CN113499498A

CN113499498A - Self-circulation flushing and sucking pump for joint cavity

Info

Publication number: CN113499498A
Application number: CN202110772643.8A
Authority: CN
Inventors: 唐正午; 江佩师
Original assignee: First Affiliated Hospital of University of South China
Current assignee: First Affiliated Hospital of University of South China
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-10-15

Abstract

The invention discloses a joint cavity self-circulation flushing and sucking pump, which relates to the technical field of medical equipment and comprises a silica gel base, wherein a peristaltic pump a, a filtering device, a variable volume constant-pressure device, a peristaltic pump b, two pulse suppression devices, a lithium battery and an integrated controller are sequentially and fixedly arranged at the top of the silica gel base, the peristaltic pump a, the filtering device, the variable volume constant-pressure device, the peristaltic pump b and the pulse suppression devices are connected through infusion pipelines, and the integrated controller is electrically connected with the peristaltic pump a, the peristaltic pump b and the lithium battery. According to the invention, the flushing liquid can be recycled after being reasonably filtered, so that the consumption of the flushing liquid is reduced, medical resources are saved, no pollution exists, and the environment-friendly degree is high; the device is small, can charge, possesses flexible silica gel base, requires lowly to placing the environment, not only can be used to the washing and suction of joint operation, can also be used to ward patient's joint lavage.

Description

Self-circulation flushing and sucking pump for joint cavity

Technical Field

The invention relates to the technical field of medical equipment, in particular to a joint cavity self-circulation suction pump.

Background

Minimally invasive joint surgery is currently widely used in the treatment of various joint diseases. The minimally invasive joint surgery has the characteristics of small wound, quick recovery, good surgery effect and the like. In all of these operations, an endoscope is used to observe the conditions in the joint, and in order to ensure a good visual field, air or liquid must be used to fill the open joint cavity, and when blood seeps into the joint and debris generated by the operation blocks the visual field, the liquid in the joint is sucked out and simultaneously new isotonic liquid is injected.

At present, lavage liquid is mostly used to suspend a high place and is used to provide pressure difference or a joint perfusion pump to make the lavage liquid to be flushed into a joint cavity so as to provide a required visual field, and a negative pressure suction device is used to suck waste liquid in the joint, but the two methods have the following defects:

1. a large amount of flushing fluid is needed in each operation, which causes waste of medical resources.

2. A large amount of flushing waste liquid can not be completely sucked by the sheath clamp under negative pressure and directly flows out of the operation hole, cloth dressing is easy to soak, an operation table is easy to be polluted, and infection or cross infection is easy to cause.

3. Both methods require frequent replacement of the lavage fluid, which affects the smoothness of the surgery.

4. Both devices have irrigation liquid pipelines and suction pipelines which simultaneously cross over a sterile area and a non-sterile area, so that the risk of pollution of an operation area is increased.

5. The traditional joint perfusion pump needs to be placed in a non-sterile area, which brings inconvenience to the operation of an operator.

To this end, we propose a joint cavity self-circulating suction pump to solve the above problems.

Disclosure of Invention

The invention provides a joint cavity self-circulation flushing and sucking pump, which solves the technical problems in the background technology.

In order to solve the technical problems, the joint cavity self-circulation suction pump provided by the invention comprises a silica gel base, wherein a peristaltic pump a, a filtering device, a variable volume constant voltage device, a peristaltic pump b, two pulse suppression devices, a lithium battery and an integrated controller are sequentially and fixedly arranged at the top of the silica gel base, the peristaltic pump a, the filtering device, the variable volume constant voltage device, the peristaltic pump b and the pulse suppression devices are connected through infusion pipelines, and the integrated controller is electrically connected with the peristaltic pump a, the peristaltic pump b and the lithium battery, wherein:

the filter device comprises a sealed container arranged at the top of a silica gel base, a chip filter screen, a cell filter screen and a semi-permeable membrane filter screen are sequentially arranged in the sealed container from top to bottom, the sealed container is sequentially divided into a chip bin, a cell bin and a large biomolecule bin by the chip filter screen, the cell filter screen and the semi-permeable membrane filter screen, three discharge pipes corresponding to the chip bin, the cell bin and the large biomolecule bin are arranged on the outer side wall of the sealed container, and a control valve a is arranged on each discharge pipe;

the variable-volume constant-pressure device is a rubber container with a contractible volume;

the pulse suppression device comprises a shell arranged on a silica gel base, a fixed pipeline is arranged in the shell, two ends of the fixed pipeline penetrate through the shell and extend outwards, a rubber buffer bag is arranged on the fixed pipeline, and the rubber buffer bag is positioned in the shell;

and a washing pipe and a suction pipe are respectively arranged at one end of each of the two fixed pipelines, a plurality of through holes are respectively formed in one end of the washing pipe, which is far away from the fixed pipelines, and one end of the suction pipe, which is far away from the fixed pipelines, and the inner diameter of one end of the washing pipe, which is far away from the fixed pipelines, is gradually increased.

Preferably, the silica gel base is made of a low Young modulus material and is easy to bend.

Preferably, the liquid inlet end of the sealed container is positioned on the top outer side wall of the sealed container, and the liquid outlet end of the sealed container is positioned on the bottom outer side wall of the sealed container.

Preferably, the outer side wall of the washing pipe is connected with the outer side wall of the suction pipe through an angle adjusting device.

Preferably, angle adjusting device is including the fixed gasbag that is the quadrangular frustum pyramid type setting, the wash pipe passes through the gasbag and is connected with the straw, the one end lateral wall of gasbag is connected with the sealed solid fixed cylinder of one end through the trachea, the rubber buffer is installed to the open end inside wall of solid fixed cylinder.

Preferably, the top of the variable-volume constant-pressure device is provided with a vent pipe, and the vent pipe is provided with a control valve b.

Preferably, the infusion pipeline, the flushing pipe and the suction pipe are connected with the top of the silica gel base through fixing buckles.

Preferably, peristaltic pump a, seal container, variable volume constant voltage device, peristaltic pump b and casing all are connected with the silica gel base through the rubber sleeve, the rubber sleeve cup joints on the lateral wall of peristaltic pump a, seal container, variable volume constant voltage device, peristaltic pump b and casing.

Preferably, the rubber sleeve is made of high Young modulus rubber.

Preferably, the wash pipe is connected with the suction pipe through a fixing device.

Preferably, the fixing device comprises a sucker, the sucker is hermetically sleeved on the outer side wall where the washing pipe and the suction pipe are connected, the sucker is provided with an exhaust valve, and the inner bottom of the sucker is provided with two water blocking rings.

Preferably, the water blocking ring divides the inside of the sucker into a water containing area, a water isolating area and a negative pressure area.

Preferably, the top of sucking disc installs the installation head sucking disc sticker, the sucking disc sticker is the setting of C style of calligraphy, the maximum diameter of sucking disc sticker is greater than the maximum diameter of sucking disc, be provided with the mounting hole that corresponds with the exhaust-off valve on the sucking disc sticker.

Preferably, the sucker sticker is a waterproof sticker.

Compared with the related art, the joint cavity self-circulation flushing and sucking pump provided by the invention has the following beneficial effects:

1. the invention provides a joint cavity self-circulation flushing and sucking pump which is small in size, can be charged, has a bendable silica gel base, has low requirements on a placement environment, and can be used for flushing and sucking joint operations and joint lavage of patients in wards.

2. The invention provides a joint cavity self-circulation flushing and sucking pump which can be used for recycling flushing liquid after reasonably filtering, reduces the consumption of the flushing liquid, saves medical resources, has no pollution and is high in environmental protection degree.

3. The invention provides a joint cavity self-circulation flushing and sucking pump, which adopts the matching of a negative pressure suction cup and waterproof adhesive paper, and reduces the risks of infection or cross infection caused by the fact that a washing liquid soaks cloth dressing, pollutes an operating table.

3. The invention provides a joint cavity self-circulation irrigation and suction pump, which can recycle lavage fluid without frequently replacing the lavage fluid in joint minimally invasive surgery, thereby ensuring the smoothness of the surgery.

4. The invention provides a joint cavity self-circulation flushing and sucking pump which can be completely arranged on an operating table, so that the phenomenon that a traditional device is used for simultaneously crossing a sterile area and a non-sterile area through a flushing liquid pipeline and a sucking pipeline is avoided, and the risk of pollution of the operating area is reduced.

5. The invention provides a joint cavity self-circulation suction pump, which can be directly operated in a sterile area by an operator without requiring the help of a circulating nurse, thereby increasing the smoothness of the operation.

6. The invention provides a joint cavity self-circulation flushing and sucking pump, which is provided with a debris bin, a cell bin and a biological macromolecule bin, can conveniently carry out disease detection on debris, has the function of enriching cells and biological macromolecules, extracts liquid in the cell bin and the biological macromolecule bin after joint lavage for related detection, and has higher sensitivity compared with that of directly carrying out joint fluid detection.

Drawings

FIG. 1 is a schematic structural view of a joint cavity self-circulation suction pump;

FIG. 2 is a schematic view of a connection structure of a filtering device and a liquid conveying pipeline in a joint cavity self-circulation suction pump;

FIG. 3 is a schematic structural diagram of a pulse suppression device in a joint cavity self-circulation suction pump;

FIG. 4 is a schematic structural diagram of an air bag in a joint cavity self-circulation suction pump;

FIG. 5 is a schematic view of a connection structure of a middle air tube, a fixed barrel and a rubber plug of a joint cavity self-circulation suction pump;

FIG. 6 is a schematic structural view of a fixing device in the self-circulation suction pump of the joint cavity;

fig. 7 is a schematic view of a connection structure of a sucker sticker and a mounting hole in a joint cavity self-circulation suction pump.

Reference numbers in the figures: 1. a silica gel base; 2. a peristaltic pump a; 3. a filtration device; 31. a debris screen; 32. a cell strainer; 33. a semi-permeable membrane filter screen; 34. a discharge pipe; 35. a control valve a; 36. sealing the container; 4. a variable volume constant voltage device; 5. a peristaltic pump b; 6. a pulse suppression device; 61. a housing; 62. fixing the pipeline; 63. a rubber cushion bladder; 7. a lithium battery; 8. an integrated controller; 9. washing the pipe; 10. a straw; 11. a through hole; 12. an angle adjusting device; 121. an air bag; 122. an air tube; 123. a fixed cylinder; 124. a rubber plug; 13. fixing the buckle; 14. a fixing device; 141. a suction cup; 142. a water-blocking ring; 143. an evacuation valve; 144. sticking paper with a sucker; 145. mounting holes; 15. a fluid delivery conduit; 16. a rubber sleeve; 17. a breather pipe; 18. and (c) a control valve b.

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.

Example one

The joint cavity self-circulation flushing and sucking pump is provided by figures 1-5, and comprises a silica gel base 1, wherein a peristaltic pump a2, a filtering device 3, a variable volume constant voltage device 4, a peristaltic pump b5, two pulse suppression devices 6, a lithium battery 7 and an integrated controller 8 are sequentially and fixedly arranged at the top of the silica gel base 1, the peristaltic pump a2, the filtering device 3, the variable volume constant voltage device 4, the peristaltic pump b5 and the pulse suppression devices 6 are connected through a liquid conveying pipeline 15, the integrated controller 8 is electrically connected with the peristaltic pump a2, the peristaltic pump b5 and the lithium battery 7, wherein:

the filtering device 3 comprises a sealing container 36 installed at the top of the silica gel base 1, a chip filter screen 31, a cell filter screen 32 and a semi-permeable membrane filter screen 33 are sequentially installed in the sealing container 36 from top to bottom, the chip filter screen 31, the cell filter screen 32 and the semi-permeable membrane filter screen 33 divide the sealing container 36 into a chip bin, a cell bin and a large biomolecule bin in sequence, three discharging pipes 34 corresponding to the chip bin, the cell bin and the large biomolecule bin are arranged on the outer side wall of the sealing container 36, and a control valve a35 is installed on the discharging pipes 34.

The top of the volume-variable constant pressure device 4 is provided with a vent pipe 17, and the vent pipe 17 is provided with a control valve b 18.

The volume-variable constant-pressure device 4 is a rubber container with a contractible volume. The variable volume constant pressure device 4 is used for storing liquid, buffer solution is injected from the vent pipe 17 before use, air in the infusion pipeline 15 is exhausted, when the variable volume constant pressure device 4 reaches the maximum constant pressure limit, the control valve b18 is opened, part of the buffer solution is discharged to reduce the pressure, and antibiotics can be injected into the liquid injection port for joint lavage. The variable volume constant pressure device 4 is similar to a foot-operated air pump in shape and can be extended and contracted in height.

The pulse suppression device 6 comprises a shell 61 arranged on the silica gel base 1, a fixed pipeline 62 is arranged in the shell 61, two ends of the fixed pipeline 62 penetrate through the shell 61 and extend outwards, a rubber buffer bag 63 is arranged on the fixed pipeline 62, and the rubber buffer bag 63 is positioned in the shell 61;

the wash pipe 9 and the suction pipe 10 are respectively installed at one end of the two fixed pipelines 62, a plurality of through holes 11 are formed in one end, away from the fixed pipeline 62, of the wash pipe 9 and one end, away from the fixed pipeline 62, of the suction pipe 10, and the inner diameter of one end, away from the fixed pipeline 62, of the wash pipe 9 is gradually increased.

Debris screen 31 is used for filtering meniscus, synovium and articular cartilage debris and keeps the piece that filters in the piece storehouse to carry out the pathological examination to the free body of joint.

The cell strainer 32 is used to filter free human cells that bacteria cannot pass through.

The size of the pores of the semi-permeable membrane filter 33 is larger than that of ions and small molecules, and biological macromolecules such as protein, starch and the like cannot pass through.

The liquid in the cell compartment is more dense with bacteria than the synovial fluid taken directly.

The biological macromolecule storehouse is used for storing liquid, and the liquid in the storehouse can be used for detecting special molecules such as tumor markers and rheumatoid factors.

The function of the drain tube 34 and the control valve a35 is to facilitate the removal of debris in the debris compartment, liquid in the cell compartment and liquid in the biomolecule compartment.

The lithium battery 7 can be charged in order to supply power to the integrated controller 8, the peristaltic pump a2 and the peristaltic pump b5, and the connection circuit of the lithium battery 7 is waterproof.

The integrated controller 8 functions to control the operating states and rotational speeds of the peristaltic pump a2 and the peristaltic pump b 5.

The pulse suppression device 6 is used for suppressing the flow rate of lavage liquid entering a joint cavity, simulating the aorta and the aorta of human beings (which can buffer the amplitude of blood pressure fluctuation, namely preventing over-high systolic pressure and over-low diastolic pressure, so that the pulse pressure difference is reduced, and when the old people go, elastic fibers in the wall of the artery are denatured, the expansibility of the artery is reduced, the function of an elastic reservoir is weakened, so that the pulse pressure is increased), playing the function of the elastic pressure reservoir, and being a pipeline made of elastic materials, converting the kinetic energy of liquid during pulse into the potential energy of the elastic tube to reduce the flow rate, and releasing the potential energy intermittently during pulse to compensate the liquid flow rate intermittently, thereby stabilizing the flow rate of liquid extruded by a peristaltic pump. Two pulse suppression devices 6 are arranged, wherein one pulse suppression device is arranged at the input end of the peristaltic pump a2, and the other pulse suppression device is arranged at the discharge end of the peristaltic pump b5, so that the peak flow rate of liquid in the joint cavity can be reduced, and damage to tissues in the joint due to overhigh flow rate can be avoided.

The liquid inlet end of the sealed container 36 is located on the top outer side wall of the sealed container 36, and the liquid outlet end of the sealed container 36 is located on the bottom outer side wall of the sealed container 36. The liquid inlet end is positioned higher than the liquid outlet end in order to make the sealed container 36 have the function of anti-reflux.

The infusion pipeline 15, the wash pipe 9 and the suction pipe 10 are all connected with the top of the silica gel base 1 through a fixing buckle 13.

Peristaltic pump a2, sealed container 36, variable volume constant voltage device 4, peristaltic pump b5 and casing 61 are all connected with silica gel base 1 through rubber sleeve 16, and rubber sleeve 16 cup joints on the lateral wall of peristaltic pump a2, sealed container 36, variable volume constant voltage device 4, peristaltic pump b5 and casing 61.

Some spare parts are changed to the convenience, and the installation is dismantled simply, and stability is good.

Example two

On the basis of the first embodiment, the outer side wall of the wash pipe 9 is connected with the outer side wall of the suction pipe 10 through the angle adjusting device 12.

The angle adjusting device 12 comprises an air bag 121 which is fixedly arranged in a quadrangular frustum pyramid shape, the washing pipe 9 is connected with the suction pipe 10 through the air bag 121, one end side wall of the air bag 121 is connected with a fixed cylinder 123 with one sealed end through an air pipe 122, and a rubber plug 124 is installed on the inner side wall of the opening end of the fixed cylinder 123.

The angle adjusting device 12 is used for increasing the included angle between the washing tube 9 and the suction tube 10 by the air bag 121 through filling air into the air bag 121, so that the lavage liquid flushed out by the washing tube 9 flows in the joint cavity and is sucked into the filtering device 3 by the suction tube 10 for filtering.

EXAMPLE III

Referring to fig. 6-7, in the first and second embodiments, the wash pipe 9 is connected to the suction pipe 10 by a fixing device 14.

The fixing device 14 comprises a suction cup 141, the suction cup 141 is hermetically sealed on the outer side wall connected with the wash pipe 9 and the suction pipe 10, an exhaust valve 143 is installed on the suction cup 141, and two water blocking rings 142 are installed at the inner bottom of the suction cup 141.

The two water blocking rings 142 can prevent the lavage fluid overflowing from the wound from entering the negative pressure area, and the stability of the suction cup 141 on the wound of the patient is prevented from being influenced.

The top of the suction cup 141 is provided with a suction cup paster 144, the suction cup paster 144 is arranged in a C shape, the maximum diameter of the suction cup paster 144 is larger than that of the suction cup 141, and the suction cup paster 144 is provided with a mounting hole 145 corresponding to the emptying valve 143.

The wash pipe 9 and the suction pipe 10 are connected with the suction cup 141 through the connecting buckle 142, the suction cup 141 and the skin of the patient are used for generating negative pressure, the suction cup 141 is fixed on the skin of the patient, the negative pressure suction area is on the normal skin, the phenomenon that the content of the wound seeps out to damage the negative pressure to generate suction force is avoided, and the exhaust valve 143 is installed on the suction cup 141, so that the absolute value of the negative pressure can be conveniently adjusted according to needs.

The sucker sticker 144 is adhered to the sucker 141 to prevent the sucker 141 from wetting the liquid, which would affect the stability of the sucker 141 on the skin of the patient.

The working principle is as follows:

when the joint minimally invasive surgery needs to be carried out on a patient, the joint cavity of the patient is washed by the joint cavity self-circulation flushing and sucking pump, lavage liquid sequentially enters one of the pulse suppression devices 6 through the suction pipe 10, the peristaltic pump a2, the filtering device 3, the variable volume constant-pressure device 4, the peristaltic pump b5 and the other pulse suppression device 6, and finally the lavage liquid is flushed into the joint cavity through the flushing pipe 9, the device can be used for recycling the lavage liquid after reasonable filtering, the consumption of the lavage liquid is reduced, medical resources are saved, pollution is avoided, the environmental protection degree is high, in addition, the device is small in size, charging can be carried out, the bendable silica gel base 1 is provided, the requirement on the placement environment is low, the device not only can be used for flushing and sucking of the joint surgery, but also can be used for lavage of patients in wards.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.

Claims

1. The utility model provides a joint chamber self-loopa suction pump, includes silica gel base (1), its characterized in that: the top of silica gel base (1) is fixed in proper order and is provided with peristaltic pump a (2), filter equipment (3), varactor volume constant voltage device (4), peristaltic pump b (5), two pulse suppression device (6), lithium cell (7) and integrated control ware (8), be connected through infusion pipeline (15) between peristaltic pump a (2), filter equipment (3), varactor volume constant voltage device (4), peristaltic pump b (5) and the pulse suppression device (6), the electricity is connected between integrated control ware (8) and peristaltic pump a (2), peristaltic pump b (5) and lithium cell (7), wherein:

the filter device (3) comprises a sealing container (36) arranged at the top of the silica gel base (1), a chip filter screen (31), a cell filter screen (32) and a semi-permeable membrane filter screen (33) are sequentially arranged in the sealing container (36) from top to bottom, the chip filter screen (31), the cell filter screen (32) and the semi-permeable membrane filter screen (33) sequentially divide the sealing container (36) into a chip bin, a cell bin and a large biomolecule bin, three discharge pipes (34) corresponding to the chip bin, the cell bin and the large biomolecule bin are arranged on the outer side wall of the sealing container (36), and a control valve a (34) is arranged on each discharge pipe (35);

the variable-volume constant-pressure device (4) is a rubber container with a contractible volume;

the pulse suppression device (6) comprises a shell (61) arranged on a silica gel base (1), a fixed pipeline (62) is arranged in the shell (61), two ends of the fixed pipeline (62) penetrate through the shell (61) and extend outwards, a rubber buffer bag (63) is arranged on the fixed pipeline (62), and the rubber buffer bag (63) is positioned in the shell (61);

wash pipe (9) and straw (10) are installed respectively to the one end of two fixed pipeline (62), the one end that fixed pipeline (62) were kept away from in wash pipe (9) and the one end that fixed pipeline (62) were kept away from in straw (10) all are provided with a plurality of through holes (11), the one end internal diameter that fixed pipeline (62) were kept away from in wash pipe (9) increases progressively gradually.

2. The self-circulating sap pump of claim 1, wherein the inlet end of the sealed container (36) is located on the top outer sidewall of the sealed container (36), and the outlet end of the sealed container (36) is located on the bottom outer sidewall of the sealed container (36).

3. A self-circulating sap pump according to claim 1, characterised in that the outer side wall of the wash pipe (9) is connected to the outer side wall of the suction pipe (10) by means of an angle adjustment device (12).

4. The joint cavity self-circulation flushing and sucking pump as claimed in claim 3, wherein the angle adjusting device (12) comprises a fixed air bag (121) which is in a quadrangular frustum pyramid shape, the flushing pipe (9) is connected with the suction pipe (10) through the air bag (121), one end side wall of the air bag (121) is connected with a fixed cylinder (123) with one sealed end through an air pipe (122), and a rubber plug (124) is installed on the inner side wall of the opening end of the fixed cylinder (123).

5. The articular cavity self-circulation suction and flush pump according to claim 1, characterized in that the top of the variable volume constant pressure device (4) is provided with a vent pipe (17), and the vent pipe (17) is provided with a control valve b (18).

6. The articular cavity self-circulation flushing and sucking pump of claim 1, characterized in that the infusion tube (15), the flushing tube (9) and the suction tube (10) are connected with the top of the silica gel base (1) through a fixing buckle (13).

7. The joint cavity self-circulation impact suction pump according to claim 1, wherein the peristaltic pump a (2), the sealed container (36), the variable volume constant pressure device (4), the peristaltic pump b (5) and the shell (61) are all connected with the silica gel base (1) through a rubber sleeve (16), and the rubber sleeve (16) is sleeved on the outer side walls of the peristaltic pump a (2), the sealed container (36), the variable volume constant pressure device (4), the peristaltic pump b (5) and the shell (61).

8. A joint cavity self-circulating suction pump according to claim 1, characterized in that the flushing pipe (9) is connected to the suction pipe (10) by means of a fixing device (14).

9. The articular cavity self-circulation suction pump according to claim 8, wherein the fixing device (14) comprises a suction cup (141), the suction cup (141) is sleeved on the outer side wall of the connection between the wash pipe (9) and the suction pipe (10) in a sealing way, the suction cup (141) is provided with an emptying valve (143), and the inner bottom of the suction cup (141) is provided with two water blocking rings (142).

10. The self-circulation suction pump of joint cavity according to claim 9, wherein the top of the suction cup (141) is installed with a suction cup sticker (144), the suction cup sticker (144) is arranged in a C shape, the maximum diameter of the suction cup sticker (144) is larger than the maximum diameter of the suction cup (141), and the suction cup sticker (144) is provided with an installation hole (145) corresponding to the evacuation valve (143).