Bent snake bone and probe

Abstract

The utility model discloses a bent snake bone and a probe. The bent snake bone comprises a plurality of snake bone joints which are sequentially arranged at intervals in the length extending direction of the bent snake bone, and snake bone connecting sections which are integrally connected between every two adjacent snake bone joints. First notch grooves for providing bending spaces for the snake bone joints are respectively formed in two opposite sides of the snake bone connecting section of two adjacent sections of snake bone joints; each snake bone joint is provided with a first through hole formed in the length extending direction of the bent snake bone, and the multiple first through holes in the multiple snake bone joints extend in the length direction of the bent snake bone to form a first channel. And the first adjusting rope penetrates through the first channel and is used for driving the bent snake bone to bend. The multiple snake bone joints are connected into the integrated structure through the snake bone connecting sections, bending of the bent snake bone can be achieved through the snake bone connecting sections between the snake bone joints, and the problem that the connecting positions of the snake bone joints are prone to abrasion due to rotation during bending is solved. Moreover, the structure is simple, and the assembly operation is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a curved snake bone and a probe. Background Art

[0002] At present, ultrasound probes are usually used when performing ultrasound examinations on patients. Transesophageal probes and intracardiac ultrasound probes are commonly used to insert into the human body to examine the health of the heart. Their structures usually consist of an insertion part inserted into the human body and an operating part left outside the human body.

[0003] The insertion part includes the frontmost ultrasonic probe tip, the bending part connected thereto, and the slender hose part connected to the bending part. The bending part can usually be controlled by the operating part outside the human body to bend in two or four relative directions. Since the bending part is directly and fixedly connected to the frontmost ultrasonic probe tip, the bending part will bend with the ultrasonic probe tip when it bends, thereby achieving the function of finding the desired location. The bending part is usually an assembly composed of multiple similar parts, and its structure is similar to the joints of snake bones, so it is also called a "snake bone structure". The snake bone structure can achieve arc bending within a certain range, and its bending movement can be adjusted and controlled.

[0004] For the snake bone structure, the curved snake bone structure in the prior art is as follows Figure 1 and Figure 2 As shown:

[0005] exist Figure 1 In the embodiment, the snake bone structure includes a plurality of snake bone joints 50, which are assembled by splicing a plurality of snake bone joints 50.

[0006] exist Figure 2 In the figure, the structure of the snake bone joint 50 has a small round hole 62, a rectangular notch 65, a rectangular notch 67, a rotation reference protrusion structure 54, and an installation reference groove 52. There are two small round holes 62, located at the edges of both sides of the joint 50, for inserting a slender rope. The rectangular notch 65 is relatively wide, and is used to pass a rectangular flat metal shrapnel through the snake bone joint. The flat metal shrapnel can provide elasticity and a certain strength for the bending movement of the entire snake bone structure. The rectangular notch 67 is relatively flat, and is used to pass a slender strip of soft circuit board connecting the operating end and the tip of the ultrasonic probe through it, for transmitting ultrasonic signals. The rotation reference protrusion structure 54 is used for splicing and installation with the installation reference grooves 52 of other snake bone joints 50, and is used to provide a rotation reference for the rotation of the snake bone joint when the snake bone is bent.

[0007] In this bending serpentine structure, since the connection between the serpentine joints 50 is completed by the mutual engagement of the rotation reference protrusion structure 54 and the installation reference groove 52, when the serpentine structure is bent, the rotational movement of the two adjacent serpentine joints is frictional rotation around the center line of the rotating shaft formed at the engagement point. Since the surfaces of the protrusion structure and the groove structure of the serpentine joint are not easy to be polished smooth, there is friction damping in the relative rotation of the two serpentine joints at the engagement point, which will increase the force required for the bending of the serpentine structure and accelerate the wear of the serpentine joint engagement point. Utility Model Content

[0008] Therefore, the technical problem to be solved by the utility model is to overcome the defects of the prior art that the bending snake bone structure is not easy to bend due to friction damping between adjacent snake bone joints when bending, and the snake bone joints are prone to wear, thereby providing a bending snake bone and a probe.

[0009] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0010] A curved snake bone, comprising:

[0011] The curved snake bone comprises a plurality of snake bone joints arranged in sequence and at intervals along the length extension direction of the curved snake bone, and a snake bone connecting section integrally connected between two adjacent snake bone joints; first notches are formed on opposite sides of the snake bone connecting section between two adjacent snake bone joints to provide bending space for the snake bone joints; each snake bone joint is provided with a first through hole arranged along the length extension direction of the curved snake bone, and a plurality of the first through holes on the plurality of snake bone joints extend along the length direction of the curved snake bone to form a first channel;

[0012] The first adjusting rope is passed through the first channel and is used for driving the bending snake bone to bend.

[0013] Furthermore, the first channel passes through the first notch groove.

[0014] Furthermore, the curved snake bone is in the shape of an elongated elliptical column.

[0015] Furthermore, the two first notch grooves on both sides of the snake-bone connecting section have the same shape and are symmetrically arranged along the snake-bone connecting section.

[0016] Furthermore, in a longitudinal section perpendicular to the long axis of the curved snake bone, the first notch groove is V-shaped.

[0017] Furthermore, there are two first through holes on each section of the snake bone joint, and two groups of the first through holes corresponding to the positions on the multiple sections of the snake bone joints form two first channels, and the two first channels respectively pass through the first notch grooves on both sides of the snake bone connecting section, and there are two first adjustment ropes, and each of the first adjustment ropes is passed through one of the first channels.

[0018] Furthermore, the two first through holes are both arranged at peripheral positions off-center of the snake bone joint.

[0019] Furthermore, a second through hole is provided inside the snake bone joint and passes through the curved snake bone along the length extension direction of the curved snake bone, and the second through hole is used for allowing a flexible conductive element to pass through.

[0020] Furthermore, the bottom of the first notch groove close to the snake bone connecting section is connected to the second through hole.

[0021] Furthermore, the snake bone joint includes two snake bone joint main sections and a snake bone joint connecting section integrally connected between the two snake bone joint main sections, and the two snake bone joint main sections are formed with second notch grooves on opposite sides of the snake bone joint connecting section to provide bending space for the snake bone joint main sections; the snake bone joint connecting section and the snake bone connecting section are alternately arranged on the outer peripheral wall of the curved snake bone; each section of the snake bone joint connecting section is provided with a third through hole arranged along the length extension direction of the curved snake bone, and the multiple third through holes on multiple sections of the snake bone joint connecting sections extend along the length direction of the curved snake bone to form a third channel; a second adjustment rope for driving the curved snake bone to bend is passed through the third channel.

[0022] Furthermore, the third channel passes through the second notch groove.

[0023] Furthermore, the third channel passes through the snake-bone connecting section.

[0024] Furthermore, the bottom of the second notch groove is connected to the second through hole.

[0025] Furthermore, it includes an operating part and an insertion part, the insertion part is suitable for inserting into the interior of the target to be measured; the insertion part includes an insertion tube connected to the proximal end of the operating part, a bending mechanism connected to the distal end of the insertion tube, and a probe tip connected to the distal end of the bending mechanism; the bending mechanism is the bending snake bone structure described above.

[0026] Furthermore, a flexible protective film is provided on the periphery of the plurality of serpentine joints, the distal end of the flexible protective film is sealedly connected to the probe tip, and the proximal end of the flexible protective film is sealedly connected to the distal end of the insertion tube.

[0027] Furthermore, the probe is an ultrasonic probe, and an ultrasonic transducer is disposed in the tip of the probe.

[0028] The technical solution of the utility model has the following advantages:

[0029] 1. The bending snake bone provided by the utility model has multiple snake bone joints connected into an integrated structure through snake bone connecting sections. The bending of the bending snake bone can be achieved by relying on the snake bone connecting sections between the snake bone joints. Compared with the method in the prior art in which the bending snake bone is assembled together by multiple independent multiple snake bone joints through a concave-convex rotation matching structure, the problem of the connection of the snake bone joints being easily worn due to rotation when the bending snake bone is bent is avoided. In addition, in the process of assembling the bending snake bone structure, it is convenient to use a clamp to fix the bending snake bone into a straight state. When the bending snake bone is in a straight state, the first through holes on the multiple snake bone joints are all in the same straight line, and the first adjustment rope can be passed through all the first through holes arranged in the same straight line at one time. Compared with the method in the prior art in which the adjustment rope is passed through the snake bone joints one by one, the assembly operation is simpler, and the assembly efficiency of the bending snake bone structure can be greatly improved.

[0030] 2. The bending snake bone provided by the utility model is in the shape of an elongated elliptical column, which is beneficial to improving the bending deformation ability of the bending snake bone.

[0031] 3. The curved snake bone provided by the utility model has a structural design in which the first notches on both sides have the same shape and are symmetrically arranged, which makes it convenient to use a tool to cut the snake bone material at one time to obtain a curved snake bone with a desired shape, making the processing simpler.

[0032] 4. The bending snake bone provided by the utility model has a first notch groove in a V shape, which can provide a larger bending space for the snake bone joint.

[0033] 5. The bending snake bone provided by the utility model has a first through hole arranged at a peripheral position off-center of the snake bone joint, and only a small force needs to be applied to the first adjustment rope to pull the bending snake bone to bend, which is easy to operate.

[0034] 6. The bending snake bone provided by the utility model has a second through hole in the bending snake bone, and a flexible conductive element can pass through the second through hole. The proximal end of the conductive element can be electrically connected to the proximal component, and the proximal end can be electrically connected to the distal component, so as to realize signal transmission between the proximal component and the distal component. In addition, the structural design of the second through hole reduces the overall structural strength of the bending snake bone and improves the bending deformation ability of the bending snake bone.

[0035] 7. The structural design of the bending snake bone provided by the utility model, in which the first notch groove and the second through hole are connected, is conducive to further improving the deformation ability of the bending snake bone.

[0036] 8. The bending snake bone provided by the utility model comprises a snake bone joint comprising two snake bone joint main body sections and a snake bone joint connecting section integrally connected between the two snake bone joint main body sections, and the two snake bone joint main body sections are provided with second notch grooves on opposite sides of the snake bone joint connecting section to provide bending space for the snake bone joint main body sections. With such an arrangement, the bending snake bone can be bent in four different directions.

[0037] 9. In the bending snake bone provided by the utility model, the third channel runs through the second through hole, which is beneficial to improving the bending deformation ability of the bending snake bone.

[0038] 10. The probe provided by the utility model has a bending mechanism that adopts the above-mentioned bending snake bone and has all the advantages of the above-mentioned bending snake bone.

[0039] 11. The probe provided by the utility model has both ends of the flexible protective film sealed and connected, so that the curved snake bone can be completely sealed and wrapped, further improving the safety and reliability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a structural schematic diagram of a snake bone structure in the prior art;

[0042] Figure 2 It is a schematic diagram of the structure of the snake bone joint in the prior art;

[0043] Figure 3 This is a schematic diagram of the structure of the probe in the first embodiment of the utility model;

[0044] Figure 4 This is a schematic diagram of the structure of the curved snake bone structure in the first embodiment of the present utility model;

[0045] Figure 5 It is a partial schematic diagram of the curved snake bone structure in the first embodiment of the utility model;

[0046] Figure 6 It is a cross-sectional view of the curved snake bone structure in the first embodiment of the utility model;

[0047] Figure 7 It is a front view of the curved snake bone structure in the first embodiment of the utility model;

[0048] Figure 8It is a top view of the curved snake bone structure in the first embodiment of the utility model;

[0049] Fig. 9 This is a schematic diagram of the three-dimensional structure of the curved snake bone structure in the second embodiment of the present utility model;

[0050] Fig.10 It is a schematic diagram of the partial structure of the curved snake bone structure in the second embodiment of the utility model;

[0051] Fig.11 It is a schematic diagram of the partial structure of the curved snake bone in the second embodiment of the utility model.

[0052] Explanation of the accompanying drawings: 1. curved snake bone; 11. snake bone joint; 11a. snake bone joint main section; 11b. snake bone joint connecting section; 11c. second notch groove; 111. first through hole; 112. second through hole; 113. third through hole; 12. first adjustment rope; 13. first notch groove; 14. snake bone connecting section; 15. second adjustment rope; 3. insertion tube; 4. probe tip. DETAILED DESCRIPTION

[0053] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The term "distal end" refers to the end far from the operator, and the term "proximal end" refers to the end close to the operator.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Embodiment 1

[0057] The first embodiment of the present invention provides a probe, which can be a transesophageal probe, an intracardiac ultrasound probe or an endoscopic probe. Figure 3 As shown, the probe includes an operating part and an insertion part, the operating part is an operating part located outside the human body, and the insertion part is a detection part suitable for inserting into the interior of the measured object. The insertion part includes an insertion tube 33 connected to the proximal end of the operating part, a bending mechanism connected to the distal end of the insertion tube 33, and a probe tip 44 connected to the distal end of the bending mechanism. The bending mechanism is flexible, and the bending mechanism is hard enough but flexible enough to allow the operator to position the probe tip 44 at the distal end of the probe to the relevant anatomical structure (such as the esophagus) at the desired penetration depth; the bending mechanism is thin enough to allow the probe tip 44 to be placed in the relevant anatomical structure, and allows the bending mechanism to remain in place for a long time without causing problems or excessive discomfort. The structure of the operating part is well known to those skilled in the relevant art, and is therefore not described in detail here. Similarly, the mechanism for transmitting the operator's control actuation to the probe tip 44 through the bending mechanism is also well known and is not described here.

[0058] In some embodiments, the probe is an ultrasonic probe, and an ultrasonic transducer for transmitting and receiving ultrasonic signals is disposed in the probe tip 44. The bending mechanism is specifically a bending snake bone structure.

[0059] like Figure 4As shown in FIG. 8 , the curved snake bone is a bidirectional curved snake bone. The curved snake bone includes a curved snake bone 1 and a first adjustment rope 12. The curved snake bone 1 includes a snake bone joint 11 and a snake bone connecting section 14. The snake bone joint 11 is sequentially arranged with multiple sections at intervals along the length extension direction of the curved snake bone 1. The snake bone connecting section 14 is integrally connected between two adjacent snake bone joints 11. Two adjacent snake bone joints 11 are respectively formed with first notch grooves 13 on opposite sides of the snake bone connecting section 14 to provide bending space for the snake bone joints 11; each snake bone joint 11 is provided with a first through hole 111 arranged along the length extension direction of the curved snake bone 1, and the multiple first through holes 111 on the multiple snake bone joints 11 extend along the length direction of the curved snake bone 1 to form a first channel, and the first channel passes through the first notch groove 13. The first adjustment rope 12 is passed through the first channel, and the bending of the curved snake bone 1 can be achieved by pulling the first adjustment rope 12.

[0060] The bending snake bone 1 is in the shape of an oblong cylinder as a whole, and there are two first through holes 111 on each snake bone joint 11, and the two first through holes 111 are arranged at the peripheral position of the snake bone joint 11 that is off-center. The cross section of the bending snake bone 1 without the first notch groove 13 is elliptical, and the two first through holes 111 are located on the short axis of the elliptical cross section on the cross section of the bending snake bone 1, and the two first through holes 111 are symmetrically arranged along the long axis of the elliptical cross section. Two groups of first through holes 111 form two first channels, and there are two first adjustment ropes 12, each of which is inserted into one of the first channels. Pulling the two first adjustment ropes 12 can realize the bending of the bending snake bone 1 in two different directions.

[0061] A second through hole 112 is provided at the inner center of the curved serpentine 1 and passes through the curved serpentine 1 along the length extension direction of the curved serpentine 1. The second through hole 112 is used for a flexible conductive element to pass through. The flexible conductive element is a soft circuit board, the proximal end of which is electrically connected to the operating part, and the distal end of which is electrically connected to the probe tip 4. Two through holes 112 are provided on the curved serpentine 1, and the soft circuit board can pass through the two through holes 112. The soft circuit board can realize signal transmission between the proximal operating part and the distal probe tip 4.

[0062] The second through hole 112 penetrates the multi-section snake bone joint 11 and the multi-section snake bone connecting section 14 at the same time, and the first notch groove 13 is arranged near the bottom of the groove of the snake bone connecting section 14 and is connected with the second through hole 112. The snake bone connecting section 14 is divided into two parts by the second through hole 112, and the two parts of the snake bone connecting section 14 are integrally connected between the two sections of the snake bone joint 11. The cross-section of the second through hole 112 is rectangular, and the cross-section of the first through hole 111 is circular. The cross-sectional area of ​​the second through hole 112 is much larger than the cross-sectional area of ​​the first through hole 111. The second through hole 112 is located at the center of the snake bone joint 11, and the first through hole 111 is located at the edge of the snake bone joint 11 that is off-center. The cross-sectional area of ​​the second through hole 112 is designed to be larger, which is not only convenient for the soft circuit board to pass through, but also can reduce the amount of material of the bending snake bone 1, increase the proportion of the hollow part in the bending snake bone 1, and thus improve the bending deformation ability of the bending snake bone 1.

[0063] In some embodiments, the first notch groove 13 is V-shaped, so that the first notch groove 13 can provide a larger bending space for the snake bone joint 11. The first notch groove 13 is specifically formed by a tool cutting out a portion of the snake bone material on opposite sides of the elliptical cylinder of the curved snake bone 1. This curved snake bone has a simple structure, and only requires a tool to cut out a portion of the snake bone material during processing, which can significantly reduce the processing difficulty of the curved snake bone 1 and reduce the manufacturing cost.

[0064] In some embodiments, the two first notches 13 on both sides of the snake bone connection section 14 have the same shape and are symmetrically arranged along the snake bone connection section 14, and the multiple first notches 13 on the same side are arranged at equal intervals. This arrangement, on the one hand, can make the bending ability of the bending snake bone 1 in two directions the same, which is convenient for bending control operation; on the other hand, when processing the shape of the bending snake bone 1, it is only necessary to use a row of tools of a specific shape to radially cut the bending snake bone 1 along the radial direction of the bending snake bone 1, so that the shape processing of the bending snake bone 1 can be completed at one time, and the processing technology is simpler and the manufacturing cost is low.

[0065] In some embodiments, the curved snake-bone structure further includes a flexible protective film (not shown) sleeved on the periphery of the multi-segment snake-bone joint 11, the distal end of the flexible protective film is sealed with the probe tip 4 by glue, and the proximal end of the flexible protective film is sealed with the distal end of the insertion tube 3 by glue. The flexible protective film is specifically a thin-walled soft rubber. Both ends of the flexible protective film are sealed with glue, so that the curved snake-bone structure can be completely sealed and wrapped, further improving the safety and reliability during use.

[0066] In this bending snake bone structure, the multi-section snake bone joints 11 are connected into an integrated structure through the snake bone connecting sections 14. The bending of the bending snake bone 1 can be achieved by relying on the flexible characteristics of the snake bone connecting sections 14 between the snake bone joints 11. The first notch groove 13 provides bending space for the snake bone joints 11. Compared with the method in the prior art where the bending snake bone is assembled by multiple independent multi-section snake bone joints 11 through a concave-convex rotation matching structure, the problem of the connection of the snake bone joints 11 being easily worn due to rotation when the bending snake bone 1 is bent is avoided. In addition, in the process of assembling the bending snake bone structure, it is convenient to use a clamp to fix the bending snake bone 1 into a straight state. When the bending snake bone 1 is in a straight state, the first through holes 111 on the multi-section snake bone joints 11 are all in the same straight line, and the first adjustment rope 12 can be passed through all the first through holes 111 arranged in the same straight line at one time. Compared with the method in the prior art where the adjustment rope is passed through the snake bone joints one by one, the assembly operation is simpler, and the assembly efficiency of the bending snake bone structure can be greatly improved.

[0067] Embodiment 2

[0068] like Fig. 9 The bending snake bone shown in -11 is different from the embodiment 1 in that the bending snake bone structure is a four-way bending snake bone structure, the bending snake bone structure is an elongated cylindrical structure as a whole, and the bending snake bone structure can be bent along four different directions.

[0069] On the basis of the bidirectional bending snake bone structure of the above-mentioned embodiment 1, a pair of second notches 11c arranged opposite to each other are additionally provided on the peripheral wall of each snake bone joint 11. The snake bone joint 11 comprises two snake bone joint main body sections 11a and a snake bone joint connecting section 11b integrally connected between the two snake bone joint main body sections 11a. The snake bone joint connecting section 11b and the snake bone connecting section 14 are arranged alternately on the peripheral wall of the bending snake bone 1; the two snake bone joint main body sections 11a are formed with second notches 11c on opposite sides of the snake bone joint connecting section 11b to provide bending space for the snake bone joint main body sections 11a. Two third through holes 113 arranged along the length extension direction of the bending snake bone are provided on each snake bone joint connecting section 11b. The multiple third through holes 113 on the multiple snake bone joint connecting sections 11b extend along the length direction of the bending snake bone 1 to form a third channel, and the third channel passes through the second notch 11c and the snake bone connecting section 14; each third channel is penetrated with a second adjustment rope 15 for driving the bending snake bone 1 to bend.

[0070] It should be noted here that the snake bone connecting segment 14 and the snake bone joint connecting segment 11b, the first notch groove 13 and the second notch groove 11c, the first adjustment rope 12 and the second adjustment rope 15 are actually exactly the same structure, and are only distinguished for the convenience of description. Since the snake bone joint 11 is an integrated structure, under different section divisions of the curved snake bone 1, the positions of the snake bone connecting segment 14 and the snake bone joint connecting segment 11b, and the positions of the first notch groove 13 and the second notch groove 11c can be interchanged.

[0071] Specifically, the third through hole 113 passes through the snake bone connecting section 14, and the bottom of the second notch groove 11c is connected to the second channel. Such an arrangement can further improve the four-way bending deformation capability of the curved snake bone structure.

[0072] This bending snake bone structure is provided with a pair of first notch grooves 13 and a pair of second notch grooves 11c in two groups of different relative directions of the bending snake bone 1, and the first notch grooves 13 and the pair of second notch grooves 11c are staggered in the radial direction of the bending snake bone 1, and two first through holes 111 and two third through holes 113 are provided on the snake bone joint 11, two first adjustment ropes 11 are passed through two first channels formed by the two groups of first through holes 111, and two second adjustment ropes 15 are passed through the third channels formed by the two groups of third through holes 113. In this way, the bending of the bending snake bone 1 in four different directions can be achieved through the two first adjustment ropes 12 and the two second adjustment ropes 15.

[0073] In summary, the curved snake bone structure and probe provided by the embodiment of the utility model mainly have the following beneficial effects:

[0074] 1. The bending snake bone 1 is of an integrated structure, and the bending of the bending snake bone 1 is achieved by utilizing the flexibility of the snake bone connecting section 14 between the snake bone joints 11. The notch groove is utilized to provide bending space for the snake bone joints 11, thereby avoiding the problem that the connection of the snake bone joints 11 is easily worn due to rotation during bending.

[0075] 2. In the process of assembling the curved snake bone structure, it is convenient to use a clamp to fix the curved snake bone 1 into a straight state. When the curved snake bone 1 is in a straight state, the through holes on the multi-section snake bone joints 11 are all in the same straight line, and the adjustment rope can be passed through all the through holes arranged in the same straight line at one time. Compared with the prior art method of passing the adjustment rope through the snake bone joints one by one, the assembly operation is simpler, which can greatly improve the assembly efficiency of the curved snake bone structure 1.

[0076] 3. The structure of the curved snake bone structure is simple, and the processing time required is less than that of processing several snake bone joints, which makes production more convenient and the manufacturing cost lower.

[0077] 4. Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention of the utility model.

Claims

1. A curved snake bone, applied to a probe, characterized in that: include: A curved snake bone (1) comprises a plurality of snake bone joints (11) arranged in sequence and spaced apart along the length extension direction of the curved snake bone (1), and a snake bone connecting section (14) integrally connected between two adjacent snake bone joints (11); first notch grooves (13) are respectively formed on opposite sides of the snake bone connecting section (14) of the two adjacent snake bone joints (11) to provide bending space for the snake bone joints (11); each of the snake bone joints (11) is provided with a first through hole (111) arranged along the length extension direction of the curved snake bone (1); and the plurality of first through holes (111) on the plurality of snake bone joints (11) extend along the length direction of the curved snake bone (1) to form a first channel; A first adjustment rope (12) is passed through the first channel and is used to drive the bending snake bone (1) to bend.

2. The curved snake bone according to claim 1, characterized in that: The first passage passes through the first notch groove (13).

3. The curved snake bone according to claim 1, characterized in that: The curved snake bone (1) is in the shape of an elongated elliptical column.

4. The curved snake bone according to claim 3, characterized in that: The two first notch grooves (13) on both sides of the snake bone connecting section (14) have the same shape and are symmetrically arranged along the snake bone connecting section (14).

5. The curved snake bone according to claim 3, characterized in that: The first notch groove (13) is V-shaped.

6. The curved snake bone according to claim 1, characterized in that: Two first through holes (111) are provided on each section of the snake bone joint (11), and two groups of the first through holes (111) corresponding to the positions on the multiple sections of the snake bone joints (11) form two first channels, and the two first channels respectively pass through the first notch grooves (13) on both sides of the snake bone connecting section (14), and there are two first adjustment ropes (12), and each of the first adjustment ropes (12) is passed through one of the first channels.

7. The curved snake bone according to claim 6, characterized in that: The two first through holes (111) are both arranged at peripheral positions off-center of the snake bone joint (11).

8. The curved snake bone according to claim 1, characterized in that: A second through hole (112) is provided inside the curved snake bone (1) and passes through the curved snake bone (1) along the length extension direction of the curved snake bone (1). The second through hole (112) is used for allowing a flexible conductive element to pass through.

9. The curved snake bone according to claim 8, characterized in that: The bottom of the first notch groove (13) is connected to the second through hole (112).

10. The curved snake bone according to claim 8, characterized in that: The snake bone joint (11) comprises two sections of snake bone joint main body sections (11a) and a snake bone joint connecting section (11b) integrally connected between the two sections of the snake bone joint main body sections (11a); the two sections of the snake bone joint main body sections (11a) are provided with second notch grooves (11c) on opposite sides of the snake bone joint connecting section (11b) for providing bending space for the snake bone joint main body sections (11a); the snake bone joint connecting section (11b) and the snake bone connecting section (14) are arranged alternately on the outer peripheral wall of the curved snake bone (1); each section of the snake bone joint connecting section (11b) is provided with a third through hole (113) arranged along the length extension direction of the curved snake bone (1); the plurality of third through holes (113) on the plurality of sections of the snake bone joint connecting sections (11b) extend along the length direction of the curved snake bone (1) to form a third channel; a second adjustment rope (15) for driving the curved snake bone (1) to bend is passed through the third channel.

11. The curved snake bone according to claim 10, characterized in that: The third passage passes through the second notch groove (11c).

12. The curved snake bone according to claim 10, characterized in that: The third channel passes through the snake bone connecting section (14).

13. The curved snake bone according to claim 10, characterized in that: The bottom of the second notch groove (11c) is connected to the second through hole (112).

14. A probe, characterized in that: The invention comprises an operating part and an insertion part, wherein the insertion part is suitable for being inserted into the interior of a target to be measured; the insertion part comprises an insertion tube (3) connected to the proximal end of the operating part, a bending mechanism connected to the distal end of the insertion tube (3), and a probe tip (4) connected to the distal end of the bending mechanism; the bending mechanism is a bending snake bone as described in any one of claims 1 to 13.

15. The probe according to claim 14, characterized in that The outer periphery of the multiple sections of the snake bone joints (11) is covered with a flexible protective film, the distal end of the flexible protective film is sealedly connected to the probe tip (4), and the proximal end of the flexible protective film is sealedly connected to the distal end of the insertion tube (3).

16. The probe according to claim 15, characterized in that The probe is an ultrasonic probe, and an ultrasonic transducer is arranged inside the probe tip (4).

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