Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the intra-corporeal effusion pressure-stabilizing drainage device for the operation, which can control the change of the negative pressure range, is suitable for various sudden situations, does not need to replace a drainage bottle to interrupt the drainage process, effectively simplifies the operation process, saves the time and improves the negative pressure drainage effect.
The technical scheme of its solution includes the drainage bottle, drainage bottle right side is equipped with the gas guide cylinder of vertical placement, the drainage bottle passes through the air duct intercommunication with the gas guide cylinder, install the gas guide post that is located the gas guide cylinder top and be located the sealing block of gas guide cylinder below in the gas guide cylinder, the sealing block lower extreme is connected with the sealing piston who arranges in the gas guide cylinder, gas guide post and sealing block all can slide from top to bottom, the gas guide cylinder lower extreme is connected with double-deck gasbag structure, double-deck gasbag structure includes the outer gasbag that is connected with the gas guide cylinder lower extreme and is located the interior gasbag of outer gasbag inside, install the check valve on the double-deck gasbag structure bottom wall, form sealed space between outer gasbag and the sealing piston, interior gasbag communicates with the gas; when the pressures of the upper area and the lower area of the gas guide column are the same, the gas guide column blocks the gas channel, and when the pressure difference exists between the upper area and the lower area of the gas guide column, the gas guide column can slide up and down under the action of the pressure difference to be communicated with the gas channel; when the air bag is in an initial state, the sealing block is located below, the air channel is not blocked, the double-layer air bag structure is extruded, the outer air bag is deformed firstly, the sealing piston is pushed to slide upwards when the outer air bag is deformed, the sealing block is further pushed to slide upwards, the air channel is blocked, then the inner air bag is deformed, the air channel is blocked by the sealing block, so that the air in the inner air bag can only be discharged from the one-way valve, the double-layer air bag structure stops being extruded after the air in the inner air bag is discharged, the double-layer air bag structure can gradually recover to a state before deformation, the sealing block can slide downwards and does not block the air channel, at the moment, the inner air bag is in a negative pressure state, the air guide column slides downwards under the action of pressure difference, the air in the drainage bottle is communicated with.
The invention has the characteristics of novel conception, ingenious structure, simple operation, convenient use and the like, can greatly simplify the operation process of the negative pressure drainage device, enhances the stability of the negative pressure drainage process, facilitates the use of medical personnel, and is suitable for various sudden situations of the field environment.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-8, the drainage bottle comprises a drainage bottle 1, an air guide cylinder 2 which is vertically arranged is arranged on the right side of the drainage bottle 1, the drainage bottle 1 is communicated with the air guide cylinder 2 through an air guide tube 3, an air guide column 4 which is positioned above the air guide cylinder 2 and a sealing block 5 which is positioned below the air guide cylinder 2 are arranged in the air guide cylinder 2, the lower end of the sealing block 5 is connected with a sealing piston 6 which is arranged in the air guide cylinder 2, the air guide column 4 and the sealing block 5 can slide up and down, the lower end of the air guide cylinder 2 is connected with a double-layer air bag structure, the double-layer air bag structure comprises an outer air bag 7 which is connected with the lower end of the air guide cylinder 2 and an inner air bag 8 which is positioned in the outer air bag 7, a check valve 9 is arranged on the bottom wall; when the pressures of the upper area and the lower area of the gas guide column 4 are the same, the gas guide column 4 blocks the gas channel, and when the pressure difference exists between the upper area and the lower area of the gas guide column 4, the gas guide column 4 can slide up and down under the action of the pressure difference and is communicated with the gas channel; in the initial state, the sealing block 5 is located below, the gas channel is not blocked, the double-layer airbag structure is extruded, the outer airbag 7 deforms at first, the sealing piston 6 is pushed to slide upwards when the outer airbag 7 deforms, the sealing block 5 is further pushed to slide upwards, the gas channel is blocked, then the inner airbag 8 deforms, the gas channel is blocked by the sealing block 5, so that the gas in the inner airbag 8 can only be discharged from the one-way valve 9, the double-layer airbag structure stops being extruded after the gas in the inner airbag 8 is discharged, the double-layer airbag structure can gradually recover to the state before deformation, the sealing block 5 can slide downwards and does not block the gas channel any more, at the moment, the inner airbag 8 is in a negative pressure state, the gas guide column 4 slides downwards under the action of internal pressure difference and is communicated with the gas channel, the gas in the drainage bottle 1 flows into the airbag 8, and then the drainage.
In order to stabilize the negative pressure in the drainage bottle 1, a first disk 10 capable of rotating on the horizontal plane is installed in the air guide cylinder 2, a first through hole 11 is formed in the center of the first disk 10, the first through hole 11 is matched with the air guide column 4, an air suction groove 12 is formed in the upper portion of the outer edge surface of the air guide column 4, an air return groove 13 is formed in the lower portion of the outer edge surface of the air guide column 4, the width of the air return groove 13 is larger than that of the air suction groove 12, the top of the air return groove 13 is lower than the bottom of the air suction groove 12, a first support plate 14 which is arranged below the first disk 10 and is vertically communicated is fixed in the air guide cylinder 2, a first spring 15 is connected between the air guide column 4 and the first support plate 14, when in an initial state, under the action of the self gravity of the air guide column 4 and the first spring 15, the inner edge surface of the first through hole 11 is attached to the middle of the air guide column 4, the drainage bottle 1, the air guide column 4 can slide downwards under the action of air in the drainage bottle 1, so that the drainage bottle 1 is communicated with the inner air bag 8 through the air suction groove 12, and when the pressure in the inner air bag 8 is greater than that in the drainage bottle 1, the air guide column 4 can slide upwards under the action of the air in the inner air bag 8, so that the drainage bottle 1 is communicated with the inner air bag 8 through the air return groove 13.
In order to enable the sealing block 5 to better slide up and down, a second supporting plate 16 which is arranged below the sealing block 5 and above the sealing piston 6 and is communicated up and down is fixed in the gas guide cylinder 2, a second spring 17 is connected between the sealing block 5 and the second supporting plate 16, an annular groove is formed in the lower end face of the sealing piston 6, a first cylinder 18 is connected to the upper end of the inner gas bag 8, the upper end of the first cylinder 18 is inserted into the annular groove, the annular groove cannot be separated from the first cylinder 18 when the sealing piston 6 slides up and down, the sealing piston 6 can drive the sealing block 5 to slide up in the gas guide cylinder 2 when the sealing piston 6 slides up and down, and the gas guide cylinder 2 is blocked.
In order to realize the adjustment of the negative pressure range in the drainage bottle 1, the thickness of the first disc 10 gradually changes in the circumferential direction, a pin 19 is fixed on the outer side wall of the first disc 10, the other end of the pin 19 is arranged on the outer side of the gas guide cylinder 2, a poking pin 19 is arranged at one end of the gas guide cylinder 2 and can drive the first disc 10 to rotate in the horizontal plane, the horizontal rotation of the first disc 10 can adjust the thickness of the contact side of the first disc 10 and one side of the gas suction groove 12 and one side of the gas return groove 13 of the gas guide column 4, and further the negative pressure range of the drainage bottle 1 can be adjusted.
In order to realize the smooth discharge of hydrops in the drainage bottle 1, drainage bottle 1 below be connected with fluid-discharge tube 20, install the pressure valve of arranging in fluid-discharge tube 20 on the diapire of drainage bottle 1, the valve gap 21 of pressure valve articulates on 1 diapire of drainage bottle and is connected with the torsional spring between the two, valve gap 21 can be detained under the torsional spring effect on 1 diapire of drainage bottle, shutoff drainage bottle 1, the outer wall of fluid-discharge tube 20 is fixed with permanent magnet 22, when valve gap 21 is close to permanent magnet 22, the adsorbable valve gap 21 of permanent magnet 22 makes it hug closely the fluid-discharge tube 20 inside wall.
In order to completely discharge the accumulated liquid in the drainage bottle 1, an air inlet pipe 23 is connected above the inner air bag 8, a third support plate 24 is fixed in the air inlet pipe 23, a second through hole 25 is formed in the end surface of the third support plate 24, an air inlet piston 26 which can be attached to the third support plate 24 to slide left and right is installed in the air inlet pipe 23, the left end of the air inlet piston 26 is connected with a straight rod 27, the other end of the straight rod 27 penetrates through the side wall of the drainage pipe 20 and is arranged in the drainage pipe 20, the straight rod 27 is pushed to slide right when the valve cover 21 is attached to the inner side wall of the drainage pipe 20 under the suction of the permanent magnet 22, a third through hole 28 is formed, the third through hole 28 is always positioned in the air inlet pipe 23, a third spring 29 is connected between the air inlet piston 26 and the right side wall of the air inlet pipe 23, the third spring 29 is positioned at the original length, the second through hole 25 is not communicated with the third through hole 28, and the air inlet pipe 23 is in a blocking state.
When the double-layer air bag structure is used specifically, the double-layer air bag structure is not deformed in the initial state, at the moment, the double-layer air bag structure is extruded, under the action of external force, the outer air bag 7 is compressed firstly, the inner air bag 8 is not compressed temporarily, the gas in the outer air bag 7 can push the sealing piston 6 to slide upwards, further the sealing block 5 is pushed to slide upwards, the gas channel is blocked, the position of the second supporting plate 16 is unchanged, the second spring 17 is stretched, at the moment, the double-layer air bag structure is continuously extruded, the inner air bag 8 is compressed, because the sealing block 5 blocks the gas channel, the gas in the inner air bag 8 can extrude the one-way valve 9 to open, the double-layer air bag structure is continuously extruded, the gas in the inner air bag 8 is discharged from the one-way valve 9, the double-layer air bag structure is stopped to be extruded, under the action of the material, the outer air bag 7 and the inner air, the sealing block 5 slides downwards under the action of the second spring 17, so that the sealing block 5 does not block a gas channel any more, negative pressure is formed inside the inner air bag 8, at the moment, the pressure difference of the upper region and the lower region of the gas guide column 4 is overlarge, the gas in the drainage bottle 1 can push the gas guide column 4 to slide downwards, so that the first spring 15 is compressed and is communicated with the gas channel through the air suction groove 12, the speed of the gas in the drainage bottle 1 flowing into the inner air bag 8 is relatively slow due to the small width of the air suction groove 12, the pressure in the drainage bottle 1 cannot be reduced too fast, a good promoting effect on stable-pressure extraction of pleural effusion of the drainage bottle 1 is achieved, when the gas in the drainage bottle 1 flows to the inner air bag 8, the pressure difference between the upper region and the lower region of the gas guide column 4 is also gradually reduced, when the pressure difference between the upper region and the lower region of the gas guide column 4 is reduced to a certain degree, the gas, the gas channel is plugged again, in the process, as the drainage bottle 1 is always in a negative pressure state, the effusion can be continuously sucked from the thoracic cavity, the pressure intensity in the drainage bottle 1 can be increased along with the increase of the effusion in the drainage bottle 1, the pressure difference between the upper area and the lower area of the gas guide column 4 is increased, the gas guide column 4 can slide downwards again under the action of the pressure difference to be communicated with the gas channel again, the pressure difference between the two is reduced again along with the gradual flow of the gas into the inner air sac 8, the gas guide column 4 can slide upwards again to plug the gas channel.
In the negative pressure drainage process, if the negative pressure in the drainage bottle 1 needs to be changed, the pin 29 can be horizontally rotated to drive the first disk 10 to horizontally rotate, the thickness of the contact side of the first disk 10 and one side of the air suction groove 12 and one side of the air return groove 13 of the air guide column 4 is adjusted, and then the negative pressure in the drainage bottle 1 is adjusted
The pressure applied to the pressure valve is gradually increased along with the gradual increase of the accumulated liquid in the drainage bottle 1, when the pressure applied to the pressure valve can overcome the elasticity of the torsion spring, the valve cover 21 is opened, the accumulated liquid can be discharged from the drainage tube 20, the valve cover 21 is tightly attached to the inner wall of the drainage tube 20 under the action of the permanent magnet 22 after being opened, so that the accumulated liquid can be conveniently discharged, when the valve cover 21 is tightly attached to the inner side wall of the drainage tube 20, the straight rod 27 is pressed to slide rightwards, the air inlet piston 26 is pushed to slide rightwards, the third spring 29 is compressed, the second through hole 25 is communicated with the third through hole 28 and is further communicated with the air inlet pipe 23, as the inner air sac 8 and the drainage bottle 1 are in a negative pressure state at the moment, the sterilized air can flow into the inner air sac 8 through the air inlet pipe 23 and then flows into the drainage bottle 1 through the air guide pipe 2, so that the accumulated liquid can be completely discharged from the drainage, at this time, the suction force of the permanent magnet 22 to the valve cover 21 cannot overcome the elastic force of the torsion spring, the valve cover 21 is closed under the elastic force of the torsion spring, and the air intake piston 26 slides leftward under the action of the third spring 29, so that the second through hole 25 and the third through hole 28 are not communicated, and the air intake pipe 23 is plugged again.
When the device discharges liquid, the air inlet pipe 23 and the inner air sac 8 are in a communicated state, the disinfected air flows into the inner air sac 8 through the air inlet pipe 23, so that the pressure of the inner air sac 8 is recovered to the atmospheric pressure, at the moment, the pressure in the inner air sac 8 is greater than the pressure in the drainage bottle 1, the air guide column 4 can slide upwards, the drainage bottle 1 and the inner air sac 8 are communicated through the air return groove 13, the air flows into the drainage bottle 1 through the air guide pipe 3, the flow rate of the air flowing into the drainage bottle 1 from the inner air sac 8 can be accelerated due to the greater width of the air return groove 13, so that the pressure of the drainage bottle 1 cannot be reduced too fast during liquid discharge, meanwhile, the pressure in the drainage bottle 1 cannot be reduced to be so small as to strain inner tissues, at the moment, the pressure difference between the upper area and the lower area of the air guide column 4 is the negative pressure in the drainage bottle 1, and the negative pressure in the drainage bottle 1 can be controlled by, when the accumulated liquid in the drainage bottle 1 is drained, the air inlet pipe 23 is plugged again.
At the moment, the air bag is squeezed again, the air in the inner air bag 8 can be discharged through the check valve 9 again, the inner air bag 8 is changed into a negative pressure state, when the pressure difference between the upper region and the lower region of the air guide column 4 reaches a certain degree, the air guide column 4 can slide downwards, the air channel is communicated through the air suction groove 12, the negative pressure state is changed in the drainage bottle 1, the drainage bottle 1 continues to suck the accumulated liquid from the thoracic cavity, the pressure in the drainage bottle 1 gradually increases along with the gradual increase of the accumulated liquid, when the pressure difference between the upper region and the lower region of the air guide column 4 reaches a certain value, the air guide column 4 can slide downwards again to be communicated with the air channel, the previous process is repeated, and the purposes of pressure stabilization and automatic liquid drainage of the drainage bottle.
According to the invention, the width of the air suction groove 12 is smaller than that of the air return groove 13, so that the air in the drainage bottle 1 flows out slowly and flows in quickly, and further the pressure intensity in the drainage bottle 1 changes slowly, so that discomfort of a patient is avoided.
According to the invention, the negative pressure range in the drainage bottle 1 can be adjusted by controlling the thickness of the contact side of the first disc 10 and the air guide column 4, so that the device can adjust proper negative pressure according to the drainage stage of a patient, and the drainage effect is more obvious.
The negative pressure is produced by the double-layer air bag structure, so that the device does not depend on electric power and can be used for emergency situations such as field rescue.
According to the drainage device, the liquid is drained through the liquid drainage pipe 20, and the drainage bottle 1 is not replaced, so that the drainage device can conduct drainage continuously in the liquid drainage process, and the condition that the drainage process is interrupted due to replacement of the drainage bottle 1 is avoided.
The invention has the characteristics of novel conception, ingenious structure, simple operation, convenient use and the like, can greatly simplify the operation process of the negative pressure drainage device, enhances the stability of the negative pressure drainage process, facilitates the use of medical personnel, and is suitable for various sudden situations of the field environment.