Pressure-adjustable constant-temperature wound irrigator

Abstract

The invention discloses a pressure-adjustable constant-temperature wound irrigator, and relates to the technical field of medical instruments, the pressure-adjustable constant-temperature wound irrigator comprises an irrigator body and a liquid storage tank, a liquid inlet cavity is formed in the irrigator body, and a plurality of heating pipes are fixedly mounted in the irrigator body and located in the liquid inlet cavity; the device has the beneficial effects that different pressing plates are pressed by pedaling to perform size adjustment operation, a first rack transversely moves to drive a mounting inner rod to move, then a gear and the rack are matched to drive a valve plate to rotate, and a water temperature detector is fixedly mounted on one side of the flusher body; the pressure of liquid conveying in the liquid outlet pipe is adjusted through rotation of the valve plate, then the effect of adjusting the pressure of output liquid is achieved by pressing the pressing plate, and the hydraulic pressure can be adjusted more conveniently according to the use requirement of a user by arranging the two arc gears capable of enabling the mounting inner rod to move oppositely.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a pressure-adjustable constant-temperature wound irrigator. Background Art

[0002] In the process of surgical care, it is often necessary to flush the wound. Flushing the wound is beneficial to remove necrotic tissue and foreign matter, and can help heal from the inside of the tissue to the surface of the skin. However, for sinus wounds, it may be difficult to see the entire wound, and the wound is not cleaned properly, resulting in premature healing of the wound surface while the deep sinus tract remains unhealed. Currently, there are two main methods for flushing wounds in clinical care: directly pouring the flushing solution and flushing with a syringe.

[0003] Among them, the most commonly used method is syringe flushing, which pre-configures the flushing liquid to be flushed, and then uses an infusion tube to connect with the output end of the syringe, and a group of three-way valves are arranged between the output end of the syringe and the infusion tube, one end of the three-way valve is connected to the infusion tube, the other end is connected to the output end of the syringe, and the last end is used for output flushing of the flushing liquid. During operation, by controlling the switch of the three-way valve, the infusion tube is first connected to the output end of the syringe, and then the syringe is pulled out to input the flushing liquid into the syringe, and then the output end of the syringe is closed with the infusion tube and connected with one end of the flushing liquid, and then the syringe is pressed to spray the flushing liquid inside it to flush the wound. The speed and flow rate of the flushing liquid spraying depend on the manual pressing pressure on the syringe. The greater the pressure, the faster the internal installed inner rod plate moves, and the greater the speed and flow rate of driving the flushing liquid output.

[0004] In the prior art, flushing is performed by manually adjusting the pressure, but the doctor's hands may be occupied during the actual flushing process, and it is impossible to adjust accurately. Some people also propose to adjust the pressure by stepping on the foot (similar to the accelerator of a car), but the stability of the pressure requires constant force to be applied to the pedal. Since the operator cannot ensure that he can apply the same pressure to the syringe, the tension of the foot muscles will always be in a changing state, which will cause the speed of the flushing liquid to be sprayed out. When flushing the wound, different flushing forces will be applied, causing different degrees of pain in the wound, and even causing the wound to deteriorate, which is not conducive to recovery. Moreover, different wounds require different flushing pressures at different courses of disease, and it is difficult for inexperienced doctors to accurately grasp them. In addition, during flushing, the liquid cannot be kept at a constant temperature, which causes discomfort to the patient due to the cold when flushing the wound in cold weather, and may even cause other complications. For this reason, we propose an adjustable pressure constant temperature wound flusher. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wound irrigator with adjustable pressure and constant temperature, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wound irrigator with adjustable pressure and constant temperature, comprising an irrigator body and a liquid storage tank, the irrigator body is provided with a liquid inlet cavity, a plurality of heating tubes are fixedly installed inside the irrigator body and located inside the liquid inlet cavity, a water temperature detector is fixedly installed on one side of the irrigator body, the water temperature detector is inserted into the liquid inlet cavity and fixedly connected thereto, an auxiliary tube is fixedly installed inside the irrigator body and located at the bottom of the liquid inlet cavity, a liquid outlet tube is provided on the side of the irrigator body away from the liquid storage tank, the liquid outlet tube is inserted into the interior of the irrigator body and fixedly connected thereto, and the auxiliary tube is inserted into The inside of the liquid outlet pipe is connected with it, an external mounting strip is fixedly installed on the side of the washer body away from the liquid outlet pipe, and an internal mounting rod is slidably connected inside the external mounting strip, a first internal mounting groove is provided inside the washer body and below the liquid outlet pipe, a second internal mounting groove is provided inside the washer body and on one side of the first internal mounting groove, an internal mounting block is slidably connected inside the first internal mounting groove, one end of the internal mounting rod is fixedly connected to the internal mounting block, a second rack is slidably connected inside the second internal mounting groove, the second rack is fixedly connected to the internal mounting block, a third gear is rotatably connected inside the second internal mounting groove, and the third gear is rotatably connected to the second gear. The rack is meshed, the inner rotation of the liquid outlet pipe is connected to the valve plate, the third gear is fixedly connected to the valve plate through the mounting rod, an adjustment structure is arranged on the outer mounting bar, a monitoring structure is arranged inside the liquid storage tank, a valve is arranged inside the flusher body and on the outside of the auxiliary pipe, the adjustment structure comprises a first rack, the first rack is fixedly connected to the inner mounting rod, the first rack is slidably connected to the outer mounting bar, the inner rotation of the outer mounting bar is connected to the first gear, the first gear is meshed with the first rack, a connecting rod is fixedly installed on one side of the first gear, and a second gear is fixedly installed on both sides of the connecting rod away from the first gear, The connecting rod and the second gear are both rotatably connected to the outer mounting bar, and the top of the outer mounting bar is rotatably connected to two arc gears, and the arc gear is rotatably connected to the outer mounting bar through a rotating rod, and a pressure plate is fixedly installed on the side of the arc gear away from the second gear, and one of the second gears is meshed with one of the arc gears, and the inside of the outer mounting bar is rotatably connected to a fourth gear, and the fourth gear is meshed with another second gear, and the side of the fourth gear away from the second gear is meshed with another arc gear, and the arc gear and the fourth gear are meshed and rotated with the second gear by pressing the pressure plate, and are connected to the first gear through a connecting rod, so that the rotation of the second gear drives the rotation of the first gear.

[0007] Optionally, a fixed tube is provided on the top of the liquid storage tank, and the fixed tube is inserted into the interior of the liquid storage tank and slidably connected thereto, a counterweight block is provided inside the liquid storage tank, a water pump is fixedly installed inside the counterweight block, the fixed tube is fixedly connected to the output end of the water pump, the fixed tube is inserted into the interior of the counterweight block and fixedly connected thereto, a water inlet groove is provided on the counterweight block, and the water inlet groove is fixedly connected to the input end of the water pump, a floating block is slidably connected inside the liquid storage tank and on the outside of the fixed tube, limit blocks are fixedly installed on the corresponding two sides of the inner wall of the floating block, and the two limit blocks are slidably connected to the fixed tube, and when the liquid moves downward, the floating block is driven to move, thereby reducing the distance between the floating block and the counterweight block, and the limit blocks set on the floating block make the floating block more stable when moving longitudinally.

[0008] Optionally, the monitoring structure includes a clockwork box and a rotating shaft, a connecting rope is fixedly installed on the outer side of the rotating shaft, the rotating shaft is rotatably connected to the floating block, the internal rotation of the floating block is connected to a screw rod, the outer side of the screw rod is threadedly connected to a slider, the slider is slidably connected to the floating block, the rotating shaft is fixedly connected to the screw rod, a sliding rheostat is arranged inside the floating block, the sliding rheostat is composed of a bracket, a resistance wire, a terminal, a metal rod and a slider, the slider is fixedly connected to the slider, a warning light is fixedly installed on one side of the flusher body, the warning light is electrically connected to the sliding rheostat, the connecting rope is contracted by the action of the clockwork box, and the screw rod is driven to rotate, and at the same time, the slider rotating on the outer side of the screw rod moves laterally, and is fixedly connected to the slider on the sliding rheostat through the slider, thereby driving the slider to move, the farther the slider slides, the greater the resistance and the smaller the current, thereby facilitating the monitoring of the height of the liquid inside the liquid storage tank according to the brightness of the warning light.

[0009] Optionally, a liquid inlet pipe is provided on the top of the flusher body, and the liquid inlet pipe is inserted into the interior of the liquid inlet cavity and connected thereto. A second flange is fixedly installed on the top of the fixed pipe and the liquid inlet pipe. The second flange is provided to facilitate the operation of a water pump to transport the liquid inside the liquid storage tank through the water inlet groove to the interior of the liquid inlet cavity.

[0010] Optionally, a display screen is embedded on one side of the flusher body, the water temperature detector is electrically connected to the display screen, a plurality of guide plates are fixedly installed inside the flusher body and inside the liquid inlet chamber, a plurality of heating tubes pass through the guide plates and are fixedly connected thereto, a connecting tube is provided on the side of the liquid outlet pipe away from the flusher body, a first flange is fixedly installed on the side where the liquid outlet pipe and the connecting tube are close to each other, a plurality of fixing bolts are fixedly installed on the side of one of the first flanges away from the other first flange, a plurality of fixing bolts pass through the two first flanges and are threadedly connected thereto, the water temperature detector cooperates with the display screen to measure the temperature of the heated liquid and provide a prompt, the heating effect of the liquid is improved by the plurality of guide plates, the liquid outlet pipe is connected to the connecting tube by the fixing bolts cooperate with the first flange.

[0011] Optionally, a fixed block is fixedly installed on the outer side of the connecting tube, and a plurality of L-shaped plug blocks are arranged on the top of the fixed block, and the plurality of L-shaped plug blocks all penetrate the fixed block and are slidably connected thereto, a disposable transparent sleeve is sleeved on the outer side of the L-shaped plug block, and the plurality of L-shaped plug blocks are inserted into the interior of the disposable transparent sleeve and are slidably connected thereto, a plurality of return springs are fixedly installed on the side of the L-shaped plug blocks close to the fixed block, and the ends of the plurality of return springs away from the L-shaped plug blocks are fixedly connected to the fixed block, and moving blocks are fixedly installed on the corresponding sides of the plurality of L-shaped plug blocks, and the moving blocks are inserted into the interior of the fixed block and are slidably connected thereto, and the disposable transparent sleeve is sleeved on the outer side of the connecting tube by manually moving the L-shaped plug block, and is inserted into the interior of the disposable transparent sleeve through the L-shaped plug block, and the L-shaped plug block is reset by the action of the return spring, so that the connecting tube is connected to the limit block, thereby reducing the possibility of contact contamination of the liquid outlet of the connecting tube and contamination of the dressing change environment by liquid splashing.

[0012] Optionally, a rubber pad is embedded on the outer side of the external mounting bar, and a controller is embedded on one side of the flusher body. The controller is electrically connected to the valve, water pump, sliding rheostat, heating tube, water temperature detector and display screen. The external mounting bar and the rubber pad cooperate to facilitate the user to hold the device and control the coordinated operation of the equipment on the device through the set controller.

[0013] Optionally, a plurality of guide plates are located on both sides of the liquid inlet cavity and are placed crosswise, and the top of the guide plate is a slope structure.

[0014] A method for adjusting pressure of an adjustable pressure constant temperature wound irrigator comprises the following steps:

[0015] S1. Create a sample library of wound images with different injuries:

[0016] The wound images collected were classified according to the nature of the wound surface (cuts, abrasions, puncture wounds, surgical incisions, etc.), severity classification and trauma time (i.e., the time from injury to the implementation of the current flushing);

[0017] S2. Establish a general pressure judgment model:

[0018] When performing actual measurements, for each object, the wound surface image and pressure annotation are used as samples to carry out training. The model input is the feature image of the wound surface image, and the output is the pressure value.

[0019] S3. Prompt the pressure value:

[0020] When the current actual flushing pressure value is less than the output pressure value, the operator is prompted to increase the pressure; when the current actual flushing pressure value is greater than the output pressure value, the operator is prompted to increase the pressure, thereby improving the effect of wound flushing and shortening the wound recovery time.

[0021] Optionally, automatically prompt whether the pressure is appropriate.

[0022] The present invention provides a pressure-adjustable constant-temperature wound irrigator, which has the following invention features and beneficial effects:

[0023] 1. The adjustable pressure constant temperature wound irrigator can be increased or decreased by pressing different pressure plates with a foot pedal. The first rack moves laterally to drive the inner rod to move, and then the valve plate is driven to rotate by the cooperation of the gear and the rack. The pressure of the liquid transported inside the liquid outlet pipe is adjusted by the rotation of the valve plate, and then the pressure of the output liquid is adjusted by pressing the pressure plate. In addition, by setting two arc gears that can make the inner rod move in opposite directions, the hydraulic pressure can be adjusted more conveniently according to the user's requirements, and the pressure can be maintained in a static state without external force intervention.

[0024] 2. When flushing wounds of different courses and causes, the appropriate pressure value can be selected, and the individual situation of the patient can be fully considered. When the severity of each person's wound is different for the same wound type and the same recovery time, the most suitable pressure flushing can be selected, thereby improving the effect of wound recovery.

[0025] 3. The adjustable pressure constant temperature wound irrigator drives the floating block to move by the downward movement of the liquid, thereby reducing the distance between the floating block and the counterweight block, and realizes liquid level monitoring through the spring and slider structure. At the same time, the constant temperature of the irrigating liquid is ensured by setting water temperature detection and heating. It can also prompt whether the pressure value is appropriate, which is more convenient to use and conducive to wound recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the front cross-section structure of the present invention;

[0028] Figure 3 For the present invention Figure 2 A in the enlarged view;

[0029] Figure 4 For the present invention Figure 2 The enlarged view of point B in the figure;

[0030] Figure 5 For the present invention Figure 2 Enlarged view of point C in

[0031] Figure 6 It is a schematic diagram of the adjustment structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the monitoring structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the local structure of the present invention;

[0034] Fig. 9 It is a cross-sectional view of the flushing device body of the present invention.

[0035] In the figure: 1. flushing device body; 2. liquid inlet chamber; 3. liquid outlet pipe; 4. valve; 5. auxiliary pipe; 6. external mounting strip; 8. mounting inner rod; 12. first rack; 13. first gear; 14. connecting rod; 15. second gear; 16. arc gear; 17. pressing plate; 18. liquid storage tank; 19. floating block; 20. fixing pipe; 21. counterweight; 22. water pump; 23. water inlet tank; 24. connecting rope; 25. spring box; 26. rotating shaft; 27. screw rod; 28. slider; 29. ​​sliding rheostat; 30. warning light; 31. Heating tube; 32. guide plate; 33. liquid inlet pipe; 34. connecting pipe; 35. first flange; 36. limit block; 37. water temperature detector; 38. display screen; 39. rubber pad; 40. fixing block; 41. fixing bolt; 42. second flange; 43. L-shaped plug; 44. return spring; 45. moving block; 46. disposable transparent sleeve; 47. controller; 48. first inner mounting groove; 49. second inner mounting groove; 50. inner mounting block; 51. second rack; 52. third gear; 54. valve plate; 55. fourth gear. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] See also Figures 1 to 9The present invention provides a technical solution: a pressure-adjustable constant-temperature wound irrigator, comprising an irrigator body 1 and a liquid storage tank 18. The irrigator body 1 is provided with a liquid inlet cavity 2. A plurality of heating tubes 31 are fixedly installed inside the irrigator body 1 and located inside the liquid inlet cavity 2. A water temperature detector 37 is fixedly installed on one side of the irrigator body 1. The water temperature detector 37 is inserted into the liquid inlet cavity 2 and fixedly connected thereto. An auxiliary tube 5 is fixedly installed inside the irrigator body 1 and located at the bottom of the liquid inlet cavity 2. A liquid outlet pipe 3 is provided on the side of the irrigator body 1 away from the liquid storage tank 18. The liquid outlet pipe 3 is inserted into the inside of the irrigator body 1 and fixedly connected thereto. The auxiliary tube 5 is inserted into the inside of the liquid outlet pipe 3 and communicated with the liquid outlet pipe 3. An outer mounting strip 6 is fixedly installed on the side of the irrigator body 1 away from the liquid outlet pipe 3. An inner rod 8 is slidably connected to the inner part of the outer mounting strip 6. The inner part of the irrigator body 1 and located inside the liquid storage tank 18 are fixedly connected to the inner part of the liquid storage tank 18. A first inner mounting groove 48 is provided below the liquid outlet pipe 3, and a second inner mounting groove 49 is provided inside the flusher body 1 and on one side of the first inner mounting groove 48. An inner mounting block 50 is slidably connected inside the first inner mounting groove 48. The friction between the first inner mounting groove 48 and the inner mounting block 50 is relatively large, and no relative position movement will occur without the intervention of external force. One end of the inner rod 8 is fixedly connected to the inner mounting block 50, and a second rack 51 is slidably connected inside the second inner mounting groove 49. The second rack 51 is fixedly connected to the inner mounting block 50. A third gear 52 is rotatably connected inside the second inner mounting groove 49, and the third gear 52 meshes with the second rack 51. A valve plate 54 is rotatably connected inside the liquid outlet pipe 3, and the third gear 52 is fixedly connected to the valve plate 54 through the mounting rod. An adjustment structure is provided on the outer mounting bar 6, and a monitoring structure is provided inside the liquid storage tank 18.

[0038] A valve 4 is provided inside the flusher body 1 and outside the auxiliary pipe 5. The regulating structure includes a first rack 12, which is fixedly connected to the inner mounting rod 8, and the first rack 12 is slidably connected to the outer mounting bar 6. The inner part of the outer mounting bar 6 is rotatably connected with a first gear 13, and the first gear 13 is meshed with the first rack 12. A connecting rod 14 is fixedly installed on one side of the first gear 13, and second gears 15 are fixedly installed on the corresponding two sides of the connecting rod 14 away from the first gear 13. The connecting rod 14 and the second gear 15 are both rotatably connected to the outer mounting bar 6. Two arc gears 16 are rotatably connected to the top of the outer mounting bar 6. The arc gear 16 is rotatably connected to the outer mounting bar 6 through a rotating rod, and a pressure plate 17 is fixedly installed on the side of the arc gear 16 away from the second gear 15, one of which is one of the second gears 15. The fourth gear 55 is meshed with one of the circular arc gears 16, and the internal rotation of the outer mounting bar 6 is connected with the fourth gear 55, which is meshed with another second gear 15. The side of the fourth gear 55 away from the second gear 15 is meshed with another circular arc gear 16. The circular arc gear 16 is meshed and rotated with the second gear 15 by pressing the pressure plate 17 by foot, and is connected to the first gear 13 through the connecting rod 14, so that the second gear 15 rotates to drive the first gear 13 to rotate, and further the first gear 13 is meshed with the first rack 12 to drive the inner mounting block 50 to move, so that the two pressure plates 17 can be used to interfere with each other, thereby driving the left and right movement of the installed inner rod 8, and then the movement of the second rack 51 and the rotation of the valve plate 54 can be driven to adjust whether the equipment is opened and the opening angle, so as to achieve the purpose of adjusting the water pressure.

[0039] A fixed pipe 20 is provided on the top of the liquid storage tank 18, and the fixed pipe 20 is inserted into the interior of the liquid storage tank 18 and slidably connected thereto, a counterweight 21 is provided inside the liquid storage tank 18, and a water pump 22 is fixedly installed inside the counterweight 21, and the fixed pipe 20 is fixedly connected to the output end of the water pump 22, and the fixed pipe 20 is inserted into the interior of the counterweight 21 and fixedly connected thereto, and a water inlet groove 23 is provided on the counterweight 21, and the water inlet groove 23 is fixedly connected to the input end of the water pump 22, and a floating block 19 is slidably connected inside the liquid storage tank 18 and outside the fixed pipe 20, and limit blocks 36 are fixedly installed on the corresponding two sides of the inner wall of the floating block 19, and the two limit blocks 36 are slidably connected to the fixed pipe 20, and when the liquid moves downward, the floating block 19 is driven to move, and then the distance between the floating block 19 and the counterweight 21 is reduced, and the limit blocks 36 provided on the floating block 19 make the floating block 19 more stable when moving longitudinally, and at the same time reduce the possibility of the connecting rope 24 and the fixed pipe 20 being entangled.

[0040] The monitoring structure includes a spring box 25 and a rotating shaft 26. A connecting rope 24 is fixedly installed on the outer side of the rotating shaft 26. The rotating shaft 26 is rotatably connected to the floating block 19. The floating block 19 is internally rotatably connected to a screw rod 27. The outer side of the screw rod 27 is threadedly connected to a slider 28. The slider 28 is slidably connected to the floating block 19. The rotating shaft 26 is fixedly connected to the screw rod 27. A sliding rheostat 29 is arranged inside the floating block 19. The sliding rheostat 29 is composed of a bracket, a resistance wire, a terminal, a metal rod and a slide. The slider 28 is fixedly connected to the slide. The flushing device itself A warning light 30 is fixedly installed on one side of the body 1. The warning light 30 is electrically connected to the sliding rheostat 29. The connecting rope 24 is contracted through the action of the spring box 25, and the screw rod 27 is driven to rotate. At the same time, the slider 28 rotating on the outside of the screw rod 27 moves laterally. The slider 28 is fixedly connected to the slider on the sliding rheostat 29, thereby driving the slider to move. The farther the slider slides, the greater the resistance and the smaller the current. This makes it easier to monitor the height of the liquid inside the liquid storage tank 18 according to the brightness of the warning light 30, and is more convenient to use.

[0041] A liquid inlet pipe 33 is provided on the top of the flusher body 1, and the liquid inlet pipe 33 is inserted into the interior of the liquid inlet chamber 2 and communicated therewith. A second flange 42 is fixedly installed on the top of the fixed pipe 20 and the liquid inlet pipe 33. Through the second flange 42, it is convenient to operate the water pump 22 to transport the liquid inside the liquid storage tank 18 to the interior of the liquid inlet chamber 2 through the water inlet groove 23.

[0042] A display screen 38 is embedded on one side of the flusher body 1, and a water temperature detector 37 is electrically connected to the display screen 38. A plurality of guide plates 32 are fixedly installed inside the flusher body 1 and inside the liquid inlet chamber 2, and a plurality of heating tubes 31 pass through the guide plates 32 and are fixedly connected thereto. A connecting tube 34 is provided on the side of the liquid outlet pipe 3 away from the flusher body 1, and a first flange 35 is fixedly installed on the side where the liquid outlet pipe 3 and the connecting tube 34 are close to each other, wherein a plurality of fixing bolts 41 are fixedly installed on the side of one first flange 35 away from the other first flange 35, and a plurality of fixing bolts 41 pass through the two first flanges 35 and are threadedly connected thereto. The water temperature detector 37 cooperates with the display screen 38 to measure the temperature of the heated liquid and provide a prompt. The plurality of guide plates 32 are provided to improve the heating effect of the liquid. The fixing bolts 41 cooperate with the first flange 35 to connect the liquid outlet pipe 3 and the connecting tube 34.

[0043] A fixed block 40 is fixedly installed on the outside of the connecting tube 34, and a plurality of L-shaped plug blocks 43 are arranged on the top of the fixed block 40. The plurality of L-shaped plug blocks 43 all penetrate the fixed block 40 and are slidably connected thereto. A disposable transparent sleeve 46 is sleeved on the outside of the L-shaped plug block 43. The plurality of L-shaped plug blocks 43 are inserted into the inside of the disposable transparent sleeve 46 and are slidably connected thereto. A plurality of return springs 44 are fixedly installed on one side of the plurality of L-shaped plug blocks 43 close to the fixed block 40, and the ends of the plurality of return springs 44 away from the L-shaped plug blocks 43 are fixed to the fixed block 40. The L-shaped plug-in blocks 43 are connected, and the corresponding two sides thereof are fixedly installed with movable blocks 45. The movable blocks 45 are inserted into the interior of the fixed block 40 and are slidably connected thereto. The disposable transparent sleeve 46 is sleeved on the outside of the connecting tube 34 by manually moving the L-shaped plug-in blocks 43, and is inserted into the interior of the disposable transparent sleeve 46 through the L-shaped plug-in blocks 43. The L-shaped plug-in blocks 43 are reset by the reset spring 44, so that the connecting tube 34 is connected to the limit block 36, thereby reducing the possibility of contact contamination of the liquid outlet of the connecting tube 34 and contamination of the dressing environment by liquid splashing.

[0044] A rubber pad 39 is embedded on the outer side of the outer mounting strip 6, and a controller 47 is embedded on one side of the flusher body 1. The controller 47 is electrically connected to the valve 4, the water pump 22, the sliding rheostat 29, the heating tube 31, the water temperature detector 37 and the display screen 38. The outer mounting strip 6 and the rubber pad 39 cooperate to facilitate the user to hold the device and control the coordinated operation of the equipment on the device through the set controller 47.

[0045] (I) Create a wound image sample library with different injuries

[0046] The collected wound images are classified according to the nature of the wound surface (cuts, abrasions, puncture wounds, surgical incisions, etc.), severity grade and trauma time (i.e. the time from injury to the implementation of the current flushing).

[0047] The images with the same wound properties and equal wound time are merged into the same group to obtain several groups, denoted as Q j,k ,j=1,2,…,J,k=1,2,…,max(K1,K2,…,K J ), J represents the number of different wound types, K j Represents the trauma time of the jth type of wound.

[0048] Experienced doctors annotate data for each group separately: for each image in the group, the severity is graded and annotated according to clinical experience, and the different flushing pressure values ​​that should be used are labeled. This can obtain multiple groups of positive samples with different wound types and different trauma times. At the same time, negative samples should also be made based on wound images that do not meet the flushing conditions. In this way, different sample libraries are established for different wound surface properties and different trauma times.

[0049] For example, for images of anal fistula surgery wounds taken 1 week after surgery, the corresponding flushing pressure values ​​that should be used are annotated according to the severity of the wounds in different images (the severity of wounds in different people with the same surgery and the same recovery time varies greatly), thus forming a group of positive samples. Similarly, the above annotations can be performed on images of anal fistula surgery wounds taken 2 weeks after surgery to form another group of positive samples.

[0050] The above-mentioned multiple groups of samples are used to train the following models respectively, and pressure judgment models for different wound properties and different trauma times are obtained.

[0051] (II) Establishing a general stress judgment model

[0052] In actual measurement, for each group Q j,k , using the samples, namely wound surface images and pressure annotations, to implement training. The model input is the feature image of the wound surface image, and the output is the pressure value.

[0053] The process of obtaining the characteristic image of the wound surface image is as follows:

[0054] Define Features Window

[0055]

[0056] According to the feature window, the feature image is obtained as follows.

[0057]

[0058] Calculate the feature image according to formula 1, is the original wound image, u, v are image coordinates, x, y are window coordinates. * indicates a two-dimensional convolution operation.

[0059] The four window images highlight the characteristic responses in different spatial orientations, and then generate four feature images. The features in each orientation are linearly separated, which helps to improve the model's recognition performance for wound images.

[0060] The four feature images are input into the pattern recognition model for training. The model definition and calculation method are as follows.

[0061]

[0062] Formula 2 represents four convolutional layers, which perform convolution feature extraction on four feature images respectively to obtain four convolutional layer outputs P i1 ,i=1,2,3,4,ω1 is the convolution kernel, x,y are the convolution kernel coordinates, and β1 is the linear intercept.

[0063] By performing shared convolution kernel feature extraction on the four feature images, the convolution kernel can learn the feature morphology with the highest response, thereby identifying the local features of the wound image.

[0064] In the above formula, σ represents a nonlinear activation function.

[0065]

[0066] Compared with the classic sigmoid function, this activation function is more robust to local noise and can more accurately identify similar but essentially different wounds.

[0067] Furthermore, the calculation is as follows.

[0068]

[0069] P2 is the local maximum of the four convolutional layers output in the previous step. Through this step, local features with larger responses are further extracted.

[0070] Furthermore, the calculation is as follows.

[0071]

[0072] In this step, the local features of the previous step are mapped to a feature vector P3 in a fully connected manner. The mapping is defined by ξ3 and describes the global features of the input feature image. β2 is the linear intercept.

[0073] Finally, the output is calculated as follows.

[0074]

[0075] The output is the global feature of the previous step, which is output as Z through the fully connected mapping ξ4. Each dimension p of the output Z corresponds to a pressure value. e is a natural exponential function.

[0076] For the above model, define the training sample output The p value of a certain dimension of takes 1 if and only if this pressure value is adopted, and the p values ​​of other dimensions take 0. The BP algorithm is used to iteratively calculate the linear parameters of each layer of the neural network. The cost function is defined as:

[0077]

[0078] Where Z is the model output value, is the output value of the training sample.

[0079] (III) Prompt the pressure value

[0080] When the current actual flushing pressure value is less than the pressure value output by the algorithm, the operator is prompted to increase the pressure; when the current actual flushing pressure value is greater than the pressure value output by the algorithm, the operator is prompted to increase the pressure, thereby improving the effect of wound flushing and shortening the wound recovery time.

[0081] In summary, when the adjustable pressure constant temperature wound irrigator is in use, the second flange 42 provided on one side of the fixed tube 20 and the liquid inlet tube 33 facilitates the operation of the water pump 22 to transport the liquid inside the liquid storage tank 18 to the inside of the liquid inlet cavity 2 through the water inlet groove 23, and further controls the valve 4 to make the liquid pass through the auxiliary tube 5 and the liquid outlet tube 3, and then output through the connecting tube 34 to irrigate the user's wound.

[0082] The liquid inside the irrigator body 1 is heated by a plurality of heating tubes 31 arranged inside the irrigator body 1, and the heating effect of the liquid is improved by a plurality of guide plates 32. At the same time, a water temperature detector 37 is arranged in cooperation with a display screen 38 to measure the temperature of the heated liquid, so that the output liquid temperature is maintained within the optimal temperature range, and serves as a reminder to avoid damage to the wound caused by excessively high liquid temperature.

[0083] The outer mounting strip 6 and the rubber pad 39 cooperate to facilitate the user to use the device, and the user can press the pressure plate 17 by foot, so that the arc gear 16 meshes with the second gear 15 and rotates, and is connected to the first gear 13 through the connecting rod 14, so that the second gear 15 rotates to drive the first gear 13 to rotate, and further the first gear 13 meshes with the first rack 12, so that the first rack 12 moves laterally to drive the installation inner rod 8 to move. When the pressure plate 17 on one side is stepped on, the arc gear 16 directly meshed with the second gear 15 will drive the first gear 13 to rotate, so that the installation inner rod 8 moves away from the flushing device body 1. One side moves; and when the side pressure plate 17 on the other side is stepped on, the arc gear 16 meshing with the fourth gear 55 will drive the first gear 13 to rotate in the opposite direction, so that the installed inner rod 8 moves toward the side close to the flusher body 1, and then the installed inner rod 8 drives the inner mounting block 50 to move, and the movement of the inner mounting block 50 drives the second rack 51 to move, and by utilizing the meshing of the second rack 51 and the third gear 52, the valve plate 54 can be driven to rotate forward and reverse inside the liquid outlet pipe 3, so that the pressure of the output liquid can be adjusted by pressing the pressure plate 17.

[0084] The counterweight 21 arranged inside the liquid storage tank 18 drives the fixed pipe 20 to contact the bottom of the inner wall of the liquid storage tank 18, and the water inlet groove 23 is provided to cooperate with the water pump 22 to transport the liquid inside the liquid storage tank 18. At the same time, a floating block 19 sliding on the outside of the fixed pipe 20 is provided, and a spring box 25 is arranged inside the floating block 19. The floating block 19 floats on the liquid and is fixedly connected to the counterweight 21 through a connecting rope 24 arranged outside the rotating shaft 26. When the liquid moves downward, the floating block 19 is driven to move, and then the distance between the floating block 19 and the counterweight 21 is reduced. The connecting rope 24 is contracted by the spring box 25, and the screw rod 27 is driven to rotate. At the same time, the slider 28 rotating outside the screw rod 27 moves horizontally, and the slider 28 is fixedly connected to the slider on the sliding rheostat 29, thereby driving the slider to move. The farther the slider slides, the greater the resistance and the smaller the current, so that it is convenient to monitor the height of the liquid inside the liquid storage tank 18 according to the brightness of the warning light 30, which is more convenient to use.

[0085] The L-shaped plug block 43 is manually moved to allow the disposable transparent sleeve 46 to be sleeved on the outside of the connecting tube 34, and the L-shaped plug block 43 is inserted into the disposable transparent sleeve 46, and the L-shaped plug block 43 is reset by the reset spring 44, so that the connecting tube 34 is connected to the limit block 36, thereby reducing the possibility of contact contamination of the liquid outlet of the connecting tube 34 and liquid splashing to contaminate the dressing change environment.

[0086] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wound irrigator with adjustable pressure and constant temperature, comprising an irrigator body (1), a first gear (13), and a liquid storage tank (18), characterized in that: The flushing device body (1) is provided with a liquid inlet cavity (2), a plurality of heating tubes (31) are fixedly installed inside the flushing device body (1) and located inside the liquid inlet cavity (2), a water temperature detector (37) is fixedly installed on one side of the flushing device body (1), an auxiliary tube (5) is fixedly installed inside the flushing device body (1) and located at the bottom of the liquid inlet cavity (2), a liquid outlet tube (3) is provided on the side of the flushing device body (1) away from the liquid storage tank (18), and the auxiliary tube (5) is inserted into the inside of the liquid outlet tube (3) and connected thereto. The flushing device body (1) is fixedly mounted with an outer mounting strip (6) on one side away from the liquid outlet pipe (3), and an inner mounting rod (8) is slidably connected to the inside of the outer mounting strip (6). A first inner mounting groove (48) and a second inner mounting groove (49) that are interconnected are provided inside the flushing device body (1) and below the liquid outlet pipe (3). An inner mounting block (50) and a second rack (51) are slidably connected to the inside of the first inner mounting groove (48) and the second inner mounting groove (49) in sequence. The first inner mounting groove (48) and the second inner mounting groove (49) are fixedly mounted with the valve plate (54). The third gear (52) is meshed with the second rack (51); an adjustment structure is provided on the outer mounting bar (6); one end of the inner mounting rod (8) is fixedly connected to the inner mounting block (50), and the other end is connected to the first rack (12); the adjustment structure comprises a first rack (12); a first gear (13) is rotatably connected inside the outer mounting bar (6); the first gear (13) is meshed with the first rack (12); and second gears (15) are fixedly installed on both sides of a connecting rod (14) fixedly connected to the first gear (13). The top of the outer mounting bar (6) is rotatably connected to two circular arc gears (16), a pressure plate (17) is fixedly installed on the side of the circular arc gear (16) away from the second gear (15), one of the second gears (15) is meshed with one of the circular arc gears (16), the inside of the outer mounting bar (6) is rotatably connected to a fourth gear (55), the fourth gear (55) is meshed with another second gear (15), and the side of the fourth gear (55) away from the second gear (15) is meshed with another circular arc gear (16).

2. The adjustable pressure constant temperature wound irrigator according to claim 1, characterized in that: A fixed pipe (20) is arranged on the top of the liquid storage tank (18), and the fixed pipe (20) is inserted into the interior of the liquid storage tank (18) and is slidably connected thereto. A counterweight (21) is arranged inside the liquid storage tank (18), and a water pump (22) is fixedly installed inside the counterweight (21). The fixed pipe (20) is fixedly connected to the output end of the water pump (22). The fixed pipe (20) is inserted into the interior of the counterweight (21) and is fixedly connected thereto. A water inlet groove (23) is provided on the counterweight (21), and the water inlet groove (23) is fixedly connected to the input end of the water pump (22). A floating block (19) is slidably connected inside the liquid storage tank (18) and located on the outside of the fixed pipe (20). Limiting blocks (36) are fixedly installed on the corresponding two sides of the inner wall of the floating block (19), and the two limiting blocks (36) are slidably connected to the fixed pipe (20).

3. The adjustable pressure constant temperature wound irrigator according to claim 1, characterized in that: A monitoring structure is arranged inside the liquid storage tank (18), and the monitoring structure comprises a spring box (25) and a rotating shaft (26). A connecting rope (24) is fixedly installed on the outer side of the rotating shaft (26). The rotating shaft (26) is rotatably connected to a floating block (19). A screw rod (27) is rotatably connected inside the floating block (19). A slider (28) is threadedly connected to the outer side of the screw rod (27). The slider (28) is slidably connected to the floating block (19). The rotating shaft (26) is fixedly connected to the screw rod (27). A sliding rheostat (29) is arranged inside the floating block (19). The sliding rheostat (29) is composed of a bracket, a resistance wire, a terminal, a metal rod and a sliding plate. The slider (28) is fixedly connected to the sliding plate. A warning light (30) is fixedly installed on one side of the flushing device body (1). The warning light (30) is electrically connected to the sliding rheostat (29).

4. The adjustable pressure constant temperature wound irrigator according to claim 2, characterized in that: A liquid inlet pipe (33) is arranged on the top of the washer body (1), and the liquid inlet pipe (33) is inserted into the interior of the liquid inlet cavity (2) and communicated therewith, and a second flange (42) is fixedly mounted on the top of both the fixed pipe (20) and the liquid inlet pipe (33).

5. The adjustable pressure constant temperature wound irrigator according to claim 1, characterized in that: A display screen (38) is embedded on one side of the flushing device body (1), and the water temperature detector (37) is electrically connected to the display screen (38). A plurality of guide plates (32) are fixedly installed inside the flushing device body (1) and inside the liquid inlet chamber (2). The plurality of heating tubes (31) all penetrate the guide plates (32) and are fixedly connected thereto. A connecting tube (34) is provided on the side of the liquid outlet pipe (3) away from the flushing device body (1). A first flange (35) is fixedly installed on the side of the liquid outlet pipe (3) and the connecting tube (34) close to each other. A plurality of fixing bolts (41) are fixedly installed on the side of one of the first flanges (35) away from the other first flange (35), and the plurality of fixing bolts (41) all penetrate the two first flanges (35) and are threadedly connected thereto.

6. The adjustable pressure constant temperature wound irrigator according to claim 5, characterized in that: A fixed block (40) is fixedly installed on the outer side of the connecting tube (34), and a plurality of L-shaped plug blocks (43) are arranged on the top of the fixed block (40). The plurality of L-shaped plug blocks (43) all penetrate the fixed block (40) and are slidably connected thereto. A disposable transparent sleeve (46) is sleeved on the outer side of the L-shaped plug block (43), and the plurality of L-shaped plug blocks (43) are inserted into the inside of the disposable transparent sleeve (46) and are slidably connected thereto. A plurality of return springs (44) are fixedly installed on one side of the plurality of L-shaped plug blocks (43) close to the fixed block (40), and the ends of the plurality of return springs (44) away from the L-shaped plug blocks (43) are fixedly connected to the fixed block (40). A movable block (45) is fixedly installed on the corresponding two sides of the plurality of L-shaped plug blocks (43), and the movable block (45) is inserted into the inside of the fixed block (40) and is slidably connected thereto.

7. The adjustable pressure constant temperature wound irrigator according to claim 1, characterized in that: The outer side of the outer mounting strip (6) is inlaid with a rubber pad (39), and one side of the washer body (1) is inlaid with a controller (47), and the controller (47) is electrically connected to the valve (4), the water pump (22), the sliding rheostat (29), the heating tube (31), the water temperature detector (37) and the display screen (38).

8. The adjustable pressure constant temperature wound irrigator according to claim 5, characterized in that: A plurality of guide plates (32) are located on both sides of the liquid inlet chamber (2) and are placed crosswise, and the top of the guide plates (32) is an inclined structure.

9. The method for adjusting pressure of the adjustable pressure constant temperature wound irrigator according to claim 1, characterized in that: The following steps are involved: S1. Create a sample library of wound images with different injuries: Classify the collected wound images according to the nature of the wound surface, severity grade and trauma time; S2. Establish a general pressure judgment model: When performing actual measurements, for each object, the wound surface image and pressure annotation are used as samples to carry out training. The model input is the feature image of the wound surface image, and the output is the pressure value. S3. Prompt the pressure value: When the current actual flushing pressure value is less than the output pressure value, the operator is prompted to increase the pressure; when the current actual flushing pressure value is greater than the output pressure value, the operator is prompted to increase the pressure, thereby improving the effect of wound flushing and shortening the wound recovery time.

10. The method for adjusting pressure of the pressure-adjustable constant-temperature wound irrigator according to claim 9, characterized in that: Automatically prompt whether the pressure is appropriate.

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