Table type negative pressure wound therapeutic apparatus

Abstract

The utility model relates to a table-type negative pressure wound therapeutic apparatus, which comprises a front cover, a back cover and a drainage box which are connected in sequence, and a control panel, a diaphragm pump, a fixed support, a pressure relief valve, a battery pack and a negative pressure tube which are arranged between the front cover and the back cover, and a key panel electrically connected with the control panel is arranged on the outer side of the front cover; through the combined action of the diaphragm pump and the pressure relief valve, the air pressure sensor detects the internal air pressure and feeds back the internal air pressure in real time, the air pressure value is controlled within a specified range, a continuous or intermittent negative pressure mode is met, and the negative pressure type negative pressure negative pressure device is suitable for various treatment modes such as acute wounds, non-acute wounds, diabetic feet, chronic ulcers and burn wounds.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical supplies, in particular to a table type negative pressure wound therapy instrument. BACKGROUND

[0002] The negative pressure wound therapy instrument is an auxiliary equipment for treating wounds, is controlled by a circuit module, carries out air extraction through a negative pressure vacuum pump, is used for sucking body fluid and wound secretion, and thus accelerates the healing of a wound, and is usually used in cooperation with a dressing.

[0003] In response to acute trauma, the required negative pressure value is -80 to -40 mmHg, and a continuous or intermittent negative pressure mode is selected according to the requirement; in response to diabetic foot, the required negative pressure value is -120 to -40 mmHg, and an intermittent negative pressure mode is required, and the traditional negative pressure wound therapy instrument is mainly composed of a filter, a collection container, an anti-overflow device, a diaphragm pump, a battery pack and other accessories, and the diaphragm pump generates a negative pressure source alone, the ability of the diaphragm pump to control air pressure is not flexible enough, the diaphragm pump cannot be applied to various types of wounds, and there is a certain limitation. SUMMARY

[0004] In order to overcome the defects in the background art, the utility model adopts the technical scheme: a table type negative pressure wound therapy instrument, including front cover, back cover and drainage box connected in sequence, and control panel, diaphragm pump, fixed support, pressure relief valve, battery pack and negative pressure pipe arranged between the front cover and the back cover, the front cover is provided with a key panel electrically connected with the control panel, the diaphragm pump is clamped on the front cover through the fixed support, the pressure relief valve is arranged on one side of the diaphragm pump, the inner side of the back cover is connected with the battery pack for supplying power to the control panel, the back cover is detachably connected with the drainage box, the drainage box is provided with a liquid accumulation cavity for storing wound exudate and a negative pressure port for connecting an external dressing, the control panel is provided with an air pressure sensor for detecting the air pressure of the liquid accumulation cavity, and the diaphragm pump is connected with the pressure relief valve, the air pressure sensor and the liquid accumulation cavity through the negative pressure pipe.

[0005] The above technical scheme is adopted, the key panel is used for controlling the control panel to select a treatment mode, the internal air pressure is detected by the air pressure sensor and is fed back in real time, and the diaphragm pump and the pressure relief valve are controlled by the control panel to work, wherein the diaphragm pump extracts the gas in the negative pressure pipe, so that the drainage box and the dressing connected to the drainage box generate negative pressure, are used for sucking body fluid, wound secretion and the like, and thus accelerate the healing of a wound; the pressure relief valve is used for connecting the negative pressure pipe with external gas, is used for balancing the internal air pressure of the drainage box, controls the air pressure value in a specified range, meets the continuous or intermittent negative pressure mode, is suitable for various treatment modes such as acute trauma, non-acute trauma, diabetic foot, chronic ulcer and burn wound, and has a very wide treatment range.

[0006] The utility model further provides for, the front cover is equipped with the hollow groove, first installation cavity and second installation cavity, control board, button panel install in the inside and outside both sides of the hollow groove, the diaphragm pump is connected in the first installation cavity through the fixed support, the pressure relief valve is connected in the second installation cavity, and the second installation cavity bottom is equipped with the air hole for ventilating.

[0007] Adopt above-mentioned technical scheme, control board is equipped with display screen, and display screen shows content in turn through the hollow groove, button panel, is used for showing drainage box installation error, adapter is incompatible, battery low, drainage box is full, air leakage and other prompt, ensures that equipment normal use.

[0008] The utility model further provides for, the front cover is located in the first installation cavity and is equipped with the support strip that is linearly and evenly distributed, the fixed support and support strip combination form the cylindrical groove for installing diaphragm pump, the front cover is located at the four around hollow groove, first installation cavity and is equipped with installation column, control board, fixed support are connected in the front cover through installation column, and the front cover is located in the second installation cavity and is equipped with the reinforcing rib that is cross distribution, the pressure relief valve is connected in the second installation cavity through the reinforcing rib.

[0009] Adopt above-mentioned technical scheme, control board, fixed support are equipped with the installation hole for accommodating self tapping screw, are connected on installation column through self tapping screw thread, its installation mode is simple, and it is convenient for batch production.

[0010] The utility model further provides for, the drainage box includes the drainage box front cover and drainage box back cover that are connected, and the drainage box front cover is equipped with the positioning groove for positioning, and the air inlet for connecting negative pressure pipe, and the drainage box back cover is equipped with the clamping portion for clamping back cover, the back cover is equipped with the convex portion that is adapted with the positioning groove, and the clamping groove corresponding with clamping portion.

[0011] Adopt above-mentioned technical scheme, and the drainage box is disposable accessory, is used for the secretion of wound to store, avoids the secretion to block the therapeutic instrument, and the drainage box is detachably connected in back cover in the mode of buckle, when replacing the drainage box, only needs to along the direction of convex portion dismounting, after pulling off negative pressure pipe, can replace new drainage box, and its replacement mode is simple and fast.

[0012] The utility model further provides for, the drainage box front cover is located in two side positioning grooves and is equipped with air inlet and thimble respectively, the back cover is equipped with the through -hole, detection board corresponding with air inlet, thimble, negative pressure pipe passes through the through -hole and is connected with air inlet, control board is electrically connected with thimble through detection board.

[0013] Adopting the technical scheme, when the drainage box is installed with the back cover, the contact pin touches the contact of the detection plate, when the liquid surface of the drainage box rises to the contact pin, the two contact pins are electrically connected, the control plate controls the diaphragm pump to stop working, thereby the liquid surface control is needed, and the exudate in the drainage box is prevented from overflowing.

[0014] The utility model further sets up, the effusion cavity is equipped with the coagulant for coagulating wound exudate, the drainage box front cover is located at the air inlet and is equipped with the step part, and the step part is equipped with the activated carbon bag.

[0015] Adopting the technical scheme, when the wound exudate enters the effusion cavity, the coagulant is used to solidify the wound exudate, the drainage box after use is handled according to medical waste management, the activated carbon bag is arranged between the effusion cavity and the air inlet, and is used to dry and purify gas.

[0016] The utility model further sets up, the negative pressure pipe includes four -way pipe, catheter and check valve, four -way pipe is equipped with the clamping part for connecting catheter, four -way pipe is connected with drainage box, diaphragm pump, pressure relief valve and air pressure sensor respectively through connecting pipe, and four -way pipe is connected with diaphragm pump and is equipped with check valve.

[0017] Further, the catheter is sleeved with a spring.

[0018] Adopting the technical scheme, the drainage box, diaphragm pump, pressure relief valve and air pressure sensor are connected to the same negative pressure pipe through the four -way pipe, realize the function of draining wound exudate, increasing air pressure, reducing air pressure and detecting air pressure value respectively, improve the structural strength of the catheter through the spring, avoid the folding of the catheter, and make the gas flow smoothly.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1. Through the joint action of the diaphragm pump and the pressure relief valve, the internal air pressure is detected by the air pressure sensor and real-time feedback is provided, the air pressure value is controlled in a specified range, the continuous or intermittent negative pressure mode is met, and the utility model is suitable for various treatment modes such as acute trauma, non-acute trauma, diabetic foot, chronic ulcer, and burn wound surface;

[0021] 2. The drainage box is a disposable accessory, and is detachably connected to the back cover in a buckle mode, when the drainage box is replaced, the drainage box is only detached along the direction of the convex part, the negative pressure pipe is pulled out, and then a new drainage box can be replaced, so that the replacement mode is simple and fast.

[0022] The utility model embodiment is further described below with reference to the drawings. DRAWINGS

[0023] Figure 1 It is a perspective view of the utility model;

[0024] Figure 2 is a structural exploded view of the utility model;

[0025] Figure 3 is a rear view of the front cover of the utility model;

[0026] Figure 4 is a front view of the back cover of the utility model;

[0027] Figure 5 is a front view of the drainage box of the utility model;

[0028] Figure 6 is a structural schematic view of the negative pressure pipe connection of the utility model;

[0029] Wherein: 1 - front cover, 2 - back cover, 3 - drainage box, 4 - control panel, 5 - diaphragm pump, 6 - fixed support, 7 - pressure relief valve, 8 - battery pack, 9 - negative pressure pipe, 10 - button panel, 11 - hollow slot, 12 - first installation cavity, 13 - second installation cavity, 14 - support strip, 15 - mounting column, 16 - reinforcing rib, 19 - coagulant, 20 - activated carbon package, 21 - protruding part, 22 - clamping groove, 23 - through hole, 31 - drainage box front cover, 32 - drainage box back cover, 33 - positioning groove, 34 - clamping part, 35 - step part, 41 - air pressure sensor, 42 - display screen, 43 - detection plate, 44 - thimble, 91 - four-way pipe, 92 - catheter, 93 - one-way valve, 100 - effusion cavity, 101 - negative pressure port, 102 - air inlet hole, 103 - air outlet hole; DETAILED DESCRIPTION

[0030] As Figure 1 , 2 , 5 shown, the embodiment provides a table type negative pressure wound treatment instrument, including front cover 1, back cover 2 and drainage box 3 connected in sequence, and control panel 4, diaphragm pump 5, fixed support 6, pressure relief valve 7, battery pack 8 and negative pressure pipe 9 between front cover 1 and back cover 2, front cover 1 outside is equipped with the button panel 10 of electric connection with control panel 4, diaphragm pump 5 is clamped in front cover 1 by fixed support 6, pressure relief valve 7 is located in one side of diaphragm pump 5, the inside of back cover 2 is connected for giving the battery pack 8 of control panel 4 power supply, back cover 2 detachably connected with drainage box 3, drainage box 3 is equipped with effusion cavity 100 for storing wound exudate, and negative pressure port 101 for external connection of dressing paste, control panel 4 is equipped with air pressure sensor 41 for detecting the air pressure of effusion cavity 100, diaphragm pump 5 is connected with pressure relief valve 7, air pressure sensor 41 and effusion cavity 100 simultaneously through negative pressure pipe 9.

[0031] combined Figure 3As shown, in the embodiment, the front cover 1 is provided with a hollow groove 11, a first mounting cavity 12 and a second mounting cavity 13, the control panel 4 and the key panel 10 are mounted on the inner and outer sides of the hollow groove 11, the diaphragm pump 5 is clamped to the first mounting cavity 12 through the fixing support 6, the pressure relief valve 7 is clamped to the second mounting cavity 13, and the second mounting cavity 13 is provided with an air outlet hole 103 for air permeability, the control panel 4 is provided with a display screen 42, and the display screen 42 displays the content through the hollow groove 11 and the key panel 10 in turn, for displaying the prompt of installation error of drainage box, incompatibility of adapter, low battery, full drainage box, abnormal air leakage and the like.

[0032] In the embodiment, the front cover 1 is provided with support strips 14 evenly distributed in a straight line in the first mounting cavity 12, the fixing support 6 and the support strip 14 are combined to form a cylindrical groove for mounting the diaphragm pump 5, the front cover 1 is provided with mounting columns 15 around the hollow groove 11 and the first mounting cavity 12, and the control panel 4 and the fixing support 6 are screwed to the front cover 1 through the mounting columns 15, the front cover 1 is provided with reinforcing ribs 16 distributed in a cross shape in the second mounting cavity 13, and the pressure relief valve 7 is clamped to the second mounting cavity 13 through the reinforcing ribs 16, and the control panel 4 and the fixing support 6 are provided with mounting holes for accommodating self-tapping screws at four corners, and are screwed to the mounting columns 15 through the self-tapping screws, which is simple in mounting mode and convenient for batch production.

[0033] In combination Figure 4 As shown, in the embodiment, the drainage box 3 includes a drainage box front cover 31 and a drainage box back cover 32 connected with each other, the drainage box front cover 31 is provided with a positioning groove 33 for positioning and an air inlet hole 102 for connecting the negative pressure tube 9, the drainage box back cover 32 is provided with a clamping portion 34 for clamping the back cover 2, the back cover 2 is provided with a protruding portion 21 matched with the positioning groove 33 and a clamping groove 22 corresponding to the clamping portion 34, the drainage box 3 is a disposable accessory for storing wound exudates to avoid the exudates from blocking the treatment instrument, and the drainage box 3 is detachably connected to the back cover 2 in a buckle mode, when the drainage box 3 is replaced, the drainage box 3 is only detached along the direction of the protruding portion 21, and after the negative pressure tube 9 is pulled out, a new drainage box 3 can be replaced, which is simple and fast in replacement mode.

[0034] In the embodiment, the drainage box front cover 31 is respectively provided with the air inlet hole 102 and the ejector pin 44 in the two side positioning grooves 33, the back cover 2 is provided with a through hole 23 and a detection plate 43 corresponding to the air inlet hole 102 and the ejector pin 44, the negative pressure tube 9 communicates with the air inlet hole 102 by passing through the through hole 23, and the control panel 4 is electrically connected with the ejector pin 44 through the detection plate 43, when the drainage box 3 is installed with the back cover 2, the ejector pin 44 touches the contact point of the detection plate 43, when the liquid level of the drainage box 3 rises to the ejector pin 44, the two ejector pins 44 are electrically connected, the control panel 4 controls the diaphragm pump 5 to stop working, thereby achieving the liquid level control, and avoiding the exudate in the drainage box 3 from overflowing.

[0035] As Figure 5 shown in the embodiment, the coagulant 19 for coagulating wound exudate is arranged in the effusion cavity 100, the stepped portion 35 is arranged at the air inlet hole 102 of the front cover 31 of the drainage box, and the activated carbon bag 20 is arranged on the stepped portion 35, so that the wound exudate is coagulated by the coagulant 19 after entering the effusion cavity 100, and the used drainage box 3 can be disposed according to medical waste management, the activated carbon bag 20 is arranged between the effusion cavity 100 and the air inlet hole 102, and is used for drying and purifying gas.

[0036] As Figure 6 shown in the embodiment, the negative pressure pipe 9 comprises a four-way pipe 91, a conduit 92 and a one-way valve 93, the four-way pipe 91 is provided with a clamping portion 34 for connecting the conduit 92, the four-way pipe 91 is connected with the drainage box 3, the diaphragm pump 5, the pressure relief valve 7 and the air pressure sensor 41 through the connecting pipe respectively, the one-way valve 93 is connected between the four-way pipe 91 and the diaphragm pump 5, and the spring is arranged in the conduit 92, so that the structural strength of the conduit 92 is improved, the conduit 92 is prevented from being folded, and the gas flows smoothly.

[0037] In the utility model, the pressure relief valve 7 is the electromagnetic valve with the plug head at the output end, when the air pressure in the negative pressure pipe 9 needs to be balanced, the plug head is opened to make the external gas enter the negative pressure pipe 9, so that the pressure increasing function is realized, the air pressure sensor 41 is the sensor patch, is welded on the control panel 4, the drainage box 3, the diaphragm pump 5, the pressure relief valve 7 and the air pressure sensor 41 are connected to the same negative pressure pipe 9 through the four-way pipe 91, and the functions of draining wound exudate, increasing air pressure, reducing air pressure and detecting air pressure value are realized respectively, it is worth mentioning that the diaphragm pump 5, the pressure relief valve 7 and the air pressure sensor 41 are the common control accessories on the market, so the detailed description is not repeated.

[0038] The working principle of the utility model is that the key panel 10 is used for controlling the control panel 4 to select the treatment mode, the internal air pressure is detected by the air pressure sensor 41 and is fed back in real time, the diaphragm pump 5 and the pressure relief valve 7 are controlled to work by the control panel 4, wherein the diaphragm pump 5 extracts the gas in the negative pressure pipe 9, so that the drainage box 3 and the dressing patch connected to the drainage box 3 generate negative pressure, are used for sucking away body fluid, wound secretion and the like, so as to accelerate wound healing, the pressure relief valve 7 is used for connecting the external gas to the negative pressure pipe 9, is used for balancing the internal air pressure of the drainage box 3, controls the air pressure value in the specified range, meets the continuous or intermittent negative pressure mode, is suitable for various treatment modes such as acute trauma, non-acute trauma, diabetic foot, chronic ulcer and burn wound.

[0039] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners. Any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A table-type negative pressure trauma therapy device, characterized in that: The utility model relates to a negative pressure drainage device, including the front cover (1) that connects in proper order, back cover (2) and drainage box (3) and control panel (4) that are equipped between front cover (1) and back cover (2), diaphragm pump (5), fixed support (6), pressure relief valve (7), battery pack (8) and negative pressure pipe (9), the outside of front cover (1) is equipped with the button panel (10) of electric connection with control panel (4), diaphragm pump (5) is clamped in front cover (1) through fixed support (6), pressure relief valve (7) is equipped in one side of diaphragm pump (5), the inside of back cover (2) is connected for the battery pack (8) of giving control panel (4) power supply, and back cover (2) is detachably connected with drainage box (3), and drainage box (3) is equipped with the effusion cavity (100) for depositing wound exudate and the negative pressure port (101) for external connection dressing paste, control panel (4) is equipped with the air pressure sensor (41) for detecting the air pressure of effusion cavity (100), and diaphragm pump (5) is connected with pressure relief valve (7), air pressure sensor (41) and effusion cavity (100) simultaneously through negative pressure pipe (9).

2. The apparatus according to claim 1, wherein the apparatus is a table type negative pressure wound therapy apparatus. The front cover (1) is provided with a hollow groove (11), a first mounting cavity (12) and a second mounting cavity (13), the control panel (4) and the button panel (10) are mounted on the inner and outer sides of the hollow groove (11), the diaphragm pump (5) is clamped in the first mounting cavity (12) through the fixed support (6), and the pressure relief valve (7) is clamped in the second mounting cavity (13), and the bottom of the second mounting cavity (13) is provided with an air outlet hole (103) for air permeation.

3. The apparatus according to claim 2, wherein the apparatus is a table type negative pressure wound therapy apparatus. The front cover (1) is provided with a plurality of support strips (14) arranged in a straight line and uniformly distributed in the first mounting cavity (12), the fixed support (6) and the support strips (14) are combined to form a cylindrical groove for mounting the diaphragm pump (5), the front cover (1) is provided with mounting columns (15) around the hollow groove (11) and the first mounting cavity (12), the control panel (4) and the fixed support (6) are threadedly connected to the front cover (1) through the mounting columns (15), and the front cover (1) is provided with a plurality of reinforcing ribs (16) arranged in a cross pattern in the second mounting cavity (13), and the pressure relief valve (7) is clamped in the second mounting cavity (13) through the reinforcing ribs (16).

4. The apparatus according to claim 1, wherein the apparatus is a table type negative pressure wound therapy apparatus. The drainage box (3) comprises a drainage box front cover (31) and a drainage box back cover (32) connected together, the drainage box front cover (31) is provided with a positioning groove (33) for positioning and an air inlet hole (102) for connecting the negative pressure pipe (9), the drainage box back cover (32) is provided with a clamping portion (34) for clamping the back cover (2), the back cover (2) is provided with a protruding portion (21) matched with the positioning groove (33) and a clamping groove (22) corresponding to the clamping portion (34).

5. The apparatus according to claim 4, wherein the apparatus is a table type negative pressure wound therapy apparatus. The drainage box front cover (31) is provided with an air inlet hole (102) and a thimble (44) in each of the two positioning grooves (33), the back cover (2) is provided with a through hole (23) corresponding to the air inlet hole (102) and the thimble (44), a detection plate (43), the negative pressure pipe (9) communicates with the air inlet hole (102) through the through hole (23), and the control panel (4) is electrically connected with the thimble (44) through the detection plate (43).

6. The apparatus according to claim 5, wherein the apparatus is a table type negative pressure wound therapy apparatus. The coagulation agent (19) for coagulating wound exudate is arranged in the effusion cavity (100), and the front cover (31) of the drainage box is provided with a stepped portion (35) at the air inlet hole (102), and the stepped portion (35) is provided with an activated carbon bag (20).

7. The apparatus according to claim 1, wherein the apparatus is a table type negative pressure wound therapy apparatus. The negative pressure pipe (9) comprises a four-way pipe (91), a conduit (92) and a one-way valve (93), the four-way pipe (91) is provided with a clamping portion (34) for connecting the conduit (92), the four-way pipe (91) is connected with the drainage box (3), the diaphragm pump (5), the pressure relief valve (7) and the air pressure sensor (41) through connecting pipes respectively, and the one-way valve (93) is connected between the four-way pipe (91) and the diaphragm pump (5).

8. The apparatus according to claim 7, wherein the apparatus is a table type negative pressure wound therapy apparatus. The conduit (92) is sleeved with a spring.

Images