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Optical auxiliary distance measurement scalpel

A scalpel and optical technology, which is applied in the field of medical devices, can solve the problems of poor precision of tumor cutting surgery and large randomness of surgeons, and achieve the effects of improving indication accuracy, reducing circumference, and being convenient to use

Active Publication Date: 2016-07-27
田俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the process of realizing the present invention, the applicant found that the improvement of the scalpel in the prior art is mostly focused on controlling the depth of cutting or expanding the surgical field of view, etc., and there is no scalpel that can dynamically indicate the distance from the tumor edge during surgery. The randomness of the operator is large, resulting in poor accuracy of tumor resection

Method used

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  • Optical auxiliary distance measurement scalpel
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  • Optical auxiliary distance measurement scalpel

Examples

Experimental program
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no. 1 example

[0049] In a first exemplary embodiment of the present invention, a laser assisted ranging scalpel is provided. Please refer to image 3 , the laser-assisted ranging scalpel in this embodiment includes: a handle 10; a cutter head 20, which is fixed on the front end of the handle; a laser 30, which is fixed on the handle 10, and the laser beam emitted by it is inclined by a predetermined amount relative to the axis of the handle. Let the angle θ. Wherein, the distance between the light spot formed by the laser on the plane passing through the tip of the knife and perpendicular to the handle of the knife and the tip of the knife is the safe distance L for surgical cutting.

[0050] During use, the laser beam is projected on the surface of the diseased tissue to form a spot A, which is positioned at the edge of the tumor 61 as the origin of distance control. Based on the distance control origin, at this time, the distance between the position B of the knife tip and the tumor 61 ...

no. 3 example

[0078] In a third exemplary embodiment of the present invention, another laser-assisted ranging scalpel is provided.

[0079] Please refer to Figure 5 , the laser-assisted ranging scalpel in this embodiment is similar to the first embodiment, the difference is that it has three independent lasers (31, 32, 33), and the three lasers are arranged inside the handle of the knife and emit the inclination angle of the laser beam Different, the laser spots corresponding to the three are A1, A2 and A3 respectively, and the distances between the three laser spots and the tool tip are respectively: L1=1mm, L2=5mm, L3=10mm. In this example,

[0080] In actual use, use the selector switch to select one of the three lasers to work according to the safe distance required for tumor surgery. The laser light spot emitted by the laser corresponds to the distance control origin A2, which corresponds to a safety distance of 5 mm. During the operation, move the position of the laser-assisted ran...

no. 5 example

[0089] In the fifth exemplary embodiment of the present invention, another optically assisted ranging scalpel is provided. The laser-assisted ranging scalpel in this embodiment is similar to the first embodiment, the difference is that an LED light source + a collimator is used instead of a laser to provide a collimated parallel beam.

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Abstract

The invention provides an optical auxiliary distance measurement scalpel. In the optical auxiliary distance measurement scalpel, a collimating light source is arranged at a scalpel handle, a light spot formed by collimating parallel light beams emitted by the collimating light source is positioned to the edge of the lesion tissue and serves as a distance control origin point, the distance between the light spot and the point of the scalpel is set as a safe distance for surgical cutting, the point position of the scalpel is a surgical cutting position on the premise that the minimum safe distance is ensured, and accordingly the distance between the scalpel and the edge of the lesion tissue can be dynamically indicated during operation.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an optical-assisted ranging scalpel. Background technique [0002] Surgery is the main way to treat various benign / malignant tumors. The basic principles of tumor surgery are the principle of non-cutting and en bloc resection. In addition, various measures need to be applied to prevent the direct planting or dissemination of discrete cancer cells during the operation. To prevent recurrence, that is, the principle of no tumor. Therefore, when resecting the tumor, it must be resected at a certain distance from the peritumoral area. The resection margin in the oncological sense refers to the tissue area (Margins) between the border of the tumor and the border at the time of resection. A large number of studies have shown that the postoperative pathological status of surgical margins is an independent risk factor for the prognosis of malignant tumors. Positive resectio...

Claims

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Application Information

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IPC IPC(8): A61B18/12A61B18/20A61B17/3211
CPCA61B17/320068A61B17/3211A61B18/12A61B18/20
Inventor 田俊王斌全魏永祥张三妹皇甫辉杨向茹
Owner 田俊