Wound cleaning device for traumatic orthopedics department

Abstract

The invention provides a wound cleaning device for the traumatic orthopedics department. The wound cleaning device is composed of a liquid supply main machine and a spray gun. According to the innovative integration of the spray gun, 1, an angle adjusting mechanism drives transmission rods distributed in the circumferential direction through a rocker deflection wheel disc, and a steel wire pulls a magnetic repulsion lantern ring set to achieve multi-direction bending of the front end of a hose; according to the gas-liquid mixing mechanism, when a wheel disc is pressed, a metal pipe axially moves, the conical surface of an adjusting ring pushes a wedge-shaped block to radially extrude a hose to form a Venturi structure, and a gas circuit is synchronously opened to suck air to generate bubbles; and 3, a safety locking assembly, wherein a gas path is forcibly closed when a positioning pin is inserted into a baffle ring pin hole. The device has the advantages that a mechanical dual-mode safe switching mechanism is created for the first time, bubbles are thoroughly isolated during wound flushing, the embolism risk is avoided, and the cleaning effect is enhanced through the bubbles during skin flushing; and the problems of unstable pressure, pollution splashing and complicated operation of traditional equipment are solved through full-process single-hand operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, in particular to a wound cleaning device for trauma orthopedics. Background Art

[0002] Current clinical debridement in orthopedic trauma relies primarily on manual irrigation with syringes or simple squeeze bottles, which present significant drawbacks. Manual operation results in uncontrollable irrigation pressure (pressures below 4 psi are ineffective in removing deep contaminants, while pressures above 15 psi can easily damage new tissue). Splashing of contaminated liquid can easily lead to cross-infection and increase the burden of postoperative cleanup. The procedure requires two hands, and adjusting the irrigation angle is difficult, resulting in incomplete deep cleaning. Traditional mechanical devices cannot safely apply bubbles—directly injecting bubbles into a wound carries the risk of fatal gas embolism, and existing technologies lack a reliable mechanical bubble / pure liquid switching mechanism. Summary of the Invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a trauma orthopedic wound cleaning device, which can flush the wound with bubbles and flushing liquid to improve the cleaning effect.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A trauma orthopedic wound cleaning device includes a liquid supply main unit and a spray gun, wherein the spray gun is connected to the liquid supply main unit through a liquid supply pipe, and the spray gun includes: The shell has a handle at the bottom for medical personnel to hold; The water outlet pipe assembly includes a hose and a metal pipe; the metal pipe is slidably installed in the shell, and the front end extends to the outside of the shell; the hose is fixed in the metal pipe, the front end extends to the outside of the metal pipe, and the rear end is connected to the liquid supply pipe; The angle adjustment mechanism includes a flexible head, a transmission assembly, and a control assembly; the flexible head is sleeved and fixed on the front end of the hose; the rear end of the flexible head is fixedly connected to the metal tube; the control assembly is installed on the end of the metal tube away from the flexible head; the transmission assembly is slidably installed on the metal tube, one end of which is connected to the flexible head and the other end is connected to the control assembly; multiple transmission assemblies are configured and distributed in a circular array centered on the axis of the metal tube; shaking the control assembly drives the transmission assembly to move, which drives the flexible head to generate bending deformation through the transmission assembly, and the flexible head drives the front end of the hose to bend; The gas-liquid mixing mechanism is sleeved and installed on the outside of the metal tube and is arranged against the outer side of the hose; pressing the control component toward the shell changes the liquid flow rate in the hose through the gas-liquid mixing mechanism, so that air enters the hose and is sprayed out together with the flushing liquid.

[0005] Preferably, a guide block is fixedly provided in the shell, and a guide hole adapted to the metal tube is provided on the guide block, and the metal tube can be slidably installed in the guide hole; a retaining ring is fixedly provided on the outer side of the metal tube away from the flexible head at one end; a first spring is sleeved on the metal tube, one end of the first spring abuts on the guide block, and the other end abuts on the retaining ring; a positioning pin is movably provided on the shell, and a pin hole adapted to the positioning pin is provided on the retaining ring, one end of the positioning pin extends to the outside of the shell, and the other end is inserted in the pin hole; when the positioning pin is inserted in the pin hole, the metal tube is fixed in the shell; when the positioning pin is pulled out of the pin hole, the control component is pressed, the metal tube moves along the axial direction of the guide hole, the first spring is squeezed and contracted, and after the control component is released, the first spring pushes the metal tube to reset.

[0006] Preferably, a push-type control valve is installed on the housing; the hose and the liquid supply host are connected through the push-type control valve.

[0007] Preferably, a pipe hole is provided on one end of the metal tube close to the control assembly, and one end of the hose extends from the inside of the metal tube through the pipe hole to the outside of the metal tube and is connected to the push-type control valve.

[0008] Preferably, the transmission assembly includes a transmission rod and a steel wire; the metal tube is provided with a transmission hole for accommodating the transmission rod, the axis of the transmission hole being parallel to the axis of the metal tube; the transmission rod is slidably mounted in the transmission hole, with one end close to the control assembly extending to the outside of the metal tube; one end of the steel wire is fixed to the end of the transmission rod away from the control assembly; The control assembly includes a wheel disc, a rocker, a plunger, an extension rod and a joint bearing; the rocker is fixed to the wheel disc; the plunger is fixed to the end of the metal tube away from the flexible head; the joint bearing is installed on the wheel disc; one end of the extension rod is fixed to the plunger, and the other end is installed in the joint bearing; the axes of the plunger, wheel disc, rocker and metal tube coincide with each other; an elbow is integrally provided on the end of the transmission rod close to the wheel disc, and the elbow extends in a direction away from the axis of the metal tube; the elbow abuts one side of the wheel disc; a second spring is sleeved on the transmission rod, and a blind hole for accommodating the second spring is provided on the metal tube; the second spring is placed in the blind hole, one end of which abuts on the metal tube, and the other end is fixedly connected to the transmission rod, and the second spring pushes the transmission rod in the direction toward the wheel disc; The flexible head includes multiple rings; the rings are fixed on the hose; the multiple rings are arranged parallel to each other and at intervals; the rings are provided with multiple threading holes, and the multiple threading holes correspond to multiple steel wires. Wear-resistant bushings adapted to the steel wires are provided in the threading holes, and the steel wires can slide through the wear-resistant bushings; multiple magnet rings are fixedly provided on the end surface of the ring corresponding to the multiple threading holes, and the axes of the magnet rings and the axes of the threading holes coincide with each other; the corresponding magnet rings on two adjacent rings magnetically repel each other; one end of the steel wire away from the transmission rod and one end of the metal tube away from the control component are fixedly connected to the two rings at both ends respectively.

[0009] Preferably, the gas-liquid mixing mechanism includes an air valve and a diameter regulator; the air valve is sleeved on the outside of the metal tube; the air valve includes an annular valve body and a support part; the support part is fixed on one side of the annular valve body and is fixedly connected to the outer shell; an annular air chamber is provided inside the annular valve body; a first air hole is provided on the inner side of the annular valve body, and a second air hole is provided on the outer side, and the first air hole and the second air hole are connected to the annular air chamber; a sealing ring is fixedly provided on the inner side surface of the annular valve body away from the flexible head, and the inner side surface of the sealing ring is in friction contact with the outer side surface of the metal tube; the diameter regulator includes an adjusting ring and a plurality of extrusion components; the adjusting ring is sleeved on the outside of the metal tube and is fixedly connected to the outer shell; the air valve is located on the side of the adjusting ring close to the flexible head; the inner diameter of the adjusting ring gradually increases from the end close to the flexible head to the end away from the flexible head; a plurality of extrusion components are distributed in a circular array with the axis of the metal tube as the center; the extrusion component is located on the side of the adjusting ring away from the flexible head; the extrusion component includes a wedge block, a slide rod, a third spring and a trapezoidal pressure block; a sliding hole adapted for use with the sliding rod is provided on the metal tube; the sliding rod can be slidably installed in the sliding hole, one end extending into the inside of the metal tube and the other end extending out of the metal tube; the extended axis of the sliding rod passes perpendicularly through the axis of the metal tube; the trapezoidal pressure block is placed between the metal tube and the hose and abuts against the outer surface of the hose; the width of the trapezoidal pressure block gradually increases from one end close to the hose to the end close to the metal tube; a wedge block is placed on the outside of the metal tube and fixedly connected to the sliding rod; a spring is placed on the outside of the metal tube, sleeved on the sliding rod, one end abuts against the wedge block, and the other end abuts against the metal tube; the thickness of the wedge block gradually decreases from one end close to the adjusting ring to the other end; the outer side surface of the wedge block is provided with a guide inclined surface adapted to the inner side surface of the adjusting ring, and slides and fits against the inner side surface of the adjusting ring through the guide inclined surface; a third air hole corresponding to the first air hole is provided on the metal tube; the outside of the hose is connected to an air inlet pipe, and the front end of the air inlet pipe is fixed in the third air hole; the air inlet pipe is located on one side of the trapezoidal pressure block.

[0010] Preferably, an air intake channel is provided on the housing; and a filter is fixedly provided on the air intake channel.

[0011] Preferably, there are 8 transmission assemblies.

[0012] Preferably, a fourth spring is sleeved on the positioning pin; the fourth spring is located inside the shell, with one end abutting against the shell and the other end fixedly connected to the positioning pin.

[0013] Preferably, the control assembly further comprises a protective sleeve; one end of the protective sleeve is fixedly connected to the wheel disc, and the other end is fixedly connected to the housing; the transmission rod is located inside the protective sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Through a locking mechanism involving a positioning pin and retaining ring, linked to the air valve, strict bubble / liquid isolation is achieved purely mechanically. In wound mode, a sealing ring blocks the third air hole, completely eliminating the risk of gas embolism. In skin mode, a Venturi structure generates bubbles to enhance surface contamination removal. A trapezoidal pressure block deforms the flexible hose to form an adaptive Venturi tube, ensuring stable pressure during bubble generation. A spring return system ensures constant pressure output in wound mode. When held one-handed, the thumb simultaneously controls the joystick (angle adjustment) and the wheel (mode switching), streamlining operation. The mutually exclusive magnetic ring design reduces bending resistance of the ring assembly, enhancing control sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the structure of the spray gun in the present invention; Figure 3 FIG. 1 is a diagram showing the internal structure of the spray gun of the present invention; Figure 4 for Figure 3 A partial enlarged view of point A in the middle; Figure 5 for Figure 3 A partial enlarged view of point B in the middle; Figure 6 for Figure 3 A partial enlarged view of point C in the middle; Figure 7 for Figure 3 A partial enlarged view of point D in the middle; Figure 8 for Figure 3 A partial enlarged view of point E in the middle; Figure 9 Schematic diagram of the structure of the water outlet pipe assembly, angle adjustment mechanism and gas-liquid mixing mechanism in the present invention; Figure 10 Schematic diagram of the structure of the roulette wheel in the present invention; Figure 11 Schematic diagram of the structure of the gas valve in the present invention; Figure 12 Schematic diagram of the structure of the metal tube in the present invention; Figure 13Schematic diagram of the structure of the hose in the present invention; Figure 14 Schematic diagram of the structure of the adjustment ring in the present invention; Figure 15 Schematic diagram of the structure of the extrusion component in the present invention; Figure 16 Schematic diagram of the structure of the transmission rod in the present invention.

[0016] in: 1. Liquid supply unit; 2. Spray gun; 3. Filter; 4. Collar; 5. Hose; 6. Positioning pin; 7. Protective cover; 8. Wheel; 9. Housing; 10. Handle; 11. Push-type control valve; 12. Guide block; 13. Steel wire; 14. Wear-resistant bushing; 15. Magnet ring; 16. Metal pipe; 17. Support; 18. First air hole; 19. Annular valve body; 20. Second air hole; 21. Annular air chamber; 22. Sealing Sealing ring; 23. Inlet pipe; 24. Trapezoidal pressure block; 25. Adjusting ring; 26. Third spring; 27. Wedge block; 28. Sliding rod; 29. ​​Retaining ring; 30. First spring; 31. Fourth spring; 32. Second spring; 33. Transmission rod; 34. Elbow; 35. Rocker; 36. Spherical bearing; 37. Extension rod; 38. Plunger; 39. Bellows; 40. Sliding hole; 41. Third air hole; 42. Transmission hole. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figures 1 to 16 As shown, a trauma orthopedic wound cleaning device includes a liquid supply main unit 1 and a spray gun 2. The spray gun 2 is connected to the liquid supply main unit 1 through a liquid supply pipe. The liquid supply main unit 1 is an existing device used to pump flushing liquid to the spray gun 2. The spray gun 2 includes: The housing 9 has a handle 10 at the bottom for medical personnel to hold; The water outlet pipe assembly includes a hose 5 and a metal pipe 16; the metal pipe 16 is slidably installed in the housing 9, and the front end extends to the outside of the housing 9; the hose 5 is fixed in the metal pipe 16, the front end extends to the outside of the metal pipe 16, and the rear end is connected to the liquid supply pipe; The angle adjustment mechanism includes a flexible head, a transmission assembly, and a control assembly; the flexible head is sleeved and fixed to the front end of the hose 5; the rear end of the flexible head is fixedly connected to the metal tube 16; the control assembly is mounted on the end of the metal tube 16 away from the flexible head; the transmission assembly is slidably mounted on the metal tube 16, with one end connected to the flexible head and the other end connected to the control assembly; multiple transmission assemblies are configured and distributed in a circular array centered on the axis of the metal tube 16; the shaking control assembly drives the transmission assembly to move, which drives the flexible head to generate bending deformation through the transmission assembly, and the flexible head drives the front end of the hose 5 to bend. The gas-liquid mixing mechanism is sleeved onto the exterior of the metal tube 16 and abuts the outer surface of the hose 5. Pressing the control assembly toward the housing 9 modulates the liquid flow rate within the hose 5 through the gas-liquid mixing mechanism, allowing air to enter the hose 5 and be ejected along with the rinsing liquid. Foam is more viscous than liquid and can better cover uneven skin surfaces (such as around hair, in wrinkles, and at pores), reducing liquid waste caused by runoff and improving detergent utilization. Foam adheres to the skin longer than water, prolonging the interaction between the disinfectant or detergent and contaminants / microorganisms, potentially enhancing the effectiveness of chemical cleaning (if the rinsing liquid contains antimicrobial ingredients). The foam's microstructure may encapsulate tiny particulate contaminants (such as dust and grit) through surface tension. The weak shear force generated when the foam bursts may help loosen loosely adhered contaminants. Foam is less likely to splash than high-pressure water, reducing the risk of contamination to the operating environment and medical personnel.

[0019] To irrigate the wound, the control assembly is pressed, and air is introduced into the hose 5 via the gas-liquid mixing mechanism. Air is then ejected along with the irrigating liquid in the hose 5, enhancing the skin irrigating effect through a combination of air bubbles and irrigating liquid. To irrigate the wound internally, the control assembly is released, closing the gas-liquid mixing mechanism. Only the irrigating liquid is used to irrigate the wound tissue. The irrigating angle can be adjusted by shaking the control assembly to deflect the flexible head.

[0020] In this embodiment, a guide block 12 is fixedly provided in the housing 9, and a guide hole adapted to the metal tube 16 is provided on the guide block 12, and the metal tube 16 is slidably installed in the guide hole; a guide bar is provided on the outside of the metal tube 16, and the guide bar is arranged parallel to the axis of the metal tube 16, and a guide groove adapted to the guide bar is provided in the guide block 12, and the guide bar is slidably placed in the guide groove, so that the metal tube 16 can only slide in the guide hole and will not rotate; a retaining ring 29 is fixedly provided on the end of the outer side of the metal tube 16 away from the flexible head; a first spring 30 is sleeved on the metal tube 16, one end of the first spring 30 abuts on the guide block 12, and the other end abuts on the retaining ring 29; the first spring 30 is used to push the metal tube 16 to return In the reset state, the spray gun 2 can only spray out flushing liquid without bubbles to prevent bubbles from entering the wound tissue; a positioning pin 6 is movably provided on the shell 9, and a pin hole adapted to the positioning pin 6 is provided on the retaining ring 29, one end of the positioning pin 6 extends to the outside of the shell 9, and the other end is inserted into the pin hole; when the positioning pin 6 is inserted into the pin hole, the metal tube 16 is fixed in the shell 9 to ensure that the spray gun 2 does not spray out flushing liquid containing bubbles; when the positioning pin 6 is pulled out of the pin hole, the control component is pressed, the metal tube 16 moves along the axial direction of the guide hole, the first spring 30 is squeezed and contracted, and after releasing the control component, the first spring 30 pushes the metal tube 16 to reset, thereby realizing the switching between the two flushing modes of "containing bubbles" and "not containing bubbles".

[0021] In this embodiment, a push-type control valve 11 is installed on the housing 9; the hose 5 and the liquid supply host 1 are connected through the push-type control valve 11; the push-type control valve 11 is an existing component used to control the delivery and stop of the flushing liquid.

[0022] In this embodiment, a pipe through hole is provided on one end of the metal tube 16 close to the control component, and one end of the hose 5 extends from the inside of the metal tube 16 through the pipe through hole to the outside of the metal tube 16 and is connected to the push-type control valve 11; a bellows 39 is connected to the hose 5, and is connected to the push-type control valve 11 through the bellows 39; the provision of the bellows 39 can increase the movement stroke of the metal tube 16 and prevent the metal tube 16 from being stuck due to the length limitation of the hose 5.

[0023] In this embodiment, the transmission assembly includes a transmission rod 33 and a steel wire 13. A transmission hole 42 is provided on the metal tube 16 to accommodate the transmission rod 33. The axis of the transmission hole 42 is parallel to the axis of the metal tube 16. The transmission rod 33 is slidably mounted in the transmission hole 42, with the end proximal to the control assembly extending to the exterior of the metal tube 16. One end of the steel wire 13 is fixed to the end of the transmission rod 33 distal to the control assembly. The control assembly includes a wheel disc 8, a rocker 35, a plunger 38, an extension rod 37 and a joint bearing 36; the rocker 35 is fixed to the wheel disc 8; the plunger 38 is fixed to the end of the metal tube 16 away from the flexible head; the joint bearing 36 is installed on the end of the wheel disc 8 away from the rocker 35; one end of the extension rod 37 is fixed to the plunger 38, and the other end is installed in the joint bearing 36; the axis of the plunger 38, the wheel disc 8, the rocker 35 and the metal tube 16 coincide; the end of the transmission rod 33 close to the wheel disc 8 is integrally provided with an elbow 34, which faces away from the axis of the metal tube 16 The second spring 32 is provided on the transmission rod 33, and the metal tube 16 is provided with a blind hole for accommodating the second spring 32. The second spring 32 is placed in the blind hole, with one end abutting the metal tube 16 and the other end fixedly connected to the transmission rod 33. The second spring 32 pushes the transmission rod 33 in the direction toward the wheel disc 8, so that the transmission rod 33 is in close contact with the wheel disc 8. After the user grasps the handle 10, the thumb presses on the rocker 35, and the wheel disc 8 is driven to move on the extension rod 37 through the rocker 35. The control component can be operated by a single finger. The flexible head includes multiple rings 4; the rings 4 are sleeved and fixed on the hose 5; the multiple rings 4 are arranged parallel to each other and spaced apart; the rings 4 are provided with multiple threading holes, and the multiple threading holes correspond to the multiple steel wires 13. Wear-resistant bushings 14 are provided in the threading holes to match the steel wires 13, and the steel wires 13 can slide through the wear-resistant bushings 14; multiple magnet rings 15 are fixedly provided on the end surface of the ring 4 corresponding to the multiple threading holes, and the axis of the magnet ring 15 coincides with the axis of the threading hole; the corresponding magnet rings 15 on two adjacent rings 4 magnetically repel each other; the end of the steel wire 13 away from the transmission rod 33 and the end of the metal tube 16 away from the control component are respectively fixedly connected to the two rings 4 at both ends. When the user pushes the rocker 35 to deflect the wheel 8, the transmission rod 33 at the corresponding position is pressed into the direction of the metal tube 16, and the steel wire 13 connected to the transmission rod 33 changes from a tensioned state to a loose state. Under the mutual repulsion of the magnet ring 15 on the collar 4, the interval between the collars 4 on the corresponding side of the steel wire 13 increases. At the same time, the transmission rod 33 on the other side of the deflection of the wheel 8 (the side with an angle of 180° to the aforementioned deflection direction) moves toward the outside of the metal tube 16 under the push of the second spring 32, and the steel wire 13 connected by the transmission rod 33 pulls the collar 4 on this side to move, so that the spacing between the collars 4 on this side becomes smaller. Under the combined effect, the hose 5 is driven to deform and the deflection of the flushing direction is achieved.

[0024] In this embodiment, the gas-liquid mixing mechanism includes an air valve and a diameter regulator; the air valve is sleeved on the outside of the metal tube 16; the air valve includes an annular valve body 19 and a support portion 17; the support portion 17 is fixed to one side of the annular valve body 19 and is fixedly connected to the shell 9; an annular air chamber 21 is provided inside the annular valve body 19; a first air hole 18 is provided on the inner side of the annular valve body 19, and a second air hole 20 is provided on the outer side, and the first air hole 18 and the second air hole 20 are connected to the annular air chamber 21; a sealing ring 22 is fixedly provided on the inner side surface of the annular valve body 19 away from the flexible head, and the sealing ring 22 is fixedly provided. The inner side is in frictional contact with the outer side of the metal tube 16; the diameter adjuster includes an adjusting ring 25 and a plurality of extrusion components; the adjusting ring 25 is sleeved on the outside of the metal tube 16 and fixedly connected to the housing 9; the air valve is located on the side of the adjusting ring 25 close to the flexible head; the inner diameter of the adjusting ring 25 gradually increases from the end close to the flexible head to the end away from the flexible head; the plurality of extrusion components are distributed in a circular array with the axis of the metal tube 16 as the center; the extrusion component is located on the side of the adjusting ring 25 away from the flexible head; the extrusion component includes a wedge block 27, a slide rod 28, a third spring 26 and a trapezoidal pressure block 24 The metal tube 16 is provided with a sliding hole 40 adapted to the slide rod 28; the slide rod 28 is slidably installed in the sliding hole 40, with one end extending to the inside of the metal tube 16 and the other end extending to the outside of the metal tube 16; the axis extension line of the slide rod 28 passes perpendicularly through the axis of the metal tube 16; the trapezoidal pressure block 24 is placed between the metal tube 16 and the hose 5 and abuts against the outer surface of the hose 5; the width of the trapezoidal pressure block 24 gradually increases from the end close to the hose 5 to the end close to the metal tube 16; the wedge block 27 is placed outside the metal tube 16 and fixedly connected to the slide rod 28; the spring is placed outside the metal tube 16 The outer side of the wedge block 27 is provided with a guide slope adapted to the inner side of the adjusting ring 25, and the wedge block 27 slides and fits the inner side of the adjusting ring 25 through the guide slope; the metal tube 16 is provided with a third air hole 41 corresponding to the first air hole 18; the outside of the hose 5 is connected to the air inlet pipe 23, and the front end of the air inlet pipe 23 is fixed in the third air hole 41; the air inlet pipe 23 is located on one side of the trapezoidal pressure block 24. When the locating pin 6 is inserted into the pin hole, the sealing ring 22 blocks the third air hole 41 and closes the air inlet pipe 23; after pulling out the locating pin 6, the wheel disc 8 is pressed to push the metal tube 16 inward, and the wedge block 27 slides against the inner side surface of the adjusting ring 25, so that the wedge block 27 moves along the axial direction of the slide rod 28 toward the axial direction of the metal tube 16, and the trapezoidal pressing block 24 squeezes the hose 5 to reduce the diameter of the hose 5, and under the influence of the shape of the trapezoidal pressing block 24, the hose 5 at this location forms a "Venturi tube" structure. At this time, the third air hole 41 is connected to the first air hole 18, and the outside air is sucked into the hose 5 under the action of negative pressure and sprayed out with the high-speed flowing flushing liquid.

[0025] In this embodiment, an air inlet channel is provided on the housing 9; a filter 3 is fixedly provided on the air inlet channel to prevent external pollutants from mixing into the flushing liquid.

[0026] In this embodiment, eight transmission components are configured to achieve eight-directional adjustment of the flushing angle.

[0027] In this embodiment, a fourth spring 31 is sleeved on the locating pin 6; the fourth spring 31 is located inside the outer shell 9, with one end abutting against the outer shell 9 and the other end fixedly connected to the locating pin 6. After the locating pin 6 is released, the fourth spring 31 presses the locating pin 6 into the pin hole to prevent the locating pin 6 from falling out accidentally.

[0028] In this embodiment, the control assembly further includes a protective sleeve 7 ; one end of the protective sleeve 7 is fixedly connected to the wheel disc 8 , and the other end is fixedly connected to the housing 9 ; the transmission rod 33 is located inside the protective sleeve 7 .

[0029] How to use Internal wound irrigation mode: Keep the positioning pin 6 inserted into the pin hole of the retaining ring 29, and the metal tube 16 is in a locked state; Press the push-type control valve 11 on the housing 9, and the flushing liquid delivered by the liquid supply main unit 1 is sprayed out through the hose 5; The thumb moves the rocker 35, which drives the specific transmission rod 33 to compress through the deflection of the wheel 8, and the linked steel wire 13 pulls the four groups of magnetic repulsion rings to achieve 0°-30° directional bending (adjustable in 8 directions) at the front end of the hose 5, accurately flushing deep wounds.

[0030] Skin surface bubble flushing mode: Pull out the positioning pin 6 to release the lock of the metal tube 16; Press the wheel disc 8 toward the housing 9, and the metal tube 16 moves axially inwards: The conical surface of the adjusting ring 25 pushes the wedge block 27 to contract radially → the trapezoidal pressing block 24 squeezes the hose 5 to form a Venturi neck; The third air hole 41 is connected to the air chamber of the annular valve body 19, and the external air is sucked in through the filter; The flushing liquid flowing through the necking area at high speed generates negative pressure, mixing air into the liquid flow to form bubbles that are ejected.

[0031] Operation terminated: Release the push-type control valve 11 to stop the liquid supply; After flushing the skin, the positioning pin 6 needs to be re-inserted to ensure that the air path is completely closed in the wound mode.

Claims

1. A trauma orthopedic wound cleaning device, comprising a liquid supply main unit (1) and a spray gun (2), wherein the spray gun (2) is connected to the liquid supply main unit (1) through a liquid supply pipe, and is characterized in that: The spray gun (2) comprises: The housing (9) is provided with a handle (10) at the bottom for medical personnel to hold; The water outlet pipe assembly comprises a hose (5) and a metal pipe (16); the metal pipe (16) is slidably mounted in the housing (9), with its front end extending to the outside of the housing (9); the hose (5) is fixed in the metal pipe (16), with its front end extending to the outside of the metal pipe (16), and its rear end connected to the liquid supply pipe; The angle adjustment mechanism comprises a flexible head, a transmission assembly and a control assembly; the flexible head is sleeved and fixed on the front end of the hose (5); the rear end of the flexible head is fixedly connected to the metal tube (16); the control assembly is installed on the metal tube (16) at one end away from the flexible head; the transmission assembly is slidably installed on the metal tube (16), one end of which is connected to the flexible head and the other end of which is connected to the control assembly; a plurality of transmission assemblies are configured and distributed in a circular array with the axis of the metal tube (16) as the center; the shaking control assembly drives the transmission assembly to move, drives the flexible head to generate bending deformation through the transmission assembly, and drives the front end of the hose (5) to bend through the flexible head; The gas-liquid mixing mechanism is sleeve-mounted on the outside of the metal tube (16) and is arranged to abut against the outer side surface of the hose (5); the control component is pressed in a direction close to the housing (9), and the liquid flow rate in the hose (5) is changed through the gas-liquid mixing mechanism, so that air enters the hose (5) and is sprayed out together with the flushing liquid.

2. The orthopedic wound cleaning device according to claim 1, characterized in that: A guide block (12) is fixedly provided in the housing (9), and a guide hole adapted to the metal tube (16) is provided on the guide block (12), and the metal tube (16) is slidably installed in the guide hole; a retaining ring (29) is fixedly provided on the outer side of the metal tube (16) away from the flexible head; a first spring (30) is sleeved on the metal tube (16), and one end of the first spring (30) abuts against the guide block (12), and the other end abuts against the retaining ring (29); a positioning pin is movably provided on the housing (9) (6), a pin hole adapted to the positioning pin (6) is provided on the retaining ring (29), one end of the positioning pin (6) extends to the outside of the housing (9), and the other end is inserted into the pin hole; when the positioning pin (6) is inserted into the pin hole, the metal tube (16) is fixed in the housing (9); when the positioning pin (6) is pulled out of the pin hole, the control component is pressed, the metal tube (16) moves along the axial direction of the guide hole, the first spring (30) is squeezed and contracted, and after the control component is released, the first spring (30) pushes the metal tube (16) to reset.

3. The trauma orthopedic wound cleaning device according to claim 1, characterized in that: A push-type control valve (11) is installed on the housing (9); the hose (5) and the liquid supply main unit (1) are connected via the push-type control valve (11).

4. The orthopedic wound cleaning device according to claim 3, characterized in that: A pipe hole is provided on one end of the metal pipe (16) close to the control component, and one end of the hose (5) extends from the inside of the metal pipe (16) through the pipe hole to the outside of the metal pipe (16) and is connected to the push-type control valve (11).

5. The trauma orthopedic wound cleaning device according to claim 1, characterized in that: The transmission assembly comprises a transmission rod (33) and a steel wire (13); a transmission hole (42) for accommodating the transmission rod (33) is provided on the metal tube (16), and the axis of the transmission hole (42) is parallel to the axis of the metal tube (16); the transmission rod (33) is slidably installed in the transmission hole (42), and one end close to the control assembly extends to the outside of the metal tube (16); one end of the steel wire (13) is fixed to the end of the transmission rod (33) away from the control assembly; The control assembly comprises a wheel disc (8), a rocker (35), a plunger (38), an extension rod (37) and a joint bearing (36); the rocker (35) is fixed on the wheel disc (8); the plunger (38) is fixed on the end of the metal tube (16) away from the flexible head; the joint bearing (36) is mounted on the wheel disc (8); one end of the extension rod (37) is fixed on the plunger (38) and the other end is mounted in the joint bearing (36); the axes of the plunger (38), the wheel disc (8), the rocker (35) and the metal tube (16) coincide with each other; the transmission rod (33) is mounted on the wheel disc (8); the extension rod (37) is mounted on the plunger (38) and the other end is mounted on the joint bearing (36); the axes of the plunger (38), the wheel disc (8), the rocker (35) and the metal tube (16) coincide with each other; the transmission rod (33) is mounted on the wheel disc (8); the extension rod (37) is mounted on the plunger (38) and the other end is mounted on the joint bearing (36); the axes of the plunger (38), the wheel disc (8), the rocker (35) and the metal tube (16) coincide with each other; the transmission rod (33) is mounted on the wheel disc (8); the extension rod (37) is mounted on the plunger (38) and the other end is mounted on the joint bearing (36); the axis ... An elbow (34) is integrally provided at one end close to the wheel disc (8), and the elbow (34) extends in a direction away from the axis of the metal tube (16); the elbow (34) abuts against one side of the wheel disc (8); a second spring (32) is sleeved on the transmission rod (33), and a blind hole for accommodating the second spring (32) is provided on the metal tube (16); the second spring (32) is placed in the blind hole, one end of the second spring abuts against the metal tube (16), and the other end is fixedly connected to the transmission rod (33), and the second spring (32) pushes the transmission rod (33) in a direction toward the wheel disc (8); The flexible head comprises a plurality of collars (4); the collars (4) are sleeved and fixed on the hose (5); the plurality of collars (4) are arranged in parallel and spaced apart; a plurality of threading holes are provided on the collar (4), the plurality of threading holes corresponding to the plurality of steel wires (13), wear-resistant bushings (14) adapted to the steel wires (13) are provided in the threading holes, and the steel wires (13) are slidably passed through the wear-resistant bushings (14); a plurality of magnet rings (15) are fixedly provided on the end surface of the collar (4) corresponding to the plurality of threading holes, and the axes of the magnet rings (15) coincide with the axes of the threading holes; the corresponding magnet rings (15) on two adjacent collars (4) magnetically repel each other; one end of the steel wire (13) away from the transmission rod (33) and one end of the metal tube (16) away from the control component are respectively fixedly connected to the two collars (4) at both ends.

6. The trauma orthopedic wound cleaning device according to claim 5, characterized in that: The gas-liquid mixing mechanism includes an air valve and a diameter regulator; the air valve is sleeved on the outside of the metal tube (16); the air valve includes an annular valve body (19) and a support portion (17); the support portion (17) is fixed to one side of the annular valve body (19) and is fixedly connected to the shell (9); an annular air chamber (21) is provided inside the annular valve body (19); a first air hole (18) is provided on the inner side of the annular valve body (19), and a second air hole (20) is provided on the outer side, and the first air hole (18) and the second air hole (20) are communicated with the annular air chamber (21); a sealing ring (22) is fixedly provided on the inner side surface of the annular valve body (19) away from the flexible head, and the inner side of the sealing ring (22) is fixedly provided. The side surface is in frictional contact with the outer side surface of the metal tube (16); the diameter adjuster includes an adjusting ring (25) and a plurality of extrusion components; the adjusting ring (25) is sleeved on the outside of the metal tube (16) and fixedly connected to the housing (9); the air valve is located on the side of the adjusting ring (25) close to the flexible head; the inner diameter of the adjusting ring (25) gradually increases from the end close to the flexible head to the end away from the flexible head; the plurality of extrusion components are distributed in a circumferential array with the axis of the metal tube (16) as the center; the extrusion component is located on the side of the adjusting ring (25) away from the flexible head; the extrusion component includes a wedge block (27), a slide rod (28), a third spring (26) and a trapezoidal pressure block (24); the metal tube (16) is provided with A sliding hole (40) is provided which is adapted to the sliding rod (28); the sliding rod (28) is slidably installed in the sliding hole (40), with one end extending to the inside of the metal tube (16) and the other end extending to the outside of the metal tube (16); the axis extension line of the sliding rod (28) vertically passes through the axis of the metal tube (16); the trapezoidal pressing block (24) is placed between the metal tube (16) and the hose (5) and abuts against the outer surface of the hose (5); the width of the trapezoidal pressing block (24) gradually increases from the end close to the hose (5) to the end close to the metal tube (16); the wedge block (27) is placed outside the metal tube (16) and fixedly connected to the sliding rod (28); the spring is placed outside the metal tube (16), The utility model is sleeved on the slide rod (28), with one end abutting on the wedge block (27) and the other end abutting on the metal tube (16); the thickness of the wedge block (27) gradually decreases from one end close to the adjustment ring (25) to the other end; the outer side surface of the wedge block (27) is provided with a guide inclined surface adapted to the inner side surface of the adjustment ring (25), and slides and fits on the inner side surface of the adjustment ring (25) through the guide inclined surface; the metal tube (16) is provided with a third air hole (41) corresponding to the first air hole (18); the outside of the hose (5) is connected to the air inlet pipe (23), and the front end of the air inlet pipe (23) is fixed in the third air hole (41); the air inlet pipe (23) is located on one side of the trapezoidal pressure block (24).

7. The orthopedic wound cleaning device according to claim 6, characterized in that: An air intake channel is provided on the housing (9); a filter screen (3) is fixedly provided on the air intake channel.

8. The orthopedic wound cleaning device according to claim 1, characterized in that: There are 8 transmission components.

9. The trauma orthopedic wound cleaning device according to claim 5, characterized in that: A fourth spring (31) is sleeved on the positioning pin (6); the fourth spring (31) is located inside the housing (9), with one end abutting against the housing (9) and the other end fixedly connected to the positioning pin (6).

10. The trauma orthopedic wound cleaning device according to claim 5, characterized in that: The control assembly further comprises a protective sleeve (7); one end of the protective sleeve (7) is fixedly connected to the wheel disc (8), and the other end is fixedly connected to the housing (9); the transmission rod (33) is located inside the protective sleeve (7).

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