A medical probe

Abstract

The utility model discloses a medical probe, include: casing, curved portion, fixed shaft is installed in the casing, at least one pivot, can be rotatoryly installed in fixed shaft along the own central axis, and is equipped with transmission part, when the pivot is at least two, and the transmission part of different pivot is along the axial interval of fixed shaft and is arranged, at least one transmission part, and the transmission part of one pivot is at least with one transmission part transmission connection, and each transmission part is connected with the different parts of curved portion respectively to when the pivot rotates, through corresponding transmission part drive curved portion bending to the preset direction, and different transmission part can drive curved portion bending to different direction. Can realize the motion transmission between more than one transmission part and transmission part, and then through make different pivot rotate, can make different transmission part drive curved portion bending to different direction, thereby can expand the bending direction of medical probe curved portion, to facilitate clinical operation, good satisfy the clinical demand.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a medical probe. Background Technology

[0002] Medical probes have wide applications in the medical field. During use, the insertion part of the medical probe is inserted into the human body to detect or treat the location of lesions. To better detect the desired location, the curved part of the insertion part needs to be flexible.

[0003] However, in related technologies, the bending direction of the curved part of the medical probe is limited, which brings many inconveniences to clinical operation.

[0004] Therefore, how to expand the bending direction of the curved part of the medical probe to better meet clinical needs is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a medical probe that can extend the bending direction of the curved portion of the medical probe.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A medical probe, comprising:

[0008] case;

[0009] Bending section;

[0010] A fixed shaft is installed in the housing;

[0011] At least one rotating shaft is rotatably mounted on the fixed shaft about its own central axis and is provided with a transmission part. When there are at least two rotating shafts, the transmission parts of different rotating shafts are spaced apart along the axial direction of the fixed shaft.

[0012] At least one transmission component is provided, and the transmission part of one of the rotating shafts is connected to at least one of the transmission components. Each of the transmission components is connected to different parts of the curved portion so that when the rotating shaft rotates, the curved portion is driven to bend in a preset direction by the corresponding transmission component. Different transmission components can drive the curved portion to bend in different directions.

[0013] Optionally, it also includes:

[0014] A bracket, installed in the housing, is provided with:

[0015] The first receiving cavity is provided within which at least a portion of the transmission part of each of the rotating shafts and the corresponding transmission member are disposed.

[0016] Optionally, the first receiving cavity is provided with at least one limiting groove, which corresponds one-to-one with the transmission member, and at least a portion of the transmission member is disposed in the corresponding limiting groove.

[0017] Optionally, the number of rotating shafts is set to two, namely a first rotating shaft and a second rotating shaft; the first rotating shaft passes through the hollow interior of the fixed shaft and includes a protruding part extending out of the bottom of the fixed shaft, and the transmission part of the first rotating shaft is disposed in the protruding part; the second rotating shaft is sleeved on the outer periphery of the fixed shaft.

[0018] Optionally, the bottom of the first receiving cavity is provided with a limiting plane for abutting and limiting the bottom end of the first rotating shaft;

[0019] The fixed shaft is provided with a limiting shoulder inside, which is used to axially limit the first rotating shaft in a direction away from the limiting plane.

[0020] Optionally, the outer periphery of the fixed shaft is provided with a limiting step for abutting and limiting the bottom end of the second rotating shaft;

[0021] The bracket is provided with a stop part, which is used to stop and limit the second rotating shaft in a direction away from the limiting step.

[0022] Optionally, the bracket includes a first bracket and a second bracket, the first receiving cavity is disposed in the first bracket, and the second bracket is provided with a second receiving cavity for accommodating at least a portion of the fixed shaft and each of the rotating shafts.

[0023] Optionally, the bottom end of the second bracket abuts against the top end of the first bracket, and a first sealing element is provided between the abutting surfaces of the two.

[0024] A second sealing element is provided between the fixed shaft and the first rotating shaft, between the fixed shaft and the second rotating shaft, and between the second rotating shaft and the second bracket.

[0025] Optionally, the housing includes a first cover and a second cover, which together surround the outer periphery of the first support and the second support.

[0026] Optionally, each of the said shafts is connected to a rotating component for bearing a load.

[0027] Optionally, the transmission part includes a gear part, and the transmission component includes a rack that meshes with the gear part and a first transmission rope connected to the rack, the first transmission rope being connected to the bending part.

[0028] Optionally, the transmission part includes a groove, and the transmission member includes a second transmission rope, which is wound around the groove and has one end connected to the groove and the other end connected to the bend.

[0029] Optionally, the number of rotating shafts is a multiple of 2, the number of transmission components is twice the number of rotating shafts, the transmission components are paired up, and the two pairs of transmission components are connected to the transmission part of the same rotating shaft, and the two pairs of transmission components are symmetrically arranged with respect to the corresponding rotating shaft; the connection positions of each transmission component and the curved part are distributed along the circumferential direction of the curved part, and the connection positions of the two pairs of transmission components and the curved part are symmetrically arranged about the center of the circumference on the diameter of the circumference.

[0030] The medical probe provided by this utility model, when the rotating shaft rotates relative to the fixed shaft around its own central axis, the rotating shaft drives the transmission part to rotate together. Through the transmission cooperation between the transmission part and the transmission component, the transmission component drives the curved part to bend in a preset direction, realizing the adjustment of the bending direction and bending angle of the curved part. Since there is at least one rotating shaft on the fixed shaft, when there are at least two rotating shafts, the transmission parts of different rotating shafts are arranged at intervals along the axial direction of the fixed shaft, and the transmission part of each rotating shaft is connected to at least one transmission component. Each transmission component is connected to different parts of the curved part. Therefore, the motion transmission between multiple pairs of transmission parts and transmission components can be realized. Furthermore, by rotating different rotating shafts, different transmission components can drive the curved part to bend in different directions, thereby expanding the bending direction of the curved part of the medical probe to facilitate clinical operation and well meet clinical needs. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 A schematic diagram of a transmission part and a transmission component of a medical probe provided in a specific embodiment of this utility model.

[0033] Figure 2 A cross-sectional view of the assembly of the fixed shaft, rotating shaft and transmission components disclosed in one embodiment;

[0034] Figure 3 This is a schematic diagram of another structure for the transmission part and transmission components of a medical probe.

[0035] Figure 4A cross-sectional view of the assembly of the fixed shaft, rotating shaft, and transmission components disclosed in another embodiment;

[0036] Figure 5 This is a schematic diagram of the structure of a medical probe provided in a specific embodiment of the present invention;

[0037] Figure 6 for Figure 5 The main view;

[0038] Figure 7 for Figure 5 Top view.

[0039] Figure label:

[0040] 1-Bending part; 2-Fixed shaft; 21-Limiting shoulder; 22-Limiting step; 3-Rotating shaft; 31-Transmission part; 311-Gear part; 312-Groove part; 32-First rotating shaft; 33-Second rotating shaft; 4-Transmission component; 41-Rack; 42-First transmission rope; 43-Second transmission rope; 5-First bracket; 51-First receiving cavity; 511-Limiting plane; 52-Limiting groove; 6-Second bracket; 71-First seal; 72-Second seal; 81-First cover; 82-Second cover; 9-Rotating component; 10-Insertion part; 20-Insertion tube; 30-Handle; 40-Button; 50-Cable. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0042] The core of this invention is to provide a medical probe that can extend the bending direction of the curved portion of the medical probe.

[0043] Please refer to Figure 1 ,

[0044] This utility model provides a medical probe, including a housing, a bent portion 1, a fixed shaft 2, at least one rotating shaft 3, and at least one transmission component 4. The fixed shaft 2 is installed in the housing; the rotating shaft 3 is rotatably mounted on the fixed shaft 2 about its own central axis, and the rotating shaft 3 is provided with a transmission part 31 (e.g., Figure 2As shown), when there are at least two rotating shafts 3, the transmission parts 31 of different rotating shafts 3 are spaced apart along the axial direction of the fixed shaft 2; the transmission part 31 of one rotating shaft 3 is connected to at least one transmission member 4, and each transmission member 4 is connected to different parts of the bending part 1, so that when the rotating shaft 3 rotates, the corresponding transmission member 4 drives the bending part 1 to bend in a preset direction, and different transmission members 4 can drive the bending part 1 to bend in different directions.

[0045] It is understandable that when the rotating shaft 3 rotates relative to the fixed shaft 2 around its own central axis, the rotating shaft 3 drives the transmission part 31 to rotate together. Through the transmission cooperation between the transmission part 31 and the transmission component 4, the transmission component 4 drives the curved part 1 to bend in a preset direction, thereby adjusting the bending direction and bending angle of the curved part 1. Since the fixed shaft 2 is provided with at least one rotating shaft 3, when there are at least two rotating shafts 3, the transmission parts 31 of different rotating shafts 3 are spaced apart along the axial direction of the fixed shaft 2, and the transmission part 31 of one rotating shaft 3 is connected to at least one transmission component 4. Each transmission component 4 is connected to different parts of the curved part 1. Therefore, the motion transmission between multiple pairs of transmission parts 31 and transmission components 4 can be realized. Furthermore, by rotating different rotating shafts 3, different transmission components 4 can drive the curved part 1 to bend in different directions, thereby expanding the bending direction of the curved part 1 of the medical probe to facilitate clinical operation and well meet clinical needs.

[0046] Furthermore, in order to improve the smoothness and reliability of motion transmission between the transmission part 31 and the transmission component 4, in some embodiments, the medical probe also includes a bracket, which is installed in the housing and has a first receiving cavity 51 for accommodating at least part of the transmission part 31 and the corresponding transmission component 4 of each rotating shaft 3.

[0047] In other words, at least a portion of the transmission part 31 and the corresponding transmission component 4 of each rotating shaft 3 are located in the first receiving cavity 51. The first receiving cavity 51 has a hiding and protective function for at least a portion of each transmission part 31 and the corresponding transmission component 4, thereby preventing impurities from entering the mating area between the transmission part 31 and the corresponding transmission component 4, which helps to ensure the reliability of motion transmission between the transmission part 31 and the corresponding transmission component 4.

[0048] Furthermore, in some embodiments, the first receiving cavity 51 is provided with at least one limiting groove 52, and the limiting groove 52 corresponds one-to-one with the transmission member 4, with at least a portion of the transmission member 4 disposed in the corresponding limiting groove 52. It can be understood that at least a portion of the transmission member 4 is slidably engaged with the corresponding limiting groove 52, allowing the transmission member 4 to slide within the corresponding limiting groove 52. This utilizes the limiting groove 52 to slide and limit the corresponding transmission member 4, causing the transmission member 4 to move along the direction or range defined by the limiting groove 52. This improves the smoothness of the movement of the transmission member 4 and the correctness of its direction of movement, thus benefiting the improvement of the smoothness of the bending of the bent portion 1 and the correctness of its bending direction.

[0049] It should be noted that this embodiment does not limit the specific structure of the first bracket 5 and its specific connection method with the housing and / or the fixed shaft 2, as long as it can be connected to at least one of the housing and the fixed shaft 2, and has the above-mentioned first receiving cavity 51 and at least one limiting groove 52.

[0050] Furthermore, the specific number of rotating shafts 3 is not limited in the above embodiments, and those skilled in the art can set it according to actual needs. It is understood that the more rotating shafts 3 there are, the more transmission parts 31 there are, the more corresponding transmission components 4 there are, and the more bending directions of the bending part 1 there are. Those skilled in the art can set the rotating shafts 3 according to the specific bending directions required.

[0051] Please combine Figure 1 and Figure 2 In some embodiments, the number of rotating shafts 3 is set to two, namely a first rotating shaft 32 and a second rotating shaft 33. The first rotating shaft 32 passes through the hollow interior of the fixed shaft 2 and includes an extension extending out of the bottom of the fixed shaft 2. The transmission part 31 of the first rotating shaft 32 is provided in the extension. The second rotating shaft 33 is sleeved on the outer periphery of the fixed shaft 2.

[0052] It is understandable that the interior of the fixed shaft 2 is hollow to facilitate the installation of the first rotating shaft 32. In other words, this embodiment utilizes the hollow interior space and the outer peripheral space of the fixed shaft 2 to install two rotating shafts 3 on the fixed shaft 2. The first rotating shaft 32 passes through the hollow interior of the fixed shaft 2, and the second rotating shaft 33 is sleeved on the outside of the fixed shaft 2. This facilitates the installation of the first rotating shaft 32 and the second rotating shaft 33. Moreover, the first rotating shaft 32 extends from the bottom of the fixed shaft 2 so that the transmission part 31 of the first rotating shaft 32 is located outside the fixed shaft 2, which facilitates the connection between the transmission part 31 of the first rotating shaft 32 and the corresponding transmission component 4.

[0053] For further information, please refer to the following: Figure 2In order to facilitate the axial limiting of the first rotating shaft 32 and prevent the first rotating shaft 32 from moving axially, in some embodiments, the bottom of the first receiving cavity 51 is provided with a limiting plane 511, which is used to abut and limit the bottom end of the first rotating shaft 32; the fixed shaft 2 is provided with a limiting shoulder 21 inside, which is used to axially limit the first rotating shaft 32 in a direction away from the limiting plane 511.

[0054] In other words, the bottom end of the first rotating shaft 32 abuts against the limiting plane 511, which prevents the first rotating shaft 32 from moving axially toward the limiting plane 511. The limiting shoulder 21 can abut against the other end of the first rotating shaft 32 or against the limiting protrusion on the outer periphery of the first rotating shaft 32, thereby preventing the first rotating shaft 32 from moving axially away from the limiting plane 511. That is, in this embodiment, the limiting plane 511 and the limiting shoulder 21 are used to axially limit the first rotating shaft 32, so that the axial position of the first rotating shaft 32 is fixed and cannot move axially, thereby preventing the first rotating shaft 32 from axially shifting.

[0055] Additionally, please continue to refer to Figure 2 In order to facilitate the axial limiting of the second rotating shaft 33 and prevent the second rotating shaft 33 from moving axially, in some embodiments, the outer periphery of the fixed shaft 2 is provided with a limiting step 22, which is used to abut and limit the bottom end of the second rotating shaft 33; the bracket is provided with a stop part, which is used to stop and limit the second rotating shaft 33 in the direction away from the limiting step 22.

[0056] In other words, this embodiment uses a limiting step 22 on the outer periphery of the fixed shaft 2 to axially limit the bottom end of the second rotating shaft 33, preventing the second rotating shaft 33 from moving axially towards the limiting step 22. Additionally, a stop is provided on the bracket to axially limit the other end of the second rotating shaft 33, preventing it from moving axially away from the limiting step 22. The stop can abut against the top end of the second rotating shaft 33 or a limiting protrusion on its outer periphery to achieve axial limitation of the second rotating shaft 33. That is, this embodiment uses the limiting step 22 and the stop to axially limit the second rotating shaft 33, fixing its axial position and preventing axial movement, thus preventing axial displacement of the second rotating shaft 33.

[0057] In addition, to better protect the rotating shaft 3, in some embodiments, the bracket includes a first bracket 5 and a second bracket 6. A first receiving cavity 51 is provided in the first bracket 5, and the second bracket 6 is provided with a second receiving cavity for accommodating at least a portion of the fixed shaft 2 and each rotating shaft 3. That is, this embodiment divides the bracket into a first bracket 5 and a second bracket 6, so that the first bracket 5 and the second bracket 6 respectively support the corresponding structures, which facilitates structural design and assembly. At least a portion of the fixed shaft 2 and each rotating shaft 3 is accommodated in the second receiving cavity. The second receiving cavity has a hiding and protective function for at least a portion of the fixed shaft 2 and each rotating shaft 3. Together with the first receiving cavity 51, it can better hide and protect each rotating shaft 3, which is beneficial to prevent impurities from entering the transmission part 31 and the transmission component 4 at the transmission engagement point, affecting the transmission, etc. In addition, for example, the stop part mentioned above is provided in the second bracket 6. Further, please continue to refer to Figure 2 To prevent impurities from entering the transmission joint between the transmission part 31 and the transmission component 4, in some embodiments, the bottom end of the second bracket 6 abuts against the top end of the first bracket 5, and a first sealing element 71 is provided between their abutting surfaces; second sealing elements 72 are respectively provided between the fixed shaft 2 and the first rotating shaft 32, between the fixed shaft 2 and the second rotating shaft 33, and between the second rotating shaft 33 and the second bracket 6. In other words, this embodiment provides sealing elements at the connection points of the first bracket 5 and the second bracket 6, the connection points of the fixed shaft 2 and the first rotating shaft 32, the connection points of the fixed shaft 2 and the second rotating shaft 33, and the connection points of the second rotating shaft 33 and the second bracket 6, thereby sealing these connections and preventing impurities from entering the transmission joint between the transmission part 31 and the transmission component 4 from these connections, thus affecting transmission and improving transmission stability and accuracy.

[0058] For further information, please refer to the following: Figure 2 In some embodiments, the housing includes a first cover 81 and a second cover 82, which together surround the outer periphery of the first bracket 5 and the second bracket 6. That is, by providing the first cover 81 and the second cover 82 on the outer periphery of the first bracket 5 and the second bracket 6, this embodiment utilizes the first cover 81 and the second cover 82 to conceal and protect the first bracket 5 and the second bracket 6, further improving the reliability of the internal components of the first cover 81 and the second cover 82. Furthermore, the first cover 81 and the second cover 82, as integral encapsulation structures for the first bracket 5, the second bracket 6, the fixed shaft 2, and each rotating shaft 3, also facilitate the overall assembly of this part of the structure.

[0059] Additionally, please continue to refer to Figure 2To facilitate the rotation of each rotating shaft 3, in some embodiments, each rotating shaft 3 is connected to a rotating component 9 for bearing load. That is, in this embodiment, by connecting each rotating shaft 3 to a rotating component 9, an external force is applied to the rotating component 9, causing the rotating component 9 to drive the corresponding rotating shaft 3 to rotate. The rotating component 9 can be any structure extending outside the housing for easy operation, facilitating the application of rotational force to the rotating component 9, thereby conveniently driving the rotating shaft 3 to rotate. It should be noted that this embodiment does not limit the specific structure of the rotating component 9; for example, the rotating component 9 can be a turntable or a rotating handle, etc.

[0060] Furthermore, in the above embodiments, the specific structure of the transmission part 31 and the transmission member 4 is not limited, as long as the transmission cooperation between the two can be realized, so that the transmission member 4 can convert the rotation of the transmission part 31 into the bending motion of the bending part 1.

[0061] like Figure 1 As shown, in some embodiments, the transmission part 31 includes a gear part 311, and the transmission member 4 includes a rack 41 meshing with the gear part 311 and a first transmission rope 42 connected to the rack 41. The first transmission rope 42 is connected to the bending part 1. That is to say, in this embodiment, motion transmission is achieved through the meshing of the gear part 311 and the rack 41. It can be understood that when the rotating shaft 3 rotates, it drives the transmission part 31 to rotate together, thereby causing the gear part 311 to rotate. Through the meshing of the gear part 311 and the rack 41, the rack 41 is driven to move, thereby causing the rack 41 to drive the first transmission rope 42 to move together, and then causing the first transmission rope 42 to pull the bending part 1 to bend. This structure is simple and easy to implement.

[0062] Please refer to Figure 3 and Figure 4 Of course, in other embodiments, the following approach can also be adopted: the transmission part 31 includes a groove 312, and the transmission member 4 includes a second transmission rope 43. The second transmission rope 43 is wound around the groove 312, with one end connected to the groove 312 and the other end connected to the bending part 1. It is understood that when the rotating shaft 3 rotates, it drives the transmission part 31 to rotate as well, thereby causing the groove 312 to rotate. This causes the second transmission rope 43 to wrap around the groove 312. The groove 312 has a limiting effect on the second transmission rope 43, preventing it from coming out of the groove 312. Simultaneously, when one end of the second transmission rope 43 wraps around the groove 312, the other end of the second transmission rope 43 pulls the bending part 1 to bend. Therefore, this approach can also achieve the bending of the bending part 1 and the adjustment of the bending angle.

[0063] It should be noted that the specific materials of the first transmission rope 42 and the second transmission rope 43 are not limited in this embodiment of the present invention. It is understood that, in order for the first transmission rope 42 and the second transmission rope 43 to be able to pull the bending part 1 to bend, the first transmission rope 42 and the second transmission rope 43 are incompressible. In some embodiments, the first transmission rope 42 and the second transmission rope 43 are both steel wire ropes.

[0064] In addition, in the above embodiments, the specific number and arrangement of the transmission components 4 are not limited, as long as the transmission components 4 can drive the bending part 1 to bend.

[0065] In some embodiments, the number of rotating shafts 3 is a multiple of 2, and the number of transmission members 4 is twice the number of rotating shafts 3. The transmission members 4 are paired, with each pair of transmission members 4 connected to the transmission part 31 of the same rotating shaft 3. The pairs of transmission members 4 are symmetrically arranged with respect to their corresponding rotating shafts 3. The connection positions of each transmission member 4 with the curved portion 1 are distributed along the circumferential direction of the curved portion 1, and the connection positions of each pair of transmission members 4 with the curved portion 1 are symmetrically arranged about the center of the circumference on the diameter of the circumference. In other words, this embodiment utilizes at least two pairs of transmission members 1 to drive the curved portion 1 to bend in at least two opposite directions, thereby achieving multi-angle adjustment of the curved portion 1.

[0066] In addition, in order to ensure the uniformity of the multi-angle adjustment of the bending part 1, the connection positions of each transmission component 4 and the bending part 1 can be evenly distributed along the circumferential direction of the bending part 1.

[0067] For example, there are two rotating shafts 3 and four transmission components 4. The connection positions of the two transmission components 4 and the bending part 1 connected to the transmission part 31 of the same rotating shaft 3 are 180 degrees apart. The angle between any two adjacent connection positions of each transmission component 4 and the bending part 1 is 90 degrees. In this way, when one of the rotating shafts 3 is rotated, the bending part 1 can bend in the left and right directions; when the other rotating shaft 3 is rotated, the bending part 1 can bend in the up and down directions, thereby realizing the bending part 1 bending and adjusting the angle in four directions: up, down, left, and right.

[0068] Of course, in some other embodiments, the number of rotating shafts 3 can also be one, and the number of transmission components 4 can be two. That is, the two transmission components 4 are used to drive the bending part 1 to adjust the angle in opposite directions.

[0069] It should be noted that the above embodiments do not limit the structure and function of other parts of the medical probe. Those skilled in the art can refer to relevant technologies. For example, the medical probe in this embodiment is a transesophageal ultrasound probe; of course, it could also be a probe for other functions. For example, ... Figure 5 , Figure 6 and Figure 7As shown, the medical probe also includes an insertion part 10, an insertion tube 20, a handle 30, a button 40, and a cable 50, etc. The structure of each part will not be described in detail in this article.

[0070] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0071] The medical probe provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A medical probe, characterized in that, include: case; Bend (1); A fixed shaft (2) is installed in the housing; At least one rotating shaft (3) is rotatably mounted on the fixed shaft (2) about its own central axis and is provided with a transmission part (31). When there are at least two rotating shafts (3), the transmission parts (31) of different rotating shafts (3) are spaced apart along the axial direction of the fixed shaft (2). At least one transmission member (4), the transmission part (31) of one of the rotating shafts (3) is connected to at least one of the transmission members (4), and each of the transmission members (4) is connected to different parts of the bent part (1) so that when the rotating shaft (3) rotates, the bent part (1) is driven to bend in a preset direction by the corresponding transmission member (4), and different transmission members (4) can drive the bent part (1) to bend in different directions.

2. The medical probe according to claim 1, characterized in that, Also includes: A bracket, installed in the housing, is provided with: The first receiving cavity (51) is provided with at least a portion of the transmission part (31) of each of the rotating shafts (3) and the corresponding transmission member (4).

3. The medical probe according to claim 2, characterized in that, The first receiving cavity (51) is provided with at least one limiting groove (52), which corresponds one-to-one with the transmission member (4), and at least a portion of the transmission member (4) is provided in the corresponding limiting groove (52).

4. The medical probe according to claim 2, characterized in that, The number of the rotating shafts (3) is set to two, namely the first rotating shaft (32) and the second rotating shaft (33); the first rotating shaft (32) passes through the hollow interior of the fixed shaft (2) and includes a protruding part extending out of the bottom of the fixed shaft (2), and the transmission part (31) of the first rotating shaft (32) is provided in the protruding part; the second rotating shaft (33) is sleeved on the outer periphery of the fixed shaft (2).

5. The medical probe according to claim 4, characterized in that, The bottom of the first receiving cavity (51) is provided with a limiting plane (511) for abutting and limiting the bottom end of the first rotating shaft (32); The fixed shaft (2) is provided with a limiting shoulder (21) inside, which is used to axially limit the first rotating shaft (32) in a direction away from the limiting plane (511).

6. The medical probe according to claim 4, characterized in that, The outer periphery of the fixed shaft (2) is provided with a limiting step (22) for abutting and limiting the bottom end of the second rotating shaft (33); The bracket is provided with a stop part for stopping and limiting the second rotating shaft (33) in a direction away from the limiting step (22).

7. The medical probe according to claim 4, characterized in that, The bracket includes a first bracket (5) and a second bracket (6), the first receiving cavity (51) is provided on the first bracket (5), and the second bracket (6) is provided with a second receiving cavity for accommodating at least a portion of the fixed shaft (2) and each of the rotating shafts (3).

8. The medical probe according to claim 7, characterized in that, The bottom end of the second bracket (6) abuts against the top end of the first bracket (5), and a first sealing element (71) is provided between the abutting surfaces of the two. A second seal (72) is provided between the fixed shaft (2) and the first rotating shaft (32), between the fixed shaft (2) and the second rotating shaft (33), and between the second rotating shaft (33) and the second bracket (6).

9. The medical probe according to claim 7, characterized in that, The housing includes a first cover (81) and a second cover (82), which surround the outer periphery of the first support (5) and the second support (6).

10. The medical probe according to claim 1, characterized in that, Each of the aforementioned shafts (3) is connected to a rotating component (9) for bearing load.

11. The medical probe according to any one of claims 1-10, characterized in that, The transmission part (31) includes a gear part (311), and the transmission member (4) includes a rack (41) meshing with the gear part (311) and a first transmission rope (42) connected to the rack (41), the first transmission rope (42) being connected to the bending part (1).

12. The medical probe according to any one of claims 1-10, characterized in that, The transmission part (31) includes a groove (312), and the transmission member (4) includes a second transmission rope (43). The second transmission rope (43) is wound around the groove (312), and one end of it is connected to the groove (312), and the other end is connected to the bending part (1).

13. The medical probe according to any one of claims 1-10, characterized in that, The number of the rotating shafts (3) is a multiple of 2, and the number of the transmission components (4) is twice the number of the rotating shafts (3). The transmission components (4) are paired up, and the two pairs of transmission components (4) are connected to the transmission part (31) of the same rotating shaft (3). The two pairs of transmission components (4) are symmetrically arranged with respect to the corresponding rotating shafts (3). The connection positions of each transmission component (4) and the bending part (1) are distributed along the circumferential direction of the bending part (1). The connection positions of the two pairs of transmission components (4) and the bending part (1) are symmetrically arranged about the center of the circumference on the diameter of the circumference.

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