature (eg, an arc of a circle).

[0018] For example, for the purpose of illustrating the premise of the present invention, figure 1 An inner tube 30 and an outer tube 40 are shown. Tubes 30 and 40 are configured and dimensioned to facilitate nesting of inner tube 30 in outer tube 40, and between tubes 30 and 40 there is Figure 2-4 Gap 50 is shown. The gap 50 is required to facilitate the nesting of the inner tube 30 in the outer tube 40 with minimum friction. Tubes 30 and 40 have a square interlocking shape that limits tubes 30 and 40 relat...

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PUM

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Abstract

An interlocked nested socket set (231) having a plurality of telescopic tubes, the plurality of telescopic tubes are cooperatively configured and sized to extend to the target position relative to the anatomical region. Each tube has a preset interlocking shape. The inner tube (30) nested in the outer tube (40) comprises a gap (50) located between the tube (30,40), the inner tube and the outer tube are interlocked in the gap (50) to limit the rotation of the tube (30,40) relative to the gap (50). The interlocking shape of the tube (30, 40) may be the same or different. Examples of interlocked shapes are polygon interlocking shapes, non-circular closed curve interlocking shapes, polygon - closed curve hybrid interlocking shapes, and keyway interlocking shapes.

Description

technical field [0001] The present invention generally relates to the design and construction of a patient-customized nested cannula to facilitate the performance of minimally invasive surgical procedures. The present invention more particularly relates to a sleeve interlock mechanism that facilitates a fixed relative orientation between telescoping tubes. Background technique [0002] International Patent Application WO 2008 / 032230 to Karen I. Trovato, titled "Moving Sleeve Structure for Minimally Invasive Surgery", teaches a system and method involving nested sleeve design and construction, which The design and construction of the cannula is custom made for the patient to facilitate minimally invasive surgical procedures. The design of the nested cannula is typically patient-specific based on a pre-acquired 3D image of a specific anatomical region of the patient and an identification of the target location within that anatomical region. [0003] Specifically, the nested ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34A61M29/00A61M25/00A61B1/00
CPCA61B17/3421A61B2017/003A61B2017/00331A61B2017/00991A61B2017/3443A61M25/0021A61M25/0023A61M25/0041A61M2025/0006A61M2025/0175A61M2205/6045A61B2034/107
Inventor E·E·格林布拉特K·I·特罗瓦托A·波波维奇D·斯坦顿
Owner KONINK PHILIPS ELECTRONICS NV