Ultrasonic probe and ultrasonic endoscope system

Abstract

The invention relates to an ultrasonic probe and an ultrasonic endoscope system. The ultrasonic probe comprises a shell, a sheath tube adjusting part, a sheath tube, a rotating shaft, a spring tube, an ultrasonic transducer and a locking assembly. The sheathing canal adjusting piece is connected to the shell, and one end of the sheathing canal is fixed to the sheathing canal adjusting piece; the rotating shaft is rotatably arranged in the shell; one end of the bourdon tube is connected to the rotating shaft, and the other end of the bourdon tube extends into the sheath tube; the ultrasonic transducer is arranged at the other end of the bourdon tube and located in the sheath tube; the spring tube is arranged in the sheath tube adjusting part in a penetrating manner, and the spring tube can drive the ultrasonic transducer to rotate in the sheath tube under the driving of the rotating shaft; the locking assembly can move to an unlocking position and a locking position relative to the sheathing canal adjusting part; at the locking position, the sheath tube adjusting piece is locked by the locking assembly; at the unlocking position, the sheathing canal adjusting piece is movably connected with the shell, and the sheathing canal adjusting piece can drive the sheathing canal to advance or retreat in the axial direction of the spring tube.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an ultrasonic probe and an endoscopic ultrasound system. Background Art

[0002] The ultrasonic small probe is a device that uses a piezoelectric wafer to transmit and receive ultrasonic waves, and mainly uses the piezoelectric effect of materials to achieve the conversion of electrical energy and acoustic energy; when performing endoscopic ultrasound examination, the front hose part of the ultrasonic small probe can enter the patient's body cavity through the forceps channel of the endoscope for ultrasonic detection, and has the characteristics of small size, simple operation, clear imaging, etc.

[0003] Traditional ultrasonic probes generally have a spring tube, an ultrasonic transducer provided at the end of the spring tube, and a sheath tube. During use, the spring tube may axially expand and contract relative to the sheath tube, causing the ultrasonic transducer at the end of the spring tube to shift in position, resulting in the ultrasonic transducer at the other end of the spring tube being unable to align with the transparent window position of the sheath tube or even interfering with the end of the sheath tube, affecting the detection of the ultrasonic probe and even causing damage to the probe. For this reason, some traditional ultrasonic probes are designed with an axially adjustable rotating shaft to drive the axial adjustment of the spring tube, realizing the scheme of telescopic adjustment of the spring tube relative to the sheath tube. However, during actual use, components such as the outer shell need to be disassembled before adjustment, resulting in a cumbersome operation problem.

[0004] The above information disclosed in the background art of the present application is only used to understand the background of the concept of the present application and may include information that does not constitute prior art. Summary of the Invention

[0005] Based on this, it is necessary to provide an ultrasonic probe and an endoscopic ultrasound system for the above problems.

[0006] An ultrasonic probe, comprising:

[0007] An outer shell;

[0008] A sheath tube adjusting member, the sheath tube adjusting member being connected to the outer shell;

[0009] A sheath tube, one end of the sheath tube being fixed to the sheath tube adjusting member;

[0010] A rotating shaft, the rotating shaft being rotatably provided in the outer shell;

[0011] A spring tube, one end of the spring tube being connected to the rotating shaft, and the other end of the spring tube extending into the sheath tube;

[0012] An ultrasonic transducer, the ultrasonic transducer being provided at the other end of the spring tube and located in the sheath tube;

[0013] A locking assembly that can move relative to the sheath adjusting member to an unlocked position and a locked position; when in the locked position, the locking assembly locks the sheath adjusting member; when in the unlocked position, the sheath adjusting member is movably connected to the housing, and the sheath adjusting member can drive the sheath to move forward or backward along the axial direction of the spring tube.

[0014] Before describing the technical effects achievable by the embodiments of the present application, it should be noted in advance that traditional ultrasonic probes generally have a spring tube, an ultrasonic transducer provided at the end of the spring tube, and a sheath. During use, the spring tube may axially expand and contract relative to the sheath, causing the ultrasonic transducer at the end of the spring tube to shift in position, resulting in the ultrasonic transducer at the other end of the spring tube being unable to align with the transparent end of the sheath or even interfering with the sheath, affecting the detection accuracy of the ultrasonic probe. To address this, some traditional ultrasonic probes are designed with a scheme where the sheath can be adjusted to expand and contract relative to the spring tube. However, in actual use, there are problems with inconvenient adjustment of the sheath. For example, in the patent application with the application number "202211483946.9", it is necessary to first expose the entire front cover and the various components inside to adjust the relative position of the sheath and the spring tube. This is not only inconvenient to operate but also prone to reducing the overall sealing performance of the probe after multiple disassembly, and the various components of the probe are more likely to be damaged.

[0015] In the face of such problems as described above, the above ultrasonic probe of the present application can at least achieve the following beneficial effects: When adjusting the relative position of the sheath and the spring tube, the locking assembly can be moved to the unlocked position. At this time, the sheath adjusting member is movably connected to the housing, and the sheath adjusting member can move relative to the housing and synchronously drive the sheath to move forward or backward relative to the spring tube, so that the sheath and the ultrasonic transducer at the other end of the spring tube maintain a relatively reasonable position, that is, the sheath does not interfere with the ultrasonic transducer at the other end of the spring tube, and the ultrasonic transducer can be properly aligned with the transparent end of the sheath for normal operation. When the relative position of the sheath and the spring tube is adjusted in place, the locking assembly can be moved to the locked position. At this time, the position of the sheath adjusting member is locked, and the sheath driven by the sheath adjusting member cannot move either, that is, the relative position of the sheath and the spring tube is fixed, which can prevent the sheath from shifting in position relative to the ultrasonic transducer at the other end of the spring tube during operation. It should be emphasized that the entire process of adjusting the expansion and contraction of the sheath does not require disassembling or removing any components of the ultrasonic probe. Simply adjusting the locking assembly to the unlocked state allows direct operation of the sheath adjusting member to drive the sheath to move relative to the spring tube. Compared with the traditional scheme mentioned above, not only is disassembly unnecessary, but the operation of adjusting the sheath is more convenient, and it is beneficial to maintain the overall sealing performance of the ultrasonic probe and protect the various components inside the ultrasonic probe.

[0016] In one embodiment, one end of the sheath tube adjusting member is disposed inside the housing, and at least a part of the inner circumferential surface of the housing is threadedly connected to at least a part of the outer circumferential surface of the sheath tube adjusting member. In the unlocked position, the sheath tube adjusting member can rotate relative to the housing in a threaded manner and drive the sheath tube to move forward or backward along the axial direction of the spring tube. For the ultrasonic probe of the present application, the threaded connection between the sheath tube adjusting member and the housing means that when the sheath tube adjusting member rotates relative to the housing in a threaded manner, the movement of the sheath tube driven by the sheath tube adjusting member is smoother, and the movement of the sheath tube can be controlled more precisely, so as to achieve a more accurate and smooth position adjustment between the sheath tube and the ultrasonic transducer at the other end of the spring tube, and reduce the risk of interference damage to the ultrasonic transducer during the adjustment process of the sheath tube.

[0017] In one embodiment, the sheath tube adjusting member includes a main body and an adjusting end connected to the main body. The adjusting end protrudes radially from the outer circumferential surface of the main body. The adjusting end extends into the housing and the outer circumferential surface of the adjusting end is threadedly connected to the inner circumferential surface of the housing; the ultrasonic probe further includes a limiting member, the limiting member is fixed to the housing, and at least a part of the limiting member is located on one side of the adjusting end close to the main body, and the limiting member is used to limit the movement of the adjusting end in the axial direction of the housing. When the adjusting end rotates relative to the housing in a threaded manner, the adjusting end can drive the main body and the entire sheath tube adjusting member to move along the axial direction of the housing. Since the adjusting end protrudes from the outer circumferential surface of the main body, that is, the diameter dimension of the adjusting end is larger, and the limiting member is located on one side of the adjusting end close to the main body. When the adjusting end rotates relative to the housing in a threaded manner and drives the entire sheath tube adjusting member to extend outwards, when the adjusting end moves to the position where the limiting member is located, the adjusting end will abut against the limiting member and cannot continue to move. In other words, the setting of the limiting member can prevent the adjusting end and the entire sheath tube adjusting member from extending out of the housing without limit, prevent the sheath tube adjusting member from completely disengaging from the housing and separating from the housing, and maintain the sealing effect of the entire ultrasonic probe.

[0018] In one embodiment, the sheath tube adjusting member includes a main body and an adjusting end connected to the main body. The adjusting end protrudes radially outward from the outer circumferential surface of the main body. The adjusting end extends into the outer shell, and the outer circumferential surface of the adjusting end is threadedly connected to the inner circumferential surface of the outer shell. The ultrasonic probe further includes a limiting member. A limiting hole is formed through the side circumferential surface of the outer shell. The limiting member is inserted into the outer shell through the limiting hole, and one end of the limiting member is located on the side of the adjusting end close to the main body. The limiting member is used to limit the movement of the adjusting end in the axial direction of the outer shell. When the adjusting end rotates relative to the outer shell in a threaded manner, the adjusting end can drive the main body and the entire sheath tube adjusting member to move along the axial direction of the outer shell. Since the adjusting end protrudes from the outer circumferential surface of the main body, that is, the diameter dimension of the adjusting end is larger, and one end of the limiting member is located on the side of the adjusting end close to the main body. When the adjusting end rotates relative to the outer shell in a threaded manner and drives the entire sheath tube adjusting member to extend outward, when the adjusting end moves to the position where the limiting member is located, the adjusting end will abut against the limiting member and cannot continue to move. In other words, the setting of the limiting member can prevent the adjusting end and the entire sheath tube adjusting member from extending outward without limit, prevent the sheath tube adjusting member from completely disengaging from the outer shell and separating from the outer shell, and maintain the sealing effect of the entire ultrasonic probe. Among them, the limiting member is inserted into the outer shell through the limiting hole, and the hole wall of the limiting hole can play a role in limiting and fixing the limiting member. The limiting hole is formed on the outer shell, which means that the outer shell and the limiting member can be manufactured separately. During subsequent assembly, only the limiting member needs to be inserted into the limiting hole. Compared with the method of directly fixing the limiting member to the outer shell, such a setting can reduce the structural complexity of the outer shell and the manufacturing difficulty of the outer shell, and improve the production efficiency and the production yield rate of good products.

[0019] In one embodiment, the outer shell includes a housing and an extension portion connected to the edge of the housing. One end of the sheath tube adjusting member extends into the housing and is threadedly connected to the inner circumferential surface of the housing. There is a gap between the outer circumferential surface of the sheath tube adjusting member and the inner circumferential surface of the extension portion.

[0020] In one embodiment, the locking assembly includes an expansion member disposed within the gap. In the locked position, the expansion member expands radially along the sheath adjuster and abuts between the outer circumferential surface of the sheath adjuster and the inner circumferential surface of the extension portion to fix the sheath adjuster to the housing. In the unlocked position, the expansion member contracts radially along the sheath adjuster, enabling the sheath adjuster to rotate threadedly relative to the housing. In the locked position, the expansion member expands and abuts the sheath adjuster and the extension portion of the housing on both sides thereof, locking the sheath adjuster to the housing by increasing the friction force, and at this time, the sheath adjuster is fixed and cannot rotate threadedly relative to the housing. Conversely, in the unlocked position, when the expansion member contracts radially along the sheath adjuster, the friction force is reduced to unlock the sheath adjuster from the housing. In addition, in the locked state, the expansion member expands and abuts the sheath adjuster and the extension portion of the housing on both sides thereof, which can also play a sealing role to prevent external moisture and other substances from entering the ultrasonic probe through this part.

[0021] In one embodiment, the locking assembly includes a locking sleeve sleeved on the outer circumferential surface of the extension portion and threadedly connected to the extension portion. The locking sleeve can move to the locked position and the unlocked position. In the locked position, the locking sleeve approaches and presses the expansion member, and the expansion member expands radially along the sheath adjuster and abuts between the outer circumferential surface of the sheath adjuster and the inner circumferential surface of the extension portion to fix the sheath adjuster to the housing. In the unlocked position, the locking sleeve moves away from the expansion member, and the expansion member contracts radially along the sheath adjuster, enabling the sheath adjuster to rotate threadedly relative to the housing. In the locked position, the locking sleeve approaches and presses the expansion member, and the expansion member expands and abuts the sheath adjuster and the extension portion of the housing on both sides thereof. Conversely, in the unlocked position, the locking sleeve moves away from the expansion member, and the expansion member contracts radially along the sheath adjuster.

[0022] In one embodiment, the locking sleeve includes a pressing portion and a sleeve body. The sleeve body is sleeved on the outer circumferential surface of the extension portion and threadedly connected to the extension portion. One end of the pressing portion is connected to the edge of the sleeve body and is disposed at an angle with the sleeve body. The other end of the pressing portion extends toward the outer circumferential surface of the sheath adjuster for pressing the expansion member.

[0023] In one embodiment, the pressing portion extends circumferentially along the sleeve body in a ring shape.

[0024] In one embodiment, the expansion member extends in a ring shape along the circumference of the sheath adjusting member. The ring-shaped expansion member increases the contact area between the expansion member and the outer peripheral surface of the sheath adjusting member, which can not only generate greater friction and locking effect in the locked state, but also achieve better sealing effect.

[0025] In one embodiment, one end of the extrusion portion abuts against the outer peripheral surface of the sheath tube adjusting member, so as to minimize the gap between the extrusion portion and the outer peripheral surface of the sheath tube adjusting member and prevent external moisture and other substances from entering.

[0026] In one embodiment, the locking assembly further comprises a pressure ring, which is arranged between the extrusion part and the expansion member, and in the locking position, the extrusion part squeezes the expansion member through the pressure ring. The pressure ring can be adapted to and fully abut the annular expansion member, and has a better limiting and squeezing effect on the expansion member, thereby improving the locking effect of the expansion member on the sheath adjustment member and the housing in the locking position, and can cooperate with the expansion member to produce a better sealing effect in the locked state.

[0027] In one embodiment, the locking assembly further comprises a washer, which is sleeved on the sheath adjusting member and located on the side of the expansion member facing away from the extrusion portion. When in the locked position, in the direction in which the expansion member is extruded, the washer and the pressure ring are respectively located on opposite sides of the expansion member, which can achieve a better extrusion effect on the expansion member, allowing the expansion member to deform and expand as much as possible along the radial direction of the sheath adjusting member, thereby increasing the friction force and ensuring the locking effect of the sheath adjusting member and the housing.

[0028] In one embodiment, the housing is further provided with a sealing groove, a sealing ring is provided in the sealing groove, and one end of the sleeve body away from the extrusion portion extends into the sealing groove and abuts against the sealing ring. The sealing ring can seal the gap between the groove wall of the sealing groove and the sleeve body of the locking sleeve, the groove wall of the sealing groove can limit the sleeve body structure of the locking sleeve to a certain extent, and when in the locked position, the sleeve body goes deeper into the sealing groove and squeezes the sealing ring, causing the sealing ring to produce a certain deformation and achieve a better sealing effect for the sealing at this location.

[0029] In one embodiment, an avoidance groove is further provided on the outer circumferential surface of the housing. One end of the sleeve body away from the extrusion part extends into the avoidance groove. A limiting groove is provided on the side circumferential surface of the sleeve body, and a sealing ring is arranged in the limiting groove. The sealing ring abuts between the groove wall of the limiting groove and the groove wall of the avoidance groove. The sleeve body of the locking sleeve is sleeved on the outer circumferential surface of the housing, and there may be some gaps between the two, so there is a possibility that moisture enters the interior of the housing through these gaps and corrodes the components therein. The setting of this embodiment can solve the foregoing problems. One end of the sleeve body away from the extrusion part extends into the avoidance groove, and at the same time, the limiting groove also extends into the avoidance groove. Therefore, the groove wall of the avoidance groove covers the limiting groove and the sealing ring therein, and the sealing ring can abut between the groove wall of the avoidance groove and the groove wall of the limiting groove, preventing external moisture and the like from entering, achieving a sealing effect. In addition, the sleeve body of the locking sleeve is threadedly connected to the outer circumferential surface of the housing. When the locking sleeve is rotated, the sleeve body will also move along the axial direction of the housing. If the sleeve body is moved towards the direction close to the limiting groove, the avoidance groove can also provide an avoidance space for the insertion of the end of the sleeve body. In other words, such a structural setting not only achieves a sealing effect but also leaves sufficient space for the movement of the sleeve body of the locking sleeve.

[0030] In one embodiment, the outer shell further includes a sealing part connected to the housing. The sealing part is spaced apart from the outer circumferential surface of the housing to form the avoidance groove. The avoidance groove faces one end of the sleeve body away from the extrusion part, and the avoidance groove can provide an avoidance space for the movement of the sleeve body in the axial direction of the housing.

[0031] In one embodiment, the ultrasonic probe further includes an elastic sleeve. The elastic sleeve is sleeved outside the sheath tube adjusting member and is located at one end of the sheath tube adjusting member away from the outer shell. The elastic sleeve can play a certain protective role for the sheath tube adjusting member and can also serve as a starting point when operating the sheath tube adjusting member to rotate relative to the housing of the outer shell, improving the operation convenience.

[0032] In one embodiment, a limiting protrusion is further formed on the outer circumferential surface of the sheath tube adjusting member, and a corresponding limiting recess is formed on the elastic sleeve. The elastic sleeve is press-fitted on the sheath tube adjusting member and the limiting protrusion is snapped into the limiting recess. Such a structural setting can improve the connection reliability between the sheath tube adjusting member and the elastic sleeve.

[0033] In one embodiment, the ultrasonic probe further includes a sealing ring and a compression sleeve disposed within the sheath tube adjusting member. The outer surface of the compression sleeve is fixed to the inner surface of the sheath tube adjusting member. The sealing ring is sleeved on the outer circumferential surface of the rotating shaft. The sealing ring abuts between the outer circumferential surface of the rotating shaft and the inner circumferential surface of the compression sleeve. The sheath tube passes through the sheath tube adjusting member and is sleeved on the outer circumferential surface of the compression sleeve. The compression sleeve is used to tightly fix the sheath tube within the sheath tube adjusting member. The provision of the sealing ring can, while achieving a sealing effect, prevent mutual wear between the outer circumferential surface of the rotating shaft and the inner circumferential surface of the compression sleeve, and improve the service life of the ultrasonic probe.

[0034] In one embodiment, the bellows passes through the sheath tube adjusting member, and the bellows can drive the ultrasonic transducer to rotate within the sheath tube under the drive of the rotating shaft.

[0035] In one embodiment, the ultrasonic probe further includes a waterproof cap, and the waterproof cap is hermetically covered on one end of the housing provided with the male connector through an interference fit of the shaft hole.

[0036] In one embodiment, the ultrasonic probe further includes a bearing, and the bearing is sleeved on the rotating shaft and is located between the inner circumferential surface of the housing and the outer circumferential surface of the rotating shaft.

[0037] In one embodiment, the ultrasonic probe further includes a male connector. The male connector is axially disposed along the rotating shaft on a side of the rotating shaft away from the bellows. A receiving cavity is formed through the rotating shaft. The ultrasonic probe further includes a signal line. One end of the signal line extends into the bellows to be connected to the ultrasonic transducer, and the other end of the signal line passes through the receiving cavity to be connected to the male connector.

[0038] The present application further provides an ultrasonic endoscope system, which includes: a probe driver, an ultrasonic host, a display device, and the ultrasonic probe as described in any one of the above embodiments. The driving end of the probe driver is connected to a lever, the lever drives the rotating shaft to rotate, the ultrasonic signal obtained by the ultrasonic transducer is transmitted into the ultrasonic host through a Lemo connector, and an ultrasonic image is generated through signal processing. The display device is used to display the ultrasonic image.

[0039] Since the above endoscopic ultrasound system includes the ultrasound probe described in any of the above embodiments, the endoscopic ultrasound system also has at least the following beneficial effects: When adjusting the relative position of the sheath tube and the spring tube, the locking assembly can be moved to the unlocked position at this time. At this time, the sheath tube adjusting member is movably connected to the housing, and the sheath tube adjusting member can move relative to the housing, and synchronously drive the sheath tube to move forward or backward relative to the spring tube, so that the ultrasonic transducer at the other end of the sheath tube and the spring tube maintains a relatively reasonable position, that is, the sheath tube does not interfere with the ultrasonic transducer at the other end of the spring tube, and the ultrasonic transducer can be properly aligned with the transparent window of the sheath tube to work properly. When the relative position of the sheath tube and the spring tube is adjusted in place, the locking assembly can be moved to the locking position. At this time, the position of the sheath tube adjusting member is locked, and the sheath tube driven by the sheath tube adjusting member cannot move either, that is, the relative position of the sheath tube and the spring tube is fixed, which can prevent the sheath tube from shifting relative to the ultrasonic transducer at the other end of the spring during the working process. It should be emphasized that during the entire telescopic adjustment process of the sheath tube, it is not necessary to disassemble or remove any components of the ultrasonic probe. Simply adjust the locking assembly to the unlocked state, and the sheath tube adjusting member can be directly operated to drive the sheath tube to move relative to the spring tube. Compared with the traditional scheme mentioned above, not only is the operation more convenient when adjusting the sheath tube, but also there is no need for disassembly, which is beneficial to maintaining the overall sealing of the ultrasonic probe and protecting each component inside the ultrasonic probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0041] Figure 1 FIG. is a schematic structural diagram of an ultrasonic probe provided by an embodiment of the present invention.

[0042] Figure 2 FIG. is a partial structural diagram of an ultrasonic probe provided by an embodiment of the present invention.

[0043] Figure 3 FIG. is a partial structural diagram of an ultrasonic probe provided by another embodiment of the present invention.

[0044] Figure 4 FIG. is a partial enlarged schematic diagram of an ultrasonic probe provided by another embodiment of the present invention.

[0045] Figure 5 FIG. is another partial structural diagram of an ultrasonic probe provided by an embodiment of the present invention.

[0046] Figure 6A schematic explosion structure diagram of an ultrasonic probe provided by an embodiment of the present invention.

[0047] Figure 7 A schematic structure diagram of an ultrasonic endoscope system provided by an embodiment of the present invention.

[0048] Reference numerals:

[0049] 1. Ultrasonic endoscope system; 10. Ultrasonic probe; 20. Probe driver; 30. Ultrasonic host; 40. Display device; 100. Housing; 110. Shell; 111. Sealing groove; 112. Sealing ring; 120. Extension part; 121. Gap; 130. Sealing part; 131. Avoidance groove; 140. Limiting hole; 200. Sheath tube adjusting part; 201. Main body; 202. Adjusting end; 210. Limiting convex part; 300. Sheath tube; 400. Rotating shaft; 410. Accommodating cavity; 500. Spring tube; 600. Ultrasonic transducer; 700. Locking assembly; 710. Tightening part; 720. Locking sleeve; 721. Sleeve body; 7211. Limiting groove; 722. Extrusion part; 730. Pressure ring; 740. Washer; 810. Elastic sleeve; 811. Limiting concave part; 820. Sealing ring; 830. Pressure sleeve; 840. Bearing; 850. Male connector; 860. Signal wire; 870. Waterproof cap; 880. Lever; 890. Lever mounting seat; 900. Limiting part. Detailed implementation manners

[0050] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0051] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6, in some embodiments, the present application provides an ultrasonic probe 10, which includes a housing 100, a sheath tube adjusting member 200, a sheath tube 300, a rotating shaft 400, a spring tube 500, an ultrasonic transducer 600, and a locking assembly 700. Among them, the sheath tube adjusting member 200 is connected to the housing 100, and the sheath tube 300 is fixed to the sheath tube adjusting member 200; the rotating shaft 400 is rotatably disposed in the housing 100; one end 510 of the spring tube 500 is connected to the rotating shaft 400, and the other end 520 of the spring tube 500 extends into the sheath tube 300; the ultrasonic transducer 600 is disposed at the other end 520 of the spring tube 500 and is located in the sheath tube 300; the spring tube 500 passes through the sheath tube adjusting member 200, and the spring tube 500 can drive the ultrasonic transducer 600 to rotate in the sheath tube 300 under the drive of the rotating shaft 400; the locking assembly 700 is connected to the housing 100 and can move relative to the sheath tube adjusting member 200 to an unlocking position and a locking position; in the locking position, the locking assembly 700 locks the sheath tube adjusting member 200; in the unlocking position, the sheath tube adjusting member 200 is movably connected to the housing 100, and the sheath tube adjusting member 200 can drive the sheath tube 300 to move forward or backward along the axial direction of the spring tube 500.

[0052] Before describing the technical effects achievable by the embodiments of the present application, it should be noted in advance that traditional ultrasonic probes generally have a spring tube, an ultrasonic transducer disposed at the end of the spring tube, and a sheath tube. During use, the spring tube may axially expand and contract relative to the sheath tube, causing the ultrasonic transducer at the end of the spring tube to shift in position, resulting in the ultrasonic transducer at the other end of the spring tube being unable to align with the transparent end of the sheath tube or even interfering with the sheath tube, affecting the detection accuracy of the ultrasonic probe. For this reason, some traditional ultrasonic probe designs have a scheme in which the sheath tube can be telescopically adjusted relative to the spring tube. However, in actual use, there are problems with inconvenient adjustment of the sheath tube. For example, in the patent application with the application number "202211483946.9", it is necessary to first expose the entire front cover and the various components inside it to adjust the relative position of the sheath tube and the spring tube. This is not only inconvenient to operate, but also repeated disassembly is likely to reduce the overall sealing performance of the probe, and the various components of the probe are more likely to be damaged.

[0053] In the face of the above-mentioned problems, the above-mentioned ultrasonic probe 10 of the present application can at least achieve the following beneficial effects: when it is necessary to adjust the relative position between the sheath tube 300 and the spring tube 500, the locking assembly can be moved to the unlocking position at this time. At this time, the sheath tube adjusting member 200 is movably connected to the housing 100, and the sheath tube adjusting member 200 can move relative to the housing 100 and synchronously drive the sheath tube 300 to move forward or backward relative to the spring tube 500, so that the ultrasonic transducer 600 at the other end 520 of the sheath tube 300 and the spring tube 500 maintains a relatively reasonable position, that is, the sheath tube 300 does not interfere with the ultrasonic transducer 600 at the other end 520 of the spring tube 500, and the ultrasonic transducer 600 can be properly aligned with the transparent end of the sheath tube 300 to work normally. When the relative position between the sheath tube 300 and the spring tube 500 is adjusted in place, the locking assembly can be moved to the locking position. At this time, the position of the sheath tube adjusting member 200 is locked, and the sheath tube 300 driven by the sheath tube adjusting member 200 cannot move either, that is, the relative position between the sheath tube 300 and the spring tube 500 is fixed, which can prevent the sheath tube 300 from shifting in position relative to the ultrasonic transducer 600 at the other end 520 of the spring during the working process. It should be emphasized that during the entire telescopic adjustment process of the sheath tube 300, it is not necessary to disassemble or remove any components of the ultrasonic probe 10. Simply adjust the locking assembly to the unlocked state, and then the sheath tube adjusting member 200 can be directly operated to drive the sheath tube 300 to move relative to the spring tube 500. Compared with the traditional solution mentioned above, not only is disassembly not required, but the operation is more convenient when adjusting the sheath tube 300, and it is beneficial to maintain the overall sealing performance of the ultrasonic probe 10 and protect each component inside the ultrasonic probe 10.

[0054] Specifically, as Figure 2As shown, in some of these embodiments, one end of the sheath tube adjuster 200 is disposed within the outer housing 100, and at least a portion of the inner circumferential surface of the outer housing 100 is threadedly connected to at least a portion of the outer circumferential surface of the sheath tube adjuster 200. In the unlocked position, the sheath tube adjuster 200 can rotate relative to the outer housing 100 in a threaded manner and drive the sheath tube 300 to advance or retract along the axial direction of the catheter 500. The size of the ultrasonic probe 10 itself is extremely small. When the traditional ultrasonic probe 10 adjusts the relative position between the sheath tube 300 and the catheter 500, generally, the sheath tube 300 is directly pulled along the axial direction of the catheter 500, and the adjustment accuracy is relatively low. Even when the sheath tube 300 is relatively long relative to the catheter 500, if the sheath tube 300 is to be retracted, when the sheath tube 300 is directly pulled too quickly, it may cause the sheath tube 300 to directly interfere and collide with the ultrasonic transducer 600, which is extremely likely to damage the ultrasonic transducer 600. For the ultrasonic probe 10 of the present application, the connection between the sheath tube adjuster 200 and the outer housing 100 is a threaded connection, which means that when the sheath tube adjuster 200 rotates relative to the outer housing 100 in a threaded manner, the movement of the sheath tube 300 driven by the sheath tube adjuster 200 is smoother, and the movement of the sheath tube 300 can be controlled more precisely, so that a more accurate and smooth position adjustment can be achieved between the sheath tube 300 and the ultrasonic transducer 600 at the other end 520 of the catheter 500, and the risk of possible interference damage to the ultrasonic transducer 600 during the adjustment of the sheath tube 300 is reduced.

[0055] More specifically, as Figure 4As shown, in some of these embodiments, the sheath tube adjuster 200 includes a main body 201 and an adjustment end 202 connected to the main body 201. The adjustment end 202 protrudes radially outward from the outer circumferential surface of the main body 201. The adjustment end 202 extends into the outer shell 100 and the outer circumferential surface of the adjustment end 202 is threadedly connected to the inner circumferential surface of the outer shell 100. The ultrasonic probe 10 further includes a limiting member 900. A limiting hole 140 is formed through the side circumferential surface of the outer shell 100. The limiting member 900 is inserted through the limiting hole 140 into the outer shell 100, and one end of the limiting member 900 is located on the side of the adjustment end 202 close to the main body 201. The limiting member 900 is used to limit the movement of the adjustment end 202 in the axial direction of the outer shell 100. When the adjustment end 202 rotates relative to the outer shell 100 in a threaded manner, the adjustment end 202 can drive the main body 201 and the entire sheath tube adjuster 200 to move along the axial direction of the outer shell 100. Since the adjustment end 202 protrudes from the outer circumferential surface of the main body 201, that is, the diameter dimension of the adjustment end 202 is larger, and one end of the limiting member 900 is located on the side of the adjustment end 202 close to the main body 201. When the adjustment end 202 rotates relative to the outer shell 100 in a threaded manner and drives the entire sheath tube adjuster 200 to extend outward, when the adjustment end 202 moves to the position where the limiting member 900 is located, the adjustment end 202 will abut against the limiting member 900 and cannot continue to move. In other words, the setting of the limiting member 900 can prevent the adjustment end 202 and the entire sheath tube adjuster 200 from extending out of the shell without limit, prevent the sheath tube adjuster 200 from completely disengaging from the outer shell 100 and separating from the outer shell 100, and maintain the sealing effect of the entire ultrasonic probe 10. Among them, the limiting member 900 is inserted through the limiting hole 140 into the outer shell 100, and the hole wall of the limiting hole 140 can play a role in limiting and fixing the limiting member 900. The formation of the limiting hole 140 on the outer shell 100 means that the outer shell 100 and the limiting member 900 can be manufactured separately, and during subsequent assembly, only the limiting member 900 needs to be inserted into the limiting hole 140. Compared with the method of directly fixing the limiting member 900 to the outer shell 100, such a setting can reduce the structural complexity of the outer shell 100 and the manufacturing difficulty of the outer shell 100, and improve production efficiency and production yield.

[0056] More specifically, in some other embodiments, the sheath adjusting member 200 includes a main body 201 and an adjusting end 202 connected to the main body 201. The adjusting end 202 protrudes radially outward from the outer circumferential surface of the main body 201. The adjusting end 202 extends into the outer shell 100 and the outer circumferential surface of the adjusting end 202 is threadedly connected to the inner circumferential surface of the outer shell 100. The ultrasonic probe 10 further includes a limiting member 900. The limiting member 900 can be fixed to the outer shell 100 by integral molding, bonding, welding or the like, and at least a part of the limiting member 900 is located on the side of the adjusting end 202 close to the main body 201. The limiting member 900 is used to limit the movement of the adjusting end 202 in the axial direction of the outer shell 100. When the adjusting end 202 rotates relative to the outer shell 100 in a threaded manner, the adjusting end 202 can drive the main body 201 and the entire sheath adjusting member 200 to move along the axial direction of the outer shell 100. Since the adjusting end 202 protrudes from the outer circumferential surface of the main body 201, that is, the diameter of the adjusting end 202 is larger, and the limiting member 900 is located on the side of the adjusting end 202 close to the main body 201. When the adjusting end 202 rotates relative to the outer shell 100 in a threaded manner and drives the entire sheath adjusting member 200 to extend outward, when the adjusting end 202 moves to the position where the limiting member 900 is located, the adjusting end 202 will abut against the limiting member 900 and cannot continue to move. In other words, the setting of the limiting member 900 can prevent the adjusting end 202 and the entire sheath adjusting member 200 from extending out of the shell without limit, prevent the sheath adjusting member 200 from completely disengaging from the outer shell 100 and separating from the outer shell 100, and maintain the sealing effect of the entire ultrasonic probe 10.

[0057] Please refer to Figure 2, in some embodiments, the housing 100 includes a housing body 110 and an extension portion 120 connected to the edge of the housing body 110. The extension portion 120 extends substantially along the axial direction of the housing body 110. One end of the sheath tube adjuster 200 extends into the housing body 110 and is threadedly connected to the inner circumferential surface of the housing body 110. The outer circumferential surface of the sheath tube adjuster 200 is spaced from the inner circumferential surface of the extension portion 120, and there is a gap 121 between the outer circumferential surface of the sheath tube adjuster 200 and the inner circumferential surface of the extension portion 120. The locking assembly 700 includes a tightening member 710, and the tightening member 710 can have a certain elasticity, that is, an elastic tightening member 710. The tightening member 710 is disposed between the outer circumferential surface of the sheath tube adjuster 200 and the inner circumferential surface of the extension portion 120, that is, the tightening member 710 is disposed in the gap 121; in the locked position, the tightening member 710 expands radially along the sheath tube adjuster 200 and abuts between the outer circumferential surface of the sheath tube adjuster 200 and the inner circumferential surface of the extension portion 120 to fix the sheath tube adjuster 200 to the housing 100; in the unlocked position, the tightening member 710 contracts radially along the sheath tube adjuster 200 so that the sheath tube adjuster 200 can rotate threadedly relative to the housing 100. In the locked position, the tightening member 710 expands and abuts against the sheath tube adjuster 200 and the extension portion 120 of the housing 100 on both sides thereof, and the locking of the sheath tube adjuster 200 to the housing 100 is achieved by increasing the friction force. At this time, the sheath tube adjuster 200 is fixed and cannot rotate threadedly relative to the housing 100. On the contrary, in the unlocked position, when the tightening member 710 contracts radially along the sheath tube adjuster 200, the friction force is reduced and the unlocking of the sheath tube adjuster 200 from the housing 100 is achieved. In addition, in the locked state, the tightening member 710 expands and abuts against the sheath tube adjuster 200 and the extension portion 120 of the housing 100 on both sides thereof, and can also play a sealing role to prevent external moisture and other substances from entering the ultrasonic probe 10 therefrom.

[0058] Please refer to Figure 2, in some embodiments, the locking assembly 700 includes a locking sleeve 720. The locking sleeve 720 is sleeved on the outer circumferential surface of the extension portion 120 and is threadedly connected to the extension portion 120. The locking sleeve 720 can move to the locking position and the unlocking position. In the locking position, the locking sleeve 720 approaches and presses the expansion member 710. The expansion member 710 expands radially along the sheath tube adjuster 200 and abuts between the outer circumferential surface of the sheath tube adjuster 200 and the inner circumferential surface of the extension portion 120 to fix the sheath tube adjuster 200 to the housing 100. In the unlocking position, the locking sleeve 720 moves away from the expansion member 710, and the expansion member 710 contracts radially along the sheath tube adjuster 200, so that the sheath tube adjuster 200 can rotate threadedly relative to the housing 100. In the locking position, the locking sleeve 720 approaches and presses the expansion member 710, and when the expansion member 710 expands, it abuts against the extension portion 120 of the sheath tube adjuster 200 and the housing 100 on both sides thereof. Conversely, in the unlocking position, the locking sleeve 720 moves away from the expansion member 710, and the expansion member 710 contracts radially along the sheath tube adjuster 200.

[0059] Further, as Figure 2 shown, in some embodiments, the locking sleeve 720 includes a pressing portion 722 and a sleeve body 721. The sleeve body 721 is sleeved on the outer circumferential surface of the extension portion 120 and is threadedly connected to the extension portion 120. One end of the pressing portion 722 is connected to the edge of the sleeve body 721 and is disposed at an angle with the sleeve body 721. The other end of the pressing portion 722 extends in a direction approaching the outer circumferential surface of the sheath tube adjuster 200, and the pressing portion 722 is used to press the expansion member 710.

[0060] Furthermore, as Figure 2 shown, in some embodiments, one end of the pressing portion 722 abuts against the outer circumferential surface of the sheath tube adjuster 200. This can minimize the gap between the pressing portion 722 and the outer circumferential surface of the sheath tube adjuster 200 and prevent external moisture and other substances from entering.

[0061] Furthermore, in some embodiments, the pressing portion 722 extends in a ring shape along the circumferential direction of the sleeve body 721. The expansion member 710 extends in a ring shape along the circumferential direction of the sheath tube adjuster 200. The ring-shaped expansion member 710 increases the contact area between it and the outer circumferential surface of the sheath tube adjuster 200. It can not only generate greater friction and locking effect in the locked state, but also play a better sealing effect.

[0062] Specifically, as Figure 2As shown, in some of these embodiments, the locking assembly 700 further includes a retaining ring 730 disposed between the pressing portion 722 and the expansion member 710. In the locked position, the pressing portion 722 presses the expansion member 710 through the retaining ring 730. The retaining ring 730 can be adapted to and fully abut against the annular expansion member 710, providing a better limiting and pressing effect on the expansion member 710, enhancing the locking effect of the expansion member 710 on the sheath adjusting member 200 and the housing 100 in the locked position, and can cooperate with the expansion member 710 to produce a better sealing effect in the locked state.

[0063] More specifically, as Figure 2 shown, in some of these embodiments, the locking assembly 700 further includes a washer 740 sleeved on the sheath adjusting member 200 and located on the side of the expansion member 710 opposite to the pressing portion 722. In the locked position, in the direction in which the expansion member 710 is pressed, the washer 740 and the retaining ring 730 are respectively located on opposite sides of the expansion member 710, which can provide a better pressing effect on the expansion member 710, causing the expansion member 710 to deform and expand as much as possible along the radial direction of the sheath adjusting member 200, thereby increasing the friction force, ensuring the locking effect between the sheath adjusting member 200 and the housing 100, and preventing the expansion member 710 from being pressed into the threads.

[0064] Please refer to Figure 2 , in some of these embodiments, a sealing groove 111 is further provided on the outer circumferential surface of the housing 110, a sealing ring 112 is provided in the sealing groove 111, and one end of the sleeve body 721 away from the pressing portion 722 extends into the sealing groove 111 and abuts against the sealing ring 112. The sealing ring 112 can seal the gap between the groove wall of the sealing groove 111 and the sleeve body 721 of the locking sleeve 720. The groove wall of the sealing groove 111 can provide a certain limiting effect on the structure of the sleeve body 721 of the locking sleeve 720. And in the locked position, the sleeve body 721 penetrates deeper into the sealing groove 111 and presses the sealing ring 112, causing the sealing ring 112 to deform to provide a better sealing effect at this location.

[0065] Please refer to Figure 3, in some embodiments, an avoidance groove 131 is further provided on the outer circumferential surface of the housing 110. One end of the sleeve body 721 away from the extrusion part 722 extends into the avoidance groove 131. A limiting groove 7211 is provided on the circumferential surface of the sleeve body 721, and a sealing ring 112 is provided in the limiting groove 7211. The groove wall of the avoidance groove 131 covers the limiting groove 7211, and the sealing ring 112 abuts between the groove wall of the limiting groove 7211 and the groove wall of the avoidance groove 131. The sleeve body 721 of the locking sleeve 720 is sleeved on the outer circumferential surface of the housing 110, and there may be some gaps between the two, and there is a possibility that moisture enters the interior of the housing 110 through these gaps and erodes the components therein; while the setting of this embodiment can solve the foregoing problems. One end of the sleeve body 721 away from the extrusion part 722 extends into the avoidance groove 131, and at the same time, the limiting groove 7211 also extends into the avoidance groove 131. Therefore, the groove wall of the avoidance groove 131 covers the limiting groove 7211 and the sealing ring 112 therein, and the sealing ring 112 can abut between the groove wall of the avoidance groove 131 and the groove wall of the limiting groove 7211, so that external moisture and the like cannot enter through this, achieving a sealing effect; in addition, the sleeve body 721 of the locking sleeve 720 is threadedly connected to the outer circumferential surface of the housing 110. When the locking sleeve 720 is rotated, the sleeve body 721 will also move along the axial direction of the housing 110. If the sleeve body 721 is moved in the direction close to the limiting groove 7211, the avoidance groove 131 can also provide an avoidance space for the extension of the end of the sleeve body 721; in other words, such a structural setting not only achieves a sealing effect but also leaves enough space for the movement of the sleeve body 721 of the locking sleeve 720.

[0066] Further, as Figure 3 shown, in some embodiments, the outer shell 100 further includes a sealing part 130 connected to the housing 110. The sealing part 130 is spaced from the outer circumferential surface of the housing 110 to form the avoidance groove 131. The avoidance groove 131 faces one end of the sleeve body 721 away from the extrusion part 722, and the avoidance groove 131 can provide an avoidance space for the movement of the sleeve body 721 in the axial direction of the housing 110.

[0067] Please refer to Figure 1 , in some embodiments, the ultrasonic probe 10 further includes an elastic sleeve 810. The elastic sleeve 810 can be a soft rubber sleeve. The elastic sleeve 810 is fixedly sleeved outside the sheath tube adjusting member 200 and is located at one end of the sheath tube adjusting member 200 away from the outer shell 100. The elastic sleeve 810 can play a certain protective role for the sheath tube adjusting member 200, and can also be used as a starting point when operating the sheath tube adjusting member 200 to rotate relative to the housing 110 of the outer shell 100, improving the operation convenience.

[0068] Specifically, as Figure 1As shown, in some of the embodiments, a limiting protrusion is further formed on the outer circumferential surface of the sheath tube adjusting member 200, and a corresponding limiting recess 811 is formed on the elastic sleeve 810. The elastic sleeve 810 is press-fitted on the sheath tube adjusting member 200 and the limiting protrusion is snapped into the limiting recess 811. Such a structural arrangement can improve the connection reliability between the sheath tube adjusting member 200 and the elastic sleeve 810 while making the gap between the sheath tube adjusting member 200 and the elastic sleeve 810 as small as possible, which is beneficial to sealing.

[0069] Specifically, as Figure 2 shown, in some of the embodiments, the ultrasonic probe 10 further includes a sealing ring 820 and a pressing sleeve 830 disposed within the sheath tube adjusting member 200. The outer surface of the pressing sleeve 830 and the inner surface of the sheath tube adjusting member 200 can be fixed by means such as bonding, welding, snap connection, or threaded connection. The sealing ring 820 is sleeved on the outer circumferential surface of the rotating shaft 400, and the sealing ring 820 abuts between the outer circumferential surface of the rotating shaft 400 and the inner circumferential surface of the pressing sleeve 830 to form a dynamic seal, ensuring the seal between the pressing sleeve 830 and the rotating shaft when the pressing sleeve 830 moves relative to the rotating shaft. In addition, the provision of the sealing ring 820 can, while achieving a sealing effect, prevent mutual wear between the outer circumferential surface of the rotating shaft 400 and the inner circumferential surface of the pressing sleeve 830, and improve the service life of the ultrasonic probe 10.

[0070] The sheath tube 300 passes through the sheath tube adjusting member 200 and is sleeved on the outer circumferential surface of the pressing sleeve 830. Further, an opening substantially in a trumpet shape is formed at the end of the sheath tube adjusting member 200 facing the rotating shaft 400. The sheath tube 300 is sleeved on the front tapered surface of the pressing sleeve and extends into the opening. The front tapered surface of the pressing sleeve 830 is used to press the sheath tube 300 to prevent the sheath tube 300 from loosening from the sheath tube adjusting member 300, ensuring the stability of the sheath tube 300. Specifically, as Figure 2 shown, in some of the embodiments, the ultrasonic probe 10 further includes a waterproof cap 870. The waterproof cap 870 is press-fitted through a shaft hole to cover one end of the housing 100 provided with the male connector 850, playing a waterproof role.

[0071] Specifically, as Figure 2 shown, in some of the embodiments, the ultrasonic probe 10 further includes a bearing 840. The bearing 840 is sleeved on the rotating shaft 400 and is located between the inner circumferential surface of the housing 100 and the outer circumferential surface of the rotating shaft 400.

[0072] Specifically, as Figure 1 and Figure 6As shown, in some of these embodiments, the ultrasound probe 10 further includes a lever mounting seat 890 disposed inside the cylinder and a lever 880 connected to the lever mounting seat 890. The lever 880 can be connected to the output end of the power device to transmit power.

[0073] Specifically, as Figure 2 shown, in some of these embodiments, the ultrasound probe 10 further includes a male connector 850. The male connector 850 can be a Lemo connector. The male connector 850 is disposed along the axial direction of the rotating shaft 400 on the side of the rotating shaft 400 away from the catheter 500. A receiving cavity 410 is formed through the rotating shaft 400. The ultrasound probe 10 further includes a signal line 860. One end of the signal line 860 extends into the catheter 500 to be connected to the ultrasonic transducer 600, and the other end of the signal line 860 passes through the receiving cavity 410 to be connected to the male connector 850.

[0074] In addition, as Figure 7 shown, the present application further provides an ultrasonic endoscope system, which includes: a probe driver 20, an ultrasound host 30, a display device 40, and the ultrasound probe 10 as described in any of the above embodiments. The driving end of the probe driver 20 is connected to the lever 880. The lever 880 drives the rotating shaft 400 to rotate. The ultrasonic signal obtained by the ultrasonic transducer 200 is transmitted into the ultrasound host 30 through a male connector 840 (which can be a Lemo connector), and an ultrasonic image is generated through signal processing. The display device 40 is used to display the ultrasonic image.

[0075] Since the above endoscopic ultrasound system includes the ultrasound probe 10 described in any of the above embodiments, the endoscopic ultrasound system also has at least the following beneficial effects: when adjusting the relative position of the sheath tube 300 and the catheter shaft 500, the locking assembly can be moved to the unlocked position at this time. At this time, the sheath tube adjuster 200 is movably connected to the housing 100, and the sheath tube adjuster 200 can move relative to the housing 100 and synchronously drive the sheath tube 300 to move forward or backward relative to the catheter shaft 500, so that the ultrasonic transducer 600 at the other end 520 of the sheath tube 300 and the catheter shaft 500 maintains a relatively reasonable position, that is, the sheath tube 300 does not interfere with the ultrasonic transducer 600 at the other end 520 of the catheter shaft 500, and the ultrasonic transducer 600 can be properly aligned with the transparent end of the sheath tube 300 to work properly. When the relative position of the sheath tube 300 and the catheter shaft 500 is adjusted in place, the locking assembly can be moved to the locked position. At this time, the position of the sheath tube adjuster 200 is locked, and the sheath tube 300 driven by the sheath tube adjuster 200 cannot move either, that is, the relative position of the sheath tube 300 and the catheter shaft 500 is fixed, which can prevent the sheath tube 300 from shifting relative to the ultrasonic transducer 600 at the other end 520 of the spring during the working process. It should be emphasized that during the entire telescopic adjustment process of the sheath tube 300, any components of the ultrasound probe 10 do not need to be disassembled or removed. Simply adjust the locking assembly to the unlocked state, and then the sheath tube adjuster 200 can be directly operated to drive the sheath tube 300 to move relative to the catheter shaft 500. Compared with the traditional scheme mentioned above, not only is the operation more convenient when adjusting the sheath tube 300, but also there is no need for disassembly, which is beneficial to maintaining the overall sealing performance of the ultrasound probe 10 and protecting each component inside the ultrasound probe 10.

[0076] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0077] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

[0078] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0079] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0080] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "connected to", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0081] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0082] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0083] In the description of this specification, the description with reference to the terms "an embodiment", "other embodiments", etc. means that the specific features, structures, materials or features described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

Claims

1. An ultrasonic probe, characterized in that, Comprising: A housing; A sheath tube adjusting member connected to the housing; A sheath tube, one end of which is fixed to the sheath tube adjusting member; A rotating shaft rotatably disposed within the housing; A bellows, one end of which is connected to the rotating shaft, and the other end of which extends into the sheath tube; An ultrasonic transducer disposed at the other end of the bellows and within the sheath tube; A locking assembly capable of moving relative to the sheath tube adjusting member to an unlocked position and a locked position; in the locked position, the locking assembly locks the sheath tube adjusting member; In the unlocked position, the sheath tube adjusting member is movably connected to the housing, and the sheath tube adjusting member can drive the sheath tube to advance or retreat along the axial direction of the bellows.

2. The ultrasonic probe according to claim 1, characterized in that, One end of the sheath tube adjusting member is disposed within the housing, and at least a part of the inner circumferential surface of the housing is threadedly connected to at least a part of the outer circumferential surface of the sheath tube adjusting member. In the unlocked position, the sheath tube adjusting member can rotate relative to the housing in a threaded manner and drive the sheath tube to advance or retreat along the axial direction of the bellows.

3. The ultrasonic probe according to claim 2, characterized in that, The sheath tube adjusting member includes a main body and an adjusting end connected to the main body. The adjusting end protrudes radially outward from the outer circumferential surface of the main body. The adjusting end extends into the housing, and the outer circumferential surface of the adjusting end is threadedly connected to the inner circumferential surface of the housing; the ultrasonic probe further includes a limiting member fixed to the housing, and at least a part of the limiting member is located on one side of the adjusting end close to the main body. The limiting member is used to limit the movement of the adjusting end in the axial direction of the housing; Alternatively, the sheath tube adjusting member includes a main body and an adjusting end connected to the main body. The adjusting end protrudes radially outward from the outer circumferential surface of the main body. The adjusting end extends into the housing, and the outer circumferential surface of the adjusting end is threadedly connected to the inner circumferential surface of the housing; the ultrasonic probe further includes a limiting member. A limiting hole is formed through the side circumferential surface of the housing. The limiting member is inserted into the housing through the limiting hole, and one end of the limiting member is located on one side of the adjusting end close to the main body. The limiting member is used to limit the movement of the adjusting end in the axial direction of the housing.

4. The ultrasonic probe according to claim 2, characterized in that, The housing includes a housing body and an extension portion connected to the edge of the housing body. One end of the sheath tube adjusting member extends into the housing body and is threadedly connected to the inner circumferential surface of the housing body. The other end of the sheath tube adjusting member is disposed outside the housing body, and there is a gap between the outer circumferential surface of the sheath tube adjusting member and the inner circumferential surface of the extension portion.

5. The ultrasonic probe according to claim 4, characterized in that, The locking assembly includes a swelling member disposed within the gap; in the locked position, the swelling member expands radially along the sheath tube adjusting member and abuts between the outer circumferential surface of the sheath tube adjusting member and the inner circumferential surface of the extension portion to fix the sheath tube adjusting member to the housing; in the unlocked position, the swelling member contracts radially along the sheath tube adjusting member to enable the sheath tube adjusting member to rotate relative to the housing in a threaded manner.

6. The ultrasonic probe according to claim 5, characterized in that, The locking assembly includes a locking sleeve, which is sleeved on the outer circumference of the extension portion and threadedly connected to the extension portion. The locking sleeve can move to the locking position and the unlocking position. In the locking position, the locking sleeve approaches and squeezes the expansion piece, and the expansion piece expands along the radial direction of the sheath adjusting piece and abuts between the outer circumference of the sheath adjusting piece and the inner circumference of the extension portion to achieve the fixation of the sheath adjusting piece and the shell; in the unlocking position, the locking sleeve is away from the expansion piece, and the expansion piece contracts along the radial direction of the sheath adjusting piece to enable the sheath adjusting piece to rotate relative to the shell thread.

7. The ultrasonic probe according to claim 6, characterized in that, The locking sleeve includes an extrusion portion and a sleeve body, wherein the sleeve body is sleeved on the outer circumference of the extension portion and is threadedly connected to the extension portion, one end of the extrusion portion is connected to the edge of the sleeve body, and the other end of the extrusion portion is extended toward the direction close to the outer circumference of the sheath adjustment member, and the extrusion portion is used to extrude the tightening member.

8. The ultrasonic probe according to claim 7, characterized in that, The extrusion portion extends in a ring shape along the circumference of the sleeve body; And / or, the expansion member extends in a ring shape along the circumference of the sheath adjustment member; And / or, one end of the extrusion portion abuts against the outer peripheral surface of the sheath tube adjustment member; And / or, the locking assembly further comprises a pressing ring, wherein the pressing ring is arranged between the extrusion portion and the expansion member, and when in the locking position, the extrusion portion presses the expansion member through the pressing ring.

9. The ultrasonic probe according to claim 7, characterized in that, The locking assembly further comprises a washer, which is sleeved on the sheath adjusting member and is located at a side of the expansion member facing away from the extrusion portion.

10. The ultrasonic probe according to claim 7, characterized in that, The shell body is also provided with a sealing groove, in which a sealing ring is arranged, and one end of the sleeve body away from the extrusion portion extends into the sealing groove and abuts against the sealing ring.

11. The ultrasonic probe according to claim 7, characterized in that, The shell is also provided with an avoidance groove, and one end of the sleeve away from the extrusion portion extends into the avoidance groove. A limiting groove is provided on the side circumference of the sleeve, and a sealing ring is provided in the limiting groove, and the sealing ring abuts between the groove wall of the limiting groove and the groove wall of the avoidance groove.

12. The ultrasonic probe according to claim 1, characterized in that, The ultrasonic probe further comprises an elastic sleeve, which is arranged outside the sheath adjusting member and is located at an end of the sheath adjusting member away from the housing; And / or, the ultrasonic probe further comprises a sealing ring and a pressing sleeve arranged in the sheath adjusting member, the outer surface of the pressing sleeve is fixed to the inner surface of the sheath adjusting member, the sealing ring is sleeved on the outer circumference of the rotating shaft, the sealing ring abuts between the outer circumference of the rotating shaft and the inner circumference of the pressing sleeve, the sheath is passed through the sheath adjusting member and sleeved on the outer circumference of the spring tube, and the pressing sleeve is used to press and fix the sheath in the sheath adjusting member; And / or, the spring tube is inserted into the sheath tube adjustment member, and the spring tube can drive the ultrasonic transducer to rotate in the sheath tube under the drive of the rotating shaft; And / or, the ultrasonic probe further comprises a bearing, wherein the bearing is sleeved on the rotating shaft and located between the inner circumference of the housing and the outer circumference of the rotating shaft; And / or, the ultrasonic probe also includes a male connector, which is arranged on a side of the rotating shaft away from the spring tube along the axial direction of the rotating shaft, and a accommodating cavity is opened through the rotating shaft. The ultrasonic probe also includes a signal line, one end of the signal line extends into the spring tube to be connected to the ultrasonic transducer, and the other end of the signal line is passed through the accommodating cavity to be connected to the male connector.

13. An endoscopic ultrasound system, characterized in that, include: A probe driver, an ultrasound host, a display device, and an ultrasound probe as described in any one of claims 1 to 12, wherein the driving end of the probe driver is connected to a lever, the lever drives the rotating shaft to rotate, the ultrasonic signal obtained by the ultrasonic transducer is transmitted to the ultrasound host through a Ramer connector, and an ultrasound image is generated after signal processing, and the display device is used to display the ultrasound image.

Images