A new type of inflatable proctosigmoidoscope

Abstract

This invention discloses a novel inflatable rectosigmoidoscope, comprising an outer transparent tube with a guide tongue at its tip, a handheld sleeve at the end of the outer transparent tube away from the guide tongue, a retaining ring at one end of the handheld sleeve, and an internally threaded tube inside the outer transparent tube. An imaging component is threadedly connected to the internally threaded tube, and the imaging component is positioned at the tip of an auxiliary adjustment tube, which is fitted onto the internally threaded tube. A sealed cavity is formed between the outer transparent tube and the internally threaded tube. An inflation port is located at the bottom of the outer transparent tube, communicating with the cavity. This invention facilitates insertion into the patient's body by using the outer transparent tube in conjunction with the guide tongue, handheld sleeve, and retaining ring. Simultaneously, the internally threaded tube, in conjunction with the imaging component and the auxiliary adjustment tube, facilitates rotation and adjustment of the imaging component's working position to achieve a standard spiral-up imaging mode. This results in high-quality images and a standardized imaging method, providing a foundation for subsequent three-dimensional image reconstruction.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a novel inflatable rectosigmoidoscope. Background Technology

[0002] Sigmoidoscopy is an examination method used to diagnose diseases of the rectum and sigmoid colon. Through a sigmoidoscope, the morphology of the rectal and sigmoid colonic mucosa can be directly observed, and biopsies can be performed.

[0003] Currently available endoscopes are mostly for rectal observation or simplified versions based on existing fiberoptic colonoscopes. They have several drawbacks: 1. Patients need to take laxatives beforehand for bowel preparation, leading to significant discomfort during the procedure; 2. The dilatation arm of the dilatation type may obscure part of the rectal mucosa, affecting examination results, and it cannot observe the sigmoid colon, where lesions are frequently found; 3. Using fixed-position lenses and illumination results in low-resolution images, which cannot provide a basis for subsequent 3D image reconstruction. Furthermore, performing multiple examinations requires multiple insertions of the endoscope, making the procedure cumbersome and limiting its scalability. Summary of the Invention

[0004] The purpose of this invention is to provide a novel inflatable rectosigmoidoscope to solve the problems of cumbersome pre-procedure procedures, easy obstruction of part of the rectal mucosa during use affecting the examination, and inability to meet the requirements of subsequent three-dimensional image reconstruction due to the use of fixed-position lenses and lighting.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A novel inflatable rectosigmoidoscope includes an external transparent tube with a guide tongue at its tip and a hand grip at the end of the external transparent tube away from the guide tongue. A retaining ring is located at one end of the hand grip. An internally threaded tube is disposed inside the external transparent tube, and an imaging component is threadedly connected to the internally threaded tube. The imaging component is located at the tip of an auxiliary adjustment tube, which is fitted onto the internally threaded tube. A sealed cavity is formed between the external transparent tube and the internally threaded tube. An inflation port is located at the bottom of the external transparent tube, communicating with the cavity.

[0007] Optionally, both the outer transparent hose and the inner threaded hose are hollow tubes and are on the same center line.

[0008] Optionally, the shooting component includes a mounting platform, which is threadedly connected to the internally threaded flexible hose, and a camera and a lighting lamp are respectively mounted on the mounting platform.

[0009] Optionally, the hand grip and the retaining ring are made of hard plastic, and both the hand grip and the retaining ring are detachably mounted on the outer transparent flexible tube.

[0010] Optionally, a sealing ring is provided at the connection between the auxiliary adjusting hose and the outer transparent hose to ensure the airtightness of the cavity.

[0011] The beneficial effects of this invention are as follows: By using an external transparent flexible tube in conjunction with a guide tongue, hand sleeve, and retaining ring, it is easy to insert the device into the patient's body. At the same time, the internal threaded flexible tube, in conjunction with the imaging component and the auxiliary adjustment flexible tube, facilitates the rotation, lifting, and adjustment of the working position of the imaging component to achieve a standard spiral upward imaging mode. This results in high image quality and a standardized imaging method, which can provide a foundation for subsequent three-dimensional image reconstruction. Furthermore, it changes the traditional expansion setting, avoiding the expansion arm from obscuring part of the rectal mucosa. The expansion of the external transparent flexible tube after inflation allows the intestinal wall to be stretched open for easy observation of the mucosa. For lesions in some folds, the intestine can be further inflated through the inner opening of the internal threaded flexible tube to further expose the lesion and facilitate observation, ensuring the smooth conduct of sigmoidoscopy. Attached Figure Description

[0012] The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

[0013] Figure 1 This is a perspective three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the perspective front view structure of the present invention;

[0015] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 4 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 5 This is a schematic diagram of the main structure of the present invention;

[0018] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure;

[0019] Figure 7 This is a three-dimensional structural diagram of the outer transparent hose, the inner threaded hose, and the air inlet in this invention;

[0020] Figure 8 This is a three-dimensional structural diagram of the auxiliary adjustment hose and the shooting component in this invention.

[0021] In the picture: 1. Outer transparent hose; 2. Guide tongue; 3. Hand grip; 4. Retaining ring; 5. Internal threaded hose; 6. Mounting platform; 7. Camera; 8. Lighting lamp; 9. Auxiliary adjustment hose; 10. Inflation port. Detailed Implementation

[0022] Any feature disclosed in this specification, unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is merely one example of a series of equivalent or similar features.

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] like Figure 1-8A novel inflatable rectosigmoidoscope is shown, comprising an external transparent tube 1, a guide tongue 2 at the top of the external transparent tube 1, a handhold sleeve 3 at the end of the external transparent tube 1 away from the guide tongue 2, a retaining ring 4 at one end of the handhold sleeve 3, an internally threaded tube 5 inside the external transparent tube 1, and a camera assembly threadedly connected to the internally threaded tube 5. The camera assembly is located at the top of an auxiliary adjustment tube 9, which is fitted onto the internally threaded tube 5, forming a sealed cavity between the external transparent tube 1 and the internally threaded tube 5. An inflation port 10 is located at the bottom of the external transparent tube 1, communicating with the cavity. It should be noted that the camera assembly can achieve a standard spiral-upward imaging mode by using the internally threaded tube 5 in conjunction with the auxiliary adjustment tube 9 as needed. When the inflation port 10 is inflated, the outer wall of the external transparent tube 1 expands, achieving the effect of positioning the colonoscope. The rectal portion of the external transparent tube 1 is a rigid transparent tube, while the other parts are flexible transparent tubes.

[0027] Specifically, both the outer transparent flexible tube 1 and the inner threaded flexible tube 5 are hollow tubes and are on the same center line. It should be noted that endoscopic auxiliary tools such as water spray tubes and suction tubes can be placed inside the inner threaded flexible tube 5, which protrude from the guide tongue 2 at the end of the outer transparent flexible tube 1.

[0028] Specifically, the shooting assembly includes a mounting platform 6, which is threadedly connected to the internally threaded flexible tube 5. A camera 7 and a lighting lamp 8 are respectively mounted on the mounting platform 6. It should be noted that the camera 7 is a wireless miniature camera, and the lighting lamp 8 is a wireless miniature lighting lamp.

[0029] Specifically, the hand grip 3 and the retaining ring 4 are made of rigid plastic, and both are detachably mounted on the outer transparent flexible tube 1. It should be noted that the hand grip 3 and the retaining ring 4 are detachably mounted on the outer transparent flexible tube 1 via a threaded connection, facilitating replacement and installation as needed.

[0030] Specifically, a sealing ring is provided at the connection between the auxiliary adjusting hose 9 and the outer transparent hose 1 to ensure the airtightness of the cavity. It should be noted that the sealing ring has multiple layers.

[0031] The working principle of this specific embodiment is as follows: First, install the mounting platform 6 and the auxiliary adjustment hose 9 on the internal threaded hose 5, and then hold the holding sleeve 3 and insert the outer transparent hose 1 into the patient's anus and into the intestine.

[0032] When the outer transparent tube 1 enters the rectum and the guide tongue 2 reaches the top of the rectum, the process can be judged by touch, insertion length and camera image. The cavity between the outer transparent tube 1 and the inner threaded tube 5 is inflated through the air inlet 10, so that the outer transparent tube 1 is further extended. During the process, the guide tongue 2 guides to ensure smooth entry.

[0033] The angle between the extended portion of the outer transparent flexible tube 1 and the inner tube of the rectum is flexible and variable, and the angle between the sigmoid colon and rectum in the natural state of the human body is close to 120°-160°. Then, the auxiliary adjustment flexible tube 9 is rotated and adjusted as needed to adjust the working position of the camera 7. During the above process, the camera 7 will take pictures in the standard spiral upward mode to obtain a complete image of the mucosa of the intestinal segment and display it on the screen in real time.

[0034] Meanwhile, various small devices, such as ultrasound devices, can be connected in series on the internally threaded flexible tube 5. Note: When using an ultrasound probe, the tube is changed from being filled with air to being filled with water. The internally threaded flexible tube 5 is also open at both ends, which can be used with various endoscopic auxiliary tools. For example, a water spray tube can be inserted to perform staining on the intestinal lumen.

[0035] Once the examination is complete, the air inlet 10 is deflated, allowing the outer transparent tube 1 to be smoothly removed from the patient's body.

[0036] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A novel inflatable rectosigmoidoscope, characterized in that: The device includes an outer transparent tube with a guide tongue at its top and a hand grip at the end away from the guide tongue. A retaining ring is located at one end of the hand grip. An internally threaded tube is located inside the outer transparent tube, and a shooting component is threadedly connected to the internally threaded tube. The shooting component is positioned at the top of an auxiliary adjustment tube, which is fitted onto the internally threaded tube. The position of the shooting component can be adjusted spirally along the axis of the outer transparent tube using the internally threaded tube in conjunction with the auxiliary adjustment tube. A sealed cavity is formed between the outer transparent tube and the internally threaded tube. An air inlet is located at the bottom of the outer transparent tube, communicating with the cavity. Inflating the cavity between the outer transparent tube and the internally threaded tube through the air inlet allows the outer transparent tube to extend. The extended portion of the outer transparent tube is flexible. Both the outer transparent hose and the inner threaded hose are hollow tubes and are on the same center line; The camera assembly includes a mounting platform, which is threadedly fitted onto the internally threaded flexible hose. A camera and a lighting lamp are respectively mounted on the mounting platform.

2. The novel inflatable rectosigmoidoscope according to claim 1, characterized in that: The hand grip and the retaining ring are made of hard plastic, and both the hand grip and the retaining ring are detachably mounted on the outer transparent flexible tube.

3. A novel inflatable rectosigmoidoscope according to claim 1, characterized in that: A sealing ring is provided at the connection between the auxiliary adjustment hose and the outer transparent hose to ensure the airtightness of the cavity.

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