CN114306778B - Negative pressure suction device for diabetic foot wound - Google Patents
Negative pressure suction device for diabetic foot wound Download PDFInfo
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- CN114306778B CN114306778B CN202210161652.8A CN202210161652A CN114306778B CN 114306778 B CN114306778 B CN 114306778B CN 202210161652 A CN202210161652 A CN 202210161652A CN 114306778 B CN114306778 B CN 114306778B
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- 208000008960 Diabetic foot Diseases 0.000 title claims abstract description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 33
- 208000027418 Wounds and injury Diseases 0.000 claims abstract description 23
- 206010052428 Wound Diseases 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 76
- 239000002699 waste material Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 206010012601 diabetes mellitus Diseases 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 230000001954 sterilising effect Effects 0.000 description 7
- 244000052616 bacterial pathogen Species 0.000 description 5
- 239000010808 liquid waste Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000004332 deodorization Methods 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a negative pressure suction device for a diabetic foot wound, which comprises a machine body, wherein an inner assembly groove and an outer assembly groove are respectively arranged on the inner side wall and the outer side wall of the machine body, a control valve and a suction valve are respectively inserted and arranged on the inner assembly groove and the outer assembly groove, a negative pressure main pipe, a negative pressure suction pipe, an exhaust pipe and an air outlet pipe are respectively inserted and arranged on the control valve, a control pipe is inserted and arranged on the negative pressure main pipe, and one end of the control pipe, which is far away from the negative pressure main pipe, is inserted and arranged on one end of the control valve, which is far away from the inner assembly groove. The invention reduces the probability of mutual pollution through a multifunctional separation type design, and makes the cleaning and the disinfection more convenient, reduces the germ pollution area, namely reduces the cleaning and the disinfection area by adopting an isolation control design, reduces the operation amount, increases the safety of treatment through the pus sealing treatment and the disinfection and the filtration of the pus mixed gas, and reduces the probability of secondary damage to wounds by the suction operation through a pulse suction mode.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a negative pressure suction device for a diabetic foot wound.
Background
The existing negative pressure suction device is usually provided with a suction tube and a negative pressure tube structure on a pus collecting bottle, the suction tube is connected with a suction head, the negative pressure tube is connected with a negative pressure pump, the suction head sucks pus into the pus collecting bottle through negative pressure, but when the negative pressure suction device is used, the continuous negative pressure suction can lead to secondary damage to wounds, the negative pressure pump is directly connected with the pus collecting bottle, germs and stink in pus are sucked and discharged, medical staff are easy to infect, and when the device is cleaned and disinfected, the whole device is required to be cleaned and disinfected, and the disinfection area is large and the disinfection workload is large.
Disclosure of Invention
The invention aims to solve the defects that continuous negative pressure suction is easy to cause secondary injury of wounds, direct suction is easy to cause discharge of germs and malodorous gases, safety is not enough, and disinfection workload is large due to a large disinfection area in the prior art, and provides a negative pressure suction device for diabetic foot wounds.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a diabetes foot wound negative pressure suction device, includes the organism, be equipped with interior assembly groove and outer assembly groove on the inside and outside wall of organism respectively, install control valve and suction valve on interior assembly groove and the outer assembly groove of inserting respectively, insert respectively on the control valve and be equipped with negative pressure person in charge, negative pressure suction pipe, blast pipe and outlet duct, the last control pipe that inserts of negative pressure person in charge, the one end that the control pipe kept away from the negative pressure person in charge inserts and establishes on the one end that the control valve kept away from interior assembly groove, the one end that control valve was kept away from to negative pressure person in charge and outlet duct all extends to the outside of organism, insert respectively on the suction valve and be equipped with suction pipe and drain pipe, install the mount on the lateral wall of organism, the card is equipped with the waste liquid bottle on the mount, insert respectively on the waste liquid bottle and be equipped with catheter and air duct, first joint and second joint are installed respectively to the one end that waste liquid bottle was kept away from to the guide pipe, the internal diameter of first joint equals the external diameter of second joint, first joint installs on the drain pipe, the bottom magnetism of organism adsorbs and installs the liquid cartridge, suction pipe and drain pipe, the one end that control valve was kept away from to the top wall of organism is equipped with the one side of the two side of the side wall of the air duct and extends to the one-way seal membrane, the top is equipped with the top seal and two side of the top wall of the air duct.
Preferably, the control valve is internally provided with a negative pressure cavity, an exhaust cavity and a control cavity in sequence, a first control rod is inserted on the side wall between the negative pressure cavity and the exhaust cavity in a sliding way, two ends of the first control rod respectively extend into the negative pressure cavity and the exhaust cavity and are respectively provided with a negative pressure core column and an exhaust core column, and one end, far away from the first control rod, of the negative pressure core column is provided with a first reset spring fixed on the side wall of the negative pressure cavity.
Preferably, a second control rod is inserted on the side wall between the exhaust cavity and the control cavity in a sliding manner, one end of the second control rod, which is far away from the control cavity, extends into the exhaust cavity and is fixed on the exhaust core column, and one end of the second control rod, which is far away from the exhaust cavity, extends into the control cavity and is provided with the first magnetic column.
Preferably, the exhaust pipe and the air outlet pipe are uniformly communicated with the exhaust cavity, the exhaust stem is far away from the joint of the exhaust pipe and the air outlet pipe as well as the control valve, the negative pressure main pipe and the negative pressure suction pipe are communicated with the negative pressure cavity, the negative pressure stem blocks the joint of the negative pressure main pipe and the negative pressure suction pipe as well as the control valve, the control pipe is communicated with the negative pressure cavity, and the control pipe is positioned on one side of the negative pressure cavity far away from the negative pressure stem.
Preferably, the suction valve is respectively provided with a suction cavity and a sensing cavity, a third control rod is inserted on the side wall between the suction cavity and the sensing cavity in a sliding way, two ends of the third control rod respectively extend into the suction cavity and the sensing cavity and respectively are provided with a suction core column and a second magnetic column, one section of the third control rod positioned in the suction cavity is sleeved with a second reset spring, two ends of the second reset spring are respectively fixed on the suction core column and the inner wall of the suction cavity, and the second magnetic column and the first magnetic column are mutually attracted.
Preferably, the liquid suction pipe and the liquid discharge pipe are both communicated with the suction cavity, a cleaning hole communicated with the suction cavity is formed in the side wall of one end of the suction valve, and a threaded cover is arranged in the cleaning hole in a sealing mode.
The invention has the beneficial effects that: through multi-functional disconnect-type design, reduce the probability of mutual pollution, and make cleaning and disinfecting more convenient, through adopting isolation control design, reduce germ pollution area, reduce cleaning and disinfecting area promptly, reduce the operation volume, and through the sealed processing of pus and the mixed gas disinfection filtration of pus, increase the security of handling, and reduce the probability of attracting operation to wound secondary damage through the mode of pulse attraction.
Drawings
FIG. 1 is a schematic diagram of a negative pressure suction device for diabetic foot wounds;
FIG. 2 is an enlarged view of a control valve portion of a negative pressure suction device for diabetic foot according to the present invention;
FIG. 3 is an enlarged view of a suction valve portion of a negative pressure suction device for diabetic foot according to the present invention;
FIG. 4 is an enlarged view of a portion of a liquid sterilization case of a negative pressure suction device for a diabetic foot according to the present invention;
fig. 5 is an enlarged view of a waste liquid bottle part of the negative pressure suction device for diabetic foot wound according to the present invention.
In the figure: 1 machine body, 11 inner assembly groove, 12 outer assembly groove, 13 fixing frame, 2 control valve, 21 negative pressure main pipe, 22 control pipe, 23 negative pressure suction pipe, 24 exhaust pipe, 25 air outlet pipe, 26 negative pressure cavity, 27 exhaust cavity, 28 control cavity, 3 suction valve, 31 liquid suction pipe, 32 liquid discharge pipe, 33 suction cavity, 34 induction cavity, 35 cleaning hole, 36 screw cap, 4 waste liquid bottle, 41 liquid guide pipe, 42 first joint, 43 air guide pipe, 44 second joint, 5 liquid sterilizing box, 51 one-way air pipe, 52 jack, 53 elastic membrane, 6 first control rod, 61 negative pressure core column, 62 exhaust core column, 63 first return spring, 7 second control rod, 71 first magnetic column, 8 third control rod, 81 second magnetic column, 82 suction core column, 83 second return spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-5, a negative pressure suction device for diabetic foot wound comprises a machine body 1, wherein an inner assembly groove 11 and an outer assembly groove 12 are respectively arranged on the inner side wall and the outer side wall of the machine body 1, a control valve 2 and a suction valve 3 are respectively inserted and installed on the inner assembly groove 11 and the outer assembly groove 12, a negative pressure main pipe 21, a negative pressure suction pipe 23, an exhaust pipe 24 and an air outlet pipe 25 are respectively inserted and installed on the control valve 2, a control pipe 22 is inserted and installed on the negative pressure main pipe 21, one end of the control pipe 22, which is far away from the negative pressure main pipe 21, is inserted and installed on one end of the control valve 2, which is far away from the inner assembly groove 11, the negative pressure main pipe 21 and the air outlet pipe 25 are respectively extended to the outer side of the machine body 1, a liquid suction pipe 31 and a liquid outlet pipe 32 are respectively inserted and installed on the outer side wall of the machine body 1, a waste liquid bottle 4 is blocked and installed on the fixing frame 13, the liquid guide tube 41 and the air guide tube 43 are respectively inserted on the liquid waste bottle 4, a first joint 42 and a second joint 44 are respectively installed at one ends of the liquid guide tube 41 and the air guide tube 43 far away from the liquid waste bottle 4, the inner diameter of the first joint 42 is equal to the outer diameter of the second joint 44, the first joint 42 is installed on the liquid discharge tube 32, the liquid disinfection box 5 is installed on the bottom magnetic adsorption of the machine body 1, a one-way air tube 51 is inserted below the side wall of the liquid disinfection box 5, the second joint 44 is installed on the one-way air tube 51, two insertion holes 52 are formed in the top of the liquid disinfection box 5, one ends of the negative pressure suction tube 23 and the exhaust tube 24 far away from the control valve 2 extend to the lower side of the machine body 1 and are respectively inserted in the two insertion holes 52 in a sealing mode, an elastic membrane 53 is installed on the inner top wall of the liquid disinfection box 5 in a sealing mode, and the elastic membrane 53 covers the insertion holes 52 into which the negative pressure suction tube 23 is inserted.
The negative pressure main pipe 21 is externally connected with a pulse negative pressure pump to provide intermittent negative pressure suction, and intermittent negative pressure is formed in the liquid disinfection box 5 through the negative pressure suction pipe 23, so that the elastic membrane 53 continuously contracts and rebounds, the pressure in the liquid disinfection box 5 continuously decreases and recovers to be alternately changed, the liquid disinfection box 5 generates intermittent suction through the one-way air pipe 51, the intermittent suction is generated in the waste liquid bottle 4 through the second connector 44 and the air duct 43, the intermittent suction is generated in the liquid discharge pipe 32 through the liquid duct 41 and the first connector 42, the liquid suction pipe 31 is connected with an external suction head to realize intermittent suction of wound pus, and pain of a patient caused by continuous negative pressure suction and secondary damage to a wound caused by continuous negative pressure suction are avoided;
the suction valve 3 is arranged on the outer side of the machine body 1, so that the disassembly, the cleaning and the disinfection are convenient, the control valve 2 is arranged in the machine body 1 and is isolated from the suction valve 3, germs are prevented from entering, the sterilization is not needed, the sterilization difficulty is reduced, the waste liquid bottle 4 is a disposable product, after the pus suction is finished, the first connector 42 is sleeved on the outer side of the second connector 44 to be tightly pressed, the waste liquid bottle 4 is sealed, the outside or odor overflow caused by the pus germs is avoided, and the treatment is convenient;
the disinfection and deodorization liquid is filled in the liquid disinfection box 5, and in the negative pressure adsorption process, the foul gas of the pus in the mixed waste liquid bottle 4 enters the liquid disinfection box 5 from the one-way air pipe 51 to be disinfected and deodorized, so that the gas is prevented from being filled with germs and the foul smell emitted by the gas, and the purified gas can be discharged to the outside from the exhaust pipe 24 and the air outlet pipe 25, so that the disinfection and deodorization liquid is safer.
The control valve 2 is internally provided with a negative pressure cavity 26, an exhaust cavity 27 and a control cavity 28 in sequence, a first control rod 6 is inserted on the side wall between the negative pressure cavity 26 and the exhaust cavity 27 in a sliding way, two ends of the first control rod 6 extend into the negative pressure cavity 26 and the exhaust cavity 27 respectively and are provided with a negative pressure core column 61 and an exhaust core column 62 respectively, one end of the negative pressure core column 61, far from the first control rod 6, is provided with a first reset spring 63 fixed on the side wall of the negative pressure cavity 26, a second control rod 7 is inserted on the side wall between the exhaust cavity 27 and the control cavity 28 in a sliding way, one end of the second control rod 7, far from the control cavity 28, extends into the exhaust cavity 27 and is fixed on the exhaust core column 62, and one end of the second control rod 7, far from the exhaust cavity 27, extends into the control cavity 28 and is provided with a first magnetic column 71;
the exhaust pipe 24 and the air outlet pipe 25 are uniformly communicated with the exhaust cavity 27, the exhaust stem 62 is far away from the joint of the exhaust pipe 24 and the air outlet pipe 25 and the control valve 2, the negative pressure main pipe 21 and the negative pressure suction pipe 23 are communicated with the negative pressure cavity 26, the negative pressure stem 61 blocks the joint of the negative pressure main pipe 21 and the negative pressure suction pipe 23 and the control valve 2, the control pipe 22 is communicated with the negative pressure cavity 26, and the control pipe 22 is positioned on one side of the negative pressure cavity 26 far away from the negative pressure stem 61.
When negative pressure suction is generated in the negative pressure main pipe 21, negative pressure suction is generated in the negative pressure cavity 26 through the control pipe 22, so that the negative pressure stem 61 compresses the first reset spring 63 to move, the negative pressure main pipe 21 and the negative pressure suction pipe 23 are opened, negative pressure can be generated in the liquid disinfection box 5, the elastic membrane 53 is contracted, when the negative pressure stem 61 moves, the negative pressure stem 61 moves through the first control rod 6, the exhaust stem 62 moves and blocks the exhaust pipe 24 and the air outlet pipe 25, the liquid disinfection box 5 is sealed, and the liquid disinfection box 5 can only absorb negative pressure through the unidirectional air pipe 51;
when the negative pressure main pipe 21 loses the negative pressure suction force, the negative pressure stem 61 moves reversely under the action of the first return spring 63 and blocks the negative pressure main pipe 21 and the negative pressure pumping pipe 23, the negative pressure pumping pipe 23 loses the negative pressure so that the elastic membrane 53 rebounds to increase the pressure in the liquid sterilizing box 5, the negative pressure stem 61 moves so that the first control rod 6 drives the air exhaust stem 62 to open the exhaust pipe 24 and the air outlet pipe 25, and then the air in the liquid sterilizing box 5 is exhausted through the exhaust pipe 24 and the air outlet pipe 25.
The suction valve 3 is respectively provided with a suction cavity 33 and a sensing cavity 34, a third control rod 8 is inserted on the side wall between the suction cavity 33 and the sensing cavity 34 in a sliding way, two ends of the third control rod 8 extend into the suction cavity 33 and the sensing cavity 34 respectively and are provided with a suction core column 82 and a second magnetic column 81 respectively, one section of the third control rod 8 positioned in the suction cavity 33 is sleeved with a second reset spring 83, two ends of the second reset spring are respectively fixed on the suction core column 82 and the inner wall of the suction cavity 33, the second magnetic column 81 and the first magnetic column 71 are mutually attracted, a liquid suction pipe 31 and a liquid discharge pipe 32 are communicated with the suction cavity 33, one end side wall of the suction valve 3 is provided with a cleaning hole 35 communicated with the suction cavity 33, and a threaded cover 36 is arranged in the cleaning hole 35 in a sealing way.
The exhaust stem 62 reciprocates, so that the first magnetic column 71 reciprocates through the second control rod 7, when the first magnetic column 71 is close to the suction valve 3, that is, when the negative pressure disappears, the first magnetic column 71 is close to the suction valve 3, so that the attractive force between the first magnetic column 71 and the second magnetic column 81 is increased, then the second magnetic column 81 is attracted to move to one side close to the control valve 2, then the suction stem 82 is pulled by the third control rod 8 to block the liquid suction pipe 31 and the liquid discharge pipe 32, the pus backflow after the negative pressure is avoided, when the first magnetic column 71 is far away from the suction valve 3, that is, when the negative pressure is generated, the first magnetic column 71 is far away from the second magnetic column 81, so that the attractive force between the first magnetic column 71 and the second magnetic column 81 is reduced, the second reset spring 83 pushes the suction stem 82 to move and open the liquid suction pipe 31 and the liquid discharge pipe 32, so that the negative pressure can attract the pus through the liquid suction pipe 31 and the liquid discharge pipe 32, and isolation control is realized, and safety and reliability are realized.
When the invention is used, the suction valve 3 is inserted into the outer assembly groove 12, the liquid disinfection box 5 is filled with disinfectant and then magnetically adsorbed at the bottom of the machine body 1, so that the negative pressure pumping pipe 23 and the exhaust pipe 24 are inserted into the jack 52, then the waste liquid bottle 4 is clamped on the fixed frame 13, the first joint 42 is arranged on the liquid discharge pipe 32, the second joint 44 is arranged on the one-way air pipe 51, the external suction head is arranged on the liquid pumping pipe 31, and the external pulse negative pressure pump is connected with the negative pressure main pipe 21;
the pulse negative pressure pump generates intermittent negative pressure in the negative pressure main pipe 21, so that the negative pressure core column 61 in the negative pressure cavity 26 moves reciprocally through the control pipe 22, the exhaust core column 62 in the exhaust cavity 27 moves reciprocally through the first control rod 6, the first magnetic column 71 in the control cavity 28 moves reciprocally through the second control rod 7, the first magnetic column 71 moves reciprocally in the induction cavity 34 through the magnetic force, and the suction core column 82 in the suction cavity 33 moves reciprocally through the third control rod 8;
when negative pressure suction is generated so that the negative pressure core column 61 pushes the first reset spring 63 to compress, the negative pressure main pipe 21 and the negative pressure suction pipe 23 are opened, the exhaust pipe 24 and the air outlet pipe 25 are closed, the magnetic force of the first magnetic column 71 away from the second magnetic column 81 is weakened, the second reset spring 83 rebounds so that the suction core column 82 opens the liquid suction pipe 31 and the liquid discharge pipe 32, the elastic membrane 53 is contracted by the negative pressure suction so as to generate negative pressure in the liquid disinfection box 5, negative pressure is generated in the liquid waste bottle 4 through the one-way air pipe 51, the second joint 44 and the air guide pipe 43, and negative pressure is generated in the liquid discharge pipe 32 through the liquid guide pipe 41 and the first joint 42, so that the suction head sucks out wound pus and then enters the liquid waste bottle 4 from the liquid suction pipe 31, the liquid discharge pipe 32, the first joint 42 and the liquid guide pipe 41 to collect;
when the negative pressure suction force is lost so that the first return spring 63 reversely pushes the negative pressure core column 61 to move, the negative pressure main pipe 21 and the negative pressure suction pipe 23 are closed, the exhaust pipe 24 and the air outlet pipe 25 are opened, the magnetic force of the first magnetic column 71 close to the second magnetic column 81 is enhanced, the second magnetic column 81 moves through the third control rod 8 so that the suction core column 82 closes the liquid suction pipe 31 and the liquid discharge pipe 32, the reflux of pus is avoided, the negative pressure is eliminated so that the elastic membrane 53 is reset to increase the pressure in the liquid disinfection box 5, and the disinfected gas is discharged through the exhaust pipe 24 and the air outlet pipe 25;
after the wound treatment is finished, the first connector 42 and the second connector 44 are pulled out, the second connector 44 is inserted into the first connector 42, the waste liquid bottle 4 is sealed and is thrown into the medical garbage can for treatment, and then the suction valve 3 and the liquid sterilizing box 5 are disassembled, sterilized and cleaned.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a diabetes foot wound negative pressure suction device, includes organism (1), its characterized in that, be equipped with interior fitting groove (11) and outer fitting groove (12) on the inside and outside wall of organism (1) respectively, insert respectively on interior fitting groove (11) and outer fitting groove (12) and establish control valve (2) and suction valve (3), insert respectively on control valve (2) and be equipped with negative pressure main pipe (21), negative pressure suction pipe (23), blast pipe (24) and outlet duct (25), insert on negative pressure main pipe (21) and be equipped with control pipe (22), the one end that negative pressure main pipe (21) was kept away from to control pipe (22) is inserted and is established on the one end that control valve (2) kept away from interior fitting groove (11), negative pressure main pipe (21) and outlet duct (25) are kept away from the one end of control valve (2) and all extend to the outside of organism (1), insert respectively on suction valve (3) and be equipped with suction pipe (31) and drain pipe (32), mount (13) are installed on the outside wall of organism (1) respectively, be equipped with drain pipe (4) on the wall of guide pipe (4) and drain pipe (41) are equipped with on the guide bottle (4), the liquid guide tube (41) and the air guide tube (43) are kept away from one end of the waste liquid bottle (4) and are respectively provided with a first joint (42) and a second joint (44), the inner diameter of the first joint (42) is equal to the outer diameter of the second joint (44), the first joint (42) is arranged on the liquid guide tube (32), the liquid disinfection box (5) is arranged on the bottom of the machine body (1) in a magnetic adsorption mode, a one-way air tube (51) is inserted below the side wall of the liquid disinfection box (5), the second joint (44) is arranged on the one-way air tube (51), two insertion holes (52) are formed in the top of the liquid disinfection box (5), one ends of the negative pressure suction tube (23) and the exhaust tube (24) are far away from the control valve (2) and are respectively and hermetically inserted in the two insertion holes (52), an elastic membrane (53) is arranged on the inner top wall of the liquid disinfection box (5) in a sealing mode, and the elastic membrane (53) is covered on the insertion holes (52) where the negative pressure suction tube (23) is inserted.
2. The negative pressure suction device for the diabetic foot wound according to claim 1, wherein a negative pressure cavity (26), an exhaust cavity (27) and a control cavity (28) are sequentially formed in the control valve (2), a first control rod (6) is slidably inserted into the side wall between the negative pressure cavity (26) and the exhaust cavity (27), two ends of the first control rod (6) respectively extend into the negative pressure cavity (26) and the exhaust cavity (27) and respectively provided with a negative pressure stem (61) and an exhaust stem (62), and one end, far away from the first control rod (6), of the negative pressure stem (61) is provided with a first reset spring (63) fixed on the side wall of the negative pressure cavity (26).
3. A diabetic foot wound negative pressure suction device according to claim 2 wherein a second control rod (7) is slidably inserted in the side wall between the exhaust chamber (27) and the control chamber (28), the end of the second control rod (7) remote from the control chamber (28) extends into the exhaust chamber (27) and is fixed to the exhaust stem (62), and the end of the second control rod (7) remote from the exhaust chamber (27) extends into the control chamber (28) and is provided with the first magnetic pole (71).
4. The negative pressure suction device for diabetic foot wounds according to claim 2, wherein the exhaust pipe (24) and the air outlet pipe (25) are uniformly communicated with the exhaust cavity (27), the exhaust stem (62) is far away from the connection part of the exhaust pipe (24) and the air outlet pipe (25) and the control valve (2), the negative pressure main pipe (21) and the negative pressure suction pipe (23) are communicated with the negative pressure cavity (26), the negative pressure stem (61) blocks the connection part of the negative pressure main pipe (21) and the negative pressure suction pipe (23) with the control valve (2), the control pipe (22) is communicated with the negative pressure cavity (26), and the control pipe (22) is located on one side of the negative pressure cavity (26) far away from the negative pressure stem (61).
5. A negative pressure suction device for a diabetic foot wound according to claim 3, characterized in that the suction valve (3) is respectively provided with a suction cavity (33) and a sensing cavity (34), a third control rod (8) is inserted on the side wall between the suction cavity (33) and the sensing cavity (34) in a sliding way, two ends of the third control rod (8) respectively extend into the suction cavity (33) and the sensing cavity (34) and respectively provided with a suction core column (82) and a second magnetic column (81), a section of the third control rod (8) positioned in the suction cavity (33) is sleeved with a second return spring (83) with two ends respectively fixed on the suction core column (82) and the inner wall of the suction cavity (33), and the second magnetic column (81) and the first magnetic column (71) are mutually attracted.
6. The negative pressure suction device for diabetic foot wound according to claim 5, wherein the liquid suction pipe (31) and the liquid discharge pipe (32) are both communicated with the suction cavity (33), a cleaning hole (35) communicated with the suction cavity (33) is formed in one end side wall of the suction valve (3), and a screw cap (36) is installed in the cleaning hole (35) in a sealing manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210161652.8A CN114306778B (en) | 2022-02-22 | 2022-02-22 | Negative pressure suction device for diabetic foot wound |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210161652.8A CN114306778B (en) | 2022-02-22 | 2022-02-22 | Negative pressure suction device for diabetic foot wound |
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| CN114306778A CN114306778A (en) | 2022-04-12 |
| CN114306778B true CN114306778B (en) | 2023-06-16 |
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| CN114306778A (en) | 2022-04-12 |
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