Endoscope straight-bar type curved surface scanning treatment head

Abstract

The present application belongs to the technical field of medical equipment, and particularly relates to an endoscopic straight rod type curved surface scanning treatment head, which comprises a shell, one end of the shell forms a handle part, the other end of the shell is open, a support assembly is fixed to the inner wall of the shell close to the opening, a sound transmission cover is arranged on the opening, a cavity is formed between the support assembly and the sound transmission cover, a focusing transducer is arranged in the cavity, the focusing transducer is connected to one end of a crank assembly, the other end of the crank assembly is connected to a rotating assembly, the rotating assembly is connected to a lifting assembly, so that the crank assembly drives the focusing transducer to rotate and swing in the whole cavity, and uniform scanning of involute curved surface or annular curved surface is realized. The focusing transducer in the treatment head can rotate uniformly in an annular involute manner, and deep, shallow and medium curved surface treatment of the cervix is realized. The elliptical shell of the treatment head is relatively fixed with the position of the cervix in the patient's body, and treatment modes such as treatment area design and fixed point treatment can be designed according to the treatment needs of the patient, and conformal treatment of curved surface is realized.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and relates to an ultrasound therapy device, particularly an endoscopic straight rod curved surface scanning therapy head. Background Technology

[0002] Chronic cervicitis is a common gynecological disease, affecting 60% to 80% of women of reproductive age. Currently, the main physical treatments for chronic cervicitis include laser therapy, cryotherapy, infrared coagulation therapy, microwave therapy, loop electrosurgical excision procedure (LEEP), and focused ultrasound therapy. Except for focused ultrasound therapy, these physical treatment methods target and destroy the cervical lesions from the outer layer to the deeper tissues, allowing surrounding normal squamous epithelium to grow towards the cervical canal and cover the wound. However, these physical treatment methods have the following drawbacks:

[0003] (1) The treatment depth is insufficient, making it difficult to destroy deep lesions, resulting in incomplete treatment and a high probability of recurrence;

[0004] (2) Damage to the cervical epithelium produces scars, which destroy the normal cervical structure and are difficult to repair;

[0005] (3) Scar formation can cause cervical stenosis, increasing the likelihood of cervical dystocia and infertility;

[0006] (4) Many side effects after treatment, such as excessive vaginal discharge, scab shedding, and bleeding.

[0007] Focused ultrasound therapy uses low-energy ultrasound waves from outside the body to penetrate the tissue and focus on the target area. The resulting thermal effect extends from the deep tissue to the superficial layer, directly destroying pathogens (streptococci, staphylococci, enterococci, gonococci, chlamydia trachomatis, HPV, etc.) and their products. Under the same energy intensity of ultrasound waves, inflammatory cells and diseased tissues are damaged or destroyed first, while the normal cervical structure is preserved, and the tissue can restore its normal elasticity and function. While treating damaged lesions, focused ultrasound therapy can also improve local microcirculation and enhance local immune function.

[0008] Currently, focused ultrasound therapy uses an endoscopic straight-rod treatment head. The main body of the device extends through the vagina to the cervix. By adjusting the focused ultrasound plane, the lesions on the cervix are treated using focused ultrasound waves. During treatment, the operator needs to hold the endoscopic straight-rod device and move it over the surface of the cervix (approximately 30-40 mm in diameter). However, this type of endoscopic straight-rod treatment head still has some drawbacks: the operator cannot observe the condition of the cervix during treatment, requiring endoscopes or other equipment to pinpoint the lesion area and adjust the focused ultrasound plane; the device cannot move evenly along the circular involute pattern of the cervix, leading to a degree of blindness in treatment and increasing the risk of missed treatment points, excessively long treatment times for individual points, and overlapping treatment points. Excessive treatment time for individual points or overlapping treatment points result in overtreatment, which can damage the normal cervical structure and is difficult to repair; missed treatment points lead to incomplete treatment and prevent the complete cure of chronic cervicitis. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to overcome the problems of missed treatment points, excessive treatment time for individual points, and overlapping treatment points in the existing endoscopic straight rod treatment head, and to provide an endoscopic straight rod curved surface scanning treatment head.

[0010] The technical solution adopted by this invention to solve its technical problem is: an endoscopic straight rod curved surface scanning treatment head, including a shell,

[0011] One end of the outer casing forms a handle for the operator to grip;

[0012] The other end of the outer shell is open, and a support component is fixed to the inner wall of the outer shell near the opening. A sound-permeable cover is provided on the opening, and a cavity is formed between the support component and the sound-permeable cover to hold the coupling water to form a water bladder.

[0013] A focusing transducer is provided in the cavity. The focusing transducer is connected to one end of a crank assembly, and the other end of the crank assembly is connected to a rotating assembly. The rotating assembly is connected to a lifting assembly so that the crank assembly drives the focusing transducer to rotate and swing throughout the cavity, thereby achieving uniform scanning of the involute surface or the annular surface.

[0014] Furthermore, the outer casing is composed of a handle casing and a straight rod casing assembled together. The straight rod casing includes an outer shell and an inner shell, with symmetrically distributed circulating water channels formed between the outer shell and the inner shell, so that the cross-section of the straight rod casing is elliptical.

[0015] Furthermore, one end of the outlet of the circulating water channel is located inside the cavity, and the other end of the inlet of the circulating water channel is located on the end face of the handle.

[0016] Furthermore, the lifting assembly is disposed inside the handle housing and includes a lifting stepper motor, a reducer, and a lifting screw. The lifting stepper motor is connected to the reducer, and the output end of the lifting stepper motor is connected to the lifting screw. The lifting screw extends into the straight rod housing and is provided with a threaded sleeve that moves back and forth along it. The threaded sleeve is connected to the mounting base of the rotating assembly.

[0017] Furthermore, the input end of the lifting stepper motor is connected to a manual adjustment component that extends out of the handle housing.

[0018] Furthermore, a lifting guide rail is provided protruding from the inner wall of the inner shell of the straight rod housing, and a sliding groove is provided on the side wall of the mounting base to slide along the lifting guide rail.

[0019] Furthermore, the rotating assembly includes a rotary motor and an adapter. The rotary motor is connected to the mounting base, and the output shaft of the rotary motor is connected to the adapter. One end of the adapter is hinged to one end of the crank assembly.

[0020] Furthermore, the crank assembly includes connecting rod one and connecting rod two hinged together. When connecting rod one and connecting rod two are in a straight line, the focusing transducer is located at the bottom of the cavity. Connecting rod two is provided with a universal rotating component that rotates on the support assembly.

[0021] Furthermore, the support assembly includes a support frame and a mounting plate. The support frame is tightly fitted onto the inner wall of the inner housing. A through hole is provided in the middle of the support frame for the second connecting rod to pass through. A flange protrudes from the upper edge of the support frame. The mounting plate is located within the flange and is connected to the support frame by bolts. A mating hole is provided in the middle of the mounting plate to accommodate the rotation of the universal rotating component.

[0022] Furthermore, the sound-permeable cover is a hard shell cover with a spherical curved surface structure, the handle is equipped with a control panel, and the end face of the handle is equipped with a cable inlet.

[0023] The beneficial effects of this invention are:

[0024] The maximum treatment depth for curved surface treatment is achieved when the swing angle of the focusing transducer is 0 degrees, i.e., when its axis coincides with the central axis of the treatment head; when the maximum swing angle of the focusing transducer is the largest, i.e., when the angle between its axis and the central axis of the treatment head is the largest, the focused treatment is at the edge of the treatment head, which is the shallowest treatment depth for curved surface treatment. Thus, the treatment depth can be achieved through the lifting assembly, rotating assembly, and crank assembly of the present invention, without requiring the operator to adjust the position of the treatment head inside the body.

[0025] The focusing transducer inside the treatment head of this invention can rotate uniformly in an involute ring, achieving curved treatment of the cervix from deep to superficial layers; it achieves uniform involute ring movement without manual operation.

[0026] The treatment head of this invention is positioned relatively fixed to the cervix inside the patient's body. Treatment methods such as treatment area and fixed-point treatment can be designed according to the patient's treatment needs, so as to achieve conformal treatment of curved surfaces.

[0027] The treatment head of this invention is equipped with a miniature camera and a light-emitting element at its front end, which facilitates image imaging during treatment. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the structure of the present invention.

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure from another direction.

[0031] Figure 3 This is a schematic diagram of the structure of the present invention without the outer shell.

[0032] Figure 4 This is an assembly diagram of the present invention.

[0033] Figure 5 yes Figure 4 A schematic diagram of the structure from another direction.

[0034] Figure 6 This is a schematic diagram illustrating the automatic treatment of the cervix according to the present invention.

[0035] Figure 7 This is a schematic diagram of the single-ring treatment of the cervix according to the present invention.

[0036] Figure 8 This is a schematic diagram of another embodiment of the present invention.

[0037] In the picture:

[0038] 1. Outer casing; 11. Handle outer casing; 12. Straight rod outer casing; 121. Lifting guide rail; 13. Circulating water channel.

[0039] 2. Support assembly, 21. Support frame, 211. Flange, 22. Mounting plate,

[0040] 3. Acoustic shield; 4. Focusing transducer;

[0041] 5. Crank assembly, 51. Connecting rod one, 52. Connecting rod two, 521. Universal joint,

[0042] 6. Rotating assembly; 60. Mounting base; 601. Slide; 61. Rotary motor; 62. Adapter.

[0043] 7. Lifting assembly; 71. Lifting stepper motor; 711. Manual adjustment component; 72. Reducer; 73. Lifting screw; 74. Threaded sleeve.

[0044] 8. Control Panel. Detailed Implementation

[0045] The present invention will now be further described in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner, and therefore only show the components relevant to the invention.

[0046] like Figures 1-3 As shown, the endoscopic straight rod treatment head includes a housing 1, one end of which forms a handle for the operator to hold; the other end of the housing 1 is open, and a support assembly 2 is fixed to the inner wall of the housing 1 near the opening. A sound-transmitting cover 3 is provided on the opening, and a cavity is formed between the support assembly 2 and the sound-transmitting cover 3 for holding coupling water to form a water sac; a focusing transducer 4 is provided in the cavity, and the focusing transducer 4 is connected to one end of a crank assembly 5. The other end of the crank assembly 5 is connected to a rotating assembly 6, and the rotating assembly 6 is connected to a lifting assembly 7, so that the crank assembly 5 drives the focusing transducer 4 to rotate and swing throughout the cavity, so as to achieve uniform scanning of the involute surface or the annular surface.

[0047] The acoustic enclosure 3 is a rigid shell with a spherical curved surface to ensure full coupling between the focusing transducer 4 and the coupling water inside the cavity. A control panel 8 is located on the handle for easy opening, closing, and related visual operations. A cable inlet is located on the end face of the handle, ensuring it does not interfere with the operator's work. A thin-film planar structure can be added to or used at the rear of the acoustic enclosure 3. The acoustic enclosure 3 is a disposable design for easy replacement.

[0048] The outer casing 1 consists of a handle casing 11 and a straight rod casing 12 assembled together. The straight rod casing 12 includes an outer shell and an inner shell, with symmetrically distributed circulating water channels 13 formed between the outer shell and the inner shell, so that the cross-section of the straight rod casing 12 is elliptical. Figure 4 As shown. The outer shell and inner shell referred to here are equivalent to the straight rod outer shell 12 having an outer layer and an inner layer, with the circulating water channel 13 located between the outer layer and the inner layer. In actual manufacturing, the diameter of the outer shell 1 is 20-40 mm, with an optimal diameter of 25-35 mm. The elliptical straight rod outer shell 12 is fixed relative to the position of the cervix in the patient's body, providing treatment coordinate positioning for treatment planning. One end of the circulating water channel 13 is located in the cavity, and the other end of the circulating water channel 13 is located on the end face of the handle.

[0049] Furthermore, other channels are provided between the outer shell and the inner shell. Imaging devices, lighting devices, etc., can be installed in these channels. The imaging devices are specifically miniature cameras used in medicine with cables, and the lighting devices are light-emitting conductors. They can be installed together with the imaging devices or separately in the channels. More specifically, the miniature camera head can be placed on one side of the front end of the treatment head, and the light-emitting element can be placed on the other side of the front end.

[0050] like Figure 4 As shown, the support assembly 2 includes a support frame 21 and a mounting plate 22. The support frame 21 is tightly fitted onto the inner wall of the inner shell. The support frame 21 has a through hole in the middle for the connecting rod 52 to pass through. A flange 211 protrudes from the upper edge of the support frame 21. The mounting plate 22 is located in the flange 211 and is connected to the support frame 21 by bolts. The mounting plate 22 has a mating hole in the middle to accommodate the rotation of the universal rotating component 521.

[0051] like Figure 3 and Figure 5 As shown, the crank assembly 5 includes connecting rod 1 51 and connecting rod 2 52 hinged together. When connecting rod 1 51 and connecting rod 2 52 are in a straight line, the focusing transducer 4 is located at the bottom of the cavity. Connecting rod 2 52 is provided with a universal rotating member 521 (spherical structure) that rotates on the support assembly 2. Of course, the crank assembly 5 can also be composed of more connecting rods (e.g., 3 rods), but the angle between the connecting rod segments, the relationship with the length of the straight rod housing 12, and the swing of the focusing transducer 4 need to be considered.

[0052] like Figure 4 and Figure 5 As shown, the lifting assembly 7 is housed within the handle housing 11 and includes a lifting stepper motor 71, a reducer 72, and a lifting screw 73. The lifting stepper motor 71 is connected to the reducer 72, and its output end is connected to the lifting screw 73. The lifting screw 73 extends into the straight rod housing 12 and has a threaded sleeve 74 that moves back and forth along it. The threaded sleeve 74 is connected to the mounting base 60 of the rotating assembly 6. A lifting guide rail 121 protrudes from the inner wall of the straight rod housing 12, and a sliding groove 601 is formed on the side wall of the mounting base 60, which slides along the lifting guide rail 121. When the lifting stepper motor 71 rotates, it drives the lifting screw 73 to rotate. The threaded sleeve 74 drives the mounting base 60 to move back and forth along the lifting screw 73. At the same time, the mounting base 60 slides along the lifting guide rail through the sliding groove 601, ensuring the stability of the lifting of the mounting base 60.

[0053] like Figures 3-5 As shown, the rotating assembly 6 includes a rotating motor 61 and an adapter 62. The rotating motor 61 is connected to the mounting base 60, and the output shaft of the rotating motor 61 is connected to the adapter 62. One end of the adapter 62 is hinged to one end of the crank assembly 5.

[0054] The system comprises a lifting mechanism consisting of a lifting stepper motor 71 and a reducer 72, a rotary motor 61 (stepper motor), a two-stage crank connecting rod, and a focusing transducer 4, forming a rotating mechanical structure. This mechanical structure is housed within a shell composed of an elliptical outer shell 1 and a spherical curved hard shell acoustic hood 3. The lifting mechanism, through the bending of the two-stage crank connecting rod, causes the focusing transducer 4 to deflect at an angle with the central axis of the treatment head. The rotary motor 61 then rotates to generate a circular scan. The combination of these two mechanisms achieves an involute surface scan. The elliptical straight rod outer shell 12 has circulating water channels 13 on both sides providing circulating degassed water to the acoustic hood 3. This circulating degassed water fills the spherical curved hard shell acoustic hood 3, causing the focusing transducer 4 to oscillate and rotate within the cavity. During treatment, the acoustic hood 3 has good acoustic coupling with the patient's cervical epithelium. When the swing angle of the focusing transducer 4 is 0 degrees, that is, when its axis coincides with the central axis of the treatment head, it is the deepest treatment depth of the curved surface treatment; when the swing angle of the focusing transducer 4 is at its maximum, that is, when the angle between its axis and the central axis of the treatment head is at its maximum, the focused treatment is at the edge of the treatment head, which is the shallowest treatment depth of the curved surface treatment.

[0055] Automatic treatment: The system allows for setting the height range of the lifting device, the treatment speed of the rotary motor (61), and the ultrasonic energy based on the patient's condition. For example... Figure 6 As shown, after the treatment head achieves good acoustic coupling with the cervical surface, the automatic treatment button is activated via control panel 8. The treatment head then performs a complete involute (circular) surface scan treatment from the outside to the inside (or from the inside to the outside). The involute (circular) surface is as follows: Figure 6 As shown in the hidden section, the device automatically stops working upon completion of the scan. The height adjustment mechanism controls the deflection angle between the focusing transducer 4 and the central axis of the treatment head. The rotating motor 61 drives the focusing transducer 4 in a circular motion, and the combination of these two mechanisms achieves involute (circular) surface scanning.

[0056] Single-ring treatment: The height of the lift, the treatment speed of the rotary motor, and the ultrasonic energy are set according to the patient's condition. For example... Figure 7 As shown, after the treatment head achieves good acoustic coupling with the cervical surface, the automatic treatment button is activated via control panel 8. The treatment head then performs a complete circular scanning treatment, with the circular curved surface as shown... Figure 7 As shown in the shaded area, the device automatically stops working upon completion of the scan. The height adjustment mechanism controls the deflection angle between the focusing transducer 4 and the central axis of the treatment head, causing the rotary motor 61 to rotate the transducer in a circular motion.

[0057] Conformal Treatment: Based on the patient's condition, the treatment area and ultrasound energy are selected, and the height of the lift and the position of the rotary motor 61 are configured. After the treatment head achieves good acoustic coupling with the cervical surface, the treatment is initiated via the control panel 8. The treatment head performs conformal area scanning treatment, and the device automatically stops upon completion of the scan. The height of the lift controls the deflection angle between the focusing transducer 4 and the central axis of the treatment head, while the rotary motor 61 controls the annular coordinate position of the focusing transducer 4. For single-point treatment, the deflection angle between the focusing transducer 4 and the central axis of the treatment head is 0°.

[0058] As another implementation method, such as Figure 8 As shown (without the outer casing 1), the input end of the lifting stepper motor 71 is connected to a manual adjustment piece 711 extending out of the handle casing 11. The height of the rotary motor 61 can be adjusted manually using the manual adjustment piece 711, thereby changing the degree of bending of the crank assembly 5, i.e., changing the deflection angle between the focusing transducer 4 and the central axis of the treatment head. Alternatively, the lifting stepper motor 71 can be omitted, and a worm gear structure can be used. The torsion disk 711 shaft is connected to the worm gear, which meshes with the worm. The worm is connected to the lifting screw 73, and the worm is mounted on a mounting bracket via bearings. This mounting bracket is located on the inner wall of the handle casing 11.

[0059] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An endoscopic straight rod curved surface scanning treatment head, comprising a housing (1), characterized in that: One end of the outer casing (1) forms a handle for the operator to hold; The other end of the outer shell (1) is open, and a support component (2) is fixed on the inner wall of the outer shell (1) near the opening. A sound-permeable cover (3) is provided on the opening. A cavity is formed between the support component (2) and the sound-permeable cover (3) to hold coupling water to form a water bag. A focusing transducer (4) is provided in the cavity. The focusing transducer (4) is connected to one end of a crank assembly (5). The other end of the crank assembly (5) is connected to a rotating assembly (6). The rotating assembly (6) is connected to a lifting assembly (7). The crank assembly (5) includes a connecting rod one (51) and a connecting rod two (52) hinged together. When the connecting rod one (51) and the connecting rod two (52) are on a straight line, the focusing transducer (4) is located at the bottom of the cavity. The connecting rod two (52) is provided with a universal rotating part (521) that rotates on the support assembly (2). The lifting assembly (7) bends the crank assembly (5) to make the focusing transducer (4) deflect at an angle with the central axis of the treatment head. The rotating assembly (6) rotates so that the crank assembly (5) drives the focusing transducer (4) to rotate and swing throughout the cavity, thereby achieving uniform scanning of the involute surface or the annular surface. The treatment head is also equipped with a miniature camera and a light source at the front end to facilitate image imaging during treatment.

2. The endoscopic straight rod curved surface scanning treatment head according to claim 1, characterized in that: The outer shell (1) consists of a handle shell (11) and a straight rod shell (12) assembled together. The diameter of the outer shell (1) is 20-40 mm. The straight rod shell (12) includes an outer shell and an inner shell. A symmetrically distributed circulation channel (13) is formed between the outer shell and the inner shell, so that the cross-section of the straight rod shell (12) is elliptical.

3. The endoscopic straight rod curved surface scanning treatment head according to claim 2, characterized in that: The outlet of the circulating water channel (13) is located inside the lower end of the cavity, and the inlet of the other end of the circulating water channel (13) is located on the end face of the handle.

4. The endoscopic straight rod curved surface scanning treatment head according to claim 2, characterized in that: The lifting assembly (7) is located inside the handle housing (11) and includes a lifting stepper motor (71), a reducer (72) and a lifting screw (73). The lifting stepper motor (71) is connected to the reducer (72), and the output end of the lifting stepper motor (71) is connected to the lifting screw (73). The lifting screw (73) extends into the straight rod housing (12) and is provided with a threaded sleeve (74) that moves back and forth along it. The threaded sleeve (74) is connected to the mounting base (60) of the rotating assembly (6).

5. The endoscopic straight rod curved surface scanning treatment head according to claim 4, characterized in that: The input end of the lifting stepper motor (71) is connected to a manual adjustment piece (711) that extends out of the handle housing (11).

6. The endoscopic straight rod curved surface scanning treatment head according to claim 4, characterized in that: The inner wall of the straight rod housing (12) is provided with a lifting guide rail (121) protruding from the inner shell, and the side wall of the mounting base (60) is provided with a sliding groove (601) that slides along the lifting guide rail (121).

7. The endoscopic straight rod curved surface scanning treatment head according to claim 4, characterized in that: The rotating assembly (6) includes a rotary motor (61) and an adapter (62). The rotary motor (61) is connected to the mounting base (60), and the output shaft of the rotary motor (61) is connected to the adapter (62). One end of the adapter (62) is hinged to one end of the crank assembly (5).

8. The endoscopic straight rod curved surface scanning treatment head according to claim 7, characterized in that: The support assembly (2) includes a support frame (21) and a mounting plate (22). The support frame (21) is tightly fitted on the inner wall of the inner shell. The support frame (21) has a through hole in the middle for the connecting rod (52) to pass through. The upper edge of the support frame (21) protrudes to form a flange (211). The mounting plate (22) is located in the flange (211) and is connected to the support frame (21) by bolts. The mounting plate (22) has a mating hole in the middle to accommodate the rotation of the universal rotating part (521).

9. The endoscopic straight rod curved surface scanning treatment head according to claim 7, characterized in that: The sound-permeable cover (3) is a hard shell cover with a spherical surface structure or a thin film plane. The handle is provided with a control panel (8) and a cable inlet is provided on the end face of the handle.

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