Angled ultrasonic treatment head and ultrasonic debridement equipment
By designing an angled ultrasonic treatment head and using a vibration component consisting of an ultrasonic transducer and a horn, the problem that existing equipment cannot remove bacterial biofilms in the corner areas of the joint cavity is solved, achieving a more comprehensive debridement effect.
Patent Information
- Application Number
- CN202422344997.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The treatment head of the existing ultrasonic debridement device is linear and cannot fully contact the corner area in the joint cavity, resulting in incomplete removal of bacterial biofilm.
An angled ultrasonic treatment head is designed. The vibration assembly consisting of an ultrasonic transducer, a horn and a working rod is used to achieve the angle connection of the treatment head, ensuring that the vibration energy is transmitted to the corner area to remove bacterial biofilms.
It achieves effective removal of bacterial biofilm in the corner area of the joint cavity and improves the debridement effect.
Smart Images
Figure CN223380987U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an angled ultrasonic treatment head and ultrasonic debridement equipment. Background Art
[0002] In the medical field, ultrasonic debridement technology has become a very important treatment method. Ultrasonic debridement technology uses low-frequency ultrasound to produce a "cavitation effect" in the flushing jet fluid, and performs targeted cavitation blasting on the bacterial biofilm formed in the joint cavity, generating a shear force at the junction of solid and liquid, and removing bacteria, viruses and fungi deep in the joint cavity. By combining surgical debridement with low-frequency ultrasonic technology, the medical staff can improve the wound bacteria and biofilm clearance rate during surgery.
[0003] Current ultrasonic debridement equipment uses an ultrasonic probe inserted into the joint cavity to perform cavitation blasting on the bacterial biofilm in the joint cavity, thereby removing bacteria, viruses, and fungi deep inside the joint cavity. However, in actual operation, since the treatment heads of existing ultrasonic debridement equipment are all linear, there is a problem that the treatment head cannot fully contact the area that needs to be debridement. In response to this, the applicant previously proposed a solution that connects the transducer head to the tool head at different angles. Although this solution solves the problem to a certain extent, the tool head is still linear in nature. For some corner areas, the tool head cannot fully contact this area, and the problem of not being able to completely remove the bacterial biofilm still exists. In response to this, the applicant proposed an angled ultrasonic treatment head that can easily remove bacterial biofilms in corner areas. Utility Model Content
[0004] The purpose of the utility model is to provide an angled ultrasonic treatment head so as to conveniently remove bacterial biofilms in corner areas.
[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:
[0006] An angled ultrasonic treatment head, comprising:
[0007] Ultrasonic transducer;
[0008] horn;
[0009] Working pole;
[0010] The axial ends of the amplitude transformer are fixedly connected to the ultrasonic transducer and the working rod respectively, the working rod is arranged at an angle to the axis of the amplitude transformer, and the vibration assembly composed of the working rod, the transducer and the amplitude transformer has the same resonance frequency.
[0011] In one embodiment, the included angle between the axes of the working rod and the amplitude rod is 90°.
[0012] In one embodiment, the ultrasonic transducer provides a longitudinal-torsional composite vibration mode.
[0013] In one embodiment, a connecting member is further included, which includes a main body and a first connecting rod and a second connecting rod extending circumferentially from the main body. The amplitude variable rod is fixedly connected to the first connecting rod, and the working rod is fixedly connected to the second connecting rod. The vibration assembly composed of the connecting member and the working rod has the same resonance frequency as the vibration assembly composed of the transducer and the amplitude variable rod.
[0014] In one embodiment, the first connecting rod is screwed and fixed to the amplitude rod, and the second connecting rod is screwed and fixed to the working rod.
[0015] In one embodiment, the amplitude varying rod includes a first section, a second section, and a third section, the two ends of the second section are respectively connected to the first section and the third section, the outer diameters of the first section and the third section are both larger than the outer diameter of the second section, the free end of the first section is fixedly connected to the ultrasonic transducer, and the free end of the third section is fixedly connected to the working rod.
[0016] In one embodiment, the outer diameter of the third section is the same as the outer diameter of the first section.
[0017] In one embodiment, the working rod includes a fourth section, a fifth section and a sixth section, the two ends of the fifth section are respectively connected to the fourth section and the sixth section, the outer diameter of the fourth section is larger than the outer diameter of the sixth section, the outer diameter of the sixth section is larger than the outer diameter of the fifth section, and the free end of the fourth section is fixedly connected to the amplitude rod.
[0018] In one embodiment, the amplitude transformer and the working rod are integrally formed.
[0019] The present invention also provides an ultrasonic debridement device, comprising a main unit and a treatment head, wherein the treatment head is connected to the main unit via an electrical connection line, and the treatment head is any of the ultrasonic treatment heads described above.
[0020] The utility model adopts the above technical solution, which has the beneficial effect that the ultrasonic treatment head provided by the utility model is connected at an angle to the working rod having the same or approximately the same resonance frequency as the vibration assembly composed of the transducer and the amplitude rod, so that the resonance of the amplitude rod can be transmitted to the working rod, thereby realizing the angled setting of the treatment head, thereby facilitating the removal of bacterial biofilms in the corner area. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A three-dimensional schematic diagram of an ultrasonic therapy head is shown.
[0022] Figure 2 A cross-sectional schematic diagram of an ultrasonic therapy head is shown.
[0023] Figure 3 A cross-sectional schematic diagram of an ultrasonic treatment head with a working rod and a horn integrally formed is shown. DETAILED DESCRIPTION
[0024] The following will be combined with the accompanying drawings to describe in detail the preferred embodiments of the present invention so that the purpose, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.
[0025] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
[0026] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, that is, should be interpreted to mean "including, but not limited to."
[0027] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.
[0028] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.
[0029] In the following description, in order to clearly demonstrate the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.
[0030] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.
[0031] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0032] This embodiment provides an angled ultrasonic treatment head, such as Figure 1 and Figure 2 As shown, the ultrasonic therapy head includes an ultrasonic transducer 1, a horn 2 and a working rod 3. The ultrasonic transducer converts electrical signals into mechanical vibrations through the piezoelectric effect of the material and provides a longitudinal vibration mode.
[0033] The horn 2 is capable of amplifying the mechanical vibration transmitted to the working rod 3 through the horn 2. The horn 2 is provided with a stepped structure to amplify the mechanical vibration. The horn 2 includes a first section 21, a second section 22, and a third section 23, and the three sections are integrally formed. The second section 22 is located in the middle, and its two ends are connected to the first section 21 and the third section 23 respectively. The outer diameters of the first section 21 and the third section 23 are both larger than the outer diameter of the second section 22, and the outer diameters of the first section 21 and the third section 23 are the same. The connection between the first section 21 and the second section 22 is a conical transition connection, and the connection between the second section and the third section is also a conical transition connection. The length of the first section is smaller than the length of the second section, and the length of the third section is the smallest and much smaller than the length of the second section. Here, "much smaller" means that the length of the third section is at least one order of magnitude smaller than the length of the second section, that is, less than 1 / 10 of the length of the second section.
[0034] The upper end of the first section 21 is fixedly connected to the ultrasonic transducer 1. In this embodiment, the ultrasonic transducer 1 is provided with a first screw 11 extending axially along the horn 2. The top of the first section 21 is provided with a concave first screw hole 211. The first screw hole 211 is provided with an internal thread that matches the external thread of the first screw. When the ultrasonic transducer 1 is connected to the horn 2, the first screw 11 is screwed into the first screw hole 211, achieving a fixed connection between the ultrasonic transducer 1 and the horn 2.
[0035] The vibration assembly composed of the working rod 3, the amplitude converter 2 and the ultrasonic transducer 1 has the same or nearly the same resonant frequency, so that the mechanical vibration of the amplitude converter 2 can induce the resonance of the working rod 3. The axes of the working rod 3 and the amplitude converter 2 are set at an angle, and the angle is determined by actual needs. It can be any angle from 0 to 180°. The angle in this embodiment is preferably 90°. Since the axes of the working rod 3 and the amplitude converter 2 are set at an angle, the composite vibration generated by the ultrasonic transducer 1 can be transmitted to the working rod 3 connected at an angle through the amplitude converter 2, thereby facilitating the removal of bacterial biofilms in the corner area. It should be understood that since the axes of the working rod 3 and the amplitude converter 2 are set at an angle, the vibration energy transmitted to the working rod 3 by the amplitude converter 2 will inevitably be reduced, but the vibration energy of the working rod 3 can meet the energy required for debridement.
[0036] The working rod 3 is also designed with a stepped structure similar to that of the horn to amplify mechanical vibration. The working rod 3 includes a fourth section 31, a fifth section 32, and a sixth section 33, all integrally formed. The fifth section 32 is located in the middle, with its ends connecting the fourth section 31 and the sixth section 33, respectively. The outer diameters of the fourth section 31 and the sixth section 33 are both larger than the outer diameter of the fifth section 32, and the outer diameter of the fourth section 31 is larger than the outer diameter of the sixth section 33. The connection between the fourth section 31 and the fifth section 32 forms a conical transition, and the connection between the fifth section 32 and the sixth section 33 also forms a conical transition. In some embodiments, the outer diameters of the fifth section 32 and the sixth section 33 can also be the same.
[0037] In this embodiment, the horn 2 and the working rod 3 are fixedly connected via a connecting piece 4. Figure 2 , the vibration assembly composed of the connecting member 4 and the working rod 3 has the same or approximately the same resonant frequency as the vibration assembly composed of the horn 2 and the ultrasonic transducer 1, so that the vibration of the horn induces resonance between the connecting member 4 and the working rod 3. The connecting member 4 includes a circular main body 41 and a first connecting rod 42 and a second connecting rod 43 extending from the circumference of the main body 41. The angle between the first connecting rod 42 and the second connecting rod 43 is determined by the angle between the horn 2 and the working rod 3. In this embodiment, the horn 2 and the working rod 3 are arranged perpendicular to each other, so the first connecting rod 42 and the second connecting rod 43 are also arranged perpendicular to each other. Both the first connecting rod 42 and the second connecting rod 43 are provided with external threads, and the third section 23 of the horn 2 is provided with a second screw hole 231 along the axial direction. In addition, since the length of the third section 23 of the horn 2 is relatively small, the second screw hole 231 can also extend into the second section 22. The second screw hole 231 is provided with an internal thread matching the external thread of the first connecting rod 42 , so that the first connecting rod 42 and the horn 2 are threadedly connected and fixed.
[0038] Similarly, the fourth section 31 of the working rod 3 is provided with a third screw hole 311 along the axial direction. The third screw hole 311 is provided with an internal thread matching the external thread of the second connecting rod 43 , so that the second connecting rod 43 and the working rod 3 are threadedly connected and fixed.
[0039] See also Figure 3 In one embodiment, the working rod 3 and the amplitude variable rod 2 can be integrally formed, that is, the angled working rod 3 and the amplitude variable rod 2 can be directly processed by machining.
[0040] This embodiment also provides an ultrasonic debridement device including the ultrasonic treatment head, wherein the ultrasonic treatment head is connected to a host through an electrical connection line.
[0041] While the preferred embodiments of the present invention have been described in detail above, it should be understood that, after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. Such equivalents also fall within the scope of the claims appended hereto.
Claims
1. An angled ultrasonic treatment head, characterized in that: include: Ultrasonic transducer; horn; Working pole; The axial ends of the amplitude transformer are fixedly connected to the ultrasonic transducer and the working rod respectively, the working rod is arranged at an angle to the axis of the amplitude transformer, and the vibration assembly composed of the working rod, the transducer and the amplitude transformer has the same resonance frequency.
2. The ultrasonic treatment head according to claim 1, wherein: The included angle between the axes of the working rod and the amplitude rod is 90°.
3. The ultrasonic treatment head according to claim 1, wherein: The ultrasonic transducer provides a longitudinal vibration mode.
4. The ultrasonic treatment head according to claim 1, wherein: It also includes a connecting member, which includes a main body and a first connecting rod and a second connecting rod extending circumferentially from the main body. The amplitude variable rod is fixedly connected to the first connecting rod, and the working rod is fixedly connected to the second connecting rod. The vibration assembly composed of the connecting member and the working rod has the same resonance frequency as the vibration assembly composed of the transducer and the amplitude variable rod.
5. The ultrasonic treatment head according to claim 4, wherein: The first connecting rod is screwed and fixed to the amplitude rod, and the second connecting rod is screwed and fixed to the working rod.
6. The ultrasonic treatment head according to claim 1, wherein: The amplitude varying rod includes a first section, a second section and a third section, the two ends of the second section are respectively connected to the first section and the third section, the outer diameters of the first section and the third section are both larger than the outer diameter of the second section, the free end of the first section is fixedly connected to the ultrasonic transducer, and the free end of the third section is fixedly connected to the working rod.
7. The ultrasonic treatment head according to claim 6, wherein: The outer diameter of the third section is the same as the outer diameter of the first section.
8. The ultrasonic treatment head according to claim 1, wherein: The working rod includes a fourth section, a fifth section and a sixth section, the two ends of the fifth section are respectively connected to the fourth section and the sixth section, the outer diameter of the fourth section is larger than the outer diameter of the sixth section, the outer diameter of the sixth section is larger than the outer diameter of the fifth section, and the free end of the fourth section is fixedly connected to the amplitude rod.
9. The ultrasonic treatment head according to claim 1, wherein: The horn and the working rod are integrally formed.
10. An ultrasonic debridement device, comprising a main unit and a treatment head, wherein the treatment head is connected to the main unit via an electrical connection line, characterized in that: The treatment head is the ultrasonic treatment head according to any one of claims 1 to 9.