CN115998966A - Negative pressure drainage device for hepatobiliary pancreas operation - Google Patents

Abstract

The invention discloses a negative pressure drainage device for hepatobiliary pancreas operation, and belongs to the technical field of medical appliances. This hepatobiliary pancreas operation negative pressure drainage device includes waste liquid jar and air pump, still includes: a drainage sleeve comprising an inner tube and an outer tube; the switching mechanism comprises a rotary table, a mounting ring and a casing, wherein the rotary table is provided with a central hole and an annular groove, the bottom end of the annular groove is provided with a first through hole, a second through hole is formed in the mounting ring, the second through hole can be communicated with the first through hole, a water supply device is communicated with the second through hole, a first grid plate is fixedly connected in the central hole, a first grid hole is formed in the first grid plate, a second grid plate is fixedly connected in the annular hole, a second grid hole is formed in the second grid plate, and when the first through hole on the rotary table to the rotary table is communicated with the second through hole on the mounting ring, the first grid hole is communicated with the second grid hole. The negative pressure drainage device for liver, gall and pancreas operation can inhibit bacteria breeding in diseased organs to the greatest extent, thereby being beneficial to growth of granulation tissues of diseased organs of patients and accelerating wound healing.

Description

Negative pressure drainage device for hepatobiliary pancreas operation

Technical Field

The invention relates to the technical field of medical appliances, in particular to a negative pressure drainage device for liver, gall and pancreas operation.

Background

When treating liver, gall and pancreas hydrops, hepatobiliary surgery often requires drainage of a patient, so that liver ascites, gall bladder hydrops and pancreas hydrops of the patient are drained completely, and diseases of the patient are relieved. Negative pressure drainage refers to that effusion, inflammatory seepage and pus of a diseased organ of a patient are led out of the body by utilizing a negative pressure suction device so as to reduce infection of the diseased organ of the patient and create conditions for subsequent treatment. When negative pressure drainage is carried out on a diseased organ of a patient, the cleaner and more thorough the cleaning of effusion in the diseased organ of the patient is, the more bacteria breeding of the diseased organ can be inhibited, and the faster the subsequent wound surface of the patient heals.

The traditional negative pressure drainage device for liver, gall and pancreas surgery generally comprises a waste liquid cylinder, an air pump, a drainage tube and other parts, wherein the air pump and the drainage tube are communicated with the waste liquid cylinder, the air pump is used for forming negative pressure in the waste liquid cylinder, and the drainage tube drains accumulated liquid in the liver, gall and pancreas by means of the negative pressure in the waste liquid cylinder.

However, the existing negative pressure drainage device for liver, gall and pancreas surgery is used for drainage of diseased organs of patients, the inner wall of the diseased organs can shrink due to the lack of accumulated water, so that the inner wall of the diseased organs can directly contact with the orifice of a drainage tube, the drainage tube is blocked, drainage is not smooth, the inner wall of the diseased organs is provided with folds, the contracted diseased organs can retain certain residual accumulated liquid in the folds, and solid foreign matters in the accumulated liquid can be separated out and attached to the inner wall of the diseased organs along with the reduction of the accumulated liquid in the diseased organs, so that the residual accumulated liquid and the attached solid foreign matters are unfavorable for postoperative rehabilitation of livers, gall and pancreas, and bacteria breeding is easy to cause.

Disclosure of Invention

The invention aims to overcome the problems in the prior art, and provides a negative pressure drainage device for liver, gall and pancreas operation, which can fill a certain amount of physiological saline into a diseased organ after draining a certain amount of effusion on the diseased organ, simultaneously clean and drain the diseased organ, prevent the inner wall of the diseased organ from collapsing prematurely under the support of the physiological saline, clean residual effusion in folds of the diseased organ and solid foreign matters attached to the inner wall of the diseased organ along with the cleaning of the physiological saline, thereby improving the thoroughness of effusion and solid foreign matter cleaning in the diseased organ of a patient, inhibiting bacterial growth in the diseased organ to the maximum extent, promoting the growth of granulation tissue of the diseased organ of the patient, and being beneficial to postoperative rehabilitation of the diseased organ.

The invention provides a negative pressure drainage device for hepatobiliary pancreas operation, which comprises a waste liquid cylinder and an air pump, wherein the air pump is connected with the waste liquid cylinder, and further comprises:

the drainage sleeve comprises an inner tube and an outer tube, wherein the inner tube is arranged in the outer tube;

the switching mechanism comprises a rotary table, a mounting ring and a casing, wherein the rotary table is provided with a central hole and an annular groove, one end of the central hole is communicated with the inner pipe, a gap between the inner pipe and the outer pipe is communicated with the annular groove, a first through hole is formed in the bottom end of the annular groove, the rotary table is pivotally connected with an annular hole shaft of the mounting ring, the mounting ring is fixedly connected with the casing, a second through hole is formed in the mounting ring, a water supply device is communicated with the second through hole, a first grid plate is fixedly connected in the central hole, a first grid hole is formed in the first grid plate, a second grid plate is fixedly connected in the annular hole, a second grid hole is formed in the second grid plate, the first grid plate is attached to the second grid plate, and when the first through hole on the rotary table is communicated with the second through hole on the mounting ring, the first grid hole is communicated with the second grid hole, and the annular hole is communicated with the waste liquid cylinder.

Preferably, the rotary table is provided with an arc groove, the mounting ring is provided with a third through hole and an arc sliding block, the arc sliding block is in sealing sliding connection with the arc groove, the arc sliding block separates the arc groove into a first cavity and a second cavity, the first cavity is communicated with the third through hole, a connecting pipe is communicated between the second through hole and the water supply device, the third through hole is communicated with the connecting pipe, the outer edge of the rotary table is provided with a circle of tooth block, the sleeve is provided with a support, the support is hinged with a connecting rod, one end of the connecting rod is provided with an arc clamping block, the other end of the connecting rod is connected with a spring, the spring is used for applying elastic force to the connecting rod, and the arc clamping block is clamped in the tooth block under the action of elastic force of the spring.

Preferably, the water supply device comprises an electromagnetic reversing valve and a water storage tank, physiological saline is contained in the water storage tank, an air port A of the electromagnetic reversing valve is communicated with the atmosphere, an air port B of the electromagnetic reversing valve is communicated with the top end of the water storage tank, the bottom end of the water storage tank is communicated with the connecting pipe, an air port P of the electromagnetic reversing valve is communicated with an air outlet of the air pump, an air inlet of the air pump is communicated with the top end of the waste liquid cylinder, the top end of the waste liquid cylinder is also communicated with the annular ring, the air pump is electrically connected with a controller, and the controller is electrically connected with the electromagnetic reversing valve, so that the electromagnetic reversing valve can be switched from the air port P to the air port B.

Preferably, a negative pressure regulating mechanism is arranged between the waste liquid cylinder and the annular hole, the annular hole is communicated with the negative pressure regulating mechanism, the negative pressure regulating mechanism is communicated with the top end of the waste liquid cylinder, and the negative pressure regulating mechanism is used for regulating the negative pressure in the waste liquid cylinder.

Preferably, the top end of the outer tube is provided with a liquid pressure sensor, the liquid pressure sensor is used for detecting a real-time liquid pressure value of effusion in a diseased organ, the liquid pressure sensor is electrically connected with a controller, the controller is electrically connected with a color-changing lamp bead, a preset liquid pressure value interval is preset in the controller, the controller compares the real-time liquid pressure value with the preset liquid pressure value interval, when the real-time liquid pressure value is higher than the highest value of the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display red, when the real-time liquid pressure value is within the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display green, and when the real-time liquid pressure value is lower than the lowest value of the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display blue.

Preferably, the waste liquid cylinder is communicated with an air pressure sensor, the air pressure sensor is electrically connected with the controller, the controller is electrically connected with a display, the air pressure sensor is used for detecting a real-time air pressure value in the waste liquid cylinder, and the controller controls the display to display the real-time air pressure value.

Preferably, the outer tube is far away from carousel one end edge connection and has first bulb, the inner tube is far away from carousel one end edge connection and has the second bulb, is equipped with the filter screen between first bulb and the second bulb, is equipped with a plurality of fourth through-holes on first bulb and the second bulb, and the outer tube is far away from the lateral wall of carousel one end and is equipped with the fifth through-hole of a plurality of equipartitions, is equipped with the sealing ring in the clearance between outer tube and the inner tube, the sealing ring is located between fifth through-hole and the first bulb.

Preferably, a rubber pad is arranged on the side wall of the arc-shaped sliding block, and the rubber pad is attached to the inner wall of the arc-shaped groove.

Preferably, the outer tube is detachably connected with the turntable, and the inner tube is detachably connected with the turntable.

Compared with the prior art, the invention has the beneficial effects that: according to the negative pressure drainage device for liver, gall and pancreas operation, when the patient organ is drained, a certain amount of accumulated liquid is drained to the patient organ, a certain amount of normal saline is filled into the patient organ, meanwhile, the patient organ is cleaned and drained, under the support of the normal saline, the inner wall of the patient organ can be prevented from premature collapse, and along with the cleaning of the normal saline, residual accumulated liquid in folds of the patient organ and solid foreign matters attached to the inner wall of the patient organ can be cleaned, so that the thoroughness of the cleaning of the accumulated liquid and the solid foreign matters in the patient organ is improved, bacterial breeding in the patient organ is inhibited to the greatest extent, growth of granulation tissues of the patient organ is promoted, and postoperative recovery of the patient organ is facilitated.

This negative pressure drainage device compares in current negative pressure drainage device that has cleaning function, can in time block the supply of normal saline when normal saline's water pressure exceeds safe water pressure to when utilizing normal saline to wash patient's diseased organ, prevent that normal saline's water pressure from being too high from causing the injury to the patient, and through switching mode of operation, carry out drainage earlier to diseased organ then wash, can reduce the water pressure that patient's diseased organ bore, thereby prevent that the water pressure is too big to cause secondary injury to this diseased organ in the diseased organ. Through setting up electromagnetic directional valve and water storage tank, can utilize an air pump to realize simultaneously that drive normal saline washs patient's sick organ to and the washing waste liquid in the sick organ of extraction patient, thereby can balance the volume of normal saline that flows into patient's sick organ and the volume of extraction washing waste liquid, thereby prevent when both imbalances, the water pressure of normal saline causes patient secondary injury or causes the injury to the patient when the negative pressure suction in the useless hydraulic cylinder. Through setting up negative pressure adjustment mechanism, can be in the negative pressure that can adjust the waste liquid jar to the patient's of adaptation different circumstances operation requirement, thereby when preventing that the negative pressure in the waste liquid jar from being too big, lead to the suction of inner tube too big to cause the injury to the patient. Through setting up liquid pressure sensor, controller and color-changing lamp pearl, utilize liquid pressure sensor to detect the real-time liquid pressure value of hydrops in the sick organ, the controller is according to the color that the color-changing lamp pearl shows of real-time liquid pressure value control can carry out real-time supervision to the liquid pressure in the sick organ to when avoiding the sick organ to lose liquid support and shrink to the drainage sleeve pipe of this device and the contact of sick organ inner wall of patient in the sick organ inner wall of liquid pressure too low, thereby avoid drainage sleeve pipe's negative pressure suction to cause the damage to patient's tracheal inner wall mucosa. Through setting up air pressure sensor, can make things convenient for medical personnel to monitor the real-time atmospheric pressure value in the waste liquid jar to and make things convenient for medical personnel to adjust the negative pressure value in the waste liquid jar, realize the accurate regulation and control to the negative pressure in the waste liquid jar, further prevent that the suction of inner tube from being too big from causing the injury to the patient. Through setting up first bulb, second bulb and filter screen, promote the cleaning performance of normal saline, can prevent that the solid foreign matter in hydrops or the waste liquid from causing inner tube or other parts to block up to guarantee this device and can normal operating, can also prevent that normal saline from directly flowing back into in the waste liquid jar, lead to the utilization ratio of normal saline not high. Through setting up the rubber pad, can promote the leakproofness of the first cavity of arc recess to prevent that normal saline from revealing into the second cavity, lead to high pressure normal saline can not normally drive arc slider motion, further prevent that normal saline's water pressure from being too high causes the injury to the patient. Through setting up outer tube and carousel into detachable connection, set up inner tube and carousel into detachable connection, can make things convenient for whole drainage sheathed tube installation and dismantlement to make things convenient for the maintenance of this device.

Drawings

FIG. 1 is a schematic view of a first mode of operation of the present invention;

FIG. 2 is a schematic diagram of a second mode of operation of the present invention;

FIG. 3 is a schematic structural view of a third mode of operation of the present invention;

FIG. 4 isbase:Sub>A schematic view of the structure of the A-A surface of the present invention;

FIG. 5 is a schematic diagram of the liquid path of the present invention;

fig. 6 is a schematic structural diagram of the switching mechanism of the present invention.

Reference numerals illustrate:

101. waste cylinder, 102, air pump, 103, inner tube, 104, outer tube, 105, turntable, 106, mounting ring, 107, casing, 108, central bore, 109, annular groove, 110, first through hole, 111, annular ring, 112, second through hole, 113, connecting tube, 114, first grid, 115, first grid, 116, second grid, 117, second grid, 201, arc groove, 202, third through hole, 203, arc slide, 204, first cavity, 205, second cavity, 206, tooth block, 207, support, 208, connecting rod, 209, arc clamp, 210, spring, 301, electromagnetic reversing valve, 302, water storage tank, 4, negative pressure regulating mechanism, 5, air pressure sensor, 601, first ball, 602, second ball, 603, filter screen, 604, fourth through hole, 605, fifth through hole, 606, sealing ring, 7, rubber pad, 8, liquid pressure sensor.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to fig. 1-6, but it should be understood that the scope of the invention is not limited by the specific embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

as shown in fig. 1-6, the negative pressure drainage device for hepatobiliary pancreas surgery provided by the invention comprises a waste liquid cylinder 101 and an air pump 102, wherein the air pump 102 is connected with the waste liquid cylinder 101, and further comprises: the drainage sleeve comprises an inner tube 103 and an outer tube 104, wherein the inner tube 103 is arranged in the outer tube 104; the switching mechanism comprises a rotary table 105, a mounting ring 106 and a casing 107, wherein the rotary table 105 is provided with a central hole 108 and an annular groove 109, one end of the central hole 108 is communicated with the inner tube 103, a gap between the inner tube 103 and the outer tube 104 is communicated with the annular groove 109, a first through hole 110 is formed in the bottom end of the annular groove 109, the rotary table 105 is in shaft pivot connection with the annular hole 111 of the mounting ring 106, the mounting ring 106 is fixedly connected with the casing 107, a second through hole 112 is formed in the mounting ring 106, the second through hole 112 is communicated with a water supply device, a first grid 114 is fixedly connected in the central hole 108, a first grid hole 115 is formed in the first grid 114, a second grid 116 is fixedly connected in the annular hole 111, a second grid hole 117 is formed in the second grid 116, the first grid 114 is attached to the second grid 116, and when the first through hole 110 on the rotary table 105 is communicated with the second through hole 112 on the mounting ring 106, the first grid hole 115 is communicated with the second grid hole 117, and the annular hole 111 is communicated with the waste liquid cylinder 101.

The working principle of example 1 will now be briefly described:

when the device is used, the whole drainage sleeve is inserted into the target position of a patient. At the beginning, the effusion in the diseased organ of the patient is full, the liquid pressure of the effusion in the diseased organ is larger, the pressure born by the wound surface of the diseased organ of the patient is larger, and at the moment, if the diseased organ is filled with normal saline for cleaning, the pressure born by the wound surface of the diseased organ of the patient can be increased, so that secondary damage to the diseased organ is easy to cause. Therefore, the effusion of the diseased organ needs to be drained firstly until the pressure of the effusion of the diseased organ is drained to a lower level, then the diseased organ of the patient is cleaned and drained, and the residual effusion of the diseased organ of the patient can be cleaned to the greatest extent.

Firstly, inserting a drainage sleeve into a diseased organ of a patient: the turntable 105 is rotated until the first through hole 110 is disconnected from the second through hole 112, the first grid hole 115 on the first grid plate 114 is disconnected from the second grid hole 117 on the second grid plate 116, at this time, the inner tube 103 of the drainage sleeve is disconnected from the waste liquid cylinder 101 and the air pump 102, and the gap between the inner tube 103 and the outer tube is disconnected from the water supply device. At this time, the drainage sleeve neither pumps nor sprays normal saline, thereby avoiding the negative pressure generated by the drainage sleeve or the impact of spraying normal saline on the operation of inserting the drainage sleeve, and ensuring that medical staff can accurately insert the drainage sleeve into a diseased organ of a patient.

The patient's diseased organ is then drained: rotating the rotary disc 105 until the first through hole 110 is disconnected from the second through hole 112, the first grid hole 115 on the first grid plate 114 is communicated with the second grid hole 117 on the second grid plate 116, the air pump 102 pumps air from the waste liquid cylinder 101, the air pressure in the waste liquid cylinder 101 is reduced, negative pressure in the waste liquid cylinder 101 generates suction force in the inner tube 103 through the annular hole 111 and the central hole 108, the suction force of the inner tube 103 sucks out the effusion in the diseased organ of the patient, the effusion enters the tube hole of the inner tube 103 and then enters the central hole 108, the effusion enters the annular hole 111 through the first grid hole 115 and the second grid hole 117, the annular hole 111 is communicated with the waste liquid cylinder 101 through the liquid through tube, and the effusion in the annular hole 111 enters the waste liquid cylinder 101, so that the effusion in the diseased organ is drained until the liquid pressure in the diseased organ of the patient is lower.

Finally, the diseased organ of the patient is cleaned and drained: the rotary disc 105 is rotated to the first through hole 110 on the rotary disc 105 to be communicated with the second through hole 112 on the mounting ring 106, and the first grid hole 115 is communicated with the second grid hole 117, at this time, physiological saline is supplied into the second through hole 112 through the water supply device, enters the gap between the outer tube 104 and the inner tube 103 through the first through hole 110 and the annular groove 109, then flows out of the gap between the outer tube 104 and the inner tube 103, flows into a diseased organ of a patient, washes the diseased organ, and waste liquid after washing is pumped into the waste liquid cylinder 101 from the tube hole of the inner tube 103, so that the cleaning of the diseased organ of the patient is completed.

According to the negative pressure drainage device for liver, gall and pancreas operation, when the patient organ is drained, a certain amount of accumulated liquid is drained to the patient organ, a certain amount of normal saline is filled into the patient organ, meanwhile, the patient organ is cleaned and drained, under the support of the normal saline, the inner wall of the patient organ can be prevented from premature collapse, and along with the cleaning of the normal saline, residual accumulated liquid in folds of the patient organ and solid foreign matters attached to the inner wall of the patient organ can be cleaned, so that the thoroughness of the cleaning of the accumulated liquid and the solid foreign matters in the patient organ is improved, bacterial breeding in the patient organ is inhibited to the greatest extent, growth of granulation tissues of the patient organ is promoted, and postoperative recovery of the patient organ is facilitated.

Example 2:

on the basis of the embodiment 1, in order to timely block the supply of the physiological saline when the water pressure of the physiological saline exceeds the safe water pressure, thereby preventing the injury to the patient caused by the too high water pressure of the physiological saline when the diseased organ of the patient is washed by the physiological saline.

As shown in fig. 1-4 and 6, an arc-shaped groove 201 is formed in the turntable 105, a third through hole 202 and an arc-shaped sliding block 203 are formed in the mounting ring 106, the arc-shaped sliding block 203 is connected with the arc-shaped groove 201 in a sealing sliding manner, the arc-shaped sliding block 203 divides the arc-shaped groove 201 into a first cavity 204 and a second cavity 205, the first cavity 204 is communicated with the third through hole 202, a connecting pipe 113 is communicated between the second through hole 112 and a water supply device, the third through hole 202 is communicated with the connecting pipe 113, a circle of tooth blocks 206 are arranged on the outer edge of the turntable 105, a support 207 is arranged on the casing 107, a connecting rod 208 is hinged to the support 207, an arc-shaped clamping block 209 is arranged at one end of the connecting rod 208, a spring 210 is connected to the other end of the connecting rod 208, the spring 210 is used for applying elastic force to the connecting rod 208, and the arc-shaped clamping block 209 is clamped in the tooth blocks 206 under the action of elastic force of the spring 210.

When a patient is cleaned, one end of the connecting rod 208 connected with the spring 210 is pressed, so that the circular arc clamping block 209 on the connecting rod 208 is disengaged from the tooth block 206 on the turntable 105, then the turntable 105 is rotated to be communicated with the first through hole 110 and the second through hole 112, then the connecting rod 208 is released, and the circular arc clamping block 209 on the connecting rod 208 is engaged with the tooth block 206 on the turntable 105 again. The water supply device supplies physiological saline into the connection tube 113, a part of which washes diseased organs of a patient through the annular hole 111 and the central hole 108, and another part of which enters the third through hole 202 and then enters the first cavity 204 of the arc-shaped groove 201 through the third through hole 202. When the water pressure of the normal saline is too high, the high-pressure normal saline pushes the arc-shaped sliding block 203 to slide in the arc-shaped groove 201, so that the volume of the first cavity 204 is increased, and the volume of the second cavity 205 is reduced, so that the turntable 105 is driven to rotate relative to the mounting ring 106. Under the action of the elastic force of the spring 210, the circular arc-shaped clamping blocks 209 on the connecting rod 208 generate resistance to the rotation of the turntable 105, when the water pressure of the normal saline exceeds the safe water pressure, the water pressure drives the turntable 105 to rotate, and the tooth blocks 206 on the turntable 105 rotate relative to the circular arc-shaped clamping blocks 209 on the connecting rod 208, so that the spring 210 is extruded. The rotating turntable 105 drives the first through hole 110 on the turntable 105 to rotate relative to the second annular hole 111 on the mounting ring 106 until the first through hole 110 is disconnected from the second through hole 112, thereby blocking the supply of physiological saline. Furthermore, the washing water pressure that can be born by the patients of different ages and different physical conditions is different, and the water pressure of the physiological saline can be changed when the turntable 105 rotates by changing the springs 210 with different elastic coefficients, so that the use requirements of different patients can be met. This negative pressure drainage device can in time block the supply of normal saline when the water pressure of normal saline exceeds safe water pressure to when utilizing normal saline to wash patient's sick organ, prevent that the water pressure of normal saline from being too high from causing the injury to the patient.

Example 3:

on the basis of example 1, in order to be able to balance the amount of physiological saline flowing into the diseased organ of the patient and the amount of the extracted washing waste liquid, the pressure of physiological saline is prevented from causing secondary injury to the patient or injury to the patient when the negative pressure in the waste liquid tank 101 is empty when both are unbalanced.

As shown in fig. 1-3 and 5, the water supply device comprises an electromagnetic directional valve 301 and a water storage tank 302, wherein physiological saline is contained in the water storage tank 302, an air port a of the electromagnetic directional valve 301 is communicated with the atmosphere, an air port B of the electromagnetic directional valve 301 is communicated with the top end of the water storage tank 302, the bottom end of the water storage tank 302 is communicated with the connecting pipe 113, an air port P of the electromagnetic directional valve 301 is communicated with an air outlet of the air pump 102, an air inlet of the air pump 102 is communicated with the top end of the waste liquid cylinder 101, the top end of the waste liquid cylinder 101 is also communicated with the annular hole 111, the air pump 102 is electrically connected with a controller, and the controller is electrically connected with the electromagnetic directional valve 301, so that the communication between the air port P and the air port B of the electromagnetic directional valve 301 can be switched from the air port P to the communication between the air port P and the air port B.

When the diseased organ of the patient is drained, the rotary disc 105 is rotated to be communicated with the first grid hole 115 and the second grid hole 117, the air port P of the electromagnetic directional valve 301 is controlled by the controller to be communicated with the air port A, the air pump 102 is opened, the air pump 102 pumps air from the waste liquid cylinder 101, and the pumped air is discharged to the atmosphere. So that negative pressure is generated in the waste liquid cylinder 101, and the waste liquid cylinder 101 drains the effusion of the diseased organ of the patient cleanly through the annular hole 111, the central hole 108 and the pipe holes of the inner pipe 103. When the diseased organ of a patient is cleaned, the turntable 105 is rotated to be communicated with the first through hole 110 and the second through hole 112, the air port P of the electromagnetic directional valve 301 is controlled to be communicated with the air port B by the controller, at the moment, the air pump 102 pumps air from the waste liquid cylinder 101 through the directional valve, so that negative pressure is generated in the waste liquid cylinder 101, air pumped from the waste liquid cylinder 101 is discharged into the water storage tank 302 through the directional valve, physiological saline in the water storage tank 302 is extruded into the water storage tank 302, flows into the diseased organ of the patient through the connecting pipe 113, the first through hole 110, the second through hole 112 and gaps between the outer pipe 104 and the inner pipe 103, the diseased organ of the patient is cleaned, and the cleaned waste liquid enters the waste liquid cylinder 101. Through setting up electromagnetic directional valve 301 and water storage tank 302, can utilize an air pump 102 to realize simultaneously that drive normal saline washs patient's diseased organ to and the washing waste liquid in the diseased organ of extraction patient, thereby can balance the amount of normal saline that flows into patient's diseased organ and the amount of extraction washing waste liquid, thereby prevent when both imbalances, the water pressure of normal saline causes patient secondary injury or causes patient damage when the negative pressure suction in the waste liquid jar 101.

As a preferable solution, as shown in fig. 5, a negative pressure adjusting mechanism 4 is disposed between the waste liquid cylinder 101 and the ring hole 111, the ring hole 111 is communicated with the negative pressure adjusting mechanism 4, the negative pressure adjusting mechanism 4 is communicated with the top end of the waste liquid cylinder 101, and the negative pressure adjusting mechanism 4 is used for adjusting the negative pressure in the waste liquid cylinder 101. Through setting up negative pressure adjustment mechanism 4, can adjust the negative pressure in the waste liquid jar 101 to the patient's of adaptation different circumstances operation requirement, thereby when preventing that the negative pressure in the waste liquid jar 101 from being too big, lead to the suction of inner tube 103 too big to cause the injury to the patient.

As a preferable scheme, as shown in fig. 1-3, the top end of the outer tube is provided with a liquid pressure sensor 8, the liquid pressure sensor 8 is used for detecting a real-time liquid pressure value of effusion in a diseased organ, the liquid pressure sensor 8 is electrically connected with a controller, the controller is electrically connected with a color-changing lamp bead, a preset liquid pressure value interval is preset in the controller, the controller compares the real-time liquid pressure value with the preset liquid pressure value interval, when the real-time liquid pressure value is higher than the highest value of the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display red, when the real-time liquid pressure value is within the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display green, and when the real-time liquid pressure value is lower than the lowest value of the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display blue. The liquid pressure sensor 8, the controller and the color-changing lamp beads are arranged, the preset liquid pressure value interval is set according to the age and the physical condition of a patient, and the liquid pressure sensor 8 is used for detecting the real-time liquid pressure value of effusion in a diseased organ. When the patient's diseased organ is drained, the real-time liquid pressure value in the patient's diseased organ is larger just at the beginning, and at this time, the liquid pressure value is greater than the highest value in the predetermined liquid pressure value interval, and the color-changing lamp pearl shows red. Along with the continuous drainage of this device, the liquid pressure in the sick organ reduces, until real-time liquid pressure value is less than the minimum of predetermined liquid pressure value interval, at this moment, the color-changing lamp pearl shows the blue to indicate timely user's switch this device's mode, switch to carrying out water filling washing and drainage to the sick organ of patient, when avoiding the liquid pressure in the sick organ to be too low, sick organ inner wall loses liquid support and shrink to the drainage sleeve pipe of this device and the contact of sick organ inner wall of patient, thereby avoid drainage sleeve pipe's negative pressure suction to cause the damage to the tracheal inner wall mucosa of patient. In addition, when the diseased organ of the patient is subjected to water filling, cleaning and drainage, the liquid pressure in the diseased organ can be monitored in real time, and the diseased organ is further prevented from being injured due to overlarge liquid pressure in the diseased organ.

As a preferable solution, as shown in fig. 5, the waste liquid cylinder 101 is communicated with an air pressure sensor 5, the air pressure sensor 5 is electrically connected with the controller, the controller is electrically connected with a display, the air pressure sensor 5 is used for detecting a real-time air pressure value in the waste liquid cylinder 101, and the controller controls the display to display the real-time air pressure value. Through setting up air pressure sensor 5, utilize air pressure sensor 5 to detect the real-time atmospheric pressure value in the waste liquid jar 101 to show through controller control display, thereby make things convenient for medical personnel to monitor the real-time atmospheric pressure value in the waste liquid jar 101, and make things convenient for medical personnel to adjust the negative pressure value in the waste liquid jar 101, realize the accurate regulation and control to the negative pressure in the waste liquid jar 101, further prevent that the suction of inner tube 103 is too big from causing the injury to the patient.

As a preferable scheme, as shown in fig. 1-3, wherein, the edge of one end of the outer tube 104 far away from the turntable 105 is connected with a first ball head 601, the edge of one end of the inner tube 103 far away from the turntable 105 is connected with a second ball head 602, a filter screen 603 is arranged between the first ball head 601 and the second ball head 602, a plurality of fourth through holes 604 are arranged on the first ball head 601 and the second ball head 602, a plurality of uniformly distributed fifth through holes 605 are arranged on the side wall of one end of the outer tube 104 far away from the turntable 105, a sealing ring 606 is arranged in a gap between the outer tube 104 and the inner tube 103, and the sealing ring 606 is arranged between the fifth through holes 605 and the first ball head 601. Through setting up first bulb 601, second bulb 602 and filter screen 603, when wasing patient's sick organ, a plurality of fifth through-holes 605 of outer tube 104 lateral wall can disperse the normal saline of blowout to promote the cleaning performance of normal saline, utilize sealing ring 606 to separate the clearance between inner tube 103 and the outer tube 104 and the tube hole of inner tube 103, can prevent that normal saline from directly flowing back into waste liquid jar 101 through the jet current in, cause the utilization ratio of normal saline not high. The filter screen 603 is used for filtering the effusion and the waste liquid in the diseased organ of the patient, so that the inner tube 103 or other parts can be prevented from being blocked by solid foreign matters in the effusion or the waste liquid, and the normal operation of the device is ensured.

As a preferred solution, as shown in fig. 4, a layer of rubber pad 7 is provided on the side wall of the arc-shaped slider 203, and the rubber pad 7 is attached to the inner wall of the arc-shaped groove 201. Through setting up rubber pad 7, can promote the leakproofness of the first cavity 204 of arc recess 201 to prevent that normal saline from revealing into second cavity 205, lead to high pressure normal saline can not normally drive arc slider 203 motion, further prevent that the water pressure of normal saline from being too high from causing the injury to the patient.

As a preferred embodiment, as shown in fig. 6, the outer tube 104 is detachably connected to the turntable 105, and the inner tube 103 is detachably connected to the turntable 105. Through setting up outer tube 104 and carousel 105 to detachable connection, set up inner tube 103 and carousel 105 to detachable connection, can make things convenient for whole drainage sleeve's installation and dismantlement to make things convenient for the maintenance of this device.

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

Claims (9)

1. The utility model provides a hepatobiliary pancreas operation negative pressure drainage device, includes waste liquid jar (101) and air pump (102), and air pump (102) are connected with waste liquid jar (101), its characterized in that still includes:

the drainage sleeve comprises an inner tube (103) and an outer tube (104), wherein the inner tube (103) is arranged in the outer tube (104);

the switching mechanism comprises a rotary table (105), a mounting ring (106) and a casing (107), wherein the rotary table (105) is provided with a central hole (108) and an annular groove (109), one end of the central hole (108) is communicated with the inner pipe (103), a gap between the inner pipe (103) and the outer pipe (104) is communicated with the annular groove (109), a first through hole (110) is arranged at the bottom end of the annular groove (109), the rotary table (105) is in axial pivot connection with an annular hole (111) of the mounting ring (106), the mounting ring (106) is fixedly connected with the casing (107), a second through hole (112) is arranged on the mounting ring (106), the second through hole (112) is communicated with a water supply device, a first grid plate (114) is fixedly connected in the central hole (108), a first grid plate (115) is arranged on the first grid plate (114), a second grid plate (116) is fixedly connected in the annular hole (111), a second grid plate (117) is arranged on the second grid plate (116), the first grid plate (114) is attached to the second grid plate (116), and when the rotary table (105) is fixedly connected with the first grid plate (110) through hole (117), the annular ring (111) is in communication with the waste liquid tank (101).

2. The negative pressure drainage device for hepatobiliary and pancreatic surgery according to claim 1, wherein the turntable (105) is provided with an arc-shaped groove (201), the mounting ring (106) is provided with a third through hole (202) and an arc-shaped sliding block (203), the arc-shaped sliding block (203) is in sealing sliding connection with the arc-shaped groove (201), the arc-shaped sliding block (203) divides the arc-shaped groove (201) into a first cavity (204) and a second cavity (205), the first cavity (204) is communicated with the third through hole (202), a connecting pipe (113) is communicated between the second through hole (112) and the water supply device, the third through hole (202) is communicated with the connecting pipe (113), the outer edge of the turntable (105) is provided with a circle of tooth blocks (206), the casing (107) is provided with a support (207), the support (207) is hinged with a connecting rod (208), one end of the connecting rod (208) is provided with a circular arc-shaped clamping block (209), the other end of the connecting rod (208) is connected with a spring (210), and the spring (210) is used for applying the connecting rod (208) to the connecting rod (206) under the action of the elastic force of the circular arc-shaped clamping block (209).

3. The negative pressure drainage device for hepatobiliary and pancreas surgery according to claim 1, wherein the water supply device comprises an electromagnetic directional valve (301) and a water storage tank (302), physiological saline is contained in the water storage tank (302), an air port A of the electromagnetic directional valve (301) is communicated with the atmosphere, an air port B of the electromagnetic directional valve (301) is communicated with the top end of the water storage tank (302), the bottom end of the water storage tank (302) is communicated with the connecting pipe (113), an air port P of the electromagnetic directional valve (301) is communicated with an air outlet of the air pump (102), an air inlet of the air pump (102) is communicated with the top end of the waste liquid tank (101), the top end of the waste liquid tank (101) is also communicated with the annular ring (111), a controller is electrically connected to the air pump (102), and the controller is electrically connected with the electromagnetic directional valve (301) and can be switched from the air port P to the air port A to the air port P to the air port B.

4. A negative pressure drainage device for hepatobiliary pancreas surgery as claimed in claim 3, wherein a negative pressure regulating mechanism (4) is arranged between the waste liquid cylinder (101) and the annular hole (111), the annular hole (111) is communicated with the negative pressure regulating mechanism (4), the negative pressure regulating mechanism (4) is communicated with the top end of the waste liquid cylinder (101), and the negative pressure regulating mechanism (4) is used for regulating the negative pressure in the waste liquid cylinder (101).

5. The negative pressure drainage device for hepatobiliary pancreas surgery according to claim 1, wherein the top end of the outer tube is provided with a liquid pressure sensor (8), the liquid pressure sensor (8) is used for detecting a real-time liquid pressure value of effusion in a diseased organ, the liquid pressure sensor (8) is electrically connected with a controller, the controller is electrically connected with a color-changing lamp bead, a preset liquid pressure value interval is preset in the controller, the controller compares the real-time liquid pressure value with the preset liquid pressure value interval, when the real-time liquid pressure value is higher than the highest value of the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display red, when the real-time liquid pressure value is within the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display green, and when the real-time liquid pressure value is lower than the lowest value of the preset liquid pressure value interval, the controller controls the color-changing lamp bead to display blue.

6. The negative pressure drainage device for hepatobiliary and pancreas surgery according to claim 1, wherein the waste liquid cylinder (101) is communicated with a pneumatic sensor (5), the pneumatic sensor (5) is electrically connected with the controller, the controller is electrically connected with a display, the pneumatic sensor (5) is used for detecting a real-time pneumatic value in the waste liquid cylinder (101), and the controller controls the display to display the real-time pneumatic value.

7. The negative pressure drainage device for hepatobiliary and pancreas surgery according to claim 1, wherein the outer tube (104) is connected with a first ball head (601) at the edge of one end far away from the rotary table (105), the inner tube (103) is connected with a second ball head (602) at the edge of one end far away from the rotary table (105), a filter screen (603) is arranged between the first ball head (601) and the second ball head (602), a plurality of fourth through holes (604) are arranged on the first ball head (601) and the second ball head (602), a plurality of uniformly distributed fifth through holes (605) are arranged on the side wall of one end far away from the rotary table (105) of the outer tube (104), a sealing ring (606) is arranged in a gap between the outer tube (104) and the inner tube (103), and the sealing ring (606) is arranged between the fifth through holes (605) and the first ball head (601).

8. The negative pressure drainage device for hepatobiliary and pancreas surgery according to claim 1, wherein a layer of rubber pad (7) is arranged on the side wall of the arc-shaped sliding block (203), and the rubber pad (7) is attached to the inner wall of the arc-shaped groove (201).

9. The negative pressure drainage device for hepatobiliary and pancreas surgery according to claim 1, wherein the outer tube (104) is detachably connected to the turntable (105), and the inner tube (103) is detachably connected to the turntable (105).

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