A respiratory endoscope tip protection cap

By designing a combined structure of cannula, fastening ring, fastening strap and fixing sleeve, the problem of fixation of the bronchoscope protective cap was solved, ensuring stable installation during surgery and reducing irritation to the patient's airway and the risk of surgical interruption.

CN224357571UActive Publication Date: 2026-06-16NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
Filing Date
2025-02-25
Publication Date
2026-06-16

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Abstract

The utility model relates to medical instrument technical field discloses a respiratory endoscope front end protection cap, including sleeve, one end of sleeve is equipped with transparent plate, the outer surface of another end of sleeve is equipped with fastening ring, the outer surface of fastening ring is opened with convex slot, the inside sliding connection of convex slot has fastening band, both ends of fastening band all are equipped with control block. This respiratory endoscope front end protection cap, install fastening ring to the surface of sleeve, make fastening ring and the surface of sleeve fit through the control distance between control block, then the fixed sleeve is equipped with on the surface of control block, make the position fixed of control block, thereby make the fastening state fixed of fastening ring, make sleeve can firmly fixed on the surface of endoscope, thereby prevent the displacement phenomenon in actual operation process, reduce the influence to doctor, avoid the unnecessary irritation or injury to the respiratory tract of patient simultaneously, increase operation risk.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a protective cap for the front end of a respiratory endoscope. Background Technology

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items that are used directly or indirectly on the human body, including the necessary computer software. Among them, endoscopes are inserted into the stomach through the patient's mouth or other natural orifices to observe ulcers or tumors in the stomach.

[0003] Existing protective cap designs for pulmonary endoscopes have some shortcomings, particularly in terms of fixation. These caps are mostly installed by simply slipping them onto the tip of the endoscope. While this design is simple and convenient, it is prone to displacement during actual operation. Displacement not only affects the surgeon's precision but may also cause unnecessary irritation or damage to the patient's airway, increasing surgical risks. Furthermore, if the cap falls off or shifts position during use, it may need to be readjusted or even replaced. This not only wastes valuable surgical time but may also lead to surgical interruption and cause additional psychological burden on the patient. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology lacks a stable fixing function and is prone to displacement. To address this, we propose a protective cap for the front end of a pulmonary endoscope.

[0005] To achieve the above objectives, this application adopts the following technical solution: a protective cap for the front end of a pulmonary endoscope, including a cannula, a transparent plate installed at one end of the cannula, a fastening ring sleeved on the outer surface of the other end of the cannula, a convex groove formed on the outer surface of the fastening ring, a fastening band slidably connected inside the convex groove, control blocks installed at both ends of the fastening band, and a fixing sleeve sleeved on the surface of the control block.

[0006] Preferably, both sides of the inside of the fixing sleeve are fixedly connected with protrusions, and the opposite side of the control block is provided with grooves that cooperate with the protrusions.

[0007] Preferably, a first limiting ring is provided on one side of the fastening ring, and the first limiting ring is fixedly connected to the outer surface of the sleeve; a second limiting ring is provided on the other side of the fastening ring, and the second limiting ring is fixedly connected to the outer surface of the sleeve.

[0008] Preferably, the end of the sleeve near the transparent plate has a rounded corner.

[0009] Preferably, the fastening strap and the fixing sleeve are both made of medical-grade rubber, and the control block is made of rigid plastic.

[0010] Preferably, both the sleeve and the fastening ring are made of medical-grade silicone.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, a fastening ring is installed on the surface of the cannula. By controlling the distance between the control blocks, the fastening ring is made to fit snugly against the surface of the cannula. Then, a fixing sleeve is placed on the surface of the control blocks to fix their positions, thereby fixing the tightening state of the fastening ring and ensuring that the cannula is firmly fixed to the surface of the endoscope. This prevents displacement during actual operation, reduces the impact on the doctor, and avoids unnecessary irritation or damage to the patient's airway, thus preventing increased surgical risks. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the disassembled structure of the sleeve and fastening ring of this utility model;

[0015] Figure 3 This is a schematic diagram of the fastening ring and convex groove structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the fastening strap structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the disassembled structure of the control block and the fixing sleeve of this utility model.

[0018] Legend: 1. Sleeve; 2. Transparent plate; 3. Fastening ring; 4. Convex groove; 5. Fastening band; 6. Control block; 7. Fixing sleeve; 8. Groove; 9. Protrusion; 10. First limiting ring; 11. Second limiting ring; 12. Rounded corner. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] Reference Figures 1-4As shown, this utility model provides a technical solution: a protective cap for the tip of a respiratory endoscope, including a cannula 1, a transparent plate 2 installed at one end of the cannula 1, and a fastening ring 3 fitted on the outer surface of the other end of the cannula 1. A convex groove 4 is formed on the outer surface of the fastening ring 3, and a fastening band 5 is slidably connected inside the convex groove 4. Control blocks 6 are installed at both ends of the fastening band 5, and fixing sleeves 7 are fitted on the surface of the control blocks 6. The user places the cannula 1 on the surface of the endoscope, making the transparent plate 2 contact the tip of the endoscope, and then installs the fastening ring 3 onto the surface of the cannula 1. The user then controls the movement of the cannula 1. The distance between blocks 6 causes the fastening band 5 to tighten the fastening ring 3, making the fastening ring 3 fit against the surface of the cannula 1. Then, the fixing sleeve 7 is placed on the surface of the control block 6 to fix the position of the control block 6, thereby fixing the tightened state of the fastening ring 3. This completes the installation of the cannula 1 and ensures that the cannula 1 is firmly fixed to the surface of the endoscope, thus preventing displacement during actual operation, reducing the impact on the doctor, and avoiding unnecessary irritation or damage to the patient's airway, which would increase the surgical risk.

[0021] Reference Figure 5 As shown in this embodiment: both sides of the inside of the fixed sleeve 7 are fixedly connected with protrusions 9, and the opposite side of the control block 6 is provided with grooves 8 that cooperate with the protrusions 9. Through the setting of grooves 8 and protrusions 9, when the fixed sleeve 7 is fitted onto the surface of the control block 6, the position of the fixed sleeve 7 can be limited, so that the fixed sleeve 7 is stably fixed to the surface of the control block 6.

[0022] Reference Figure 2 As shown in this embodiment: a first limiting ring 10 is provided on one side of the fastening ring 3, and the first limiting ring 10 is fixedly connected to the outer surface of the sleeve 1. A second limiting ring 11 is provided on the other side of the fastening ring 3, and the second limiting ring 11 is fixedly connected to the outer surface of the sleeve 1. By setting the first limiting ring 10 and the second limiting ring 11, the fastening ring 3 is installed in the gap between the first limiting ring 10 and the second limiting ring 11, thereby limiting the position of the fastening ring 3 and preventing the fastening ring 3 from shifting.

[0023] Reference Figure 1 As shown in this embodiment: the end of the cannula 1 near the transparent plate 2 is provided with a rounded corner 12. The rounded corner 12 makes it easier for the cannula 1 to enter the airway, and at the same time effectively avoids damage to the patient's airway.

[0024] Reference Figure 4As shown in this embodiment: the fastening band 5 and the fixing sleeve 7 are both made of medical rubber, and the control block 6 is made of rigid plastic. Medical rubber has excellent elasticity and recovery ability, and can return to its original shape after repeated stretching. This characteristic is especially important for medical supplies that need to be frequently deformed. Compared with metal materials, rigid plastic has a lower density and lighter weight, making it easier to handle and install, reducing the workload of medical staff. At the same time, rigid plastic has good rigidity, can maintain a fixed shape, and is not easy to bend or twist.

[0025] Reference Figure 1 As shown in this embodiment: both the sleeve 1 and the fastening ring 3 are made of medical-grade silicone. Medical-grade silicone has excellent biocompatibility and can be used in the human body for a long time without causing allergic reactions, inflammation or other adverse reactions. This makes it very suitable for implantable medical devices, such as pacemakers, artificial joints, catheters, etc. Moreover, medical-grade silicone is non-toxic, odorless, safe for the human body, and does not release harmful substances. It is suitable for medical products that come into direct contact with the human body.

[0026] Working principle: The user places the sleeve 1 onto the endoscope surface, ensuring the transparent plate 2 contacts the endoscope head. Then, the fastening ring 3 is installed onto the surface of the sleeve 1. By controlling the distance between the control blocks 6, the fastening band 5 is moved, tightening the fastening ring 3 and ensuring it adheres to the surface of the sleeve 1. Next, the fixing sleeve 7 is placed on the surface of the control blocks 6, fixing their position and thus maintaining the tightened state of the fastening ring 3. This completes the installation of the sleeve 1 and securely fixes it to the endoscope surface, preventing damage during operation. To prevent displacement, the groove 8 and protrusion 9 are used to limit the position of the fixing sleeve 7 after it is fitted onto the surface of the control block 6, ensuring that the fixing sleeve 7 is stably fixed to the surface of the control block 6. The first limiting ring 10 and the second limiting ring 11 are used to install the fastening ring 3 into the gap between the first limiting ring 10 and the second limiting ring 11, thereby limiting the position of the fastening ring 3 and preventing displacement. The rounded corner 12 makes it easier for the cannula 1 to enter the airway, while effectively avoiding damage to the patient's airway.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective cap for the tip of a pulmonary endoscope, comprising a cannula (1), characterized in that: A transparent plate (2) is installed at one end of the sleeve (1), and a fastening ring (3) is fitted on the outer surface of the other end of the sleeve (1). A convex groove (4) is opened on the outer surface of the fastening ring (3), and a fastening band (5) is slidably connected inside the convex groove (4). A control block (6) is installed at both ends of the fastening band (5), and a fixing sleeve (7) is fitted on the surface of the control block (6).

2. The protective cap for the front end of a pulmonary endoscope according to claim 1, characterized in that: Both sides of the inside of the fixed sleeve (7) are fixedly connected with protrusions (9), and the opposite sides of the control block (6) are provided with grooves (8) that cooperate with the protrusions (9).

3. The protective cap for the front end of a pulmonary endoscope according to claim 1, characterized in that: A first limiting ring (10) is provided on one side of the fastening ring (3), and the first limiting ring (10) is fixedly connected to the outer surface of the sleeve (1). A second limiting ring (11) is provided on the other side of the fastening ring (3), and the second limiting ring (11) is fixedly connected to the outer surface of the sleeve (1).

4. The protective cap for the front end of a pulmonary endoscope according to claim 1, characterized in that: The sleeve (1) has a rounded corner (12) at one end near the transparent plate (2).

5. A protective cap for the front end of a pulmonary endoscope according to claim 1, characterized in that: The fastening band (5) and the fixing sleeve (7) are both made of medical rubber, and the control block (6) is made of hard plastic.

6. The protective cap for the front end of a pulmonary endoscope according to claim 1, characterized in that: Both the sleeve (1) and the fastening ring (3) are made of medical-grade silicone.