A wound orthopedic wound cleaning device

Abstract

The application provides a trauma orthopedic wound cleaning device which is composed of a liquid supply host and a spray gun. The spray gun innovatively integrates: 1. an angle adjusting mechanism, which drives a circumferentially distributed transmission rod through a rocker deflection wheel, and achieves multi-directional bending of the front end of a hose through a magnetic repulsion ring group pulled by a steel wire; 2. a gas-liquid mixing mechanism, which moves a metal tube axially when a wheel disc is pressed, adjusts a ring cone surface to push a wedge-shaped block to radially extrude a hose to form a Venturi structure, and synchronously opens an air path to inhale air to generate bubbles; and 3. a safety locking assembly, which forcibly closes the air path when a positioning pin is inserted into a blocking ring pin hole. The device has the advantages that: a mechanical type dual-mode safety switching mechanism is created, bubbles are completely isolated during wound flushing to avoid embolism risk, and the cleaning effect is enhanced by bubbles during skin flushing; and one-hand operation in the whole process solves the problems of unstable pressure, pollution splashing and complicated operation of traditional equipment.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a trauma orthopedic wound cleaning device. Background Technology

[0002] Current trauma orthopedic clinical debridement mainly relies on manual irrigation with syringes or simple squeeze bottles, which has significant drawbacks: manual operation leads to uncontrollable irrigation pressure (pressures below 4 psi cannot effectively remove deep contaminants, while pressures above 15 psi can easily damage newly formed tissue); splashing of contaminated liquid can easily cause cross-infection and increase the burden of postoperative cleaning; the operation requires both hands and it is difficult to adjust the irrigation angle, resulting in incomplete deep cleaning. Traditional mechanical devices cannot achieve the safe application of air bubbles—directly injecting air bubbles into the wound carries a fatal risk of gas embolism, and current technology lacks a reliable mechanical air bubble / pure liquid switching mechanism. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a wound cleaning device for orthopedic trauma, which improves the cleaning effect by rinsing the wound with bubbles and rinsing fluid.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A trauma orthopedic wound cleaning device includes a liquid supply unit and a spray gun. The spray gun is connected to the liquid supply unit via a liquid supply pipe. The spray gun includes:

[0006] The outer shell has a handle at the bottom for medical personnel to hold.

[0007] The water outlet assembly includes a hose and a metal tube; the metal tube is slidably mounted in the housing and extends to the outside of the housing at its front end; the hose is fixed inside the metal tube and extends to the outside of the metal tube at its front end, and is connected to the liquid supply pipe at its rear end.

[0008] An angle adjustment mechanism includes a flexible head, a transmission component, and a control component. The flexible head is sleeved and fixed to the front end of the flexible tube. The rear end of the flexible head is fixedly connected to a metal tube. The control component is mounted on the metal tube at the end away from the flexible head. The transmission component is slidably mounted on the metal tube, with one end connected to the flexible head and the other end connected to the control component. Multiple transmission components are configured and arranged in a circular array around the axis of the metal tube. Shaking the control component drives the transmission component to move, which in turn causes the flexible head to bend, thus bending the front end of the flexible tube.

[0009] The gas-liquid mixing mechanism is sleeved and installed on the outside of the metal tube and abuts against the outer side of the hose; when the control component is pressed towards the outer shell, the liquid flow rate in the hose is changed by the gas-liquid mixing mechanism, so that air enters the hose and is sprayed out together with the flushing liquid.

[0010] Preferably, a guide block is fixedly disposed inside the outer casing, and the guide block is provided with a guide hole adapted to the metal tube, the metal tube being slidably installed in the guide hole; a retaining ring is fixedly disposed at the outer end of the metal tube away from the flexible head; a first spring is sleeved on the metal tube, one end of the first spring abutting against the guide block, and the other end abutting against the retaining ring; a positioning pin is movably disposed on the outer casing, the retaining ring being provided with a pin hole adapted to the positioning pin, one end of the positioning pin extending to the outside of the outer casing, and the other end inserted into the pin hole; when the positioning pin is inserted into the pin hole, the metal tube is fixed in the outer casing; when the positioning pin is pulled out of the pin hole, pressing the control component causes the metal tube to move along the axial direction of the guide hole, the first spring is compressed and contracted, and when the control component is released, the first spring pushes the metal tube to reset.

[0011] Preferably, a push-button control valve is installed on the housing; the hose and the liquid supply unit are connected through the push-button control valve.

[0012] Preferably, a through hole is provided at one end of the metal tube near the control component, and one end of the flexible tube extends from the inside of the metal tube through the through hole to the outside of the metal tube and connects to the push-button control valve.

[0013] 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, and the axis of the transmission hole is parallel to the axis of the metal tube; the transmission rod is slidably installed in the transmission hole, and one end near the control assembly extends 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.

[0014] The control assembly includes a wheel, a rocker arm, a plunger, an extension rod, and a spherical bearing. The rocker arm is fixed to the wheel. The plunger is fixed inside a metal tube at one end away from the flexible head. The spherical bearing is mounted on the wheel. One end of the extension rod is fixed to the plunger, and the other end is mounted in the spherical bearing. The axes of the plunger, wheel, rocker arm, and metal tube are coincident. An elbow is integrally formed on one end of the transmission rod near the wheel, extending in a direction away from the axis of the metal tube. The elbow abuts against one side of the wheel. A second spring is sleeved on the transmission rod, and a blind hole is provided on the metal tube to accommodate the second spring. The second spring is placed in the blind hole, with one end abutting against the metal tube and the other end fixedly connected to the transmission rod. The second spring pushes the transmission rod toward the wheel.

[0015] The flexible head includes multiple collars; the collars are sleeved and fixed on the flexible tube; the multiple collars are arranged parallel to each other at intervals; the collars are provided with multiple wire holes, the multiple wire holes correspond to multiple steel wires, and wear-resistant bushings adapted to the steel wires are provided in the wire holes, the steel wires are slidably arranged through the wear-resistant bushings; multiple magnet rings are fixedly installed on the end face of the collars corresponding to the multiple wire holes, the axis of the magnet rings coincides with the axis of the wire hole; the corresponding magnet rings on two adjacent collars repel each other magnetically; the end of the steel wire away from the transmission rod and the end of the metal tube away from the control component are respectively fixedly connected to two collars at both ends.

[0016] Preferably, the gas-liquid mixing mechanism includes a gas valve and a diameter adjuster; the gas valve is sleeved on the outside of the metal tube; the gas valve includes an annular valve body and a support part; the support part is fixed on one side of the annular valve body and 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, the first air hole and the second air hole communicating with the annular air chamber; a sealing ring is fixedly provided on the inner side of the annular valve body at the end away from the flexible head, and the inner side of the sealing ring is in frictional contact with the outer side of the metal tube; the diameter adjuster includes an adjusting ring and multiple extrusion components; the adjusting ring is sleeved on the outside of the metal tube and fixedly connected to the outer shell; the gas valve is located on the side of the adjusting ring closer to the flexible head; the inner diameter of the adjusting ring gradually increases from the end closer to the flexible head to the end away from the flexible head; multiple extrusion components are distributed in a circumferential array around the axis of the metal tube; the extrusion components are located on the side of the adjusting ring away from the flexible head; the extrusion components include a wedge block, a slide rod, and a third spring. A trapezoidal pressure block is provided; a sliding hole adapted to a sliding rod is provided on the metal tube; the sliding rod is slidably installed in the sliding hole, with one end extending into the inside of the metal tube and the other end extending into the outside of the metal tube; the extended line of the 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 the end near the hose to the end near the metal tube; a wedge block is placed outside the metal tube and fixedly connected to the sliding rod; a spring is placed outside the metal tube, sleeved on the sliding rod, with one end abutting against the wedge block and the other end abutting against the metal tube; the thickness of the wedge block gradually decreases from the end near the adjusting ring to the other end; the outer surface of the wedge block is provided with a guide slope adapted to the inner surface of the adjusting ring, and slides against the inner surface of the adjusting ring through the guide slope; a third air hole corresponding to the first air hole is provided on the metal tube; an air inlet pipe is connected to the outside of the hose, 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.

[0017] Preferably, the outer casing is provided with an air intake channel; a filter screen is fixedly installed on the air intake channel.

[0018] Preferably, the transmission assembly is configured with eight units.

[0019] Preferably, a fourth spring is sleeved on the positioning pin; the fourth spring is located inside the outer casing, with one end abutting against the outer casing and the other end fixedly connected to the positioning pin.

[0020] Preferably, the control component further includes a protective sleeve; one end of the protective sleeve is fixedly connected to the wheel, and the other end is fixedly connected to the outer casing; the transmission rod is located inside the protective sleeve.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] Through a locking mechanism between the positioning pin and retaining ring, and the linkage with the air valve, strict isolation between air bubbles and pure liquid is achieved mechanically: in wound mode, the sealing ring blocks the third air pore, completely eliminating the risk of gas embolism; in skin mode, the Venturi structure generates air bubbles to enhance the removal of surface contaminants. The trapezoidal pressure block deforms the flexible tube to form an adaptive Venturi tube, ensuring stable pressure during air bubble generation; the spring reset system ensures constant pressure output in wound mode. When held with one hand, the thumb simultaneously controls the joystick (angle adjustment) and the dial (mode switching), simplifying the operation process; the magnetic ring mutual repulsion design reduces the bending resistance of the collar assembly, improving operational sensitivity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the spray gun in this invention;

[0025] Figure 3 This is a diagram showing the internal structure of the spray gun in this invention;

[0026] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0028] Figure 6 for Figure 3 A magnified view of a section at point C;

[0029] Figure 7 for Figure 3 A magnified view of a section at point D;

[0030] Figure 8 for Figure 3 A magnified view of a section at point E in the middle;

[0031] Figure 9 This is a schematic diagram of the water outlet pipe assembly, angle adjustment mechanism, and gas-liquid mixing mechanism in this invention.

[0032] Figure 10This is a schematic diagram of the structure of the wheel in this invention;

[0033] Figure 11 This is a schematic diagram of the air valve in this invention;

[0034] Figure 12 This is a schematic diagram of the structure of the metal tube in this invention;

[0035] Figure 13 This is a schematic diagram of the structure of the hose in this invention;

[0036] Figure 14 This is a schematic diagram of the adjusting ring in this invention;

[0037] Figure 15 This is a schematic diagram of the extrusion component in the present invention;

[0038] Figure 16 This is a schematic diagram of the transmission rod in this invention.

[0039] in:

[0040] 1. Liquid supply unit; 2. Spray gun; 3. Filter screen; 4. Collar; 5. Hoses; 6. Positioning pin; 7. Protective sleeve; 8. Wheel; 9. Housing; 10. Handle; 11. Push-button control valve; 12. Guide block; 13. Steel wire; 14. Wear-resistant bushing; 15. Magnetic ring; 16. Metal tube; 17. Support; 18. First air port; 19. Annular valve body; 20. Second air port; 21. Annular air chamber; 22. Sealing 23. Sealing ring; 24. Intake pipe; 25. Trapezoidal pressure block; 26. Adjusting ring; 27. Third spring; 28. Wedge block; 29. ​​Slide rod; 30. Retaining ring; 31. First spring; 32. Fourth spring; 33. Second spring; 34. Transmission rod; 35. Elbow; 36. Rocker arm; 37. Joint bearing; 38. Extension rod; 39. Plunger; 40. Bellows; 41. Sliding hole; 42. Third air hole; 43. Transmission hole. Detailed Implementation

[0041] The invention will now be further described with reference to the accompanying drawings.

[0042] like Figures 1 to 16 As shown, a trauma orthopedic wound cleaning device includes a liquid supply unit 1 and a spray gun 2. The spray gun 2 is connected to the liquid supply unit 1 via a liquid supply pipe. The liquid supply unit 1 is an existing device used to pump irrigation fluid to the spray gun 2. The spray gun 2 includes:

[0043] The outer shell 9 has a handle 10 at the bottom for medical personnel to hold;

[0044] The water outlet assembly includes 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 inside 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.

[0045] Angle adjustment mechanism includes a flexible head, a transmission component, and a control component. The flexible head is sleeved and fixed to the front end of the flexible tube 5. The rear end of the flexible head is fixedly connected to the metal tube 16. The control component is installed on the metal tube 16 at the end away from the flexible head. The transmission component is slidably installed on the metal tube 16, with one end connected to the flexible head and the other end connected to the control component. Multiple transmission components are configured and arranged in a circular array around the axis of the metal tube 16. Shaking the control component drives the transmission component to move, which in turn causes the flexible head to bend, thereby causing the front end of the flexible tube 5 to bend.

[0046] A gas-liquid mixing mechanism is fitted onto the outside of the metal tube 16 and abuts against the outer side of the hose 5. Pressing the control component towards the housing 9 changes the liquid flow rate within the hose 5 via the gas-liquid mixing mechanism, allowing air to enter the hose 5 and be sprayed out along with the rinsing solution. Foam is more viscous than liquid, allowing for better coverage of uneven skin surfaces (such as around hair, wrinkles, and pores), reducing waste caused by liquid runoff and improving detergent utilization. Foam adheres to the skin longer than water, extending the interaction time between disinfectants or detergents and contaminants / microorganisms, potentially enhancing chemical cleaning effectiveness (if the rinsing solution contains antibacterial ingredients). The microstructure of foam may encapsulate tiny particulate contaminants (such as dust and grit) through surface tension. The weak shear force when foam bursts may also help loosen loosely adhering dirt. Foam is less prone to splashing than high-pressure water jets, reducing the risk of contamination to the operating environment and healthcare workers.

[0047] When rinsing the skin at the wound site, press the control component to send air into the hose 5 via the air-liquid mixing mechanism. The air is then sprayed out along with the rinsing fluid in the hose 5. This combination of air bubbles and rinsing fluid enhances the rinsing effect. When rinsing the inside of the wound, release the control component to close the air-liquid mixing mechanism. Only the rinsing fluid is used to rinse the wound tissue. The rinsing angle can be adjusted by shaking the control component to deflect the flexible head.

[0048] In this embodiment, a guide block 12 is fixedly disposed inside the outer casing 9. The guide block 12 is provided with a guide hole adapted to the metal tube 16, and the metal tube 16 is slidably installed in the guide hole. A guide strip is provided on the outside of the metal tube 16, and the guide strip is arranged parallel to the axis of the metal tube 16. A guide groove adapted to the guide strip is provided inside the guide block 12, and the guide strip 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 disposed 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, one end of the first spring 30 abutting against the guide block 12, and the other end abutting against the retaining ring 29. The first spring 30 is used to push the metal tube 16 back to its original position. In the reset state, the spray gun 2 can only spray rinsing fluid without air bubbles to prevent air bubbles from entering the wound tissue. A positioning pin 6 is movably provided on the outer 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 outer 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 outer shell 9 to ensure that the spray gun 2 will not spray rinsing fluid containing air bubbles. When the positioning pin 6 is pulled out of the pin hole, the control component is pressed, and the metal tube 16 moves along the axis of the guide hole. The first spring 30 is squeezed and contracted. After the control component is released, the first spring 30 pushes the metal tube 16 to reset, realizing the switching between the two rinsing modes of "containing air bubbles" and "not containing air bubbles".

[0049] In this embodiment, a push-button control valve 11 is installed on the housing 9; the hose 5 and the liquid supply unit 1 are connected through the push-button control valve 11; the push-button control valve 11 is an existing component used to control the delivery and stop of the flushing liquid.

[0050] In this embodiment, a through hole is provided at one end of the metal tube 16 near the control component. One end of the flexible hose 5 extends from the inside of the metal tube 16 through the through hole to the outside of the metal tube 16 and is connected to the push-button control valve 11. A bellows 39 is connected to the flexible hose 5 and is connected to the push-button control valve 11 through the bellows 39. 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 flexible hose 5.

[0051] In this embodiment, the transmission assembly includes 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 near 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.

[0052] The control assembly includes a wheel 8, a rocker arm 35, a plunger 38, an extension rod 37, and a spherical bearing 36. The rocker arm 35 is fixed to the wheel 8. The plunger 38 is fixed inside the metal tube 16 at the end away from the flexible head. The spherical bearing 36 is mounted on the wheel 8 at the end away from the rocker arm 35. One end of the extension rod 37 is fixed to the plunger 38, and the other end is mounted in the spherical bearing 36. The axes of the plunger 38, the wheel 8, the rocker arm 35, and the metal tube 16 coincide. A bend 34 is integrally provided on the transmission rod 33 at the end near the wheel 8, and the bend 34 faces away from the axis of the metal tube 16. The direction extends; the elbow 34 abuts against one side of the wheel 8; a second spring 32 is sleeved on the transmission rod 33, and a blind hole is provided on the metal tube 16 to accommodate the second spring 32; the second spring 32 is placed in the blind hole, one end abuts against the metal tube 16, and the other end is fixedly connected to the transmission rod 33. The second spring 32 pushes the transmission rod 33 toward the wheel 8, so that the transmission rod 33 is in close contact with the wheel 8; after the user holds the handle 10, the thumb presses on the rocker arm 35, and the rocker arm 35 drives the wheel 8 to move on the extension rod 37. The control components can be operated with a single finger.

[0053] The flexible head includes multiple collars 4; the collars 4 are sleeved and fixed on the flexible tube 5; the multiple collars 4 are arranged parallel to each other at intervals; the collars 4 are provided with multiple wire holes, the multiple wire holes are arranged corresponding to multiple steel wires 13, and wear-resistant bushings 14 adapted to the steel wires 13 are provided in the wire holes, and the steel wires 13 are slidably arranged through the wear-resistant bushings 14; multiple magnet rings 15 are fixedly provided on the end face of the collars 4 corresponding to the multiple wire holes, and the axis of the magnet rings 15 coincides with the axis of the wire holes; the corresponding magnet rings 15 on two adjacent collars 4 repel each other magnetically; 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 two collars 4 at both ends. When the user pushes the rocker arm 35 to deflect the wheel 8, the corresponding transmission rod 33 is pressed into the metal tube 16. The steel wire 13 connected to the transmission rod 33 changes from a taut state to a slack state. Under the mutual repulsion of the magnetic rings 15 on the collar 4, the gap 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 wheel 8 deflection (the side that forms a 180° angle with the aforementioned deflection direction) moves outward in the direction of the metal tube 16 under the push of the second spring 32. The steel wire 13 connected to the transmission rod 33 pulls the collar 4 on that side to move, making the gap between the collars 4 on that side smaller. Under the combined effect, the hose 5 is deformed, thereby achieving the deflection of the rinsing direction.

[0054] In this embodiment, the gas-liquid mixing mechanism includes a gas valve and a diameter adjuster; the gas valve is sleeved on the outside of the metal tube 16; the gas valve includes an annular valve body 19 and a support part 17; the support part 17 is fixed to one side of the annular valve body 19 and fixedly connected to the outer 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, the first air hole 18 and the second air hole 20 communicating with the annular air chamber 21; a sealing ring 22 is fixedly provided on the inner side of the end of the annular valve body 19 away from the flexible head, the sealing ring 22... The inner surface of the metal tube 16 is in frictional contact with the outer surface of the metal tube 16; the diameter adjuster includes an adjusting ring 25 and multiple extrusion components; the adjusting ring 25 is sleeved on the outside of the metal tube 16 and fixedly connected to the outer casing 9; the air valve is located on the side of the adjusting ring 25 near the flexible head; the inner diameter of the adjusting ring 25 gradually increases from the end near the flexible head to the end away from the flexible head; multiple extrusion components are arranged in a circumferential array around the axis of the metal tube 16; the extrusion components are located on the side of the adjusting ring 25 away from the flexible head; the extrusion components include 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 that matches the slide rod 28; the slide rod 28 is slidably installed in the sliding hole 40, with one end extending into the interior of the metal tube 16 and the other end extending into the exterior of the metal tube 16; the extended line of the axis of the slide rod 28 passes perpendicularly through the axis of the metal tube 16; a 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 near the hose 5 to the end near the metal tube 16; a wedge block 27 is placed outside the metal tube 16 and fixedly connected to the slide rod 28; a spring is placed outside the metal tube 16. The part is sleeved on the slide rod 28, with one end abutting against the wedge block 27 and the other end abutting against the metal tube 16; the thickness of the wedge block 27 gradually decreases from the end near the adjusting ring 25 to the other end; the outer surface of the wedge block 27 is provided with a guide slope that matches the inner surface of the adjusting ring 25, and slides against the inner surface 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 an 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 positioning pin 6 is inserted into the pin hole, the sealing ring 22 blocks the third air hole 41, sealing the air inlet pipe 23. After the positioning pin 6 is pulled out, the pressing wheel 8 pushes the metal tube 16 inward, and the wedge block 27 slides against the inner side of the adjusting ring 25, so that the wedge block 27 moves along the axis of the slide rod 28 toward the axis of the metal tube 16. The trapezoidal pressure block 24 squeezes the hose 5, making the diameter of the hose 5 smaller. Under the influence of the shape of the trapezoidal pressure block 24, the hose 5 at this point 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 drawn into the hose 5 under negative pressure and sprayed out with the high-speed flowing flushing liquid.

[0055] In this embodiment, an air intake channel is provided on the outer casing 9; a filter screen 3 is fixedly installed on the air intake channel to prevent external pollutants from mixing into the rinsing liquid.

[0056] In this embodiment, eight transmission components are configured to achieve eight directions of adjustment of the rinsing angle.

[0057] In this embodiment, a fourth spring 31 is sleeved on the positioning 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 positioning pin 6. After the positioning pin 6 is released, the fourth spring 31 presses the positioning pin 6 into the pin hole to prevent the positioning pin 6 from falling out accidentally.

[0058] In this embodiment, the control component also includes a protective sleeve 7; one end of the protective sleeve 7 is fixedly connected to the wheel 8, and the other end is fixedly connected to the outer shell 9; the transmission rod 33 is located inside the protective sleeve 7.

[0059] How to use

[0060] Internal wound irrigation mode:

[0061] 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;

[0062] Press the press-type control valve 11 on the outer casing 9, and the liquid supply unit 1 delivers the flushing liquid through the hose 5 and sprays it out.

[0063] The thumb moves the rocker arm 35, which drives the specific transmission rod 33 to compress through the deflection of the wheel 8. The linkage steel wire 13 pulls the magnetic repulsion collar 4, realizing the 0°-30° directional bending of the front end of the hose 5 (adjustable in 8 directions) for precise flushing of deep wounds.

[0064] Skin surface bubble rinse mode:

[0065] Pull out the positioning pin 6 to release the lock on the metal tube 16;

[0066] Pressing the wheel 8 towards the outer casing 9 causes the metal tube 16 to move axially inward.

[0067] The conical surface of the adjusting ring 25 pushes the wedge block 27 to radially contract → the trapezoidal pressure block 24 squeezes the hose 5 to form a Venturi neck;

[0068] The third air hole 41 is connected to the air chamber of the annular valve body 19, and external air is drawn in through the filter screen;

[0069] The flushing fluid flowing at high speed through the constricted area generates negative pressure, which mixes air into the fluid flow and forms bubbles that are ejected.

[0070] Operation terminated:

[0071] Release the push-button control valve 11 to stop the liquid supply;

[0072] After rinsing the skin, the positioning pin 6 must be reinserted to ensure that the airway is completely closed in wound mode.

Claims

1. A trauma orthopedic wound cleaning device, comprising a liquid supply unit (1) and a spray gun (2), wherein the spray gun (2) is connected to the liquid supply unit (1) via a liquid supply pipe, characterized in that, The spray gun (2) includes: The outer shell (9) has a handle (10) at the bottom for medical personnel to hold; The water outlet assembly includes a hose (5) and a metal pipe (16); the metal pipe (16) is slidably installed in the housing (9) with its front end extending to the outside of the housing (9); the hose (5) is fixed inside 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. Angle adjustment mechanism includes a flexible head, a transmission component, and a control component; 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 component is installed on the metal tube (16) at the end away from the flexible head; the transmission component is slidably installed on the metal tube (16), with one end connected to the flexible head and the other end connected to the control component; multiple transmission components are configured and arranged in a circular array around the axis of the metal tube (16); shaking the control component drives the transmission component to move, which in turn drives the flexible head to bend and deform, and the flexible head causes the front end of the hose (5) to bend. A gas-liquid mixing mechanism is fitted onto the outside of the metal tube (16) and abuts against the outer side of the hose (5); when the control component is pressed toward the housing (9), the liquid flow rate in the hose (5) is changed by the gas-liquid mixing mechanism, so that air enters the hose (5) and is sprayed out together with the flushing liquid; The transmission assembly includes a transmission rod (33) and a steel wire (13); the metal tube (16) is provided with a transmission hole (42) for accommodating the transmission rod (33), 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 near 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 includes a wheel (8), a rocker arm (35), a plunger (38), an extension rod (37), and a spherical bearing (36); the rocker arm (35) is fixed to the wheel (8); the plunger (38) is fixed inside the metal tube (16) at one end away from the flexible head; the spherical bearing (36) is mounted on the wheel (8); one end of the extension rod (37) is fixed to the plunger (38), and the other end is mounted in the spherical bearing (36); the axes of the plunger (38), the wheel (8), the rocker arm (35), and the metal tube (16) coincide; the transmission rod (33) is on... An elbow (34) is integrally provided at one end near the wheel (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 (8); a second spring (32) is sleeved on the transmission rod (33), and a blind hole is provided on the metal tube (16) to accommodate the second spring (32); the second spring (32) is placed in the blind hole, one end 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) toward the wheel (8); The flexible head includes multiple collars (4); the collars (4) are sleeved and fixed on the hose (5); the multiple collars (4) are arranged parallel to each other at intervals; the collars (4) are provided with multiple wire holes, the multiple wire holes are arranged corresponding to multiple steel wires (13), and wear-resistant bushings (14) adapted to the steel wires (13) are provided in the wire holes, and the steel wires (13) are slidably arranged through the wear-resistant bushings (14); multiple magnet rings (15) are fixedly provided on the end face of the collars (4) corresponding to the multiple wire holes, and the axis of the magnet rings (15) coincides with the axis of the wire holes; the corresponding magnet rings (15) on two adjacent collars (4) are magnetically repelled by 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 collars (4) at both ends.

2. The trauma orthopedic wound cleaning device as described in claim 1, characterized in that, A guide block (12) is fixedly installed inside the outer shell (9). The guide block (12) has a guide hole that matches the metal tube (16). The metal tube (16) is slidably installed in the guide hole. A retaining ring (29) is fixedly installed 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). 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 installed on the outer shell (9). (6) The retaining ring (29) is provided with a pin hole that matches the positioning pin (6). 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 from the pin hole, the control component is pressed, and the metal tube (16) moves along the axis of the guide hole. The first spring (30) is squeezed and contracted. After the control component is released, the first spring (30) pushes the metal tube (16) to reset.

3. The trauma orthopedic wound cleaning device as described in claim 1, characterized in that, A push-button control valve (11) is installed on the housing (9); the hose (5) and the liquid supply unit (1) are connected through the push-button control valve (11).

4. The trauma orthopedic wound cleaning device as described in claim 3, characterized in that, The metal tube (16) has a through hole at one end near the control component. One end of the flexible tube (5) extends from the inside of the metal tube (16) through the through hole to the outside of the metal tube (16) and connects to the push-button control valve (11).

5. The trauma orthopedic wound cleaning device as described in claim 1, characterized in that, The gas-liquid mixing mechanism includes a gas valve and a diameter regulator; the gas valve is sleeved outside the metal tube (16); the gas valve includes an annular valve body (19) and a support part (17); the support part (17) is fixed to one side of the annular valve body (19) and fixedly connected to the outer 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, 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 of the annular valve body (19) at the end away from the flexible head, the inner side of the sealing ring (22) is... The side of the metal tube (16) is in frictional contact with the outer surface of the metal tube (16); the diameter adjuster includes an adjusting ring (25) and multiple extrusion components; the adjusting ring (25) is sleeved on the outside of the metal tube (16) and fixedly connected to the outer shell (9); the air valve is located on the side of the adjusting ring (25) near the flexible head; the inner diameter of the adjusting ring (25) gradually increases from the end near the flexible head to the end away from the flexible head; multiple extrusion components are arranged in a circumferential array with the axis of the metal tube (16) as the center; the extrusion components are located on the side of the adjusting ring (25) away from the flexible head; the extrusion components include 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 to match the sliding rod (28); the sliding rod (28) is slidably installed in the sliding hole (40), with one end extending into the interior of the metal tube (16) and the other end extending into the exterior of the metal tube (16); the extended line of the axis of the sliding rod (28) passes perpendicularly through the axis of the metal tube (16); a 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 near the hose (5) to the end near the metal tube (16); a wedge block (27) is placed outside the metal tube (16) and fixedly connected to the sliding rod (28); a spring is placed outside the metal tube (16). It is fitted onto the slide bar (28), with one end abutting against the wedge block (27) and the other end abutting against the metal tube (16); the thickness of the wedge block (27) gradually decreases from the end near the adjusting ring (25) to the other end; the outer side of the wedge block (27) is provided with a guide slope that matches the inner side of the adjusting ring (25), and slides against 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 an 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).

6. The trauma orthopedic wound cleaning device as described in claim 5, characterized in that, An air intake channel is provided on the outer shell (9); a filter screen (3) is fixedly installed on the air intake channel.

7. The trauma orthopedic wound cleaning device as described in claim 1, characterized in that, The transmission assembly is configured with 8 units.

8. The trauma orthopedic wound cleaning device as described in claim 2, characterized in that, A fourth spring (31) is sleeved on the positioning 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 positioning pin (6).

9. A trauma orthopedic wound cleaning device as described in claim 1, characterized in that, The control assembly also includes a protective sleeve (7); one end of the protective sleeve (7) is fixedly connected to the wheel (8), and the other end is fixedly connected to the outer shell (9); the transmission rod (33) is located inside the protective sleeve (7).

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