CN115779165B - Disposable negative pressure imbibition dressing device for wound treatment - Google Patents

Abstract

The present invention discloses a disposable negative pressure liquid absorption dressing device for wound treatment, comprising a main unit, a liquid absorption bag is arranged on one side of the main unit, a dressing plate is arranged on one side of the liquid absorption bag, the main unit comprises a shell, a liquid absorption pump is fixed inside the shell, one side of the liquid absorption bag is respectively connected with a joint 2 and a joint 3 through a pipeline, a pipe fitting 3 is connected between the joint 2 and the inlet of the liquid absorption pump, a main control board is fixed inside the shell, a pressure sensor is arranged inside the joint 3, and the pressure sensor and the liquid absorption pump are respectively electrically connected to the main control board through a wire. The present invention sucks the exudate inside the patient's wound into the inside of the liquid absorption bag through the liquid absorption pump, so that the patient's wound is not easy to be mixed with pus, so that the patient's wound is conducive to healing, and when the exudate inside the liquid absorption bag is full, the air inlet is blocked by the expansion of the expansion rubber to prevent excessive outflow of exudate.

Description

A disposable negative pressure liquid absorbing dressing device for wound treatment

Technical Field

The present invention relates to the technical field of medical devices, and in particular to a disposable negative pressure liquid absorbing dressing device for wound treatment.

Background Art

During the wound healing process of an injured patient, exudate may sometimes be produced in the patient's wound. In this case, it is necessary to remove excess exudate, infectious materials and tissue debris from the patient's wound to create favorable conditions for the repair and growth of granulation tissue on the wound surface, thereby promoting wound healing.

For example, the authorization announcement number CN202110279700.9 discloses a group and dressing, including a negative pressure sponge drainage dressing and a protective film that can be torn off and arranged on the ventral side of the negative pressure sponge drainage dressing. The negative pressure sponge drainage dressing includes an artificial sponge and a sealing film arranged on the back of the artificial sponge, and the sealing film is used to seal and bond the artificial sponge to the wound surface; the protective film can cover the ventral side of the negative pressure sponge drainage dressing, and the artificial sponge and the sealing film can be exposed when torn off. The present invention also provides a miniature intelligent negative pressure wound treatment device.

At present, when doctors clean the excess exudate from the patient's wound, they will squeeze the exudate out, which will cause severe pain to the wound and make the patient suffer a lot in the process of removing the exudate. Therefore, it is urgent to design a disposable negative pressure liquid absorbing dressing device for wound treatment to solve the above problem.

Summary of the invention

The purpose of the present invention is to provide a disposable negative pressure liquid absorbing dressing device for wound treatment to solve the above-mentioned deficiencies in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

A disposable negative pressure absorbent dressing device for wound treatment, comprising a main unit, a liquid absorbent bag is arranged on one side of the main unit, a dressing plate is arranged on one side of the liquid absorbent bag, the main unit comprises a shell, a liquid absorbent pump is fixed inside the shell, one side of the liquid absorbent bag is respectively connected with a joint 2 and a joint 3 through pipelines, a pipe fitting 3 is connected between the joint 2 and the inlet of the liquid absorbent pump, a main control board is fixed inside the shell, a pressure sensor is arranged inside the joint 3, the pressure sensor and the liquid absorbent pump are respectively electrically connected to the main control board through wires, the liquid absorbent bag comprises an outer layer, liquid absorbent cotton is arranged inside the outer layer, evenly distributed support strips are fixed to the top outer wall of the liquid absorbent cotton, a number of liquid absorbent balls are arranged between two adjacent support strips, and a water stop component is fixed inside the connecting pipeline between the joint 2 and the liquid absorbent bag;

The water-stop assembly includes an outer tube, a fixing plate is arranged inside the outer tube, a support rod is fixed between the fixing plate and the inner wall of the outer tube, an expansion rubber is fixed to one side of the fixing plate, a baffle is integrally formed inside the outer tube, and an air hole is arranged on the outer wall of one side of the baffle.

Furthermore, an activated carbon layer is fixed inside the outer tube, a filter layer is fixed inside the outer tube, and the baffle and the fixed plate are located between the activated carbon layer and the filter layer.

Furthermore, a non-woven fabric layer is fixed inside the outer tube, the non-woven fabric layer is located on a side of the filter layer away from the activated carbon layer, and a moisture absorption layer is provided on a side of the non-woven fabric layer away from the filter layer.

Furthermore, an outer wall on one side of the absorbent bag is connected to an inlet pipe, a top outer wall of the dressing plate is connected to a pipe fitting 1, and a joint 1 is provided between the pipe fitting 1 and the inlet pipe.

Furthermore, a battery compartment is disposed inside the shell, a battery body is disposed inside the battery compartment, an indicator light is fixed to the top inner wall of the shell, and the indicator light and the battery body are electrically connected to the main control board.

Furthermore, a pipe fitting 2 is provided on one side of the shell, and the joint 3 includes a female part 1 and a male part 1, the female part 1 is connected to the pipe fitting 2, and the male part 1 is connected to the absorbent bag through a hose.

Furthermore, the connector 2 includes a female component 2 and a male component 2, the female component 2 is connected to the liquid-absorbing bag via a hose, and the male component 2 is connected to the pipe component 3.

Furthermore, the outer layer includes a waterproof layer, the inner wall of the waterproof layer is provided with a tough layer, and the inner wall of the tough layer is provided with an antibacterial layer.

Furthermore, the dressing plate includes a silicone shell, and a connection port is integrally formed on the top outer wall of the silicone shell, and the connection port is connected to a pipe.

Furthermore, a bonding sealing ring is bonded to the bottom outer wall of the silicone shell, and liquid-conducting cotton is arranged inside the silicone shell.

In the above technical solution, the present invention provides a disposable negative pressure liquid absorbing dressing device for wound treatment, which has the following beneficial effects:

(1) The present invention uses a suction pump to suck the exudate inside the patient's wound into the interior of the suction bag, so that the patient's wound is less likely to be mixed with pus, which is conducive to the healing of the patient's wound. When the exudate inside the suction bag is full, the air inlet is blocked by the expansion of the expansion rubber to prevent excessive outflow of exudate.

(2) The present invention arranges absorbent cotton and absorbent balls inside the absorbent bag, so that the absorbent bag can better absorb the exudate, and supports the upper inner wall of the absorbent bag through support bars, so that the absorbent bag will not be blocked under negative pressure.

(3) The present invention detects the pressure inside the liquid absorption bag through a pressure sensor, so that when the liquid absorption bag is full, the main control board can control the indicator light to flash, so that the patient can clearly understand the full state of the liquid absorption bag.

(4) The present invention can filter the odor generated in the exudate and the viruses diffused in the air through the moisture absorption layer, non-woven fabric layer, filter layer and activated carbon layer, so that the air discharged from the suction pump is virus-free and odor-free air.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

FIG1 is a schematic diagram of the overall structure of an embodiment of a disposable negative pressure absorbent dressing device for wound treatment according to the present invention.

FIG. 2 is a partial structural schematic diagram of an embodiment of a disposable negative pressure absorbent dressing device for wound treatment according to the present invention.

FIG3 is a schematic diagram of the internal structure of a host provided by an embodiment of a disposable negative pressure absorbent dressing device for wound treatment of the present invention.

FIG. 4 is a schematic diagram of the structure of a dressing plate provided in an embodiment of a disposable negative pressure absorbent dressing device for wound treatment according to the present invention.

FIG5 is an enlarged structural schematic diagram of point A provided in an embodiment of a disposable negative pressure absorbent dressing device for wound treatment of the present invention.

FIG. 6 is a schematic diagram of the structure of a liquid absorbent bag provided in an embodiment of a disposable negative pressure liquid absorbent dressing device for wound treatment according to the present invention.

FIG. 7 is a schematic diagram of the structure of a water-stopping component provided in an embodiment of a disposable negative pressure liquid-absorbing dressing device for wound treatment according to the present invention.

Description of reference numerals:

1 host, 2 absorbent bag, 3 dressing plate, 4 connector 1, 5 pipe fitting 1, 6 inlet pipe, 7 pipe fitting 2, 8 pipe fitting 3, 9 connector 2, 10 connector 3, 11 female part 1, 12 male part 1, 13 female part 2, 14 male part 2, 15 shell, 16 main control board, 17 battery compartment, 18 battery body, 19 indicator light, 20 outer layer, 21 absorbent cotton, 22 support bar, 23 absorbent ball, 24 waterproof layer, 25 toughness layer, 26 antibacterial layer, 27 pressure sensor, 28 water stop assembly, 29 silicone shell, 30 adhesive sealing ring, 31 liquid guide cotton, 32 connection port, 33 suction pump, 34 activated carbon layer, 35 outer tube, 36 filter layer, 37 non-woven fabric layer, 38 moisture absorption layer, 39 fixing plate, 40 support rod, 41 baffle, 42 air vent, 43 expansion rubber.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

As shown in Fig. 1-7, a disposable negative pressure absorbent dressing device for wound treatment provided by an embodiment of the present invention comprises a main unit 1, a liquid absorbent bag 2 is arranged on one side of the main unit 1, a dressing plate 3 is arranged on one side of the liquid absorbent bag 2, the main unit 1 comprises a shell 15, a liquid absorbent pump 33 is fixed inside the shell 15, one side of the liquid absorbent bag 2 is respectively connected with a joint 2 9 and a joint 3 10 through pipelines, a pipe fitting 3 8 is connected between the joint 2 9 and the inlet of the liquid absorbent pump 33, a main control board 16 is fixed inside the shell 15, a pressure sensor 27 is arranged inside the joint 3 10, the pressure sensor 27 and the liquid absorbent pump 33 are respectively electrically connected to the main control board 16 through wires, the liquid absorbent bag 2 comprises an outer layer 20, liquid absorbent cotton 21 is arranged inside the outer layer 20, evenly distributed support bars 22 are fixed to the top outer wall of the liquid absorbent cotton 21, a plurality of liquid absorbent balls 23 are arranged between two adjacent support bars 22, and a water stop component 28 is fixed inside the connecting pipe between the joint 2 9 and the liquid absorbent bag 2;

The water-stop assembly 28 includes an outer tube 35, a fixing plate 39 is arranged inside the outer tube 35, a support rod 40 is fixed between the fixing plate 39 and the inner wall of the outer tube 35, an expansion rubber 43 is fixed to one side of the fixing plate 39, a baffle 41 is integrally formed inside the outer tube 35, and an air vent 42 is arranged on the outer wall of one side of the baffle 41.

Specifically, in this embodiment, it includes a host 1, a liquid absorbent bag 2 is arranged on one side of the host 1, the liquid absorbent bag 2 is used to absorb and store exudate, a dressing board 3 is arranged on one side of the liquid absorbent bag 2, the dressing board 3 is attached to the wound, and dressing boards 3 of different sizes can be replaced according to the size of the wound, the host 1 includes a shell 15, a liquid absorbent pump 33 is fixed inside the shell 15, one side of the liquid absorbent bag 2 is connected with a connector 2 9 and a connector 3 10 through pipelines, the connector 2 9 and the connector 3 10 are Luer connectors with check valves, a pipe fitting 3 8 is connected between the connector 2 9 and the inlet of the liquid absorbent pump 33, so that the liquid absorbent pump 33 forms a negative pressure inside the liquid absorbent bag 2, a main control board 16 is fixed inside the shell 15, the main control board 16 is a circuit board, and a pressure sensor is arranged inside the connector 3 10 27, using the pressure sensor 27 to detect the negative pressure value inside the absorbent bag 2, the pressure sensor 27 and the absorbent pump 33 are electrically connected to the main control board 16 through wires, so that the main control board 16 controls the absorbent pump 33 to work, the absorbent bag 2 includes an outer layer 20, the outer layer 20 is provided with absorbent cotton 21, the absorbent cotton 21 absorbs exudate, the top outer wall of the absorbent cotton 21 is fixed with evenly distributed support bars 22, the support bars 22 prevent the absorbent bag 2 from shrinking under negative pressure, a number of absorbent balls 23 are arranged between two adjacent support bars 22, the absorbent balls 23 also have the function of absorbing exudate, the connection pipe between the joint 2 9 and the absorbent bag 2 is fixed with a water stop component 28, the water stop component 28 prevents the exudate inside the absorbent bag 2 from entering the absorbent pump 33 when it is full;

The water-stop assembly 28 includes an outer tube 35, which is fixed inside the connecting pipe between the joint 29 and the absorbent bag 2. A fixing plate 39 is provided inside the outer tube 35, and a support rod 40 is fixed between the fixing plate 39 and the inner wall of the outer tube 35. The fixing plate 39 and the outer tube 35 are fixed by the support rod 40 so that there is a gap for air circulation between the fixing plate 39 and the outer tube 35. An expansion rubber 43 is fixed on one side of the fixing plate 39, and the expansion rubber 43 can expand several times when it comes into contact with water. A baffle 41 is integrally formed inside the outer tube 35, and an air hole 42 is provided on the outer wall of one side of the baffle 41. The air hole 42 allows air to pass through the baffle 41, and the air hole 42 can be sealed when the expansion rubber 43 expands.

The present invention provides a disposable negative pressure absorbent dressing device for wound treatment. The present invention uses a suction pump 33 to suck the exudate inside the patient's wound into the interior of the absorbent bag 2, so that the patient's wound is not easily mixed with pus, which is conducive to the healing of the patient's wound. The disadvantage of the prior art that the patient is given a painful wheel by squeezing is solved. When the exudate inside the absorbent bag 2 is full, the air inlet is blocked by the expansion of the expansion rubber 43 to prevent excessive outflow of exudate. Since the exudate may contain viruses carried by the patient, etc., the exudate is prevented from polluting the external environment.

In one embodiment provided by the present invention, an activated carbon layer 34 is fixed inside the outer tube 35, and the activated carbon layer 34 plays a role in removing odor. A filter layer 36 is fixed inside the outer tube 35, and a baffle 41 and a fixing plate 39 are located between the activated carbon layer 34 and the filter layer 36. A non-woven fabric layer 37 is fixed inside the outer tube 35, and the non-woven fabric layer 37 is located on the side of the filter layer 36 away from the activated carbon layer 34. A hygroscopic layer 38 is provided on the side of the non-woven fabric layer 37 away from the filter layer 36, and the hygroscopic layer 38 is used to absorb moisture in the air. The hygroscopic layer 38, the non-woven fabric layer 37, the filter layer 36 and the activated carbon layer 34 can filter the odor generated in the exudate and the viruses diffused in the air, so that the air discharged from the suction pump 33 is virus-free and odor-free air.

In another embodiment provided by the present invention, an outer wall on one side of the absorbent bag 2 is connected to an inlet tube 6, a pipe fitting 5 is connected to the top outer wall of the dressing plate 3, a connector 4 is provided between the pipe fitting 5 and the inlet tube 6, and the connector 4 is also a Luer connector with a one-way valve.

In another embodiment provided by the present invention, a battery compartment 17 is provided inside the outer shell 15, and a battery body 18 is provided inside the battery compartment 17. The battery body 18 provides power for the operation of the main unit. An indicator light 19 is fixed to the top inner wall of the outer shell 15, and the indicator light 19 and the battery body 18 are electrically connected to the main control board 16. During the liquid absorption process, the pressure inside the liquid absorption bag 2 is detected by the pressure sensor 27, so that when the liquid absorption bag 2 is full, the indicator light 19 can be controlled by the main control board 16 to flash, so that the patient can clearly understand the full state of the liquid absorption bag 2. When the exudate inside the liquid absorption bag 2 is full, the water-stop assembly 28 is closed, so that the pressure sensor 27 cannot detect the negative pressure or the negative pressure is insufficient, so that the main control board 16 controls the indicator light 19 to flash and alarm.

In another embodiment provided by the present invention, a pipe fitting 27 is provided on one side of the shell 15, and a data line connected to the pressure sensor 27 is provided inside the pipe fitting 27. The connector 3 10 includes a female component 11 and a male component 12, the female component 11 is connected to the pipe fitting 27, the pressure sensor 27 is located inside the female component 11, the male component 12 is connected to the liquid-absorbing bag 2 through a hose, so that the female component 11 is connected to the liquid-absorbing bag 2, and the end of the pipe fitting 27 close to the shell 15 is sealed, so that the pressure sensor 27 can detect the pressure change inside the liquid-absorbing bag 2, the connector 29 includes a female component 2 13 and a male component 2 14, the female component 2 13 is connected to the liquid-absorbing bag 2 through a hose, the male component 2 14 is connected to the pipe fitting 3 8, so that the pipe fitting 3 8 can be easily connected and disconnected with the liquid-absorbing bag 2, and the outer layer 20 includes a waterproof layer 24, the inner wall of the waterproof layer 24 is provided with a tough layer 25, and the inner wall of the tough layer 25 is provided with an antibacterial layer 26, and the antibacterial layer 26 is used to prevent bacteria in the exudate from growing rapidly inside the absorbent bag 2, and the dressing plate 3 includes a silicone shell 29, and the top outer wall of the silicone shell 29 is integrally formed with a connection port 32, and the connection port 32 is connected to the pipe 5, and the connection port 32 and the pipe 5 can be disassembled, so as to facilitate the replacement of dressing plates 3 of different sizes, and the bottom outer wall of the silicone shell 29 is bonded with an adhesive sealing ring 30, and the adhesive sealing ring 30 can bond the surrounding of the silicone shell 29 to the skin around the wound, which is conducive to the formation of negative pressure inside the silicone shell 29, and the interior of the silicone shell 29 is provided with a liquid-conducting cotton 31, and the liquid-conducting cotton 31 can quickly absorb a small amount of exudate from the wound.

Example 1

A disposable negative pressure absorbent dressing device for wound treatment provided by an embodiment of the present invention comprises a main unit 1, a liquid absorbent bag 2 is arranged on one side of the main unit 1, the liquid absorbent bag 2 is used to absorb and store exudate, a dressing plate 3 is arranged on one side of the liquid absorbent bag 2, the dressing plate 3 is attached to the wound, and dressing plates 3 of different sizes can be replaced according to the size of the wound, the main unit 1 comprises a shell 15, a liquid absorbent pump 33 is fixed inside the shell 15, one side of the liquid absorbent bag 2 is respectively connected to a second connector 9 and a third connector 10 through a pipeline, the second connector 9 and the third connector 10 are Luer connectors with a check valve, and the connectors 3 are connected to the wound by a pipe. A pipe fitting 3 8 is connected between the head 2 9 and the inlet of the liquid suction pump 33, so that the liquid suction pump 33 forms a negative pressure inside the liquid suction bag 2. A main control board 16 is fixed inside the shell 15. The main control board 16 is a circuit board. A pressure sensor 27 is arranged inside the connector 3 10. The pressure sensor 27 is used to detect the negative pressure value inside the liquid suction bag 2. The pressure sensor 27 and the liquid suction pump 33 are electrically connected to the main control board 16 through wires, so that the main control board 16 controls the liquid suction pump 33 to work. The liquid suction bag 2 includes an outer layer 20, and a liquid absorbent cotton 21 is arranged inside the outer layer 20. The liquid absorbent cotton 21 absorbs exudate, the top outer wall of the absorbent cotton 21 is fixed with evenly distributed support strips 22, the support strips 22 prevent the absorbent bag 2 from shrinking under negative pressure, a plurality of absorbent balls 23 are arranged between two adjacent support strips 22, the absorbent balls 23 also have the function of absorbing exudate, a water stop component 28 is fixed inside the connecting pipe between the joint 29 and the absorbent bag 2, the water stop component 28 prevents the exudate inside the absorbent bag 2 from entering the absorbent pump 33 when it is full; the water stop component 28 includes an outer tube 35, the water stop component 28 is fixed inside the connecting pipe between the joint 29 and the absorbent bag 2, and the outer tube 35 is fixed inside the connecting pipe between the joint 29 and the absorbent bag 2. 5 is provided with a fixing plate 39 inside, and a support rod 40 is fixed between the fixing plate 39 and the inner wall of the outer tube 35. The fixing plate 39 and the outer tube 35 are fixed by the support rod 40 so that there is a gap for air circulation between the fixing plate 39 and the outer tube 35. An expansion rubber 43 is fixed to one side of the fixing plate 39. The expansion rubber 43 can expand several times when it meets water. A baffle 41 is integrally formed inside the outer tube 35, and an air hole 42 is provided on one side of the outer wall of the baffle 41. The air hole 42 allows air to pass through the baffle 41. When the expansion rubber 43 expands, the air hole 42 can be sealed.

Example 2

The embodiment of the present invention provides a disposable negative pressure liquid absorption dressing device for wound treatment. This embodiment is further limited on the basis of embodiment 1, wherein an activated carbon layer 34 is fixed inside the outer tube 35, and the activated carbon layer 34 has the function of removing odor. A filter layer 36 is fixed inside the outer tube 35, and a baffle 41 and a fixing plate 39 are located between the activated carbon layer 34 and the filter layer 36. A non-woven fabric layer 37 is fixed inside the outer tube 35, and the non-woven fabric layer 37 is located on the side of the filter layer 36 away from the activated carbon layer 34. A hygroscopic layer 38 is provided on the side of the non-woven fabric layer 37 away from the filter layer 36. The hygroscopic layer 38 is used to absorb moisture in the air. The hygroscopic layer 38, the non-woven fabric layer 37, the filter layer 36 and the activated carbon layer 34 can filter the odor generated in the exudate and the virus diffused in the air, so that the moisture from the liquid absorption pump can be removed. The air discharged by 33 is virus-free and odorless air; an outer wall on one side of the absorbent bag 2 is connected to an inlet pipe 6, and a pipe fitting 5 is connected to the top outer wall of the dressing plate 3. A connector 4 is provided between the pipe fitting 5 and the inlet pipe 6, and the connector 4 is also a Luer connector with a one-way valve; a battery compartment 17 is provided inside the shell 15, and a battery body 18 is provided inside the battery compartment 17. The battery body 18 provides power for the operation of the host. An indicator light 19 is fixed to the top inner wall of the shell 15, and the indicator light 19 and the battery body 18 are electrically connected to the main control board 16. During the absorption process, the pressure inside the absorbent bag 2 is detected by the pressure sensor 27, so that when the absorbent bag 2 is full, the indicator light 19 can be controlled by the main control board 16 to flash, so that the patient can clearly understand the state of the absorbent bag 2 being full. When the exudate inside the absorbent bag 2 is full, the patient can clearly understand the state of the absorbent bag 2 being full. , the water-stop assembly 28 is closed, so that the pressure sensor 27 cannot detect negative pressure or insufficient negative pressure, so that the main control board 16 controls the indicator light 19 to flash an alarm; a pipe fitting 27 is provided on one side of the outer shell 15, and the interior of the pipe fitting 27 has a data line connected to the pressure sensor 27, and the connector 3 10 includes a female component 11 and a male component 12, the female component 11 is connected to the pipe fitting 27, the pressure sensor 27 is located inside the female component 11, and the male component 12 is connected to the liquid-absorbing bag 2 through a hose, so that the female component 11 is connected to the liquid-absorbing bag 2, and the end of the pipe fitting 27 close to the outer shell 15 is sealed, so that the pressure sensor 27 can detect the pressure change inside the liquid-absorbing bag 2, and the connector 29 includes a female component 213 and a male component 214, the female component 213 is connected to the liquid-absorbing bag 2 through a hose, and the male component 214 is connected to the pipe fitting 3 8, so that the pipe fitting 3 8 can be conveniently connected to The absorbent bag 2 is connected and disconnected, the outer layer 20 includes a waterproof layer 24, the inner wall of the waterproof layer 24 is provided with a tough layer 25, the inner wall of the tough layer 25 is provided with an antibacterial layer 26, and the antibacterial layer 26 is used to prevent bacteria in the exudate from growing rapidly inside the absorbent bag 2, and the dressing plate 3 includes a silicone shell 29, and the top outer wall of the silicone shell 29 is integrally formed with a connection port 32, and the connection port 32 is connected to the pipe fitting 5, and the connection port 32 and the pipe fitting 5 can be disassembled, so as to facilitate the replacement of dressing plates 3 of different sizes, and the bottom outer wall of the silicone shell 29 is bonded with an adhesive sealing ring 30, and the adhesive sealing ring 30 can bond the four sides of the silicone shell 29 to the skin around the wound, which is conducive to the formation of negative pressure inside the silicone shell 29, and the interior of the silicone shell 29 is provided with a liquid-conducting cotton 31, which can quickly absorb a small amount of exudate from the wound.

Working principle: When it is necessary to drain the exudate from the wound, the dressing plate 3 is placed on the patient's wound so that the adhesive seal ring 30 is bonded to the skin around the wound, the battery body 18 is electrically connected to the main control board 16, so that the main control board 16 controls the suction pump 33 to work, so that negative pressure is formed inside the suction bag 2, and the pressure inside the suction bag 2 is monitored by the pressure sensor 27, so that when the pressure sensor 27 detects that the pressure reaches a predetermined value, the main control board 16 controls the suction pump 33 to work slowly, so that the exudate inside the wound passes through the pipe 15 and the inlet pipe. 6 enters the interior of the absorbent bag 2, so that the absorbent cotton 21 and the absorbent ball 23 inside the absorbent bag 2 absorb the exudate. When the exudate inside the absorbent bag 2 is full, the exudate will enter the interior of the water-stop assembly 28, so that the expansion rubber 43 expands when it meets water, and then the expansion rubber 43 blocks the air permeable hole 42, so that the exudate cannot enter the interior of the suction pump 33. At this time, the pressure sensor 27 detects that the pressure inside the absorbent bag 2 does not reach the predetermined value within the predetermined time, and then the pressure sensor 27 transmits the electrical signal to the main control board 16, so that the main control board 16 controls the indicator light 19 to flash.

The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (10)

1. The utility model provides a disposable negative pressure imbibition dressing device for wound treatment, includes host computer (1), its characterized in that, one side of host computer (1) is provided with imbibition bag (2), one side of imbibition bag (2) is provided with dressing board (3), host computer (1) includes shell (15), the inside of shell (15) is fixed with imbibition pump (33), one side of imbibition bag (2) is connected with joint two (9) and joint three (10) through the pipeline respectively, be connected with pipe fitting three (8) between the import of joint two (9) and imbibition pump (33), the inside of shell (15) is fixed with master control board (16), the inside of joint three (10) is provided with pressure sensor (27), pressure sensor (27) and imbibition pump (33) are electric connection through wire and master control board (16) respectively, imbibition bag (2) are including skin (20), the inside of skin (20) is provided with imbibition cotton (21), the top outer wall of imbibition cotton (21) is fixed with evenly distributed's support bar (22), adjacent two support bars (22) are provided with imbibition ball (23) and are connected with water stop assembly (28) inside between two support bars (23);

The water stop assembly (28) comprises an outer pipe (35), a fixing plate (39) is arranged in the outer pipe (35), a supporting rod (40) is fixed between the fixing plate (39) and the inner wall of the outer pipe (35), expansion rubber (43) is fixed on one side of the fixing plate (39), a baffle (41) is integrally formed in the outer pipe (35), and ventilation holes (42) are formed in the outer wall of one side of the baffle (41).

2. A disposable negative pressure absorbent dressing device for wound therapy according to claim 1, characterized in that an activated carbon layer (34) is fixed inside the outer tube (35), a filter layer (36) is fixed inside the outer tube (35), and the baffle (41) and the fixing plate (39) are located between the activated carbon layer (34) and the filter layer (36).

3. A disposable negative pressure absorbent dressing device for wound therapy according to claim 2, characterized in that a non-woven layer (37) is fixed inside the outer tube (35), the non-woven layer (37) is located at the side of the filter layer (36) away from the activated carbon layer (34), and a moisture absorption layer (38) is provided at the side of the non-woven layer (37) away from the filter layer (36).

4. The disposable negative pressure imbibition dressing device for wound therapy according to claim 1, characterized in that an inlet tube (6) is connected to one side outer wall of the imbibition bag (2), a first pipe fitting (5) is connected to the top outer wall of the dressing plate (3), and a first joint (4) is arranged between the first pipe fitting (5) and the inlet tube (6).

5. The disposable negative pressure liquid suction dressing device for wound treatment according to claim 1, wherein a battery compartment (17) is arranged in the shell (15), a battery body (18) is arranged in the battery compartment (17), an indicator lamp (19) is fixed on the inner wall of the top of the shell (15), and the indicator lamp (19) and the battery body (18) are electrically connected with a main control board (16).

6. A disposable negative pressure absorbent dressing device for wound therapy according to claim 1, characterized in that one side of the housing (15) is provided with a tubing second (7), the third connector (10) comprises a female part first (11) and a male part first (12), the female part first (11) is connected with the tubing second (7), and the male part first (12) is connected with the absorbent bag (2) by a hose.

7. A disposable negative pressure absorbent dressing device for wound therapy according to claim 1, wherein the second connector (9) comprises a second female part (13) and a second male part (14), the second female part (13) being connected to the absorbent bag (2) by a hose, the second male part (14) being connected to the third tube (8).

8. A disposable negative pressure absorbent dressing device for wound therapy according to claim 1, characterized in that the outer layer (20) comprises a waterproof layer (24), the inner wall of the waterproof layer (24) is provided with a tough layer (25), the inner wall of the tough layer (25) is provided with an antibacterial layer (26).

9. A disposable negative pressure absorbent dressing device for wound therapy according to claim 1, characterized in that the dressing plate (3) comprises a silicone shell (29), the top outer wall of the silicone shell (29) is integrally formed with a connection port (32), and the connection port (32) is connected with the first tube (5).

10. A disposable negative pressure liquid suction dressing device for wound treatment according to claim 9, characterized in that the bottom outer wall of the silica gel shell (29) is adhered with an adhesive sealing ring (30), and the inside of the silica gel shell (29) is provided with liquid guiding cotton (31).