Intraoperative colorectal anastomotic stoma examination device
The integrated intraoperative colorectal anastomosis examination device captures and transmits anastomosis images in real time, solving the problems of complexity and equipment dependence in assessing anastomosis suture quality and blood supply in existing technologies, and achieving efficient and accurate anastomosis examination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUILIN MEDICAL UNIVERSITY
- Filing Date
- 2025-01-10
- Publication Date
- 2026-04-17
AI Technical Summary
Existing technologies for assessing the suture quality and blood supply of colorectal anastomoses suffer from high subjectivity, complex operation, and high equipment dependence. In particular, traditional methods cannot simultaneously and accurately assess the tightness of the anastomosis and the blood supply.
Design an intraoperative colorectal anastomosis examination device that integrates a main channel, operating table, gas supply tube, infusion tube, observation tube, and imaging mechanism. The imaging mechanism captures anastomosis images in real time and transmits them to an external display screen. Combined with gas and liquid delivery functions, it provides intuitive surgical assistance and assesses the suture quality and blood supply of the anastomosis.
It improves the accuracy of anastomosis examination and surgical quality, reduces reliance on physician experience, lowers the risks of traditional examination methods, and can simultaneously assess the tightness of the anastomosis and blood supply, avoiding damage caused by blind insertion.
Smart Images

Figure CN224125915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, and in particular to an intraoperative colorectal anastomosis examination device. Background Technology
[0002] An anastomosis is the site where two segments of tissue or organ are reconnected during surgery. In colorectal surgery, doctors suture the ends of the two segments of the rectum that need to be connected after surgical removal to form an anastomosis. The quality of the anastomosis sutures also needs to be checked after surgery.
[0003] Currently, the main measures for checking the quality of intraoperative anastomosis include the following:
[0004] Digital rectal examination: For low anastomoses, surgeons can use digital rectal examination to check the tightness of the anastomosis. This method is simple and easy to perform, but it mainly relies on the surgeon's experience and feel, which may be highly subjective. In addition, it is only applicable to low anastomoses and cannot assess the blood supply of the anastomosis.
[0005] Intraoperative colonoscopy: Intraoperative colonoscopy allows for direct visualization and examination of the anastomosis quality, including bleeding and blood supply, which helps assess the integrity and functional status of the anastomosis. However, colonoscopy carries certain risks and technical challenges in practice, and can lead to a waste of medical resources.
[0006] Indocyanine green (ICG) fluorescence imaging: This technique assesses the tightness of anastomoses using the indocyanine green near-infrared fluorescent dye. ICG fluorescence imaging provides real-time, high-contrast images, helping to identify minute leaks in the anastomosis and thus preventing postoperative anastomotic leakage. However, this method requires specialized equipment and cannot directly assess the local blood supply to the anastomosis. Utility Model Content
[0007] The technical problem to be solved by this utility model is to provide an intraoperative colorectal anastomosis examination device to solve the above-mentioned problem.
[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: an intraoperative colorectal anastomosis examination device, comprising: a main channel, an operating table, an air supply tube, an infusion tube, an operating tube, an observation tube, and an imaging mechanism; the main channel and the operating table are connected, the air supply tube, the infusion tube, the operating tube, and the observation tube are all sealed and installed on the operating table, and the imaging mechanism can movably pass through the observation tube, the operating table, and the main channel.
[0009] The beneficial effects of this invention are as follows: When the imaging device can move through the observation tube, operating table, and main channel and enter the vicinity of the anastomosis in the rectum, it can provide intuitive surgical assistance, transmitting the anastomosis image to the outside in real time, providing doctors with intuitive surgical assistance and facilitating precise surgical operations; at the same time, it can also transmit the image of the anastomosis after suturing to the outside in real time, enabling doctors to more accurately assess the blood supply and tightness of the anastomosis, thereby improving the quality of surgery and the accuracy of anastomosis examination; in addition, with the operating tube, external auxiliary instruments, such as anal tubes, can be inserted into the rectum under direct vision, avoiding the damage to the anastomosis caused by traditional blind insertion.
[0010] Based on the above technical solution, the present invention can be further improved as follows.
[0011] Furthermore, the main channel is a tubular structure, and a protective ring is wound around the outer wall of the end of the main channel away from the operating table.
[0012] The beneficial effect of adopting the above-mentioned further scheme is that the protective ring helps to prevent damage to intestinal tissue when the main channel is placed into the rectum.
[0013] Furthermore, the operating platform is a tubular structure with a sealing plug at one end away from the main channel, and the gas delivery pipe, the liquid delivery pipe, the operating pipe and the observation pipe are all sealed and installed on the sealing plug.
[0014] The beneficial effects of adopting the above-mentioned further solution are: on the one hand, the sealing plug helps to provide installation support for the gas delivery tube, infusion tube, operation tube and observation tube, and on the other hand, it helps to prevent the fluid inside the intestine from escaping from the operating table.
[0015] Furthermore, the gas pipeline is equipped with a gas valve for adjusting the gas flow rate.
[0016] The advantages of adopting the above-mentioned further scheme are: the gas delivery tube facilitates the delivery of carbon dioxide gas, establishes an operating space in the rectum and allows for gas inflation testing of the anastomosis to check the tightness of the anastomosis, and the gas valve facilitates the adjustment of the gas flow rate.
[0017] Furthermore, the infusion tube is equipped with a water valve to regulate the liquid flow rate.
[0018] The advantages of adopting the above-mentioned further solutions are: the infusion tubing facilitates the delivery of liquid, allows for flushing of the anastomosis or tightness testing, and the water valve facilitates the regulation of the liquid flow rate.
[0019] Furthermore, the operating tube is equipped with a first one-way valve to prevent fluid from escaping.
[0020] The beneficial effect of adopting the above-mentioned further scheme is that the first one-way valve helps prevent gas and liquid injected into the intestine from escaping from the operating tube.
[0021] Furthermore, the observation tube is equipped with a second one-way valve to prevent fluid from escaping.
[0022] The beneficial effect of adopting the above-mentioned further scheme is that the second one-way valve helps prevent gas and liquid injected into the intestine from escaping from the observation tube.
[0023] Furthermore, the imaging mechanism includes: a display screen, a signal transmission line, and a camera. The two ends of the signal transmission line are connected to the display screen and the camera respectively. The signal transmission line can movably pass through the observation tube, the second one-way valve, the operating table, and the main channel.
[0024] The beneficial effects of adopting the above-mentioned further solution are: the camera can help to reach the vicinity of the anastomosis after the carbon dioxide gas is delivered into the rectum through the gas delivery tube to establish the operating space, capture real-time images of the anastomosis, and transmit them to the external display screen through the signal transmission line, so as to help doctors intuitively evaluate the suturing quality of the anastomosis. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present utility model.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Main channel; 2. Operating table; 3. Gas supply tube; 4. Infusion tube; 5. Operating tube; 6. Observation tube; 7. Imaging mechanism; 11. Protective ring; 21. Sealing plug; 31. Air valve; 41. Water valve; 51. First one-way valve; 61. Second one-way valve; 71. Display screen; 72. Signal transmission line; 73. Camera. Detailed Implementation
[0028] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0029] like Figure 1 As shown, an intraoperative colorectal anastomosis examination device includes: a main channel 1, an operating table 2, an air supply tube 3, an infusion tube 4, an operating tube 5, an observation tube 6, and an imaging mechanism 7; the main channel 1 and the operating table 2 are connected, the air supply tube 3, the infusion tube 4, the operating tube 5, and the observation tube 6 are all sealed and installed on the operating table 2, and the imaging mechanism 7 can movably pass through the observation tube 6, the operating table 2, and the main channel 1.
[0030] The beneficial effects of this invention are as follows: When the imaging device can move through the observation tube, operating table, and main channel and enter the vicinity of the anastomosis in the rectum, it can provide intuitive surgical assistance, transmitting the anastomosis image to the outside in real time, providing doctors with intuitive surgical assistance and facilitating precise surgical operations; at the same time, it can also transmit the image of the anastomosis after suturing to the outside in real time, enabling doctors to more accurately assess the blood supply and tightness of the anastomosis, thereby improving the quality of surgery and the accuracy of anastomosis examination; in addition, with the operating tube, external auxiliary instruments, such as anal tubes, can be inserted into the rectum under direct vision, avoiding the damage to the anastomosis caused by traditional blind insertion.
[0031] Preferred, such as Figure 1 As shown, the main channel 1 is a tubular structure, and a protective ring 11 is wound around the outer wall of the end of the main channel 1 away from the operating table 2.
[0032] It should be noted that in the technical solution of this utility model, the protective ring 11 is made of a soft material, such as silicone, and its surface is round, smooth and without sharp edges.
[0033] The beneficial effect of adopting the above-mentioned preferred scheme is that the protective ring helps to prevent damage to intestinal tissue when the main channel is placed into the rectum.
[0034] Preferred, such as Figure 1 As shown, the operating table 2 is a tubular structure with a sealing plug 21 at one end away from the main channel 1. The gas delivery pipe 3, the liquid delivery pipe 4, the operating pipe 5, and the observation pipe 6 are all sealed and installed on the sealing plug 21.
[0035] The advantages of adopting the above-mentioned preferred solution are: on the one hand, the sealing plug helps to provide installation support for the gas delivery tube, infusion tube, operation tube and observation tube, and on the other hand, it helps to prevent the fluid inside the intestine from escaping from the operating table.
[0036] Preferred, such as Figure 1 As shown, the gas pipeline 3 is equipped with a gas valve 31 for adjusting the gas flow rate.
[0037] The advantages of adopting the above-mentioned preferred scheme are: the gas delivery tube facilitates the delivery of carbon dioxide gas, establishes an operating space in the rectum and allows for gas inflation testing of the anastomosis to check the tightness of the anastomosis, and the gas valve facilitates the adjustment of the gas flow rate.
[0038] Preferred, such as Figure 1 As shown, the infusion tube 4 is equipped with a water valve 41 for adjusting the liquid flow rate.
[0039] The advantages of adopting the above preferred solution are: the infusion tube facilitates the delivery of liquid, allows for flushing of the anastomosis or tightness testing, and the water valve facilitates the regulation of the liquid flow rate.
[0040] Preferred, such as Figure 1 As shown, the operating tube 5 is provided with a first one-way valve 51 to prevent fluid from escaping.
[0041] The advantages of adopting the above preferred scheme are: the first one-way valve helps prevent gas and liquid injected into the intestine from escaping from the operating tube.
[0042] Preferred, such as Figure 1 As shown, the observation tube 6 is equipped with a second one-way valve 61 to prevent fluid from escaping.
[0043] The beneficial effect of adopting the above preferred scheme is that the second one-way valve helps prevent gas and liquid injected into the intestine from escaping from the observation tube.
[0044] Preferred, such as Figure 1 As shown, the imaging mechanism 7 includes: a display screen 71, a signal transmission line 72, and a camera 73. The two ends of the signal transmission line 72 are connected to the display screen 71 and the camera 73 respectively. The signal transmission line 72 can movably pass through the observation tube 6, the second one-way valve 61, the operating table 2, and the main channel 1.
[0045] The advantages of adopting the above-mentioned preferred solution are: the camera can help to reach the vicinity of the anastomosis after the carbon dioxide gas is delivered into the rectum through the gas delivery tube to establish the operating space, capture real-time images of the anastomosis, and transmit them to the external display screen through the signal transmission line, so as to help doctors intuitively evaluate the suturing quality of the anastomosis.
[0046] The working process of this utility model is described below:
[0047] like Figure 1 As shown, firstly, paraffin oil is used to fully lubricate the main channel 1 and the protective ring 11 at the front end of the main channel 1, and the main channel 1 is slowly pushed into the anus; then, the gas supply tube 3 is connected to an external gas source, and the gas flow rate is adjusted through the gas valve 31 to allow gas to enter the intestine and create space for operation and observation; next, the camera 73 and signal transmission line 72 are disinfected and passed through the observation tube 6, the second one-way valve 61, the operating table 2 and the main channel 1, and placed into the intestine. The camera is continuously advanced in the intestine to find the anastomosis and to observe whether the tissue around the anastomosis is ischemic.
[0048] Simultaneously, during the operation, the laparoscope used in the surgery can be used to monitor whether gas enters the abdominal cavity through the anastomosis, thereby verifying the tightness of the anastomosis. During the operation, the infusion tube 4 and water valve 41 can be used to connect external liquid to flush or disinfect the anastomosis as needed. When it is necessary to insert a rectal tube, the rectal tube can be inserted into the intestine through the operation tube 5 and placed at the front end of the anastomosis under the guidance of the real-time image, thereby expelling feces and other waste from the rectum and avoiding contamination of the anastomosis.
[0049] This utility model has the following beneficial effects:
[0050] Integrated design: Integrating multiple functions into one device, including observation, inflation, flushing and imaging, to facilitate comprehensive intraoperative examination of the anastomosis;
[0051] Direct visualization: The anastomosis is visualized through an observation tube and camera, allowing doctors to directly observe the blood supply and healing of the anastomosis.
[0052] Inflation test: Carbon dioxide gas is supplied through an air valve and an air delivery pipe to inflate the anastomosis joint to check its tightness;
[0053] Liquid flushing: The anastomosis is flushed by controlling the delivery of liquid through water valves and infusion tubes to remove blood clots and tissue fragments, and at the same time check for leaks at the anastomosis.
[0054] Multi-channel operation: The operating table is designed to allow simultaneous observation, inflation, irrigation and other operations, improving surgical efficiency;
[0055] Real-time imaging: The camera captures real-time images and transmits them to the display screen via a signal transmission line, providing doctors with a clear view of the anastomosis.
[0056] Easy to operate: Ensures that the device is easy to operate and allows surgeons to quickly learn how to use it during surgery;
[0057] Technological innovation: Innovating on the basis of existing technologies to provide a new intraoperative examination method and promote the development of medical device technology;
[0058] Cost-effectiveness: While ensuring the performance of the device, the cost is low, making it highly valuable and widely applicable in medical practice.
[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0061] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0062] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. An in-vivo colorectal anastomosis site inspection device, characterized by, include: Main channel (1), operating table (2), gas inlet tube (3), infusion tube (4), operating tube (5), observation tube (6) and imaging mechanism (7); The main channel (1) is connected to the operating table (2). The gas supply pipe (3), the infusion pipe (4), the operating pipe (5) and the observation pipe (6) are all sealed and installed on the operating table (2). The imaging mechanism (7) can move through the observation pipe (6), the operating table (2) and the main channel (1).
2. The device according to claim 1, wherein The main channel (1) is a tubular structure, and a protective ring (11) is wrapped around the outer wall of the end of the main channel (1) away from the operating table (2).
3. The device of claim 1, wherein the device is configured to be used in a procedure to examine a colorectal anastomosis. The operating table (2) is a tubular structure with a sealing plug (21) at one end away from the main channel (1). The gas delivery pipe (3), the liquid delivery pipe (4), the operating pipe (5) and the observation pipe (6) are all sealed on the sealing plug (21).
4. The device of claim 1, wherein the device is configured to be used in a procedure to examine a colorectal anastomosis. The gas pipeline (3) is equipped with a gas valve (31) for adjusting the gas flow rate.
5. The device of claim 1, wherein the device is configured to be used in a procedure to examine a colorectal anastomosis. The infusion tube (4) is equipped with a water valve (41) for adjusting the liquid flow rate.
6. The device of claim 1, wherein the device is configured to be used in a procedure to examine a colorectal anastomosis. The operating tube (5) is equipped with a first one-way valve (51) to prevent fluid from escaping.
7. The device of claim 1, wherein the device is configured to be used in a procedure to examine a colorectal anastomosis. The observation tube (6) is equipped with a second one-way valve (61) to prevent fluid from escaping.
8. The device of claim 7, wherein the device is configured to be inserted into the lumen of the colonoscope. The imaging mechanism (7) includes: a display screen (71), a signal transmission line (72) and a camera (73). The two ends of the signal transmission line (72) are connected to the display screen (71) and the camera (73) respectively. The signal transmission line (72) can pass through the observation tube (6), the second one-way valve (61), the operating table (2) and the main channel (1).