KR20170059656A - Indentification device of epidural space and Tuohy needle therof - Google Patents

Abstract

Conventionally, epidural anesthesia or insertion of a catheter is a surgical procedure used for surgery, pain treatment and management by an anesthetic which is performed by inserting a special injection needle called a Tuohy needle into the vertebrae. In the conventional method, first, the needle is inserted through the skin to find the proper point, and then the needle is placed behind the needle and the air is continuously injected to feel resistance. When the needle is advanced to enter the epidural cavity, all resistance is lost Rather, it takes a negative pressure, recognizing that the needle has entered the epidural space, stopping the progress of the needle, injecting the drug, and so on. The detection by this pressure sensor removes the puncture needle from the puncture needle before entering the diaphragm, and the pressure sensor is attached to enter the diaphragm. Therefore, the tip of the puncture needle may be clogged by muscles, There is a problem in ensuring reliability.
The present invention relates to an epidural cortical cortical system that assists epidural anesthesia, and more particularly, to an epidural catheter system that visually recognizes the moment when the injection needle enters the epidural cavity according to a change in image through an optical fiber at the time of entry into the epidural space The present invention relates to an epiderodal cognition system that assists anesthesia.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an epidural space,

It is related to the recognition that the injection needle enters the epidural space through the skin, the supraspinous ligament, the lnerspinous ligament, and the yellow ligament when injecting the epidural cavity of the human vertebra. The present invention relates to an epidural anesthesia device using an optical fiber for a puncture needle in an injection needle and recognizing whether an image coming through the optical fiber has reached the epidural space through the lens at the end of the puncture needle.

The present invention relates to an epiderodal cognition system for assisting epidural anesthesia and treatment, and more particularly, to an epidural anesthesia cognition system for visualizing a moment when an injection needle enters an epidural cavity according to a change in an image inputted through an optical fiber at the time of entry into an epidural space To an epidural anesthesia < RTI ID = 0.0 > system. ≪ / RTI >

Conventionally, epidural anesthesia is a surgical procedure used for surgery and pain treatment and management by injecting a special injection needle called a Tuohy needle into the vertebrae as shown in FIG.

In the existing procedure, first locate the appropriate point, insert the needle through the skin, put the needle tube behind the needle tube, continue injecting air, feel resistance, and advance the needle. After the puncture needle passes through the skin, supraspinous ligament, and lnerspinous ligament, the resistance that is felt when passing through the yellow ligament is the highest when passing through the yellow ligament, And the pressure is applied to the needle. At this time, the needle recognizes that the needle has entered the epidural space, and the operation of the needle is stopped and the drug is injected. At this time, as shown in FIG. 1, the needle (A) must be correctly moved to the diaphragmatic muscle, but if the needle passes through the epidural space, there is a danger that the nerve or the intervertebral disc (disc)

The needles must be located precisely within the epidural space. In the past, passive methods that depend on the hand sense of the practitioner have been mainly used. Three representative methods are used. The first is the resistance dissipation method in which the operator senses that the resistance of the tissue against the hand pushing force instantaneously disappears momentarily when the needle is inserted into the epidural space through the tissue and stops the advancement of the needle. After filling the inside of the catheter with physiological saline, suspending the bottle injection device, connecting the injection needle, advancing the injection needle, observing the injection mechanism, and detecting the absorption of the physiological saline when entering the epidural space, After hanging drop method and thirdly air needle and catheter are connected to small balloon, air is injected into the epidural cavity to visually detect the sudden decrease in size of balloon, It uses the Macintosh balloon method to stop the advancement. Of these methods, the resistance dissipation method is the most preferred (about 95% in the US), and a special dual piston syringe has been developed to assist in this resistance dissipation method. However, the needle and catheter are filled with saline solution The syringe should be filled with air. However, in the passive method, the storage disappearance method is inconsistent with the practitioner's experience by placing the needles according to the tactile and visual sense of the practitioner, resulting in poor consistency and accuracy. When the needles penetrate the epidural space, In addition, there is a problem in that the practitioner must directly perform the procedure in the training process and accumulate the experience. Therefore, there is a problem that the patient may be disadvantageous. The saline infusion method is troublesome because it has to fill the inside of the tube with the liquid physiological saline, There is a risk of infection due to direct contact between the tissue and the liquid, and the Macintosh balloon method uses air to reduce the risk of infection. However, when the amount of air absorbed in entering the epidural space exceeds 2, it causes various problems such as neuromuscular compression, air embolism and incomplete anesthesia There was a problem that side effects occurred. Korean Patent No. 10-040088 discloses an apparatus for automatically detecting the time of entry of an injection needle in response to a change in pressure at the time of entry into an epidural space. However, the detection by the pressure sensor requires a puncture needle in a puncture needle And the pressure sensor is attached to enter the diaphragm. Therefore, the tip of the puncture needle may be clogged by the muscles, and an error not detected by the pressure sensor may be generated.

Conventionally, epidural anesthesia or insertion of a catheter is a surgical procedure used for surgery, pain treatment and management by an anesthetic which is performed by inserting a special injection needle called a Tuohy needle into the vertebrae. In the conventional procedure, first, the needle is inserted through the skin to find an appropriate point, and then the needle is placed behind the needle and the air is continuously injected to feel resistance. When the needle is advanced to enter the epidural cavity, all resistance is lost Rather, it takes a negative pressure, recognizing that the needle has entered the epidural space, stopping the advance of the needle, injecting the drug, and so on. In addition, there has been proposed an apparatus for automatically detecting the time of entry of a needle according to a change in pressure when entering into an epidural cavity. However, the detection by the pressure sensor removes the puncture needle from the puncture needle before entering the diaphragm, The tip of the puncture needle is likely to be clogged by muscles, and an error not detected by the pressure sensor may be generated. As shown in FIG. 1, needle (A) should be correctly moved to the diaphragmatic outer bore, but there is a risk that the needle penetrates the epidural cavity, causing injury to the nerve or intervertebral disc (disc).

The present invention relates to an epidural cortical cortical system that assists epidural anesthesia, and more particularly, to an epidural catheter system that visually recognizes the moment when the injection needle enters the epidural cavity according to a change in image through an optical fiber at the time of entry into the epidural space The present invention relates to an epiderodal cognition system that assists anesthesia.

The present invention relates to an epidural anesthesia cognition system for visually recognizing a moment when an injection needle enters an epidural cavity through a lens through an optical fiber when entering an epidural space in an epidural anesthesia in order to solve the above problems.

The present invention relates to a percutaneous visceral percutaneous visceral system which can visually recognize the entry of a puncture needle into a diaphragmatic muscle. Since the puncture needle is covered with a puncture needle (optical fiber), foreign substances can not enter into the puncture needle, Since the end of the needle can be visually recognized through the lens at the end, it is possible to ensure reliability by accurately recognizing the end position of the needle.

Danger of 1-needle needle and needle puncture procedure
Fig. 2 Diagram of the apical needle,
Fig. 3 Structure of the needle and the combination of the needle and the needle

The present invention relates to a diaphragmatic extracorporeal cryosystem capable of accurately visually recognizing the entry of a puncture needle into a diaphragmatic cavity. An image input through an optical fiber at the time of entry into an epidural cavity in an epidural anesthesia is injected through the lens into the epidural cavity To an ependymal cortex cognition system.

Epidural anesthesia or insertion of a catheter is an anesthetic that is performed by inserting a special needle, called a Tuohy needle, into the vertebrae, which is used for surgery, pain treatment and management. First, a puncture needle is inserted through the skin to find an appropriate point, and then the needle is advanced to recognize that the needle has entered the epidural space. Then, the operation of the needle is stopped and the drug is injected.

In contrast to conventional pressure-sensitive surgical techniques, the present invention recognizes that an image of an end of a needle inserted into a diaphragm can be seen through a magnifying lens through an optical fiber to the tip of a needle, Intra-diaphragmatic anesthesia or a catheter is inserted to perform surgery, pain treatment and management.

As shown in FIGS. 2 and 3, the configuration of the diaphragm legroom recognition system according to the present invention includes a lancing needle 6 made of an optical fiber, a half mirror 4 for shining light at the front end of the optical fiber, an LED lamp 5 for giving light to a half mirror, And a lens 2 for magnifying the image received from the end of the optical fiber. The puncture needle 1 shown in FIG. 2 is attached (8) to the puncture needle 7 as shown in FIG. 3, thereby preventing foreign matter from entering the puncture needle when the puncture needle comes in and the image of the puncture needle tip is passed through the magnifying lens 2 .

The light emitted from the LED lamp 5 is reflected by the front end 601 of the optical fiber through the reflecting lens and illuminates the living tissue through the optical fiber through the optical fiber 602, Through the optical fiber 602601 to the magnifying lens 2, and through this image, the tip of the puncture needle 7 enters the diaphragmatic outer surface. In other words, the image of the biotissue is reddish until it reaches the diaphragm, and when the puncture needle is inserted into the diaphragm, the system recognizes the transparent color as an eye to see whether the puncture needle has entered the diaphragm.

The optical fiber used in the present invention can use an outer diameter of 0.25 to 1 according to the size of the puncture needle hole and can observe the image through the magnifying lens regardless of the outer diameter. The material of the optical fiber may be any material.

The size and shape of the lens used in the present invention may be round or square, and the value of the radius (R) is determined according to the distance between the end of the optical fiber and the lens. Also, the number of lenses can be adjusted according to the focal length and method.

As shown in FIG. 4, the puncture needle equipped with the diaphragmatic limb-ventricular perforation system is introduced into the diaphragmatic lumen as shown in FIG. 4 (A) and the catheter or anesthetic agent is removed as shown in (B) and Inserted.

1. The Thousand Needles
2. Magnifying lens
3. Battery
4. Half mirror
5. LED lamp
6. Optical fiber
7. The needle of the puncture needle
8. A combination of a needle and a needle

Claims (2)

The present invention relates to a diaphragmatic extracorporeal cryosystem capable of visually recognizing that a puncture needle enters a diaphragmatic cavity, and irradiates light to the front end of the optical fiber through a reflector upon entry into the epidural space in epidural anesthesia or treatment Wherein an image of a living tissue introduced through the back end of the optical fiber is visually recognized at a moment when the injection needle enters the epidural cavity through the lens.
The epicutaneous cognitive system according to claim 1, wherein the diaphragmatic cavity recognition system comprises an optical fiber, a reflector, a magnifying lens, an LED, and a battery.

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