Bronchoscope outer sleeve with hemostatic balloon

Abstract

The utility model discloses a bronchoscope outer sleeve with a hemostasis balloon, which comprises an outer sleeve main body, and a bronchoscope can repeatedly enter and exit in the outer sleeve main body; a hemostasis balloon is arranged outside one end of the outer cannula body, an inflation catheter is arranged at the top end of the hemostasis balloon and fixed to the side wall of the outer cannula body, and an absorption side hole is formed in the other end of the outer cannula body and connected with a suction catheter. The bronchoscope outer sleeve with the hemostasis sacculus is provided with the low-tension hemostasis sacculus, the hemostasis sacculus can block a bronchus lumen where the hemostasis sacculus is located after being expanded, good longitudinal thrust is achieved, the depth of the hemostasis sacculus can be controlled and maintained in vitro, and the situation that the hemostasis sacculus is driven to the position when the hemostasis sacculus is rapidly pulled out by a bronchoscope is avoided; in addition, bronchoscope outer sleeves with different specifications are arranged, so that the bronchoscope fixing device is adaptive to bronchoscopes with different thicknesses; and the position of a target bronchial tube can be fixed, so that the need of repeatedly going to a human operation part is reduced, and friction damage to vocal cords and oropharynx is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a bronchoscope outer sleeve with a hemostatic balloon. Background Art

[0002] Cryopulmonary biopsy is of great value for diagnosing diffuse lung diseases because the lung tissue removed is relatively large. However, bleeding after biopsy is the most worrying surgical complication. The current plan to prevent bleeding is mainly an occluding balloon catheter. Generally, the occluding balloon catheter is hung on the distal end of the bronchoscope insertion part after being tightened by a silk thread. After the bronchoscope reaches the target bronchus, it is released freely. The occluding balloon catheter is left idle in the target bronchus, and the bronchoscope enters the distal end for the cryopulmonary biopsy operation. While quickly pulling out the bronchoscope, the assistant fixes the occluding balloon catheter and inflates it, so that the balloon expands to achieve the purpose of hemostasis.

[0003] However, the existing method of using balloon dilation to stop bleeding has the following problems: 1. Due to the technical requirements of frozen lung biopsy, the bronchoscope must be pulled out quickly. The distal end of the bronchoscope carries a certain amount of frozen lung tissue, which can easily drive the idle blocking balloon catheter, causing the catheter position to change. After inflation, it often cannot block the biopsied bronchus, which brings great risks to the surgical operation; 2. After the bronchoscope is pulled out, the operator cannot know whether there is bleeding in the cavity, whether the position of the blocking balloon is correct, and whether it can effectively stop bleeding. It must wait until the bronchoscope can enter again to determine, and the safety and controllability of the whole process are extremely poor; 3. In case of bleeding, if the distal position of the blocking balloon catheter is offset, it will be extremely risky to inject hemostatic drugs into the blocked distal bronchus through the inner hole of the catheter: not only can it not effectively stop bleeding, but it will cause complications such as increased blood pressure and increase bleeding. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is that the existing hemostasis method requires the bronchoscope to be pulled out quickly, which can easily drive the idle blocking balloon catheter and change the position of the catheter, making the surgical operation extremely risky; in the time after the bronchoscope is pulled out, the operator cannot know whether there is bleeding in the cavity, whether the position of the blocking balloon is correct, whether it can effectively block the bleeding, etc., and must wait until the bronchoscope can be re-entered to determine, and the safety and controllability of the whole process are extremely poor; and once blood gushes out of the bronchus, when the position of the catheter end has shifted before the balloon is opened, the injected hemostatic drug will not be able to enter the actual bleeding area, not only will it fail to play a hemostatic role, it may even cause adverse reactions such as increased blood pressure, and worsen the bleeding situation. Therefore, the utility model provides a bronchoscope overtube with a hemostatic balloon, which has a low-tension hemostatic balloon. When the hemostatic balloon is expanded, it can block the bronchial lumen and has good longitudinal thrust. Its depth can be controlled and maintained outside the body to avoid being moved when the bronchoscope is quickly pulled out. In addition, bronchoscope overtubes of different specifications are provided to be suitable for bronchoscopes of different thicknesses. The target bronchus can be fixed, which is beneficial to reduce the need for repeated re-operation of the operating site and reduce friction damage to the vocal cords and oropharynx.

[0005] To achieve the above-mentioned purpose, the utility model provides a bronchoscope outer cannula with a hemostatic balloon, comprising an outer cannula body, and the bronchoscope is configured to be able to repeatedly enter and exit the outer cannula body; a hemostatic balloon is arranged on the outside of one end of the outer cannula body, and an inflation catheter is arranged on the top of the hemostatic balloon, and the inflation catheter is fixed on the side wall of the outer cannula body; the other end of the outer cannula body is provided with an absorption side hole, which is connected to the suction catheter.

[0006] Furthermore, the hemostatic balloon is configured as an inflatable balloon, and the hemostatic balloon is tightly attached to the outer wall of the outer sleeve body when in a closed state.

[0007] Furthermore, the hemostatic balloon is in a ring shape after being inflated, surrounding the outer sleeve body.

[0008] Furthermore, the outer tube body is 2 cm shorter than the entire length of the bronchoscope insertion portion.

[0009] Furthermore, the outer sleeve body is provided with a variety of sizes to be adapted to bronchoscopes of different thicknesses.

[0010] Furthermore, a hand-held anti-slip portion is also provided at the other end of the outer sleeve body, and the hand-held anti-slip portion is arranged to surround or partially surround the outer sleeve body.

[0011] Furthermore, the outer sleeve body is configured to use hard silicone.

[0012] Furthermore, the hemostatic balloon may be in one of the following shapes after being inflated: spherical, webbed, or winged.

[0013] Technical Effects

[0014] The utility model provides a bronchoscope overtube with a hemostatic balloon, which is helpful for accurate hemostasis during traumatic operations such as cryo-lung biopsy, and improves the safety of operation; effectively reduces the displacement and in-situ occlusion probability caused by the removal of the bronchoscope; and can guide the bronchoscope to enter the distal end for accurate and sufficient hemostasis even when the field of vision has been lost during bleeding. The utility model provides a bronchoscope overtube with a hemostatic balloon, which can fix the target bronchus position, helps to reduce the need for repeated confirmation of the operation site, improves surgical efficiency, and reduces damage to the oropharynx and vocal cords; the utility model provides a bronchoscope overtube with a hemostatic balloon, which uses hard silicone, has good biocompatibility, and is a supporting device for bronchoscopes, and is suitable for bronchoscopes of different models.

[0015] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a bronchoscope outer tube with a hemostatic balloon in a preferred embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of a bronchoscope outer tube with a hemostatic balloon according to another preferred embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] In the following description, specific details such as specific internal procedures and techniques are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0020] like Figure 1As shown, the embodiment of the utility model provides a bronchoscope outer sleeve with a hemostatic balloon, including an outer sleeve body 1, and the bronchoscope is configured to be able to repeatedly enter and exit the outer sleeve body 1; a hemostatic balloon 2 is arranged outside one end 1-1 of the outer sleeve body, and the hemostatic balloon 2 is 2mm away from the terminal end of the outer sleeve body, and an inflation catheter 3 is arranged at the top of the hemostatic balloon 2, which can inflate and evacuate the hemostatic balloon 2, and the inflation catheter is fixed on the side wall of the outer sleeve body, and the other end 1-2 of the outer sleeve body is provided with an absorption side hole 4, which is connected to the suction catheter. The inner diameter of the outer sleeve body in this embodiment is adapted to bronchoscopes with outer diameters of 2.8, 3.0, 3.5 and 4.9mm; the inner diameter of the outer sleeve body is 1mm wider than the outer diameter of the adapted bronchoscope.

[0021] The hemostatic balloon 2 is set as an inflatable balloon, and is a hypotonic balloon. When the hemostatic balloon is in a closed state, it is close to the outer wall of the outer tube body. The hemostatic balloon can expand in an inner diameter range of 2-5mm, and its expansion degree is determined by the balloon air pressure. The catheter connected to the balloon is connected to the syringe, and bidirectional transportation can be achieved, including pumping and inflating. The balloon air pressure is determined by the amount of gas pumped in, so that the pressure in the balloon can be controlled. After the hemostatic balloon is inflated, it is annular and surrounds the outer tube body. After the balloon is inflated and expanded, the cavity between the inner bronchus and the outer tube can be blocked. If blood flows out of the lumen after biopsy, due to the blocking effect of the balloon, the blood will not flow to other bronchi to cause airflow obstruction, but can be drained to the outside of the body by the opening or absorption side hole of the outer tube body. At this time, the assistant can judge whether there is severe bleeding by observing whether there is blood flowing out of the sleeve. If there is, the bronchoscope can be extended along the outer tube body, and even in the absence of vision, the hemostatic drug can still be injected into the correct bronchial opening.

[0022] The outer tube body is 2 cm shorter than the entire length of the bronchoscope insertion portion.

[0023] Furthermore, the outer sleeve body is provided with a variety of sizes to adapt to bronchoscopes of different thicknesses. The bronchoscope can be repeatedly inserted and removed from the sleeve, which is beneficial for accurate hemostasis and fixing the biopsy position, avoiding repositioning each time the bronchoscope is inserted, and also avoiding friction damage to the oropharynx and vocal cords caused by repeated insertion and removal of the bronchoscope. A bronchoscope outer sleeve with a hemostatic balloon in this embodiment can be inserted into a deeper and thinner bronchus along with the adapted bronchoscope, and the balloon can be fixed in the bronchus after expansion.

[0024] like Figure 2 As shown, in another preferred embodiment, a hand-held anti-slip portion 5 is further provided at the other end of the outer sleeve body, and the hand-held anti-slip portion is arranged to surround or partially surround the outer sleeve body.

[0025] The outer tube body is configured to use hard silicone, which has good longitudinal thrust, and can control and maintain its depth outside the body to avoid being displaced when the bronchoscope is quickly pulled out.

[0026] After the blood balloon is inflated, it can be in a spherical shape, a webbed shape, or a winged shape.

[0027] The utility model is a bronchoscope outer cannula with a hemostatic balloon, which is an external cannula that can be covered over the entire length of the bronchoscope insertion part. The outer cannula body is attached with a hemostatic balloon, which is inflated and evacuated in vitro through an inflation catheter. After the balloon is inflated, it is used to block the outer cavity of the cannula in the bronchus. It can be used not only for cryo-lung biopsy, but also for transbronchial lung biopsy under transverse ultrasound guidance, intracavitary lung biopsy and other scenarios. The utility model is a bronchoscope outer cannula with a hemostatic balloon, which can be set for single use or repeatedly disinfected and used.

[0028] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A bronchoscope overtube with a hemostatic balloon, characterized in that: It comprises an outer sleeve body, in which a bronchoscope is arranged to be able to repeatedly enter and exit; a hemostatic balloon is arranged on the outside of one end of the outer sleeve body, an inflation catheter is arranged on the top of the hemostatic balloon, and the inflation catheter is fixed on the side wall of the outer sleeve body; the other end of the outer sleeve body is arranged with an absorption side hole, which is connected to a suction catheter.

2. A bronchoscope overtube with a hemostatic balloon as claimed in claim 1, characterized in that: The hemostatic balloon is configured as an inflatable balloon, and in a closed state, the hemostatic balloon is tightly attached to the outer wall of the outer sleeve body.

3. A bronchoscope overtube with a hemostatic balloon as claimed in claim 2, characterized in that: The hemostatic balloon is annular after being inflated, surrounding the outer sleeve body.

4. A bronchoscope overtube with a hemostatic balloon as claimed in claim 1, characterized in that: The outer tube body is 2 cm shorter than the entire length of the bronchoscope insertion portion.

5. A bronchoscope overtube with a hemostatic balloon as claimed in claim 1, characterized in that: The outer sleeve body is provided with a variety of sizes and is suitable for bronchoscopes of different thicknesses.

6. A bronchoscope overtube with a hemostatic balloon as claimed in claim 1, characterized in that: The other end of the outer sleeve body is also provided with a hand-held anti-slip portion, and the hand-held anti-slip portion is arranged to surround or partially surround the outer sleeve body.

7. A bronchoscope overtube with a hemostatic balloon as claimed in claim 1, characterized in that: The outer sleeve body is configured to use hard silicone.

8. A bronchoscope overtube with a hemostatic balloon as claimed in claim 2, characterized in that: The hemostatic balloon may be in a spherical shape, a webbed shape, or a winged shape after being inflated.

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