CN111714759A

CN111714759A - Portable intestinal juice back-transfusion device

Info

Publication number: CN111714759A
Application number: CN202010756626.0A
Authority: CN
Inventors: 曾茵娟; 周佳亮; 朱小春
Original assignee: Guangdong Maternal and Child Health Hospital
Current assignee: Guangdong Maternal and Child Health Hospital
Priority date: 2020-06-16
Filing date: 2020-07-30
Publication date: 2020-09-29
Also published as: CN212940614U

Abstract

The invention discloses a portable intestinal juice feedback device, which belongs to the field of intestinal juice recovery devices and comprises a metering barrel for containing intestinal juice, a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet pipeline is used for connecting the metering barrel with the near end of an intestine and is communicated with the top end of the metering barrel, the liquid outlet pipeline is used for connecting the metering barrel with the far end of the intestine and is communicated with the bottom end of the metering barrel, a peristaltic pump is arranged on one side of the metering barrel, and the liquid outlet pipeline penetrates through a pump head of the peristaltic pump. The portable intestinal juice reinfusion device disclosed by the invention is small in volume and convenient to carry, can simulate the peristalsis of the intestines and slowly convey the intestinal juice, and is strong in practicability.

Description

Portable intestinal juice back-transfusion device

Technical Field

The invention relates to the field of intestinal juice reinfusion devices, in particular to a portable intestinal juice reinfusion device.

Background

An intestinal fistula generally refers to an abnormal passage between the stomach and the intestine and other hollow organs, or between the intestine and the abdominal cavity or outside the abdominal wall. Due to the existence of abnormal channels, the intestinal fistula easily causes the outflow of intestinal contents, thereby causing a series of pathological changes such as infection, nutrient solution and digestive juice loss, malnutrition and organ dysfunction, and the long-term nutrient solution and digestive juice loss can also destroy the homeostasis and the nutritional state of patients. In order to overcome the problems, in the clinical application, an intestinal fluid reinfusion device is adopted to reinfuse intestinal fluids such as nutrient solution, digestive juice and the like to a healthy intestinal tract, in the existing clinical practice, an ostomy bag is often adopted to recover the ostomy fluid at the near end of the intestine, then the ostomy fluid is conveyed to a large-volume ostomy recoverer by using an infusion pipeline to be buffered and output, and then the ostomy fluid is reinfused to the far end of the intestine through another long pipeline so as to be reinfused to the body of a patient, so that the practical use of the device is inconvenient. For example: 1. the return infusion process is complex, which is not beneficial to maintaining the timeliness of the fistulization liquid, and the intestinal probiotics are easy to pollute and denature in the return infusion process. 2. The infusion tube is too long and has no temperature guarantee, and the activity of digestive enzyme is easily lost. 3. The fistulization and the reinfusion take a long time, but the reinfusion machine is large, is not carried, needs to be bedridden for a long time and hospitalized, influences the moving range of the patient and is easy to cause complications. 4. The intestinal fluid infusion speed cannot be controlled in real time, and the intestinal fluid infusion speed is not controlled accurately. 5. If the existing feedback machine is adopted, the reflux speed of the fistulization liquid which is difficult to control is easily caused by short-distance conveying without long-distance conveying and buffering, and the slow movement of the intestinal liquid inside a similar human body cannot be ensured.

Chinese patent publication No. CN207768755U discloses a jejunostomy tube nutrient solution delivery device, which comprises a fluid infusion bag, a heater, a plug valve, a one-way valve, a rubber tube and a jejunostomy tube. The liquid supplementing bag is communicated with the jejunum fistulization tube through the rubber tube, the heater is arranged on the outer surface of the liquid supplementing bag, the plug valve is arranged on the rubber tube at the outlet of the liquid supplementing bag, and the one-way valve is arranged at the joint of the rubber tube and the jejunum fistulization tube. The one-way valve arranged on the pipeline can effectively prevent food from flowing back due to the increase of the pipe diameter. The pipeline below the fluid infusion bag is provided with a plug valve, so that the speed of food entering the intestines can be effectively controlled. The speed of food entering the intestines is controlled by the aid of the plug valve, the air pump is used for inflating to slowly pressurize the intestines to achieve the purpose of slowly supplementing nutrient solution, the device is difficult to use in the actual clinical process, mainly the peristalsis speed of small intestines is slow, the speed of the peristalsis speed is about 0.5-2.0cm/s, the opening degree of the plug valve can only be adjusted to be extremely small, obviously the extremely small opening degree is not suitable for high-viscosity intestinal juice, blockage is easy to occur, and the nutrient solution is supplemented by the aid of the handheld air pump and is difficult to control.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a portable intestinal juice feedback device which is portable in volume and can simulate the peristalsis of the intestine and slowly convey the intestinal juice.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a portable intestinal juice feedback device, which comprises a peristaltic pump and an intestinal juice conveying pipeline, wherein two ends of the intestinal juice conveying pipeline are respectively connected with an intestinal proximal end and an intestinal distal end, and the intestinal juice conveying pipeline penetrates through a pump head of the peristaltic pump.

The invention further adopts the technical scheme that the intestinal juice feeding device comprises a metering barrel for containing intestinal juice, the intestinal juice conveying pipeline comprises a liquid inlet pipeline and a liquid outlet pipeline, the liquid inlet pipeline is used for connecting the metering barrel with the near end of an intestine and is communicated with the top end of the metering barrel, the liquid outlet pipeline is used for connecting the metering barrel with the far end of the intestine and is communicated with the bottom end of the metering barrel, the peristaltic pump is positioned on one side of the metering barrel, and the liquid outlet pipeline penetrates through a pump head of the peristaltic pump.

The invention further adopts the technical scheme that the pump head comprises a pipe mounting frame and a rotor fixed with a plurality of rods, and a fixing groove for mounting the intestinal fluid conveying pipeline is arranged between the pipe mounting frame and the rotor.

The invention further adopts the technical scheme that the measuring tank further comprises a controller, at least one laser liquid level meter and a gravity sensor are arranged in the measuring tank, and the laser liquid level meter and the gravity sensor are electrically connected with the controller.

The gravity sensor is used for detecting the posture of the metering barrel, when the gravity sensor detects that the metering barrel is in an upright state, the laser liquid level meter detects a plurality of liquid level detection values within preset time, and the controller calculates the average value of the plurality of detection values within the preset time to be used as height data of collected liquid levels.

The invention further adopts the technical scheme that the constant-temperature auxiliary heating device is also included, the constant-temperature auxiliary heating device is electrically connected with the controller, and the constant-temperature auxiliary heating device is positioned on the bottom end connector of the metering barrel.

The invention further adopts the technical scheme that the measuring tank further comprises a one-way valve for preventing intestinal juice from flowing backwards, and the one-way valve is fixed on a bottom end connector of the measuring tank or a liquid outlet pipeline.

The invention further adopts the technical scheme that the measuring device further comprises a fixing frame, the measuring barrel is fixed in a left frame body of the fixing frame, and a controller, a motor driver and a stepping motor are sequentially fixed on the right side of the fixing frame from top to bottom.

The invention further adopts the technical scheme that one end of the liquid inlet pipeline is provided with a near-end connector used for being connected with the near end of the intestine, the other end of the liquid inlet pipeline is detachably connected with the upper part of the metering barrel and is mutually communicated with the metering barrel, one end of the liquid outlet pipeline is detachably connected with the lower part of the metering barrel and is mutually communicated with the metering barrel, the other end of the liquid outlet pipeline is provided with a far-end connector used for being connected with the far end of the intestine, and the near-end connector and/or the far-end connector are both configured into drainage plum blossom heads.

The technical scheme is that the drainage plum blossom head comprises a bud-shaped bulge and one or more drainage holes, and the one or more drainage holes are located on the outer surface of the bud-shaped bulge.

The invention further adopts the technical scheme that the near-end connector and/or the far-end connector are/is provided with a leakage-proof sealing ring, and the leakage-proof sealing ring sequentially consists of a hydrogel dressing net layer, a polyurethane foam pad and a polyurethane translucent film from inside to outside.

According to a further technical scheme, the metering barrel comprises a barrel body and a barrel cover, the barrel cover is located above the barrel body, the barrel body is in spiral fit with the barrel cover, the metering barrel is detachably connected with a top end connector, and the metering barrel is detachably connected with a bottom end connector.

The invention further adopts the technical scheme that the leakproof seal ring is sequentially composed of a water gel dressing net layer, a polyurethane foam pad and a polyurethane translucent film from inside to outside.

The invention has the beneficial effects that:

according to the portable intestinal juice feedback device, the peristaltic pump acting on the liquid outlet pipeline of the metering barrel is arranged, so that peristaltic slow transmission of liquid can be realized in a small space, a large number of control valves and buffer devices which are frequently adopted in the prior art are not needed, and the peristaltic pump can well simulate the peristaltic motion of intestines in a working mode, so that the intestinal juice is slowly transmitted. In addition, the proximal end connector and the distal end connector both adopt drainage quincuncial heads, the intestine proximal end port and the intestine distal end port can be sleeved on the drainage quincuncial heads, the bud-shaped bulge of the drainage quincuncial heads can effectively support the large intestine proximal end port and the intestine distal end port, and the large intestine proximal end port and the intestine distal end port can be prevented from sliding out of the joints under the action of restoring force after being supported, furthermore, special leakage-proof sealing rings made of three layers of leakage-proof materials are sleeved at the joints of the intestine proximal end port and the intestine distal end port, the proximal end connector and the distal end connector, and leakage at the joints is further avoided.

Drawings

FIG. 1 is a schematic structural diagram of a portable intestinal fluid reinfusion device provided in one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a portable intestinal fluid reinfusion device provided in the second embodiment of the present invention;

FIG. 3 is a schematic diagram of the construction of a peristaltic pump provided in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a proximal connector provided in an embodiment of the present invention;

FIG. 5 is a top view of a leak-proof seal provided in an embodiment of the present invention;

FIG. 6 is a schematic electrical diagram of a portable intestinal fluid reinfusion device in accordance with an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a portable intestinal fluid reinfusion device provided in the third embodiment of the invention.

In the figure: 1. a peristaltic pump; 2. an intestinal fluid delivery conduit; 11. a pump head; 111. a tube mounting bracket; 112. a rotor; 113. a stick; 114. a guide groove; 21. a liquid inlet pipeline; 22. a liquid outlet pipeline; 3. a metering bucket; 31. a filter screen; 32. a graduated scale; 35. a top end fitting; 36. a bottom end fitting; 41. a laser liquid level meter; 411. a first laser liquid level meter; 412. a second laser level meter; 42. a constant temperature auxiliary heater; 43. a controller; 431. an outer housing; 44. a touch screen; 5. a one-way valve; 45. a heating plate; 46. a temperature sensor; 47. a gravity sensor; 48. a player; 6. a one-way exhaust valve; 7. a fixing frame; 12. a motor driver; 13. a stepping motor; 431. an outer housing; 81. a proximal end connector; 82. a distal connector; 83. the buds bulge; 84. a drainage hole; 9. a leak-proof sealing ring; 91. a hydrogel dressing mesh layer; 92. a polyurethane foam pad; 93. a polyurethane translucent film; 94. a sector-shaped notch; 37. a barrel body; 38. and a barrel cover.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

As shown in fig. 1, the portable intestinal fluid returning device provided in this embodiment includes a peristaltic pump 1 and an intestinal fluid conveying pipe 2, two ends of the intestinal fluid conveying pipe 2 are respectively connected to the proximal end and the distal end of the intestine, and the intestinal fluid conveying pipe 2 passes through a pump head 11 of the peristaltic pump 1. The intestinal fluid conveying pipeline 2 can directly or indirectly communicate the near end and the far end of the intestine, and the peristaltic action of the roller 113 on the rotor 112 of the peristaltic pump 1 enables the pipe wall of the intestinal fluid conveying pipeline 2 to be extruded, so that the flow of the intestinal fluid in the intestinal fluid conveying pipeline 2 is driven. Preferably, the intestinal fluid conveying pipe 2 is made of silicone tube, and the peristaltic pump 1 is configured as a finger-shaped peristaltic pump 1. There are three main forms of intestinal motility, including tonic contraction, segmental movement and peristalsis, in which the tonic contraction is usually stressed by external or internal stimuli. Segmental motion often occurs after eating, fasting is almost nonexistent, and the frequency of segmental motion of the intestine is usually higher in the head and main working areas and lower in the tail. For example: the frequency of the head and main working area of duodenum is about 10-12 times/min, while the frequency of the tail end is 6-9 times/min. In addition, peristalsis occurs at various locations in the intestine, with the primary function of transporting the intestinal site, typically at a rate of about 0.5-2.0cm/s, with the peristalsis rate of the proximal small intestine being greater than that of the distal end. The interaction between the peristaltic pump 1 and the intestinal fluid conveying pipeline 2 in the embodiment is mainly to simulate the peristaltic process of the small intestine, so that the intestinal fluid is slowly pushed to move according to the working speed of the intestines at different positions. Most of the prior art realizes the control of intestinal juice through gas pump or valve, and the subassembly that not only relates to is many and control complicacy, hardly realizes carrying of intestinal juice feedback device, and can not simulate the easy jam of intestinal peristalsis. Further, in order to enhance the intestinal peristalsis effect, a plurality of rotors 112 can be arranged on the peristaltic pump 1 or a plurality of peristaltic pumps 1 can be adopted to further enhance the intestinal peristalsis effect. Preferably, the peristaltic pump 1 is configured as a peristaltic pump with adjustable flow rate and flow rate display, and the flow rate display is displayed in real time through the touch screen 44, so that the medical staff can observe the flow rate of the intestinal fluid conveniently.

As shown in fig. 3, the pump head 11 includes a tube mounting bracket 111 and a rotor 112 fixed with a plurality of rollers 113, a guide groove 114 for mounting the intestinal fluid transportation tube 2 is provided between the tube mounting bracket 111 and the rotor 112, and specifically, the guide groove 114 is located on an inner wall of an end portion of the tube mounting bracket 111. Preferably, 3 rollers 113 are fixed to the rotor 112, and the shape of the gap between the inner wall of the end of the tube mounting bracket 111 and one or two rollers 113 is changed continuously during the rotation of the rotor 112, for example: the shape of the gap between the inner wall of the guide groove 114 and one or both of the rollers 113 changes continuously during the rotation of the rotor 112. When the rod 113 on the rotor 112 rolls the intestinal fluid conveying pipeline 2, the intestinal fluid in the intestinal fluid conveying pipeline 2 is thrown out, the rolled intestinal fluid conveying pipeline 2 recovers the shape thereof, vacuum negative pressure is generated, and the intestinal fluid is continuously sucked, so that the intestinal fluid slowly moves, and the purpose of simulating the digestion process of the small intestine is achieved.

Example two

As shown in fig. 2 and fig. 3, the portable intestinal juice feedback device that provides in this embodiment, including being used for holding metering tank 3 of intestinal juice, intestinal juice pipeline 2 includes inlet channel 21 and drain pipe 22, inlet channel 21 is used for metering tank 3 to be connected with the intestines near-end, top intercommunication with metering tank 3, it is concrete, adopt screw-thread fit's mode and metering tank 3's top end connector 35 intercommunication, the mode that adopts threaded connection is for the inlet channel 21 of the different models of adaptation, the inlet channel 21 of also different models only needs the screw thread mouth unanimously, just can with the top intercommunication of metering tank 3. The liquid outlet pipeline 22 is used for connecting the metering barrel 3 with the far end of the intestine and is communicated with the bottom end of the metering barrel 3, specifically, the liquid outlet pipeline 22 is communicated with a bottom end joint 36 of the metering barrel 3 in a thread matching mode and can also be matched with liquid outlet pipelines 22 of different models. In addition, the selection of the liquid inlet pipeline 21 and the liquid outlet pipeline 22 with different models is related to the size of the patient. The peristaltic pump 1 is located one side of the metering barrel 3, the liquid outlet pipeline 22 penetrates through the pump head 11 of the peristaltic pump 1, the middle of the metering barrel 3 is provided with a filter screen 31, and the filter screen 31 can filter impurities in intestinal juice. The intestinal juice flowing from the liquid inlet pipe 21 enters the metering barrel 3, is filtered in the metering barrel 3 and then flows out from the liquid outlet pipe 22 under the driving action of the peristaltic pump 1. Be provided with scale 32 on the measuring tank 3, the intestines liquid capacity in the measuring tank 3 can be confirmed according to intestines liquid and the 32 position relation of scale in the measuring tank 3 to patient or doctor observe the intestines liquid capacity in the measuring tank 3, thereby through the reasonable rotational speed of adjusting peristaltic pump 1 of manual mode.

EXAMPLE III

As shown in fig. 7, the portable intestinal juice feedback device provided in this embodiment includes a metering bucket 3 for accommodating intestinal juice, the intestinal juice conveying pipeline 2 includes a liquid inlet pipeline 21 and a liquid outlet pipeline 22, and the liquid inlet pipeline 21 is used for connecting the metering bucket 3 with the intestinal proximal end and is communicated with the top end of the metering bucket 3.

The third embodiment is different from the second embodiment in that:

in order to facilitate the cleaning of the measuring bucket 3, the measuring bucket 3 is arranged to be a detachable measuring bucket 3. At this time, if the internal devices such as the laser liquid level meter 41, the heating plate 45 and the temperature sensor 46 are installed inside the measuring barrel 3, the devices are also detachably fixed inside the measuring barrel 3, so that the corresponding devices can be conveniently cleaned. Preferably, inlet pipe 21 adopts screw-thread fit's mode and metering tank 3's top end connector 35 intercommunication, and the mode that adopts threaded connection is for the inlet pipe 21 of the different models of adaptation, and the inlet pipe 21 of also different models only needs the screw thread mouth model unanimity, just can communicate with metering tank 3's top. The liquid outlet pipeline 22 is used for connecting the metering barrel 3 with the far end of the intestine and is communicated with the outlet at the bottom end of the metering barrel 3. Preferably, the liquid outlet pipe 22 is communicated with one end of the bottom end connector 36 of the metering barrel 3 in a threaded fit manner, the bottom end connector 36 can be adapted to liquid outlet pipes 22 of different types under the condition that the types of threaded openings are consistent, and the bottom end outlet of the metering barrel 3 is communicated with the other end of the bottom end connector 36 in a threaded fit manner. In addition, the different types of inlet pipe 21 and outlet pipe 22 are mainly related to the body size of the patient. Further preferably, the measuring bucket 3 comprises a bucket body 37 and a bucket cover 38, the bucket cover 38 is located above the bucket body 37, the bucket body 37 is in spiral fit with the bucket cover 38, and the bucket cover 38 can be screwed into the upper side of the bucket body 37, so that the measuring bucket 3 can be detached and cleaned.

As shown in fig. 2, 6 and 7, the portable intestinal fluid returning device includes a controller 43, and preferably, at least one of a laser level meter 41, a gravity sensor 47 or a gyroscope is disposed in the measuring tank 3, the laser level meter 41, the gravity sensor 47 or the gyroscope is electrically connected to the controller 43, and the gravity sensor 47 can be fixed on the fixing frame 7 or at a middle position of the portable intestinal fluid returning device. Since the posture of the patient is uncertain, that is, the posture of the measuring tank 3 is also changed frequently, most of the liquid level meters on the market need to keep the container posture consistent and even the liquid level changes stably to measure the liquid level accurately. To solve this problem, a gravity sensor 47 or a gyroscope is provided in the measuring bucket 3 to detect the attitude of the measuring bucket 3, for example: the measuring bucket 3 is detected to be in a vertical state or lie down to change. The above problems can now be solved by two methods, the first method is to measure the deflection angle of the measuring barrel 3 by the gyroscope accurately, and correct the liquid level detection value of the laser liquid level meter 41 by the deflection angle, and the method has a certain error through experiments, mainly caused by frequent change of the body state of the patient. However, since the portable intestinal fluid reinfusion device is substantially kept in an upright state in actual use, since the patient is usually required to lie down, the portable intestinal fluid reinfusion device is mounted on a fixing seat on one side of the patient for keeping the portable intestinal fluid reinfusion device upright with the help of medical staff or the patient himself/herself, which is not only for measuring the liquid level, but also is more important to prevent the connection pipe of the portable intestinal fluid reinfusion device from falling off or the wound of the patient from being pressed by the equipment due to the fact that the patient turns over when lying down. The second method is that when the gravity sensor 47 or the gyroscope detects that the patient is in the vertical state within the preset time period, the liquid level detection value of the laser liquid level meter 41 is considered to be valid, usually, when the change of a plurality of liquid level detection values of the laser liquid level meter 41 is slight or not, and the gravity sensor 47 or the gyroscope detects that the patient is in the vertical state, the detection value of the laser liquid level meter 41 is considered to be valid, and the controller 43 calculates the average value of the plurality of detection values within the preset time as the height data of the collected liquid level of the metering barrel 3, the liquid level detection value collected by the method is basically high in accuracy, certainly, when the intestinal fluid in the metering barrel 3 has a certain amount and the lying angle is not large, the detection value can be properly corrected, and the high accuracy of the liquid level detection value can be maintained, the method is not only that the portable intestinal fluid feedback device can maintain the vertical state at all the time, however, it is not recommended to leave the measuring bucket 3 in the lying state for a long time only because a large detection error is likely to occur when the user lies extremely flat or nearly flat. Further, a first laser liquid level meter 411 and a second laser liquid level meter 412 are generally disposed in the measuring tank 3, the first laser liquid level meter 411 and the second laser liquid level meter 412 are both electrically connected to the controller 43, the first laser liquid level meter 411 is located on the top inner wall of the measuring tank 3, the second laser liquid level meter 412 is located on the side wall of the measuring tank 3 and is close to the filter screen 31, and preferably, the second laser liquid level meter 412 is located above or below the filter screen 31. The first laser liquid level meter 411 is mainly used for measuring height data of liquid level, the second laser liquid level meter 412 is used for early warning when the liquid level is too low, the second laser liquid level meter 412 proves that the liquid level is too low after detecting that the liquid disappears, the controller 43 gives an alarm through the player 48 and/or the touch screen 44 at the moment, and the player 48 is electrically connected with the controller 43 and is controlled by the controller 43. If gravity sensor 47 or gyroscope detect that measuring tank 3 is in the state of lying, also should send the warning, should remind patient or medical personnel to adjust measuring tank 3 as soon as possible to the state of erectting or install on the fixing base that patient one side erects at this moment.

In summary, the laser level meter 41 can determine the near-end flow rate of the near-end of the intestine flowing into the measuring tank 3, that is, the intestinal juice flow rate at the inlet pipe 21 in real time, although the laser level meter 41 can only collect height data of the liquid level, the peristaltic pump 1 is configured as a peristaltic pump with flow display, that is, the peristaltic pump 1 itself has a flow calculation function, the peristaltic pump 1 usually operates at a fixed flow rate within a certain time, that is, the far-end flow rate of the outlet pipe 22 flowing out of the measuring tank 3 is constant, so the near-end flow rate of the near-end of the intestine flowing into the intestinal juice can be calculated through the variation of the volume of the intestinal juice in the measuring tank 3. Calculating the real-time proximal flow rate facilitates monitoring the eating cycle of the patient. For example: because the patient usually eats at periodic fixed time, after eating, will certainly lead to near-end flow too much, just so can only be fast through laser level gauge 41 detect this kind of change to auxiliary controller 43 decision-making control peristaltic pump 1's increase rotational speed, increase distal end flow, thereby effectively avoid the intestinal juice in the measuring bucket 3 to pile up, also press close to human habit more simultaneously. Because the posture of the patient is difficult to predict, in order to avoid the misjudgment of the laser liquid level meter 41, when the detection value of the laser liquid level meter 41 exceeds the pre-warning value, the patient or the medical staff should be reminded in an alarm manner to manually adjust the flow of the peristaltic pump 1 through the touch screen 44 or the buttons or set to a different mode and adjust to the food intake mode, for example: manually adjusted to the feeding mode and then the flow of the peristaltic pump 1 is appropriately corrected. And do not adopt and directly control peristaltic pump 1 rotation after feeding back laser level gauge 41, though this kind of mode can feed back in real time and real time control in principle, but probably because the height data of the liquid level that laser level gauge 41 gathered can the error appear, and cause danger for patient's life health, patient or medical personnel should combine scale 32 to observe the flow size of back manual adjustment peristaltic pump 1 again this moment, reach the purpose of double confirmation and dual fail-safe. Further preferably, the controller 43 has pre-stored therein peristaltic frequencies and intestinal fluid rates of different types and different positions of intestines, and the controller 43 can calculate the required peristaltic frequency and the required intestinal fluid rate according to the actual site of the fistulization operation, for example: the required peristaltic frequency and the required intestinal fluid rate can be measured and calculated by the controller 43 through the distance between the actual fistulization operation position and the near end and the far end of the intestine, or can be input to the controller 43 through the touch screen 44 by a patient or a doctor, the peristaltic pump 1 adjusts the pulsation frequency and the far end flow rate of the peristaltic pump 1 according to the required peristaltic frequency and the required intestinal fluid rate, the controller 43 prompts the patient or a medical worker to correct the peristaltic frequency and the intestinal fluid rate manually through the real-time detection value of the laser level meter 41, so that the peristaltic frequency and the intestinal fluid rate of the fistulization operation position are close to or equal to the required peristaltic frequency and the required intestinal fluid rate, and the controller 43 controls the rotating speed of the stepping motor 13 periodically or intermittently to achieve the target of periodically or intermittently outputting different intestinal fluid rates, thereby simulating the intestinal peristaltic frequency. The peristaltic frequency, the intestinal fluid rate, the near-end flow and the far-end flow can be displayed in real time through the touch screen 44 electrically connected with the controller 43, so that a patient or a doctor can conveniently obtain the working state of the portable intestinal fluid reinfusion device, and the diagnosis and treatment scheme is optimized.

As shown in fig. 2, 6 and 7, in order to ensure that the intestinal juice in the outlet tube 22 can flow more smoothly, and the peristaltic pump 1 is not easily blocked, further, the portable intestinal juice feedback device further comprises a constant temperature auxiliary heater 42 and a controller 43, the constant temperature auxiliary heater 42 is electrically connected with the controller 43 and is positioned on the bottom end connector 36 of the metering tank 3, and the constant temperature auxiliary heater 42 maintains the intestinal juice temperature inside the bottom end connector 36 at the human body temperature or a temperature slightly higher than the human body temperature under the action of the controller 43. Because the intestinal juice has higher viscosity, the liquid with overlarge viscosity is not beneficial to the smooth pumping of the peristaltic pump 1, and the viscosity of the liquid is effectively reduced by heating, so that the intestinal juice in the liquid outlet pipeline 22 connected with the bottom end joint 36 can flow more smoothly. In addition, the intestinal fluid can be made more fluid by increasing the diameter of the outlet pipe 22 appropriately.

In order to avoid the phenomenon of regurgitation appearing among the intestinal juice flow process, furtherly, portable intestinal juice feedback device is still including being used for preventing the palirrhea check valve 5 of intestinal juice, and check valve 5 is fixed on metering tank 3's bottom end joint 36 or goes out on liquid pipeline 22, and check valve 5 guarantees the unidirectionality of intestinal juice flow direction, avoids its palirrhea metering tank 3 that returns, and from this it is visible, check valve 5 can effectively guarantee the uniformity of intestinal juice flow direction.

In order to prevent the intestinal juice temperature inside the metering barrel 3 from being too low, which causes discomfort to the patient. Further, the portable intestinal juice feedback device further comprises a heating plate 45 and a temperature sensor 46, wherein the heating plate 45 is fixed on the back surface of the measuring barrel 3, the position of the heating plate is just opposite to the graduated scale 32, the graduated scale 32 is usually positioned on the front surface of the measuring barrel 3, and the temperature sensor 46 is fixed on the inner wall of the measuring barrel 3. Heating plate 45 and temperature sensor 46 all are connected with controller 43 electricity, and temperature sensor 46 gathers the intestines liquid temperature of measuring tank 3 in real time to convey to controller 43, when controller 43 found that the intestines liquid temperature of gathering measuring tank 3 in real time is less than preset temperature, start heating plate 45, and show temperature early warning signal through touch-sensitive screen 44.

In order to avoid the excess gas in the measuring barrel 3 from being excessively high and properly discharging the intestinal juice, furthermore, the portable intestinal juice feedback device further comprises a one-way exhaust valve 6, the one-way exhaust valve 6 is arranged at the upper part of the measuring barrel 3, the excessively high air pressure in the measuring barrel 3 can prevent the intestinal juice from flowing into the measuring barrel 3 from the near end of the intestine, but the intestinal juice can bring air into the measuring barrel, so the air pressure in a certain measuring barrel 3 exceeds a threshold value, and the gas is timely discharged from the measuring barrel 3.

In order to make the structure of the portable intestinal juice feedback device more compact and convenient to carry, further, the portable intestinal juice feedback device further comprises a fixing frame 7, the metering bucket 3 is fixed in the left frame of the fixing frame 7, a controller 43, a motor driver 12 and a stepping motor 13 are sequentially fixed on the right side of the fixing frame 7 from top to bottom, the controller 43 is electrically connected with the stepping motor 13 through the motor driver 12, and the touch screen 44 is arranged on an outer shell 431 of the controller 43. Be vertical distribution with controller 43, motor driver 12 and step motor 13, do benefit to the thickness that reduces portable intestinal juice back transfusion device for it is more convenient to carry.

As shown in fig. 4 and 5, the inlet pipe 21 and the outlet pipe 22 are fixedly connected to the proximal end and the distal end of the intestine, respectively, for convenience. Furthermore, one end of the liquid inlet pipe 21 is provided with a near-end connector 81 for connecting with the near end of the intestine, the other end of the liquid inlet pipe is fixedly connected with the upper part of the measuring bucket 3 and is communicated with the upper part of the measuring bucket 3, one end of the liquid outlet pipe 22 is fixedly connected with the lower part of the measuring bucket 3 and is communicated with the lower part of the measuring bucket 3, the other end of the liquid outlet pipe is provided with a far-end connector 82 for connecting with the far end of the intestine, and the near-end connector 81 and the far-end connector 82 are provided with a connector structure of. Preferably, the proximal connector 81 and/or the distal connector 82 are each configured as a drainage plum blossom head, a joint structure commonly used for connection to the proximal and distal intestines. As shown in fig. 4, it is further preferable that the drainage plum blossom head includes a bud-shaped bulge 83 and one or more drainage holes 84, the one or more drainage holes 84 are located on the outer surface of the bud-shaped bulge 83, when there are only 1 drainage hole 84 for draining the plum blossom head, the modified plum blossom head specially designed in this embodiment is provided, and a larger drainage hole 84 is provided in the middle of the modified plum blossom head, so that the drainage structure with a single hole is more favorable for the flow of intestinal juice. The bud-shaped bulge 83 is a joint with a shape similar to that of an unopened bud, and is similar to a sphere with a certain taper on one side, which can be seen in the shape of a drainage plum blossom head in the drawing. When the proximal intestine port and the distal intestine port can be sleeved on the drainage quincunx head, the bud-shaped bulge 83 of the drainage quincunx head can effectively support the proximal large intestine port and the distal intestine port, so that the proximal large intestine port and the distal intestine port can be prevented from sliding out of the joint under the action of the restoring force of the expanded intestine, and the leakage from the proximal intestine port and the distal intestine port can be avoided.

In order to further avoid leakage from the proximal connector 81 and the distal connector 82, further, the proximal connector 81 and/or the distal connector 82 are/is provided with a leakage-proof sealing ring 9, the leakage-proof sealing ring 9 is sleeved at the joint of the proximal port and the distal port of the intestine and the corresponding proximal connector 81 and the distal connector 82, and the joint is wrapped, so that intestinal juice is further prevented from leaking from the proximal connector 81 and the distal connector 82. Preferably, the leakproof seal ring 9 is composed of a hydrogel dressing mesh layer 91, a polyurethane foam pad 92 and a polyurethane translucent film 93 in sequence from inside to outside. The hydrogel dressing net layer 91 mainly comprises sulfadiazine silver lipid hydrogel dressing, and wound infection can be effectively reduced; the polyurethane foam pad 92 has a certain thickness, and adopts a non-adhesive edge foam bevel edge design, so that the buffering force is enhanced and the indentation is reduced; the outer surface of the polyurethane translucent film 93 is provided with a bacterium-blocking backing pattern, and the effects of bacterium blocking, ventilation, water resistance and the like are achieved. The leakage-proof sealing ring 9 is provided with a plurality of leakage-proof barrier material layers, so that intestinal juice is difficult to leak out from the position where the leakage-proof sealing ring 9 is located, and the leakage-proof reliability of the near-end connector 81 and the far-end connector 82 is further enhanced. As shown in fig. 5, the leakproof seal ring 9 is preferably in an unclosed circular shape, that is, a fan-shaped notch 94 is formed in the leakproof seal ring 9, and the fan-shaped notch 94 facilitates the installation and replacement of the leakproof seal ring 9.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. A portable intestinal juice back-transfusion device is characterized in that:

comprises a peristaltic pump and an intestinal fluid conveying pipeline, wherein two ends of the intestinal fluid conveying pipeline are respectively connected with the near end and the far end of the intestine;

the intestinal fluid conveying pipeline penetrates through a pump head of the peristaltic pump.

2. The portable intestinal fluid reinfusion device according to claim 1, wherein:

comprises a measuring barrel for containing intestinal juice;

the intestinal juice conveying pipeline comprises a liquid inlet pipeline and a liquid outlet pipeline;

the liquid inlet pipeline is used for connecting the metering barrel with the proximal end of the sausage and is communicated with the top end of the metering barrel;

the liquid outlet pipeline is used for connecting the metering barrel with the intestinal far end and is communicated with the bottom end of the metering barrel;

the peristaltic pump is positioned on one side of the metering barrel;

the liquid outlet pipeline penetrates through a pump head of the peristaltic pump.

3. The portable intestinal fluid reinfusion device according to claim 1 or 2, wherein:

the pump head comprises a pipe mounting frame and a rotor fixed with a plurality of rollers;

a fixing groove for installing the intestinal juice conveying pipeline is arranged between the tube mounting frame and the rotor.

4. The portable intestinal fluid reinfusion device according to claim 2, wherein:

the device also comprises a controller;

at least one laser liquid level meter and a gravity sensor are arranged in the metering barrel;

the laser liquid level meter and the gravity sensor are both electrically connected with the controller;

5. The portable intestinal fluid reinfusion device according to claim 4, wherein

The device also comprises a constant temperature auxiliary heater;

the constant-temperature auxiliary heater is electrically connected with the controller;

the constant-temperature auxiliary heater is positioned on the bottom end connector of the metering barrel.

6. The portable intestinal fluid reinfusion device according to claim 4, wherein:

the device also comprises a fixed frame;

the metering barrel is fixed in the left frame body of the fixed frame;

and the controller, the motor driver and the stepping motor are sequentially fixed on the right side of the fixed frame from top to bottom.

7. The portable intestinal fluid reinfusion device according to claim 2, wherein:

one end of the liquid inlet pipeline is provided with a near-end connector used for being connected with the near end of the intestine, and the other end of the liquid inlet pipeline is detachably connected with the upper part of the metering barrel and is communicated with the metering barrel;

one end of the liquid outlet pipeline is detachably connected with the lower part of the metering barrel and is communicated with the metering barrel, and the other end of the liquid outlet pipeline is provided with a far-end connector used for being connected with the far end of the intestine;

the near-end connector and/or the far-end connector are all configured into drainage plum blossom heads.

8. The portable intestinal fluid reinfusion device according to claim 7, wherein:

the drainage plum blossom head comprises a bud-shaped bulge and one or more drainage holes;

one or more drainage holes are formed in the outer surface of the bud-shaped bulge.

9. The portable intestinal fluid reinfusion device according to claim 7, wherein:

the near-end connector and/or the distal end connector is provided with the leak protection sealing washer, the leak protection sealing washer comprises water gel dressing stratum reticulare, polyurethane foam pad and the translucent membrane of polyurethane from inside to outside in proper order.

10. The portable intestinal fluid reinfusion device according to claim 2, wherein:

the metering barrel comprises a barrel body and a barrel cover;

the barrel cover is positioned above the barrel body, and the barrel body is spirally matched with the barrel cover;

the metering barrel is detachably connected with the top end joint;

the metering bucket is detachably connected with the bottom end connector.