Side tube of guide sheath for peripheral bronchial lesion treatment

Abstract

The present invention relates to a guide sheath for peripheral bronchial lesion treatment, comprising a side tube for saline infusion, and injects physiological saline, which has been injected for peripheral bronchial dilation and access, through the side tube so that the physiological saline can efficiently reach a peripheral lung lesion as the physiological saline is injected through the side tube without insertion and removal of the guide sheath as in a conventional procedure, such that the precision and efficiency of a bronchoscopy procedure for diagnosing the peripheral lung lesion can be improved. In a conventional procedure, cold physiological saline or epinephrine for hemostasis could be administered after removal of the guide sheath and biopsy forceps, but the side tube of the guide sheath can administer a solution that assists hemostasis immediately after biopsy such that reduced side effects after the procedure and improved safety for the patient can be expected.

Description

Side tube of guide sheath for treatment of peripheral bronchial lesions

[0001] The present invention relates to a guide system for treating peripheral bronchial lesions, including a side tube for saline injection.

[0002] An endoscope is a medical device that can directly observe the internal organs or the inside of a body cavity. It was invented to insert a machine into an organ that cannot be directly observed for lesions without surgery or an autopsy. The development of endoscopic equipment has greatly improved the ability of the medical profession to diagnose and treat diseases in relatively inaccessible parts of the body. Among them, a bronchoscope is used to observe the trachea and bronchi by inserting an endoscope into the airway through the mouth or nasal cavity to diagnose various respiratory diseases.

[0003] Meanwhile, a guide sheath is an auxiliary tool for bronchoscopic procedures used to diagnose lesions located in the peripheral lungs. While conventional bronchoscopy can only observe the central portion of the lung due to the tapering nature of the bronchi, the guide sheath allows access to the peripheral portion of the bronchi. Furthermore, by injecting saline solution, the entry site of the peripheral bronchus can be better visualized, and the peripheral bronchus can be dilated by the saline solution, allowing the procedural endoscope to be advanced more distally. However, because conventional guide sheaths are single-pore systems, the above procedure requires the complete removal of the guide sheath and the injection of saline solution. This repetition prolongs the procedure time, extending the patient's duration of anesthesia. Furthermore, re-entry of the guide sheath can cause air to mix in, making the peripheral bronchial entry site once again invisible. Consequently, it is difficult to precisely position the guide sheath in the desired location.

[0004] (Patent Document 0001) Patent Publication No. 10-2008-0051194 (June 10, 2008)

[0005] The present invention aims to provide a solution to the problem of saline injection when using a guide sheath as an auxiliary tool for bronchoscopic procedures.

[0006] In order to solve the above problem, the present invention provides a guide system characterized by having a side tube capable of administering a solution.

[0007] Additionally, in the present invention, the side tube may be characterized by being connected to a tube or handle portion for inserting forceps and an ultrasonic device.

[0008] In the present invention, the solution injected through the side tube may be cold saline or epinephrine.

[0009] The present invention enables efficient access to peripheral lung lesions by injecting saline solution through a side tube, which is used for peripheral bronchial dilation and access, without the need to insert and remove a guide sheath as in the past. This can improve the precision and efficiency of bronchoscopic procedures for diagnosing peripheral lung lesions, and by shortening the procedure time, patient satisfaction can be increased and quality medical services can be provided.

[0010] Next, in conventional procedures, cold saline or epinephrine could be administered to stop bleeding after removing the guide sheath and forceps for biopsy, but the side tube of the guide sheath can immediately administer a solution that helps stop bleeding immediately after biopsy, which is expected to reduce side effects and improve safety for patients after the procedure.

[0011] Figure 1 shows a guide sheath form in which a side tube (5) is connected in a Y shape to a tube for inserting forceps and an ultrasonic device.

[0012] Figure 2 shows a guide system shape in which a side tube (5) is connected to a handle part (6) in a T shape.

[0013] <Explanation of symbols>

[0014] 1 tube

[0015] 2 X-ray opaque tubes

[0016] 3 GS Stopper

[0017] 4 body

[0018] 5 side tubes

[0019] 6 Handle

[0020] 7 Church District Terminal

[0021] 8 Insert

[0022] The terminology used herein is merely used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprise" or "have" indicate the presence of a feature, number, step, operation, component, sub-component, or combination thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, sub-components, or combinations thereof.

[0023] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0024] As one embodiment of the present invention, the present invention can provide a guide sheath having a side tube capable of administering a solution.

[0025] In another embodiment of the present invention, the side tube may be connected to a tube or handle portion for inserting forceps and an ultrasonic device.

[0026] In another embodiment of the present invention, the solution injected through the side tube may be cold saline or epinephrine.

[0027] Hereinafter, the present invention will be described in more detail through specific examples. These examples are intended solely to illustrate the present invention, and it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples.

[0028] Example

[0029] The diameter of the central airway of the human body is about 1 cm, and as it enters the bronchioles, the diameter narrows to about 0.5 to 2 mm. Considering the domestic situation where bronchoscopy is not performed under general anesthesia, the position of the bronchoscope can easily change due to the patient's movement or coughing during the procedure, and it is difficult to perform the procedure while the peripheral bronchi are clearly visible. In this case, injecting saline solution or the like can make the entry site of the peripheral bronchi better visible, and the peripheral bronchi are dilated by the saline solution, allowing the procedural endoscope to be advanced slightly more distally.

[0030] The guide sheath according to the present invention is largely divided into a handle portion (6) and an insertion portion (8). Specifically, the handle portion (6) is composed of a main body (4) and a treatment tool terminal (7), the insertion portion (8) can be composed of a tube (1), an X-ray opaque tube (2), and a GS stopper (3), and the side tube (5) can be connected to a tube or handle portion for inserting forceps and an ultrasonic device. At this time, the side tube in the guide sheath can exist in a T or Y shape.

[0031] The method for accessing a lesion in the peripheral lung using the guide sheath according to the present invention proceeds in the following order. First, the guide sheath is prepared before performing a bronchoscopy, and a radial type probe having a diameter of about 1.4 mm is inserted therein to prepare it. At this time, the probe may have an elastic and bendable structure. Next, a bronchoscope having an outer diameter and a thickness of 4 mm is introduced into the bronchus or bronchiole where the lesion is expected to be present. At this time, saline solution is injected through the saline solution side tube (5) according to the present invention to make observation of the peripheral bronchi easier, and the peripheral bronchi are expanded to allow the bronchoscope to be introduced into a slightly more peripheral area. After that, the ultrasound power of the probe is turned on to confirm the lesion located in the peripheral part of the lung, and if it is judged that the lesion has been reached, the probe inside the guide system is removed and a tissue specimen forceps, etc. are inserted to collect a tissue sample, etc., and then epinephrine is injected through the side tube (5) to administer a solution that helps stop bleeding immediately after the tissue examination.

[0032] As described above, the best practice embodiments have been disclosed in the drawings and specifications. While specific terminology has been used herein, it is solely for the purpose of describing the present invention and is not intended to limit the scope of the invention as defined in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent embodiments are possible. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the appended claims.

Claims

1. A guide system characterized by having a side tube capable of administering a solution.

2. In the first paragraph, the side tube is characterized in that it is connected to a tube or handle for inserting forceps and an ultrasound device.

3. In the first paragraph, the guide system is characterized in that the solution is cold saline or epinephrine.

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