Porous atomizing nozzle

Abstract

The invention discloses a porous atomizing nozzle, which comprises atomizing heads capable of atomizing liquid and a spray pipe for supplying the liquid to the atomizing heads, and the atomizing heads are respectively arranged at the end part of the spray pipe and on the side wall of a shaft. According to the invention, all-directional spraying can be carried out in the abdominal cavity, all-directional spraying can be carried out on the abdominal cavity of a patient in the pressurized atomization treatment process, compared with a current single-hole spray head, the upper wall of the abdominal cavity can receive liquid medicine more easily, the treatment efficiency is better, angle adjustment operation is not needed, and the operation is more convenient. And the phenomenon that side effects are easily generated during treatment operation is fundamentally eradicated, and the device has the advantages of being simple in structure, convenient to use, high in spraying efficiency and capable of being applied to multiple fields.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a multi-hole atomizing nozzle. Background Art

[0002] Atomizing nozzles mainly use high-frequency vibration, pressure difference or airflow principles to atomize liquids. As a device that can efficiently atomize liquids into tiny droplets and evenly distribute them, they have shown broad market prospects in agricultural irrigation, industrial cooling and spraying, air purification and disinfection, personal care and beauty, and other environmental protection, energy saving and intelligent fields, especially in the fields of medical treatment and drug delivery.

[0003] In pressurized intraperitoneal aerosol chemotherapy (PIPAC), chemotherapy drugs are pressurized and delivered into the peritoneal cavity in the form of aerosols, allowing the drugs to directly contact, penetrate the peritoneum and penetrate into the tumor tissue, thereby exerting a therapeutic effect. Its principle is mainly based on the "peritoneum-plasma" barrier, which can maintain the intraperitoneal drug concentration at a high level for a long time, increase the direct cytotoxicity of chemotherapy drugs to peritoneal metastasis, and reduce systemic adverse reactions.

[0004] Currently, during pressurized atomization treatment, the doctor places the nozzle into the patient's abdominal cavity through an incision, pressurizes the liquid using a booster pump or peristaltic pump, and sprays the liquid out from a special atomization nozzle, allowing the drug to dissolve more evenly in the abdominal cavity, thereby encapsulating the tumor and preventing it from spreading.

[0005] The nozzles currently used are basically single-hole or one-way spray. During actual treatment, due to the single spray direction and the patient lying flat on the operating table, the storm formed in the abdominal cavity when the drug is sprayed directly covers the bottom of the abdominal cavity. Therefore, both the direct coverage area during spraying and the circulation effect of the gas in the abdominal cavity are still relatively insufficient; especially since such gas is difficult to flow to the top of the abdominal cavity, and peritoneal cancer is a cancer metastasis, it will grow everywhere in the abdominal cavity, so the treatment effect will be greatly reduced.

[0006] The common treatment method is for the doctor to adjust the spray direction by hand to aim at the tumor, but this method can easily cause the nozzle itself to stretch the incision, or cause leakage at the incision, which can easily have an adverse effect on the health of patients and medical staff in the operating room, and of course affect the treatment process. Even if these difficulties are overcome, it is still difficult for the gas to flow fully through the top of the abdominal cavity, especially where the incision is located, and overcoming these difficulties requires operational experience. After all, the pressurized atomization treatment process generally takes about 10 minutes. The treatment time and dosage are still accurately calculated based on the patient's own situation. If the operation is too gentle, it is difficult to achieve sufficient results, and the drug administration time and dosage cannot be extended. In addition, in fact, in the hospital, medical staff usually fix the nozzle on the incision and stay away from the patient area, and do not operate the spray direction of the nozzle.

[0007] For modern medical surgery, high treatment efficiency and low side effects are the common goals pursued by everyone. In other application fields of spray technology, such as wound drug delivery, spraying, agriculture, environmental governance, electric cutting and smoke removal, there is also the same pursuit of spray efficiency. Therefore, in order to further improve the reliability and safety of current abdominal pressure atomization treatment surgery, and to meet the demand for spray efficiency of spray technology in multiple fields, this application proposes a multi-hole atomizing nozzle that can achieve multi-directional spraying. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings existing in the prior art, and the proposed multi-hole atomizing nozzle can spray all-round into the abdominal cavity in the field of abdominal pressurized atomization treatment, so as to realize all-round spraying into the patient's abdominal cavity during pressurized atomization treatment. Compared with the current single-hole nozzle, it is not only easier for the upper wall of the abdominal cavity to receive the medicine, but also has better treatment efficiency, and does not require angle adjustment operation, fundamentally eliminating the phenomenon of side effects that are easy to occur during treatment operations. It has the advantages of simple structure and easy use, and also has the advantages of high spray efficiency and can be applied to multiple fields.

[0009] In order to achieve the above object, the present invention provides the following technical solutions: The multi-hole atomizing nozzle comprises an atomizing head capable of atomizing liquid and a nozzle for supplying liquid to the atomizing head. The atomizing head is respectively arranged on the end of the nozzle and the side wall of the shaft.

[0010] Through the above structure, a nozzle structure is constructed that can spray all-round into the abdominal cavity, so that the patient's abdominal cavity can be sprayed all-round during pressurized atomization treatment. Compared with the current single-hole nozzle, it is not only easier for the upper wall of the abdominal cavity to receive the medicine, but also has better treatment efficiency. It also does not require angle adjustment operations, and fundamentally eliminates the phenomenon of side effects that are easy to occur during treatment operations. It has the advantages of simple structure and easy use, and also has the advantages of high spray efficiency and can be applied to multiple fields.

[0011] Preferably, the atomizing heads located on the side wall of the nozzle shaft are distributed on the nozzle in a ring shape.

[0012] Through the above structure, the function of uniformly spraying around the abdominal cavity can be achieved through atomizing heads of the same specifications, and this makes the spray head easier to produce.

[0013] Preferably, the surface of the atomizing head located on the axial side wall of the nozzle does not protrude from the axial side wall of the nozzle.

[0014] Through the above structure, the porous atomizing nozzle can also meet the original incision requirements of abdominal pressure treatment. No larger incision is required to apply the nozzle, and no side effects will be caused to the patient's postoperative wound recovery.

[0015] Preferably, a blind hole for fixing and mounting the atomizing head is provided on the axial side wall of the nozzle, and a liquid outlet hole for connecting the inside of the nozzle with the atomizing head is provided at the bottom of the blind hole.

[0016] The above structure provides a position for installing the atomizing head, and ensures that the atomizing head does not protrude from the axial side wall of the nozzle after installation. The liquid outlet hole allows the liquid in the nozzle to be transported to the atomizing head.

[0017] Preferably, a liquid supply channel is provided in the nozzle, and all the liquid outlet holes are connected to the liquid supply channel.

[0018] Through the above structure, the atomization effects of all atomization heads can be consistent, so the effect of abdominal pressure atomization treatment can be stabilized.

[0019] Preferably, the atomizing head comprises a nozzle and a swirl core arranged in the nozzle, and the liquid flows through the side wall of the swirl core through the liquid outlet hole, forms a swirl in the nozzle, and is then sprayed out from the spray hole on the nozzle.

[0020] Through the above structure, it is achieved that the liquid medicine sprayed by all the atomizing heads meets the atomization effect required by the current pressurized atomization treatment.

[0021] Preferably, the surface of the swirl core is provided with a swirl groove which can penetrate the axial side wall of the swirl core and the end face of the swirl core close to the spray hole, and the two ends of the swirl groove are at different diameters of the end face of the swirl core.

[0022] Through the above structure, the liquid can form a vortex after passing through the cyclone core, so as to support the liquid medicine to form a spray that meets the requirements.

[0023] Preferably, the swirl grooves are evenly distributed on the swirl core in an annular shape.

[0024] Through the above structure, the spray effect formed by the liquid flowing through the swirl groove is better, and is more in line with the current requirements for spray in pressurized atomization therapy.

[0025] Preferably, a plurality of guide surfaces are provided on the axial side wall of the swirl core, and the opening at one end of the swirl groove is located in the guide surface.

[0026] The above structure ensures that the liquid can pass between the swirl core and the inner wall of the nozzle.

[0027] Preferably, the inner wall of the nozzle is provided with a liquid guide groove, the spray hole is opened in the bottom of the liquid guide groove, and the outer diameter R of the liquid guide groove is not less than twice the distance H from the notch on the end face of the swirl groove corresponding to the swirl core to the swirl core axis.

[0028] Through the above structure, it is ensured that the space for forming the vortex is not affected by the liquid pressure, thereby ensuring that the spray quality is guaranteed.

[0029] Preferably, the swirl groove is a straight groove.

[0030] Through the above structure, the processing of the swirl core in the atomizing head will be easier, and it is also less likely to accumulate liquid medicine, causing more difficulties in cleaning the nozzle when reused, which is beneficial to reducing both production costs and use costs.

[0031] Preferably, the cross section of the liquid-conducting groove is tapered.

[0032] Through the above structure, the cost of reuse and production will be lowered while ensuring that the spray quality can meet the requirements of pressurized atomization treatment.

[0033] Preferably, the swirl core includes a core column, a convex ring arranged on the end face of the core column close to the spray hole, and a swirl groove that can penetrate inside and outside the convex ring. The inner wall of the nozzle is provided with a liquid guide groove that penetrates the spray hole, and the outer diameter of the liquid guide groove does not exceed the outer diameter of the outer ring of the convex ring.

[0034] Through the above structure, a simple and ingenious structure is used to achieve a stable atomization angle during atomization operation, and a series of problems affecting the stability of the atomization angle caused by machining are avoided by bypassing the idea of ​​improving machining accuracy, so that the cost is greatly reduced, and the negative impact on operation efficiency in various fields caused by the inability to maintain a stable atomization angle, such as difficulty in operation and insufficient spray quality during spraying operations, is eliminated.

[0035] Preferably, the nozzle is further provided with a liquid channel located on the side of the core column away from the spray hole, and the liquid forms a vortex after flowing through the liquid channel and then enters the swirl groove.

[0036] Through the above structure, the processing and forming of the liquid channel can be implemented relatively easily.

[0037] Preferably, the liquid channel is in the shape of a spiral groove and is distributed on the axial side surface of the core column.

[0038] Through the above structure, two vortices are formed, allowing the liquid to experience a centrifugal force enhancement before entering the swirl groove to form a vortex. This not only allows the liquid to instantly fill the entire nozzle and achieve instant mist output, but also greatly improves the quality of the entire mist output.

[0039] Preferably, the outer diameter of the end of the core column away from the convex ring matches the inner diameter of the nozzle.

[0040] Through the above structure, the quality of the vortex formed for the first time is better, thereby increasing the centrifugal force before entering the swirl groove, so that the overall spray quality is improved.

[0041] Preferably, the atomizing head further comprises a spring arranged on the swirl core and away from one end of the spray hole.

[0042] Through the above structure, the swirl core and the front end of the nozzle are kept in a state of pressure contact, thereby being able to resist changes in the impact force on the swirl core when the liquid pressure changes, ensuring that the space between the swirl core and the front end of the nozzle is unlikely to change and affect the vortex quality, thereby ensuring the spray quality. Such a design scheme also makes the atomizing nozzle suitable for various pressurized equipment.

[0043] Preferably, it also includes a liquid supply rod detachably connected to the liquid inlet end of the nozzle, for supplying liquid to the nozzle.

[0044] Through the above structure, the nozzle and atomizing head with very fine structure can be easily produced, assembled and replaced during repeated use, and can provide a variety of usage methods to meet the treatment methods of different situations.

[0045] Preferably, the outer diameter of the liquid supply rod does not exceed the outer diameter of the nozzle.

[0046] Through the above structure, the atomizing nozzle can easily pass through the incision to achieve full immersion in the abdominal cavity to perform spraying, and at the same time has a wider range of adaptability.

[0047] Preferably, the other end of the liquid supply rod is also provided with a connector for connecting a hose.

[0048] Through the above structure, the liquid supply rod can be easily connected to an external liquid medicine source.

[0049] Compared with the prior art, the present invention has the following beneficial effects: it can spray all-round into the abdominal cavity, and realize all-round spray into the patient's abdominal cavity during pressurized atomization treatment. Compared with the current single-hole nozzle, it is not only easier for the upper wall of the abdominal cavity to receive the medicine, but also has better treatment efficiency. Moreover, it does not require angle adjustment operation, and fundamentally eliminates the phenomenon that side effects are easily generated during treatment operations. It has the advantages of simple structure and easy use, and also has the advantages of high spray efficiency and can be applied to multiple fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 The spray demonstration diagram of the existing single-hole spray nozzle; Figure 2 This is a schematic diagram of the three-dimensional structure of the multi-hole atomizing nozzle proposed by the present invention; Figure 3 It is a schematic diagram of the three-dimensional assembly structure of the nozzle and the atomizing head in the multi-hole atomizing nozzle proposed by the present invention; Figure 4 An exploded view of the nozzle and the atomizing head in the multi-hole atomizing nozzle proposed by the present invention; Figure 5 Figure 4 Left view of; Figure 6 It is a schematic diagram of the three-dimensional structure of the atomizing head in the multi-hole atomizing nozzle proposed by the present invention; Figure 7 This is a left view of the structure of the multi-hole atomizing nozzle proposed by the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the nozzle in the multi-hole atomizing nozzle proposed by the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the swirl core in the porous atomizing nozzle proposed by the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of another embodiment of the swirl core in the porous atomizing nozzle proposed by the present invention.

[0051] In the figure: 1. atomizing head; 11. nozzle; 111. spray hole; 112. liquid guide groove; 12. swirl core; 121. swirl groove; 122. guide surface; 123. core column; 124. convex ring; 125. liquid channel; 13. spring; 2. Nozzle; 21. Blind hole; 211. Liquid outlet; 22. Liquid supply channel; 3. Liquid supply rod; 31. Connector. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] When the existing single-hole nozzle is used for pressurized atomization treatment surgery, the airflow direction in the abdominal cavity is as follows: Figure 1 As shown, it can be seen that the storm formed in the abdominal cavity when the medicine is sprayed directly covers the bottom of the abdominal cavity, and the gas has difficulty flowing to the top of the abdominal cavity, especially the incision.

[0054] Embodiment 1: See also Figure 2-4 The present invention provides the following technical solutions: a porous atomizing nozzle, comprising an atomizing head 1 for atomizing liquid and a nozzle 2 for supplying liquid to the atomizing head 1, wherein the atomizing head 1 is respectively arranged on the end of the nozzle 2 and the side wall of the shaft.

[0055] As an optional implementation scheme of the present invention, when performing a pressurized atomization treatment operation, the nozzle 2 is located inside the abdominal cavity, and the drug solution flows into the nozzle 2 after being pressurized, and dispersed into each atomizing head 1, and the atomizing head 1 atomizes the drug solution and sprays it into the abdominal cavity. Since the atomizing head 1 is arranged on the end face and the axial side wall of the nozzle 2 at the same time, the sprayed drug solution will not only be sprayed to the bottom of the patient's abdominal cavity, but also to the surrounding area of ​​the abdominal cavity and the upper wall of the abdominal cavity. The storm formed can completely cover all surfaces in the entire abdominal cavity, so that peritoneal cancer located at any position can receive the drug solution, and compared with the current single-hole spray method, the gas flow in the abdominal cavity of such a storm is much stronger, and the disordered fluidity is stronger, so the uniformity will be much better, and these advantages combined also make this nozzle not require manual adjustment by medical staff, so It will neither affect the patient's incision nor cause aerosol leakage to pollute the operating room, fundamentally isolating the occurrence of side effects and reducing the experience requirements for medical staff, allowing medical staff to stay away from patients to observe the operation and operate other surgical instruments, etc., thereby further reducing the difficulty of current abdominal pressurized atomization treatment surgery. In addition, the nozzle using this technical solution has also brought significant improvements in treatment efficiency, which can promote the development of the field of abdominal pressurized atomization treatment surgery, and also has the advantage of high spray efficiency and can be applied to multiple fields.

[0056] In the present technical solution, the atomizing head 1 should be identified as a component that can atomize the drug liquid to form an aerosol. In the prior art, any component that can atomize the drug liquid can be regarded as a specific implementation of the atomizing head 1. The present technical solution does not limit the specific structure of the atomizing head 1.

[0057] In addition, the specific installation angle of the atomizer head 1 can be an angle of 0-180° with the length direction of the nozzle 2, and in particular, the spray angle of the atomizer head 1 located on the axial side wall of the nozzle 2 can be perpendicular to the tangent line at the outer wall of the nozzle 2 (i.e. aligned with the liquid outlet hole 211), or can be tilted forward or backward. The spray angle and spray range of the spray hole 111 on the atomizer head 1 can also be changed accordingly to achieve all-round spraying of the abdominal cavity. It should be understood that any technical solution that improves the specific installation angle of the atomizer head 1, the spray angle of the atomizer head 1, and the number of atomizer heads 1 used so that the aerosol can be sprayed all around on the nozzle 2 should be regarded as within the protection scope of this technical solution, and the spray angle of the atomizer head 1 and the number of atomizer heads 1 are not specifically limited in this technical solution.

[0058] Through the above structure, a nozzle structure is constructed that can spray all-round into the abdominal cavity, so that the patient's abdominal cavity can be sprayed all-round during pressurized atomization treatment. Compared with the current single-hole nozzle, it is not only easier for the upper wall of the abdominal cavity to receive the medicine, but also has better treatment efficiency. It also does not require angle adjustment operations, and fundamentally eliminates the phenomenon of side effects that are easy to occur during treatment operations. It has the advantages of simple structure and easy use, and also has the advantages of high spray efficiency and can be applied to multiple fields.

[0059] like Figure 3-4 As shown, the atomizing head 1 located on the axial side wall of the nozzle 2 is distributed on the nozzle 2 in a ring shape.

[0060] As an optional implementation scheme of the present invention, the annular distribution design allows a number of atomizing heads 1 of the same specifications to meet the requirement of spraying the abdominal cavity space on the side of the nozzle 2. This design is also easier to manufacture to reduce production costs. Moreover, since the liquid flow in the nozzle 2 is relatively more stable and balanced, the mist output effect is also more uniform.

[0061] Through the above structure, the function of uniformly spraying around the abdominal cavity can be achieved through the atomizing head 1 of the same specification, and this makes the spray head easier to produce.

[0062] like Figure 2-3 As shown, the surface of the atomizing head 1 located on the axial side wall of the nozzle 2 does not protrude from the axial side wall of the nozzle 2.

[0063] As an optional implementation scheme of the present invention, since the entire nozzle needs to be completely immersed in the abdominal cavity, it is well known that the current nozzle using a single-hole spray method does not require a large incision in the process of pressurized atomization treatment of the abdominal cavity. Therefore, the atomization head 1 that does not protrude from the side surface of the nozzle tube 2 is sufficient to ensure that the multi-porous nozzle can meet the surgical requirements of pressurized atomization treatment like the existing single-hole nozzle. It will not cause stretching or tearing of the incision when the nozzle passes through the incision, nor will it require a larger incision to complete the operation, and obviously will not have a negative impact on the patient's postoperative wound recovery.

[0064] Through the above structure, the porous atomizing nozzle can also meet the original incision requirements of abdominal pressure treatment. No larger incision is required to apply the nozzle, and no side effects will be caused to the patient's postoperative wound recovery.

[0065] like Figure 4-5 As shown, a blind hole 21 for fixing and mounting the atomizing head 1 is provided on the axial side wall of the nozzle 2, and a liquid outlet hole 211 is provided at the bottom of the blind hole 21 to allow the inside of the nozzle 2 to communicate with the atomizing head 1.

[0066] As an optional embodiment of the present invention, the design of the blind hole 21 provides a location for the installation of the atomizing head 1, and ensures that the atomizing head 1 will not protrude from the axial side wall of the nozzle 2 after installation, and the liquid outlet hole 211 allows the liquid in the nozzle 2 to be transported to the atomizing head 1.

[0067] In the present technical solution, the atomizing head 1 may be installed in the blind hole 21 in a detachable manner such as threading, or in a welding manner, etc., and the present technical solution does not make any specific limitation on this.

[0068] like Figure 3-5 As shown, a liquid supply channel 22 is provided in the nozzle 2 , and all the liquid outlet holes 211 are connected to the liquid supply channel 22 .

[0069] As an optional implementation scheme of the present invention, due to the design of the blind hole 21, the nozzle 2 cannot use a conventional tube with a smaller wall thickness. Considering the need to make the spray effects of all the atomizing heads 1 as consistent as possible to ensure uniform and efficient treatment effects, the delivery of the liquid in the nozzle 2 to each atomizing head 1 located on the axial side wall of the nozzle 2 should also be consistent. Therefore, the specific position and length of each liquid outlet hole 211 are consistent.

[0070] Through the above structure, the atomization effects of all atomization heads 1 can be consistent, so the effect of abdominal pressure atomization treatment can be stabilized.

[0071] like Figure 3-5 As shown, the atomizing head 1 includes a nozzle 11 and a swirl core 12 arranged in the nozzle 11 . The liquid flows through the side wall of the swirl core 12 through the liquid outlet 211 , and forms a swirl in the nozzle 11 before being sprayed out from the spray hole 111 on the nozzle 11 .

[0072] As an optional implementation scheme of the present invention, in order to ensure that the liquid sprayed by the multiple atomizing heads 1 installed on the nozzle 2 can meet the atomization effect required for the pressurized abdominal atomization treatment, each atomizing head 1 is required to have a reliable atomization function. When the liquid medicine is transported to the swirl core 12, it will first be blocked by the swirl core 12 itself, and can only enter between the nozzle 2 and the swirl core 12 through the narrow gap between the swirl core 12 and the inner wall of the nozzle 2, which can meet the pressure, flow rate and flow rate requirements of the liquid during pressurized atomization treatment. Then, the liquid forms a vortex between the swirl core 12 and the nozzle 2 and is sprayed out from the spray hole 111, so that the output liquid medicine has the required atomization effect.

[0073] Through the above structure, it is achieved that the liquid medicine sprayed by all the atomizing heads 1 meets the atomization effect required by the current pressurized atomization treatment.

[0074] like Figure 7 and Fig. 9As shown, the surface of the swirl core 12 is provided with a swirl groove 121 which can penetrate the axial side wall of the swirl core 12 and the end face of the swirl core 12 close to the spray hole 111 , and the two ends of the swirl groove 121 are at different diameters of the end face of the swirl core 12 .

[0075] As an optional embodiment of the present invention, the swirl groove 121 is tilted on the edge of the end face of the swirl core 12, so that when the liquid flows through the slit between the swirl core 12 and the nozzle 11, the liquid flowing through the swirl groove 121 flows along the chord direction of the end face of the swirl core 12 into the space between the swirl core 12 and the front end of the nozzle 11, thereby forming a vortex. The specific shape of the swirl groove 121 is not limited in this technical solution. It can be arc-shaped or linear. Any swirl groove 121 that can cause the liquid to form a vortex belongs to the protection scope of this solution.

[0076] Through the above structure, the liquid can form a vortex after passing through the cyclone core 12, so as to support the liquid medicine to form a spray that meets the requirements.

[0077] like Fig. 9 As shown, the swirl grooves 121 are evenly distributed on the swirl core 12 in an annular shape.

[0078] Through the above structure, the spray effect formed by the liquid flowing through the swirl groove 121 is better, and more in line with the current requirements for pressurized atomization therapy for spray.

[0079] like Fig. 9 As shown, a plurality of guide surfaces 122 are provided on the axial side wall of the swirl core 12 , and an opening at one end of the swirl groove 121 is located in the guide surface 122 .

[0080] As an optional embodiment of the present invention, the design of the guide surface 122 is mainly to provide a narrow gap between the swirl core 12 and the inner wall of the nozzle 11 for liquid to pass through. It can be an inclined plane (similar to a chamfer) or a plane parallel to the axial direction of the swirl core 12. When the liquid flows through the guide surface 122, it can directly enter the swirl groove 121 and then enter the space where the vortex is formed (i.e., between the end face of the swirl core 12 and the nozzle hole 111, or the subsequent liquid guide groove 112).

[0081] The above structure ensures that the liquid can pass between the swirl core 12 and the inner wall of the nozzle 11 .

[0082] like Figure 7-8 As shown, the inner wall of the nozzle 11 is provided with a liquid guiding groove 112, the spray hole 111 is opened in the bottom of the liquid guiding groove 112, and the outer diameter R of the liquid guiding groove 112 is not less than twice the distance H from the notch of the swirl groove 121 corresponding to the end surface of the swirl core 12 to the axis of the swirl core 12.

[0083] As an optional implementation scheme of the present invention, since the liquid obtains a large pressure after being pressurized, it will directly impact the end face of the swirl core 12 when flowing into the nozzle 11, which will cause the space between the swirl core 12 and the front end of the nozzle 11 to shrink, especially when the swirl core 12 is subsequently equipped with a spring 13, it may cause the space of the formed vortex to be smaller, which will affect the atomization quality of the atomizing head 1, and further affect the spray effect and the treatment effect. Therefore, the structure of the guide groove is designed, and the outlet position of the swirl groove 121 is aligned with the guide groove (that is, 2H<R), so that the volume of the space between the swirl core 12 and the front end of the nozzle 11 will not change significantly to affect the formation of the vortex.

[0084] Through the above structure, it is ensured that the space for forming the vortex is not affected by the liquid pressure, thereby ensuring that the spray quality is guaranteed.

[0085] like Fig. 9 As shown, the swirl groove 121 is a straight groove.

[0086] As an optional implementation scheme of the present invention, compared with the arc-shaped swirl groove 121, the straight groove is easier to process and shape. In the field of pressurized atomization therapy, since the volume, length and diameter of the nozzle are relatively small, the specifications of the atomizer head 1 in the present technical solution are smaller, and the processing of the straight groove only needs cutting. Compared with the arc-shaped one, the difficulty of processing and shaping will be greatly reduced, and the cost will be reduced.

[0087] With the above structure, the processing of the swirl core 12 in the atomizing head 1 will be easier, and it will also be less likely to accumulate liquid medicine, causing more difficulties in cleaning the nozzle when it is reused, which is beneficial to reducing both production costs and use costs.

[0088] like Figure 8 As shown, the cross section of the liquid-conducting groove 112 is tapered.

[0089] As an optional embodiment of the present invention, as mentioned above, the conical liquid guide groove 112 makes it less likely to accumulate liquid medicine, and the conical structure is easier to process for parts with small specifications; in addition, when the vortex is formed and sprayed out in the spray hole 111, the spray quality formed by the columnar liquid guide groove 112 is not as good as the spray quality of the conical liquid guide groove 112.

[0090] Through the above structure, the cost of reuse and production will be lowered while ensuring that the spray quality can meet the requirements of pressurized atomization treatment.

[0091] like Figure 4-7 As shown, the atomizing head 1 further includes a spring 13 which is arranged on the swirl core 12 and is away from one end of the spray hole 111 .

[0092] As an optional implementation scheme of the present invention, for the space for forming a vortex, if this space changes, it will affect the effect of the vortex, thereby affecting the spray quality and treatment effect. In the actual treatment process, although it is not easy for external factors, especially human factors (such as moving the nozzle during surgery) to affect this space, there may be unstable operating conditions of the pressurizing equipment used in the process of implementing the present invention. It is very likely that the operating condition of the pressurizing equipment used (such as a peristaltic pump) is unstable, and the impact force of the liquid on the vortex core 12 is unstable, causing the vortex core 12 to move inside the nozzle 11, which will cause the space provided for forming the vortex to change. Therefore, through the use of the spring 13, after the assembly of the atomizing head 1 is completed, the spring 13 can keep the vortex core 12 in pressure contact with the front end of the nozzle 11, so it can well cope with the impact force of this change and keep the space difficult to change.

[0093] Through the above structure, the swirl core 12 is kept in a state of pressure contact with the front end of the nozzle 11, so as to resist the change of the impact force on the swirl core 12 when the liquid pressure changes, and ensure that the space between the swirl core 12 and the front end of the nozzle 11 is difficult to change and affect the vortex quality, thereby ensuring the spray quality. Such a design scheme also makes the atomizing nozzle suitable for various pressurized equipment.

[0094] like Figure 2-3 As shown, it also includes a liquid supply rod 3 detachably connected to the liquid inlet end of the nozzle 2 for supplying liquid to the nozzle 2.

[0095] As an optional implementation scheme of the present invention, the liquid supply rod 3 is currently usually used as a handheld component or a component fixed on the incision, mainly for supplying liquid to the nozzle. In the present technical solution, since the nozzle 2 is only used as a spray component, the overall size specification is relatively small. In order to allow the entire nozzle to be fully immersed in the abdominal cavity for spraying, it is necessary to equip the liquid supply rod 3 as a connecting part of the nozzle; and the detachable design enables the aforementioned nozzle 2 and the atomizer attached to the nozzle 2 to be replaced separately, so as to better perform the cleaning required for reuse, or as a waste, technical personnel in this field may also choose a non-detachable assembly method, or even an integrated design scheme, but this will increase the difficulty of assembling each component, especially the atomizer head 1. For the detachable connection method, it can be as follows Figure 3 The thread method can also be other methods, and the present technical solution does not make specific limitations on this.

[0096] In actual application, the liquid supply rod 3 can be a soft catheter or a hard rod-shaped catheter. However, since the pressurized liquid may vibrate due to the placement of the catheter when it flows, in order to ensure the sealing of the incision, the present technical solution is preferably a hard rod-shaped shape. However, if a retractor or spreader is provided at the incision, a hose can also be used as the liquid supply rod 3. Therefore, the present technical solution does not limit the specific form of the liquid supply rod 3.

[0097] Through the above structure, the nozzle 2 and the atomizing head 1 with very fine structures can be easily produced, assembled and replaced during repeated use, and can provide a variety of usage methods to meet the treatment methods of different situations.

[0098] like Figure 3 As shown, the outer diameter of the liquid supply rod 3 does not exceed the outer diameter of the nozzle 2.

[0099] As an optional embodiment of the present invention, when a hard liquid supply rod 3 is selected and part of the liquid supply rod 3 needs to be passed through the incision, in order to ensure the ease of passing through the incision and protect the incision, the liquid supply rod 3 needs to be matched with the size of the nozzle 2. The two outer diameters can be the same to ensure that the incision is not affected when the nozzle is inserted and removed. However, the outer diameter of the liquid supply rod 3 can also be smaller than the outer diameter of the nozzle. The purpose is that when the nozzle is spraying, the nozzle will not automatically slide on the incision and detach from the abdominal cavity due to the increase in the internal pressure of the abdominal cavity and the backward thrust of the nozzle itself when spraying. When such an event occurs, a serious medical accident will occur. At the same time, as described above, medical staff usually stay away from patients during atomization treatment, so the method of directly allowing the nozzle to be stuck in the abdominal cavity also has the effect of matching the actual situation in the operating room. Therefore, whether the outer diameter of the liquid supply rod 3 is equal to or smaller than the diameter of the nozzle has different effects and different adaptability ranges, and this technical solution does not make specific restrictions on this.

[0100] Through the above structure, the atomizing nozzle can easily pass through the incision to achieve full immersion in the abdominal cavity to perform spraying, and at the same time has a wider range of adaptability.

[0101] like Figure 2 As shown, the other end of the liquid supply rod 3 is also provided with a connector 31 for connecting a hose.

[0102] As an optional embodiment of the present invention, the hose refers to a component used to connect a liquid medicine source (such as an infusion bag). At the same time, since the pressurized atomization device usually uses a peristaltic pump for pressurization, the use of a hose is more convenient for implementing pressurized atomization therapy. The connector 31 can be a threaded connection or another detachable connection method, which is not specifically limited in this technical solution.

[0103] Through the above structure, the liquid supply rod 3 can be easily connected to an external liquid medicine source.

[0104] Embodiment 2: Compared with the embodiment, the main differences are: like Fig.10 As shown, the swirl core 12 includes a core column 123, a convex ring 124 provided on the end face of the core column 123 close to the spray hole 111, and a swirl groove 121 that can penetrate the inside and outside of the convex ring 124. The inner wall of the nozzle 2 is provided with a liquid guide groove 112 that penetrates the spray hole 111, and the outer diameter of the liquid guide groove 112 does not exceed the outer diameter of the outer circle of the convex ring 124.

[0105] As an optional embodiment of the present invention, when the high-pressure liquid flows into the nozzle 2, it creates an impact force on the swirl core 12, causing it to form a pressure contact with the end of the nozzle 2. At the same time, part of the liquid flows into the swirl chamber between the liquid guide groove 112 and the convex ring 124 through the swirl groove 121 and forms a vortex. As the pressure further increases, it is ejected from the nozzle hole 111 to form a spray.

[0106] During the continuous spraying process, since the nozzle 2 is in continuous pressure contact with the end of the nozzle 2, there is no gap between the convex ring 124 and the nozzle 2, so that the liquid can only enter the swirl chamber through the swirl groove 121, and the pressure of the pressure contact comes from the pressure difference at both ends of the swirl groove 121. The pressure difference is stably maintained because the flow rate of the liquid entering the nozzle 2 is greater than the flow rate of the liquid entering the swirl chamber, so the pressure contact can also be maintained for a long time, so the state that the liquid can only enter the swirl chamber through the swirl groove 121 can be maintained for a long time, so the atomization angle during spraying can also be maintained for a long time. The most critical thing is that such a design does not need and cannot allow the core column 123 to form a tight fit with the inner wall of the nozzle 2, so it fundamentally avoids the problems of high difficulty and high cost of modern machining, which is enough to improve the problems of insufficient atomization quality and difficult atomization operation in various existing fields due to the inability to maintain the atomization angle, so that the operation efficiency is greatly improved.

[0107] Through the above structure, a simple and ingenious structure is used to achieve a stable atomization angle during atomization operation, and a series of problems affecting the stability of the atomization angle caused by machining are avoided by bypassing the idea of ​​improving machining accuracy, so that the cost is greatly reduced, and the negative impact on operation efficiency in various fields caused by the inability to maintain a stable atomization angle, such as difficulty in operation and insufficient spray quality during spraying operations, is eliminated.

[0108] like Fig.10 As shown, the nozzle 2 is further provided with a liquid channel 125 located on the side of the core column 123 away from the nozzle hole 111 , and the liquid flows through the liquid channel 125 to form a vortex and then enters the swirl groove 121 .

[0109] Through the above structure, the processing and forming of the liquid channel 125 can be implemented relatively easily.

[0110] like Fig.10 As shown, the liquid channel 125 is in the shape of a spiral groove and is distributed on the axial side surface of the core column 123.

[0111] Through the above structure, two vortices are formed, allowing the liquid to experience centrifugal force enhancement before entering the vortex groove 121 to form a vortex, which can not only allow the liquid to instantly fill the entire nozzle 2 and achieve instant mist output, but also greatly improve the quality of the entire mist output.

[0112] like Fig.10 As shown, the outer diameter of the end of the core column 123 away from the protruding ring 124 matches the inner diameter of the nozzle 2.

[0113] Through the above structure, the quality of the vortex formed for the first time is better, thereby increasing the centrifugal force before entering the swirl groove 121, so that the overall spray quality is improved.

[0114] The working principle and use process of the present invention are as follows: when performing pressurized atomization treatment surgery, the nozzle 2 is located inside the abdominal cavity, the drug solution flows into the nozzle 2 after being pressurized, and dispersedly flows into the atomizing heads 1, and the atomizing heads 1 atomize the drug solution and spray it into the abdominal cavity.

[0115] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A porous atomizing nozzle, comprising an atomizing head capable of atomizing a liquid and a nozzle for supplying the liquid to the atomizing head, characterized in that: The atomizing heads are respectively arranged on the end of the nozzle and the side wall of the shaft.

2. The porous atomizing nozzle according to claim 1, characterized in that: The surface of the atomizing head located on the axial side wall of the nozzle does not protrude from the axial side wall of the nozzle.

3. The porous atomizing nozzle according to claim 2, characterized in that: A blind hole for fixing and installing the atomizing head is arranged on the axial side wall of the nozzle, and a liquid outlet hole for connecting the inside of the nozzle with the atomizing head is arranged at the bottom of the blind hole.

4. The porous atomizing nozzle according to claim 3, characterized in that: The atomizing head comprises a nozzle and a swirl core arranged in the nozzle. The liquid flows through the side wall of the swirl core through the liquid outlet hole, and after forming a swirl in the nozzle, it is sprayed out from the spray hole on the nozzle.

5. The porous atomizing nozzle according to claim 4, characterized in that: The surface of the swirl core is provided with a swirl groove which can penetrate the axial side wall of the swirl core and the end face of the swirl core close to the spray hole, and the two ends of the swirl groove are at different diameters of the end face of the swirl core.

6. The porous atomizing nozzle according to claim 5, characterized in that: A plurality of guide surfaces are arranged on the axial side wall of the swirl core, and the opening at one end of the swirl groove is located in the guide surface.

7. The porous atomizing nozzle according to claim 5, characterized in that: The inner wall of the nozzle is provided with a liquid guiding groove, the spray hole is opened in the bottom of the liquid guiding groove, and the outer diameter of the liquid guiding groove is not less than twice the distance from the notch of the swirl groove corresponding to the end face of the swirl core to the swirl core axis.

8. The porous atomizing nozzle according to claim 4, characterized in that: The swirl core includes a core column, a convex ring arranged on the end face of the core column close to the spray hole, and a swirl groove that can penetrate the inside and outside of the convex ring. The inner wall of the nozzle is provided with a liquid guide groove that penetrates the spray hole, and the outer diameter of the liquid guide groove does not exceed the outer diameter of the outer ring of the convex ring.

9. The porous atomizing nozzle according to claim 4, characterized in that: The atomizing head also includes a spring which is arranged on the swirl core and is away from one end of the spray hole.

10. The porous atomizing nozzle according to any one of claims 1 to 9, characterized in that: It also includes a liquid supply rod which is detachably connected to the liquid inlet end of the nozzle and is used for supplying liquid to the nozzle.

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