Endoscopic negative pressure suction set with clear field of view
By designing a negative pressure suction kit that provides clear endoscopic vision, and utilizing a main cap and a secondary cap structure to isolate the endoscope lens from the digestive tract, and by setting up irrigation tubes in parallel, the problem of blurred vision and operational difficulties during endoscopic examinations is solved, achieving the effect of clear examination and simultaneous irrigation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU FIRST PEOPLES HOSPITAL
- Filing Date
- 2025-05-07
- Publication Date
- 2026-07-24
AI Technical Summary
During endoscopic examinations, gastrointestinal bleeding can cause blood clots to accumulate and obstruct vision. Existing negative pressure suction devices are complex in structure and difficult to perform flushing and examination operations simultaneously.
Design a negative pressure suction kit that provides clear endoscopic vision, including a main end cap and a secondary end cap. The flushing tubes are flexibly connected to the endoscope and arranged in parallel to isolate the endoscope lens from the digestive tract and perform flushing operations during the examination.
It improves the clarity of endoscopic examinations, prevents blurred vision, and allows for simultaneous irrigation and examination during treatment, expanding the field of vision.
Smart Images

Figure CN224540183U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and more specifically, relates to a negative pressure suction kit that provides clear endoscopic vision. Background Technology
[0002] Endoscopy is a commonly used medical examination method. It allows direct observation of the examined area and enables further diagnostic clarification through pathological biopsies and cytological examinations of suspicious lesions. It is the preferred examination method for upper gastrointestinal tract diseases. During an endoscopy, an endoscope is inserted through the patient's mouth into the esophagus, stomach, and duodenum. A strong light source is used, which is then deflected by optical fibers, allowing medical personnel to clearly observe the health status of various parts of the upper gastrointestinal tract from the other end.
[0003] For endoscopic examinations to clearly visualize the digestive tract mucosa, the area being examined must be clean, free of food and blood clots. However, patients with upper gastrointestinal bleeding often have large amounts of blood clots during endoscopic treatment. These clots can obstruct the view of the endoscope, making it difficult to see the bleeding site and affecting diagnostic results. Although the working channel of the endoscope can be connected to a negative pressure device to flush out blood clots, it is not possible to perform both flushing and examination simultaneously during the treatment process.
[0004] For example, the gastroscopy auxiliary cannula disclosed in patent document CN201820841473.8, filed on June 1, 2018, uses a fastening device to fix the gastroscope and the negative pressure suction tube together. However, the fastening device includes a fastening seat, a fastening nut, and a fastening plate that are connected to each other. During installation, the negative pressure suction tube and the gastroscope need to be pressed together. Its structure is relatively complex and there are many steps involved in the installation process. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a negative pressure suction kit with clear endoscopic vision. It can prevent the endoscope lens from directly adhering to the inner wall of the digestive tract during endoscopic examination, avoid blurring of the endoscopic vision, and improve the clarity of the examination. At the same time, by setting up flushing tubes in parallel, it is convenient to flush blood clots during the examination, further expanding the endoscopic field of vision.
[0006] This utility model discloses a negative pressure suction kit for clear endoscopic vision, which includes an end cap body and an installation component; the end cap body includes a main end cap and a secondary end cap arranged on the left and right sides; the main end cap and the secondary end cap are connected by a connecting rib; the endoscope is snapped onto the upper end of the main end cap, and the flushing tube is snapped onto the upper end of the secondary end cap; the endoscope and the flushing tube are connected to each other by the installation component.
[0007] As a further improvement of this utility model, the main end cap includes an endoscope channel, a first port, and a connecting sleeve; the endoscope channel is fixedly disposed on the upper side of the first port, the endoscope channel and the first port are coaxially disposed, and the endoscope channel and the first port are connected; the lower end of the connecting sleeve is elastically sleeved on the outer side of the endoscope channel, and the lower end of the endoscope is sleeved inside the connecting sleeve.
[0008] As a further improvement of this utility model, the inner diameter of the first port decreases proportionally from top to bottom, and the outer wall of the first port is inclined towards the center of the first port.
[0009] As a further improvement of this utility model, the connecting sleeve is made of silicone material.
[0010] As a further improvement of this utility model, the endoscope channel and the first port are made of rigid material.
[0011] As a further improvement of this utility model, the secondary end cap includes a flushing channel and a second port; the flushing channel is fixedly disposed on the upper side of the second port, the flushing channel and the second port are coaxially disposed, and the flushing channel and the second port are connected; the lower end of the flushing pipe is elastically sleeved on the outer side of the flushing channel.
[0012] As a further improvement of this utility model, the flushing channel and the second port are made of rigid material.
[0013] As a further improvement of this utility model, it also includes an installation component, which is disposed on the upper side of the end cap body. The installation component includes a first mounting seat, a second mounting seat, and flexible claws. The outer surfaces of the first mounting seat and the second mounting seat are fixedly connected. The opening of the first mounting seat faces the endoscope side, and the opening of the second mounting seat faces the flushing tube side. Both the first mounting seat and the second mounting seat are made of rigid material. The endoscope is snapped into the first mounting seat, and the flushing tube is snapped into the second mounting seat. The flexible claws are symmetrically arranged on both sides of the first mounting seat. When the flexible claws are in the tightened state, they form a ring with the first mounting seat to hold the endoscope tightly. When the flushing tube is snapped into place, the flexible claws unfold outward.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting a main end cap, the endoscope is connected to the first port through a flexible elastic sleeve. The endoscope lens is isolated from the digestive tract through the first port and the endoscope channel. This can prevent the endoscope lens from directly adhering to the inner wall of the digestive tract during the endoscopic examination, avoid blurring of the endoscopic field of view, and improve the clarity of the examination.
[0015] 2. By setting a secondary cap, which is placed alongside the main cap, it is possible to perform both irrigation and examination operations simultaneously during treatment. This facilitates the irrigation of blood clots during examination and further expands the endoscopic field of view. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the end cap body of this utility model; Figure 2 This is an exploded view of the end cap body and connecting sleeve of this utility model; Figure 3 This is a schematic diagram of the installation component of this utility model; Figure 4 This is a schematic diagram of the overall structure of this utility model.
[0017] Explanation of the labels in the diagram: Main end cap 1, endoscope channel 11, first port 12, connecting sleeve 13, secondary end cap 2, flushing channel 21, second port 22, connecting rib 3, endoscope 4, flushing tube 5, mounting assembly 6, first mounting base 61, second mounting base 62, flexible claw 63. Detailed Implementation
[0018] Specific Implementation Example 1: Please refer to Figures 1-4 A negative pressure suction kit for clear endoscopic visualization, comprising an end cap body and mounting components 6.
[0019] The end cap body includes a main end cap 1 and a secondary end cap 2, arranged on the left and right sides. The main end cap 1 and the secondary end cap 2 are connected by a connecting rib 3. The endoscope 4 is snapped onto the upper end of the main end cap 1, and the flushing tube 5 is snapped onto the upper end of the secondary end cap 2. The endoscope 4 and the flushing tube 5 are connected to each other by a mounting assembly 6. The flushing tube 5 is made of a flexible material, and the outer diameter of the endoscope 4 is larger than the outer diameter of the flushing tube 5. It should be noted that in this embodiment, the main end cap 1 and the secondary end cap 2 are made of transparent material to ensure that the endoscope can obtain a clear field of view through the end cap body, thereby reducing the impact of low material transparency on the endoscope's field of view.
[0020] The main end cap 1 includes an endoscope channel 11, a first port 12, and a connecting sleeve 13. The endoscope channel 11 is fixedly disposed above the first port 12, and the endoscope channel 11 and the first port 12 are coaxially arranged and connected. The lower end of the connecting sleeve 13 is elastically fitted onto the outside of the endoscope channel 11, and the lower end of the endoscope 4 is fitted inside the connecting sleeve 13. Figure 2 As shown, the inner diameter of the first port 12 decreases proportionally from top to bottom, and the outer wall of the first port 12 is inclined towards the center of the first port 12. Preferably, the connecting sleeve 13 is made of silicone material, and the endoscope channel 11 and the first port 12 are made of rigid material.
[0021] The secondary cap 2 includes a flushing channel 21 and a second port 22. The flushing channel 21 is fixedly disposed on the upper side of the second port 22, and the flushing channel 21 and the second port 22 are coaxially arranged and connected. The lower end of the flushing pipe 5 is elastically sleeved on the outer side of the flushing channel 21. Preferably, the flushing channel 21 and the second port 22 are made of rigid material. In this embodiment, the connecting rib 3 has a trapezoidal structure, and the left and right sides of the connecting rib 3 are respectively connected to the first port 12 and the second port 22. The first port 12 and the second port 22 are located on the same plane.
[0022] Mounting assembly 6 includes a first mounting base 61, a second mounting base 62, and a flexible claw 63; mounting assembly 6 is disposed on the upper side of the end cap body. The outer surfaces of the first mounting base 61 and the second mounting base 62 are fixedly connected. The opening of the first mounting base 61 faces the endoscope 4, and the opening of the second mounting base 62 faces the flushing tube 5. Both the first mounting base 61 and the second mounting base 62 are made of rigid material. The first mounting base 61 is matched to the size of the endoscope 4, and the second mounting base 62 is matched to the size of the flushing tube 5.
[0023] The endoscope 4 is secured within the first mounting base 61, and the flushing tube 5 is secured within the second mounting base 62. Flexible claws 63 are symmetrically arranged on both sides of the first mounting base 61. When the flexible claws 63 are in the tightened state, they form a ring with the first mounting base 61 to hold the endoscope 4. When the flushing tube 5 is engaged, the flexible claws 63 extend outwards. It should be noted that the flexible claws 63 are a conventional existing technology, and their specific structure and connection relationship will not be described in detail here.
[0024] Working principle: By setting the main end cap 1, the endoscope 4 is secured to the first port 12 by a flexible elastic sleeve 13. The first port 12 and the endoscope channel 11 isolate the endoscope 4 lens from the digestive tract, preventing the endoscope 4 lens from directly adhering to the inner wall of the digestive tract during the endoscopic examination, avoiding blurred vision of the endoscope 4, and improving the clarity of the examination. The endoscope 4 and the flushing tube 5 are respectively secured to the first mounting base 61 and the second mounting base 62. The flushing tube 5 is connected to the secondary end cap 2. By setting it in parallel with the main end cap 1, the flushing and examination operations can be performed simultaneously during the treatment, which is convenient for flushing blood clots during the examination and further expanding the endoscopic field of view.
Claims
1. A negative pressure suction kit for clear endoscopic visualization, characterized in that: It includes the end cap body and the mounting assembly (6); the end cap body includes a main end cap (1) and a secondary end cap (2) set on the left and right sides; the main end cap (1) and the secondary end cap (2) are connected by a connecting rib (3); the endoscope (4) is snapped onto the upper end of the main end cap (1), and the flushing tube (5) is snapped onto the upper end of the secondary end cap (2).
2. The negative pressure suction kit for clear endoscopic vision according to claim 1, characterized in that: The main end cap (1) includes an endoscope channel (11), a first port (12) and a connecting sleeve (13); the endoscope channel (11) is fixedly disposed on the upper side of the first port (12), the endoscope channel (11) and the first port (12) are coaxially disposed, and the endoscope channel (11) and the first port (12) are connected; the lower end of the connecting sleeve (13) is elastically sleeved on the outside of the endoscope channel (11), and the lower end of the endoscope (4) is sleeved inside the connecting sleeve (13).
3. The negative pressure suction kit for clear endoscopic visualization according to claim 2, characterized in that: The inner diameter of the first port (12) decreases proportionally from top to bottom, and the outer wall of the first port (12) is inclined toward the center of the first port (12).
4. The negative pressure suction kit for clear endoscopic vision according to claim 2, characterized in that: The connecting sleeve (13) is made of silicone.
5. The negative pressure suction kit for clear endoscopic visualization according to claim 2, characterized in that: The endoscope channel (11) and the first port (12) are made of rigid material.
6. The negative pressure suction kit for clear endoscopic vision according to claim 1, characterized in that: The secondary end cap (2) includes a flushing channel (21) and a second port (22); the flushing channel (21) is fixedly installed on the upper side of the second port (22), the flushing channel (21) and the second port (22) are coaxially arranged, and the flushing channel (21) and the second port (22) are connected; the lower end of the flushing pipe (5) is elastically sleeved on the outside of the flushing channel (21).
7. The negative pressure suction kit for clear endoscopic vision according to claim 6, characterized in that: The flushing channel (21) and the second port (22) are made of rigid material.
8. The negative pressure suction kit for clear endoscopic vision according to claim 1, characterized in that: It also includes an installation component (6), which is located on the upper side of the end cap body. The installation component (6) includes a first mounting seat (61), a second mounting seat (62), and a flexible claw (63). The outer sides of the first mounting seat (61) and the second mounting seat (62) are fixedly connected. The opening of the first mounting seat (61) faces the endoscope (4), and the opening of the second mounting seat (62) faces the flushing tube (5). Both the first mounting seat (61) and the second mounting seat (62) are made of rigid material. The endoscope (4) is snapped into the first mounting seat (61), and the flushing tube (5) is snapped into the second mounting seat (62). The flexible claw (63) is symmetrically arranged on both sides of the first mounting seat (61). When the flexible claw (63) is in a tightened state, it forms a ring with the first mounting seat (61) to hold the endoscope (4). When the flushing tube (5) is snapped into the first mounting seat (61), the flexible claw (63) unfolds outward.
Citation Information
Patent Citations
CN209678470U