Device for reducing hardener overflow in maxillofacial hemangioma cavity injection

Abstract

The utility model discloses a device for reducing hardener overflow in maxillofacial hemangioma cavity injection, and the device comprises a first clamping part which comprises a first hand-held part and an annular pressing ring arranged at the end part of the first hand-held part, and a second clamping part which comprises a second hand-held part and an annular pressing ring arranged at the end part of the second hand-held part, the second clamping part comprises a second handheld part and a matched pressing part arranged at the end part of the second handheld part; the first clamping part is connected with the second clamping part through the hinge seat; the second handheld part is provided with a tooth positioning arc-shaped plate for allowing the arc-shaped positioning plate to penetrate through, and one end of the tooth positioning arc-shaped plate is fixedly connected with the first clamping part; the elastic sheet is arranged between the first handheld part and the second handheld part, and one end of the elastic sheet is fixed on the second handheld part through a screw; and the locking plate is used for locking the annular pressing ring and the matched pressing part at a preset opening and closing angle. The medicine is effectively prevented from overflowing in the injection process, so that the treatment effect is improved, and the potential risk of the medicine to other parts of a patient is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of auxiliary devices for treating hemangioma, in particular to a device for reducing overflow of sclerosing agent in maxillofacial hemangioma tumor cavity injection. BACKGROUND

[0002] Maxillofacial hemangioma, as a common benign vascular tumor or malformation, its treatment has always been the focus of the medical community. In particular, when dealing with larger maxillofacial hemangioma, the traditional treatment method often faces many challenges. At present, one of the mainstream treatment methods is to first inject sclerosing agent or antitumor drugs into the tumor cavity to reduce or even eliminate hemangioma. The treatment principle is mainly based on directly injecting drugs into the tumor cavity, and promoting the gradual reduction of hemangioma by the action of drugs until the final disappearance, so as to achieve the purpose of curing the patient.

[0003] However, in the actual application of this treatment method, especially in the process of injecting antitumor drugs into the tumor cavity of maxillofacial hemangioma, since the tumor cavity is a cavity structure inside the blood vessel in anatomy, when the antitumor drugs are injected into it, the drugs will inevitably spread to all parts of the body along the blood circulation system, and the local drug concentration in the tumor cavity is often difficult to reach the ideal level, thereby weakening the treatment effect. More seriously, the distribution of drugs in the whole body can also cause a series of adverse reactions, which threatens the overall health of the patient.

[0004] Therefore, it is necessary to provide a device for reducing overflow of sclerosing agent in maxillofacial hemangioma tumor cavity injection. SUMMARY

[0005] The present application provides a device for reducing overflow of sclerosing agent in maxillofacial hemangioma tumor cavity injection, which aims to solve the problem in the prior art that only in the process of injecting antitumor drugs into the tumor cavity of maxillofacial hemangioma, since the tumor cavity is a cavity structure inside the blood vessel in anatomy, when the antitumor drugs are injected into it, the drugs will inevitably spread to all parts of the body along the blood circulation system, and the local drug concentration in the tumor cavity is often difficult to reach the ideal level, thereby weakening the treatment effect. More seriously, the distribution of drugs in the whole body can also cause a series of adverse reactions, which threatens the overall health of the patient.

[0006] To achieve the above-mentioned purpose, the present application provides a device for reducing overflow of sclerosing agent in maxillofacial hemangioma tumor cavity injection, which comprises:

[0007] The first clamping part comprises a first hand part and a ring pressing ring arranged at the end of the first hand part;

[0008] The second clamping part comprises a second hand part and a matching compression part arranged at the end of the second hand part;

[0009] a hinged seat, the first clamping part being connected to the second clamping part through the hinged seat;

[0010] a tooth positioning arc-shaped plate member, the second hand-held part being provided with a through hole for the tooth positioning arc-shaped plate member to pass through, one end of the tooth positioning arc-shaped plate member being fixedly connected to the first clamping part;

[0011] a resilient sheet, the resilient sheet being arranged between the first hand-held part and the second hand-held part, one end of the resilient sheet being fixed on the second hand-held part through a screw, the other end of the resilient sheet being a free end;

[0012] a locking plate, the locking plate being used for locking the ring pressing ring and the matching pressing part at a predetermined opening angle.

[0013] In one embodiment, the second hand-held part is further provided with a through hole for positioning the locking plate, the locking plate being provided with engaging teeth which are matched with the positioning teeth on the tooth positioning arc-shaped plate member, when the ring pressing ring and the matching pressing part are opened to the predetermined opening angle, the locking plate is engaged with the tooth positioning arc-shaped plate member, and one end of the locking plate abuts against the resilient sheet.

[0014] In one embodiment, the handle portions of the first hand-held part and the second hand-held part are provided with circular rings for facilitating hands to be put in.

[0015] In one embodiment, the ring pressing ring is a variable-diameter ring pressing ring.

[0016] In one embodiment, the matching pressing part is a solid structure or a ring structure.

[0017] In one embodiment, the cross-sectional shape of the positioning teeth on the tooth positioning arc-shaped plate member is triangular.

[0018] The technical scheme of the present application provides a device for reducing the overflow of sclerosing agents during the tumor cavity injection of maxillofacial hemangiomas. By designing the first clamping part and the second clamping part, cooperating with the ring pressure ring and the cooperating pressure part, the maxillofacial hemangioma can be accurately clamped, ensuring that the drug can be accurately injected into the hemangioma, significantly improving the accuracy of treatment. Due to the close clamping of the ring pressure ring and the cooperating pressure part, and the fixing effect of the locking plate, the overflow of the drug during the injection process is effectively prevented, thereby improving the treatment effect and reducing the potential risk of the drug to other parts of the patient. The handle part of the first hand part and the second hand part is provided with a circular ring for conveniently placing the hand, improving the gripping stability, so that the operator can more easily and accurately control the device to clamp and inject the hemangioma. The meshing effect of the tooth positioning arc-shaped plate and the locking plate, and the elastic support effect of the elastic sheet, ensure the stable locking of the ring pressure ring and the cooperating pressure part at the predetermined opening angle, preventing the displacement of the hemangioma or the accidental opening of the device during treatment, thereby improving the safety of treatment. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0020] Figure 1 FIG. 1 is a perspective structural schematic view of a device for reducing the overflow of sclerosing agents during the tumor cavity injection of maxillofacial hemangiomas according to an embodiment of the present application;

[0021] Figure 2 FIG. 2 is a front structural schematic view of a device for reducing the overflow of sclerosing agents during the tumor cavity injection of maxillofacial hemangiomas according to an embodiment of the present application;

[0022] Figure 3 FIG. 3 is a front structural schematic view (partially cutaway) of a device for reducing the overflow of sclerosing agents during the tumor cavity injection of maxillofacial hemangiomas according to an embodiment of the present application;

[0023] Figure 4 FIG. 4 is a partial enlarged view of part A in FIG. 1; Figure 1

[0024] Figure 5 FIG. 5 is a partial enlarged view of part B in FIG. 1; Figure 1

[0025] Figure 6 FIG. 6 is a left structural schematic view of a device for reducing the overflow of sclerosing agents during the tumor cavity injection of maxillofacial hemangiomas according to an embodiment of the present application. DETAILED DESCRIPTION​​

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0027] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0028] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a middle element present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or can have a middle element present.

[0029] In addition, the description involving "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope claimed by the present application.

[0030] Referring to Figures 1-6 As shown in the drawings, the present application provides a device for reducing overflow of sclerosing agent in maxillofacial hemangioma tumor cavity injection, which comprises: a first clamping part, the first clamping part comprising a first hand part 1 and a ring pressing ring 4 arranged at the end of the first hand part 1; a second clamping part, the second clamping part comprising a second hand part 2 and a matching compression part 5 arranged at the end of the second hand part 2; a hinge seat 3, the first clamping part is connected with the second clamping part through the hinge seat 3; a tooth positioning arc-shaped plate 6, the second hand part 2 is provided with a through hole for the tooth positioning arc-shaped plate to pass through, one end of the tooth positioning arc-shaped plate 6 is fixedly connected with the first clamping part; an elastic sheet 7, the elastic sheet 7 is arranged between the first hand part 1 and the second hand part 2, one end of the elastic sheet 7 is fixed on the second hand part 2 through a screw 9; the other end of the elastic sheet 7 is a free end; a locking plate 8, the locking plate 8 is used for locking the ring pressing ring 4 and the matching compression part 5 at a predetermined opening angle.

[0031] Specifically, the ring compression ring 4 is arranged at the end of the first hand-held part 1 and designed in a ring structure for directly contacting and compressing one side of the hemangioma. The ring compression ring 4 can be designed to be variable in diameter to adapt to hemangiomas of different sizes. In addition, the matching compression part 5 is arranged at the end of the second hand-held part 2 opposite to the ring compression ring 4 for matching the ring compression ring 4 to clamp the other side of the hemangioma. The matching compression part 5 can be a solid structure or a ring structure to adapt to different clamping requirements. Secondly, the hinge seat 3 is located between the first hand-held part 1 and the second hand-held part 2 as the connecting point of the two. The first clamping part and the second clamping part are allowed to rotate relative to each other within a certain range, so as to realize the clamping and releasing of the hemangioma.

[0032] Furthermore, one end of the tooth positioning arc-shaped plate 6 is fixedly connected with the first clamping part, and the other end penetrates through the through hole on the second hand-held part 2. The tooth positioning arc-shaped plate 6 is provided with positioning teeth which are matched with the clamping teeth on the locking plate 8 for locking the positions of the ring compression ring 4 and the matching compression part 5 at a predetermined opening and closing angle. In addition, the elastic sheet 7 is located between the first hand-held part 1 and the second hand-held part 2 and tightly abuts against the inner side of one of the first hand-held part 1 and the second hand-held part 2. One end of the elastic sheet 7 is fixed on the second hand-held part 2 through the screw 9, and the other end is a free end which can be bent or straightened along with the relative rotation of the first hand-held part 1 and the second hand-held part 2. The elastic sheet 7 provides elastic support for the locking plate 8 to ensure that the locking plate 8 can tightly abut against the second hand-held part 2 in the locked state, so as to maintain the clamping force of the ring compression ring 4 and the matching compression part 5. Finally, the locking plate 8 is a detachable part for locking the ring compression ring 4 and the matching compression part 5 when they reach the predetermined opening and closing angle. The locking plate 8 is provided with clamping teeth which are matched with the positioning teeth on the tooth positioning arc-shaped plate 6 to form a tight locking mechanism. When locking is needed, the operator inserts the locking plate 8 into the through hole on the second hand-held part 2 and makes it engage with the tooth positioning arc-shaped plate 6. At the same time, one end of the locking plate 8 abuts against the elastic sheet 7, and the elastic potential energy of the elastic sheet 7 is used to maintain the locked state.

[0033] The above implementation, specifically, in the process of clinical implementation, when applied to the hemangioma on the lips, the operator first adjusts the opening and closing angle of the device according to the specific position of the hemangioma. By holding the first hand-held part 1 and the second hand-held part 2, the ring compression ring 4 and the matching compression part 5 are aligned on both sides of the hemangioma. According to the needs, the shape and size of the hemangioma can be better adapted by adjusting the ring compression ring 4 (if designed to be variable in diameter). After the ring compression ring 4 and the matching compression part 5 are accurately aligned on both sides of the hemangioma, the operator tightly holds the first hand-held part 1 and the second hand-held part 2, so that the two are relatively rotated and close to each other through the hinge seat 3, so as to clamp the hemangioma between the ring compression ring 4 and the matching compression part 5. In this process, the elastic sheet 7 is compressed to store elastic potential energy.

[0034] When the ring pressure ring 4 and the matched compression part 5 reach the predetermined opening angle (that is, the clamping force is moderate, which will not cause blood vessel damage, nor will it be too loose to cause drug overflow), the operator inserts the locking plate 8 into the through hole on the second hand-held part 2, and makes the locking teeth on the locking plate 8 and the positioning teeth on the tooth positioning arc-shaped plate 6 interlock. One end of the locking plate 8 abuts against the elastic sheet 7, and the elastic potential energy of the elastic sheet 7 is used to maintain the locking state, ensuring that the ring pressure ring 4 and the matched compression part 5 will not easily open due to external force. In the state of maintaining clamping and locking, the operator can inject sclerosing agent or anti-tumor drug into the hemangioma tumor cavity. It should be noted that due to the close clamping of the ring pressure ring 4 and the matched compression part 5, and the fixing effect of the locking plate 8, the drug is not easy to overflow during injection, and can more accurately enter the hemangioma tumor cavity. After the injection is completed, the operator first unlocks the locking plate 8, so that it is separated from the tooth positioning arc-shaped plate 6. Then loosen the first hand-held part 1 and the second hand-held part 2, so that the ring pressure ring 4 and the matched compression part 5 are separated, thereby releasing the clamping of the hemangioma.

[0035] When applied to the hemangioma on the lips, this double-layer fitting method inside and outside ensures the all-round positioning of the hemangioma on the lips. Whether the hemangioma is located on the edge of the lips or close to the inside or outside of the oral cavity, the first clamping part and the second clamping part can accurately lock it between the ring pressure ring 4, preventing the displacement of the hemangioma during subsequent treatment operations. For hemangioma on the tongue, the first clamping part and the second clamping part can also accurately lock it between the ring pressure ring 4, which can also play a positioning role. The specific operation process can refer to the above disclosure, which will not be expanded here.

[0036] In summary, by designing the first clamping part and the second clamping part, cooperating with the ring pressure ring and the matched compression part, the maxillofacial hemangioma can be accurately clamped, ensuring that the drug can be accurately injected into the hemangioma, significantly improving the accuracy of treatment. Due to the close clamping of the ring pressure ring and the matched compression part, and the fixing effect of the locking plate, the overflow of the drug during injection is effectively prevented, thereby improving the treatment effect and reducing the potential risk of the drug to other parts of the patient. The handle part of the first hand-held part and the second hand-held part is provided with a circular ring for the hand to enter, which improves the gripping stability, so that the operator can more easily and accurately control the device to clamp and inject the hemangioma. The interlocking effect of the tooth positioning arc-shaped plate and the locking plate, and the elastic support effect of the elastic sheet, ensure the stable locking of the ring pressure ring and the matched compression part at the predetermined opening angle, preventing the displacement of the hemangioma or the accidental opening of the device during treatment, thereby improving the safety of treatment.

[0037] In one embodiment, a through hole is also provided on the second hand-held part 2 for positioning the locking plate 8, and the locking plate 8 has engaging teeth that cooperate with the positioning teeth on the tooth positioning arc-shaped plate member 6. When the ring pressing ring 4 and the cooperating pressing part 5 are opened to a predetermined opening angle, the locking plate 8 is engaged with the tooth positioning arc-shaped plate member 6, and one end of the locking plate 8 abuts against the elastic sheet 7.

[0038] Specifically, the operator first checks whether each component of the device is in good condition, especially whether the ring pressing ring 4, the cooperating pressing part 5, the tooth positioning arc-shaped plate member 6, the elastic sheet 7, and the locking plate 8 are in normal working condition. Then, the device is placed in a suitable position, ready for the clamping operation of the hemangioma. Next, the operator holds the first hand-held part 1 with one hand and holds the second hand-held part 2 with the other hand. Through the relative movement of both hands, the ring pressing ring 4 and the cooperating pressing part 5 gradually approach the hemangioma and are adjusted to a suitable opening angle. In this process, the tooth positioning arc-shaped plate member 6 moves with the rotation of the first hand-held part 1, and the positioning teeth thereon gradually approach the engaging teeth on the locking plate 8. When the ring pressing ring 4 and the cooperating pressing part 5 are opened to a predetermined opening angle, the operator inserts the locking plate 8 into the through hole on the second hand-held part 2 and engages it with the positioning teeth on the tooth positioning arc-shaped plate member 6. At the same time, one end of the locking plate 8 abuts against the elastic sheet 7, and the elastic potential energy of the elastic sheet 7 is used to maintain the locking state. At this time, the ring pressing ring 4 and the cooperating pressing part 5 are firmly locked at the predetermined opening angle, forming a stable clamping force on the hemangioma.

[0039] After the hemangioma is stably clamped, the operator can perform subsequent treatment operations, such as injecting sclerosing agents or anti-tumor drugs, etc. Since the hemangioma is firmly clamped, the drugs can be more accurately injected into the hemangioma, reducing the risk of overflow. The main locking mechanism is based on mechanical locking. Through the engagement of the tooth positioning arc-shaped plate member 6 and the locking plate 8, and the elastic support of the elastic sheet 7, the ring pressing ring 4 and the cooperating pressing part 5 are stably locked at the predetermined opening angle. This locking mechanism ensures that the hemangioma can be firmly clamped during treatment, thereby improving the accuracy and effectiveness of treatment.

[0040] Through the above structural design, that is, through the engagement of the tooth positioning arc-shaped plate member 6 and the locking plate 8, and the elastic support of the elastic sheet 7, the ring pressing ring 4 and the cooperating pressing part 5 are stably locked at the predetermined opening angle. This locking mechanism ensures that the hemangioma can be firmly clamped during treatment, thereby improving the accuracy and effectiveness of treatment.

[0041] In one embodiment, the handles of the first hand-held part 1 and the second hand-held part 2 are provided with circular rings for easy hand insertion.

[0042] Specifically, the handle parts of the first hand-held part 1 and the second hand-held part 2 are provided with a circular ring for facilitating the hands to be put in, and the material of the circular ring is generally a material with certain friction and good touch. Plastic material can be used, and of course the surface can also have a slightly frosted texture, which can increase the friction when the operator holds it, preventing the hands from accidentally slipping during use. Of course, the circular ring can also be made of rubber material, which can better fit the hands due to its softness, and its elasticity can reduce the fatigue of the hands to a certain extent. The surface of the rubber material circular ring can also be designed with anti-slip texture, which can be a simple straight line texture or a complex mesh pattern, further enhancing the stability of holding. Through the design of improving the stability of holding, improving the comfort of operation, enhancing the control of operation, adapting to different hand shapes and reducing the fatigue of operation, good effects have been brought. Not only the use performance of the device is improved, but also the working experience and treatment effect of the operator are improved.

[0043] In one embodiment, the ring compression ring 4 is a variable diameter ring compression ring.

[0044] Specifically, the ring compression ring 4 is a variable diameter ring compression ring, which can adopt a structure similar to a cuff. By setting an adjusting mechanism, the adjusting mechanism in the prior art is usually located at one end of the cuff, which can be a screw knob, a buckle, a ratchet, etc. By rotating or pulling the adjusting mechanism, the diameter of the cuff can be adjusted, thereby realizing the clamping of blood vessel tumors of different sizes. In order to ensure that the cuff can remain stable after being adjusted in place, the throat structure is also provided with a locking mechanism. The locking mechanism can be a locking nut, a clamping spring, etc. cooperating with the adjusting mechanism, which is used to lock the diameter of the cuff after adjustment is completed. The inner side of the cuff is provided with a soft contact surface, which is usually made of rubber, silicone or other soft materials, for reducing friction and damage between the blood vessel tumor or other treatment target.

[0045] In one embodiment, the matching compression part 5 is a solid structure or a ring structure.

[0046] Specifically, the matching compression part 5 of the ring structure is similar to a circular ring with a gap in the middle. This design allows more flexibility, and the diameter of the ring structure can be adjusted according to the size of the blood vessel tumor to adapt to tumors of different sizes. The ring structure allows a certain deformation while providing sufficient pressure, which helps better adapt to irregularly shaped blood vessel tumors and ensures that the compression part can closely fit the surface of the tumor.

[0047] Of course, it can also be designed as a solid structure, and the matching compression part 5 of the solid structure is made of a single material without an internal cavity. This structure provides a larger contact area, which can evenly disperse the pressure and reduce tissue damage caused by excessive local pressure. Moreover, the solid structure is usually more solid and can provide stable pressure, ensuring that the ring compression ring 4 and the matching compression part 5 can closely cooperate during injection, reducing the overflow of sclerosing agent.

[0048] In summary, the solid or ring-shaped structure design of the compression part 5 not only improves the treatment effect, but also reduces the risk of adverse reactions, and is more reasonable in stress distribution, which helps to protect the surrounding tissues. This design provides better stability and adaptability in actual operation.

[0049] In one embodiment, the cross-sectional shape of the positioning teeth on the tooth positioning arc-shaped plate 6 is triangular.

[0050] Specifically, the design of triangular cross-section positioning teeth makes the contact area between the teeth and the mating parts larger, thereby providing stronger friction and helping to enhance the stability of positioning. When subjected to external forces, triangular teeth are less likely to slip or deform, and can maintain stable positioning effect. Moreover, the design of triangular cross-section positioning teeth helps to disperse stress and reduce stress concentration phenomenon. When subjected to external forces, stress will be evenly distributed along the three edges of the triangle, thereby reducing the risk of tooth root fracture or deformation. From the perspective of processing, the structure of triangular cross-section positioning teeth is relatively simple and easy to manufacture by mechanical processing or mold forming. At the same time, since its structure is stable and not easy to damage, the maintenance cost is relatively low.

[0051] In summary, the combination of the arc-shaped design of the tooth positioning arc-shaped plate 6 and the triangular cross-section positioning teeth makes the plate adapt to different installation surfaces and matching requirements. Whether on a flat surface, a curved surface, or other complex-shaped surfaces, it can provide stable and reliable positioning effect.

[0052] The above only describes some or preferred embodiments of the present application, neither the text nor the drawings can limit the scope of protection of the present application, any equivalent structural transformation using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the scope of protection of the present application.

Claims

1. A device for reducing extravasation of a sclerosing agent for maxillofacial hemangioma tumor cavity injection, characterized in that, The utility model relates to a kind of tooth positioning arc-shaped plate members, comprising: First clamping part, the first clamping part includes first hand part and ring pressure ring being arranged at the end of the first hand part; Second clamping part, the second clamping part includes second hand part and cooperation pressure part being arranged at the end of the second hand part; Hinge seat, the first clamping part is connected with the second clamping part by the hinge seat; Tooth positioning arc-shaped plate member, the second hand part is provided with the through hole for the tooth positioning arc-shaped plate member, one end of the tooth positioning arc-shaped plate member is fixedly connected with the first clamping part; Elastic sheet, the elastic sheet is arranged between the first hand part and the second hand part, one end of the elastic sheet is fixed on the second hand part by screw;The other end of the elastic sheet is free end; Locking plate, the locking plate is used for locking ring pressure ring and cooperation pressure part at predetermined opening angle.

2. The device for reducing overflow of sclerosing agent in maxillofacial hemangioma cavity injection according to claim 1, characterized in that, Second hand part is also provided with through hole for the locking plate positioning, the locking plate is provided with the engagement tooth on the locking plate, and the engagement tooth is matched with the positioning tooth on the tooth positioning arc-shaped plate member, when the ring pressure ring and the cooperation pressure part are opened to predetermined opening angle, the locking plate is engaged with the tooth positioning arc-shaped plate member, and one end of the locking plate is abutted to the elastic sheet.

3. The device for reducing overflow of sclerosing agent in maxillofacial hemangioma cavity injection according to claim 2, characterized in that, The handle of the first hand part and the second hand part is provided with circular ring for facilitating hand to put in.

4. The device for reducing overflow of sclerosing agent in maxillofacial hemangioma cavity injection according to claim 1, characterized in that, The ring pressure ring is variable-diameter ring pressure ring.

5. The device for reducing the overflow of sclerosing agent according to claim 1, wherein, The cooperation pressure part is solid structure or ring structure.

6. The device for reducing the overflow of sclerosing agent according to claim 2, wherein, The cross-sectional shape of the positioning tooth on the tooth positioning arc-shaped plate member is triangular.

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