Deformable transparent cap for digestive endoscope
By setting up a wiring channel and traction wire inside the transparent endoscope cap and adjusting the cap diameter, the problems of difficulty in entering the existing transparent endoscope cap at small openings and poor field of vision are solved, achieving the effect of simple structure, low cost and safe operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUANGLANG COUNTY PEOPLES HOSPITAL
- Filing Date
- 2025-01-14
- Publication Date
- 2026-05-12
AI Technical Summary
Existing transparent endoscopic caps are difficult to insert through small openings, resulting in poor visibility. They are also complex in structure and expensive.
Design a deformable transparent cap for digestive endoscopy. By setting a suture channel and traction wire inside the cap, the diameter of the cap can be adjusted by using the traction wire, thus achieving the deformability of the cap, simplifying the structure and reducing costs.
It enables the flexible use of transparent caps in channels of different sizes, has a simple structure and low cost, avoids the traction wire from getting tangled with internal organs and tissues, and improves operational accuracy and safety.
Smart Images
Figure CN224220104U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a deformable transparent cap for digestive endoscopy. Background Technology
[0002] An endoscope is a medical device integrating image sensors, optical lenses, light sources, and mechanical structures. It enters the body through natural orifices or small incisions, allowing direct observation of lesions within organs, such as inflammation, ulcers, and tumors. This enables the development of optimal treatment plans, significantly improving diagnostic accuracy and treatment outcomes. Transparent caps for endoscopes, widely used as auxiliary tools in endoscopic examinations and treatments, enhance the clarity and safety of the endoscopic field of view.
[0003] Currently, conventional endoscopic caps are typically cylindrical, offering advantages such as clear visualization and ease of lesion observation. However, their disadvantage lies in the difficulty of drilling into small openings, such as the appendiceal opening at the end of the cecum. For acute and chronic appendicitis, there is an endoscopic treatment method called endoscopic retrograde appendectomy (ERAT). ERAT often uses a cone-shaped transparent cap. The advantage of the cone-shaped cap is that its tip can be drilled into the appendiceal opening, allowing the auxiliary instruments to directly enter the appendiceal lumen. However, the disadvantages of the cone-shaped cap are poor visualization, certain risks associated with insertion, difficulty in detecting intestinal lesions, and challenges in intestinal examination.
[0004] To address this, Chinese utility model patent CN209003925U provides an endoscope transparent cap, comprising a main body with a top assembly mounted on top. The top assembly includes movable baffles evenly distributed around the axis of the main body and an adjustment mechanism. The adjustment mechanism includes a pull member connected to the side of the movable baffles. By adjusting the pull member, the angle between the movable baffles and the outer wall of the main body can be adjusted, thereby adjusting the diameter of the front end of the transparent cap. However, the above solution suffers from complex structure and high cost.
[0005] Therefore, there is an urgent need for a deformable transparent cap for endoscopes to solve the above problems. Utility Model Content
[0006] To address the technical problems existing in the prior art, the purpose of this utility model is to provide a deformable transparent cap for digestive endoscopy, which has the characteristics of simple structure, convenient operation and low cost.
[0007] To achieve the above-mentioned objectives, this utility model provides a deformable transparent cap for digestive endoscopy, comprising:
[0008] The cap body is made of a flexible, transparent material and is hollow and cylindrical. The cap body has a wiring channel and a guide wire exit hole. The wiring channel includes a first channel and a second channel. The first channel is annular and located at the first end of the cap body. The second channel is located along the length of the cap body, and its two ends connect the first channel and the guide wire exit hole. The guide wire exit hole is located on the inner sidewall of the middle part of the cap body.
[0009] The traction line is a single strand of tension-free yarn, which is placed in the wiring channel and fixed to the cap body. The traction line passes through the traction line exit hole and exits the wiring channel.
[0010] According to one technical solution of this utility model, the traction wire exit hole is one.
[0011] The traction wire is a single wire, which is installed in the wiring channel. Its middle part is fixed to the cap body by a hot-melt process or by bonding. Both ends of the traction wire pass through the traction wire exit hole.
[0012] According to one technical solution of this utility model, there are two traction wire exit holes, which are symmetrically arranged along the axis of the cap body;
[0013] The traction wires consist of two wires. The first ends of the two traction wires are disposed in the first channel and fixed to the cap body by a hot-melt process or by bonding. The second ends of the two traction wires are respectively passed through two traction wire exit holes.
[0014] According to one technical solution of this utility model, there are two traction wire exit holes, which are symmetrically arranged along the axis of the cap body;
[0015] The traction line is a single wire. After the traction line is wound around in the first channel, both ends of the traction line pass through two traction line exit holes.
[0016] According to one technical solution of this utility model, a guide tube is sleeved on the traction line, and the traction end of the traction line passes through the inner cavity of the guide tube.
[0017] According to one technical solution of this utility model, the outer diameter of the guide tube is less than 2.8 mm.
[0018] According to one technical solution of this utility model, the cap body is provided with a drainage hole, which is disposed through the inner and outer side walls of the cap body.
[0019] According to one technical solution of this utility model, an endoscope mounting groove is provided on the second end of the cap body, and a lens anti-slip part is provided in the endoscope mounting groove.
[0020] According to one technical solution of this utility model, the lens anti-slip part is a convex ring or convex point provided along the inner wall of the endoscope mounting groove.
[0021] According to one technical solution of this utility model, after the traction line is tightened, the minimum inner diameter of the first end port of the cap body is not less than 3.5mm.
[0022] Compared with the prior art, this utility model has the following advantages:
[0023] This invention proposes a deformable transparent cap for digestive endoscopy. By providing a suture channel at the first end of the cylindrical cap body, including a first suture channel along the first end port and a second suture channel along the length of the cap body, one end of the traction suture can pass through the suture channel. This allows for easy control of the diameter of the first port of the cap by tightening the traction suture, enabling the operator to adjust the diameter of the transparent cap according to the needs of the surgical procedure, thus meeting the needs of various application scenarios. This invention features a simple and convenient transparent cap structure, low cost, and ease of promotion.
[0024] In this invention, a traction wire exit hole is provided on the cap body. The traction wire exit hole is located on the inner side of the cap body, which facilitates the traction wire to be led out through the endoscope biopsy channel. This ensures that there is no wire between the transparent cap and the outer surface of the endoscope, thereby avoiding contact and entanglement of the traction wire with internal organs and tissues during the operation, which could affect the accuracy of the operation or cause damage to internal organs and tissues. Attached Figure Description
[0025] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0026] Figure 1 This schematic diagram illustrates the structure of a deformable transparent cap for a digestive endoscope according to one embodiment of the present invention.
[0027] Figure 2 The schematic diagram shows a cross-sectional view of a deformable transparent cap for a digestive endoscope provided according to one embodiment of the present invention.
[0028] Figure 3 This schematic diagram illustrates the structure of a deformable transparent cap for a digestive endoscope according to another embodiment of the present invention.
[0029] Figure 4This schematic diagram illustrates the structure of a deformable transparent cap for a digestive endoscope according to another embodiment of the present invention.
[0030] Figure 5 This diagram illustrates the usage state of the deformable transparent cap for digestive endoscopy according to the present invention when the traction suture is loosened.
[0031] Figure 6 This diagram illustrates the use of the deformable transparent cap for digestive endoscopy according to the present invention during traction suture surgery.
[0032] The correspondence between component names and reference numerals in the accompanying drawings is as follows:
[0033] 1. Cap body; 2. Wire routing channel; 3. Wire exit hole; 4. Wire; 5. Guide tube; 6. Endoscope; 7. Biopsy channel;
[0034] 11. Endoscope mounting slot; 12. Lens anti-slip part;
[0035] 21. First Channel; 22. Second Channel;
[0036] 41. Point where the traction line is fixed. Detailed Implementation
[0037] The description of the embodiments in this specification should be taken in conjunction with the accompanying drawings, which should form part of the complete specification. In the drawings, the shape or thickness of the embodiments may be exaggerated and may be indicated in a simplified or convenient manner. Furthermore, parts of the various structures in the drawings will be described separately; it is worth noting that elements not shown in the figures or not described in words are in a form known to those skilled in the art.
[0038] The description of the embodiments herein, including any references to direction and orientation, is for ease of description only and should not be construed as limiting the scope of protection of this utility model. The following description of preferred embodiments involves combinations of features, which may exist independently or in combination; this utility model is not particularly limited to the preferred embodiments. The scope of this utility model is defined by the claims.
[0039] like Figure 1 and Figure 2 As shown, the present invention provides a deformable transparent cap for digestive endoscopy, comprising a cap body 1 and a traction wire 4.
[0040] The cap body 1 is made of a flexible, transparent material (such as plastic) and is hollow and cylindrical. The cap body 1 contains a suture channel 2 and a traction wire exit hole 3. The suture channel 2 includes a first channel 21 and a second channel 22. The first channel 21 is annular and located at the first end of the cap body 1. The second channel 22 is located along the length of the cap body 1, and its two ends connect the first channel 21 to the traction wire exit hole 3. The traction wire 4 is a single-strand tension-free thread with a diameter less than 0.3 mm, located within the suture channel 2. Both ends of the traction wire 4 exit the suture channel 2 through the traction wire exit hole 3. By pulling the traction wire 4, the first end of the cap body 1 can be tightened, thereby reducing the diameter of the first end of the cap body and allowing the endoscope to enter a smaller intraoperative channel.
[0041] In one embodiment of this utility model, such as Figure 1 As shown, there are two traction wire exit holes 3, symmetrically arranged along the axis of the cap body 1. There is one traction wire 4, and the length of the traction wire 4 is twice the length of the endoscope body. After the traction wire 4 is wrapped in the first channel 21, both ends of the traction wire 4 exit through the two traction wire exit holes 3 respectively. The traction wire 4 does not need to be fixed to the cap body 1, which improves the assembly efficiency of the traction wire 4 and the cap body 1.
[0042] In another embodiment of this utility model, such as Figure 3 As shown, there is one traction wire exit hole 3 and one traction wire 4. The length of the traction wire 4 is twice the length of the endoscope body. The traction wire 4 is set in the wiring channel 2, and its middle part is fixed to the cap body 1 by heat fusion or bonding. Both ends of the traction wire 4 pass through the traction wire exit hole 3. The middle part of the traction wire 4 is fixed to the cap body 1, and both ends pass through the wiring channel 2 through the traction wire exit hole 3. Pulling the end of the traction wire 4 can quickly tighten the first end port of the cap body 1, improving the adjustment efficiency of the cap body port diameter.
[0043] In another embodiment of this utility model, such as Figure 4 As shown, there are two traction wire exit holes 3, symmetrically arranged along the axis of the cap body 1; there are two traction wires 4, with the first ends of the two traction wires 4 placed inside the first channel 21 and fixed to the cap body 1 by heat fusion or bonding, and the second ends of the two traction wires 4 passing through the two traction wire exit holes 3 respectively. By fixing the first ends of the two traction wires 4 to the cap body 1 respectively, the unilateral contraction of the first end of the cap body 1 can be adjusted by pulling the traction wires 4 respectively, thereby adjusting the shape of the first end of the cap body 1 after contraction, thus meeting the lens insertion requirements of different parts.
[0044] In some embodiments of this utility model, the traction wire exit hole 3 is located on the inner side of the cap 1, which facilitates the traction wire 4 to enter the biopsy channel of the endoscope from the inner side of the cap 1, thereby avoiding the traction wire 4 from being exposed and coming into contact with and tangling with internal organs and tissues, causing damage to internal organs and tissues or affecting the accuracy of the operation.
[0045] In some embodiments of this utility model, a guide tube 5 is sleeved on the traction line 4, and the traction end of the traction line 4 passes through the inner cavity of the guide tube 5. The guide tube 5 can be made of plastic material, which has a certain degree of hardness and flexibility, so that the end of the traction line 4 can be guided to the operating end of the endoscope through the guide tube 5, thereby improving the installation efficiency of the cap 1 and the traction line 4 with the endoscope.
[0046] In some embodiments of this invention, the outer diameter of the guide tube 5 is less than 2.8 mm, which is less than the minimum inner diameter of the biopsy channel 7 on the endoscope 6.
[0047] In some embodiments of this utility model, the cap body 1 is provided with a drainage hole, which is set through the inner and outer walls of the cap body 1 to avoid the residual tissue fluid in the cap body 1 affecting the endoscopic field of view during operation.
[0048] In some embodiments of this utility model, the second end of the cap body 1 is provided with an endoscope mounting groove 11, and the endoscope mounting groove 11 is provided with a lens anti-slip part 12. The lens anti-slip part 12 is a convex ring or convex point provided along the inner wall of the endoscope mounting groove 11, which is used to improve the firmness of the cap body 1 and the endoscope during installation and prevent the cap body 1 from falling off the endoscope when the endoscope is removed.
[0049] In some embodiments of this utility model, after the traction line 4 is tightened, the minimum inner diameter of the first end port of the cap 1 is not less than 3.5 mm, which is not less than the minimum diameter through which the endoscopic instrument passes, thus meeting the operational requirements of endoscopic surgery or examination.
[0050] The method of using this utility model is as follows:
[0051] The traction suture 4 is installed on the cap body 1 through the suture channel 2. Both ends of the traction suture 4 pass through the traction suture exit hole 3 and exit along the guide tube 5. In use, the guide tube 5 is inserted into the biopsy channel 61 of the endoscope 6. The traction suture 3 is guided through the guide tube 5 along the biopsy channel 61 to the operating end, and then the second end of the cap body 1 is fixed to the end of the electron microscope. During the surgical procedure, if... Figure 6 As shown, by pulling the traction line 4, the first end of the cap 1 can be contracted, and the diameter of the first end of the cap 1 can be reduced to a cone shape, making it easier to enter a channel with a smaller diameter; by releasing the traction line 4, as shown... Figure 5 As shown, the cap 1 returns to its cylindrical shape under the action of elasticity, thereby meeting the operational requirements of the large inner diameter channel.
[0052] Finally, it should be noted that the above description represents the preferred embodiment of this utility model. It should be pointed out that although the preferred embodiment of this utility model has been described, those skilled in the art, once they understand the basic inventive concept of this utility model, can make several improvements and modifications without departing from the principles described herein. These improvements and modifications should also be considered within the protection scope of this utility model. Therefore, the appended claims are intended to be interpreted as including the preferred embodiment as well as all changes and modifications falling within the scope of the embodiments of this utility model.
Claims
1. A deformable transparent cap for a digestive endoscope, characterized in that, include: The cap body (1) is made of a flexible transparent material and is hollow cylindrical. The cap body (1) is provided with a wiring channel (2) and a traction wire outlet hole (3). The wiring channel (2) includes a first channel (21) and a second channel (22). The first channel (21) is annular and is located at the first end of the cap body (1). The second channel (22) is located along the length of the cap body (1). The two ends of the second channel (22) are used to connect the first channel (21) and the traction wire outlet hole (3). The traction wire outlet hole (3) is located on the inner sidewall of the middle part of the cap body (1). The traction line (4) is a single strand of tension-free thread, which is set in the wiring channel (2) and fixed to the cap body (1). The traction line (4) passes through the wiring channel (2) through the traction line exit hole (3).
2. The deformable transparent cap for digestive endoscopy according to claim 1, characterized in that, The traction wire exit hole (3) is one. The traction wire (4) is a single wire, which is set in the wiring channel (2). Its middle part is fixed to the cap body (1) by hot melting or bonding. Both ends of the traction wire (4) pass through the traction wire exit hole (3).
3. The deformable transparent cap for digestive endoscopy according to claim 1, characterized in that, There are two traction wire exit holes (3), which are symmetrically arranged along the axis of the cap body (1); The traction wires (4) are two in number. The first ends of the two traction wires (4) are set in the first channel (21) and fixed to the cap body (1) by hot melting or bonding. The second ends of the two traction wires (4) are respectively passed through the two traction wire exit holes (3).
4. The deformable transparent cap for digestive endoscopy according to claim 1, characterized in that, There are two traction wire exit holes (3), which are symmetrically arranged along the axis of the cap body (1); The traction line (4) is a single line. After the traction line (4) is wound around in the first channel (21), both ends of the traction line (4) are passed through the two traction line exit holes (3).
5. The deformable transparent cap for digestive endoscopy according to claim 1, characterized in that, A guide tube (5) is sleeved on the traction line (4), and the traction end of the traction line (4) passes through the inner cavity of the guide tube (5).
6. The deformable transparent cap for digestive endoscopy according to claim 5, characterized in that, The outer diameter of the guide tube (5) is less than 2.8 mm.
7. The deformable transparent cap for digestive endoscopy according to claim 1, characterized in that, The cap body is provided with a drainage hole, which is provided through the inner and outer walls of the cap body (1).
8. The deformable transparent cap for digestive endoscopy according to claim 1, characterized in that, The cap body (1) has an endoscope mounting groove (11) at its second end, and a lens anti-slip part (12) is provided in the endoscope mounting groove (11).
9. The deformable transparent cap for digestive endoscopy according to claim 8, characterized in that, The lens anti-slip part (12) is a protruding ring or protrusion provided along the inner wall of the endoscope mounting groove (11).
10. The deformable transparent cap for digestive endoscopy according to claim 1, characterized in that, After the traction line (4) is tightened, the minimum inner diameter of the first end port of the cap body (1) is not less than 3.5 mm.