Uterine cavity ultrasonic diagnosis device
By designing a hysteroscopic ultrasound diagnostic device that can deflect at multiple angles, the problems of excessively large probe diameter and insufficient resolution have been solved, enabling non-invasive, high-resolution hysteroscopic examination and improving diagnostic accuracy and patient experience.
Patent Information
- Application Number
- CN202511327007.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2025-11-21
AI Technical Summary
Existing intrahysteroscopic ultrasound devices have probes with excessively large diameters, making it difficult to stably perform multi-angle ultrasound examinations. Furthermore, traditional methods such as transvaginal ultrasound have insufficient resolution, and hysteroscopy is an invasive procedure with a poor patient experience.
A hysteroscopic ultrasound diagnostic device was designed, including a handle, an insertion part, a transmission assembly, and an operating part. The ultrasound probe is rotatably mounted at the end of the guide rod. The probe can be deflected at multiple angles through a crank and an angle limiting structure. It is also equipped with a narrow diameter design to reduce patient pain.
It improves the diagnostic range and accuracy of intrauterine cavity examination, reduces patient pain, avoids the shortcomings of traditional methods, and achieves non-invasive, high-resolution intrauterine cavity examination.
Smart Images
Figure CN120983082A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to an intrauterine ultrasound diagnosis device. BACKGROUND
[0002] Currently, accurate diagnosis of uterine cavity and related diseases is crucial in gynecological and obstetrical clinical practice, such as evaluation of abnormal uterine bleeding, endometrial polyps, submucous myoma, intrauterine adhesions, endometrial cancer, etc. Currently, the commonly used imaging examination methods in clinical practice mainly include transabdominal ultrasound, transvaginal ultrasound and hysteroscopy.
[0003] Transabdominal ultrasound is non-invasive, but its resolution is limited and is greatly affected by factors such as abdominal wall thickness and intestinal gas interference, making it difficult to clearly display the subtle lesions of the endometrium and uterine cavity.
[0004] Transvaginal ultrasound is the current mainstream examination method, and its resolution is significantly higher than that of transabdominal ultrasound. However, the transvaginal ultrasound probe is located in the vaginal vault, which is still a certain distance from the uterine cavity, and the sound beam needs to penetrate the uterine muscle layer to image the uterine cavity. There are still limitations in the diagnosis of small lesions (such as <5mm endometrial polyps and superficial infiltration of early endometrial cancer), which can easily lead to missed diagnosis or unclear diagnosis.
[0005] Hysteroscopy can provide color images under direct vision, but hysteroscopy is an invasive procedure that needs to be performed in an operating room environment and may require anesthesia. It has the risks of uterine perforation, infection, bleeding, etc. and is expensive, with poor patient experience, making it difficult to be used as a routine screening method.
[0006] In order to make up for the shortcomings of the above-mentioned technologies, endoluminal ultrasound technology has been developed. Some existing intrauterine ultrasound probes attempt to enter the uterine cavity through the cervical os for scanning, in order to obtain clearer images than transvaginal ultrasound and closer to the lesions. However, these existing ultrasound detection devices still have some common problems, such as the probe diameter being too large, making it difficult to smoothly pass through the cervical canal of non-pregnant women or postmenopausal women, causing pain and difficulty in operation for the patient; the scanning angle is fixed, and it cannot simultaneously satisfy the observation of the large range of uterine cavity shape and the high-resolution fine scanning of the specific suspicious area.
[0007] SUMMARY The present application provides an intrauterine ultrasound diagnosis device to at least solve or improve the problem that the existing device for entering the uterine cavity through the cervical route for ultrasound detection has a probe diameter that is too large, making it difficult to stably perform multi-angle ultrasound detection.
[0008] The present application provides an intrauterine ultrasound diagnosis device, comprising: a handle comprising a shell and a rotating shaft, the rotating shaft being rotatably arranged in the shell; The insertion part comprises an ultrasonic probe and a guide rod, the ultrasonic probe is rotatably arranged at the end of the guide rod, and the first end of the guide rod is connected with the shell; The transmission assembly is arranged along the extension direction of the guide rod, one end of the transmission assembly is connected with the rotating shaft, and the other end is connected with the ultrasonic probe; The operation part comprises a handle and an angle limiting structure, the handle is rotatably arranged on the shell along the rotation axis of the rotating shaft, and the handle is connected with the rotating shaft through the angle limiting structure; The shell is provided with at least two locking positions along the circumference of the rotating shaft, and the angle limiting structure can be selectively locked with any one of the locking positions during the rotation of the handle.
[0009] According to the uterine cavity ultrasonic diagnosis device provided by the application, the transmission assembly comprises: The swing arm is arranged on the rotating shaft and can rotate with the rotating shaft; The pull rod comprises a curved segment and a straight segment, the first end of the curved segment is rotatably connected with the end of the swing arm away from the rotating shaft, the second end of the curved segment is connected with the first end of the straight segment, the straight segment is movably arranged in the guide rod, and the second end of the straight segment is rotatably connected with the ultrasonic probe.
[0010] According to the uterine cavity ultrasonic diagnosis device provided by the application, the handle comprises: The two shell covers are oppositely arranged on the two sides of the shell and are rotatably arranged on the support sleeves on the two sides of the shell in a one-to-one correspondence, and the two ends of the rotating shaft are coaxially arranged in the support sleeves on the two sides of the shell; The connecting handle is connected between the two shell covers, and the connecting handle is used for receiving the manual operation of an operator; The angle limiting structure is arranged between the shell cover and the rotating shaft, and the at least two locking positions are distributed along the circumference of the support sleeve.
[0011] According to the uterine cavity ultrasonic diagnosis device provided by the application, the angle limiting structure comprises a “T” shaped piece and a compression spring; The “T” shaped piece comprises a first rod body and a second rod body, the first end of the second rod body is connected with the middle part of the first rod body; The side wall of the rotating shaft is provided with a positioning groove, the second end of the second rod body is arranged in the positioning groove, the compression spring is arranged outside the second rod body, and abuts between the first rod body and the groove bottom of the positioning groove; The locking position is a locking groove formed in the inner side wall of the support sleeve, the shell cover is provided with a guide hole extending in the radial direction, the first end of the first rod body is used for locking cooperation with the locking groove, and the second end of the first rod body is inserted into the guide hole.
[0012] According to the uterine cavity ultrasonic diagnosis device provided by the application, the end of the rotating shaft is provided with a mounting port, the mounting port extends from the end of the rotating shaft to the positioning groove along the axial direction of the rotating shaft, and the mounting port is communicated with the positioning groove. The opening width of the mounting port is matched with the diameter of the second rod body and is smaller than the outer diameter of the compression spring.
[0013] According to the uterine cavity ultrasonic diagnosis device provided by the application, the shell cover comprises: The main cover body is rotatably covered outside the support sleeve and connected with the connecting handle, and the guide hole is arranged on the side of the main cover body away from the support sleeve. The cover is detachably arranged on the side of the main cover body away from the support sleeve. The end of the rotating shaft is arranged in the guide hole, and the mounting port is provided with a limiting head, and the limiting head is limited on the side of the main cover body away from the support sleeve.
[0014] According to the uterine cavity ultrasonic diagnosis device provided by the application, the shell cover comprises: And / or, the shell is provided with a shaft hole matched with the rotating shaft, and the sealing ring is arranged between the peripheral wall of the rotating shaft and the hole wall of the shaft hole.
[0015] According to the uterine cavity ultrasonic diagnosis device provided by the application, the detection assembly comprises: The first end of the inductive sheet is connected with the rotating shaft. The circuit board is provided with at least two detection elements, and the at least two detection elements are arranged in the circumferential direction of the rotating shaft. In the case that the angle limiting structure is locked with one of the locking positions, the second end of the inductive sheet is arranged opposite to the detection element corresponding to the locking position, and the detection element is used for outputting angle information under the triggering of the inductive sheet.
[0016] According to the uterine cavity ultrasonic diagnosis device provided by the application, the insertion part further comprises: The flexible protective sleeve is sleeved between the ultrasonic probe and the guide rod and is sealingly connected with the ultrasonic probe and the guide rod, respectively.
[0017] According to the uterine cavity ultrasonic diagnosis device provided by the application, the insertion part further comprises: An instrument channel is arranged side by side with the guide rod, and a vapor ablation needle is arranged in the instrument channel. In the case where the ultrasonic probe and the guide rod are arranged horizontally opposite to each other, the maximum outer diameter of the insertion part is not more than 8.6 mm.
[0018] The uterine cavity ultrasonic diagnosis device provided by the application is convenient for realizing the thin-diameter design of the insertion part by arranging the insertion part, the transmission assembly and the operation part based on the handle, and by arranging the insertion part to comprise the guide rod and the ultrasonic probe rotationally connected with the guide rod. When the ultrasonic probe and the guide rod are arranged horizontally opposite to each other, the insertion part can be conveniently controlled to enter the uterine cavity through the cervical canal for ultrasonic detection, so as to reduce the pain when entering the patient's body, make up for the deficiency of the traditional ultrasonic diagnosis, and in the ultrasonic detection process, the shaft can be rotated relative to the shell by the rocking handle, and then the ultrasonic probe can be deflected relative to the guide rod by the shaft through the transmission assembly. Since the angle limiting structure is arranged between the rocking handle and the shaft, and the angle limiting structure can be selectively locked with any locking position on the shell, under the control of the angle limiting structure, the ultrasonic probe can reach different deflection angles relative to the guide rod. This design not only improves the diagnosis range of the ultrasonic probe in the uterine cavity, but also prevents the detection angle of the ultrasonic probe from deviating after the diagnosis is confirmed based on the angle locking function of the angle limiting structure. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.
[0020] Figure 1 is a structural schematic diagram of the uterine cavity ultrasonic diagnosis device provided by the first embodiment of the application.
[0021] Figure 2 is an exploded structural schematic diagram of the uterine cavity ultrasonic diagnosis device provided by the application. Figure 1
[0022] Figure 3 is a partial enlarged view of K in the uterine cavity ultrasonic diagnosis device provided by the application. Figure 2
[0023] Figure 4 is a sectional structural schematic diagram of the uterine cavity ultrasonic diagnosis device provided by the application. Figure 1
[0024] Figure 5 is a structure schematic view of the operation part provided relative to the shell according to the present application. Figure 1 is a sectional structure schematic view two of the present application.
[0025] Figure 6 is a structure schematic view one of the operation part provided relative to the shell according to the present application.
[0026] Figure 7 is a structure schematic view two of the operation part provided relative to the shell according to the present application.
[0027] Figure 8 is a structure schematic view of the rotation shaft and the angle limiting structure cooperating according to the present application.
[0028] Figure 9 is a structure schematic view of the uterine cavity ultrasonic diagnostic device according to the second embodiment of the present application.
[0029] Figure 10 is an explosion structure schematic view of the present application. Figure 9
[0030] Figure 11 is a structure schematic view one of the ultrasonic probe according to the present application.
[0031] Figure 12 is a structure schematic view two of the ultrasonic probe according to the present application.
[0032] Figure 13 is a structure schematic view three of the ultrasonic probe according to the present application.
[0033] Figure 14 is a structure schematic view of the guide rod according to the present application.
[0034] Figure 15 is a structure schematic view of the angle switching control of the ultrasonic probe of the uterine cavity ultrasonic diagnostic device according to the first embodiment of the present application.
[0035] Figure 16 is a structure schematic view of the uterine cavity ultrasonic diagnostic device according to the first embodiment of the present application entering the uterus through the cervical canal of the patient to perform diagnosis.
[0036] Figure 17 is a structure schematic view of the angle switching control of the ultrasonic probe of the uterine cavity ultrasonic diagnostic device according to the second embodiment of the present application.
[0037] Figure 18 is a structure schematic view of the uterine cavity ultrasonic diagnostic device according to the second embodiment of the present application entering the uterus through the cervical canal of the patient to perform diagnosis.
[0038] Reference signs: 1. Handle; 11. Housing; 12. Rotating shaft; 121. Positioning groove; 122. Mounting port; 101. Support sleeve; 102. Limiting head; 103. Fixing base; 2. Insertion section; 21. Ultrasonic probe; 2101. Lead wire; 211. Housing; 21101. Outlet hole; 2111. First hinge section; 2112. Second hinge section; 2113. Stop section; 212. Probe body; 22. Guide rod; 221. Third hinge section; 222. Slide groove; 223. Wiring channel; 224. Fixing hole; 23. Flexible protective sleeve; 24. Instrument channel; 3. Transmission components; 31. Swing arm; 32. Tie rod; 321. Bending section; 322. Straight section; 4. Operating part; 41. Crank handle; 411. Housing; 4110. Guide hole; 4111. Main cover; 4112. Cover; 412. Connecting handle; 42. Angle limiting structure; 421. "T" shaped piece; 422. Compression spring; 4211. First rod; 4212. Second rod; 5. Detection components; 51. Sensor sheet; 52. Circuit board; 6. Buffer ring; 7. Sealing ring; 10. Vagina; 20. Cervix; 30. Endometrium; 40. Ovary; 50. Fallopian tube; 100. Fibroid. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0040] The following is combined with Figures 1-18 The invention provides a detailed description of the intrauterine ultrasound diagnostic device through specific embodiments and application scenarios.
[0041] like Figure 1 , Figure 2 , Figure 4 , Figure 9 and Figure 10 As shown, the present invention provides a hysteroscopic ultrasound diagnostic device, comprising: a handle 1, an insertion part 2, a transmission assembly 3, and an operation part 4; The handle 1 comprises a shell 11 and a rotating shaft 12 rotatably arranged in the shell 11; the insertion part 2 comprises an ultrasonic probe 21 and a guide rod 22, the ultrasonic probe 21 is rotatably arranged at the end of the guide rod 22, and the leading end of the guide rod 22 is connected with the shell 11; at least part of the transmission assembly 3 is arranged along the extension direction of the guide rod 22, one end of the transmission assembly 3 is connected with the rotating shaft 12, and the other end is connected with the ultrasonic probe 21; the operation part 4 comprises a handle 41 and an angle limiting structure 42, the handle 41 is rotatably arranged in the shell 11 along the rotation axis 12 of the rotating shaft 12, and is connected with the rotating shaft 12 through the angle limiting structure 42; The shell 11 is provided with at least two locking positions along the circumference of the rotating shaft 12, and the angle limiting structure 42 can be selectively locked with any locking position during the rotation of the handle 41 controlling the rotating shaft 12. Exemplarily, as shown in Figure 3 The locking positions can be provided with three, which are sequentially marked as W1, W2 and W3, and W1, W2 and W3 are sequentially arranged along the circumference of the rotating shaft 12, W1 represents that the deflection angle of the ultrasonic probe 21 relative to the guide rod 22 is 0°, at this time the ultrasonic probe 21 and the guide rod 22 are horizontally arranged relative to each other, W2 represents that the deflection angle of the ultrasonic probe 21 relative to the guide rod 22 is 45°, and W3 represents that the deflection angle of the ultrasonic probe 21 relative to the guide rod 22 is 60°.
[0042] It can be understood that the shell 11 of the handle 1 forms an accommodation cavity, the rotating shaft 12 is rotatably arranged in the accommodation cavity, and at least part of the transmission assembly 3 is arranged in the accommodation cavity, which can effectively prevent the external environment from affecting the normal transmission design of the transmission assembly 3.
[0043] As shown in Figure 11 The ultrasonic probe 21 has a circular arc detection surface, the imaging angle α of the ultrasonic probe 21 based on the circular arc detection surface can reach 0°-114°, the center frequency of the ultrasonic probe 21 is 6.5-7MHz, the rotatable radius R reaches 20.5mm, and the deflection range of the ultrasonic probe 21 relative to the guide rod 22 is 0°-60°, which greatly ensures the observation range of the ultrasonic probe 21 in the uterine cavity, and is conducive to improving the diagnosis accuracy; wherein the ultrasonic probe 21 is provided with a lead-out wire 2101 arranged along the guide rod 22.
[0044] As shown in Figure 12 and Figure 13 The ultrasonic probe 21 comprises an outer shell 211 and a probe body 212, the outer shell 211 covers the probe body 212, the circular arc detection surface on the probe body 212 is exposed to the outer shell 211, one end of the outer shell 211 towards the guide rod 22 is provided with a first hinge part 2111, a second hinge part 2112, a stop part 2113 and a wire hole 21101, and the first hinge part 2111 and the second hinge part 2112 are arranged in a staggered manner.
[0045] As Figure 14 shown, the guide rod 22 is provided with a third hinge part 221 at one end of the ultrasonic probe 21, the third hinge part 221 and the first hinge part 2111 are hinged by a pin shaft, and the second hinge part 2112 is configured to be hinged by a pin shaft at one end of the transmission assembly 3 close to the ultrasonic probe 21.
[0046] At the same time, the guide rod 22 is provided with a wire channel 223, the inner wall of the wire channel 223 is provided with a sliding groove 222, and the sliding groove 222 and the wire channel 223 are both arranged in the length direction of the guide rod 22; the lead-out wire 2101 of the ultrasonic probe 21 is arranged along the wire channel 223 after being led out from the wire hole 21101, and extends to the inside of the shell 11 of the handle 1, and is electrically connected with the control board in the shell 11, the lead-out wire 2101 is used for providing working power for the ultrasonic probe 21, and transmitting the video signal collected by the ultrasonic probe 21; at least part of the transmission assembly 3 is arranged along the extension direction of the sliding groove 222, so as to realize the rotary connection with the ultrasonic probe 21; wherein the transmission assembly 3 can adopt a steel wire rope or a connecting rod, which is not limited.
[0047] Further, as Figure 3 and Figure 14 shown, the shell 11 is further provided with a fixing seat 103, the leading end of the guide rod 22 is provided with at least one fixing hole 224, the fixing seat 103 is provided with a through hole corresponding to the fixing hole 224, and after the guide rod 22 and the fixing seat 103 are fastened by a locking piece (such as a screw) arranged in the through hole and the fixing hole 224, the fixing seat 103 is fixed in the shell 11, so as to realize the installation of the guide rod 22.
[0048] As Figure 15 and Figure 16 shown, Figure 15 is a structure schematic diagram of angle switching control of the ultrasonic probe 21 of the uterine cavity ultrasonic diagnostic device provided by the first embodiment of the application, the insertion part 2 of the uterine cavity ultrasonic diagnostic device shown in the embodiment is only provided with the ultrasonic probe 21 and the guide rod 22, and does not provide the instrument channel 24. Figure 16 is a structure schematic diagram of the uterine cavity ultrasonic diagnostic device provided by the first embodiment of the application entering the uterus through the patient's cervix 20 for diagnosis. Figure 16 The structure of the uterus is shown, the vagina 10 is communicated with the uterine cavity of the uterus through the cervix 20, and the two sides of the uterine cavity of the uterus are both ovary 40, and each ovary 40 is communicated with the uterine cavity of the uterus through the oviduct 50.
[0049] In practical application, the operator can hold the handle 1 to control the insertion part 2 to enter into the uterine cavity through the vagina 10 and the cervix 20 in sequence, and ensure that the arc-shaped detection surface of the ultrasonic probe 21 faces the endometrium 30, so as to detect whether there is a lesion in the submucosa of the endometrium 30, for example, the lesion can be Figure 16 and Figure 18 myoma 100 as shown.
[0050] Since the insertion part 2 is only composed of the ultrasonic probe 21 and the guide rod 22, the thin-diameter design of the insertion part 2 can be realized in the design, for example, in the case that the ultrasonic probe 21 and the guide rod 22 are horizontally arranged opposite to each other, the maximum outer diameter of the insertion part 2 is not more than 8.6 mm, and such a design can reduce the pain when the insertion part 2 enters into the uterine cavity through the natural cavity, and make up for the deficiency of the traditional ultrasonic diagnosis.
[0051] The operator can control the rocking handle 41 according to the operation mode shown in Figure 15 , drive the rotating shaft 12 to rotate relative to the housing 11, and then drive the ultrasonic probe 21 to deflect relative to the guide rod 22 through the transmission assembly 3; since the angle limiting structure 42 is arranged between the rocking handle 41 and the rotating shaft 12, and the angle limiting structure 42 can be selectively locked with any locking position on the housing 11, under the control of the angle limiting structure 42, the ultrasonic probe 21 can reach different deflection angles relative to the guide rod 22, and such a design not only improves the diagnosis range of the ultrasonic probe 21 in the uterine cavity, but also prevents the detection angle of the ultrasonic probe 21 from deviating after confirming the diagnosis based on the angle locking function of the angle limiting structure 42.
[0052] As shown in Figure 17 and Figure 18 , the Figure 17 is a structure diagram of the angle switching control of the ultrasonic probe 21 of the uterine cavity ultrasonic diagnosis device provided in the second embodiment of the present application, Figure 18 is a structure diagram of the uterine cavity ultrasonic diagnosis device provided in the second embodiment of the present application for treating the lesion position in the uterus through the cervix 20 of the patient. In this case, the insertion part 2 further comprises: an instrument channel 24, the instrument channel 24 and the guide rod 22 are arranged side by side, and a vapor ablation needle is arranged in the instrument channel 24; wherein, in the case that the ultrasonic probe 21 and the guide rod 22 are horizontally arranged opposite to each other, the maximum outer diameter of the insertion part 2 is not more than 8.6 mm, for example, the maximum outer diameter of the insertion part 2 is 5-8 mm.
[0053] In order to realize the thinning of the insertion part 2, the outer side wall of the guide rod 22 can be provided with a clamping groove extending along the axial direction of the guide rod 22, and at least part of the instrument channel 24 is clamped in the clamping groove, which makes the overall shape of the instrument channel 24 and the guide rod 22 close to a circle, and the maximum outer diameter of the insertion part 2 is not more than 8.6mm, achieving the thinning design of the insertion part 2.
[0054] As shown in Figure 18 After confirming the lesion position by using the ultrasonic probe 21, the operator can control the steam ablation needle to extend out of the instrument channel 24 through the handle, and the high-temperature steam (for example, the temperature of the high-temperature steam is 103℃) output by the steam ablation needle can be used to perform steam ablation treatment on the lesion position.
[0055] In actual application, a liquid inlet channel can also be provided side by side on one side of the instrument channel 24, and the outlet end of the liquid inlet channel faces the ultrasonic probe 21. Considering that the surface of the ultrasonic probe 21 may be stuck with foreign matter during the process of entering the uterine cavity through the cervical route, the ultrasonic probe 21 can be flushed by using the physiological saline provided by the liquid inlet channel, so as to avoid that the surface of the ultrasonic probe 21 is blocked by foreign matter and affects the diagnosis result.
[0056] In some embodiments, as shown in Figure 3 and Figure 4 The transmission assembly 3 includes a swing arm 31 and a pull rod 32. The swing arm 31 is arranged on the rotating shaft 12 and can rotate with the rotating shaft 12. The pull rod 32 includes a curved section 321 and a straight section 322. The first end of the curved section 321 is rotationally connected to the end of the swing arm 31 away from the rotating shaft 12, and the second end of the curved section 321 is connected to the first end of the straight section 322. The straight section 322 is movably arranged in the guide rod 22, and the second end of the straight section 322 is rotationally connected to the ultrasonic probe 21.
[0057] It can be understood that by configuring the pull rod 32 as the curved section 321 and the straight section 322, it can be ensured that the swing arm 31 rotates smoothly with the rotating shaft 12, and the swing arm 31 applies a force to the end of the curved section 321 away from the straight section 322 to drive the straight section 322 of the pull rod 32 to perform extension and retraction movement relative to the guide rod 22 along the axial direction of the guide rod 22. The pull rod 32 can be a rigid rod body capable of slight deformation, such as a steel wire. In this way, the swing of the swing arm 31 and the linear movement of the pull rod 32 do not interfere with each other.
[0058] In actual application, under the control of the handle 41, the rotating shaft 12 can drive the insertion part 2 to switch between the first state and the second state through the transmission assembly 3; see Figure 9 and Figure 10, when the insertion part 2 is in the first state, the ultrasonic probe 21 and the guide rod 22 are horizontally arranged relative to each other, at this time, the stop portion 2113 of the ultrasonic probe 21 is in abutment with the port of the instrument channel 24 to prevent the steam ablation needle in the instrument channel 24 from extending out, and the curved section 321 of the pull rod 32 is in abutment with the fixed seat 103 in the shell 11 (see Figure 3 and Figure 4 ), which makes the pull rod 32 unable to swing the ultrasonic probe 21 relative to the guide rod 22 towards the side away from the handle 1; correspondingly, see Figure 17 and Figure 18 , when the insertion part 2 is in the second state, the ultrasonic probe 21 is arranged at an angle relative to the guide rod 22, at this time, the stop portion 2113 of the ultrasonic probe 21 is away from the port of the instrument channel 24, and the steam ablation needle in the instrument channel 24 can extend out to perform steam ablation treatment on the lesion site.
[0059] In some embodiments, as shown in Figure 3 and Figure 5 , the handle 41 comprises a connecting handle 412 and two casings 411; the two casings 411 are arranged opposite to each other on the two sides of the shell 11 and are correspondingly rotatably covered on the support sleeves 101 on the two sides of the shell 11, and the two ends of the rotating shaft 12 are coaxially inserted into the support sleeves 101 on the two sides of the shell 11; the connecting handle 412 is connected between the two casings 411, and the connecting handle 412 is used for receiving manual operation of an operator; wherein the angle limiting structure 42 is arranged between the casing 411 and the rotating shaft 12, and the at least two locking positions are distributed along the circumference of the support sleeve 101.
[0060] It can be understood that, by configuring the handle 41 as the connecting handle 412 and the two casings 411, each casing 411 is connected through the angle limiting structure 42 and the rotating shaft 12, and this design ensures stable rotation of the handle 41 relative to the shell 11 based on the one-to-one rotation matching of the two casings 411 on the handle 41 and the two support sleeves 101 on the shell 11, and facilitates stable control of the rotating shaft 12 relative to the shell 11 by the operator through the connecting handle 412.
[0061] At the same time, based on the rotation design between the casing 411 of the handle 41 and the support sleeve 101 of the shell 11, it is also convenient to arrange the locking positions on the support sleeve 101 which are adapted to the angle limiting structure 42, so as to limit the rotating shaft 12 at a desired rotation angle of the user based on the locking matching between the angle limiting structure 42 and the locking positions when the rotating shaft 12 is controlled to rotate through the handle 41, thereby achieving the purpose of locking the yawing angle of the ultrasonic probe 21 relative to the guide rod 22.
[0062] In some embodiments, as shown in Figure 5 , Figure 6 andFigure 7 As shown, the angle limiting structure 42 comprises a "T" shaped piece 421 and a compression spring 422; The "T" shaped piece 421 comprises a first rod body 4211 and a second rod body 4212, the first end of the second rod body 4212 is connected with the middle part of the first rod body 4211; the side wall of the rotating shaft 12 is provided with a positioning groove 121, the second end of the second rod body 4212 is inserted into the positioning groove 121, the compression spring 422 is sleeved outside the second rod body 4212 and abuts between the first rod body 4211 and the groove bottom of the positioning groove 121; The locking position is a locking groove formed in the inner side wall of the support sleeve 101, the shell 411 is provided with a guide hole 4110 extending in the radial direction, the first end of the first rod body 4211 is used for locking cooperation with the locking groove, and the second end of the first rod body 4211 is inserted into the guide hole 4110.
[0063] It can be understood that the cross-sectional shape of the first end of the first rod body 4211 can be triangular, and the locking groove can be a triangular groove, which facilitates the locking cooperation between the first end of the first rod body 4211 and the locking groove.
[0064] When the angle limiting structure 42 and one of the locking positions are locked, the first end of the first rod body 4211 moves into the locking groove, and under the elastic force of the compression spring 422, the first end of the first rod body 4211 cannot be separated from the locking groove, and this locking design is equivalent to that the handle 41 is connected as a whole with the shell 11 through the angle limiting structure 42, so that the operator is difficult to rotate the handle 41.
[0065] At the same time, the cross-sectional shape of the second end of the first rod body 4211 can be rectangular, and the guide hole 4110 can be a rectangular hole matched with the second end of the first rod body 4211, under the elastic force of the compression spring 422, the second end of the first rod body 4211 abuts with the first end of the guide hole 4110 when the operator does not press the handle 41, and the second end of the first rod body 4211 moves along the extension direction of the guide hole 4110 towards the second end of the guide hole 4110 when the operator presses the handle 41.
[0066] When the operator needs to adjust the deflection angle of the ultrasonic probe 21 relative to the guide rod 22, the handle 41 can be pressed first, the shell 411 of the handle 41 applies pressure to the second end of the first rod body 4211, so that the first end of the first rod body 4211 is separated from the locking groove, and the first rod body 4211 applies pressure to the compression spring 422, so that the compression spring 422 is in a compressed state, at this time, the operator can continue to control the rotation of the handle 41 relative to the shell 11 until the first end of the first rod body 4211 moves into the locking groove of another locking position under the elastic force of the compression spring 422.
[0067] In some embodiments, as shown in Figure 7 and Figure 8 The end of the rotating shaft 12 is provided with a mounting port 122 extending from the end of the rotating shaft 12 towards the positioning groove 121 along the axial direction of the rotating shaft 12 to communicate with the positioning groove 121; wherein the opening width of the mounting port 122 is adapted to the diameter of the second rod body 4212 and is smaller than the outer diameter of the compression spring 422.
[0068] It can be understood that, by providing the mounting port 122 communicating with the positioning groove 121, the compression spring 422 can be first sleeved outside the second rod body 4212 of the "T" shaped piece 421 to control the compression spring 422 in the compressed state, and then the second rod body 4212 of the "T" shaped piece 421 is assembled into the positioning groove 121 from the end of the rotating shaft 12 through the mounting port 122, at this time, without the restriction of the outer wall of the rotating shaft 12, the compression spring 422 returns to the elongated state and abuts between the first rod body 4211 and the groove bottom of the positioning groove 121, thereby conveniently achieving the installation of the "T" shaped piece 421 and the compression spring 422.
[0069] In some embodiments, as shown in Figure 3 and Figure 6 The shell cover 411 comprises a main cover body 4111 and a cover 4112; the main cover body 4111 is rotatably covered on the support sleeve 101 and is connected with the connecting handle 412, and the guide hole 4110 is arranged on the side of the main cover body 4111 away from the support sleeve 101; the cover 4112 is detachably arranged on the side of the main cover body 4111 away from the support sleeve 101; wherein the end of the rotating shaft 12 is arranged in the guide hole 4110, and the limiting head 102 is arranged at the mounting port 122 and is limited on the side of the main cover body 4111 away from the support sleeve 101.
[0070] It can be understood that, by arranging the shell cover 411 as the main cover body 4111 and the cover 4112, the guide arrangement of the second end of the first rod body 4211 can be realized based on the guide hole 4110 on the main cover body 4111. By detachably arranging the cover 4112 on the side of the main cover body 4111 away from the support sleeve 101, this design not only ensures the aesthetics of the entire shell cover 411, but also facilitates the installation of the limiting head 102.
[0071] At the same time, by arranging the limiting head 102 at the end of the rotating shaft 12 and limiting the limiting head 102 on the side of the main cover body 4111 away from the support sleeve 101, the shell cover 411 can be prevented from moving towards the two sides of the shell body 11 in the direction away from the shell body 11 when the operator presses the rocker handle 41.
[0072] The mounting hole 122 can be a threaded interface, and the limiting head 102 can be a screw. The shank of the screw is threadedly connected with the threaded interface, and the head of the screw is located in the gap space between the main cover body 4111 and the cover 4112, and is limited on the side of the main cover body 4111 away from the support sleeve 101.
[0073] In some embodiments, as shown in Figure 5 The uterine cavity ultrasonic diagnostic device further comprises a buffer ring 6, which is embedded between the peripheral wall of the support sleeve 101 and the inner side wall of the shell cover 411.
[0074] It can be understood that the hardness of the buffer ring 6 is between 30-40. When the operator presses the handle 41, the part of the buffer ring 6 pressed between the support sleeve 101 and the shell cover 411 is compressed. When the operator releases the handle 41, the part of the buffer ring 6 pressed between the support sleeve 101 and the shell cover 411 rebounds. This design not only facilitates the pressing operation of the handle 41 by the operator, but also ensures that the shell cover 411 of the handle 41 and the support sleeve 101 of the shell body 11 remain stable and reliable in rotation connection.
[0075] In some embodiments, as shown in Figure 5 The uterine cavity ultrasonic diagnostic device further comprises a sealing ring 7. The shell body 11 is provided with a shaft hole matched with the rotating shaft 12, and the sealing ring 7 is embedded between the peripheral wall of the rotating shaft 12 and the hole wall of the shaft hole.
[0076] It can be understood that by providing the sealing ring 7, the rotation of the rotating shaft 12 relative to the shell body 11 can be ensured to be stable and reliable, and at the same time, external liquid can be prevented from entering the shell body 11 from the rotating connection between the rotating shaft 12 and the shell body 11.
[0077] In some embodiments, as shown in Figure 4 and Figure 8 The uterine cavity ultrasonic diagnostic device further comprises a detection assembly 5, which comprises an inductive sheet 51 and a circuit board 52. The first end of the inductive sheet 51 is connected with the rotating shaft 12, and the circuit board 52 is provided with at least two detection elements arranged along the circumference of the rotating shaft 12. In the case where the angle limiting structure 42 is locked in one of the locking positions, the second end of the inductive sheet 51 is arranged opposite to the detection element corresponding to the locking position, and the detection element is used to output angle information under the triggering of the inductive sheet 51.
[0078] It can be understood that the rotating shaft 12 will swing the inductive sheet 51 when rotating, so that the second end of the inductive sheet 51 approaches or moves away from the detection element on the circuit board 52. The detection element can be a proximity switch or an electromagnet, which is not limited.
[0079] When the angle limiting structure 42 is locked in one of the locking positions, for example, when the first end of the first rod 4211 is moved into the locking groove corresponding to one of the locking positions, the second end of the induction sheet 51 is just close to the detection element corresponding to the locking position, and the detection element is triggered by the second end of the induction sheet 51 to generate an induction information, which represents the angle information of the rotation of the rotation shaft 12.
[0080] Correspondingly, when the angle limiting structure 42 is not locked in any of the locking positions, the second end of the induction sheet 51 is away from the detection element, and the detection element cannot be triggered by the second end of the induction sheet 51 to generate an induction information.
[0081] In actual application, when three locking positions are arranged on the shell 11, three detection elements can be arranged on the circuit board 52, which are used to accurately detect the deflection angle of the ultrasonic probe 21 when the angle limiting structure 42 is locked in the locking positions.
[0082] In some embodiments, as shown in Figure 1 and Figure 4 , the insertion part 2 further comprises a flexible protective sleeve 23, which is sleeved between the ultrasonic probe 21 and the guide rod 22 and is sealingly connected with the ultrasonic probe 21 and the guide rod 22, respectively.
[0083] It can be understood that the flexible protective sleeve 23 is used to protect the bending part between the ultrasonic probe 21 and the guide rod 22, so as to avoid external liquid from entering the ultrasonic probe 21 or the guide rod 22; wherein the two ends of the flexible protective sleeve 23 can be sealingly connected with the ultrasonic probe 21 and the guide rod 22 by using sealing glue.
[0084] Further, as shown in Figure 9 and Figure 10 , when the insertion part 2 is further provided with an instrument channel 24, the instrument channel 24 and the guide rod 22 are arranged side by side, the first end of the instrument channel 24 is sleeved at the tail end of the ultrasonic probe 21 and is sealingly connected with the ultrasonic probe 21, and the second end of the instrument channel 24 is sleeved at the end of the instrument channel 24 and the guide rod 22 away from the handle 1 and is sealingly connected with the instrument channel 24 and the guide rod 22.
[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A hysteroscopic ultrasound diagnostic device, characterized in that, include: A handle, comprising a housing and a pivot, the pivot being rotatably disposed on the housing; The insertion part includes an ultrasonic probe and a guide rod, wherein the ultrasonic probe is rotatably disposed at the end of the guide rod, and the beginning end of the guide rod is connected to the housing; A transmission assembly, at least a portion of which is arranged along the extension direction of the guide rod, wherein one end of the transmission assembly is connected to the rotating shaft and the other end is connected to the ultrasonic probe; The operating unit includes a crank and an angle limiting structure. The crank is rotatably disposed on the housing along the rotation axis of the rotating shaft and is connected to the rotating shaft via the angle limiting structure. The housing has at least two locking positions along the circumference of the rotating shaft. During the process of the crank controlling the rotation of the rotating shaft, the angle limiting structure can selectively lock and engage with either of the locking positions.
2. The intrauterine ultrasound diagnostic device according to claim 1, characterized in that, The transmission assembly includes: A swing arm, which is mounted on the rotating shaft and can rotate with the rotating shaft; The pull rod includes a curved section and a straight section. The first end of the curved section is rotatably connected to the end of the swing arm away from the rotating shaft. The second end of the curved section is connected to the first end of the straight section. The straight section is movably inserted into the guide rod. The second end of the straight section is rotatably connected to the ultrasound probe.
3. The intrauterine ultrasound diagnostic device according to claim 1, characterized in that, The crank includes: Two housings are disposed opposite to each other on both sides of the housing and are rotatably covered on the support sleeves on both sides of the housing. The two ends of the rotating shaft are coaxially inserted into the support sleeves on both sides of the housing. A connecting handle, which connects between the two housings, is used to receive manual operation by the operator; The angle limiting structure is disposed between the housing and the rotating shaft, and at least two locking positions are distributed circumferentially along the support sleeve.
4. The intrauterine ultrasound diagnostic device according to claim 3, characterized in that, The angle-limiting structure includes: a "T"-shaped component and a compression spring; The "T"-shaped component includes a first rod and a second rod, with the first end of the second rod connected to the middle part of the first rod. The side wall of the rotating shaft is provided with a positioning groove, the second end of the second rod is inserted into the positioning groove, and the compression spring is sleeved on the outside of the second rod and abuts against the bottom of the positioning groove between the first rod and the groove. The locking position is a locking groove formed on the inner side wall of the support sleeve. The housing is provided with a guide hole extending radially. The first end of the first rod is used to lock into the locking groove, and the second end of the first rod is inserted into the guide hole.
5. The intrauterine ultrasound diagnostic device according to claim 4, characterized in that, The end of the rotating shaft is provided with a mounting port, which extends along the axial direction of the rotating shaft from the end of the rotating shaft toward the positioning groove to communicate with the positioning groove; The opening width of the mounting port is adapted to the diameter of the second rod and is smaller than the outer diameter of the compression spring.
6. The intrauterine ultrasound diagnostic device according to claim 5, characterized in that, The enclosure includes: The main cover is rotatably mounted on the support sleeve and connected to the connecting handle. The guide hole is located on the side of the main cover opposite to the support sleeve. A cover, which is detachably disposed on the side of the main cover opposite to the support sleeve; The end of the rotating shaft passes through the guide hole, and a limiting head is installed at the mounting opening. The limiting head is located on the side of the main cover away from the support sleeve.
7. The intrauterine ultrasound diagnostic device according to any one of claims 3 to 6, characterized in that, Also includes: A buffer ring is fitted between the peripheral wall of the support sleeve and the inner sidewall of the housing; And / or, it also includes a sealing ring, wherein the housing has a shaft hole adapted to the rotating shaft, and the sealing ring is fitted between the peripheral wall of the rotating shaft and the wall of the shaft hole.
8. The intrauterine ultrasound diagnostic device according to any one of claims 1 to 6, characterized in that, It also includes a detection component, which includes: A sensing element, the first end of which is connected to the rotating shaft; A circuit board having at least two detection elements arranged circumferentially along the axis of rotation; In the case where the angle limiting structure is locked with one of the locking positions, the second end of the sensing sheet is disposed opposite to the detection element corresponding to the locking position, the detection element being used to output angle information upon triggering by the sensing sheet.
9. The intrauterine ultrasound diagnostic device according to any one of claims 1 to 6, characterized in that, The insertion part further includes: A flexible protective sleeve is fitted between the ultrasonic probe and the guide rod, and is sealed to both the ultrasonic probe and the guide rod respectively.
10. The intrauterine ultrasound diagnostic device according to any one of claims 1 to 6, characterized in that, The insertion part further includes: An instrument channel is provided, and the instrument channel and the guide rod are arranged side by side. A steam ablation needle is provided in the instrument channel. Where the ultrasonic probe and the guide rod are arranged horizontally opposite each other, the maximum outer diameter of the insertion part does not exceed 8.6 mm.