A local directional imaging device for digestive tract tumor surgery

Abstract

The present invention discloses a device for local intestinal directional radiography for digestive tract tumor surgery, comprising an interventional tube, an operating mechanism, and a conveying mechanism. The interventional tube is provided with an interventional mechanism at one end; the interventional mechanism comprises a first positioning mechanism and a second positioning mechanism; the first positioning mechanism comprises a drainage tube, a first trachea, a confluence bin, and a first gas bin; the second positioning mechanism comprises an infusion tube, a second trachea, a diversion bin, and a second gas bin; the first positioning mechanism and the second positioning mechanism are both provided with an isolation sleeve and a spring, and the first trachea and the second trachea are both connected to the output end of an air pump. The present invention can isolate a section of space in the intestine, inject contrast fluid for local radiography, discharge the contrast fluid after radiography, and flush the radiography area to reduce patient discomfort caused by residual contrast fluid in the digestive tract.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an intestinal local directional angiography device for digestive tract tumor surgery. Background Art

[0002] The digestive tract, which includes the esophagus, stomach, small intestine, and large intestine, is composed of soft tissue and lacks natural contrast. Therefore, X-ray examinations of the digestive tract are ineffective. Contrast imaging is commonly used to examine the digestive tract. Contrast imaging can not only reveal the morphological and functional changes of digestive tract lesions, but also reveal the extent and nature of certain lesions outside the digestive tract. It has a wide range of clinical applications and is often used to diagnose various digestive tract diseases.

[0003] Existing methods for gastrointestinal imaging include barium meal administration and enema injection. For the lower gastrointestinal tract, barium meal administration requires time for the barium meal to flow into the intestines, while enema injection is only suitable for imaging the large intestine and not the small intestine. Furthermore, both barium meal administration and enema injection are often difficult to precisely control the imaging location. Furthermore, as the contrast agent diffuses within the digestive tract, gas in the intestines creates cavities, preventing the contrast agent from fully dispersing throughout the intestine. This results in blank areas in the imaging image, impacting diagnostic results.

[0004] For patients requiring precise contrast imaging of specific intestinal locations, the natural peristaltic action of the intestines can cause the contrast agent to remain in the examination area for too short a time, or to flow through the examination area, making a contrast diagnosis impossible. Furthermore, for precise examinations of specific locations, the contrast agent must be stably and adequately retained within the intestine. Existing contrast agent administration methods, such as swallowing or enema, do not address this technical issue. Existing enema imaging techniques require placing a contrast agent delivery tube through the rectum into the patient's digestive tract. An operating handle controls the position of the contrast agent delivery tube within the intestine, and an external pump is used to inject the contrast agent through the delivery tube into the imaging location to achieve precise, directional imaging. Furthermore, while contrast agents pose little risk to the human body, some patients may develop allergic reactions to them. Contrast agents are often excreted naturally, remaining in the patient's intestines for a period of time, which can easily cause physiological discomfort. There is a lack of technical means to rapidly expel the contrast agent. Summary of the Invention

[0005] The purpose of the present invention is to provide a local directional intestinal angiography device for digestive tract tumor surgery to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for intestinal local directional angiography for digestive tract tumor surgery, comprising an interventional tube, an operating mechanism, and a conveying mechanism, wherein one end of the interventional tube is provided with an interventional mechanism;

[0007] The intervention mechanism includes a first positioning mechanism and a second positioning mechanism;

[0008] The first positioning mechanism includes a liquid discharge pipe, a first air pipe, a confluence chamber, and a first air chamber. The liquid discharge pipe is connected to the surface of the first positioning mechanism through the confluence chamber, and the first air pipe is connected to the interior of the first positioning mechanism through the first air chamber.

[0009] The second positioning mechanism includes a liquid infusion tube, a second air tube, a shunt chamber, and a second air tube. The liquid infusion tube is connected to the surface of the second positioning mechanism through the shunt chamber, and the second air tube is connected to the interior of the second positioning mechanism through the second air tube.

[0010] The first positioning mechanism and the second positioning mechanism are both provided with an isolation sleeve and a spring, and the spring is located inside the isolation sleeve; the guide wire, the second positioning mechanism and one end of the interventional tube are all connected to the operating mechanism;

[0011] The conveying mechanism includes a peristaltic pump and an air pump. The drainage tube and the infusion tube are respectively arranged on both sides of the output end of the peristaltic pump. The first air tube and the second air tube are both connected to the output end of the air pump.

[0012] Preferably, the interventional mechanism further includes a guide wire, which is inserted into the interventional tube.

[0013] Preferably, the operating mechanism includes an expansion sleeve, a first handle, a second handle and a third handle;

[0014] The expansion sleeve is slidably sleeved on the surface of the intervention tube. The expansion sleeve is located on one side of the first handle, the second handle is located on the other side of the first handle, and the third handle is located at the end of the intervention tube.

[0015] Preferably, the inner wall of the first handle is fixedly connected to the surface of the interventional tube, the second handle is slidably sleeved on the surface of the interventional tube, and both sides of the inner wall of the second handle are fixedly connected to the outer walls of the infusion tube and the second trachea respectively.

[0016] Preferably, the third handle is fixedly connected to the end of the guide wire, and a steering wire is provided at one end of the guide wire away from the third handle. The steering wire is designed in an arc shape, and a round head is provided at one end of the steering wire.

[0017] Preferably, the inner wall of one end of the first positioning mechanism facing away from the second positioning mechanism is fixedly connected to the outer wall of one end of the intervention tube, and the other end of the first positioning mechanism is slidably sleeved on the surface of the intervention tube.

[0018] Preferably, the confluence chamber and the first gas chamber are located inside a side adjacent to the first positioning mechanism and the second positioning mechanism;

[0019] The diversion chamber and the second gas chamber are located inside a side adjacent to the second positioning mechanism and the first positioning mechanism.

[0020] Preferably, the surface of the interventional tube is provided with catheter grooves evenly distributed in a circular array, and the drainage tube, the first trachea, the infusion tube and the second trachea are all plugged into the catheter grooves.

[0021] Preferably, the interventional mechanism and the interventional tube are both designed with flexible non-metallic materials.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention achieves the effect of intervening at different locations in the patient's digestive tract by providing an interventional mechanism. The second positioning mechanism moves along the surface of the interventional tube, adapting to different intestinal examination ranges. The isolation sleeves on the surfaces of the first and second positioning mechanisms expand to isolate the intestinal space between the first and second positioning mechanisms, facilitating accurate directional imaging diagnosis.

[0024] 2. The present invention achieves the effect of injecting contrast agent into the isolated intestinal space and discharging contrast agent and cleaning agent by setting up a drainage tube and an infusion tube. Cooperating with the diversion chamber and the confluence chamber, the contrast agent is injected into the isolated intestinal space, and the contrast agent can be fully injected into the isolated intestine to ensure the effect of the contrast examination;

[0025] 3. The present invention achieves the effect of flexibly controlling the position of the interventional mechanism in the digestive tract by setting an operating mechanism. The first handle is used to control the penetration distance of the interventional tube, the second handle is used to control the spacing between the second positioning mechanism and the first positioning mechanism, and the third handle is used to control the guidance and rotation of the guide wire, thereby realizing flexible movement of the interventional mechanism in the digestive tract. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the appearance and structure of the interventional mechanism of the present invention;

[0027] Figure 2 This is a schematic diagram of the appearance structure of the operating mechanism of the present invention;

[0028] Figure 3 It is a schematic diagram of the appearance structure of the conveying mechanism of the present invention;

[0029] Figure 4 This is a schematic diagram of the partial structure of the guide wire of the present invention;

[0030] Figure 5This is a schematic diagram of the side view of the interventional tube cross section and the second handle of the present invention;

[0031] Figure 6 This is a schematic diagram of the main cross-sectional structure of the first positioning mechanism of the present invention;

[0032] Figure 7 It is a side cross-sectional structural schematic diagram of the second positioning mechanism of the present invention in an expanded state.

[0033] In the figure: 100, interventional mechanism; 110, guide wire; 111, steering wire; 112, round head; 120, first positioning mechanism; 121, drainage tube; 122, first trachea; 123, confluence chamber; 124, first air chamber; 130, second positioning mechanism; 131, infusion tube; 132, second trachea; 133, shunt chamber; 134, second air chamber; 200, interventional tube; 210, catheter groove; 300, operating mechanism; 310, expansion sleeve; 320, first handle; 330, second handle; 340, third handle; 400, conveying mechanism; 410, peristaltic pump; 420, air pump; 500, isolation sleeve; 600, spring. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The present invention provides the following two embodiments:

[0036] Example 1:

[0037] See also Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7, a local directional imaging device for the intestine used in digestive tract tumor surgery, including an interventional tube 200, with an interventional mechanism 100 provided at one end of the interventional tube 200; the interventional mechanism 100 and the interventional tube 200 are both designed with flexible non-metallic materials. The use of flexible non-metallic materials allows the interventional mechanism 100 and the interventional tube 200 to be flexibly bent, making them more suitable for use in the intestinal environment. Based on the position of the digestive tract to be examined, medical staff insert the interventional mechanism 100 into the intestine through the patient's anus. An appropriate amount of lubricant is applied to the surface of the interventional mechanism 100 to reduce the patient's discomfort. During the interventional process, an X-ray detection instrument can be combined to assist in controlling the progress of the intervention. During the operation, the interventional mechanism 100 is inserted into the patient's intestine, and the operating mechanism 300 is kept outside the patient's body, which is conducive to controlling the position of the interventional mechanism 100 through the operating mechanism 300.

[0038] The interventional mechanism 100 includes a guide wire 110, a first positioning mechanism 120, and a second positioning mechanism 130. The guide wire 110 is inserted into the interior of the interventional tube 200. A steering wire 111 is provided at the end of the guide wire 110 that is away from the third handle 340. The steering wire 111 is designed in an arc shape, and a round head 112 is provided at one end of the steering wire 111. At the turning position of the intestine, medical staff can use the third handle 340 to push the guide wire 110 out of the interventional tube 200. The arc-shaped steering wire 111 in front of the guide wire 110 can smoothly pass through the turning point of the intestine. Then, the interventional tube 200 is driven to move along the guide wire 110 through the first handle 320, thereby achieving the effect of the interventional mechanism 100 turning in the intestine, which is suitable for navigating complex digestive tracts.

[0039] See also Figure 1 and Figure 6 , the first positioning mechanism 120 and the second positioning mechanism 130 are both disposed on the surface of the interventional tube 200;

[0040] The first positioning mechanism 120 includes a drain pipe 121, a first air pipe 122, a confluence bin 123 and a first air bin 124. The drain pipe 121 is connected to the surface of the first positioning mechanism 120 through the confluence bin 123, and the first air pipe 122 is connected to the interior of the first positioning mechanism 120 through the first air bin 124.

[0041] The gas, body fluid, contrast agent and cleaning fluid in the diagnostic intestine can enter the confluence bin 123, and the confluence bin 123 can discharge the collected medium through the drain pipe 121; the first air pipe 122 can divert the pumped air through the first air bin 124 and evenly inject it into the first positioning mechanism 120, thereby increasing the air volume inside the first positioning mechanism 120, thereby expanding the isolation sleeve 500 on the surface of the first positioning mechanism 120, and achieving an isolation effect on the upstream of the intestine to be diagnosed.

[0042] See also Figure 1 and Figure 7 The second positioning mechanism 130 includes an infusion tube 131, a second air tube 132, a diversion chamber 133 and a second air chamber 134. The infusion tube 131 is connected to the surface of the second positioning mechanism 130 through the diversion chamber 133, and the second air tube 132 is connected to the interior of the second positioning mechanism 130 through the second air chamber 134.

[0043] The contrast agent and cleaning fluid transmitted by the infusion tube 131 can be diverted through the diversion chamber 133 and injected into the intestinal space between the first positioning mechanism 120 and the second positioning mechanism 130; the second air tube 132 can divert the pumped air through the second air chamber 134 and evenly inject it into the second positioning mechanism 130, thereby increasing the air volume inside the second positioning mechanism 130, thereby expanding the isolation sleeve 500 on the surface of the second positioning mechanism 130, and achieving an isolation effect on the downstream of the intestine to be diagnosed.

[0044] The first trachea 122 and the second trachea 132 respectively transport air to the first positioning mechanism 120 and the second positioning mechanism 130. After the air volume inside the first positioning mechanism 120 and the second positioning mechanism 130 increases, the isolation sleeve 500 is expanded to increase the outer wall diameter of the first positioning mechanism 120 and the second positioning mechanism 130. The expanded isolation sleeve 500 contacts the inner wall of the intestine, thereby fitting the first positioning mechanism 120 and the second positioning mechanism 130 to the two ends of the digestive tract position to be inspected, thereby achieving the effect of isolating the inspection position in the digestive tract.

[0045] Both the first positioning mechanism 120 and the second positioning mechanism 130 are internally provided with an isolation sleeve 500 and a spring 600. The spring 600 is located within the isolation sleeve 500 and is designed using a non-metallic elastic material, specifically polytetrafluoroethylene. The isolation sleeve 500 is designed using a medical rubber material and exhibits excellent elasticity. During the interventional procedure, the spring 600 uses its elastic force to stretch the first and second positioning mechanisms 120, 130, maintaining the outer diameter of the isolation sleeve 500 consistent with that of the first and second positioning mechanisms 120, 130. This facilitates the smooth insertion of the interventional mechanism 100 into the digestive tract, reduces patient discomfort, and facilitates the operation for medical staff.

[0046] See also Figure 2 and Figure 5 An operating mechanism 300 is provided at one end of the intervention tube 200 away from the intervention mechanism 100, and the operating mechanism 300 includes an expansion sleeve 310, a first handle 320, a second handle 330 and a third handle 340; the expansion sleeve 310 is slidably sleeved on the surface of the intervention tube 200, the expansion sleeve 310 is located on one side of the first handle 320, the second handle 330 is located on the other side of the first handle 320, and the third handle 340 is located at the end of the intervention tube 200.

[0047] The inner wall of the first handle 320 is fixedly connected to the surface of the interventional tube 200, the second handle 330 is slidably sleeved on the surface of the interventional tube 200, and the two sides of the inner wall of the second handle 330 are respectively fixedly connected to the outer walls of the infusion tube 131 and the second trachea 132, and the third handle 340 is fixedly connected to the end of the guide wire 110.

[0048] The first positioning mechanism 120 and the second positioning mechanism 130 are symmetrically distributed. The inner wall of one end of the first positioning mechanism 120 away from the second positioning mechanism 130 is fixedly connected to the outer wall of one end of the interventional tube 200, and the other end of the first positioning mechanism 120 is slidably sleeved on the surface of the interventional tube 200.

[0049] The surface of the interventional tube 200 is provided with catheter grooves 210 evenly distributed in a circular array. The drainage tube 121 , the first air tube 122 , the infusion tube 131 and the second air tube 132 are all plugged into the catheter grooves 210 .

[0050] Medical personnel control the position of the interventional mechanism 100 in the intestine using the first handle 320. After the first positioning mechanism 120 is placed on one side of the intestinal location to be diagnosed, the second handle 330 is used to drive the infusion tube 131 and the second air tube 132 to slide along the inside of the catheter groove 210. During the movement of the infusion tube 131 and the second air tube 132, the second positioning mechanism 130 can be pulled to move along the surface of the interventional tube 200, thereby adjusting the position between the second positioning mechanism 130 and the first positioning mechanism 120 so that the second positioning mechanism 130 is located on the other side of the intestinal location to be diagnosed. By distributing the first positioning mechanism 120 and the second positioning mechanism 130 on both sides of the intestinal location to be diagnosed, it is convenient to isolate the intestinal location to be diagnosed from the rest of the intestinal internal space, thereby performing local radiographic diagnosis.

[0051] See also Figure 3 , the conveying mechanism 400 includes a peristaltic pump 410 and an air pump 420;

[0052] The drainage tube 121 and the infusion tube 131 are respectively arranged on both sides of the lower end of the peristaltic pump 410;

[0053] The end of the drainage tube 121 can be plugged into the waste liquid tank, and the end of the infusion tube 131 can be plugged into the cleaning liquid tank and the contrast liquid tank respectively;

[0054] The first air tube 122 and the second air tube 132 are both connected to the output end of the air pump 420. The air pump 420 is turned on to deliver air to the first positioning mechanism 120 and the second positioning mechanism 130 through the first air tube 122 and the second air tube 132, respectively. After the volume of air inside the first positioning mechanism 120 and the second positioning mechanism 130 increases, the isolation sleeve 500 is expanded. The expanded isolation sleeve 500 contacts the inner wall of the intestine, thereby fitting the first positioning mechanism 120 and the second positioning mechanism 130 to the two ends of the digestive tract position to be inspected, thereby isolating the inspection position in the digestive tract. After the expansion of the isolation sleeve 500 is completed, the air pump 420 is stopped to maintain a constant pressure inside the isolation sleeve 500.

[0055] The output end of peristaltic pump 410 rotates and synchronously presses infusion tube 131 and drainage tube 121, injecting contrast agent along infusion tube 131. The contrast fluid enters diversion chamber 133 through infusion tube 131 and enters the intestine between first positioning mechanism 120 and second positioning mechanism 130. Furthermore, the synchronous rotation of peristaltic pump 410 and the pressing of drainage tube 121 can transfer gas in the intestine between first positioning mechanism 120 and second positioning mechanism 130 outward, maintaining constant pressure in the diagnostic intestine and preventing gas from forming cavitation bubbles that affect diagnostic results. After infusion tube 131 fills the diagnostic intestine with contrast agent, peristaltic pump 410 is stopped, and contrast imaging diagnosis can be performed.

[0056] After the angiography diagnosis is completed, the medical staff transfers the infusion tube 131 from the contrast fluid tank to the cleaning fluid tank, turns on the peristaltic pump 410, and injects the cleaning saline into the diagnostic intestine through the infusion tube 131, and discharges the saline and contrast agent into the waste liquid tank through the drainage tube 121 until all the contrast fluid is discharged. The cleaning waste liquid is then collected from the waste liquid tank for subsequent treatment, which can effectively avoid the discomfort caused by the contrast agent remaining in the patient's intestine.

[0057] After the contrast agent and cleaning fluid are emptied, the medical staff separates the first trachea 122 and the second trachea 132 from the air pump 420, and the air inside the isolation sleeve 500 is discharged. The spring 600 stretches the first positioning mechanism 120 and the second positioning mechanism 130 through elastic force, and resets the isolation sleeve 500, keeping the outer wall diameter of the isolation sleeve 500 the same as the outer wall diameter of the first positioning mechanism 120 and the second positioning mechanism 130, so as to facilitate the medical staff to withdraw the interventional mechanism 100 and the interventional tube 200 from the patient's intestine, complete the local angiography diagnosis, and conduct comprehensive cleaning and disinfection of the equipment for subsequent use.

[0058] Example 2:

[0059] During actual application, the first positioning mechanism 120 is located upstream of the angiography diagnosis position, and the second positioning mechanism 130 is located downstream of the angiography diagnosis position. When the interventional mechanism 100 is in the intestine, the contrast agent is changed to be input into the intestine by the first positioning mechanism 120 or the second positioning mechanism 130 according to the distribution position of the interventional mechanism 100 in the intestine and the body position of the angiography diagnosis.

[0060] When the horizontal height of the first positioning mechanism 120 is greater than the horizontal height of the second positioning mechanism 130 , the contrast agent and cleaning fluid are input into the imaging intestine through the infusion tube 131 . When the contrast agent is injected into the intestine, the gas in the intestine is discharged from below the first positioning mechanism 120 .

[0061] When the horizontal height of the second positioning mechanism 130 is greater than that of the first positioning mechanism 120 , the contrast agent and the cleaning agent are input into the imaging intestine through the drainage tube 121 . When the contrast agent is injected into the intestine, the gas in the intestine is discharged from above the second positioning mechanism 130 .

[0062] The contrast agent input pipeline is determined based on the patient's posture during the imaging process, which is conducive to emptying the air in the intestine during imaging diagnosis and ensuring the clarity and accuracy of the imaging.

[0063] Working principle: During clinical use, medical staff pre-inject physiological saline for cleaning the digestive tract into the cleaning fluid tank, inject evenly mixed contrast fluid into the contrast fluid tank, insert the infusion tube 131 into the bottom end of the contrast fluid tank, and insert the drainage tube 121 into the bottom end of the waste fluid tank. Then, the infusion tube 131 and the drainage tube 121 are respectively installed on both sides of the output end of the peristaltic pump 410, and at the same time, the first air tube 122 and the second air tube 132 are connected to the output end of the air pump 420, and keep in standby mode.

[0064] According to the position of the digestive tract to be examined, the medical staff inserts the interventional mechanism 100 into the intestine through the patient's anus, applies a proper amount of lubricant on the surface of the interventional mechanism 100 to reduce the patient's discomfort, inserts the interventional mechanism 100 into the patient's intestine, and keeps the operating mechanism 300 outside the patient's body, which is convenient for controlling the position of the interventional mechanism 100 through the operating mechanism 300. During the intervention process, X-ray detection equipment can be used to assist in controlling the progress of the intervention, and at the turning position of the intestine, the medical staff can use the third handle 340 to push the guide wire 110 out of the intervention tube 200, and the arc-shaped steering wire 111 in front of the guide wire 110 can smoothly pass through the turning point of the intestine. Then, the first handle 320 is used to drive the interventional tube 200 to move along the guide wire 110, so as to achieve the effect of the interventional mechanism 100 turning in the intestine, which is suitable for entering a complex digestive tract. During the intervention process, the spring 600 stretches the first positioning mechanism 120 and the second positioning mechanism 130 through elastic force, keeping the outer wall diameter of the isolation sleeve 500 consistent with the outer wall diameter of the first positioning mechanism 120 and the second positioning mechanism 130, which is conducive to the smooth intervention of the intervention mechanism 100 in the digestive tract, reduces the patient's discomfort and facilitates the operation of medical staff.

[0065] Medical personnel control the position of the interventional mechanism 100 in the intestine using the first handle 320. After the first positioning mechanism 120 is placed on one side of the intestinal location to be diagnosed, the second handle 330 is used to drive the infusion tube 131 and the second air tube 132 to slide along the inside of the catheter groove 210. During the movement of the infusion tube 131 and the second air tube 132, the second positioning mechanism 130 can be pulled to move along the surface of the interventional tube 200, thereby adjusting the position between the second positioning mechanism 130 and the first positioning mechanism 120 so that the second positioning mechanism 130 is located on the other side of the intestinal location to be diagnosed. By distributing the first positioning mechanism 120 and the second positioning mechanism 130 on both sides of the intestinal location to be diagnosed, it is convenient to isolate the intestinal location to be diagnosed from the rest of the intestinal internal space, thereby performing local radiographic diagnosis.

[0066] When the first positioning mechanism 120 and the second positioning mechanism 130 are moved to specific positions, the air pump 420 is turned on to deliver air to the first positioning mechanism 120 and the second positioning mechanism 130 through the first air tube 122 and the second air tube 132 respectively. After the air volume inside the first positioning mechanism 120 and the second positioning mechanism 130 increases, the isolation sleeve 500 is expanded to increase the outer wall diameter of the first positioning mechanism 120 and the second positioning mechanism 130. The expanded isolation sleeve 500 contacts the inner wall of the intestine, thereby fitting the first positioning mechanism 120 and the second positioning mechanism 130 to the two ends of the digestive tract position to be inspected, thereby achieving the effect of isolating the inspection position in the digestive tract. After the expansion of the isolation sleeve 500 is completed, the air pump 420 is stopped to maintain a constant pressure inside the isolation sleeve 500.

[0067] Peristaltic pump 410 operates, and the output end of peristaltic pump 410 rotates and synchronously presses infusion tube 131 and drainage tube 121, injecting contrast agent along infusion tube 131. The contrast fluid enters diversion chamber 133 through infusion tube 131, and then is injected into the intestine between first positioning mechanism 120 and second positioning mechanism 130. Peristaltic pump 410 also rotates and presses drainage tube 121 synchronously, which can transmit gas in the intestine between first positioning mechanism 120 and second positioning mechanism 130 outward, maintaining constant pressure in the diagnostic intestine and preventing gas from forming cavitation bubbles that affect diagnostic results. After infusion tube 131 fills the diagnostic intestine with contrast agent, peristaltic pump 410 stops operating, and contrast imaging diagnosis can be performed.

[0068] After the angiography diagnosis is completed, the medical staff transfers the infusion tube 131 from the contrast fluid tank to the cleaning fluid tank, turns on the peristaltic pump 410, and injects the cleaning saline into the diagnostic intestine through the infusion tube 131, and discharges the saline and contrast agent into the waste liquid tank through the drainage tube 121 until all the contrast fluid is discharged. The cleaning waste liquid is then collected from the waste liquid tank for subsequent treatment, which can effectively avoid the discomfort caused by the contrast agent remaining in the patient's intestine.

[0069] After the contrast agent and cleaning fluid are emptied, the medical staff separates the first trachea 122 and the second trachea 132 from the air pump 420, and the air inside the isolation sleeve 500 is discharged. The spring 600 stretches the first positioning mechanism 120 and the second positioning mechanism 130 through elastic force, and resets the isolation sleeve 500, keeping the outer wall diameter of the isolation sleeve 500 the same as the outer wall diameter of the first positioning mechanism 120 and the second positioning mechanism 130, so as to facilitate the medical staff to withdraw the interventional mechanism 100 and the interventional tube 200 from the patient's intestine, complete the local angiography diagnosis, and conduct comprehensive cleaning and disinfection of the equipment for subsequent use.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for local intestinal directional imaging used in digestive tract tumor surgery, characterized by: It comprises an intervention tube (200), an operating mechanism (300) and a conveying mechanism (400), wherein one end of the intervention tube (200) is provided with the intervention mechanism (100); The intervention mechanism (100) includes a first positioning mechanism (120) and a second positioning mechanism (130); The first positioning mechanism (120) comprises a liquid discharge pipe (121), a first air pipe (122), a confluence chamber (123), and a first air chamber (124); the liquid discharge pipe (121) is connected to the surface of the first positioning mechanism (120) through the confluence chamber (123); and the first air pipe (122) is connected to the interior of the first positioning mechanism (120) through the first air chamber (124); The second positioning mechanism (130) comprises a liquid infusion tube (131), a second air tube (132), a diversion chamber (133), and a second air chamber (134); the liquid infusion tube (131) is connected to the surface of the second positioning mechanism (130) through the diversion chamber (133); and the second air tube (132) is connected to the interior of the second positioning mechanism (130) through the second air chamber (134); The first positioning mechanism (120) and the second positioning mechanism (130) are both provided with an isolation sleeve (500) and a spring (600), and the spring (600) is located inside the isolation sleeve (500); the intervention mechanism (100) further comprises a guide wire (110), and the guide wire (110) is inserted into the intervention tube (200); one end of the guide wire (110), the second positioning mechanism (130) and the intervention tube (200) are all connected to the operating mechanism (300); The conveying mechanism (400) includes a peristaltic pump (410) and an air pump (420), the drainage tube (121) and the infusion tube (131) are respectively arranged on both sides of the output end of the peristaltic pump (410), and the first air tube (122) and the second air tube (132) are both connected to the output end of the air pump (420).

2. The intestinal local directional imaging device for digestive tract tumor surgery according to claim 1, characterized in that: The operating mechanism (300) comprises an expansion sleeve (310), a first handle (320), a second handle (330), and a third handle (340); The expansion sleeve (310) is slidably sleeved on the surface of the intervention tube (200), the expansion sleeve (310) is located on one side of the first handle (320), the second handle (330) is located on the other side of the first handle (320), and the third handle (340) is located at the end of the intervention tube (200).

3. The intestinal local directional imaging device for digestive tract tumor surgery according to claim 2, characterized in that: The inner wall of the first handle (320) is fixedly connected to the surface of the intervention tube (200), the second handle (330) is slidably sleeved on the surface of the intervention tube (200), and both sides of the inner wall of the second handle (330) are fixedly connected to the outer walls of the infusion tube (131) and the second trachea (132), respectively.

4. The intestinal local directional imaging device for digestive tract tumor surgery according to claim 3, characterized in that: The third handle (340) is fixedly connected to the end of the guide wire (110), and a steering wire (111) is provided at one end of the guide wire (110) away from the third handle (340). The steering wire (111) is designed in an arc shape, and a round head (112) is provided at one end of the steering wire (111).

5. The intestinal local directional imaging device for digestive tract tumor surgery according to claim 1, characterized in that: The inner wall of one end of the first positioning mechanism (120) facing away from the second positioning mechanism (130) is fixedly connected to the outer wall of one end of the intervention tube (200), and the other end of the first positioning mechanism (120) is slidably sleeved on the surface of the intervention tube (200).

6. The intestinal local directional imaging device for digestive tract tumor surgery according to claim 1 or 5, characterized in that: The confluence chamber (123) and the first gas chamber (124) are located inside a side adjacent to the first positioning mechanism (120) and the second positioning mechanism (130); The diversion chamber (133) and the second gas chamber (134) are located inside the second positioning mechanism (130) on a side adjacent to the first positioning mechanism (120).

7. The intestinal local directional imaging device for digestive tract tumor surgery according to claim 1, characterized in that: The surface of the interventional tube (200) is provided with catheter grooves (210) uniformly distributed in a circular array, and the drainage tube (121), the first trachea (122), the infusion tube (131) and the second trachea (132) are all plugged into the catheter grooves (210).

8. The intestinal local directional imaging device for digestive tract tumor surgery according to claim 1, characterized in that: The intervention mechanism (100) and the intervention tube (200) are both designed using flexible non-metallic materials.

Images