Multifunctional flushing device for hepatobiliary postoperative drainage

Abstract

The invention relates to the field of medical instruments, in particular to a multifunctional flushing device for hepatobiliary postoperative drainage, which comprises a flushing tube and a drainage tube, a flushing angle regulator is arranged at a liquid outlet of the flushing pipe and is used for changing the flushing angle; a transparent observation window is arranged on the drainage tube, a collector is arranged outside the observation window, and the collector is used for collecting visual information of drainage liquid in the drainage tube; the system further comprises a controller, the controller is used for analyzing hematocele and hydrops distribution in the hydrops cavity of the patient based on the visual information at all flushing angles, the flushing angle adjuster is adjusted according to the hematocele and hydrops distribution in the hydrops cavity of the patient, and the duration of flushing acting on hematocele and hydrops is prolonged. When flushing acts on the wound surface, the flushing angle is aligned with the upper portion of the wound surface. By the adoption of the technical scheme, the flushing position is adjusted according to the color of the drainage liquid after flushing, so that the flushing effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a multifunctional flushing device for post-hepatic and biliary drainage. Background Art

[0002] Continuous flushing and negative pressure drainage after hepato-biliary surgery is a technique that combines continuous flushing and negative pressure suction. Through one tube of a double-lumen drainage tube, normal saline or liquid containing antibiotics is input, and the other tube is connected to a negative pressure device to dynamically remove exudate, necrotic tissue, and pollutants in the surgical area, reduce the risk of infection, and promote wound healing. It is applicable to scenarios such as high-risk infection, bile fistula, abscess, or abdominal cavity contamination after complex hepato-biliary surgery. During the operation, it is necessary to control the flushing speed and negative pressure range, closely observe the properties and volume of the drainage fluid, and be vigilant against complications such as tube blockage, electrolyte disorder, or secondary infection. The tube can be removed when the drainage fluid is clear and the daily volume is < 50 ml and the infection indicators are normal.

[0003] In the prior art, for example, the patent publication number CN118001494A discloses an automatically adjustable bladder flushing device that adjusts the flushing speed by detecting the color of the drainage fluid after flushing. The patent publication number CN115227900A discloses a multi-directional bladder flushing device for urological care. By rotating the steel wire rope to drive the threaded rod to rotate, the flushing angle of the spray tube can be adjusted. During the flushing process, different flushing angles act on different positions in the fluid accumulation cavity, and different amounts of accumulated blood or fluid can be flushed. Therefore, a multifunctional flushing device for post-hepatic and biliary drainage that adjusts the flushing position according to the color of the drainage fluid after flushing to improve the flushing effect is needed. However, after flushing, both the accumulated blood and fluid will be diluted, and their color characteristics are not obvious, making it difficult to respond sensitively. Moreover, pigments will adhere to the inner side of the tube wall, interfering with the color judgment process, and timely cleaning is required. Summary of the Invention

[0004] To solve the above problems, the present invention provides a multifunctional flushing device for post-hepatic and biliary drainage, which is used to adjust the flushing position according to the color of the drainage fluid after flushing to improve the flushing effect.

[0005] To achieve the above object, the technical solution of the present invention is as follows: A multifunctional flushing device for post-hepatic and biliary drainage, comprising a flushing tube and a drainage tube;

[0006] A flushing angle adjuster is provided at the liquid outlet of the flushing tube, and the flushing angle adjuster is used to change the flushing angle;

[0007] A transparent observation window is provided on the drainage tube, and a collector is provided outside the observation window. The collector is used to collect the visual information of the drainage fluid in the drainage tube;

[0008] It also includes a controller which is used to analyze the distribution of blood stasis and effusion in the patient's effusion cavity based on the visual information at each flushing angle, and adjust the flushing angle regulator according to the distribution of blood stasis and effusion in the patient's effusion cavity, so as to increase the duration of flushing acting on the blood stasis and effusion.

[0009] The above-mentioned solution has the following beneficial effects:

[0010] 1. In this solution, the flushing tube is used to input normal saline or liquid containing antibiotics to flush the postoperative effusion cavity, and the drainage tube is connected to a negative pressure aspirator to drain the effusion and flushing fluid in the effusion cavity. The flushing angle regulator can change the flushing position and can be aligned with the depressions, gaps, etc. in the patient's effusion cavity to promote the outflow of blood stasis and effusion. Compared with relying only on gravity, the flushing has a stronger treatment effect, so that the blood stasis and effusion can be separated to facilitate flushing out.

[0011] 2. In this solution, the drained fluid after flushing will carry the effusion, blood, etc. flushed down. Therefore, by analyzing the components in the drained fluid, it is possible to know the flushing effect at the current angle and the severity of effusion and blood stasis at each position in the patient's effusion cavity, which is convenient for reasonably planning the proportion of flushing time at each angle.

[0012] 3. In this solution, the blood stasis is dark red, while the bleeding from the wound surface is bright red. Therefore, it is possible to distinguish the blood stasis and the bleeding from the wound surface by color. When the wound surface is located, the flushing angle for the wound surface should be raised so that the wound surface does not directly contact the flushing force to avoid irritating the wound surface. After raising the angle, the washing effect of the falling after flushing can be used to clean the wound surface.

[0013] Furthermore, the drainage tube includes a first tube segment and a second tube segment. The diameter of the second tube segment is larger than that of the first tube segment. The first tube segment is used to probe into the patient's effusion cavity for drainage;

[0014] The observation window is located on the second tube segment, and adsorption cilia are provided in the observation window.

[0015] Beneficial effect: The second tube segment is thicker than the drainage tube directly inserted into the patient's body and can accommodate more structures. Therefore, adsorption cilia are added in the second tube segment. The adsorption cilia can effectively adsorb the pigments in the drained fluid, thus playing a role in converging the pigments and can effectively reduce the problem of reduced recognition sensitivity caused by the dilution of blood stasis and effusion after flushing.

[0016] Furthermore, a one-way valve is provided in the first tube segment, and a cleaning tube is connected to the second tube segment. The cleaning tube is located on the side of the adsorption cilia close to the one-way valve, and the cleaning tube is used to release cleaning liquid to clean the adsorption cilia.

[0017] Beneficial effects: After the adsorption cilia are enriched with pigments, it is difficult to change along with the drainage stage. The flushing tube can externally pump cleaning liquid, so as to flush the pigments on the adsorption cilia with greater kinetic energy and flow rate. The one-way valve can prevent the backflow of the cleaning liquid, thus ensuring that the flushing liquid will not flow back through the first pipe segment.

[0018] Furthermore, a rotating ring is rotatably connected inside the second pipe segment. The adsorption cilia are located on the rotating ring, and a driving member is provided on the second pipe segment for driving the rotating ring to rotate.

[0019] Beneficial effects: The rotating ring can rotate at a high speed, and use centrifugal force to make the pigments separate. At the same time, it can also increase the distance between the adsorption cilia by swinging, so as to improve the contact effect between the adsorption cilia and the cleaning liquid, so as to quickly separate the pigments from the adsorption cilia.

[0020] Furthermore, a connecting frame is fixedly connected to the rotating ring, and a scraper is provided on the connecting frame, and the scraper abuts against the inner side wall of the observation window.

[0021] Beneficial effects: Pigments will also adhere to the inner side wall of the observation window, which will directly affect the collection effect of the collector. The scraper can rotate with the rotating ring, so as to scrape the observation window clean while cleaning the pigments on the adsorption cilia.

[0022] Furthermore, the adsorption cilia are made of super-adsorption fibers.

[0023] Beneficial effects: Super-adsorption fibers refer to fibers or non-woven fabrics with super-adsorption rate and adsorption capacity, which can effectively adsorb pigments in blood and effusion.

[0024] Furthermore, the first pipe segment and the second pipe segment are detachably connected.

[0025] Beneficial effects: The drainage tube is usually a disposable tube. The structure of the second pipe segment is complex and it does not directly contact the patient. Therefore, the first pipe segment and the second pipe segment are detachably connected, and the second pipe segment can be reused after disinfection.

[0026] Furthermore, the flushing angle adjuster includes a hose. One end of the hose is fixedly connected to the flushing tube, and the other end of the hose is fixedly connected to a rigid ring. A plurality of airbag columns are embedded in the hose, and a plurality of air pipes are embedded in the side wall of the flushing tube. The air pipes are all connected to an air pump, and the air pump is used to control the expansion and contraction of the airbag columns so as to control the turning of the rigid ring.

[0027] Beneficial effects: The flushing angle adjuster needs to follow the hose into the patient's body, so a miniaturized design is required. Conventional electric control driving members are relatively large. Therefore, the airbag column design is adopted, and the expansion and contraction of the airbag columns are controlled by using the miniature air pipes embedded in the side wall of the flushing tube, so as to control the turning of the rigid ring outside the body, and further control the flushing direction of the flushing tube.

[0028] Further, the collector is a camera, the visual information is an image, and the controller is used to analyze the color value of the pigment adsorbed by the adsorption cilia through the image. When the color value is within the dark red threshold range, it is determined as hematoma. When the color value is within the yellowish-brown threshold range, it is determined as effusion.

[0029] Beneficial effects: It can directly judge hematoma and effusion through color information. Hematoma or old hemorrhage is dark red, showing that the drainage fluid is bright red, while effusion includes bile, pus, and lymphatic leakage, and the color ranges from light yellow to dark brown.

[0030] Further, the controller is also used to identify the number of necrotic tissue fragments and fibrin clots adsorbed by the adsorption cilia through image recognition. When the number exceeds the preset threshold, an infection risk warning signal is generated.

[0031] Beneficial effects: The wound surface of the patient may be infected. In addition to adsorbing pigments, the adsorption cilia will also adsorb necrotic tissue fragments and fibrin clots, so as to judge whether the patient is infected through the number of necrotic tissue fragments and fibrin clots.

[0032] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0033] Figure 1 It is a three-dimensional schematic diagram of the drainage tube of the embodiment of the multifunctional flushing device for postoperative drainage of the liver and gallbladder of the present invention;

[0034] Figure 2 It is an axonometric schematic diagram of the drainage tube of the embodiment of the multifunctional flushing device for postoperative drainage of the liver and gallbladder of the present invention;

[0035] Figure 3 It is a side view schematic diagram of the drainage tube of the embodiment of the multifunctional flushing device for postoperative drainage of the liver and gallbladder of the present invention;

[0036] Figure 4 It is a bottom view schematic diagram of the drainage tube of the embodiment of the multifunctional flushing device for postoperative drainage of the liver and gallbladder of the present invention;

[0037] Figure 5 It is a structural schematic diagram of the flushing tube of the embodiment of the multifunctional flushing device for postoperative drainage of the liver and gallbladder of the present invention.

[0038] The reference numerals in the accompanying drawings of the specification include: 1. Flushing tube; 2. Drainage tube; 3. Observation window; 4. Collector; 5. First pipe section; 6. Second pipe section; 7. Adsorption cilia; 8. Check valve; 9. Cleaning pipe; 10. Rotating ring; 11. Driving member; 12. Connecting frame; 13. Scraper; 14. Hose; 15. Rigid ring; 16. Airbag column; 17. Air pipe. Detailed Embodiments

[0039] To enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be further described in detail below in conjunction with the embodiments and drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0040] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with the embodiments.

[0041] Embodiment: As shown in the attached Figures 1 - 5 figure: A multifunctional flushing device for post-hepatic and biliary drainage includes a flushing tube 1 and a drainage tube 2;

[0042] The liquid outlet of the flushing tube 1 is provided with a flushing angle adjuster for changing the flushing angle. The flushing angle adjuster includes a flexible tube 14. One end of the flexible tube 14 is adhesively fixed to the flushing tube 1, and the other end of the flexible tube 14 is fixedly connected to a rigid ring 15. A number of airbag columns 16 are embedded in the flexible tube 14, and a number of air pipes 17 are embedded in the side wall of the flushing tube 1. The air pipes 17 are all connected to an air pump, and the air pump is used to control the expansion and contraction of the airbag columns 16 to control the rotation of the rigid ring 15.

[0043] The drainage tube 2 includes a first tube section 5 and a second tube section 6. The diameter of the second tube section 6 is larger than that of the first tube section 5. The first tube section 5 is used to probe into the patient's fluid accumulation cavity for drainage, and the first tube section 5 and the second tube section 6 are detachably connected by threads; a transparent observation window 3 is provided on the drainage tube 2, and a collector 4 is provided outside the observation window 3 for collecting visual information of the drainage fluid in the drainage tube 2; the observation window 3 is located at one end of the second tube section 6 close to the first tube section 5. A one-way valve 8 is provided in the first tube section 5. A rotating ring 10 is rotatably connected inside one end of the second tube section 6 close to the first tube section 5. A number of adsorption cilia 7 are adhesively fixed on the rotating ring 10, and the adsorption cilia 7 are made of super-adsorbent fibers. A driving member 11 is fixed to the second tube section 6 by screws for driving the rotating ring 10 to rotate. The driving member 11 is a hollow shaft motor. The first tube section 5 is located inside the opening of the hollow shaft of the hollow shaft motor, and the rotating ring 10 is fixedly connected to the hollow shaft. The second tube section 6 is communicated with a cleaning tube 9. The cleaning tube 9 is located on the side of the adsorption cilia 7 close to the one-way valve 8, and the cleaning tube 9 is used to release cleaning liquid to clean the adsorption cilia 7.

[0044] A connecting frame 12 is integrally formed on the rotating ring 10, and a scraper 13 is integrally formed on the connecting frame 12. The scraper 13 abuts against the inner side wall of the observation window 3.

[0045] It also includes a controller which is used to analyze the distribution of blood clots and effusion in the patient's effusion cavity based on the visual information at each flushing angle, and adjust the flushing angle regulator according to the distribution of blood clots and effusion in the patient's effusion cavity to increase the duration of flushing acting on the blood clots and effusion; when the flushing acts on the wound surface, the flushing angle is aligned above the wound surface. The collector 4 is a camera, the visual information is an image, and the controller is used to judge the blood clots, wound surface and effusion by the color of the pigment adsorbed by the adsorption cilia 7 in the image, wherein the blood clots are dark red and the effusion is brownish yellow. The controller is also used to judge whether the patient is infected by the number of necrotic tissue fragments and fibrin clots adsorbed by the adsorption cilia 7 through the image.

[0046] In use, the user constructs an incision so that the patient's effusion cavity can be inserted with the flushing tube 1 and the drainage tube 2 through the incision. The flushing tube 1 is connected to a flushing liquid source, and the flushing liquid can be normal saline, metronidazole / gentamicin, etc.; the drainage tube 2 is connected to a negative pressure aspirator, and the drainage tube 2 is used to suck out the drainage liquid generated after the flushing liquid flushes. The flushing angle regulator can change the flushing position and can be aligned with the depressions, gaps, etc. in the patient's effusion cavity to promote the outflow of blood clots and effusion. Compared with relying only on gravity, the flushing has a stronger treatment effect, so that the blood clots and effusion can be detached and thus easily flushed out.

[0047] The flushing angle regulator controls the flushing angle through the miniature trachea 17 embedded in the side wall of the flushing tube 1. The air pump used to drive the telescopic airbag column 16 can be located outside the patient's body and rely on the trachea 17 for air pressure control, so that the airbag column 16 can be telescopic. When the airbag column 16 contracts, the hard ring 15 at this airbag will approach the flushing tube 1, and other positions of the hard ring 15 can be tilted under the action of the hose 14, so as to adjust the flushing angle.

[0048] The drained liquid after flushing will carry the effusion, blood, etc. flushed down. Therefore, by analyzing the components and contents in the drained liquid, the flushing effect at the current angle and the severity of effusion and blood clots at each position in the patient's effusion cavity can be known, which is convenient for reasonably planning the flushing time ratio at each angle. Since there are differences in the colors of blood and effusion, the blood is divided into blood clots and fresh blood, which are dark red and bright red respectively, and the effusion is yellowish brown. Therefore, the components and contents of the drained liquid flushed out can be analyzed by color, so as to judge the situation at the flushing position corresponding to different flushing angles, and then understand the distribution of blood clots and effusion in the effusion cavity, reasonably allocate the flushing action time at each angle, and improve the flushing efficiency.

[0049] There may be surgical wounds left in the fluid accumulation cavity. Usually, fresh blood will ooze from the wounds. Therefore, the location of the wounds can be determined by detecting the flushing components in the drainage fluid. When the flushing angle is directly aimed at the wounds, it may stimulate the wounds and cause discomfort to the patient. After the wounds are located, the flushing angle is aimed above the wounds, so that the flushing fluid will impact the side wall of the fluid accumulation cavity, buffer the impact force, and flow downward under the action of gravity to clean the wounds.

[0050] After the blood is diluted by the flushing fluid, its color fades, making it difficult to effectively distinguish it from the color of the fluid accumulation, resulting in low detection sensitivity. Superabsorbent fiber refers to fibers or non-woven fabrics with a superabsorption rate and adsorption capacity, which can effectively adsorb the pigments in the blood and the fluid accumulation. The adsorption cilia 7 can effectively adsorb the pigments in the drainage fluid, thus playing a role in converging the pigments, and can effectively reduce the problem of reduced recognition sensitivity caused by the dilution of accumulated blood and fluid accumulation after flushing.

[0051] After the adsorption cilia 7 are enriched with pigments, it is difficult to change with the drainage stage, that is, the adsorption cilia 7 can only continuously increase the amount of attached pigments. The flushing tube 1 can pump cleaning fluid externally, so as to flush the pigments on the adsorption cilia 7 with greater kinetic energy and flow rate. The one-way valve 8 can prevent the cleaning fluid from flowing back, thus ensuring that the flushing fluid will not flow back through the first pipe section 5.

[0052] The rotating ring 10 can rotate at a high speed, use centrifugal force to make the pigments detach, and at the same time can also increase the spacing of the adsorption cilia 7 by swinging, so as to improve the contact effect between the adsorption cilia 7 and the cleaning fluid, so as to quickly make the pigments detach from the adsorption cilia 7.

[0053] Pigments will also adhere to the inner side wall of the observation window 3, which will directly affect the collection effect of the collector 4. The scraper 13 can rotate with the rotating ring 10 to scrape the observation window 3 clean while cleaning the pigments on the adsorption cilia 7.

[0054] The wounds of the patient may be infected. In addition to adsorbing pigments, the dense cilia structure of the adsorption cilia 7 will also adsorb necrotic tissue fragments and fibrin clots, so as to judge whether the patient is infected by the number of necrotic tissue fragments and fibrin clots.

[0055] Embodiment 2:

[0056] The difference from the above embodiment is that the flushing tube 1 enters the drainage tube 2 from the side wall of the first pipe section 5 of the drainage tube 2 and forms a double-tube structure with the drainage tube 2.

[0057] Compared with two pipelines and two incisions, the double-tube structure has a higher integration degree, can be deployed through fewer incision numbers, and can reduce the harm to the patient.

[0058] The above specific embodiments are only explanations of the present invention, and they are not limitations on the present invention. After reading this specification, those skilled in the art can make modifications to these embodiments that do not contribute creatively as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A multifunctional flushing device for postoperative drainage of the liver and gallbladder, characterized in that It includes a flushing tube (1) and a drainage tube (2); The liquid outlet of the flushing tube (1) is provided with a flushing angle regulator for changing the flushing angle; A transparent observation window (3) is provided on the drainage tube (2), and a collector (4) is provided outside the observation window (3) for collecting visual information of the drainage fluid in the drainage tube (2); It further includes a controller for analyzing the distribution of blood accumulation and fluid accumulation in the patient's fluid cavity based on the visual information at each flushing angle, and adjusting the flushing angle regulator according to the distribution of blood accumulation and fluid accumulation in the patient's fluid cavity to increase the duration of flushing acting on the blood accumulation and fluid accumulation.

2. The multifunctional flushing device for postoperative drainage of liver and gallbladder according to claim 1, wherein The drainage tube (2) includes a first tube section (5) and a second tube section (6), the diameter of the second tube section (6) is larger than that of the first tube section (5), and the first tube section (5) is used for probing into the patient's fluid cavity for drainage; The observation window (3) is located on the second tube section (6), and adsorption cilia (7) are provided inside the observation window (3).

3. The multifunctional flushing device for postoperative drainage of liver and gallbladder according to claim 2, wherein A one-way valve (8) is provided inside the first tube section (5), the second tube section (6) is communicated with a cleaning tube (9), the cleaning tube (9) is located on the side of the adsorption cilia (7) close to the one-way valve (8), and the cleaning tube (9) is used for releasing cleaning liquid to clean the adsorption cilia (7).

4. The multifunctional flushing device for postoperative drainage of liver and gallbladder according to claim 3, wherein, A rotating ring (10) is rotatably connected inside the second tube section (6), the adsorption cilia (7) are located on the rotating ring (10), and a driving member (11) is provided on the second tube section (6) for driving the rotating ring (10) to rotate.

5. The multifunctional flushing device for postoperative drainage of liver and gallbladder according to claim 4, wherein A connecting frame (12) is fixedly connected to the rotating ring (10), and a scraper (13) is provided on the connecting frame (12) which abuts against the inner side wall of the observation window (3).

6. The multifunctional flushing device for post-hepatic and biliary drainage according to claim 5, wherein, The adsorption cilia (7) are made of super adsorption fibers.

7. The multifunctional flushing device for postoperative drainage of the liver and gallbladder according to claim 6, characterized in that, The first tube section (5) and the second tube section (6) are detachably connected.

8. The multifunctional flushing device for postoperative drainage of liver and gallbladder according to claim 7, characterized in that, The flushing angle regulator includes a flexible tube (14), one end of the flexible tube (14) is fixedly connected to the flushing tube (1), the other end of the flexible tube (14) is fixedly connected to a rigid ring (15), several airbag columns (16) are embedded in the flexible tube (14), several air tubes (17) are embedded in the side wall of the flushing tube (1), and the air tubes (17) are all communicated with an air pump for controlling the expansion and contraction of the airbag columns (16) to control the rotation of the rigid ring (15).

9. The multifunctional flushing device for post-hepatic and post-biliary drainage according to claim 8, wherein, The collector (4) is a camera, the visual information is an image, and the controller is used for analyzing the color value of the pigment adsorbed by the adsorption cilia (7) through the image. When the color value is within the dark red threshold range, it is determined as blood accumulation, and when the color value is within the light yellow threshold range, it is determined as fluid accumulation.

10. The multifunctional flushing device for postoperative drainage of the liver and gallbladder according to claim 9, wherein, The controller is also used for identifying the number of necrotic tissue fragments and fibrin clots adsorbed by the adsorption cilia (7) through the image. When the number exceeds the preset threshold, an infection risk warning signal is generated.

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