Gastrointestinal digestive juice flow meter

Abstract

The present invention provides a gastrointestinal digestive fluid circulation instrument, which comprises a liquid storage bottle (1), a liquid inlet pipe (2), a liquid outlet pipe (4), a one-way liquid inlet valve (5), a one-way liquid outlet valve (6), a base (7), a pumping and pushing device (8), a bidirectional translation motor (10), and an automatic control device (11). The liquid inlet pipe 2 and the liquid outlet pipe 4 are respectively connected to the upper and lower ends of the liquid storage bottle 1, and the other end of the liquid outlet pipe 4 is connected to the pumping and pushing device (8). The pumping and pushing device 8 is composed of an outer sleeve (13) and a pumping and pushing rod (14). A pressure sensor (9) is arranged in the lumen of the pumping and pushing device (8). The automatic control device (11) controls the bidirectional translation motor (10) to control the pumping and pushing rod (14) to perform suction or propulsion movement according to a set control program and instruction, so as to timely and safely return the digestive fluid retained in the upper part of the obstruction site to the digestive tract in the lower part of the obstruction site, thereby realizing the circulation of gastrointestinal digestive fluid, thereby avoiding the loss of a large amount of components such as water, electrolytes and proteins.

Description

Technical Field

[0001] The invention belongs to the field of medical equipment, and relates to medical equipment for treating digestive system diseases, and in particular to equipment for the circulation of gastrointestinal digestive fluid. Background Art

[0002] Gastric cancer is a malignant tumor originating from the gastric mucosal epithelium. Gastric cancer can occur in any part of the stomach, more than half of which occur in the gastric antrum, and the greater curvature, lesser curvature, and anterior and posterior walls of the stomach can be affected. The vast majority of gastric cancers are adenocarcinomas, with no obvious symptoms in the early stage, or non-specific symptoms such as upper abdominal discomfort and belching, which are often similar to the symptoms of chronic gastric diseases such as gastritis and gastric ulcers and are easily overlooked. Radical surgery is the main treatment for gastric cancer. The principle is to remove part or all of the stomach including the cancer lesion and the possible infiltration of the gastric wall in one piece, remove the lymph nodes around the stomach in one piece according to the clinical staging standards, and reconstruct the digestive tract. Due to the functional obstruction of the jejunal output loop after partial gastrectomy, the clinical characteristics are periodic large amounts of bile vomiting, and the cause of the typical symptoms is unknown. Refractory gastric ulcer means that after strict medical treatment, the ulcer still cannot heal, the clinical symptoms persist, or it recurs repeatedly, so as to affect the patient's daily life and work. In this case, subtotal gastrectomy can be considered. When Billroth II gastrectomy (i.e., gastrojejunostomy) is performed for gastric tumors, gastric ulcers, and other diseases, patients may experience output loop obstruction after surgery. Output loop obstruction is caused by functional obstruction of the jejunal output loop after partial gastrectomy. The clinical characteristics are periodic large amounts of bile vomiting. The cause of the typical symptoms is unknown. It often appears 8-12 days after surgery, manifested as upper abdominal fullness or pain. After obstruction, the upper gastrointestinal fluid cannot be discharged smoothly into the small intestine, so doctors can only use a gastric tube to drain the retained digestive fluid. Within half an hour, the drained digestive fluid must be filtered externally (to avoid digestive fluid residue blocking the pipeline) and re-injected into the jejunal nutrition tube with a syringe. However, such a cumbersome operation is not only easy to cause the returned digestive fluid to be contaminated by the outside world, but also requires manpower to operate. The operation is cumbersome, with many steps and manpower. The returned digestive fluid is easily contaminated. The return of contaminated digestive fluid may cause diarrhea, abdominal pain, fever, etc., and may even lead to septic shock in severe cases. Therefore, people are eager to have a dedicated gastrointestinal circulation device to overcome the shortcomings of the above-mentioned prior art. Summary of the invention

[0003] The task of the present invention is to provide a gastrointestinal digestive juice flow meter, so that when the digestive tract is obstructed due to various reasons and digestive juices such as gastric juice, pancreatic juice and bile are retained, the digestive juice retained in the upper part of the obstruction site can be timely and safely returned to the digestive tract below the obstruction site for absorption in vitro, avoiding the loss of large amounts of components such as water, electrolytes and proteins, thereby overcoming the shortcomings of the prior art such as cumbersome operation, numerous steps, labor consumption, and the digestive juice returned being easily contaminated, which can easily lead to diarrhea, abdominal pain, fever, infectious shock and the like.

[0004] The technical solution for realizing the present invention is:

[0005] The gastrointestinal digestive fluid flow meter provided by the present invention is composed of a liquid storage bottle 1, a one-way liquid inlet valve 5, a one-way liquid outlet valve 6, a pumping and pushing device 8 for sucking and pushing gastrointestinal digestive fluid, and a two-way translation motor 10. A liquid inlet pipe 2 is arranged on the upper part of the liquid storage bottle 1, and a liquid outlet pipe 4 is arranged on the bottom of the liquid storage bottle 1. A filter membrane 3 for filtering upper digestive tract liquid residue is arranged in the liquid storage bottle 1; the pumping and pushing device 8 is composed of a circular tubular outer sleeve 13 and a piston located in the tube cavity of the outer sleeve 13 and sliding against the tube wall of the outer sleeve 13, and a pumping and pushing rod 14 connected to the tail of the piston. The front end tube wall of the outer sleeve 13 is provided with a liquid inlet and outlet channel, and one end of the one-way liquid inlet valve 5 is connected to the outer sleeve 13 through a connecting pipe. The channel is connected to the open end of the bottle outside the liquid outlet pipe 4, and the other end of the one-way liquid inlet valve 5 is connected to the inlet and outlet liquid channel on the front end tube wall of the outer sleeve 13 of the pumping and pushing device 8 through a pipeline. The connecting pipeline between the one-way liquid inlet valve 5 and the pumping and pushing device 8 is a three-way pipe structure, and the middle channel of the three-way pipe structure is connected to the one-way liquid outlet valve 6; the inlet and outlet liquid channel located on the front end tube wall of the outer sleeve 13 can be composed of a circular tubular structure protruding outward; the front end surface of the piston located in the tube cavity of the outer sleeve 13 of the pumping and pushing device 8 and sliding close to the tube wall of the outer sleeve 13 (that is, the side facing the inlet and outlet liquid channel) can be provided with a pressure sensor 9 for monitoring the pressure in the tube cavity of the sensor pumping and pushing device 8.

[0006] In one embodiment of the present invention, the pumping device 8 is fixed to the base 7 by a movable buckle, and a bidirectional translation motor 10 is also provided on the base 7 to control the pumping rod 14 of the pumping device 8 to reciprocate. The bidirectional translation motor 10 is connected to the pumping rod 14 of the pumping device 8 by a control rod 15. The bidirectional translation motor 10 controls the pumping rod 14 of the pumping device 8 to reciprocate to realize the circulation of gastrointestinal digestive fluid. On this basis, an automatic control device 11 can also be provided, which is connected to the pressure sensor 9 and the bidirectional translation motor 10 through a conductive wire 12. The automatic control device 11 can be composed of a transmitter and a controller, and the transmitter is connected to the pressure sensor 9 and the controller.

[0007] When the gastrointestinal digestive fluid flow meter provided by the present invention is used for digestive fluid circulation, the liquid inlet tube 2 is connected to the stomach tube, the liquid outlet end of the one-way liquid outlet valve 6 is connected to the jejunal nutrition tube, and the pumping rod 14 can be manually or mechanically controlled.

[0008] During manual control, when the push rod 14 is stretched and moved backward, the one-way liquid inlet valve 5 is opened and the one-way liquid outlet valve 6 is closed, and the gastrointestinal digestive fluid enters the liquid storage bottle 1 through the liquid inlet pipe 2, and the residue in the digestive fluid is filtered out by the filter membrane 3 arranged in the liquid storage bottle 1, and the filtered digestive fluid enters the tube cavity of the pusher 8 through the liquid outlet pipe 4 and the pipe connecting the liquid outlet pipe 4 and the pusher 8; when the push rod 14 of the pusher 8 is pushed into the tube cavity of the pusher 8, the one-way liquid inlet valve 5 is closed, and the one-way liquid outlet valve 6 is opened, and the digestive fluid in the tube cavity of the pusher 8 enters the jejunal nutrient tube through the connecting pipe between the pusher 8 and the one-way liquid outlet valve 6 and the one-way liquid outlet valve 6, thereby realizing the circulation of the gastrointestinal digestive fluid.

[0009] During mechanical electric control, when the pushing rod 14 of the pusher 8 is pulled and moved under the control of the bidirectional translation motor 10, the one-way liquid inlet valve 5 is opened and the one-way liquid outlet valve 6 is closed, and the digestive fluid enters the liquid storage bottle 1 through the liquid inlet pipe 2, and the residue in the digestive fluid is filtered out through the filter membrane 3 arranged in the liquid storage bottle 1. The filtered digestive fluid enters the lumen of the pusher 8 through the liquid outlet pipe 4 and the pipe connecting the liquid outlet pipe 4 and the pusher 8. When the pushing rod 14 of the pusher 8 is pushed and moved into the lumen of the pusher 8 under the control of the bidirectional translation motor 10, the one-way liquid inlet valve 5 is closed, the one-way liquid outlet valve 6 is opened, and the digestive fluid in the lumen of the pusher 8 enters the jejunal nutrient tube through the connecting pipe between the pusher 8 and the one-way liquid outlet valve 6 and the one-way liquid outlet valve 6, thereby realizing the circulation of gastrointestinal digestive fluid. The automatic control device 11 receives the signal from the pressure sensor 9 located in the lumen of the pumping and pushing device 8, and controls the bidirectional translation motor 10 according to the set control program and instructions, thereby controlling the pumping and pushing rod 14 to perform suction or propulsion movement, so as to timely and safely return the digestive fluid retained in the upper part of the obstruction site to the digestive tract below the obstruction site. When the digestive tract is obstructed due to various reasons, resulting in the retention of digestive fluids such as gastric juice, pancreatic juice, and bile, the gastrointestinal digestive fluid flow meter provided by the present invention can timely extract the digestive fluid retained in the upper part of the obstruction site in vitro and return it to the digestive tract below the obstruction site for absorption, thereby avoiding the loss of a large amount of components such as water, electrolytes, and proteins.

[0010] The gastrointestinal digestive fluid flow meter provided by the present invention can effectively solve the problem of how to effectively transfer the upper digestive fluid to the small intestine after drainage in clinical practice. Although the traditional method is low-cost, the operation is complicated, and the filtering and re-infusion process must be repeated almost every half hour, which wastes labor costs, and manual operation can easily cause digestive fluid contamination. The gastrointestinal digestive fluid flow meter provided by the present invention realizes the closed circulation of digestive fluid drainage and re-infusion, eliminates the risk of contamination, and can realize automatic adjustment throughout the process. The operation is convenient and effective, and the drained digestive fluid can be transferred back to the digestive tract in a timely and safe manner.

[0011] The gastrointestinal digestive fluid flow meter provided by the present invention realizes the whole process of drainage and reinfusion, which is closed and pollution-free. At the same time, the setting of the filter membrane 3 can effectively filter the residue in the upper digestive fluid of the obstruction site that is drained. Since a pressure sensor is set in the lumen of the pumping and pushing device 8, the moving speed of the pumping and pushing rod 14 can be effectively adjusted according to the actual pressure change in the lumen during the transfer of digestive fluid. The moving speed of the pumping and pushing rod 14 of the pumping and pushing device 8 is directly related to the pressure sensor value in the lumen of the pumping and pushing device 8. When the negative pressure is large during the suction process, the suction process can be stopped, which can effectively avoid the occurrence of the situation that the stomach tube adsorbs the stomach wall due to excessive suction; when the pressure during the advancement process is large, the advancement is stopped, which can effectively avoid the jejunum from being subjected to excessive pressure. The coherent setting of the one-way inlet valve 5 and the one-way outlet valve 6 realizes the alternating opening and closing of the drainage passage and the reinfusion passage, realizes the simultaneous drainage and reinfusion, and thus realizes the fully enclosed operation of drainage and reinfusion. Due to the mechanical electric control device, it is possible to realize the automatic circulation of digestive juice, which not only saves manpower and time costs, but also makes the treatment operation more rigorous and standardized. The gastrointestinal digestive juice circulation instrument provided by the present invention provides an effective solution to the digestive juice transfer problem currently faced in clinical work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : is a structural diagram of an embodiment of the present invention, and the names of the parts shown by the numbers in the figure are:

[0013] 1----Liquid storage bottle

[0014] 2----Liquid inlet pipe

[0015] 3----Filter membrane

[0016] 4----Liquid outlet pipe

[0017] 5----One-way liquid inlet valve

[0018] 6----One-way liquid outlet valve

[0019] 7----Base

[0020] 8----Pusher

[0021] 9-Baroreceptors

[0022] 10----Bidirectional translation motor

[0023] 11----Automatic control device

[0024] 12----Conduction wire DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Example 1

[0027] The gastrointestinal digestive fluid flow meter is composed of a liquid storage bottle 1, a one-way liquid inlet valve 5, a one-way liquid outlet valve 6, a pumping and pushing device 8 for sucking and pushing gastrointestinal digestive fluid, and a two-way translation motor 10. A liquid inlet pipe 2 is arranged on the upper part of the liquid storage bottle 1, and a liquid outlet pipe 4 is arranged at the bottom of the liquid storage bottle 1. A filter membrane 3 for filtering upper digestive tract liquid residue is arranged in the liquid storage bottle 1; the pumping and pushing device 8 is composed of a circular tubular outer sleeve 13 and a piston located in the tube cavity of the outer sleeve 13 and sliding against the tube wall of the outer sleeve 13, and a pumping and pushing rod 14 connected to the tail of the piston. The front end tube wall of the outer sleeve 13 is provided with an inlet and outlet channel. One end of the one-way liquid inlet valve 5 is connected to the outlet through a connecting pipe. The open end of the liquid tube 4 is connected to the outside of the bottle, and the other end of the one-way liquid inlet valve 5 is connected to the inlet and outlet liquid channel on the front end tube wall of the outer sleeve 13 of the pumping and pushing device 8 through a pipeline. The connecting pipeline between the one-way liquid inlet valve 5 and the pumping and pushing device 8 is a three-way pipe structure, and the middle channel of the three-way pipe structure is connected to the one-way liquid outlet valve 6; the inlet and outlet liquid channel located on the front end tube wall of the outer sleeve 13 can be composed of a circular tubular structure protruding outward; the front end surface of the piston located in the tube cavity of the outer sleeve 13 of the pumping and pushing device 8, which can slide close to the tube wall of the outer sleeve 13, can be provided with a pressure sensor 9 for monitoring the pressure in the tube cavity of the sensor pumping and pushing device 8.

[0028] When in use, the liquid inlet pipe 2 is connected with the stomach tube, and the liquid outlet end of the one-way liquid outlet valve 6 is connected with the jejunal nutrition tube. When the push rod 14 is stretched backward and moved, the one-way liquid inlet valve 5 is opened and the one-way liquid outlet valve 6 is closed. The gastrointestinal digestive fluid enters the liquid storage bottle 1 through the liquid inlet pipe 2, and the residue in the digestive fluid is filtered out by the filter membrane 3 arranged in the liquid storage bottle 1. The filtered digestive fluid enters the tube cavity of the pusher 8 through the liquid outlet pipe 4 and the pipeline connecting the liquid outlet pipe 4 and the pusher 8; when the push rod 14 of the pusher 8 is pushed into the tube cavity of the pusher 8, the one-way liquid inlet valve 5 is closed, the one-way liquid outlet valve 6 is opened, and the digestive fluid in the tube cavity of the pusher 8 enters the jejunal nutrition tube through the connecting pipeline between the pusher 8 and the one-way liquid outlet valve 6 and the one-way liquid outlet valve 6, thereby realizing the circulation of the gastrointestinal digestive fluid.

[0029] Example 2

[0030] A base 7 is provided on the basis of the gastrointestinal digestive fluid flow meter described in Example 1, and a pumping and pushing device 8 is fixed to the base 7 by a movable buckle. A bidirectional translation motor 10 is also provided on the base 7 for controlling a pumping and pushing rod 14 of the pumping and pushing device 8 to make reciprocating movements. The bidirectional translation motor 10 is connected to the pumping and pushing rod 14 of the pumping and pushing device 8 by a control rod 15. The bidirectional translation motor 10 controls the pumping and pushing rod 14 of the pumping and pushing device 8 to make reciprocating movements to realize the circulation of gastrointestinal digestive fluid.

[0031] Example 3

[0032] An automatic control device 11 is provided on the basis of the gastrointestinal digestive fluid flow meter described in Example 2. The automatic control device 11 is connected to the pressure sensor 9 and the bidirectional translation motor 10 via a conductive wire 12. The automatic control device 11 is composed of a transmitter and a controller, and the transmitter is connected to the pressure sensor 9 and the controller.

[0033] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gastrointestinal digestive fluid flow meter, comprising a liquid storage bottle (1), a one-way liquid inlet valve (5), a one-way liquid outlet valve (6), a pumping and pushing device (8) for sucking and pushing gastrointestinal digestive fluid, and a bidirectional translation motor (10), wherein a liquid inlet pipe (2) is arranged at the upper part or top of the liquid storage bottle (1), a liquid outlet pipe (4) is arranged at the bottom of the liquid storage bottle (1), and a filter membrane (3) for filtering upper digestive tract liquid residue is arranged in the liquid storage bottle (1); the pumping and pushing device (8) comprises a circular tubular outer sleeve (13) and a outer sleeve (13) located in the lumen of the outer sleeve (13) and close to the outer sleeve (13) The one-way liquid inlet valve (5) is connected to the outer sleeve (13) of the bottle via a connecting pipe, and the other end of the one-way liquid inlet valve (5) is connected to the liquid inlet and outlet channels on the front end of the outer sleeve (13) of the pumping and pushing device (8) via a pipe. The connecting pipe between the one-way liquid inlet valve (5) and the pumping and pushing device (8) is a three-way pipe structure, and the middle channel of the three-way pipe structure is connected to the one-way liquid outlet valve (6). A pressure sensor (9) for monitoring the pressure in the lumen of the pumping and pushing device (8) is arranged on the front end surface of the piston which is located in the lumen of the outer sleeve (13) and can slide closely against the wall of the outer sleeve (13), that is, the side facing the inlet and outlet liquid passage; the pumping and pushing device (8) is fixed to the base (7) by a movable buckle, and a bidirectional translation motor (10) is arranged on the base (7) for controlling the pumping and pushing rod (14) of the pumping and pushing device (8) to move back and forth, and the bidirectional translation motor (10) is connected to the pumping and pushing rod (14) of the pumping and pushing device (8) through a control rod (15); an automatic control device (11) is also arranged, and the automatic control device (11) is connected to the pressure sensor (9) and the bidirectional translation motor 10 through a conductive wire (12); The liquid inlet pipe (2) is connected to the stomach tube, and the liquid outlet end of the one-way liquid outlet valve (6) is connected to the jejunal nutrition tube. When the push rod (14) is pulled backward, the one-way liquid inlet valve (5) is opened, and the one-way liquid outlet valve (6) is closed. The gastrointestinal digestive fluid enters the liquid storage bottle (1) through the liquid inlet pipe (2), passes through the filter membrane (3) arranged in the liquid storage bottle (1), and the residue in the digestive fluid is filtered out. The filtered digestive fluid passes through the liquid outlet pipe (4) and the connection liquid outlet pipe (4). The pipeline of the pumping and pushing device (8) enters the lumen of the pumping and pushing device (8); when the pumping and pushing rod (14) of the pumping and pushing device (8) moves into the lumen of the pumping and pushing device (8), the one-way liquid inlet valve (5) is closed, and the one-way liquid outlet valve (6) is opened, and the digestive fluid in the lumen of the pumping and pushing device (8) passes through the connecting pipeline between the pumping and pushing device (8) and the one-way liquid outlet valve (6) and the one-way liquid outlet valve (6) and enters the jejunal nutrition tube, so as to realize the circulation of gastrointestinal digestive fluid; The automatic control device (11) receives the signal from the pressure sensor (9) located in the lumen of the pumping device (8), and controls the bidirectional translation motor (10) according to the set control program and instructions, thereby controlling the pumping rod (14) to perform suction or propulsion movement, so as to timely and safely return the digestive fluid retained in the upper part of the obstruction to the lower part of the digestive tract of the obstruction; the movement speed of the pumping rod (14) is adjusted according to the actual pressure change in the lumen during the transfer of digestive fluid. The movement speed of the pumping rod (14) of the pumping device (8) is directly related to the value of the pressure sensor in the lumen of the pumping device (8). When the negative pressure is large during the suction process, the suction process is stopped to avoid the occurrence of excessive suction causing the gastric tube to adsorb to the stomach wall; when the pressure during the propulsion process is large, the propulsion is stopped to avoid excessive pressure in the jejunum.

2. The gastrointestinal digestive juice flow meter according to claim 1, characterized in that: The liquid inlet and outlet passages arranged on the front end tube wall of the outer sleeve (13) of the pumping and pushing device (8) are composed of a protruding circular tubular structure located on the front end tube wall of the outer sleeve (13).

3. The gastrointestinal digestive juice flow meter according to claim 1, characterized in that: The automatic control device (11) is composed of a transmitter and a controller, and the transmitter is connected to the pressure sensor (9) and the controller through conductive wires.

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