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
Comparison scheme
Effect test

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

A device (1) is designed for locating a region which is situated in a body (10). The device has a fluid-filled reservoir (30) which is closed off in a sealed manner by a displaceable plunger (32) and is connected to a hollow puncture needle (20). To measure the pressure prevailing in the fluid, the device has a pressure gauge (40). A signal converter (50) is used to convert a continuous pressure-measurement signal provided by the pressure gauge (40) into a form which is suitable for further processing. A synthesizer (60) is designed to process the converted pressure-measurement signal into a continuous sound signal which is representative of the pressure. If, during a displacement of the puncture needle (20), a needle point (21) reaches the anatomical cavity (15), the result is a readily perceptible change in the sound signal. The device records the pressure-measurement signal over the course 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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