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3D contact force sensing

A pressure sensor, sensor chamber technology, applied in the field of force measurement systems, which can solve problems such as limited usefulness, limited range of knowledge, and insufficient understanding of the nature and details of contacts

Pending Publication Date: 2020-09-11
MEASUREMENT SPEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the scope of this knowledge is limited, and therefore its usefulness
That is, since only one data point reflects the contact force, the surgeon may not have sufficient knowledge of the nature and details of the contact between the catheter and the cell wall

Method used

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Examples

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Embodiment Construction

[0029] Embodiments of the present invention may provide a contact force sensing system that provides information to the surgeon that a contact magnitude has been exceeded. For example, embodiments of the invention may provide information about the direction of forces encountered by a contact force sensing system. Alternatively, these and other embodiments of the invention may alternatively provide a contact force sensing system that communicates guidance information. An example of a contact force sensing system that provides orientation information as shown in the figure below.

[0030] figure 1 A contact force sensing system according to an embodiment of the invention is shown. This figure and other included Figure 1 As such, it is shown for the purpose of illustration and does not limit the possible embodiments or claims of the present invention.

[0031] The contact force sensing system 100 may include a plurality of pressure sensor chambers 110 located at the perimete...

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Abstract

A force-measurement system (400) can include three or more fluid-filled pressure-sensor chambers (410) around a central rod (434). The force-receiving structure (430) can receive a force at a ball (432) and provide that force through the central rod (434) to a force-distribution structure (420). The force-distribution structure (420) can provide the force to the pressure-sensor chambers (410). These resulting pressures can be used to determine the magnitude, angle, plane angle, and off plane angle of the force received by ball (432).

Description

technical field [0001] The present invention relates to a force measurement system that can provide additional information about the forces applied to cell walls and other surfaces by catheters and other devices. Background technique [0002] In recent years, minimally invasive surgery has become an invaluable tool in the medical field. Minimally invasive surgery reduces patient risk, improves outcomes, speeds up recovery time, and reduces costs compared to traditional surgery. [0003] Several techniques can be used for minimally invasive surgery. Typically, catheters can be introduced into the body through cell walls or natural pores, for example through the vascular system. Once the catheter is in the desired location, specific surgical techniques can be applied. For example, ablation using radiofrequency heating or liquid cooling, angioplasty using expandable structures, drug delivery, and other techniques may use catheters and associated devices and devices. [0004...

Claims

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Application Information

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IPC IPC(8): G01L5/171A61B5/04
CPCG01L5/171A61B5/6885A61B5/6853A61B5/4836A61B5/7455A61B2562/0247A61B2562/0261A61B2562/0252A61B2562/046A61B2562/168A61B2562/221G01L7/182G01L7/185
Inventor A.贾马利
Owner MEASUREMENT SPEC