阅读说明：本技术 一种急诊内科临床用的洗胃装置 (Gastric lavage device for emergency internal medicine clinic ) 是由 张凯 于 2021-08-13 设计创作，主要内容包括：本发明提供一种急诊内科临床用的洗胃装置,涉及洗胃设施技术领域。该急诊内科临床用的洗胃装置,包括回吸管,所述回吸管的内部套设有冲洗管,所述回吸管和冲洗管的底端套接有用于控制冲洗和回吸路径的控制机构,所述回吸管和冲洗管的中部套接有用于控制冲洗液流速的稳压机构。该急诊内科临床用的洗胃装置,实现了在进行洗胃的过程中,胃部的毒物不会在抽吸时粘附在冲洗管的内壁,避免了毒物再次进入胃部的现象,提高了洗胃的效率,避免了大流量送液和高压的水流长时间反复地冲洗对患者造成的二次病变,提高了洗胃的安全性,实现了药剂流出速度根据胃压变化的自调节,避免了对患者造成二次伤害。(The invention provides a gastric lavage device for emergency internal medicine clinic, and relates to the technical field of gastric lavage facilities. The gastric lavage device for clinical use in emergency internal medicine comprises a resorption pipe, a flushing pipe is sleeved in the resorption pipe, a control mechanism for controlling flushing and resorption paths is sleeved at the bottom ends of the resorption pipe and the flushing pipe, and a pressure stabilizing mechanism for controlling the flow rate of flushing liquid is sleeved at the middle parts of the resorption pipe and the flushing pipe. This lavage device of emergency internal medicine clinical usefulness has realized carrying out the in-process of lavage, the poison of stomach can not be when the suction adhesion at the inner wall of flushing pipe, the phenomenon of poison reentry stomach has been avoided, the efficiency of lavage is improved, the secondary pathological change that the patient caused has been avoided washing repeatedly for a long time to large-traffic liquid and highly compressed rivers that send, the security of lavage has been improved, the self-adjustment of medicament outflow speed according to the change of gastric pressure has been realized, secondary injury has been avoided causing the patient.)

1. The utility model provides a lavage device of emergency internal medicine clinical usefulness, includes return straw (1), its characterized in that: the utility model discloses a wash-down pipe, including straw (1), return straw (1), flushing pipe (2), control mechanism (3) that are used for controlling washing and return suction route are cup jointed to the inside cover of return straw (1), the middle part of return straw (1) and flushing pipe (2) is cup jointed and is used for controlling the steady voltage mechanism (4) of wash solution velocity of flow, be provided with pressure sensing subassembly (5) that are used for responding to stomach pressure between control mechanism (3) and steady voltage mechanism (4).

2. The gastric lavage device for emergency internal medicine clinical use according to claim 1, wherein: control mechanism (3) are including advancing chamber head (31), the inside fixedly connected with inner tube (32) of entering chamber head (31), the inside fixedly connected with ball (33) of inner tube (32), the bottom sliding connection of inner tube (32) has spray tube (34), the bottom fixedly connected with arc piece (35) of spray tube (34), the peripheral fixedly connected with toper piece (36) of spray tube (34) bottom, fixedly connected with spring (37) between the top of toper piece (36) and inner tube (32).

3. The gastric lavage device for emergency internal medicine clinical use according to claim 2, wherein: inner tube (32) and ball (33) are all through branch fixed mounting, are entering chamber head (31) and inner tube (32) inside for the fretwork design, the bell jar has been seted up at the top of arc piece (35), the aperture at arc piece (35) and spray tube (34) center is less than the diameter of ball (33).

4. The gastric lavage device for emergency internal medicine clinical use according to claim 2, wherein: the bottom of the cavity inlet head (31) is provided with a round opening, and the diameter of the round opening is larger than that of the liquid spraying pipe (34) and smaller than the maximum diameter of the top of the conical block (36).

5. The gastric lavage device for emergency internal medicine clinical use according to claim 1, wherein: the pressure stabilizing mechanism (4) comprises a shell (41), a cylindrical cover (42) is fixedly connected to the inside of the shell (41), a liquid inlet pipe (43) is communicated with the top of the cylindrical cover (42), a liquid outlet pipe (44) is communicated with the bottom of the cylindrical cover (42), a propeller blade (45) is rotatably connected to the inside of the cylindrical cover (42), a transmission rod (46) is fixedly installed at the center of the propeller blade (45), a current limiting rod (47) is slidably connected to the inside of the bottom of the liquid outlet pipe (44), and a folding rod (48) is connected between the current limiting rod (47) and the transmission rod (46) in a transmission mode.

6. The gastric lavage device for emergency internal medicine clinical use of claim 5, wherein: the connection parts of the liquid inlet pipe (43) and the liquid outlet pipe (44) and the cylindrical cover (42) are respectively positioned on the left side of the top part of the cylindrical cover (42) and the right side of the top part of the cylindrical cover (42), the liquid inlet pipe (43) and the liquid outlet pipe (44) at the connection parts are designed in an inclined mode, and the propeller blades (45) are attached to the inner wall of the cylindrical cover (42).

7. The gastric lavage device for emergency internal medicine clinical use of claim 5, wherein: the transmission rod (46) extends downwards to the inside of the liquid outlet pipe (44), the folding rods (48) between the transmission rod and the current-limiting rods (47) are composed of two rotating rods which are mutually rotatably connected, the two groups of rotating rods are arranged in total, the transmission rod (46) and the current-limiting rods (47) are symmetrically distributed, and the outer side of the current-limiting rods (47) on the inner wall of the liquid outlet pipe (44) is provided with a conical opening.

8. The gastric lavage device for emergency internal medicine clinical use according to claim 2 or 5, wherein: the pressure sensing assembly (5) comprises a disc (51), the disc (51) is wrapped on the periphery of the transmission rod (46), an air bag (52) is fixedly connected to the inner side of the disc (51), pressure sensing balls (53) are fixedly mounted at the left end and the right end of the cavity inlet head (31), and air pipes (54) are fixedly connected to the pressure sensing balls (53) and the air bag (52).

9. The gastric lavage device for emergency internal medicine clinical use according to claim 2 or 5, wherein: the bottom of the straw returning (1) and the bottom of the flushing pipe (2) are respectively sleeved with the cavity inlet (31) and the inner pipe (32), the middle of the straw returning (1) is sleeved with the upper end and the lower end of the shell (41), the middle of the flushing pipe (2) is sleeved with the liquid inlet pipe (43) and the liquid outlet pipe (44), the tail end of the straw returning (1) is communicated with the liquid storage bottle (6), and the tail end of the flushing pipe (2) penetrates through the liquid storage bottle (6) and is communicated with the medicament bottle (7).

Technical Field

The invention relates to the technical field of gastric lavage facilities, in particular to a gastric lavage device for emergency internal medicine clinical use.

Background

The gastric lavage refers to a medical means of pouring liquid with certain components into the gastric cavity, mixing gastric contents and then pumping out the mixed liquid, repeating the steps for a plurality of times to remove toxicants and treat the disease, while the traditional gastric lavage device is used for lavage, in order to facilitate the flexible pipe to enter the tail of a patient, the flexible pipe is placed inside the patient to realize the lavage and the pumping out, and the one-way valve is arranged outside the flexible pipe, so that the toxicants in the stomach can be adhered to the inner wall of the flexible pipe in the pumping out process, and then enter the stomach along with the medicament in the process of lavage again, thereby reducing the efficiency of removing the toxicants, and the pressure setting, the liquid feeding and the liquid discharging conversion of the traditional gastric lavage machine are controlled by people when the patient is used for lavage, the liquid can be fed to the patient at a high speed and a large flow in a short time, and the high-pressure water flow repeatedly flushes the gastric mucosa can cause hyperemia, ulcer bleeding, and bleeding, Further, secondary pathological changes such as gastric perforation and gastric rupture are caused, which easily causes injury to the patient, and the flow rate of the medicament cannot be adjusted according to the change of the pressure in the stomach, and the patient is also easily injured.

In order to solve the problems, the inventor provides a gastric lavage device for clinical use in emergency internal medicine, which realizes that poisonous substances in the stomach cannot adhere to the inner wall of the lavage tube during suction in the process of gastric lavage, avoids the phenomenon that the poisonous substances enter the stomach again, improves the efficiency of gastric lavage, avoids secondary lesion caused by long-time repeated irrigation of large-flow liquid delivery and high-pressure water flow, improves the safety of gastric lavage, realizes self-adjustment of the outflow speed of medicaments according to the change of gastric pressure, and avoids secondary injury to patients.

Disclosure of Invention

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a lavage device of clinical usefulness of emergency internal medicine, includes the straw, the inside cover of straw is equipped with the flushing pipe, the control mechanism who is used for controlling to wash and the route is inhaled back has been cup jointed to the bottom of straw and flushing pipe, the steady voltage mechanism that is used for controlling the flushing fluid velocity of flow has been cup jointed to the middle part of straw and flushing pipe, be provided with the pressure sensing subassembly that is used for responding to stomach pressure between control mechanism and the steady voltage mechanism.

Preferably, control mechanism is including advancing the chamber head, advance the inside fixedly connected with inner tube of chamber head, the inside fixedly connected with ball of inner tube, the bottom sliding connection of inner tube has the spray tube, the bottom fixedly connected with circular arc piece of spray tube, the peripheral fixedly connected with toper piece of spray tube bottom, fixedly connected with spring between the top of toper piece and the inner tube.

Preferably, inner tube and ball are all through branch fixed mounting, are the fretwork design in entering chamber head and inner tube inside for liquid can normally pass through in entering chamber head and inner tube inside, the bell jar has been seted up at the top of circular arc piece, the aperture at circular arc piece and hydrojet center is less than the diameter of ball, makes the ball plug up the hydrojet.

Preferably, the round mouth has been seted up to the bottom of entering chamber head, and the diameter of round mouth is greater than the diameter of hydrojet pipe, is less than the maximum diameter at toper piece top, consequently, when hydrojet pipe rebound to toper piece and round mouth break away from, liquid can normally pass through in round mouth department, when hydrojet pipe drove toper piece rebound, can plug up the round mouth.

Preferably, the pressure stabilizing mechanism comprises a shell, a cylindrical cover is fixedly connected inside the shell, a liquid inlet pipe is communicated with the top of the cylindrical cover, a liquid outlet pipe is communicated with the bottom of the cylindrical cover, a propeller blade is rotatably connected inside the cylindrical cover, a transmission rod is fixedly installed at the center of the propeller blade, a flow limiting rod is slidably connected inside the bottom of the liquid outlet pipe, and a folding rod is connected between the flow limiting rod and the transmission rod in a transmission manner.

Preferably, the communicating parts of the liquid inlet pipe and the liquid outlet pipe and the cylindrical cover are respectively positioned on the left side of the top of the cylindrical cover and the right side of the top of the cylindrical cover, the liquid inlet pipe and the liquid outlet pipe at the communicating parts are designed in an inclined mode, and the propeller blades are attached to the inner wall of the cylindrical cover, so that liquid flowing downwards at the liquid inlet pipe can be obliquely rushed to the propeller blades inside the cylindrical cover, and the propeller blades are further pushed to rotate.

Preferably, the transmission rod extends downwards to the inside of the liquid outlet pipe, the folding rods between the transmission rod and the current-limiting rods are composed of two groups of rotating rods which are mutually rotatably connected, the two groups of rotating rods are symmetrically distributed between the transmission rod and the current-limiting rods, and the outer sides of the current-limiting rods on the inner wall of the liquid outlet pipe are provided with conical openings, so that the flow velocity inside the liquid outlet pipe can be changed in the process that the current-limiting rods move up and down.

Preferably, the pressure sensing assembly comprises a disc, the disc is wrapped on the periphery of the transmission rod, an air bag is fixedly connected to the inner side of the disc, pressure sensing balls are fixedly mounted at the left end and the right end of the cavity inlet head, and an air pipe is fixedly connected with the pressure sensing balls and the air bag.

Preferably, the bottom of the suction pipe and the bottom of the flushing pipe are respectively sleeved with the cavity inlet head and the inner pipe, the middle of the suction pipe is sleeved with the upper end and the lower end of the shell, the middle of the flushing pipe is sleeved with the liquid inlet pipe and the liquid outlet pipe, the tail end of the suction pipe is communicated with the liquid storage bottle, the tail end of the flushing pipe penetrates through the liquid storage bottle and is communicated with the medicament bottle, so that waste liquid sucked back by the suction pipe can enter the liquid storage bottle, and the flushing pipe can extract medicament from the medicament bottle.

The invention provides a gastric lavage device for emergency internal medicine clinic. The method has the following beneficial effects:

1. this lavage device of emergency internal medicine clinical usefulness, through the design of double-barrelled inside and outside straw and the flushing pipe, cooperation bottom control mechanism's design, when washing, can make the medicament enter into patient's stomach only through the flushing pipe, and when sucking, the mixture of stomach also upwards sucks through the cavity between straw and the flushing pipe, consequently realized carrying out the in-process of washing the stomach, the poison of stomach can not be the adhesion at the inner wall of flushing pipe when sucking, the phenomenon of poison reentrant stomach has been avoided, the efficiency of washing the stomach has been improved.

2. This lavage device of clinical usefulness of emergency internal medicine, design through steady voltage mechanism, design through propeller blade between feed liquor pipe and the drain pipe, the medicament that flows only can promote propeller blade earlier and rotate, just can reach the drain pipe and locate downward outflow, and then reach the effect of speed reduction stationary flow, utilize the transfer line to drive the rotation of folding rod simultaneously, when stirring once more, also can make the current-limiting rod reciprocate according to the difference of velocity of flow, the play liquid that makes the drain pipe carries out the self-interacting according to the speed of suction medicament, the secondary pathological change that the patient caused has been washed repeatedly for a long time to large-traffic liquid and highly compressed rivers of sending has been avoided, the security of lavage has been improved.

3. The gastric lavage device for emergency internal medicine clinical use can change the friction force when the screw propeller blades rotate according to the change of the stomach pressure by matching the pressure sensing component and the pressure stabilizing mechanism, and when the stomach pressure is increased, the friction force is increased, and the liquid flow rate is reduced; when stomach pressure reduces, frictional force reduces, and the increase liquid velocity of flow, and then has realized the self-interacting of medicament outflow speed according to the change of stomach pressure, has avoided causing the secondary injury to the patient.

Drawings

FIG. 1 is a cross-sectional view of a structure of the present invention;

FIG. 2 is a cross-sectional view of the flushing structure of the present invention;

FIG. 3 is a sectional view of the control mechanism of the present invention during dispensing;

FIG. 4 is a cross-sectional view of the control mechanism of the present invention in a suck-back configuration;

FIG. 5 is a cross-sectional view of the structure of the pressure stabilizing mechanism of the present invention;

FIG. 6 is a cross-sectional view of the structure of FIG. 5 taken along line A-A in accordance with the present invention;

fig. 7 is a perspective view of a cross-section of a cylindrical cage within the housing of the present invention.

In the figure: 1. a straw return pipe; 2. a flush tube; 3. a control mechanism; 31. a cavity inlet head; 32. an inner tube; 33. a ball; 34. a liquid spraying pipe; 35. an arc block; 36. a conical block; 37. a spring; 4. a pressure stabilizing mechanism; 41. a housing; 42. a cylindrical cage; 43. a liquid inlet pipe; 44. a liquid outlet pipe; 45. a propeller blade; 46. a transmission rod; 47. a flow-restricting lever; 48. a folding bar; 5. a pressure sensing assembly; 51. a disc; 52. an air bag; 53. a pressure sensing ball; 54. an air tube; 6. a liquid storage bottle; 7. a medicine bottle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the gastric lavage device for emergency internal medicine clinical use is as follows:

the first embodiment is as follows:

referring to fig. 1-4, a gastric lavage device for clinical use in emergency internal medicine comprises a suction tube 1, a washing tube 2 is sleeved in the suction tube 1, a control mechanism 3 for controlling washing and suction paths is sleeved at the bottom ends of the suction tube 1 and the washing tube 2, a pressure stabilizing mechanism 4 for controlling the flow rate of a washing liquid is sleeved at the middle parts of the suction tube 1 and the washing tube 2, and a pressure sensing assembly 5 for sensing the pressure of the stomach is arranged between the control mechanism 3 and the pressure stabilizing mechanism 4;

wherein, the control mechanism 3 comprises a cavity inlet 31, an inner tube 32 is fixedly connected inside the cavity inlet 31, a round ball 33 is fixedly connected inside the inner tube 32, a liquid spraying tube 34 is slidably connected at the bottom of the inner tube 32, an arc block 35 is fixedly connected at the bottom end of the liquid spraying tube 34, the inner tube 32 and the round ball 33 are fixedly installed through a support rod, the cavity inlet 31 and the inner tube 32 are hollowed out to enable liquid to normally pass through the cavity inlet 31 and the inner tube 32, a conical groove is formed at the top of the arc block 35, the aperture of the center of the arc block 35 and the liquid spraying tube 34 is smaller than that of the round ball 33, the liquid spraying tube 34 can be blocked by the round ball 33, a conical block 36 is fixedly connected at the periphery of the bottom of the liquid spraying tube 34, a round opening is formed at the bottom of the cavity inlet 31, the diameter of the round opening is larger than that of the liquid spraying tube 34 and smaller than the maximum diameter of the top of the conical block 36, therefore, when the liquid spraying tube 34 moves upwards to separate the conical block 36 from the round opening, liquid at the round mouth can normally pass through the round mouth, when the liquid spraying pipe 34 drives the conical block 36 to move downwards, the round mouth can be blocked, the spring 37 is fixedly connected between the top end of the conical block 36 and the inner pipe 32, through the design of the inner and outer double pipes of the suction pipe 1 and the flushing pipe 2 and the design of the bottom control mechanism 3, when the washing is carried out, the medicament can only enter the stomach of a patient through the flushing pipe 2, and when the suction is carried out, the mixture in the stomach is upwards sucked only through the cavity between the suction pipe 1 and the flushing pipe 2, so that the stomach washing process is realized, the poison in the stomach cannot be adhered to the inner wall of the flushing pipe 2 when the suction is carried out, the phenomenon that the poison enters the stomach again is avoided, and the stomach washing efficiency is improved.

Example two:

referring to fig. 1, 2 and 5-7, a gastric lavage device for clinical use in emergency internal medicine comprises a suction tube 1, a washing tube 2 is sleeved in the suction tube 1, a control mechanism 3 for controlling washing and suction paths is sleeved at the bottom ends of the suction tube 1 and the washing tube 2, a pressure stabilizing mechanism 4 for controlling the flow rate of a washing liquid is sleeved at the middle parts of the suction tube 1 and the washing tube 2, a pressure sensing assembly 5 for sensing the pressure in the stomach is arranged between the control mechanism 3 and the pressure stabilizing mechanism 4, the bottom ends of the suction tube 1 and the washing tube 2 are respectively sleeved with a cavity inlet 31 and an inner tube 32, the middle suction tube 1 is sleeved with the upper end and the lower end of a shell 41, the middle washing tube 2 is sleeved with a liquid inlet tube 43 and a liquid outlet tube 44, the tail end of the suction tube 1 is communicated with a liquid storage bottle 6, the tail end of the washing tube 2 is communicated with a medicament bottle 7 through the liquid storage bottle 6, so that the waste liquid sucked by the suction tube 1 can enter the liquid storage bottle 6, the flush tube 2 can draw the medicine from the medicine bottle 7;

wherein, the pressure stabilizing mechanism 4 comprises a shell 41, a cylindrical cover 42 is fixedly connected inside the shell 41, a liquid inlet pipe 43 is communicated with the top of the cylindrical cover 42, a liquid outlet pipe 44 is communicated with the bottom of the cylindrical cover 42, a propeller blade 45 is rotatably connected inside the cylindrical cover 42, the communication positions of the liquid inlet pipe 43 and the liquid outlet pipe 44 with the cylindrical cover 42 are respectively positioned at the left side of the top of the cylindrical cover 42 and the right side of the top, the liquid inlet pipe 43 and the liquid outlet pipe 44 at the communication positions are designed in an inclined manner, the propeller blade 45 is attached to the inner wall of the cylindrical cover 42, so that liquid flowing downwards at the liquid inlet pipe 43 can obliquely impact the propeller blade 45 inside the cylindrical cover 42 to further push the propeller blade 45 to rotate, a transmission rod 46 is fixedly installed at the center of the propeller blade 45, a current-limiting rod 47 is slidably connected inside the bottom of the liquid outlet pipe 44, and a folding rod 48 is connected between the current-limiting rod 47 and the transmission rod 46, the driving rod 46 extends downwards to the inside of the liquid outlet pipe 44, the folding rod 48 between the driving rod 46 and the current-limiting rod 47 is composed of two rotating rods which are mutually rotatably connected, and the two groups are provided, the driving rod 46 and the current-limiting rod 47 are symmetrically distributed, and the outer side of the current-limiting rod 47 on the inner wall of the liquid outlet pipe 44 is provided with a conical opening, so that the liquid flow velocity in the liquid outlet pipe 44 can be changed in the process that the current-limiting rod 47 moves up and down, through the design of the pressure stabilizing mechanism 4, through the design of the screw blades 45 between the liquid inlet pipe 43 and the liquid outlet pipe 44, the flowing medicament can only push the screw blades 45 to rotate firstly, and can only reach the liquid outlet pipe 44 to flow downwards, so as to achieve the effect of speed reduction and steady flow, meanwhile, the driving rod 46 is utilized to drive the folding rod 48 to rotate, and at the same time of stirring again, the current-limiting rod 47 can also move up and down according to make the liquid outlet of the liquid outlet pipe 44 self-regulating according to the speed of the medicament suction, avoids secondary lesion caused by the repeated washing of large-flow liquid delivery and high-pressure water flow for a long time, and improves the safety of gastric lavage.

Example three:

referring to fig. 1-7, a gastric lavage device for clinical use in emergency internal medicine comprises a suction tube 1, a washing tube 2 is sleeved in the suction tube 1, a control mechanism 3 for controlling washing and suction paths is sleeved at the bottom ends of the suction tube 1 and the washing tube 2, a pressure stabilizing mechanism 4 for controlling the flow rate of a washing liquid is sleeved at the middle parts of the suction tube 1 and the washing tube 2, and a pressure sensing assembly 5 for sensing the pressure of the stomach is arranged between the control mechanism 3 and the pressure stabilizing mechanism 4;

wherein, the pressure stabilizing mechanism 4 comprises a shell 41, a cylindrical cover 42 is fixedly connected inside the shell 41, a liquid inlet pipe 43 is communicated with the top of the cylindrical cover 42, a liquid outlet pipe 44 is communicated with the bottom of the cylindrical cover 42, a propeller blade 45 is rotatably connected inside the cylindrical cover 42, the communication positions of the liquid inlet pipe 43 and the liquid outlet pipe 44 with the cylindrical cover 42 are respectively positioned at the left side of the top of the cylindrical cover 42 and the right side of the top, the liquid inlet pipe 43 and the liquid outlet pipe 44 at the communication positions are designed in an inclined manner, the propeller blade 45 is attached to the inner wall of the cylindrical cover 42, so that liquid flowing downwards at the liquid inlet pipe 43 can obliquely impact the propeller blade 45 inside the cylindrical cover 42 to further push the propeller blade 45 to rotate, a transmission rod 46 is fixedly installed at the center of the propeller blade 45, a current-limiting rod 47 is slidably connected inside the bottom of the liquid outlet pipe 44, and a folding rod 48 is connected between the current-limiting rod 47 and the transmission rod 46, the transmission rod 46 extends downwards to the inside of the liquid outlet pipe 44, the folding rods 48 between the transmission rod 46 and the current limiting rods 47 are composed of two groups of rotating rods which are mutually and rotatably connected, the transmission rod 46 and the current limiting rods 47 are symmetrically distributed, and the outer sides of the current limiting rods 47 on the inner wall of the liquid outlet pipe 44 are provided with conical openings, so that the liquid flow velocity in the liquid outlet pipe 44 can be changed in the process that the current limiting rods 47 move up and down;

the pressure sensing assembly 5 comprises a disc 51, the disc 51 is wrapped on the periphery of the transmission rod 46, an air bag 52 is fixedly connected to the inner side of the disc 51, pressure sensing balls 53 are fixedly mounted at the left end and the right end of the cavity inlet head 31, the pressure sensing balls 53 and the air bag 52 are fixedly connected with an air pipe 54, and through the matching use of the pressure sensing assembly 5 and the pressure stabilizing mechanism 4, the friction force generated when the propeller blades 45 rotate can be changed according to the change of the stomach pressure, and the friction force is increased when the stomach pressure is increased, so that the liquid flow rate is reduced; when stomach pressure reduces, frictional force reduces, and the increase liquid velocity of flow, and then has realized the self-interacting of medicament outflow speed according to the change of stomach pressure, has avoided causing the secondary injury to the patient.

Example four:

referring to fig. 1-7, a gastric lavage device for emergency internal medicine clinical use comprises a suction tube 1, a washing tube 2 is sleeved inside the suction tube 1, a control mechanism 3 for controlling washing and suction paths is sleeved at the bottom ends of the suction tube 1 and the washing tube 2, the control mechanism 3 comprises a cavity inlet head 31, an inner tube 32 is fixedly connected inside the cavity inlet head 31, a round ball 33 is fixedly connected inside the inner tube 32, a liquid spraying tube 34 is slidably connected at the bottom of the inner tube 32, the inner tube 32 and the round ball 33 are fixedly installed through a support rod, the cavity inlet head 31 and the inner tube 32 are hollowed-out, so that liquid can normally pass through the cavity inlet head 31 and the inner tube 32, a conical groove is formed at the top of an arc block 35, the aperture of the center of the arc block 35 and the liquid spraying tube 34 is smaller than the diameter of the round ball 33, so that the liquid spraying tube 34 can be blocked by the round ball 33, the arc block 35 is fixedly connected at the bottom end of the liquid spraying tube 34, the periphery of the bottom of the liquid spraying pipe 34 is fixedly connected with a conical block 36, the bottom of the cavity inlet head 31 is provided with a round mouth, the diameter of the round mouth is larger than that of the liquid spraying pipe 34 and smaller than the maximum diameter of the top of the conical block 36, therefore, when the liquid spraying pipe 34 moves upwards until the conical block 36 is separated from the round mouth, liquid at the round mouth can normally pass through, when the liquid spraying pipe 34 drives the conical block 36 to move downwards, the round mouth can be blocked, a spring 37 is fixedly connected between the top end of the conical block 36 and the inner pipe 32, the bottom ends of the suction pipe 1 and the flushing pipe 2 are respectively sleeved with the cavity inlet head 31 and the inner pipe 32, the middle suction pipe 1 is sleeved with the upper end and the lower end of the shell 41, the middle flushing pipe 2 is sleeved with a liquid inlet pipe 43 and a liquid outlet pipe 44, the tail end of the suction pipe 1 is communicated with a liquid storage bottle 6, the tail end of the flushing pipe 2 is communicated with the liquid storage bottle 7 through the liquid storage bottle 6, so that waste liquid sucked by the suction pipe 1 can enter the liquid storage bottle 6, the washing tube 2 can extract the medicament from the medicament bottle 7, and the medicament can only enter the stomach of a patient through the washing tube 2 by the design of the internal and external double tubes of the return suction tube 1 and the washing tube 2 and the design of the bottom end control mechanism 3, and when washing, the mixture in the stomach is only upwards sucked through the cavity between the return suction tube 1 and the washing tube 2, so that the toxic substances in the stomach can not be adhered to the inner wall of the washing tube 2 when sucking, the phenomenon that the toxic substances enter the stomach again is avoided, and the stomach washing efficiency is improved.

The middle parts of the suction pipe 1 and the flushing pipe 2 are sleeved with a pressure stabilizing mechanism 4 for controlling the flow rate of flushing liquid, the pressure stabilizing mechanism 4 comprises a shell 41, the inside of the shell 41 is fixedly connected with a cylindrical cover 42, the top of the cylindrical cover 42 is communicated with a liquid inlet pipe 43, the bottom of the cylindrical cover 42 is communicated with a liquid outlet pipe 44, the inside of the cylindrical cover 42 is rotatably connected with a propeller blade 45, the communication parts of the liquid inlet pipe 43 and the liquid outlet pipe 44 and the cylindrical cover 42 are respectively positioned at the left side and the right side of the top of the cylindrical cover 42, the liquid inlet pipe 43 and the liquid outlet pipe 44 at the communication parts are designed in an inclined manner, the propeller blade 45 is attached to the inner wall of the cylindrical cover 42, so that liquid flowing downwards at the liquid inlet pipe 43 can obliquely impact the propeller blade 45 inside the cylindrical cover 42 to further push the propeller blade 45 to rotate, the center of the propeller blade 45 is fixedly provided with a transmission rod 46, the inside of the bottom of the liquid outlet pipe 44 is slidably connected with a flow limiting rod 47, the driving rod 46 extends downwards to the inside of the liquid outlet pipe 44, the folding rod 48 between the driving rod 46 and the current-limiting rod 47 is composed of two rotating rods which are mutually rotatably connected, and the two groups are provided, the two rotating rods are symmetrically distributed between the driving rod 46 and the current-limiting rod 47, and the outer side of the current-limiting rod 47 on the inner wall of the liquid outlet pipe 44 is provided with a conical opening, so that the liquid flow velocity in the liquid outlet pipe 44 can be changed in the process that the current-limiting rod 47 moves up and down, the folding rod 48 is in transmission connection between the current-limiting rod 47 and the driving rod 46, through the design of the pressure stabilizing mechanism 4 and the design of the spiral blade 45 between the liquid inlet pipe 43 and the liquid outlet pipe 44, the flowing medicament can only push the spiral blade 45 to rotate firstly, and can only reach the liquid outlet pipe 44 to flow downwards, and further achieve the effect of speed reduction and flow stabilization, meanwhile, the driving rod 46 is utilized to drive the folding rod 48 to rotate, and the current-limiting rod 47 can move up and down according to the difference of the flow velocity while stirring again, the liquid outlet of the liquid outlet pipe 44 is self-regulated according to the speed of sucking the medicament, so that secondary lesion of a patient caused by large-flow liquid delivery and high-pressure water flow for repeatedly washing for a long time is avoided, and the safety of gastric lavage is improved.

A pressure sensing assembly 5 used for sensing stomach pressure is arranged between the control mechanism 3 and the pressure stabilizing mechanism 4, the pressure sensing assembly 5 comprises a disc 51, the disc 51 is wrapped on the periphery of the transmission rod 46, an air bag 52 is fixedly connected to the inner side of the disc 51, pressure sensing balls 53 are fixedly installed at the left end and the right end of the cavity inlet head 31, an air pipe 54 is fixedly connected between the pressure sensing balls 53 and the air bag 52, the friction force generated when the screw paddle 45 rotates can be changed according to the change of the stomach pressure through the matching use of the pressure sensing assembly 5 and the pressure stabilizing mechanism 4, the friction force is increased when the stomach pressure is increased, and the liquid flow rate is reduced; when stomach pressure reduces, frictional force reduces, and the increase liquid velocity of flow, and then has realized the self-interacting of medicament outflow speed according to the change of stomach pressure, has avoided causing the secondary injury to the patient.

When in use, the cavity inlet head 31 is sleeved at the bottom ends of the suction pipe 1 and the flushing pipe 2, then the shell 41 is sleeved at the middle parts of the suction pipe 1 and the flushing pipe 2, and finally the liquid storage bottle 6 and the medicament bottle 7 are respectively sleeved at the suction pipe 1 and the flushing pipe 2 to complete the connection work of the gastric lavage pipeline;

when gastric lavage is performed, the cavity inlet head 31 extends into the stomach of a patient, after reaching a designated area, the flushing agent in the agent bottle 7 is extracted by using the flushing pipe 2, the agent in the flushing pipe 2 firstly enters the liquid inlet pipe 43 at the top of the shell 41 and enters the propeller blades 45 of the cylindrical cover 42 through the liquid inlet pipe 43, and the agent in the liquid inlet pipe 43 obliquely flows to the propeller blades 45 by utilizing the inclined design of the communication part of the liquid inlet pipe 43 and the cylindrical cover 42, so that the propeller blades 45 are pushed to rotate, and the agent entering the cylindrical cover 42 only exists between the agent and the propeller blades 45 through the design of the adhesion of the propeller blades 45 and the inner wall of the cylindrical cover 42, and can be driven to the other side and downwards flow out from the liquid outlet pipe 44 along with the rotation of the propeller blades 45, so that the friction force generated when the propeller blades 45 rotate is utilized, the flow of the medicament can be decelerated and stabilized, in the process that the propeller blades 45 are driven to rotate, the transmission rod 46 can be driven to rotate, so that the folding rod 48 at the bottom end is driven to rotate, in the process that the folding rod 48 rotates, the medicament entering the liquid outlet pipe 44 can be stirred again, meanwhile, the rotating speed of the folding rod 48 can be driven to be different according to the difference of the rotating speeds of the propeller blades 45 and the transmission rod 46, when the flow rate of the medicament is higher, the rotating speeds of the propeller blades 45 and the folding rod 48 can be driven to rotate faster, so that the outer side of the folding rod 48 can move outwards under the action of the increased centrifugal force, the folding rod 48 is folded and contracted, the flow limiting rod 47 is driven to move upwards, the passing area of the liquid in the liquid outlet pipe 44 is increased, and the liquid outlet of the liquid outlet pipe 44 can be self-adjusted according to the speed of flushing the medicament;

the medicament flowing downwards from the liquid outlet pipe 44 enters the inner pipe 32 in the cavity inlet head 31 through the flushing pipe 2 at the bottom, the liquid spraying pipe 34 and the circular arc block 35 move downwards under the action of the flushing force of the medicament, so that the circular arc block 35 is separated from the round ball 33, the medicament can enter the liquid spraying pipe 34 and is sprayed downwards, and then reaches the stomach of a patient to be flushed, and in the process that the liquid spraying pipe 34 moves downwards, the conical block 36 is also driven to move downwards to block the round mouth at the bottom of the cavity inlet head 31, when the flushing is finished, and when the mixture in the stomach needs to be sucked, the liquid spraying pipe 34 moves upwards under the action of the restoring force of the spring 37, the circular arc block 35 is driven to move upwards to abut against the round ball 33 to block the liquid spraying pipe 34, so that the medicament cannot flow out again, and the conical block 36 is driven to move upwards to open the round mouth at the bottom of the cavity inlet head 31, the mixture in the stomach can enter between the inner wall of the cavity entering head 31 and the inner tube 32, and is sucked upwards, so that the mixture enters between the suction pipe 1 and the washing tube 2, passes through the cavity between the inner wall of the shell 41 and the cylindrical cover 42, and is finally sucked into the liquid storage bottle 6 for collection, and then the mixture in the stomach is sucked;

in the process of flushing and pumping, through the design of the pressure sensing ball 53 outside the cavity inlet head 31, when the stomach pressure becomes high, the pressure sensing ball 53 is compressed, the air enters the air bag 52 through the air pipe 54 to expand the air bag 52, the friction force between the air bag and the transmission rod 46 is increased, the resistance of the rotation of the propeller blades 45 is increased, the medicine outflow speed is reduced, the self-adjustment of the medicine outflow speed according to the change of the stomach pressure is realized, and the secondary injury to a patient is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.