Debridement device for traumatology department

Abstract

The invention belongs to the technical field of biomedical engineering, and particularly relates to a debridement device for trauma surgery, which comprises a biomedical engineering debridement instrument, and the biomedical engineering debridement instrument comprises a high-pressure pulse flusher, an ultrasonic debridement knife, a water jet scalpel system and a negative pressure aspirator; the debridement method of the biomedical engineering debridement instrument comprises the following debridement steps: S1, preliminary evaluation and preparation: evaluating a patient, exposing a wound surface, checking the intact function of equipment, connecting a pipeline, preparing sterile flushing fluid, and selecting a proper debridement head; s2, performing mechanical flushing through a high-pressure pulse flusher, and loosening and removing necrotic tissue fragments in the wound surface by utilizing vibration and pressure generated by pulses; and S3, an ultrasonic debridement knife is used, the cavitation effect is generated through high-frequency ultrasonic vibration, inactivated tissue and biological membranes are selectively broken and removed, and the device solves the problem that in the current debridement process, blockage is generated when cleaning waste liquid and necrotic tissue fragments are sucked through negative pressure.

Description

Technical Field

[0001] This invention belongs to the field of biomedical engineering technology, specifically relating to a debridement device for trauma surgery. Background Technology

[0002] Biomedical engineering involves medical devices that mainly include imaging diagnostic equipment, physiological parameter monitoring equipment, treatment equipment and life support equipment. Among them, treatment equipment includes debridement devices, which are suitable for treating various external injuries, surgical wounds, infected wounds and lesions. These include high-pressure pulse irrigators, ultrasonic debridement knives, water jet systems and negative pressure suction devices. Waste liquid and necrotic tissue fragments generated during cleaning are suctioned out by the negative pressure suction device. Because necrotic tissue fragments are irregular in size, they can easily cause blockages during aspiration, requiring interruptions to the surgical procedure and significantly reducing safety. This phenomenon has become a problem that urgently needs to be solved by researchers in this field. Summary of the Invention

[0003] The purpose of this invention is to provide a debridement device for trauma surgery to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a debridement device for trauma surgery, comprising a biomedical engineering debridement instrument, wherein the biomedical engineering debridement instrument includes a high-pressure pulse irrigator, an ultrasonic debridement scalpel, a water jet system, and a negative pressure suction device; the debridement steps of the biomedical engineering debridement instrument include: Step S1, preliminary assessment and preparation, including patient assessment and wound exposure, checking the equipment for proper functioning, connecting tubing, preparing sterile irrigation solution, and selecting an appropriate debridement head; Step S2, mechanical irrigation using the high-pressure pulse irrigator, utilizing the vibration and pressure generated by the pulse... Step S3: Loosen and remove necrotic tissue fragments from the wound; Step S4: Use an ultrasonic debridement scalpel to selectively break up and remove inactive tissue and biofilms through high-frequency ultrasonic vibration to retain viable tissue. Then use a water jet system to cut and debride with high-speed and precise saline solution; Step S5: Use a negative pressure suction device to aspirate and discharge the cleaning waste liquid and necrotic tissue fragments; Step S6: Dry the wound with sterile gauze, observe the bleeding after debridement, assess tissue viability, and apply dressings, drainage, and perform primary suturing and skin grafting as needed.

[0005] The present invention further explains that in step S4, after precise debridement, a pulse irrigator is used again for low-pressure irrigation to remove all tissue debris and residues. After evaluation by a doctor, if any residues are found, steps S2 to S4 are repeated.

[0006] The present invention further describes that the negative pressure suction device includes an anti-blocking mechanism, which includes an anti-blocking cavity, a drainage tube, and a negative pressure tube. An output shaft is mounted on the inner wall bearing of the anti-blocking cavity. One end of the output shaft is connected to the output end of an external drive motor, and the other end is connected to a turntable. Three blades are fixedly fitted on the outer side of the turntable. The drainage tube is connected to the left side of the anti-blocking cavity, and the negative pressure tube is connected to the right side of the anti-blocking cavity and connected to an external negative pressure pump.

[0007] The present invention further describes that the front side of the turntable is provided with a countersunk hole and the middle is provided with a through hole, and the output shaft is slidably connected in the through hole; the front end of the output shaft is fixed with a push-pull rod, the inner wall of the countersunk hole is provided with a trapezoidal groove and an annular groove, the trapezoidal groove and the annular groove are connected, the front end of the push-pull rod is spherical and is slidably connected in the trapezoidal groove and the annular groove, and a through groove is connected between the trapezoidal groove and the annular groove.

[0008] The present invention further describes that a disc is fixed on the outer side of the output shaft, and sliding holes are provided on both the left and right sides of the disc, and sliding rods are slidably connected inside each disc; the sliding rods are fixedly installed on the turntable, and springs are sleeved on their outer sides.

[0009] The present invention further illustrates that the center of the disk is concave, and protrusions are fixed on both the left and right sides of the inner wall of the concave surface.

[0010] The present invention further illustrates that both of the protrusions are magnetic, and the turntable is made of a magnetic metal material.

[0011] The present invention further illustrates that the magnetic poles of the two bumps are opposite.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention uses a negative pressure suction device to aspirate and discharge cleaning waste liquid and necrotic tissue fragments, while cutting the necrotic tissue fragments to reduce their volume, thereby accelerating the suction efficiency and avoiding blockage during the suction process that could affect the safety of the operation. At the same time, the rotary table moves back and forth, thereby driving the blade to move back and forth, dispersing and cutting the necrotic tissue fragments more thoroughly and breaking them into smaller pieces, further enhancing the anti-blockage effect. After the rotary table moves, it squeezes and grinds the necrotic tissue fragments between its front side and the inner wall of the anti-blockage cavity, significantly reducing the volume of the necrotic tissue fragments. This makes it easier for the external negative pressure pump to aspirate, and relatively reduces the operating energy consumption of the negative pressure pump. The suction intensity of the external negative pressure pump can be relatively reduced to avoid causing patient discomfort and further ensure the safety of the operation. The eddy currents attract necrotic tissue fragments around the spring, facilitating spring deformation and preventing disruption to smooth operation. Simultaneously, the external negative pressure pump provides strong suction, effectively extracting the necrotic tissue fragments attracted by the eddy currents. Furthermore, the magnetism of the protrusions applies magnetic attraction to the turntable, preventing the spring's force from affecting the smooth sliding of the push-pull rod within the trapezoidal groove during turntable displacement, resulting in more stable operation. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the debridement steps of the biomedical engineering debridement instrument of the present invention; Figure 2 This is a plan view of the anti-blocking mechanism of the present invention; Figure 3 This is a schematic diagram of the internal structure of the anti-clogging cavity of the present invention; Figure 4 This is an exploded view of the internal structure of the anti-blocking cavity of the present invention; Figure 5 This is a cross-sectional view of the turntable and disk of the present invention; Figure 6 This is a schematic diagram illustrating the arrangement of the annular groove, trapezoidal groove, and through groove of the present invention; In the diagram: 1. Anti-clogging cavity; 111. Output shaft; 112. Turntable; 113. Blade; 114. Push-pull rod; 115. Trapezoidal groove; 116. Annular groove; 117. Through groove; 118. Disc; 119. Slide rod; 121. Spring; 131. Protrusion; 2. Drainage tube; 3. Negative pressure tube. Detailed Implementation

[0014] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] Please see Figures 1-6 The present invention provides a technical solution: a debridement device for trauma surgery, including a biomedical engineering debridement instrument, which includes a high-pressure pulse irrigator, an ultrasonic debridement scalpel, a water jet system, and a negative pressure suction device; The debridement steps of a biomedical engineering debridement device include: Step S1: Preliminary assessment and preparation, including patient assessment and wound exposure, checking that the equipment is in good working order, connecting tubing, preparing sterile irrigation solution, and selecting an appropriate debridement tip; Step S2: Mechanical irrigation is performed using a high-pressure pulse irrigator. The vibration and pressure generated by the pulse are used to loosen and remove necrotic tissue fragments from the wound. Step S3: Use an ultrasonic debridement scalpel to generate a cavitation effect through high-frequency ultrasonic vibration, selectively breaking and removing inactive tissue and biofilm while preserving active tissue. Then use a water jet system to cut and debride using high-speed and precise saline solution. Step S4: Use a negative pressure suction device to suck out and discharge the cleaning waste liquid and necrotic tissue fragments; Step S5: Dry the wound with sterile gauze, observe the bleeding after debridement, assess tissue viability, and cover with dressings, drain, or proceed with primary suturing and skin grafting as needed.

[0016] In step S4, after precise debridement, the pulse irrigator is used again for low-pressure irrigation to remove all tissue debris and residue. After evaluation by the doctor, if any residue is found, steps S2 to S4 are repeated.

[0017] The negative pressure suction device includes an anti-blocking mechanism, which includes an anti-blocking chamber 1, a drainage tube 2, and a negative pressure tube 3. An output shaft 111 is mounted on the inner wall bearing of the anti-blocking chamber 1. One end of the output shaft 111 is connected to the output end of an external drive motor, and the other end is connected to a turntable 112. Three blades 113 are fixedly fitted to the outer side of the turntable 112. The drainage tube 2 is connected to the left side of the anti-blocking chamber 1, and the negative pressure tube 3 is connected to the right side of the anti-blocking chamber 1 and connected to the external negative pressure pump. When the negative pressure suction device is running, the external negative pressure pump starts, and the cleaning waste liquid and necrotic tissue fragments are drawn into the anti-blockage chamber 1 through the drainage pipe 2, and then discharged through the negative pressure pipe 3. During the aspiration process, after the cleaning waste liquid and necrotic tissue fragments enter the anti-clogging chamber 1, the external drive motor runs, driving the output shaft 111 to rotate at high speed. The output shaft 111 drives the turntable 112 to rotate, thereby driving the three blades 113 to rotate at high speed to cut the necrotic tissue fragments, thereby reducing their volume, accelerating the aspiration efficiency, and avoiding blockage during the aspiration process that could affect the safety of the surgery.

[0018] The front side of the turntable 112 is provided with a countersunk hole and the middle is provided with a through hole, and the output shaft 111 is slidably connected in the through hole; A push-pull rod 114 is fixed to the front end of the output shaft 111. The inner wall of the countersunk hole is provided with a trapezoidal groove 115 and an annular groove 116. The trapezoidal groove 115 and the annular groove 116 are connected. The front end of the push-pull rod 114 is spherical and is slidably connected in the trapezoidal groove 115 and the annular groove 116. A through groove 117 is connected between the trapezoidal groove 115 and the annular groove 116.

[0019] A disc 118 is fixed on the outer side of the output shaft 111. Sliding holes are provided on both the left and right sides of the disc 118, and sliding rods 119 are slidably connected inside each of them. The slide bar 119 is fixedly installed on the turntable 112, and a spring 121 is sleeved on its outer side; When the output shaft 111 rotates, it drives the slide rod 119 to rotate around its center via the disk 118, thereby driving the turntable 112 to rotate. Simultaneously, the front end of the push-pull rod 114 of the output shaft 111 slides within the annular groove 116. When it slides to the trapezoidal groove 115, the front end of the push-pull rod 114 moves along the direction of the trapezoidal groove 115, thereby displacing the turntable 112. The turntable 112 then drives the slide rod 119 to slide within the sliding hole, causing the spring 121 to deform under compression until the push-pull rod 119... When the front end of 14 moves to the end of the trapezoidal groove 115, it reaches the position of the through groove 117. The push-pull rod 114 is no longer blocked by the trapezoidal groove 115, and the spring 121 generates a reaction force, causing the turntable 112 to quickly return to its original position. At the same time, the push-pull rod 114 re-enters the annular groove 116 through the through groove 117, and the turntable 112 moves back and forth, thereby driving the blade 113 to move back and forth, dispersing and cutting the necrotic tissue fragments, making the cutting more comprehensive, cutting the necrotic tissue fragments into smaller pieces, and further enhancing the anti-clogging effect. Meanwhile, after the turntable 112 moves, it squeezes and grinds the necrotic tissue fragments between its front side and the inner wall of the anti-blocking cavity 1. The volume of the necrotic tissue fragments is reduced to make it easier for the external negative pressure pump to aspirate, and the operating energy consumption of the negative pressure pump is reduced. The suction intensity of the external negative pressure pump can be reduced to reduce the suction intensity, avoid causing discomfort to the patient, and further ensure the safety of the operation.

[0020] The center of the disc 118 is concave, and protrusions 131 are fixed on both the left and right sides of the inner wall of the concave surface. When the disc 118 rotates at high speed, it drives the concave protrusion 131 to rotate at high speed around the center of the output shaft 111. During the rotation, eddies are generated, which adsorb the necrotic tissue fragments around the spring 121, thus facilitating the deformation of the spring 121 and avoiding affecting the smoothness of the operation. At the same time, the external negative pressure pump has a large suction force, which can smoothly extract the necrotic tissue fragments adsorbed by the eddies, thereby playing the role of concentrating the necrotic tissue fragments.

[0021] Both protrusions 131 are magnetic, and the turntable 112 is made of magnetic metal. When the turntable 112 moves back and forth, the magnetism of the protrusion 131 applies a magnetic attraction force to the turntable 112, thereby preventing the force generated by the spring 121 from affecting the smooth sliding of the push-pull rod 114 in the trapezoidal groove 115 when the turntable 112 moves, and making the operation of the structure more stable.

[0022] The magnetic poles of the two bumps 131 are opposite; The two protrusions 131 generate magnetic attraction, which is propelled by magnetohydrodynamics, thereby enhancing the turbine and increasing the adsorption strength of necrotic tissue fragments. This effectively prevents necrotic tissue fragments from entering the interior of the spring 121 and affecting its deformation when the spring 121 is deformed, making the anti-blocking mechanism operate more smoothly.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A debridement device for trauma surgery, comprising a biomedical engineering debridement instrument, characterized in that: The biomedical engineering debridement device includes a high-pressure pulse irrigator, an ultrasonic debridement scalpel, a water jet system, and a negative pressure suction device. The debridement steps of the biomedical engineering debridement device include: Step S1: Preliminary assessment and preparation, including patient assessment and wound exposure, checking that the equipment is in good working order, connecting tubing, preparing sterile irrigation solution, and selecting an appropriate debridement tip; Step S2: Mechanical irrigation is performed using a high-pressure pulse irrigator. The vibration and pressure generated by the pulse are used to loosen and remove necrotic tissue fragments from the wound. Step S3: Use an ultrasonic debridement scalpel to generate a cavitation effect through high-frequency ultrasonic vibration, selectively breaking and removing inactive tissue and biofilm while preserving active tissue. Then use a water jet system to cut and debride using high-speed and precise saline solution. Step S4: Use a negative pressure suction device to suck out and discharge the cleaning waste liquid and necrotic tissue fragments; Step S5: Dry the wound with sterile gauze, observe the bleeding after debridement, assess tissue viability, and cover with dressings, drain, or proceed with primary suturing and skin grafting as needed.

2. The debridement device for trauma surgery according to claim 1, characterized in that: In step S4, after precise debridement, the pulse irrigator is used again for low-pressure irrigation to remove all tissue debris and residue. After evaluation by the doctor, if any residue is found, steps S2 to S4 are repeated.

3. A debridement device for trauma surgery according to claim 2, characterized in that: The negative pressure suction device includes an anti-blocking mechanism, which includes an anti-blocking cavity (1), a drainage tube (2), and a negative pressure tube (3). The inner wall bearing of the anti-blocking cavity (1) is equipped with an output shaft (111). One end of the output shaft (111) is connected to the output end of an external drive motor, and the other end is connected to a turntable (112). Three blades (113) are fixedly fitted on the outer side of the turntable (112), the drainage tube (2) is connected to the left side of the anti-blocking cavity (1), and the negative pressure tube (3) is connected to the right side of the anti-blocking cavity (1) and connected to an external negative pressure pump.

4. A debridement device for trauma surgery according to claim 3, characterized in that: The turntable (112) has a countersunk hole on its front side and a through hole in the middle, and the output shaft (111) is slidably connected in the through hole; The output shaft (111) has a push-pull rod (114) fixed at its front end. The inner wall of the countersunk hole is provided with a trapezoidal groove (115) and an annular groove (116). The trapezoidal groove (115) and the annular groove (116) are connected. The front end of the push-pull rod (114) is spherical and is slidably connected in the trapezoidal groove (115) and the annular groove (116). A through groove (117) is connected between the trapezoidal groove (115) and the annular groove (116).

5. A debridement device for trauma surgery according to claim 4, characterized in that: A disc (118) is fixed on the outside of the output shaft (111). Sliding holes are provided on both the left and right sides of the disc (118), and sliding rods (119) are slidably connected inside each disc. The slide bar (119) is fixedly installed on the turntable (112) and a spring (121) is sleeved on its outer side.

6. A debridement device for trauma surgery according to claim 5, characterized in that: The center of the disk (118) is concave, and protrusions (131) are fixed on both the left and right sides of the inner wall of the concave surface.

7. A debridement device for trauma surgery according to claim 6, characterized in that: Both of the bumps (131) are magnetic, and the turntable (112) is made of magnetic metal.

8. A debridement device for trauma surgery according to claim 7, characterized in that: The two bumps (131) have opposite magnetic poles.

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