Hemostatic endoscopic balloon device capable of ensuring front field of view of bronchoscope and suctioning blood when hemostatic balloon is inflated

Abstract

The present invention relates to a hemostatic balloon device for a bronchoscope, the device which, even when a hemostatic balloon is being inflated or has been inflated, is capable of continuously suctioning blood generated in the bronchial tubes since there is no interference with an operation passage of a bronchoscope, enabling a smooth operation by not obstructing a front field of view for a bronchoscope camera, and checking whether the balloon is normally inflated within the lateral field of view, and which comprises: a support member supported by the tip portion of the bronchoscope in a shape of encompassing the outer peripheral surface of the tip portion of the bronchoscope; and a hemostatic balloon which has a forwardly protruding inflation part provided in a shape of encompassing the outer peripheral surface of the support member so as to inflate toward the front of the support member and protrude in a ring shape when air is supplied, and has, at the center of the forwardly protruding inflation part, an accommodation hole that communicates with the support member and has an inlet opened forward, and thus, even when the hemostatic balloon is inflated such that the tip portion of the bronchoscope is accommodated in the accommodation hole, the hemostatic balloon can stop bleeding by making localized contact with the bronchial tubes by means of the forwardly protruding inflation part of the hemostatic balloon, without interfering with the bronchoscope camera and the operation passage through the opened inlet of the accommodation hole.

Description

Endoscopic hemostatic balloon device that secures the anterior view of the bronchoscope and enables blood aspiration during hemostatic balloon inflation

[0001] The present invention relates to a hemostatic balloon device for a bronchoscope, and more particularly, to a hemostatic balloon device for a bronchoscope that can continuously suck blood generated in the bronchial tube without interfering with the working passage of the bronchoscope during the inflation process or in the inflated state of the hemostatic balloon, and that can work smoothly without obstructing the front view of the bronchial endoscope camera, while allowing confirmation of normal balloon inflation within the lateral field of view.

[0002] Bronchoscopy is an important diagnostic tool in the medical field that greatly helps in the early detection and accurate diagnosis of bronchial diseases. It is mainly used to observe and diagnose the inside of the bronchial tubes.

[0003] This device typically consists of a tube made of flexible optical fiber, with a camera attached to the end of the tube. The flexible fiber optic element then transmits light from the camera into the bronchial tube, allowing medical professionals to observe the interior in real time.

[0004] Additionally, the bronchoscope includes an illumination system that illuminates the bronchial walls, enabling detailed observation. This plays a crucial role in helping doctors detect and diagnose abnormalities in the bronchial tubes. Furthermore, a camera attached to the end of the endoscope captures images of the inside of the bronchial tubes and transmits them to a screen. This allows medical professionals to monitor and diagnose the condition of the bronchial tubes in real time.

[0005] Bronchial endoscopy performed using a bronchoscope like this always carries the risk of massive bleeding that threatens the patient's life, and a representative physical hemostatic tool to deal with this is a hemostatic balloon catheter inserted through the bronchoscope (10) working channel as shown in Fig. 1.

[0006] However, according to the prior art, as soon as the catheter (21) is inserted from outside the human body into the working passage of the bronchoscope (10), it occupies the working passage, leaving the blood generated in the bronchial tubes without being sucked, which causes the camera's field of view to be blocked by the blood, preventing the camera from functioning properly. Therefore, it is difficult to identify the exact site of hemostasis at the moment when the catheter (21) exits the working passage of the bronchoscope (10) and expands the balloon (20), and it is also difficult to evaluate whether the balloon is properly performing hemostasis. In addition, the flowed out blood causes the patient to cough and impairs the airflow in the bronchial tubes, which poses serious concerns about patient safety. Therefore, even experienced surgeons are having difficulty using the hemostatic balloon (20) catheter (21).

[0007] Accordingly, the present invention has been proposed to solve the above-mentioned problems of the related art, and the purpose of the present invention is to provide a hemostatic balloon device for a bronchoscope that can continuously suck blood generated in the bronchial tube without interfering with the working passage of the bronchoscope during the inflation process or in the inflated state of the hemostatic balloon, and that can work smoothly without obstructing the front view of the bronchial endoscope camera, while allowing confirmation of normal balloon inflation within the lateral view range.

[0008] In order to achieve the above object, the endoscopic balloon device for hemostasis according to the technical idea of ​​the present invention comprises: a support member that is supported by the distal end of the endoscope in a form that wraps around the outer circumference of the distal end of the endoscope; a hemostatic balloon that is installed in a form that surrounds the outer circumference of the support member and forms a forwardly protruding expansion portion that protrudes forward of the support member when air is supplied thereto and protrudes in a ring shape, and a receiving hole having an entrance that is open forward and communicates with the support member is formed at the center of the forwardly protruding expansion portion; and a technical feature of the configuration is that even when the hemostatic balloon is inflated and the distal end of the endoscope is received in the receiving hole, the hemostatic balloon can locally contact the bronchus and cause hemostasis through the forwardly protruding expansion portion of the hemostatic balloon without interfering with the camera and the working passage of the endoscope through the open entrance of the receiving hole.

[0009] Here, when the hemostatic balloon is in contact with the bronchial tube and further air is injected while the external expansion is limited, the forward protruding expansion portion expands inwardly into the receiving hole, and a part of it enters the lateral field of view of the camera, thereby allowing the expansion of the hemostatic balloon to be confirmed.

[0010] In addition, it may be characterized in that at least a part of the area corresponding to the inner surface of the receiving hole of the above-mentioned forward protrusion expansion portion is formed with a thinner thickness than other areas so as to protrude and expand inwardly of the receiving hole and enter within the lateral field of view of the camera, thereby enabling confirmation of whether the hemostatic balloon is inflated.

[0011] In addition, the above-mentioned forward protrusion expansion part may be characterized in that protrusions are formed on the inner surface of the receiving hole so that it is possible to check whether the hemostatic balloon is inflated when it comes within the lateral field of view of the camera.

[0012] In addition, it may be characterized in that a hemostatic layer is formed by applying a hemostatic agent to the outer surface of the forward protrusion expansion portion of the hemostatic balloon.

[0013] In addition, the support member may be characterized by being provided as a tubular member that can be mounted by inserting the tip of the endoscope inside.

[0014] Additionally, the hemostatic balloon may be characterized by being made of thermoplastic polyurethane.

[0015]

[0016] *In addition, both the support member and the hemostatic balloon are made of thermoplastic polyurethane, and the support member may be characterized by having a higher hardness value than the hemostatic balloon.

[0017] In addition, the hemostatic balloon may be formed by having one end of a flexible balloon tube joined in a manner that wraps around the outer surface of the leading end of the support member, and then having the other end of the balloon tube reversed to the rear of the support member and joined to the outer surface of the support member.

[0018] In addition, when the other end joint of the balloon tube is reversed to form the hemostatic balloon, a margin is left in front of the support member so that a forward-protruding expansion portion that protrudes forward of the support member when the hemostatic balloon is inflated is formed.

[0019] In addition, the outer surface of the support member may be characterized in that an air discharge hole is formed in an area between the points where one end joint and the other end joint of the balloon tube are respectively joined, and an air injection tube is provided connected to the air discharge hole so as to inject air into the hemostatic balloon.

[0020] In addition, the peripheral cross-section of the support member may be formed with a deviation so that the thickness gradually increases toward the point where the air discharge hole is formed, and a communication hole into which an air injection tube is fitted may be formed along the longitudinal direction of the support member in the cross-section on the side where the air discharge hole is formed.

[0021] Additionally, the endoscope may be characterized as being a bronchoscope.

[0022] Meanwhile, the endoscopic system of the present invention is characterized in its technical configuration by including an endoscope; and the endoscopic balloon device for hemostasis described above.

[0023] Here, it may be characterized by further including a display that outputs an image captured by the camera of the endoscope to a screen.

[0024] The hemostatic endoscopic balloon device according to the present invention can continuously suction blood generated in the bronchial tube without interference with the working passage of the bronchoscope during the process of inflating the hemostatic balloon or even in the inflated state, thereby enabling safer examination and tissue collection.

[0025] In addition, the present invention enables smooth operation without obstructing the front view of the bronchial endoscope camera, while allowing confirmation of normal balloon inflation within the lateral view range.

[0026] Figure 1 is a reference diagram for explaining the prior art.

[0027] Figure 2 is a diagram showing the state of use of an endoscopic balloon device for hemostasis according to an embodiment of the present invention.

[0028] Figure 3 is a perspective view of an endoscopic balloon device for hemostasis according to an embodiment of the present invention.

[0029] Figure 4 is a cross-sectional view of the main components of an endoscopic balloon device for hemostasis according to an embodiment of the present invention.

[0030] Figure 5 is a cross-sectional view of a support member in an endoscopic balloon device for hemostasis according to an embodiment of the present invention.

[0031] Figure 6 is a plan view of an endoscopic balloon device for hemostasis according to an embodiment of the present invention.

[0032] Figure 7 is a cross-sectional view along AA of Figure 6.

[0033] FIG. 8A and FIG. 8B are a series of reference drawings for explaining the gradual inflation operation of a hemostatic balloon in an endoscopic hemostatic balloon device according to an embodiment of the present invention.

[0034] Figure 9 is a cross-sectional view of the main components of an endoscopic balloon device for hemostasis according to a first modified embodiment of the present invention.

[0035] Figure 10 is a cross-sectional view of the main components of an endoscopic balloon device for hemostasis according to a second modified embodiment of the present invention.

[0036] <Explanation of symbols>

[0037] 110: Support member 120: Hemostatic balloon

[0038] 120a: Receiving hole 120b: Forward protrusion expansion part

[0039] 130: Air inlet tube 200: Bronchoscope

[0040] Hereinafter, an endoscopic balloon device for hemostasis according to embodiments of the present invention will be described in detail with reference to the attached drawings. The present invention may be modified in various ways and may take various forms, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, but it should be understood that the invention includes all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing each drawing, similar reference numerals are used to indicate similar components. In the attached drawings, the dimensions of structures are illustrated in an enlarged form for clarity of the present invention or in a reduced form for understanding the schematic configuration.

[0041] Furthermore, while terms such as first and second may be used to describe various components, these components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. 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 the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined in this application.

[0042] <Example>

[0043] FIG. 2 is a diagram showing a state of use of an endoscopic balloon device for hemostasis according to an embodiment of the present invention, FIG. 3 is a perspective view of an endoscopic balloon device for hemostasis according to an embodiment of the present invention, FIG. 4 is a cross-sectional view of a main component in an endoscopic balloon device for hemostasis according to an embodiment of the present invention, FIG. 5 is a cross-sectional view of a support member in an endoscopic balloon device for hemostasis according to an embodiment of the present invention, FIG. 6 is a plan view of an endoscopic balloon device for hemostasis according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line AA of FIG. 6.

[0044] An endoscopic balloon device for hemostasis according to an embodiment of the present invention includes a support member (110), a hemostatic balloon (120), and an air injection tube (130) as main components, and as shown in FIG. 2, the hemostatic balloon (120) does not obstruct the front view of the bronchoscope (200) camera (201) even when inflated, so that smooth operation is possible, while it is possible to confirm whether the balloon has been normally inflated within the lateral field of view, and there is no interference with the working passage (202), so that blood generated within the bronchial tube can be continuously sucked.

[0045] Hereinafter, the endoscopic balloon device for hemostasis according to an embodiment of the present invention will be described in detail, focusing on each of the above components.

[0046] The above hemostatic balloon (120) functions to suppress hemostasis by contacting and compressing the bleeding site inside the bronchial tube or its proximal part. The hemostatic balloon (120) is installed in a form surrounding the outer circumference of the support member (110), which is a tubular member, and when air is supplied, it expands forward of the support member (110), as shown in FIG. 3, forming a forwardly protruding expanded portion (120b) that protrudes in a ring shape. A receiving hole (120a) having an entrance that is open forward while communicating with the support member (110) is formed at the center of the forwardly protruding expanded portion (120b) of the hemostatic balloon (120).

[0047] The above hemostatic balloon (120) is provided on the outer surface of the support member (110) by inversion of the balloon tube (120c) as follows in order to form a forward-protruding expansion portion (120b) in the inflated state. That is, as can be confirmed with reference to the cross-sectional view of Fig. 4 showing the inflated state of the hemostatic balloon (120), the hemostatic balloon (120) is formed by joining one end of the elastic balloon tube (120c) in a form that wraps around the outer surface of the front end of the support member (110), and then the other end of the balloon tube (120c) is inverted to the rear of the support member (110) and then joined to the outer surface of the support member (110). Here, when the other end joint (122) of the balloon tube (120c) is inverted, a margin (120ba) is left in front of the support member (110) (see the deflated state of the hemostatic balloon (120) in FIG. 8a) so that a forward-protruding expansion portion (120b) that protrudes forward of the support member (110) is formed when the hemostatic balloon (120) is inflated. In this way, the margin (120ba) for forming the forward-protruding expansion portion (120b) is partially protruded in front of the support member (110) when the hemostatic balloon (120) is not inflated, but it is preferable to make it as invisible as possible to the endoscopic camera so as not to interfere with the bronchial endoscopy operation when the balloon is not inflated.

[0048] In this way, when the hemostatic balloon (120) is supplied with air in a deflated state as shown in FIG. 8a, it gradually expands forward of the support member (110) as shown in FIG. 8b and protrudes in a ring shape to form a forward-protruding expansion portion (120b). According to this configuration, even if the tip of the bronchoscope (200) is accommodated in the receiving hole (120a) of the forward-protruding expansion portion (120b), it is possible to locally contact the bronchial bleeding site or its proximal portion through the forward-protruding expansion portion (120b) without interfering with the camera (201) and working passage (202) of the bronchoscope (200) through the open entrance of the receiving hole (120a) to achieve hemostasis.

[0049] Here, as shown in the enlarged portion of FIG. 4, the outer surface of the forward-protruding expansion portion (120b) of the hemostatic balloon (120) is provided with a hemostatic layer (125) formed by applying a hemostatic agent. Thus, when the forward-protruding expansion portion (120b) contacts and presses the bronchial bleeding site or its proximal portion, the pharmacological action of the hemostatic agent is added, enabling more rapid hemostasis.

[0050] Another thing to note is that when the hemostatic balloon (120) is inflated, the forward protruding expansion portion (120b) that protrudes forward in a ring shape does not completely block the forward view of the camera (201) and light (203), but part of it comes within the lateral view range, allowing for confirmation of expansion. That is, referring to FIGS. 2 and 8b, the hemostatic balloon (120) is gradually expanded outward from the initially deflated state ((a) of FIG. 2, A1 of FIG. 8) ((b) of FIG. 2, A2 of FIG. 8) to a state in which it is in close contact with the bronchial tube ((c) of FIG. 2, A3 of FIG. 8), and when more air is injected here, the hemostatic balloon (120) is pushed toward the receiving hole (120a) in the inner central portion while its outward expansion is restricted by the bronchial tube and becomes an expanded state ((d) of FIG. 2, A4 of FIG. 8), so that it clearly enters the lateral field of view of the bronchoscope (200) camera (201). As a result, it is possible to continuously check whether the hemostatic balloon (120) is normally inflated, and if a problem occurs, action can be taken quickly.

[0051] Even if the hemostatic balloon (120) is not in a state where it is in close contact with the bronchial tube and its outward expansion is not restricted as described above, as in the first modified embodiment illustrated in FIG. 9, at least a portion of the inner surface (120ca) of the receiving hole (120a) of the forward-protruding expanding portion (120b) is formed with a thinner thickness than other portions so as to protrude and expand inwardly from the receiving hole (120a), thereby allowing the protruded and expanded portion (B1) to come within the lateral field of view of the camera (201), thereby enabling confirmation of whether the hemostatic balloon (120) is inflated. In addition, as in the second modified embodiment illustrated in FIG. 10, protrusions (120bb) are formed on the inner surface of the receiving hole (120a) of the forward-protruding expanding portion (120b) so as to come within the lateral field of view of the camera (201), thereby enabling confirmation of whether the hemostatic balloon (120) is inflated.

[0052] Here, the hemostatic balloon (120) is preferably made of soft and thin thermoplastic polyurethane (TPU) having a hardness of Shore 60DA, unlike ordinary rubber balloons. This makes the balloon more human-friendly while having higher heat transfer performance and durability than ordinary rubber balloons.

[0053] The above-mentioned support member (110) serves to support the hemostatic balloon (120) by wrapping around the outer circumferential surface of the distal end of the bronchoscope (200). To this end, the support member (110) is provided as a tubular member that can be fitted into an internal fitting hole (110a) by fitting the distal end of the bronchoscope (200). The circumferential cross-section of the support member (110) is formed with a deviation so that the thickness gradually becomes thicker toward the point where the air discharge hole (111a) is formed, as illustrated in FIG. 5. A communication hole (111) is formed along the longitudinal direction of the support member (110) in the thicker cross-section on the side where the air discharge hole (111a) is formed, into which an air injection tube (130) is fitted. In this way, the cross-section where the communication hole (111) is formed in the support member (110) is formed relatively thick, but the load burden caused by the support member (110) can be minimized by having a deviation configuration so that the thickness gradually becomes thinner toward the opposite side. The support member (110) is made of Pellethane, a type of thermoplastic polyurethane (TPU). TPU is a polymer material that is relatively lightweight, flexible, durable, and has been recognized for its biocompatibility, so it is suitable as a material for the support member (110). In the case of the support member (110), it is preferable to use a material with a hardness of Shore 90A so that it has a higher hardness than the hemostatic balloon (120).

[0054] The air discharge hole (111a) formed on the outer surface of the above-mentioned support member (110) is located in the area between the points where one end joint (121) and the other end joint (122) of the balloon tube are respectively joined, so that air can be injected into the hemostatic balloon (120) through the air discharge hole (111a).

[0055] The above air injection tube (130) has one end fitted into a communication hole (111) at the rear of the support member (110), and the other end is connected to a hub (140) for air supply.

[0056] Meanwhile, the endoscopic balloon device for hemostasis according to the embodiment of the present invention described above constitutes a bronchoscope (200) system including a bronchoscope (200) and a display that outputs an image captured by a camera (201) of the bronchoscope (200) to a screen.

[0057] While preferred embodiments of the present invention have been described above, the present invention is susceptible to various modifications, variations, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

Claims

1. A support member that is supported by the distal end of the endoscope in a form that wraps around the outer surface of the distal end of the endoscope; A hemostatic balloon, which is installed in a form surrounding the outer surface of the support member and, when supplied with air, expands forward of the support member to form a forward-protruding expansion portion that protrudes in a ring shape, and has a receiving hole formed in the center of the forward-protruding expansion portion that communicates with the support member and has an entrance that opens forward; including, An endoscopic balloon device for hemostasis characterized in that even when the hemostatic balloon is inflated and the tip of the endoscope is accommodated in the accommodation hole, the hemostasis can be caused by local contact with the bronchial tube through the forwardly protruding expansion portion of the hemostatic balloon without interfering with the camera and working passage of the endoscope through the open entrance of the accommodation hole.

2. In paragraph 1, An endoscopic balloon device for hemostasis characterized in that when the hemostatic balloon is in contact with the bronchial tube and further air is injected while the external expansion is limited, the forward protruding expansion portion expands inwardly into the receiving hole, and a part of it enters the lateral field of view of the camera, thereby allowing the expansion of the hemostatic balloon to be confirmed.

3. In paragraph 1, An endoscopic balloon device for hemostasis characterized in that at least a portion of the inner surface of the receiving hole of the above-mentioned forward protrusion expansion portion is formed with a thinner thickness than other portions, so as to protrude and expand inwardly into the receiving hole and enter within the lateral field of view of the camera, thereby enabling confirmation of whether the hemostasis balloon is inflated.

4. An endoscopic balloon device for hemostasis, characterized in that the front protrusion expansion part has protrusions formed on the inner surface of the receiving hole so that it can be checked whether the hemostasis balloon is inflated when it comes within the lateral field of view of the camera.

5. In paragraph 1, An endoscopic balloon device for hemostasis, characterized in that a hemostatic layer is formed by applying a hemostatic agent to the outer surface of the forward protrusion expansion portion of the hemostatic balloon.

6. In paragraph 1, An endoscopic balloon device for hemostasis, characterized in that the above support member is provided as a tubular member that can be fitted inside the tip of the endoscope.

7. In paragraph 6, An endoscopic balloon device for hemostasis, characterized in that the above hemostatic balloon is made of thermoplastic polyurethane.

8. In paragraph 6, An endoscopic balloon device for hemostasis, wherein the support member and the hemostatic balloon are both made of thermoplastic polyurethane, and the support member has a higher hardness value than the hemostatic balloon.

9. In paragraph 6, The above hemostatic balloon is a hemostatic endoscopic balloon device characterized in that one end of a flexible balloon tube is joined in a manner that wraps around the outer surface of the front end of the support member, and the other end of the balloon tube is turned backwards and joined to the outer surface of the support member.

10. In paragraph 9, An endoscopic balloon device for hemostasis, characterized in that when the other end joint of the balloon tube is inverted to form the hemostatic balloon, a margin is left in front of the support member so that a forwardly protruding expanded portion is formed that protrudes forward of the support member when the hemostatic balloon is inflated.

11. In paragraph 6, An endoscopic balloon device for hemostasis, characterized in that an air discharge hole is formed in an area between the points where one end joint and the other end joint of the balloon tube are respectively joined on the outer surface of the support member, and an air injection tube is provided connected to the air discharge hole so as to inject air into the hemostasis balloon.

12. In paragraph 11, An endoscopic balloon device for hemostasis, characterized in that the circumferential cross-section of the above-mentioned support member is formed with a deviation so that the thickness gradually increases toward the point where the air discharge hole is formed, and a communication hole is formed along the longitudinal direction of the support member in the cross-section on the side where the air discharge hole is formed, into which an air injection tube is fitted.

13. In paragraph 1, An endoscopic balloon device for hemostasis, characterized in that the above endoscope is a bronchoscope.

14. Endoscopy; and Endoscopic balloon device for hemostasis of the first paragraph; An endoscopic system comprising:

15. In paragraph 14, An endoscope system further comprising a display that outputs images captured by the camera of the endoscope to a screen.

Images