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Device for locating an anatomical cavity in a body and device for measuring and transmitting signal

A signal sending device and a technology for measuring signals, which are applied in the field of equipment for determining the position of an anatomical cavity in the body and the field of measurement and signal sending devices, and can solve problems such as inability to observe needles

Inactive Publication Date: 2006-10-11
MILESTONE SCIENTIFIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice this proved to be unsatisfactory, so the person operating the device was also looking at the screen, which made it impossible to observe the needle.

Method used

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  • Device for locating an anatomical cavity in a body and device for measuring and transmitting signal
  • Device for locating an anatomical cavity in a body and device for measuring and transmitting signal
  • Device for locating an anatomical cavity in a body and device for measuring and transmitting signal

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 A first preferred embodiment of the device according to the invention is shown, indicated as a whole by reference numeral 1 .

[0026] figure 1 One possible application of the device 1 is shown, in particular for determining the position of an anatomical cavity, in particular the epidural space, in the human body. exist figure 1A small part of the human body is shown in cross-section in , which is indicated by reference numeral 10 . The anatomical or epidural space is indicated by reference numeral 15 .

[0027] The device 1 comprises a hollow puncture needle 20 with a needle tip 21 . in such as figure 1 In the example shown, the puncture needle 20 has been partially inserted into the body 10 with the needle tip 21 in the vicinity of the epidural space 15 . The puncture needle 20 is provided with a handle 22, which is held by a person handling the puncture needle 20, such as a physician. This handle 22 enables the user to exert a pushing or pulling force...

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PUM

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Abstract

The invention describes a device (1) for locating an anatomical cavity (15) within the body (10). The device includes a fluid-filled container (30) sealed in a sealing manner by a movable plunger (32) and in communication with a hollow puncture needle (20). To measure the pressure in the fluid, the device includes a pressure gauge (40). A signal converter (50) is used to convert the continuous pressure measurement signal provided by the pressure gauge (40) into a form suitable for further processing. The synthesizer (60) is designed to process the converted pressure measurement signal into a continuous sound signal representing the pressure. If the needle tip (21) reaches the anatomical cavity (15) during the displacement of the puncture needle (20), an easily perceptible change occurs in the acoustic signal. The device includes recording means for recording pressure measurement signals over a period of time.

Description

technical field [0001] The present invention relates to a device and a method for determining the position of an anatomical cavity in vivo. Background technique [0002] It is important to locate an anatomical cavity in a body such as a patient's body, which is used, for example, in anesthesia, where it is often necessary to introduce an anesthetic substance into an anatomical cavity, such as the epidural space located near the spinal cord. To locate an anatomical lumen, it is generally known to use a hollow needle and a container filled with an isotonic liquid or gas mixture, usually a syringe with a movable plunger. In this case, a hollow needle is inserted into the patient's body in the vicinity of where the body cavity is located. The syringe is located at the free end of the needle through which the liquid or gas mixture is injected out of the syringe and into the patient's body. A person handling a syringe with a needle, such as a physician, uses one hand to insert t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34A61M5/48A61B5/03A61M31/00A61M19/00
CPCA61B5/032A61B5/4839A61B5/4896A61B17/3401A61B5/7415A61B5/03
Inventor 蒂莫休斯·琼·玛丽·莱奇纳
Owner MILESTONE SCIENTIFIC INC
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