Soft light doppler ultrasound probe and use thereof

Abstract

The present invention relates to the technical field of medical instruments, and specifically relates to a soft light Doppler ultrasound probe, and a use thereof. The probe comprises a sleeve and a handle, an ultrasonic transducer being provided on an outer wall of the sleeve, and the sleeve being composed of a light shielding member and a light guide member. The light guide member has a closed end and an open end of a tubular structure, an operation window penetrating the side wall of the sleeve being provided near the closed end of the light guide member, and the light guide member being fixedly connected to the light shielding member by means of the open end. The light shielding member comprises a tubular distal end facing the light guide member, and an annular proximal end distant from the light guide member, multiple light source mounting cavities being provided on the tubular distal end, light sources being provided in the light source mounting cavities, an interface being provided on the annular proximal end of the light shielding member, and the handle being detachably connected to the sleeve by means of the interface. A power supply unit is provided inside of the handle. In the present invention, the light source is ingeniously disposed in an overlapping portion formed by connecting the light shielding member and the light guide member, so that light is refracted by the light shielding member, and soft light is provided inside of the sleeve, thereby avoiding shining in the eyes.

Description

A soft light Doppler ultrasound probe and its application TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a soft light Doppler ultrasound probe and its application. BACKGROUND

[0002] Hemorrhoids are a common anorectal disease. Traditional diagnosis methods mainly rely on the experience and direct observation of doctors, which limits the early detection and treatment of hemorrhoids to some extent. With the development of medical technology, ultrasound detection technology has been widely used in the field of medical diagnosis, but its application in the field of anorectal diseases, such as hemorrhoid detection and treatment, is still in its infancy. In the prior art, a Doppler probe can be used for blood flow signal detection, for example, the Doppler probe disclosed in Chinese patent CN103815941B can diagnose the position of hemorrhoidal arteries by detecting blood flow signals, but it needs to be connected with an external device to realize power supply for the ultrasound transducer in the probe, and the wiring is very complex, which may cause potential electrical safety risks during disinfection, sterilization and use. In addition, the existing probe technology does not have a specific lighting system, which makes the inside of the sleeve not clear when using the traditional probe, especially for hemorrhoids with obvious three and four degrees of prolapse. Due to severe prolapse, the field of view is easily blocked during ligation operation, and the needle insertion position and depth cannot be well controlled, which leads to inaccurate control of hemorrhoidal artery ligation and hemorrhoidal body suspension fixation operation, affecting the accuracy and safety of surgical operation. SUMMARY

[0003] To solve the above technical problems, the present application provides a soft light Doppler ultrasound probe which can accurately detect the position of hemorrhoidal nucleus and its corresponding hemorrhoidal artery in the anorectum, and perform hemorrhoidal artery ligation surgery through a designed operation window. At the same time, a lighting system is provided to ensure that the light inside the probe sleeve is soft, ensuring clear illumination inside the sleeve while avoiding affecting the operator's vision.

[0004] Specifically, the first aspect of the present application provides a soft light Doppler ultrasound detector, comprising a sleeve and a handle, the sleeve is provided with an ultrasonic transducer and a surgical operation window on the outer wall of the sleeve, the sleeve comprises a light shielding member with low transparency and a light guide member with high transparency, the transparency of the light shielding member is lower than that of the light guide member; the light guide member has an open end, the light guide member is fixedly connected with the light shielding member through the open end; the light shielding member comprises a tubular distal end facing the direction of the light guide member and an annular proximal end away from the direction of the light guide member, a plurality of light source mounting cavities are arranged on the tubular distal end, and a light source is arranged in each light source mounting cavity; the light emitted by the light source is refracted by the light shielding member (the refractive treatment includes but is not limited to refraction, reflection, scattering, direct shooting and other operations of the light) and then transmitted through the light guide member to illuminate the inside of the sleeve; an interface for mounting the handle is arranged on the annular proximal end of the light shielding member, and the handle is detachably connected with the sleeve through the interface; a power supply unit is arranged in the handle, and the ultrasonic transducer and the light source are powered by the power supply unit in the handle.

[0005] As a preferred technical solution of the present application, the sleeve is a double sleeve, the double sleeve comprises an inner sleeve and an outer sleeve, the inner sleeve is movably and / or rotatably arranged in the cavity of the outer sleeve; the inner sleeve is composed of the light shielding member with low transparency and the light guide member with high transparency; wherein the light guide member further comprises another end opposite to the direction of the open end, the other end is open-shaped, and an inner sleeve operation window is arranged near the other end; an outer sleeve operation window is arranged on the outer sleeve, and the outer sleeve operation window and the inner sleeve operation window can be moved or rotated so that the outer sleeve operation window and the inner sleeve operation window at least partially coincide with each other at at least one operation window position to form a hemorrhoidal body suspension fixing operation window.

[0006] As a preferred technical solution of the present application, the sleeve is a single sleeve, the single sleeve is composed of a light shielding member with low transparency and a light guide member with high transparency, the light guide member has a closed end and an open end with a tubular structure, and an operation window penetrating through the side wall of the sleeve is arranged at the closed end of the light guide member.

[0007] As a preferred technical solution of the present application, the fixed connection part of the light shielding member and the light guide member at least partially overlaps to form an overlapping part, and the light source mounting cavities are arranged in the overlapping part.

[0008] As a preferred technical solution of the present application, a wire embedding groove is arranged along the circumferential direction at the connection part of the tubular distal end and the annular proximal end of the light shielding member, and the wire embedding groove connects the plurality of light source mounting cavities.

[0009] As a preferred technical scheme of the present application, one end of the handle connected with the sleeve is an integrally formed closed structure, and the other end of the handle is fixedly sealed by a sealing member.

[0010] As a preferred technical scheme of the present application, the interface on the annular proximal end has a hollow structure with one end open, which matches a protruding structure at the integrally formed closed structure of the handle; the hollow structure of the interface is detachably connected with the handle through the protruding structure of the handle.

[0011] As a preferred technical scheme of the present application, a contact is arranged in the interface on the annular proximal end, and the ultrasonic transducer and the light source are connected with a power supply unit in the handle through the contact.

[0012] As a preferred technical scheme of the present application, one end of the integrally formed closed structure of the handle is provided with an elastic expansion member, a buckle is arranged on the elastic expansion member, a clamping groove matched with the buckle is arranged on the interface, and the interface is detachably connected with the handle through the clamping groove and the buckle.

[0013] As a preferred technical scheme of the present application, a shielding part matched with the light source mounting cavity is arranged on the open end of the light guide member, so as to fix the light source mounted in the light source mounting cavity.

[0014] As a preferred technical scheme of the present application, the handle has a hollow structure, a circuit board is arranged inside the handle, and the power supply unit is connected with the contact in the interface through pre-installed wires on the circuit board.

[0015] As a preferred technical scheme of the present application, the sealing member comprises a charging interface plate and a bottom cover arranged outside the charging interface plate.

[0016] As a preferred technical scheme of the present application, a groove extending in the axial direction of the sleeve is arranged on the outer wall of the sleeve, a first end of the groove extends to a proximal operation window on the light guide member, and a second end of the groove passes through the annular proximal end and contacts the contact in the interface.

[0017] As a preferred technical scheme of the present application, the ultrasonic transducer is arranged at the first end of the groove.

[0018] As a preferred technical scheme of the present application, a counting chip is arranged on the light shielding member, and the counting chip is connected with the power supply unit in the handle through the contact in the interface.

[0019] As a preferred technical scheme of the present application, the thickness of the sleeve is in the range of 1.2-3.0 mm; the longitudinal length (the length in the direction of the annular proximal end and the tubular distal end) of the light shielding member is not greater than 40 mm.

[0020] The second aspect of the present application provides the use of the soft light Doppler ultrasound probe as described above in the field of hemorrhoid surgical treatment, which includes hemorrhoid artery ligation and hemorrhoid body suture suspension fixation surgery.

[0021] The technical scheme provided by the present application has the following beneficial effects compared with the existing related products and schemes:

[0022] In the present application, the lighting system of the Doppler ultrasound probe is optimized and improved. The sleeve of the probe is set in a targeted manner, and the light source is cleverly arranged in the overlapping part formed by the connection of the light shielding member with low transparency and the light guide member with high transparency. The light is refracted and processed by the light shielding member, thereby providing soft light and clear illumination inside the sleeve, avoiding glare, and improving the safety of the operation. In addition, the hidden lighting system design greatly improves the operation space of the probe and expands the selection range of the needle holder, so that the operator can choose a shorter needle holder for corresponding surgical operation, thereby reducing the difficulty of surgical operation and improving the success rate of surgery. In addition, the power supply line connection mode of the ultrasonic transducer, light source and counting chip is further optimized and designed in the present application, so that it is directly connected with the power supply unit through the contacts in the interface and the pre-set wires on the handle, and is powered by the power supply unit in the handle, thereby reducing the possible defective rate of the ultrasonic probe in the production and processing process, and improving the production efficiency. In addition, through the above optimized line design, the electrical safety of the product is improved, and the electromagnetic interference of the product is further reduced, and the safety performance of the product is improved in all directions. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to further explain the structure and configuration of the soft light Doppler ultrasound probe in the present application, the corresponding drawings are provided. It should be pointed out that the drawings described in the present application are only individual examples selected from all the drawings, and the purpose is not as a limitation on the claims. All other corresponding maps obtained through the drawings provided in the present application should be considered within the scope of protection of the present application.

[0024] Figure 1 is a single sleeve design structure schematic diagram of the soft light Doppler ultrasound probe provided by the present application;

[0025] Figure 2 is a sleeve part structure schematic diagram of the soft light Doppler ultrasound probe provided by the present application;

[0026] Figure 3 is a handle part structure schematic diagram of the soft light Doppler ultrasound probe provided by the present application;

[0027] Fig. 4 is a schematic diagram of a double cannula design structure of the soft light Doppler ultrasound detector provided by the present application;

[0028] Fig. 5 is a schematic diagram of a double cannula design structure of the soft light Doppler ultrasound detector provided by the present application.

[0029] Wherein: 1-cannula, 01-light guide, 011-inner cannula, 101-ultrasound transducer, 102-groove, 103-shielding part, 104-operation window, 105-closed end, 106-open end, 107-overlapping part, 108-inner cannula operation window, 02-shading part, 201-light source mounting cavity, 202-interface, 203-copper contact, 204-buried wire groove, 205-counting chip, 206-clamping groove, 207-tubular distal end, 208-annular proximal end, 03-handle, 301-elastic extension, 302-protruding structure, 303-prepositioned copper wire, 304-charging interface plate, 305-bottom cover, 306-insertion sheet, 307-circuit board, 401-outer cannula, 402-outer cannula operation window. DETAILED DESCRIPTION

[0030] The present application will now be further described in detail with reference to the drawings. These drawings are simplified schematic diagrams and only schematically illustrate the basic structure of the present application, and thus only show the components related to the present application.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms such as "mounting", "fixing", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. In addition, the terms indicating a certain orientation or position relationship such as "interior", "exterior", "upper", "lower", "longitudinal" are intended to indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the scheme of the present application and simplifying the description, and thus cannot be understood as indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the present application. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, a soft light Doppler ultrasound detector is provided, which comprises a cannula and a handle, and an ultrasound transducer is arranged on the outer wall of the cannula. The effect of soft light processing is achieved by arranging a shading part and a light guide on the cannula. The cannula can be a single cannula or a double cannula.

[0033] Referring to FIGS. 1-2, when the sleeve is a single sleeve, it is composed of a light-shielding member with low transparency and a light-guiding member with high transparency, the transparency of the light-shielding member is lower than that of the light-guiding member; the light-guiding member has a closed end and an open end with a tubular structure, an operation window is arranged on the light-guiding member near the closed end for surgical operation (such as ligation surgery, etc.), the light-guiding member is fixedly connected with the light-shielding member through the open end, which can adopt various ways known to those skilled in the art including but not limited to welding, adhesive connection, two-material injection molding, etc.; the light-shielding member includes a tubular distal end facing the direction of the light-guiding member and an annular proximal end away from the direction of the light-guiding member, a plurality of light source mounting cavities are arranged on the tubular distal end, preferably the light source mounting cavities are open towards the direction of the light-guiding member; a light source is arranged in the light source mounting cavity, the selection of the light source in the present application is not specially limited, and various diodes, lamps and other light sources known to those skilled in the art can be used; the light emitted by the light source is refracted by the light-shielding member (the refraction includes but is not limited to refraction, reflection, scattering, direct reflection, etc.), and then transmitted by the light-guiding member to illuminate the inside of the sleeve; an interface for mounting a handle is arranged on the annular proximal end of the light-shielding member, the handle is detachably connected with the sleeve through the interface; a power supply unit is arranged in the handle, the ultrasonic transducer and the light source are powered by the power supply unit in the handle.

[0034] The sleeve in the scheme is composed of a light-shielding member and a light-guiding member; the light-shielding member is made of a material with low transparency, which is used for light shielding and light scattering of the light emitted by the light source, to ensure that the light in the sleeve is soft, reduce direct illumination of the light to the eye, and avoid glare to affect vision; the light-guiding member is made of a material with high transparency, which is used for transmitting the light emitted by the light source to provide illumination inside the sleeve. The light source mounting cavity in the scheme is arranged on the tubular distal end of the light-shielding member, and the light source is arranged therein, the light emitted by the light source is reflected by the light-shielding member and transmitted by the light-guiding member to illuminate the inside of the sleeve.

[0035] The specific material of the light shielding piece is not specially limited in the scheme, and materials capable of absorbing part of the light, or capable of performing certain degree of refraction, reflection and other operations on the light, promoting the light emitted by the light source to produce diffuse reflection, making the light more soft and uniform, and not producing strong shadows and highlights, such as black, gray, other dark plastic materials, and various porous materials known to those skilled in the art. Correspondingly, the material of the light guide piece is not specially limited in the present application, and materials with high light transmittance, which can assist in conducting the light treated by the light shielding piece to the inside of the sleeve and the closed end, such as transparent plastic (such as transparent PC material, transparent ABS material, etc.) and the like. The light transmittance of the light shielding piece in the present application is lower than that of the light guide piece. The term "light transmittance" is a physical quantity representing the ability of light to pass through a medium, which can be tested and determined according to the manner known to those skilled in the art. The light guide piece has a tubular structure, and the specific shape and size of the tubular structure are not specially limited in the present application. The tubular structure with uniform diameter in the circumferential direction can also be used, and the tubular structure with gradually changing diameter in the circumferential direction can also be used. The specific shape can be adjusted according to the manner known to those skilled in the art. The operation window in the scheme is arranged at the nearly closed end of the light guide piece, allowing the doctor to perform the hemorrhoidal artery ligation surgery through the window. The specific shape of the operation window is not specially limited in the present application, and can be designed according to actual needs.

[0036] In the scheme, the ultrasonic transducer is mounted on the outer wall of the sleeve, for emitting and receiving ultrasonic signals into the human anus and rectum, and obtaining blood flow signals by analyzing the reflected signals for detection and positioning of hemorrhoidal arteries. The handle in the scheme integrates a power supply unit inside, which provides stable power supply for the ultrasonic transducer and the light source.

[0037] The light shielding piece in the scheme includes a tubular distal end and an annular proximal end, wherein the tubular distal end is fixedly connected with the light guide piece, and the annular proximal end has a circular truncated cone interface structure (similar to a horn structure) with the inner diameter shrinking towards the tubular distal end. For details, please refer to FIG. 1. An interface is arranged on the annular proximal end for mounting the handle, wherein the interface is integrally formed with the annular proximal end, and the interface and the handle are detachably connected, facilitating cleaning and disinfection after use. The detachable connection mode includes but is not limited to buckle fixing connection, wherein the interface can be provided as a clamping groove, and a lock buckle is arranged on the handle. Correspondingly, the clamping groove can also be arranged on the handle, and the interface can be provided as a corresponding lock buckle.

[0038] In some preferred embodiments, the overlapping part is formed at least partially by the fixed connection between the light-shielding member and the light-guiding member, and the light source mounting cavity is arranged in the overlapping part. In this case, when the light-shielding member and the light-guiding member are fixedly connected, the tubular distal end can be at least partially covered by the light-guiding member, i.e., the tubular distal end is inside the light-guiding member, forming the overlapping part. The light source mounting cavity is arranged between the outer wall of the light-shielding member and the inner wall of the light-guiding member, so that the light emitted by the light source is reflected, refracted, etc. by the tubular distal end, thereby producing diffuse reflection.

[0039] In some preferred embodiments, a wire-embedding groove is arranged at the connection between the tubular distal end and the annular proximal end of the light-shielding member in the circumferential direction. The wire-embedding groove connects the plurality of light source mounting cavities. After the light sources are arranged in the light source mounting cavities, the light sources are connected in series or in parallel by wires one by one, and the wires are arranged in the groove and sealed. Then, after the light-shielding member and the light-guiding member are fixedly connected, the sealed wire-embedding groove can be covered in the overlapping part of the light-shielding member and the light-guiding member, effectively avoiding the problem of electric leakage of the wires that provide power for the light sources during use of the product, and significantly improving the safety performance of the product. Further preferably, a shielding part that matches the light source mounting cavities is arranged on the open end of the light-guiding member to fix the light sources arranged in the light source mounting cavities. The shape, size, and position of the shielding part match the light source mounting cavities, and when the light-shielding member and the light-guiding member are fixedly connected, the shielding part can cover each light source mounting cavity, further improving the fixing effect of the light sources. Further, a groove extending in the axial direction of the sleeve is arranged on the outer wall of the sleeve. The first end of the groove extends to the operation window on the light-guiding member, and the second end of the groove is in contact with the contact in the interface (in this application, the material of the contact is not specially limited, and any conductor material that can conduct electricity can be used, for example, including but not limited to copper contacts). The first end of the groove is the end toward the closed end of the light-guiding member, and the second end is the end opposite to the first end. Further preferably, the ultrasonic transducer is arranged at the first end of the groove, and the ultrasonic transducer is connected to the interface by wires. The wires are arranged in the groove and sealed. Further preferably, the groove arrangement part of the sleeve is increased in thickness, so that the depth of the groove is increased, and the wires are better fixed in the groove, further reducing the risk of electric leakage and improving the safety performance of the product. In order to maintain the operation space inside the sleeve, the thickness-increased area is mainly arranged on the outer wall of the sleeve.

[0040] In some preferred embodiments, the handle of the ultrasound probe of the present application is a hollow structure in which the required circuit board, power supply unit and other structures are arranged, and the end of the handle connected to the sleeve is a one-piece sealing structure, wherein the one-piece sealing structure includes various holes, grooves and other structures arranged after molding; the other end of the handle is sealed and fixed by a sealing member, effectively ensuring the waterproof and organic solvent penetration prevention effects of the product during storage, use and sterilization and disinfection; further, the sealing member includes a charging interface plate and a bottom cover arranged outside the charging interface plate, and the double-layer sealing effectively improves the sealing effect and ensures the electrical safety of the product. In some embodiments, an elastic expansion member is arranged on one end of the one-piece sealing structure of the handle, a buckle is arranged on the elastic expansion member, a clamping groove matched with the buckle is arranged on the interface, and the interface is detachably connected to the handle through the clamping groove and the buckle. Wherein, the buckle is fixed with the clamping groove under the action of the structure capable of elastic deformation such as spring, realizing the detachable connection between the handle and the sleeve.

[0041] In some embodiments of the present application, a circuit board is arranged inside the handle for processing the data collected by the probe. The circuit board is not specially limited in the present application, which can be a circuit board capable of further amplifying, converting and transmitting the blood flow signal data collected by the ultrasonic transducer to a Bluetooth earphone or the like; or a circuit board capable of visualizing the blood flow signal data collected by the ultrasonic transducer on an external device or display screen can be used, which can be set according to specific needs. Further, the power supply unit can be arranged on the circuit board, and the plug (or wire) arranged at one end of the circuit board and extending outward from the sealing member is connected to an external power source. When charging or supplying power to the probe of the present application, the external power source is directly connected to the jack on the sealing member at one end of the handle, and the jack is directly connected to the plug on the circuit board, so that the power is directly transmitted to the power supply unit on the circuit board, and then the power is supplied to the ultrasonic transducer, light source and counting chip and other components.

[0042] In some preferred embodiments of the present application, a counting chip is arranged on the sleeve for counting the use frequency, use time and other parameters of the probe, and can also be used to determine whether the sleeve and the handle are matched or not. The specific type of the counting chip is not specially limited in the present application, and a commercially available chip product can be used.

[0043] In some preferred embodiments of the present application, the electrical connection between the sleeve and the handle is achieved through a pre-provided conduction unit, effectively avoiding the obstruction caused by a large number of line connections on the product, and reducing the product's defective rate. Specifically, a contact is provided in the interface on the annular proximal end of the light shielding member, which is directly fixed in the corresponding hole. The number of contacts can be determined as needed. One end of the contact is connected to the pre-provided wire on the handle in the interface (the material of the pre-provided wire is not specially limited in the present application, and any conductor material capable of conducting electricity can be used, including but not limited to pre-provided copper wire). The other end is connected to the wire of the ultrasonic transducer, light source, etc., thereby realizing circuit conduction.

[0044] In some embodiments of the present application, the thickness of the sleeve (mainly the average thickness of the light guiding member part) is in the range of 1.2-3.0 mm, wherein the thickness of the sleeve is the distance between the outer wall and the inner wall of the sleeve. When the thickness of the sleeve is too thin, it affects the groove on the surface of the sleeve, affecting the sealing effect of the wire; when the thickness is too large, it is easy to occupy the internal space of the sleeve, affecting the operation. Further, the longitudinal length of the light shielding member is not greater than 40 mm, wherein the longitudinal length refers to the length in the direction of the annular proximal end and the tubular distal end, i.e. the vertical distance between the edge of the annular proximal end and the edge of the tubular distal end towards the light guiding member. Referring to the length of the line A in FIG. 2. In the present application, the longitudinal length of the light shielding member is effectively reduced by the targeted setting of the annular proximal end, thereby further reducing the longitudinal depth of the probe under the premise that the longitudinal length of the probe itself meets the operation of the hemorrhoid artery ligation, so that the distance between the needle holding operation port (the surgical operation window with the annular proximal end opening outward) and the operation window on the sleeve (the hemorrhoid artery ligation operation window) is shorter, so that shorter and smaller needle holders, knot pushers and other surgical instruments can be used for operation, so as to achieve the purpose of larger needle holder operation angle and shorter operation distance, greatly reducing the difficulty of surgical operation.

[0045] The sleeve in the soft light Doppler ultrasound detector provided in the present application can also be a double sleeve. When the sleeve is a double sleeve, it is composed of an inner sleeve and an outer sleeve, and the ultrasound transducer is arranged on the inner sleeve. The inner sleeve and the outer sleeve are respectively provided with an inner sleeve operation window and an outer sleeve operation window. The outer sleeve operation window and the inner sleeve operation window can be moved or rotated so that the outer sleeve operation window and the inner sleeve operation window at least partially coincide with each other at at least one operation window position to form a hemorrhoid suspension fixing operation window. The specific structure of the outer sleeve is not specially limited, and can refer to the previous patents of the applicant. The inner sleeve is mainly composed of a light shielding member and a light guide member. The transparency of the light shielding member is lower than that of the light guide member. At this time, the light guide member has a circular cross-section open end for fixed connection with the light shielding member, and a longitudinally extending open inner sleeve operation window for forming a suspension fixing operation window with the outer sleeve operation window. The inner sleeve is detachably connected to the handle through the light shielding member. The specific structure of the light shielding member, the connection mode between the handle and the light shielding member, the layout mode of the lines of the ultrasound transducer and the light source, and the like can be consistent with the structure and mode when the sleeve is a single sleeve in the above scheme.

[0046] Embodiment 1

[0047] Referring to FIGS. 1-3, the present embodiment provides a soft light Doppler ultrasound detector, which comprises a sleeve 1 and a handle 03. The standard thickness of the sleeve 1 is about 1.8 mm.

[0048] The sleeve 1 is composed of a black light shielding member 02 with low transparency and a transparent light guide member 01 with high transparency. The fixed connection part of the light shielding member 02 and the light guide member 01 overlaps to form an overlapping part 107 (which is specifically an overlapping part formed by the open end 106 of the light guide member 01 and the tubular distal end 207 in the direction of the light guide member 01). The light source mounting cavity 201 is arranged in the overlapping part 107. The sleeve 1 is provided with an ultrasound transducer 101 on the outer wall. The outer wall of the sleeve is provided with a groove 102 extending in the axial direction. The first end of the groove 102 extends to the operation window 104 on the light guide member 01, and the second end passes through the annular proximal end 208 to contact the copper contact 203 in the interface 202. The ultrasound transducer 101 is arranged at the first end of the groove 102.

[0049] The light guide member 01 has a closed end 105 and an open end 106 with a tubular structure. The closed end 105 of the light guide member 01 is provided with an operation window 104 penetrating the sleeve side wall. The light guide member 01 is fixedly connected with the light shielding member 02 through the open end 106. The open end 106 of the light guide member 01 is provided with a shielding part 103 matched with the light source mounting cavity 201, so as to fixedly mount the light source in the light source mounting cavity 201.

[0050] The light shielding piece 02 has lower transparency than the light guide piece 01; the light shielding piece 02 comprises a tubular distal end 207 facing the direction of the light guide piece 01 and an annular proximal end 208 away from the direction of the light guide piece 01, three light source mounting cavities 201 are arranged on the tubular distal end 207 and face the direction of the light guide piece 01, and a light source is arranged in each light source mounting cavity 201; the light emitted by the light source is refracted by the light shielding piece 02 and then transmitted by the light guide piece 01 to illuminate the inside of the sleeve 1; the annular proximal end 208 of the light shielding piece 02 is provided with an interface 202 for mounting a handle 03, and the handle 03 is detachably connected to the sleeve 1 through the interface 202; the overlapping part is the part formed after the tubular distal end 207 is covered by the open end 106 of the light guide piece 01; a wire embedding groove 204 is arranged at the connection between the tubular distal end 207 and the annular proximal end 208 of the light shielding piece 02 in the circumferential direction, and the three light source mounting cavities 201 are connected through the wire embedding groove 204; a copper contact 203 is arranged in the interface 202 on the annular proximal end 208, and the ultrasonic transducer 101 and the light source are connected to a power supply unit in the handle 03 through the copper contact 203; a counting chip 205 is arranged on the light shielding piece 02, and the counting chip 205 is connected to the power supply unit in the handle 03 through the copper contact 203 in the interface 202; the longitudinal length of the light shielding piece 02 is about 19.5 mm;

[0051] A power supply unit is arranged in the handle 03, and the ultrasonic transducer 101 and the light source are powered by the power supply unit in the handle 03; one end of the handle 03 connected to the sleeve 1 is a one-piece closed structure, and the other end is sealed and fixed by a sealing member; the handle 03 has a hollow structure, and a circuit board 307 is arranged in the handle 03; the power supply unit is connected to the copper contact 203 in the interface 202 through a pre-installed copper wire 303 on the circuit board 307; the sealing member comprises a charging interface plate 304 and a bottom cover 305 arranged outside the charging interface plate 304; the charging interface plate 304 is provided with a charging hole matched with a tab 306 arranged at one end of the circuit board 307;

[0052] The interface 202 on the annular proximal end 208 has a hollow structure with one end open, which matches the protruding structure 302 on one end of the integrally formed closed structure of the handle 03; the hollow structure of the interface 202 is detachably connected with the handle 03 through the protruding structure 302 of the handle 03; one end of the integrally formed closed structure of the handle 03 is provided with an elastic telescopic member 301, the elastic telescopic member 301 is provided with a buckle 311 and a matched spring, the interface 202 is provided with a clamping groove 206 matched with the buckle 311, and the interface 202 is detachably connected with the handle 03 through the clamping groove 206 and the buckle 311.

[0053] The soft light Doppler ultrasound detector provided by the application is applied to the field of hemorrhoid surgical treatment, and the hemorrhoid surgical treatment includes hemorrhoid artery ligation.

[0054] The use process of the detector provided by the application includes but is not limited to the following:

[0055] (1) Insert the sleeve 1 of the soft light Doppler ultrasound detector into the patient's anus and rectum;

[0056] (2) Start the power supply unit in the handle 03 to activate the ultrasonic transducer 101 and the light source;

[0057] (3) The ultrasonic transducer 101 starts to collect arterial blood flow signals, and the doctor can observe or listen to the blood flow signals through the display screen of the detector or the Bluetooth audio matching the detector and other equipment;

[0058] (4) Find the arterial blood flow signal, diagnose the position of the hemorrhoid artery;

[0059] (5) The doctor performs hemorrhoid artery ligation surgery by operating the window 104, uses the soft light in the sleeve 1 to clearly illuminate, and can verify whether the hemorrhoid artery ligation operation is successful by whether the arterial signal is weakened or disappeared.

[0060] Example 2

[0061] The embodiment provides a soft light Doppler ultrasound detector, and specifically refers to FIGS. 1-5, which comprises a sleeve and a handle 03; the sleeve is composed of an inner sleeve 011 and an outer sleeve 401, wherein the inner sleeve 011 is composed of a light shielding piece 02 and a light guide piece 01, the transparency of the light shielding piece 02 is lower than that of the light guide piece 01; at this time, the light guide piece 01 has a circular cross-section open end 106 for fixed connection with the light shielding piece 02, and a longitudinally extended open inner sleeve operation window 108 for coinciding with the outer sleeve operation window 402 to form a hanging fixed operation window; the inner sleeve 011 is detachably connected with the handle 03 through the light shielding piece 02, wherein the specific structure of the light shielding piece 02, the connection mode between the handle and the light shielding piece, the circuit layout mode of the ultrasonic transducer and the light source and the like can be consistent with the structure and mode when the sleeve is a single sleeve in the above scheme. The ultrasonic transducer 101 is arranged on the inner sleeve 011, wherein the inner sleeve operation window 108 and the outer sleeve operation window 402 are arranged on the inner sleeve 011 and the outer sleeve 401 respectively; the outer sleeve operation window 402 and the inner sleeve operation window 108 can be moved or rotated, so that the outer sleeve operation window 402 and the inner sleeve operation window 108 at least partially coincide with each other at at least one operation window position to form a hemorrhoid hanging fixed operation window; or the outer sleeve operation window 402 and the inner sleeve operation window 108 can be moved or rotated, so that the outer sleeve operation window 402 and the inner sleeve operation window 108 are at opposite positions to form a ligation window; the outer sleeve 401 is longitudinally extended to form an open outer sleeve proximal end 403 and a closed outer sleeve distal end 404; the outer sleeve proximal end 403 is provided with a holding part for rotating the outer sleeve or pulling it out of the anorectum and the like.

[0062] Finally, it should be noted that the above only describes some preferred embodiments of the present application and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soft-light Doppler ultrasound probe comprising a sleeve and a handle, the sleeve having an ultrasound transducer and an operating window provided on its outer wall, characterized in that, The sleeve comprises a light-shielding member with low transparency and a light-guiding member with high transparency, the transparency of the light-shielding member is lower than that of the light-guiding member; the light-guiding member has an open end, the light-guiding member is fixedly connected with the light-shielding member through the open end; the light-shielding member comprises a tubular distal end facing the direction of the light-guiding member and an annular proximal end away from the direction of the light-guiding member, a plurality of light source mounting cavities are arranged on the tubular distal end, and a light source is arranged in each light source mounting cavity; the light emitted by the light source is refracted by the light-shielding member and then transmitted through the light-guiding member to illuminate the inside of the sleeve; an interface for mounting a handle is arranged on the annular proximal end of the light-shielding member, the handle is detachably connected with the sleeve through the interface; a power supply unit is arranged in the handle, and the ultrasonic transducer and the light source are powered by the power supply unit in the handle.

2. The ultrasonic probe of claim 1, wherein, The sleeve is a single sleeve, which is composed of a light-shielding member with low transparency and a light-guiding member with high transparency, the light-guiding member has a closed end and an open end with a tubular structure, and an operation window penetrating through the side wall of the sleeve is arranged at the proximal closed end of the light-guiding member.

3. The ultrasonic probe of claim 1, wherein, The sleeve is a double sleeve, which comprises an inner sleeve and an outer sleeve, the inner sleeve is movably and / or rotatably arranged in the cavity of the outer sleeve; the inner sleeve is composed of the light-shielding member with low transparency and the light-guiding member with high transparency; wherein the light-guiding member further comprises another end opposite to the open end, the other end is open-shaped, and an inner sleeve operation window is arranged near the other end; an outer sleeve operation window is arranged on the outer sleeve, and the outer sleeve operation window and the inner sleeve operation window can be moved or rotated so that the outer sleeve operation window and the inner sleeve operation window at least partially coincide with each other at at least one operation window position to form a hemorrhoidal body suspension fixing operation window.

4. The ultrasonic probe of claim 2, wherein, The fixed connection part of the light-shielding member and the light-guiding member at least partially overlaps to form an overlapping part, and the light source mounting cavities are arranged in the overlapping part.

5. The ultrasonic probe of claim 4, wherein, A wire embedding groove is arranged at the connection part of the tubular distal end and the annular proximal end of the light-shielding member in the circumferential direction, and the wire embedding groove connects the plurality of light source mounting cavities.

6. The ultrasound probe of claim 4 or 5, wherein, One end of the handle connected with the sleeve is a one-piece closed structure, and the other end of the handle is sealingly fixed through a sealing member.

7. The ultrasonic probe of claim 6, wherein, The interface on the annular proximal end has a hollow structure with one end open, and the hollow structure matches a protruding structure at the one-piece closed structure of the handle; The hollow structure of the interface is detachably connected with the handle through the protruding structure of the handle.

8. The ultrasonic probe of claim 7, wherein, A contact is arranged in the interface on the annular proximal end, and the ultrasonic transducer and the light source are connected with the power supply unit in the handle through the contact.

9. The ultrasonic probe of claim 7, wherein, One end of the one-piece closed structure of the handle is provided with an elastic extension member, a buckle is arranged on the elastic extension member, a clamping groove matched with the buckle is arranged on the interface, and the interface is detachably connected with the handle through the clamping groove and the buckle.

10. The ultrasonic probe of claim 2, wherein, A shielding part matched with the light source mounting cavity is arranged on the open end of the light-guiding member to fix the light source arranged in the light source mounting cavity.

11. The ultrasonic probe of claim 8, wherein, The handle has a hollow structure, inside which a circuit board is arranged, and the power supply unit is connected with the contact in the interface through the preset wire on the circuit board.

12. The ultrasonic probe of claim 6, wherein, The sealing member comprises a charging interface plate and a bottom cover arranged outside the charging interface plate.

13. The ultrasonic probe of claim 8, wherein, The outer wall of the sleeve is provided with a groove extending in the axial direction, the first end of the groove extending to the near operation window on the light guide, and the second end penetrating through the annular proximal end and contacting the contact in the interface.

14. The ultrasonic probe of claim 13, wherein, The ultrasonic transducer is arranged at the first end of the groove.

15. The ultrasonic probe of claim 13, wherein, The light shielding member is provided with a counting chip, which is connected with the power supply unit in the handle through the contact in the interface.

16. The soft-doppler ultrasound probe according to any of claims 7 to 15, characterized in that, The thickness of the sleeve ranges from 1.2 to 3.0 millimeters; the longitudinal length of the light shielding member is not greater than 40 millimeters.

17. Use of a soft-light Doppler ultrasound probe, characterized in that The soft light Doppler ultrasonic detector according to any one of claims 1-16 is applied to the field of hemorrhoid surgical treatment, and the hemorrhoid surgical treatment comprises hemorrhoid artery ligation and hemorrhoid body suture suspension fixation surgery.

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