Portable negative pressure device

Abstract

The invention relates to a portable negative pressure device. The cleaning device comprises a first support, a second support, a first shell fixedly arranged on the first support, a second shell fixedly arranged on the second support, a cleaning mechanism fixedly arranged on the first shell, a conveying mechanism fixedly arranged on the first shell, an electric control mechanism fixedly arranged on the second shell and a storage mechanism fixedly arranged on the first shell and the second shell. The cleaning mechanism comprises a first cavity fixedly formed in the first shell, a threaded rod fixedly arranged on the first shell, a first sliding groove fixedly formed in the first shell, a second sliding groove fixedly formed in the threaded rod, a baffle fixedly arranged on the first shell and a first sealing ring fixedly arranged on the baffle. The rotating assembly is arranged on the first sliding groove in a sliding mode, and the driving assembly is fixedly arranged on the rotating assembly; the negative pressure device can be hung beside the nursing bed through the first support and the second support, and the problem that an existing negative pressure device is not portable enough is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a portable negative pressure device. Background Art

[0002] The negative pressure suction device is a tool that creates a negative pressure state in its suction head through a certain method, and the substances outside the suction head are squeezed into the suction head, thereby achieving the suction effect. It is used in various clinical departments, mainly for medical drainage, expectoration, discharge of dirty blood and secretions, etc.

[0003] In hospitals, negative pressure suction devices usually use central negative pressure suction, which is suitable for long-term bedridden patients. However, for non-long-term hospitalized patients and patients who need to be transferred to other hospitals, central negative pressure suction cannot be used when leaving the ward. Therefore, a portable negative pressure device is needed to perform negative pressure suction. Summary of the invention

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a portable negative pressure device, including a first bracket, a second bracket, a first shell fixed on the first bracket, a second shell fixed on the second bracket, a cleaning mechanism fixed on the first shell, a conveying mechanism fixed on the first shell, an electric control mechanism fixed on the second shell, and a storage mechanism fixed on the first shell and the second shell;

[0006] The cleaning mechanism includes a first cavity fixed on the first shell, a threaded rod fixed on the first shell, a first slide groove fixed on the first shell, a second slide groove fixed on the threaded rod, a baffle fixed on the first shell, a first sealing ring fixed on the baffle, a rotating component slidably arranged on the first slide groove, and a driving component fixed on the rotating component.

[0007] Specifically, the rotating assembly includes a first bracket slidably arranged on the first slide groove, a second bracket slidably arranged on the second slide groove, a first mounting groove fixedly arranged on the first bracket and the second bracket, a connecting ring rotatably arranged on the first mounting groove, a plurality of rotating shafts rotatably passing through the connecting ring, a first gear fixedly arranged on the rotating shaft, a rack fixedly arranged on the first mounting groove, a plurality of first brushes fixedly arranged on the rotating shaft, a bottom plate sleeved on one end of the rotating shaft, and a second brush fixedly arranged on the bottom plate.

[0008] Specifically, the driving assembly includes a motor fixed on the second bracket, a second gear fixed on the motor, a plurality of limit brackets fixed on the second bracket, a first driving ring rotatably mounted on the limit bracket and meshing with the second gear and rotatably sleeved on the threaded rod, a rotating shaft bracket fixed on the second bracket, a third gear rotatably mounted on the rotating shaft bracket and meshing with the first driving ring, and a second driving ring sleeved on the other end of the rotating shaft and meshing with the third gear and the second gear.

[0009] Specifically, the conveying mechanism includes a first hose fixedly provided on the first shell and the second shell, a first through hole fixedly provided on the second shell, a second through hole fixedly provided on the second shell, a second hose fixedly provided on the first shell, and a suction assembly fixedly provided on the second hose.

[0010] Specifically, the suction assembly includes a handle fixedly arranged on the second hose, a through groove fixedly arranged on the handle, a connecting pipe fixedly arranged on the handle, and an anti-blocking device fixedly arranged on the handle.

[0011] Specifically, the anti-blocking device includes a second mounting groove fixed on the handle, a crushing plate slidably arranged on the second mounting groove, a plurality of third sliding grooves fixed on the handle, a plurality of guide rods fixed on the crushing plate and slidably arranged on the third sliding grooves, a third through hole fixed on the handle and connected to the second mounting groove, a plurality of springs with one end fixed on the crushing plate and the other end fixed on the second mounting groove, and a second sealing ring fixed on the second mounting groove and the crushing plate.

[0012] Specifically, the electric control mechanism includes a battery fixed on the second shell, an electric control board fixed on the second shell, an operation panel fixed on the second shell, a display screen fixed on the operation panel, a plurality of buttons fixed on the operation panel, a water pump fixed on the second shell, a vacuum pump fixed on the second shell, and a diverter valve fixed on the second shell.

[0013] Specifically, the storage mechanism includes a second cavity fixedly arranged on the first shell, a guide surface fixedly arranged on the first shell, a cross valve fixedly arranged on the first shell, and a water tank fixedly arranged on the second shell.

[0014] The beneficial effects of the present invention are:

[0015] (1) The motor drives the second gear to rotate, and the second gear drives the first driving ring to rotate. The first driving ring is meshed with the threaded rod, so the first driving ring will rotate and move downward along the threaded rod. Because the first driving ring is rotatably arranged on the limit bracket, and the limit bracket is fixedly arranged on the second bracket, the second bracket will also slide downward on the second slide groove, and drive the first bracket to slide downward on the first slide groove through the connecting ring. The first bracket and the second bracket move downward synchronously. Because the first driving ring is meshed with the third gear, the third gear will rotate and the rotation direction is the same as the second gear. Then, the second gear and the third gear will drive the second driving ring to rotate at the same time. The second driving ring is sleeved on the rotating shaft, so it will drive the rotating shaft to revolve around the threaded rod, and then drive the connecting ring to rotate on the first mounting groove, and at the same time drive the bottom plate to rotate. When the rotating shaft revolves, the first gear will roll along the rack, that is, the rotating shaft rotates. In the process of moving downward, the side surface and bottom surface of the inner wall of the first shell are cleaned.

[0016] (2) When the coagulated blood clot enters the through groove, the blood clot is in a clumping state and has a certain toughness, which can easily block the through groove and make the negative pressure device ineffective. When the through groove is blocked, the pipeline behind the blood clot is in a sealed state. Due to the operation of the vacuum pump, the air pressure in the pipeline behind the blood clot will continue to decrease. When it decreases to a certain extent, the space formed by the crushing plate and the second mounting groove is connected to the outside through the third through hole, that is, the air pressure is normal atmospheric pressure, which is greater than the air pressure in the pipeline. Therefore, the crushing plate will move due to the air pressure difference, squeeze and crush the blood clot in the through groove, and the spring will be stretched. Because the width of the crushing plate is smaller than the diameter of the through groove, when the crushing plate moves a certain distance, the side of the crushing plate with the guide rod is out of contact with the second mounting groove, that is, the through groove is partially conductive, so that the internal and external air pressures are gradually balanced. After the air pressure difference is reduced, the spring resets and can pull the crushing plate to reset, thereby realizing the function of automatically identifying pipeline blockage and clearing it.

[0017] (3) The negative pressure device can be hung next to the nursing bed through the first bracket and the second bracket, solving the problem that the existing negative pressure device is not portable enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0019] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0020] In the attached picture:

[0021] Figure 1It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a right side view of the present invention;

[0023] Figure 3 for Figure 2 Line section of AA in the middle;

[0024] Figure 4 for Figure 2 Isometric section view of middle AA;

[0025] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0026] Figure 6 for Figure 4 A partial enlarged view of point C in the middle;

[0027] Figure 7 for Figure 4 A partial enlarged view of point F in the middle;

[0028] Figure 8 for Figure 4 A partial enlarged view of point E in the middle;

[0029] Fig. 9 Bit Figure 4 A partial enlarged view of point F in the middle. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0032] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] Reference Figure 1-9 As shown, a portable negative pressure device described in the present invention comprises a first bracket 1, a second bracket 2, a first shell 3 fixed on the first bracket, a second shell 4 fixed on the second bracket, a cleaning mechanism 5 fixed on the first shell, a conveying mechanism 6 fixed on the first shell, an electric control mechanism 7 fixed on the second shell, and a storage mechanism 8 fixed on the first shell and the second shell; the first bracket and the second bracket have the same structure and are both provided with hooks, so that the negative pressure device can be hung next to a nursing bed, which solves the problem that the existing negative pressure device is not portable enough. U-shaped hooks are provided on the outside of the first bracket and the second bracket, on which the conveying mechanism can be placed; the cleaning mechanism is used to clean the storage mechanism of the first shell; the conveying mechanism is used to absorb the patient's sputum or blood clots during surgery; the storage mechanism on the first shell stores the absorbed sputum or blood clots, and the storage mechanism on the second shell is used to store disinfectant water

[0036] The cleaning mechanism includes a first cavity 51 fixed on the first shell, a threaded rod 52 fixed on the first shell, a first slide groove 53 fixed on the first shell, a second slide groove 54 fixed on the threaded rod, a baffle 55 fixed on the first shell, a first sealing ring 56 fixed on the baffle, a rotating component 57 slidably arranged on the first slide groove, and a driving component 58 fixed on the rotating component; the first cavity is used to install the cleaning mechanism; the first slide groove and the second slide groove limit the rotating component; the sealing ring cooperates with the rotating component to play a sealing role; the driving component is used to drive the rotating component to rotate; the rotating component can rotate to clean the inner wall of the first shell.

[0037] Specifically, the rotating assembly includes a first bracket 571 slidably arranged on the first slide groove, a second bracket 572 slidably arranged on the second slide groove, a first mounting groove 573 fixedly arranged on the first bracket and the second bracket, a connecting ring 574 rotatably arranged on the first mounting groove, a plurality of rotating shafts 575 rotatably passing through the connecting ring, a first gear 576 fixedly arranged on the rotating shaft, a rack 577 fixedly arranged on the first mounting groove, a plurality of first brushes 578 fixedly arranged on the rotating shaft, a bottom plate 579 sleeved on one end of the rotating shaft, and a second brush fixedly arranged on the bottom plate; the first bracket can slide along the first slide groove, the first slide groove limits the first bracket, and the first bracket cannot rotate; the second bracket can slide along the second slide groove, the second slide groove limits the second bracket, and the second bracket cannot rotate; the first bracket and The second bracket is not in contact, one side of the connecting ring is in contact with the second bracket, and the other side is in contact with the first bracket. The connecting ring can support the first bracket and the second bracket; the rotating shaft passes through the connecting ring, and the connecting ring is sleeved on the rotating shaft. The rotating shaft can rotate on its own, and the connecting ring can also push the rotating shaft to revolve around the threaded rod; the first gear is meshed with the rack, and when the connecting ring pushes the rotating shaft to revolve around the threaded rod, since the first gear is meshed with the rack, the rotating shaft will also rotate when it revolves; the first brush is fixed on the rotating shaft, and when the rotating shaft revolves and rotates, it rubs against the inner wall of the first shell for cleaning; the bottom plate is sleeved on one end of the rotating shaft, so the rotating shaft will drive the bottom plate to rotate when it revolves; the second brush is arranged on the bottom surface of the bottom plate, and when the bottom plate contacts the bottom surface of the inner wall of the first shell, the bottom surface of the inner wall of the first shell can be cleaned.

[0038] Specifically, the driving assembly includes a motor 581 fixed on the second bracket, a second gear 582 fixed on the motor, a plurality of limit brackets 583 fixed on the second bracket, a first driving ring 584 rotatably arranged on the limit bracket and meshing with the second gear and rotatably sleeved on the threaded rod, a rotating shaft bracket 585 fixed on the second bracket, a third gear 586 rotatably arranged on the rotating shaft bracket and meshing with the first driving ring, and a second driving ring 587 sleeved on the other end of the rotating shaft and meshing with the third gear and the second gear; the motor drives the second gear to rotate, and the second gear drives the first driving ring to rotate, and the first driving ring meshes with the threaded rod, so the first driving ring will rotate and move downward along the threaded rod, and because the first driving ring The rotation is arranged on the limit bracket, and the limit bracket is fixed on the second bracket, so the second bracket will also slide downward on the second slide groove, and drive the first bracket to slide downward on the first slide groove through the connecting ring, and the first bracket and the second bracket move downward synchronously. Because the first driving ring is meshed with the third gear, the third gear will rotate and the rotation direction is the same as the second gear, and then the second gear and the third gear will drive the second driving ring to rotate at the same time, and the second driving ring is sleeved on the rotating shaft, so it will drive the rotating shaft to revolve around the threaded rod, and then drive the connecting ring to rotate on the first mounting groove, and drive the bottom plate to rotate at the same time. When the rotating shaft revolves, the first gear will roll along the rack, that is, the rotating shaft rotates; in the process of moving downward, the side surface and bottom surface of the inner wall of the first shell are cleaned.

[0039] Specifically, the conveying mechanism includes a first hose 61 fixed on the first shell and the second shell, a first through hole 62 fixed on the second shell, a second through hole 63 fixed on the second shell, a second hose 64 fixed on the first shell, and a suction assembly 65 fixed on the second hose; the first shell is used to maintain the air pressure balance inside and outside the second shell to enable the vacuum pump to work normally; the second through hole is used to clean the suction assembly; a valve is provided on the second through hole; a valve is provided on the end of the first hose connected to the first shell; a valve is provided on the end of the second hose connected to the first shell.

[0040] Specifically, the suction component includes a handle 651 fixed on the second hose, a through groove 652 fixed on the handle, a connecting tube 653 fixed on the handle, and an anti-blocking device 654 fixed on the handle; the handle is used for medical staff to hold; the connecting tube can be used directly to absorb coagulated blood clots, or the hose can be put on the connecting tube to absorb sputum.

[0041] Specifically, the anti-blocking device includes a second mounting groove 6541 fixed on the handle, a crushing plate 6542 slidably mounted on the second mounting groove, a plurality of third slide grooves 6543 fixed on the handle, a plurality of guide rods 6544 fixedly mounted on the crushing plate and slidably mounted on the third slide groove, a third through hole 6545 fixedly mounted on the handle and connected to the second mounting groove, a plurality of springs 6546 with one end fixedly mounted on the crushing plate and the other end fixedly mounted on the second mounting groove, and a second sealing ring 6547 fixedly mounted on the second mounting groove and the crushing plate; the crushing plate can slide along the second mounting groove to crush the coagulated blood clot blocked in the through groove; the width of the crushing plate is smaller than the diameter of the through groove; the guide rod limits the crushing plate; the second sealing ring is used to seal the second mounting groove and the crushing plate to prevent air leakage in the gap between the crushing plate and the second mounting groove, which causes air leakage in the suction pipeline and leads to insufficient negative pressure; the third through hole is used to connect the second mounting groove to the crushing plate The spring is used for resetting; when the coagulated blood clot enters the through groove, the blood clot is clumped and has a certain toughness, which can easily block the through groove and make the negative pressure device ineffective. When the through groove is blocked, the pipeline behind the blood clot is in a sealed state. Due to the operation of the vacuum pump, the air pressure in the pipeline behind the blood clot will continue to decrease. When it decreases to a certain extent, the space formed by the crushing plate and the second mounting groove is connected to the outside world through the third through hole, that is, the air pressure is normal atmospheric pressure, which is greater than the air pressure in the pipeline. Therefore, the crushing plate will move due to the air pressure difference, squeeze and crush the blood clot in the through groove, and the spring will be stretched. Because the width of the crushing plate is smaller than the diameter of the through groove, when the crushing plate moves a certain distance, the side of the crushing plate with a guide rod is out of contact with the second mounting groove, that is, the through groove is partially conductive, so that the internal and external air pressures are gradually balanced. After the air pressure difference is reduced, the spring resets and can pull the crushing plate to reset, thereby realizing the function of automatically identifying pipeline blockage and unblocking.

[0042] Specifically, the electric control mechanism includes a battery 71 fixed on the second shell, an electric control board 72 fixed on the second shell, an operation panel 73 fixed on the second shell, a display screen 74 fixed on the operation panel, a plurality of buttons 75 fixed on the operation panel, a water pump 76 fixed on the second shell, a vacuum pump 77 fixed on the second shell, and a diverter valve 78 fixed on the second shell; the battery can be charged and discharged, which is convenient for use in places without sockets; the electric control board is used to control various valves and electric components; the display screen is used to display the working status; the buttons are used to adjust parameters; one side of the diverter valve is connected to the first hose, and one side of the diverter valve is connected to the first hose. One end is connected to the vacuum pump and the other end is connected to the water pump. When the working state is negative pressure absorption, the diverter valve closes the valve connected to the water pump and opens the valve connected to the vacuum pump. When in the cleaning state, the diverter valve closes the valve connected to the vacuum pump and opens the valve connected to the water pump. The water pump can input disinfectant water into the first shell through the first hose, and cooperate with the cleaning mechanism to clean the inner wall of the first shell. When a hose is provided on the connecting pipe, the hose can be inserted into the water tank from the second through hole, the water pump is started, and the disinfectant water in the water tank is drawn, so that the disinfectant water enters the through groove from the connecting pipe and then enters the second hose, and finally enters the first shell, thereby completing the cleaning of the through groove and the first hose.

[0043] Specifically, the storage mechanism includes a second cavity 81 fixed on the first shell, a guide surface 82 fixed on the first shell, a cross valve 83 fixed on the first shell, and a water tank 84 fixed on the second shell; the backflow surface is an inclined surface, which is convenient for discharging dirt and disinfectant water in the first shell; the cross valve is a prior art, and the valve can be opened by pressing the cross valve.

[0044] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A portable negative pressure device, characterized in that: The device comprises a first bracket (1), a second bracket (2), a first shell (3) fixedly mounted on the first bracket, a second shell (4) fixedly mounted on the second bracket, a cleaning mechanism (5) fixedly mounted on the first shell, a conveying mechanism (6) fixedly mounted on the first shell, an electric control mechanism (7) fixedly mounted on the second shell, and a storage mechanism (8) fixedly mounted on the first shell and the second shell; The cleaning mechanism comprises a first cavity (51) fixedly arranged on a first shell, a threaded rod (52) fixedly arranged on the first shell, a first slide groove (53) fixedly arranged on the first shell, a second slide groove (54) fixedly arranged on the threaded rod, a baffle (55) fixedly arranged on the first shell, a first sealing ring (56) fixedly arranged on the baffle, a rotating assembly (57) slidably arranged on the first slide groove, and a driving assembly (58) fixedly arranged on the rotating assembly.

2. A portable negative pressure device according to claim 1, characterized in that: The rotating assembly includes a first bracket (571) slidably arranged on the first sliding groove, a second bracket (572) slidably arranged on the second sliding groove, a first mounting groove (573) fixedly arranged on the first bracket and the second bracket, a connecting ring (574) rotatably arranged on the first mounting groove, a plurality of rotating shafts (575) rotatably passing through the connecting rings, a first gear (576) fixedly arranged on the rotating shaft, a rack (577) fixedly arranged on the first mounting groove, a plurality of first brushes (578) fixedly arranged on the rotating shaft, a bottom plate (579) sleeved on one end of the rotating shaft, and a second brush fixedly arranged on the bottom plate.

3. A portable negative pressure device according to claim 2, characterized in that: The driving assembly comprises a motor (581) fixed on the second bracket, a second gear (582) fixed on the motor, a plurality of limit brackets (583) fixed on the second bracket, a first driving ring (584) rotatably mounted on the limit bracket and meshing with the second gear and rotatably sleeved on the threaded rod, a rotating shaft bracket (585) fixed on the second bracket, a third gear (586) rotatably mounted on the rotating shaft bracket and meshing with the first driving ring, and a second driving ring (587) sleeved on the other end of the rotating shaft and meshing with the third gear and the second gear.

4. A portable negative pressure device according to claim 1, characterized in that: The conveying mechanism comprises a first hose (61) fixedly arranged on the first shell and the second shell, a first through hole (62) fixedly arranged on the second shell, a second through hole (63) fixedly arranged on the second shell, a second hose (64) fixedly arranged on the first shell, and a suction assembly (65) fixedly arranged on the second hose.

5. A portable negative pressure device according to claim 4, characterized in that: The suction assembly comprises a handle (651) fixedly arranged on the second hose, a through slot (652) fixedly arranged on the handle, a connecting pipe (653) fixedly arranged on the handle, and an anti-blocking device (654) fixedly arranged on the handle.

6. A portable negative pressure device according to claim 5, characterized in that: The anti-blocking device includes a second mounting groove (6541) fixedly arranged on the handle, a crushing plate (6542) slidably arranged on the second mounting groove, a plurality of third sliding grooves (6543) fixedly arranged on the handle, a plurality of guide rods (6544) fixedly arranged on the crushing plate and slidably arranged on the third sliding grooves, a third through hole (6545) fixedly arranged on the handle and connected to the second mounting groove, a plurality of springs (6546) one end of which is fixedly arranged on the crushing plate and the other end of which is fixedly arranged on the second mounting groove, and a second sealing ring (6547) fixedly arranged on the second mounting groove and the crushing plate.

7. A portable negative pressure device according to claim 1, characterized in that: The electric control mechanism comprises a battery (71) fixedly mounted on the second shell, an electric control board (72) fixedly mounted on the second shell, an operation panel (73) fixedly mounted on the second shell, a display screen (74) fixedly mounted on the operation panel, a plurality of buttons (75) fixedly mounted on the operation panel, a water pump (76) fixedly mounted on the second shell, a vacuum pump (77) fixedly mounted on the second shell, and a diverter valve (78) fixedly mounted on the second shell.

8. A portable negative pressure device according to claim 1, characterized in that: The storage mechanism comprises a second cavity (81) fixedly arranged on the first shell, a flow guide surface (82) fixedly arranged on the first shell, a cross valve (83) fixedly arranged on the first shell, and a water tank (84) fixedly arranged on the second shell.

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