Dual-purpose wound debridement device for negative pressure liquid suction and solution flushing

Abstract

The invention discloses a negative pressure liquid suction and solution flushing dual-purpose wound debridement device which comprises a debridement gun (4), a liquid collection pipeline (2) and a flushing pipeline (3) are arranged on the debridement gun (4), and a liquid suction head (5) connected with the liquid collection pipeline (2) and a flushing head (6) connected with the flushing pipeline (3) are arranged at the end of the debridement gun (4); a liquid collecting electromagnetic valve (7) is arranged on the liquid collecting pipeline (2); and a flushing electromagnetic valve (8) is arranged on the flushing pipeline (3). The negative pressure liquid suction function and the solution flushing function are integrated at the same working end, frequent switching operation caused by separation of a flushing handle and a washing liquid pipe in existing equipment is avoided, and the debridement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a wound debridement device with functions of negative pressure liquid suction and solution flushing. BACKGROUND

[0002] Wound debridement not only needs to flush the wound, but also needs to collect the waste liquid generated during the debridement process in time to prevent the waste liquid from polluting the surrounding tissue. Therefore, a debridement machine with functions of flushing and liquid suction has appeared. For example, a Chinese patent application with publication number CN112370595A discloses a multifunctional debridement instrument, which comprises: a host computer; a pneumatic flushing unit configured to act on a liquid medium with gas to form pneumatic flushing; an ultrasonic flushing unit configured to act on a liquid medium with ultrasonic waves to form ultrasonic flushing, comprising a second flushing handle; and a negative pressure suction unit configured to recover waste liquid generated by flushing.

[0003] However, such devices have some disadvantages. The flushing function and the negative pressure liquid suction function correspond to two different working ends, which leads to the fact that medical staff need to frequently switch between the flushing handle and the washing liquid pipe during the debridement operation to perform flushing and waste liquid collection operations. This easily distracts the attention of medical staff, affects the accuracy and continuity of the debridement operation, is not only cumbersome to operate, but also reduces the debridement efficiency, and brings many inconveniences to actual use. SUMMARY

[0004] The purpose of the present application is to provide a wound debridement device with functions of negative pressure liquid suction and solution flushing. The present application integrates the functions of negative pressure liquid suction and solution flushing in the same working end, avoiding the frequent switching operation caused by the separation of the flushing handle and the washing liquid pipe in the existing device, and improving the debridement efficiency.

[0005] The technical solution of the present application is a wound debridement device with functions of negative pressure liquid suction and solution flushing, which comprises a debridement gun, a liquid collecting pipeline and a flushing pipeline are arranged on the debridement gun, a liquid suction head connected with the liquid collecting pipeline and a flushing head connected with the flushing pipeline are arranged at the end of the debridement gun; a liquid collecting electromagnetic valve is arranged on the liquid collecting pipeline, and a flushing electromagnetic valve is arranged on the flushing pipeline; a decomposition assembly is arranged on the liquid collecting pipeline, the decomposition assembly comprises a solution placing assembly arranged on the outer side of the upper end of the debridement gun, a mixing container is arranged on the liquid collecting pipeline and close to the inlet end of the liquid collecting electromagnetic valve, and the liquid outlet end of the solution placing assembly is in communication with the mixing container.

[0006] In the wound debridement device with functions of negative pressure liquid suction and solution flushing described above, a control circuit board is arranged on the inner wall of the debridement gun, the control circuit board is connected with the liquid collecting electromagnetic valve and the flushing electromagnetic valve through a circuit, and the control circuit board is further connected with a switch for controlling the opening and closing of the liquid collecting electromagnetic valve and the flushing electromagnetic valve.

[0007] The solution placement assembly comprises a fixing seat arranged on the outer side of the upper end of the debridement gun, a solution bottle is threadedly connected to the upper end of the fixing seat, the fixing seat has a straight channel communicated with the liquid collecting pipeline, and an elastic ball is arranged in the straight channel to block the bottle opening of the solution bottle.

[0008] The mixing container comprises a balloon, one end of the balloon is provided with a pipe opening connected with the inlet end of the liquid collecting electromagnetic valve, the other end of the balloon is provided with a first pipe communicated with the straight channel and a second pipe communicated with the liquid collecting pipeline, and the side walls of the ports of the first pipe and the second pipe communicated with the balloon are arranged close to the arc surface of the balloon.

[0009] The first pipe and the second pipe are both provided with a right-angle seat connected with the inner wall of the debridement gun.

[0010] The debridement gun is provided with a positioning ring for buckling the liquid collecting pipeline and the flushing pipeline.

[0011] The upper end of the debridement gun is provided with an obtuse angle plate, and the liquid suction head and the flushing head are arranged on the obtuse angle plate.

[0012] The flushing head comprises a base arranged on the obtuse angle plate, one end of the base is provided with a through-flow pipe, the outer end of the through-flow pipe is provided with a rotatable adjusting member, the end of the through-flow pipe is provided with a through-flow hole, one end of the adjusting member is provided with symmetrically arranged adjusting holes with different hole diameters, and the adjusting holes are matched with the through-flow hole.

[0013] Compared with the prior art, the present application has the following advantages: 1、in the present application, during debridement, the operator holds the debridement gun, first opens the flushing electromagnetic valve, the flushing pipeline is opened, at this time, the liquid collecting electromagnetic valve is in a closed state, the liquid collecting pipeline is in a closed state, the solution flows out of the flushing head to flush the wound, then the necrotic tissue and blood residues and other waste liquid on the wound are sucked out, then the flushing electromagnetic valve is closed, the liquid collecting electromagnetic valve is opened, the liquid collecting pipeline is opened, the liquid suction head is attached to the wound of the patient, and the waste liquid on the wound is sucked out, the solution placement assembly has a collagenase solution, which has a certain decomposition effect on the human tissue in the waste liquid, the collagenase solution flows into the mixing container to mix with the waste liquid; by integrating the negative pressure liquid suction function and the solution flushing function on the debridement gun, the switching of different working states is convenient and fast, the frequent switching operation caused by the separation of the flushing handle and the washing liquid pipe in the existing equipment is avoided, and the debridement efficiency is improved.

[0014] , an obtuse-angle plate is used to form an angle between the flushing head and the suction head, and the two ports are separated by a certain distance to avoid mutual interference between the ports when working alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of a right-angle seat; Figure 4 is a schematic diagram of a mixing container; Figure 5 Schematic diagram of the internal structure of the mixing container; Figure 6 Schematic diagram of components placed for the solution; Figure 7 is a schematic diagram of an adjusting member; Figure 8 Schematic diagram of the adjustment hole.

[0016] Explanation of the marks in the accompanying drawings: 1-box, 2-liquid collection pipeline, 3-flushing pipeline, 4-debridement gun, 5-liquid suction head, 6-flushing head, 7-liquid collection solenoid valve, 8-flushing solenoid valve, 9-control circuit board, 10-switch, 11-decomposition assembly, 12-solution placement assembly, 13-mixing container, 14-fixed seat, 15-solution bottle, 16-straight channel, 17-elastic ball, 18-balloon, 19-tube mouth, 20-first tube, 21-second tube, 22-right-angle seat, 23-positioning ring, 24-obtuse-angle plate, 25-base, 26-flow tube, 27-adjusting member, 28-flow hole, 29-adjusting hole. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.

[0018] Embodiment: A wound debridement device for both negative pressure suction and solution flushing, as shown in the attached Figure 1 As shown, it includes a debridement gun 4, on which a liquid collection pipeline 2 and a flushing pipeline 3 are installed. The end of the debridement gun 4 is provided with a liquid suction head 5 connected to the liquid collection pipeline 2 and a flushing head 6 connected to the flushing pipeline 3; the liquid collection pipeline 2 is installed with a liquid collection solenoid valve 7, as shown in the attached figure. Figure 2As shown, a flushing solenoid valve 8 is installed on the flushing pipeline 3; the liquid collecting solenoid valve 7 adopts the model SMC VQ21A1-6G-C6, and the flushing solenoid valve adopts the model FPD-A82-24V. A control circuit board 9 is installed on the inner wall of the debridement gun 4. The control circuit board 9 is connected to the liquid collecting solenoid valve 7 and the flushing solenoid valve 8 through a line. The control circuit board 9 is also connected to a switch 10 for controlling the opening and closing of the liquid collecting solenoid valve 7 and the flushing solenoid valve 8. The switch adopts the Omron D2F-5L30 switch, a two-position self-reset button switch, which supports switching between "flushing" and "liquid aspiration". The opening and closing of the liquid collecting solenoid valve and the flushing solenoid valve are indirectly controlled by the control circuit board to realize the switching of the negative pressure liquid aspiration and solution flushing functions during the debridement process. The debridement gun 4 is equipped with a positioning ring 23 for pressing the liquid collection pipeline 2 and the flushing pipeline 3. The positioning ring is connected to the inner wall of the debridement gun via screws. The positioning ring will press the liquid collection pipeline 2 and the flushing pipeline 3 to maintain the stability of the pipeline.

[0019] The liquid collecting pipeline 2 is provided with a decomposition component 11. There are some inflammatory tissues or necrotic tissues in the wound. During the negative pressure suction process, these tissues will block the liquid collecting pipeline. By injecting collagenase solution into the liquid collecting pipeline through the decomposition component, these tissues can be decomposed to keep the liquid collecting pipeline smooth during operation. The decomposition component 11 includes a solution placement component 12 arranged on the outer side of the upper end of the debridement gun 4, as shown in the attached figure. Figure 6 As shown, a mixing container 13 is installed on the liquid collecting pipeline 2 and near the inlet end of the liquid collecting solenoid valve 7, and the liquid outlet end of the solution placing component 12 is connected to the mixing container 13; the solution placing component 12 includes a fixing seat 14 arranged on the outer side of the upper end of the debridement gun 4, and the upper end of the fixing seat 14 is connected to the solution bottle 15 through a thread, and the fixing seat 14 has a straight channel 16 connected to the liquid collecting pipeline 2, and the straight channel 16 is provided with an elastic ball 17 for blocking the bottle mouth of the solution bottle 15, and the solution bottle contains collagenase Solution, open the solution bottle, invert it on the fixing seat, and be threadedly connected to the fixing seat. The elastic ball is composed of a spring and a steel ball. One end of the spring is connected to the inner wall of the straight channel. Under the action of the spring, the steel ball will resist the bottle mouth of the solution bottle, so that the solution will not flow into the pipeline by itself. When the liquid collection pipeline is opened, negative pressure suction will be generated in the pipeline, the spring will be compressed, and a gap will be generated between the steel ball and the bottle mouth of the solution bottle. The solution flows into the mixing container through the straight channel. The mixing container 13 includes a balloon 18, as shown in the attached Figure 4 and 5As shown, one end of the balloon 18 has a nozzle 19 connected to the inlet end of the collecting electromagnetic valve 7, the other end of the balloon 18 is provided with a first tube 20 communicating with the straight channel 16 and a second tube 21 communicating with the collecting pipeline 2, the first tube 20 and the second tube 21 are arranged close to the arc surface of the balloon 18 on the side wall of the port communicating with the balloon 18, the solution flows into the cavity of the balloon along the inner wall of the balloon, the waste liquid also flows into the cavity of the balloon along the inner wall of the balloon, the solution and the waste liquid generate vortex when they rush into the balloon, realizing uniform mixing, so that the solution has sufficient reaction time with the tissue in the waste liquid, better decomposing the tissue, and the mixed solution flows into the collecting pipeline from the nozzle and is finally collected in the tank of the negative pressure collecting module. Figure 3 As shown, the upper end of the right-angle seat is fixedly connected with the tube, the right-angle seat is fixed with the inner wall of the debridement gun through a screw, and the whole balloon can be stably installed through the right-angle seat, so that the balloon is prevented from shaking during use.

[0020] The debridement gun 4 is externally connected with a box body 1 having a negative pressure collecting module and a flushing module, the box body is installed on a wall, the box body has a display panel, the negative pressure collecting module and the flushing module are started and are in standby state by pressing the switch button on the display panel, the box body is further provided with a temperature control module, which is mainly used for controlling the temperature of the flushing liquid, the temperature of the sprayed flushing liquid can be adjusted through the button on the display panel, the flushing module comprises an independent liquid storage tank, a flushing pump and a pipeline system, the liquid storage tank can contain medical physiological saline or special flushing liquid, different wounds have different requirements for flushing, some wounds need to be flushed for a long time and a large amount of liquid, for example, a dog wound needs to be flushed for 15-20 minutes, and the liquid consumption can reach 2-3 liters, therefore, the liquid storage tube is connected with other components of the flushing module in an externally connected mode; the negative pressure collecting module comprises a micro claw type vacuum pump, which can generate an adjustable negative pressure of-70 kPa to-20 kPa, the vacuum pump is communicated with the collecting pipeline 2 through a negative pressure adjusting valve, medical staff can check and adjust the negative pressure value in real time through the display panel of the box body 1, and the vacuum pump continuously works when the collecting electromagnetic valve 7 is opened, so that a stable negative pressure field is formed at the suction head 5. In order to deal with a large amount of waste liquid generated after flushing, a large-capacity tank is used as the waste liquid collecting tank in the negative pressure collecting module.

[0021] An obtuse plate 24 is installed at the upper end of the debridement gun 4, the suction head 5 and the flushing head 6 are arranged on the obtuse plate 24, and an angle is formed between the flushing head and the suction head through the obtuse plate, so that the two ports are separated by a certain distance and interference between the ports during separate work is avoided.

[0022] The flushing head 6 comprises a base 25 arranged on the obtuse plate 24, as shown in the accompanying drawings. Figure 7 and8 As shown, one end of the base 25 is provided with a through-flow pipe 26, the outer end of the through-flow pipe 26 is provided with a rotatable adjusting member 27, the end of the through-flow pipe 26 is provided with a through-flow hole 28, one end of the adjusting member 27 is provided with symmetrically arranged adjusting holes 29 with different hole diameters, and the adjusting holes 29 are matched with the through-flow hole 28. The adjusting member is provided with symmetrically arranged adjusting holes with different hole diameters, by rotating the adjusting member, the adjusting holes with different hole diameters can be matched with the through-flow hole at the end of the through-flow pipe, when the adjusting hole with a large hole diameter is matched with the through-flow hole, the flow passage of the flushing liquid is increased, the liquid output is increased, and the flushing pressure is increased; when the adjusting hole with a small hole diameter is matched, the flow passage is reduced, the liquid output is reduced, and the flushing pressure is reduced, so that the flushing intensity can be accurately controlled; different types (such as superficial wounds, deep wounds, infected wounds, etc.) or different stages of wounds have different requirements for the flow and pressure of the flushing liquid (for example, the wounds of fragile tissues need gentle flushing, and the wounds with more serious pollution may need stronger flushing). The adjusting member can be quickly adjusted by medical staff according to the actual situation, so as to avoid secondary damage to the wound or incomplete debridement due to improper flushing intensity.

[0023] The working principle of the present application is as follows: the medical staff holds the debridement gun 4, first flushes the wound, presses the switch 10 downward, the control circuit board 9 receives the signal and triggers the flushing electromagnetic valve 8 to open and the liquid collecting electromagnetic valve 7 to close, at this time, the flushing liquid in the flushing module is delivered to the flushing head 6 through the flushing pipeline 3, flows out through the through-flow hole 28 of the through-flow pipe 26, and flushes the wound, if it is necessary to adjust the flushing intensity, the adjusting member 27 of the flushing head 6 is rotated, the adjusting holes 29 with different hole diameters are matched with the through-flow hole 28, different flushing intensities are obtained, and the debridement requirements of different wounds are adapted; after flushing, the medical staff switches the switch 10 to another gear, presses the switch 10 upward, the control circuit board 9 instructs the flushing electromagnetic valve 8 to close and the liquid collecting electromagnetic valve 7 to open, the negative pressure liquid collecting module generates negative pressure, the waste liquid (containing necrotic tissue, blood residue, etc.) near the wound is sucked into the suction head 5 through the liquid collecting pipeline 2, at this time, the negative pressure in the liquid collecting pipeline 2 can overcome the spring pressure of the elastic ball 17 in the solution placing assembly 12, so that the elastic ball 17 is separated from the bottle mouth of the solution bottle 15, the treatment liquid in the solution bottle 15 flows into the mixing container 13 through the straight channel 16, the waste liquid enters the second pipe 21 of the mixing container 13 through the liquid collecting pipeline 2, the treatment liquid synchronously enters the mixing container 13 through the first pipe 20, because the ports of the first pipe 20 and the second pipe 21 are close to the arc-shaped inner wall of the balloon 18, the two liquids form a vortex in the balloon 18, are fully mixed, the treatment liquid can decompose the tissue in the waste liquid, avoids blocking the pipeline, and the mixed liquid flows into the liquid collecting pipeline 2 through the pipe port 19 of the balloon 18, and is finally collected by the negative pressure liquid collecting module.

[0024] The above examples only express the embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the patent, and in the present embodiment, up, down, left, right, front, back only represent their relative positions and not their absolute positions. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A wound debridement device for both negative pressure suction and solution flushing, comprising a debridement gun (4), characterized in that: The debridement gun (4) is provided with a liquid collection pipeline (2) and a flushing pipeline (3); the end of the debridement gun (4) is provided with a liquid suction head (5) connected to the liquid collection pipeline (2) and a flushing head (6) connected to the flushing pipeline (3); the liquid collection pipeline (2) is provided with a liquid collection solenoid valve (7), and the flushing pipeline (3) is provided with a flushing solenoid valve (8); the liquid collection pipeline (2) is provided with a decomposition component (11), and the decomposition component (11) includes a solution placement component (12) arranged on the outer side of the upper end of the debridement gun (4); a mixing container (13) is provided on the liquid collection pipeline (2) and near the inlet end of the liquid collection solenoid valve (7); the liquid outlet end of the solution placement component (12) is connected to the mixing container (13).

2. The wound debridement device for both negative pressure aspiration and solution irrigation according to claim 1, characterized in that: A control circuit board (9) is provided on the inner wall of the debridement gun (4), and the control circuit board (9) is connected to the liquid collecting solenoid valve (7) and the flushing solenoid valve (8) via a circuit. The control circuit board (9) is also connected to a switch (10) for controlling the opening and closing of the liquid collecting solenoid valve (7) and the flushing solenoid valve (8).

3. The wound debridement device for both negative pressure aspiration and solution irrigation according to claim 1, characterized in that: The solution placement assembly (12) includes a fixing seat (14) arranged on the outer side of the upper end of the debridement gun (4), the upper end of the fixing seat (14) is connected to a solution bottle (15) via a thread, and the fixing seat (14) has a straight channel (16) connected to the liquid collection pipeline (2), and the straight channel (16) is provided with an elastic ball (17) for blocking the bottle mouth of the solution bottle (15).

4. The wound debridement device for both negative pressure aspiration and solution irrigation according to claim 1, characterized in that: The mixing container (13) includes a balloon (18), one end of which is provided with a pipe opening (19) connected to the inlet end of the liquid collecting solenoid valve (7), and the other end of the balloon (18) is provided with a first pipe (20) connected to the straight channel (16) and a second pipe (21) connected to the liquid collecting pipeline (2), and the side walls of the ports of the first pipe (20) and the second pipe (21) connected to the balloon (18) are arranged close to the arcuate surface of the balloon (18).

5. The wound debridement device for both negative pressure aspiration and solution irrigation according to claim 4, characterized in that: The first tube (20) and the second tube (21) are both provided with a right-angle seat (22) connected to the inner wall of the debridement gun (4).

6. The wound debridement device for both negative pressure aspiration and solution irrigation according to claim 1, characterized in that: A positioning ring (23) for pressing the liquid collection pipeline (2) and the flushing pipeline (3) is provided in the debridement gun (4).

7. The wound debridement device for both negative pressure aspiration and solution irrigation according to claim 1, characterized in that: An obtuse-angled plate (24) is provided at the upper end of the debridement gun (4), and the liquid suction head (5) and the flushing head (6) are arranged on the obtuse-angled plate (24).

8. The wound debridement device for both negative pressure aspiration and solution irrigation according to claim 7, characterized in that: The flushing head (6) comprises a base (25) arranged on an obtuse-angled plate (24), a flow tube (26) being provided at one end of the base (25), a rotatable adjusting member (27) being provided at the outer end of the flow tube (26), a flow hole (28) being provided at the end of the flow tube (26), and adjusting holes (29) having different apertures and being symmetrically arranged at one end of the adjusting member (27), the adjusting holes (29) being matched with the flow hole (28).

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