Endometrial ablation device for high-intensity focused ultrasound therapy
By designing a high-intensity focused ultrasound treatment device including a conformal ablator and a propulsion rod, the problem of small ablation range of endometrium in traditional treatment is solved, uniform ablation of the endometrium is achieved, and perimenopause abnormalities are eliminated Uterine bleeding.
Patent Information
- Application Number
- CN202420792221.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Traditional high-intensity focused ultrasound treatment is difficult to achieve uniform ablation of the endometrium, resulting in a small ablation range and the inability to completely eliminate the root cause of abnormal uterine bleeding.
Ablation endometrial device for high-intensity focus ultrasound therapy is designed, including a conformal ablator and a propulsion rod. The conformal ablator is introduced through the propulsion rod, and the ablation net and a high-intensity focus ultrasound therapy machine are used to achieve the endometrial uniform ablation.
This device can effectively ablate the endometrium, prevent abnormal uterine bleeding during perimenopause, eliminate abnormal bleeding from the source, and reduce patient discomfort.
Smart Images
Figure CN222444296U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of endometrial ablation, in particular to an endometrial ablation device for high-intensity focused ultrasound treatment. Background Art
[0002] Abnormal uterine bleeding during menopause is bleeding that exceeds normal menstrual volume, duration, regularity or frequency during menopause. The premise of diagnosis is to exclude abnormal uterine bleeding caused by structural abnormalities such as malignant tumors, hyperplasia, polyps, and myomas. The causes of abnormal uterine bleeding during menopause are mostly ovulation disorders and local hyperfibrinolysis of the endometrium. The disease often presents with repeated, long-term or heavy vaginal bleeding, causing anemia and even hemorrhagic shock in patients. It causes great physical and mental distress to perimenopausal women. If not treated in time, it may even lead to endometrial lesions in the long run.
[0003] High-intensity focused ultrasound is a method that uses the aggregation, penetration, directionality and conductivity of ultrasound to focus the ultrasound waves in the target area. Through thermal effect, cavitation effect and mechanical effect, the temperature in the target area is raised to above 60 degrees, causing irreversible coagulative necrosis of the tissue, thus achieving the purpose of ablating the lesion. High-intensity focused ultrasound treatment is a non-invasive treatment method, which has been widely used in gynecological and obstetric solid tumor diseases, such as uterine fibroids and adenomyosis.
[0004] However, conventional high-intensity focused ultrasound focuses on normal endometrial tissue and only has a small-range ablation effect on the surrounding local endometrial tissue, and cannot have a uniform ablation effect on the entire endometrial tissue. In order to solve the problems of small ablation range and inability to completely and uniformly ablate the endometrium, the present application proposes an endometrial ablation device for high-intensity focused ultrasound treatment. Utility Model Content
[0005] The utility model provides a device for ablating endometrium for high-intensity focused ultrasound treatment, aiming to solve the above-mentioned problems.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A device for ablating endometrium for high-intensity focused ultrasound therapy comprises a conformal ablator and a push rod, wherein the proximal end of the push rod is detachably connected to the conformal ablator, the conformal ablator comprises an ablation mesh and a placement rod, the distal end of the placement rod is connected to the proximal end of the push rod, the proximal end of the placement rod is connected to a center rod and two conformal rods, the center rod is located between the two conformal rods, the ablation mesh is connected to the center rod and the two conformal rods, an elastic member is connected between the center rod and the conformal rods, and the conformal rod is connected to the push rod via a pull wire to fold or unfold the conformal ablator.
[0008] Furthermore, the ablation mesh is a metal mesh.
[0009] Furthermore, a connecting block is provided on the conformable rod, a fixing hole is provided on the propulsion rod, one end of the pull wire is connected to the connecting block, and a free end of the pull wire is connected to the fixing hole.
[0010] Furthermore, the pushing rod comprises an inner rod and an outer sheath tube, the inner rod is slidably connected inside the outer sheath tube, and the proximal end of the inner rod is connected to the placement rod.
[0011] Furthermore, a limit knob for limiting the position of the inner rod is threadedly connected to the outer sheath tube.
[0012] Furthermore, a clamping block is provided at the proximal end of the inner rod, and a clamping slot is provided at the distal end of the placement rod, and the clamping block is clamped in the clamping slot.
[0013] Furthermore, the inner rod is provided with a scale.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model provides a device for ablating endometrium for high-intensity focused ultrasound treatment. The conformal ablator is introduced into the uterus through a push rod, and the conformal ablator is deployed to conform to the endometrial tissue. In cooperation with a high-intensity focused ultrasound machine, the ablation net conducts the local high temperature generated by the high-intensity focused ultrasound, and the heat energy is evenly distributed in the endometrial tissue, causing irreversible coagulative necrosis of the endometrial tissue, causing it to lose its function and no longer have abnormal bleeding, thereby eliminating the occurrence of abnormal uterine bleeding in perimenopause from the source. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the front view of a device for ablating endometrium for high-intensity focused ultrasound therapy according to the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the conformable ablator of the utility model;
[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of a device for ablating endometrium for high-intensity focused ultrasound therapy according to the utility model;
[0019] Figure 4 This is a schematic diagram of the rear view structure of a device for ablating endometrium for high intensity focused ultrasound therapy according to the utility model;
[0020] In the figure, 1 is a conformal ablator, 2 is a push rod, 3 is an inner rod, 4 is an outer sheath, 5 is an ablation mesh, 6 is a placement rod, 7 is a center rod, 8 is a conformal rod, 9 is an elastic member, 10 is a pull wire, 11 is a connecting block, 12 is a fixing hole, 13 is a limit knob, 14 is a card block, 15 is a card slot, and 16 is a scale. DETAILED DESCRIPTION
[0021] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.
[0022] Example
[0023] See also Figures 1 to 4 The utility model provides a high-intensity focused ultrasound therapy endometrial ablation device, comprising a conformal ablator 1 and a push rod 2, wherein the proximal end of the push rod 2 is detachably connected to the conformal ablator 1, and the detachable connection mode can be selected as a clamping connection or a threaded connection. According to different uterine cavity depths, when in use, a suitable type of conformal ablator 1 can be selected to be connected to the push rod 2, wherein the conformal ablator 1 comprises an ablation net 5 and a placement rod 6, wherein the distal end of the placement rod 6 is connected to the proximal end of the push rod 2, and it is convenient to connect conformal ablators 1 of different types, wherein the proximal end of the placement rod 6 is connected to a central rod 7 and two conformal rods 8, wherein the central rod 7 is located between the two conformal rods 8, wherein the ablation net 5 is connected to the central rod 7 and the two conformal rods 8, and the conformal rod 8 has a relatively soft texture. It is soft and can conform to the endometrium, reducing the discomfort of the patient. The ablation mesh 5 is a metal mesh, which has a conductive effect on the local high temperature generated by high-intensity focused ultrasound, and can evenly distribute the heat energy in the endometrial tissue. An elastic member 9 is connected between the central rod 7 and the conformable rod 8. When the pull wire 10 is loosened, under the action of the elastic member 9, the conformable rods 8 on the left and right sides are reset and contracted into rods, which is convenient for taking out the conformable ablator 1. The elastic member 9 can be selected from elastic components such as springs and high-temperature resistant rubber bands. The conformable rod 8 is connected to the push rod 2 through the pull wire 10 to fold or unfold the conformable ablator 1, and the conformable dilator is introduced into the uterine cavity through the push rod 2. The pull wire 10 is pulled to make the conformable ablator 1 conform to the uterine cavity and expand. The conformable ablator 1 is in a contracted state when not in use.
[0024] See also Figure 1 and Figure 2 A connecting block 11 is provided on the conformable rod 8, and a fixing hole 12 is provided on the propulsion rod 2. One end of the pull wire 10 is connected to the connecting block 11, and the free end of the pull wire 10 is connected to the fixing hole 12. The pull wire 10 pulls the conformable rod 8 to open to the left and right sides. After the conformable rod 8 is opened to a suitable position, one end of the pull wire 10 is fixed to the fixing hole 12 to maintain the opening degree of the conformable rod 8.
[0025] See also Figure 1 and 4The pushing rod 2 includes an inner rod 3 and an outer sheath 4. The inner rod 3 is slidably connected to the outer sheath 4. The outer sheath 4 is a transparent tube. The proximal end of the inner rod 3 is connected to the placement rod 6. The outer sheath 4 is threadedly connected with a limit knob 13 for limiting the position of the inner rod 3. The inner rod 3 is pushed to a suitable position and fixed to the outer sheath by the limit knob 13. The inner rod 3 is provided with a scale 16 to understand the pushing depth of the conformal ablator 1.
[0026] See also Figure 3 A block 14 is provided at the proximal end of the inner rod 3, and a slot 15 is provided at the distal end of the placement rod 6. The block 14 is snapped into the slot 15, and different types of conformal ablators 1 can be connected according to different uterine cavity depths.
[0027] When in use, first measure the depth of the uterine cavity, select a suitable type of conformal ablator 1 according to the depth of the uterine cavity, fix the placement rod 6 to the proximal end of the inner rod 3 through the cooperation of the card slot 15 and the card block 14, and form a conformal ablator 1 suitable for the size of the uterine cavity. Push the inner rod 3 to push the conformal ablator 1 toward the uterine cavity according to the depth of the uterine cavity. The depth can be known by the scale 16 on the inner rod 3. After the conformal ablator 1 is introduced to the appropriate position, turn the limit knob 13 to fix the inner rod 3 on the outer sheath 4, and fix the relative position of the push rod 2 and the conformal ablator 1. After the conformal ablator 1 is delivered to the bottom of the uterine cavity, the pull wire 10 pulls the conformal rods 8 on the left and right sides, and the conformal rods 8 open to both sides. The conformal ablator 1 opens to an appropriate degree, and the conformal rods 8 on the left and right sides conform to the endometrial tissue. The pull wire 10 is fixed on the fixing hole 12, and in conjunction with the high-intensity focused ultrasound therapy machine, the ablation net 5 conducts the local high temperature generated by the high-intensity focused ultrasound, and the heat energy is evenly distributed in the endometrial tissue, causing irreversible coagulative necrosis of the endometrial tissue, thereby achieving endometrial ablation. When taking it out, the pull wire 10 is dissociated from the fixing hole 12, and under the action of the elastic member 9, the conformal rods 8 on the left and right sides are reset, and the conformal ablator 1 returns to the contracted state and is taken out from the uterine cavity.
[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A device for ablating endometrium for high intensity focused ultrasound therapy, characterized in that: It includes a conformal ablator and a push rod, the proximal end of the push rod is detachably connected to the conformal ablator, the conformal ablator includes an ablation mesh and a placement rod, the distal end of the placement rod is connected to the proximal end of the push rod, the proximal end of the placement rod is connected to a center rod and two conformal rods, the center rod is located between the two conformal rods, the ablation mesh is connected to the center rod and the two conformal rods, an elastic member is connected between the center rod and the conformal rod, and the conformal rod is connected to the push rod by a pull wire to fold or unfold the conformal ablator.
2. The high-intensity focused ultrasound ablation device for endometrial ablation according to claim 1, characterized in that: The ablation mesh is a metal mesh.
3. The high-intensity focused ultrasound ablation device for endometrial ablation according to claim 1, characterized in that: The conformable rod is provided with a connecting block, the propulsion rod is provided with a fixing hole, one end of the pull wire is connected to the connecting block, and the free end of the pull wire is connected to the fixing hole.
4. The high-intensity focused ultrasound ablation device for endometrial ablation according to claim 1, characterized in that: The pushing rod comprises an inner rod and an outer sheath tube, the inner rod is slidably connected inside the outer sheath tube, and the proximal end of the inner rod is connected to the placing rod.
5. The high-intensity focused ultrasound ablation device for endometrial ablation according to claim 4, characterized in that: The outer sheath tube is threadedly connected with a limit knob for limiting the position of the inner rod.
6. The high-intensity focused ultrasound ablation device for endometrial ablation according to claim 4, characterized in that: A clamping block is provided at the proximal end of the inner rod, and a clamping slot is provided at the distal end of the placement rod, and the clamping block is clamped in the clamping slot.
7. The device for ablating endometrium for high intensity focused ultrasound therapy according to claim 4, characterized in that: The inner rod is provided with a scale.