Snake bone connecting structure and endoscope system

Abstract

The utility model relates to a snake bone connecting structure and an endoscope system. The endoscope system comprises a snake bone assembly, a capillary tube, an imaging module and a lighting module, the snake bone assembly comprises a plurality of joints which are sequentially connected in the length direction of the snake bone assembly, and a connecting groove is formed in the end face, away from the insertion end, of the joint close to the operation end; one end of the capillary tube is connected with the inner wall of the connecting groove in the end, close to the operation end, of the snake bone assembly, the connecting groove is formed in the bone joint close to the operation end, the outer wall of the capillary tube is connected with the inner wall of the connecting groove, and therefore the capillary tube cannot make contact with the part, provided with the receding groove, in the snake bone assembly, namely the weakest part in the snake bone assembly; therefore, the capillary tube is prevented from puncturing the weak skin of the snake bone assembly, the stability of the whole snake bone connecting structure is improved, and an endoscope system assembled and connected by using the snake bone connecting structure can work more stably in the body of a patient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a snake bone connecting structure and an endoscope system. BACKGROUND

[0002] An endoscope is a commonly used medical device. When in use, the endoscope enters the patient's body through a natural orifice or a surgically formed incision. After the endoscope is introduced into the organ to be detected, the doctor can directly observe the lesion of the relevant part.

[0003] In order to clearly and intuitively understand the lesion site and improve the accuracy of lesion diagnosis, the endoscope is combined with a snake bone. The orientation of the tip at the end of the snake bone is adjusted by controlling the direction change of the snake bone in the endoscope, so as to change the observation angle to accurately reach the lesion and treat the lesion of the relevant part. Therefore, the connection strength between the snake bone, the insertion tube, the connecting piece and the capillary tube must meet the requirements.

[0004] The endoscope generally includes a handle, an insertion tube, a snake bone and a tip. The handle is at one end of the insertion tube close to the operator, and the snake bone is at the other end of the insertion tube away from the operator. The distal end of the snake bone is connected to a tip device for observation and treatment operation.

[0005] In order to manipulate the endoscope inside the human body, the handle is generally pulled to pull the traction wire to control the snake bone to bend in different directions and limit the bending angle to adjust the orientation of the tip at the end of the snake bone. However, the edge of the snake bone made of plastic or the like is very thin, and the capillary tube is difficult to fix in the snake bone, and the direct connection mode is easy to be pierced by the capillary tube. CONTENT OF THE INVENTION

[0006] Therefore, it is necessary to provide a snake bone connecting structure and an endoscope system to solve the problems that the edge of the snake bone made of plastic or the like is very thin, the capillary tube is difficult to fix in the snake bone, and the direct connection mode is easy to be pierced by the capillary tube.

[0007] A snake bone connecting structure, both ends of the snake bone connecting structure are an operation end and an insertion end, and the snake bone connecting structure comprises a snake bone assembly and a capillary tube.

[0008] Both ends of the snake bone assembly along its length direction are an operation end and an insertion end, and the snake bone assembly comprises a plurality of bone segments connected in sequence along its length direction. The bone segment at the operation end is provided with a connecting groove on the end face away from the insertion end.

[0009] One end of the capillary tube is connected with the inner wall of the connecting groove.

[0010] The snake bone assembly in the snake bone connecting structure comprises a plurality of bone segments, each of which is provided with a bone hole in the length direction of the snake bone assembly, and the connecting groove of the bone segment close to the operation end is in communication with the bone hole. The bone segment is also provided with a plurality of first steel wire holes in the length direction of the snake bone assembly. The capillary tube is provided with an operation hole and a plurality of second steel wire holes in the length direction thereof. The operation end is connected with the bone hole through the operation hole and the insertion end. The instrument includes illumination, imaging and other modules. The plurality of first steel wire holes of adjacent bone segments are one-to-one corresponding. The plurality of first steel wire holes of the bone segment close to the operation end are one-to-one corresponding with the plurality of second steel wire holes. The steel wire is arranged in the first steel wire hole and the second steel wire hole in the length direction of the snake bone assembly, so that the steel wire passes through the plurality of bone segments and the capillary tube in sequence. One end of the steel wire close to the insertion end is connected with the bone segment close to the insertion end, so that the snake bone assembly can be bent in different directions by pulling different steel wires. The outer wall of the capillary tube is connected with the inner wall of the connecting groove by providing the connecting groove on the bone segment close to the operation end, so that the capillary tube does not contact the part of the snake bone assembly provided with the avoiding groove, that is, the weakest part of the snake bone assembly, thereby preventing the capillary tube from piercing the weak outer skin of the snake bone assembly, improving the stability of the entire snake bone connecting structure, and enabling the endoscope system assembled and connected by using the snake bone connecting structure to work more stably in the patient's body.

[0011] In an embodiment, the snake bone connecting structure further comprises a connecting portion which is radially arranged along the snake bone assembly, and the inner wall of the connecting groove of one end of the snake bone assembly close to the operation end is connected with the outer wall of one end of the capillary tube close to the insertion end.

[0012] In an embodiment, the connecting portion is a plurality of connecting pieces which are arranged around the circumference of the snake bone assembly, and the length direction of the connecting pieces is the length direction of the snake bone assembly.

[0013] In an embodiment, the connecting portion is a connecting tube, the outer wall of the connecting tube is connected with the inner wall of the connecting groove of one end of the snake bone assembly close to the operation end, and the inner wall of the connecting tube is connected with the outer wall of one end of the capillary tube close to the insertion end.

[0014] In an embodiment, the snake bone connecting structure further comprises an insertion tube which is sleeved on the outside of the capillary tube and connected with the capillary tube, and the insertion tube is used for supporting the snake bone connecting structure in the patient's body.

[0015] In an embodiment, the snake bone connecting structure further comprises a sleeve, the connecting portion partially extends out of the snake bone, the sleeve is sleeved on the connecting portion and one end of the insertion tube close to the insertion end, the connecting portion is connected with the inner wall of the sleeve, and the outer wall of the insertion tube is connected with the inner wall of the sleeve.

[0016] In an embodiment, the inner wall of the sleeve has a convex ring, the inner wall of the convex ring abuts against the outer wall of the capillary tube;

[0017] Along the length direction of the snake bone assembly, one side of the convex ring abuts against the end face of the insertion tube close to the insertion end, and the other side of the convex ring abuts against the end face of the connecting portion away from the insertion end.

[0018] In an embodiment, the snake bone connecting structure further comprises an adhesive, the capillary tube is welded with the connecting portion, and the connecting portion is bonded with the bone segments through the adhesive.

[0019] In an embodiment, the connecting portion and the inner wall of the sleeve are connected through the adhesive, and the outer wall of the insertion tube and the inner wall of the sleeve are connected through the adhesive.

[0020] An embodiment of the present application further provides an endoscope system, which comprises an imaging module, an illumination module and the snake bone connecting structure.

[0021] The imaging module and the illumination module are connected with the insertion end of the snake bone connecting structure.

[0022] The snake bone assembly in the above endoscope system comprises a plurality of bone segments, each bone segment is provided with a bone hole along the length direction of the snake bone assembly, the connecting groove of the bone segment close to the operation end is communicated with the bone hole, a plurality of first steel wire holes are further provided in the bone segment along the length direction of the snake bone assembly, the capillary tube is provided with an operation hole and a plurality of second steel wire holes along the length direction thereof, the plurality of first steel wire holes of adjacent bone segments are one-to-one corresponding, the plurality of first steel wire holes of the bone segment close to the operation end are one-to-one corresponding with the plurality of second steel wire holes, the steel wire is arranged in the first steel wire hole and the second steel wire hole along the length direction of the snake bone assembly, so that the steel wire sequentially passes through the plurality of bone segments and the capillary tube, one end of the steel wire close to the insertion end is connected with the bone segment close to the insertion end, so that the snake bone assembly can be bent in different directions by pulling different steel wires, the outer wall of the capillary tube is connected with the inner wall of the connecting groove by providing the connecting groove on the bone segment close to the operation end, so that the capillary tube does not contact the part of the snake bone assembly provided with the avoiding groove, i.e. the weakest part of the snake bone assembly, thereby preventing the capillary tube from piercing the weak outer skin of the snake bone assembly, improving the stability of the whole snake bone connecting structure, so that the orientations of the imaging module and the illumination module are more stable, and the endoscope system assembled and connected by using the snake bone connecting structure can work more stably in the patient's body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a snake-bone connection structure according to one embodiment.

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0025] Explanation of icon numbers:

[0026] 100-Snake bone connection structure;

[0027] 110 - Snake bone assembly; 111 - Bone joint; 112 - Connecting groove; 113 - Bone hole; 114 - First wire hole;

[0028] 120 - Connecting part; 121 - Capillary tube; 122 - Operating hole; 123 - Second wire hole;

[0029] 130 - Insertion tube;

[0030] 140 - Sleeve; 141 - Convex ring;

[0031] 210 - Operation end; 211 - Insertion end;

[0032] 220-steel wire. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if there are terms "a plurality of", the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In the present application, unless otherwise explicitly specified and limited, if there are terms "installation", "connection", "connection", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on" or "second feature", the meaning can 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 "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] It should be noted that if an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of description, and do not represent the only implementation.

[0039] Referring to Figure 1 , Figure 1 The structure of the snake bone connection structure 100 in an embodiment of the present application is shown. The snake bone connection structure 100 provided by the embodiment of the present application comprises a snake bone assembly 110 and a capillary tube 121.

[0040] The snake bone connecting structure 100 comprises a snake bone assembly 110 and a capillary tube 121, the capillary tube 121 is connected to the snake bone assembly 110, and the capillary tube 121 is connected to the snake bone assembly 110 through the operation end 210.

[0041] Referring to Figure 2 The snake bone assembly 110 in the snake bone connecting structure 100 comprises a plurality of bone segments 111, each of the bone segments 111 is provided with a bone hole 113 along the length direction of the snake bone assembly 110, the connecting groove 112 of the bone segment 111 close to the operation end 210 is communicated with the bone hole 113, the bone segment 111 is further provided with a plurality of first steel wire holes 114 along the length direction of the snake bone assembly 110, the capillary tube 121 is provided with an operation hole 122 and a plurality of second steel wire holes 123 along the length direction of the capillary tube 121, the operation end 210 is connected with the bone hole 113 through the operation hole 122, the instrument of the insertion end 211 comprises a lighting module, an imaging module and the like, the plurality of first steel wire holes 114 of the adjacent bone segments 111 are one-to-one corresponding, the plurality of first steel wire holes 114 of the bone segment 111 close to the operation end 210 are one-to-one corresponding with the plurality of second steel wire holes 123, the steel wire 220 is arranged in the first steel wire hole 114 and the second steel wire hole 123 along the length direction of the snake bone assembly 110, so that the steel wire 220 passes through the plurality of bone segments 111 and the capillary tube 121 in sequence, one end of the steel wire 220 close to the insertion end 211 is connected with the bone segment 111 close to the insertion end 211, so that the snake bone assembly 110 can be bent in different directions by pulling different steel wires 220, and the outer wall of the capillary tube 121 is connected with the inner wall of the connecting groove 112 by arranging the connecting groove 112 on the bone segment 111 close to the operation end 210, so that the capillary tube 121 does not contact the part of the snake bone assembly 110 where the avoiding groove is arranged, i.e. the weakest part of the snake bone assembly 110, thereby preventing the capillary tube 121 from piercing the weak outer skin of the snake bone assembly 110, improving the stability of the whole snake bone connecting structure 100, so that the endoscope system assembled and connected by using the snake bone connecting structure 100 can work more stably in the patient's body.

[0042] Referring to Figure 2In an embodiment, the snake bone connecting structure 100 further comprises a connecting part 120, which is radially arranged along the snake bone assembly 110, and is connected to the inner wall of the connecting groove 112 of one end of the snake bone assembly 110 which is close to the operation end 210; the connecting part 120 is connected to the outer wall of one end of the capillary tube 121 which is close to the insertion end 211, and is connected to the inner wall of the connecting groove 112 through the connecting part 120, and wraps the capillary tube 121 in the outer periphery, so as to indirectly connect the capillary tube 121 with the bone segment 111, and thus the capillary tube 121 is not in direct contact with the bone segment 111, so as to avoid the capillary tube 121 from piercing the snake bone assembly 110.

[0043] In an embodiment, the connecting part 120 is a plurality of connecting pieces, which are arranged along the circumferential direction of the snake bone assembly 110, and the length direction of the connecting pieces is the length direction of the snake bone assembly 110, so that the rotation of the snake bone at the end also has a certain flexibility, and the connecting part 120 reduces the resistance to the rotation of the snake bone.

[0044] Referring to Figure 2 In an embodiment, the connecting part 120 is a connecting tube, the outer wall of the connecting tube is connected to the inner wall of the connecting groove 112 of one end of the snake bone assembly 110 which is close to the operation end 210; the inner wall of the connecting tube is connected to the outer wall of one end of the capillary tube 121 which is close to the insertion end 211, so as to completely wrap the capillary tube 121 through the connecting tube, increase the contact area with the capillary tube 121, make the connection of the capillary tube 121 with the snake bone assembly 110 more firm, and the stress of the connecting part is dispersed in all directions, so as to ensure that the capillary tube 121 will not pierce the snake bone assembly 110.

[0045] Referring to Figure 2 In an embodiment, the snake bone connecting structure 100 further comprises an insertion tube 130, which is sleeved on the outside of the capillary tube 121 and is connected with the capillary tube 121, and the insertion tube 130 is used for supporting the snake bone connecting structure 100 in the patient's body; in this embodiment, if the insertion end 211 of the snake bone assembly 110 is inserted into the kidney through the urethra, the insertion tube 130 wraps the capillary tube 121 and is in the urethra, and the insertion tube 130 is used for supporting the snake bone connecting structure 100 in the urethra.

[0046] Referring to Figure 2In an embodiment, the snake bone connecting structure 100 further comprises a sleeve 140, the connecting part 120 partially extends out of the snake bone, the sleeve 140 is sleeved on the connecting part 120 and one end of the insertion tube 130 close to the insertion end 211, the connecting part 120 is connected with the inner wall of the sleeve 140, and the outer wall of the insertion tube 130 is connected with the inner wall of the sleeve 140, so that the connecting part 120 and the insertion tube 130 can be further fixed relative to each other through the sleeve 140, so that the insertion tube 130 is fixed, and the connecting part 120 is further fixed, so that the stability of the whole snake bone connecting structure 100 is greatly improved.

[0047] Referring to Figure 2 In an embodiment, the inner wall of the sleeve 140 has a convex ring 141, the inner wall of the convex ring 141 abuts against the outer wall of the capillary tube 121; along the length direction of the snake bone assembly 110, one side of the convex ring 141 abuts against the end face of the insertion tube 130 close to the insertion end 211, and the other side of the convex ring 141 abuts against the end face of the connecting part 120 away from the insertion end 211, so that when assembling the connecting part 120, the sleeve 140 and the insertion tube 130, the connecting part 120 with the capillary tube 121 is first inserted into the connecting groove 112, and then the sleeve 140 is sleeved on the capillary tube 121, the convex ring 141 abuts against the connecting part 120, and then the insertion tube 130 is sleeved on the capillary tube 121 and abuts against the convex ring 141, and then the connecting part 120, the sleeve 140 and the insertion tube 130 are fixed and connected with each other by welding or gluing, etc. Due to the existence of the convex ring 141, the above connection process has a certain stability, so as to facilitate the connection between the components.

[0048] Specifically, the material of the capillary tube can be stainless steel, and the insertion tube is a composite material composed of a steel wire and a TPV material; the snake bone assembly is a PUM material, the sleeve is a PC material, and the connecting part is a metal material. The above components can also be other materials, and the above materials are only one embodiment of the present application. Other feasible materials are not described here.

[0049] In an embodiment, the snake bone connecting structure 100 further comprises an adhesive, the capillary tube 121 is welded with the connecting part 120, and the connecting part 120 is bonded with the bone segment 111 through the adhesive.

[0050] In an embodiment, the connecting part 120 and the inner wall of the sleeve 140 are connected through the adhesive, and the outer wall of the insertion tube 130 and the inner wall of the sleeve 140 are connected through the adhesive.

[0051] Specifically, the specific structure and bending mode of the snake bone assembly 110 refer to the prior art, which is not described here. The present application mainly introduces how to stably connect the capillary tube 121 and the snake bone assembly 110 in the snake bone connecting structure 100.

[0052] An embodiment of the present application further provides an endoscope system, which comprises an imaging module (not shown in the figure), an illumination module (not shown in the figure) and the snake connection structure 100.

[0053] The imaging module and the illumination module are connected with the insertion end 211 of the snake connection structure 100.

[0054] Referring to Figure 2 The snake assembly 110 in the endoscope system comprises a plurality of bone segments 111, each of which is provided with a bone hole 113 along the length direction of the snake assembly 110, the connecting groove 112 of the bone segment 111 close to the operation end 210 is communicated with the bone hole 113, the bone segment 111 is further provided with a plurality of first steel wire holes 114 along the length direction of the snake assembly 110, the capillary tube 121 is provided with an operation hole 122 and a plurality of second steel wire holes 123 along the length direction thereof, the plurality of first steel wire holes 114 of adjacent bone segments 111 correspond to each other, the plurality of first steel wire holes 114 of the bone segment 111 close to the operation end 210 correspond to the plurality of second steel wire holes 123, the steel wire 220 is arranged in the first steel wire hole 114 and the second steel wire hole 123 along the length direction of the snake assembly 110, so that the steel wire 220 passes through the plurality of bone segments 111 and the capillary tube 121 in sequence, one end of the steel wire 220 close to the insertion end 211 is connected with the bone segment 111 close to the insertion end 211, so that the snake assembly 110 can be bent in different directions by pulling different steel wires 220, the connecting groove 112 is arranged on the bone segment 111 close to the operation end 210, the outer wall of the capillary tube 121 is connected with the inner wall of the connecting groove 112, so that the capillary tube 121 does not contact the part of the snake assembly 110 provided with the avoiding groove, i.e. the weakest part of the snake assembly 110, thereby preventing the capillary tube 121 from piercing the weak outer skin of the snake assembly 110, improving the stability of the whole snake connection structure 100, so that the orientations of the imaging module and the illumination module are more stable, and the endoscope system assembled and connected by using the snake connection structure 100 can work more stably in the patient's body.

[0055] The technical features of the above-mentioned embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0056] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which 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.

Claims

1. A serpentine bone connection structure, characterized by, The snake bone connecting structure comprises a snake bone assembly and a capillary tube, The snake bone assembly comprises a plurality of bone segments connected in sequence along the length direction of the snake bone assembly, and the bone segment at the operation end is provided with a connecting groove facing away from the end face of the insertion end. One end of the capillary tube is connected with the inner wall of the connecting groove.

2. The serpentine bone connecting structure according to claim 1, wherein, The connecting part is connected with the inner wall of the connecting groove of the end of the snake bone assembly close to the operation end along the radial direction of the snake bone assembly, and is connected with the outer wall of one end of the capillary tube close to the insertion end along the radial direction of the snake bone assembly.

3. The serpentine bone connection structure of claim 2, wherein, The connecting part is a plurality of connecting pieces arranged around the circumference of the snake bone assembly, and the length direction of the connecting pieces is the length direction of the snake bone assembly.

4. The serpentine bone connecting structure according to claim 2, wherein The connecting part is a connecting tube, the outer wall of the connecting tube is connected with the inner wall of the connecting groove of the end of the snake bone assembly close to the operation end, and the inner wall of the connecting tube is connected with the outer wall of one end of the capillary tube close to the insertion end.

5. The serpentine bone connecting structure according to claim 2, wherein The snake bone connecting structure further comprises an insertion tube, the insertion tube is sleeved outside the capillary tube and connected with the capillary tube, and the insertion tube is used for supporting the snake bone connecting structure in the patient's body.

6. The serpentine bone connection structure according to claim 5, wherein, The snake bone connecting structure further comprises a sleeve, the connecting part partially protrudes from the snake bone, the sleeve is sleeved on the connecting part and one end of the insertion tube close to the insertion end, the connecting part is connected with the inner wall of the sleeve, and the outer wall of the insertion tube is connected with the inner wall of the sleeve.

7. The serpentine bone connection structure according to claim 6, wherein The inner wall of the sleeve has a convex ring, and the inner wall of the convex ring abuts against the outer wall of the capillary tube. Along the length direction of the snake bone assembly, one side of the convex ring abuts against the end face of the insertion tube close to the insertion end, and the other side of the convex ring abuts against the end face of the connecting part away from the insertion end.

8. The serpentine bone connecting structure according to claim 6, wherein The snake bone connecting structure further comprises an adhesive, the capillary tube and the connecting part are welded, and the connecting part and the bone segment are bonded by the adhesive.

9. The serpentine bone connecting structure according to claim 8, wherein, The inner wall of the sleeve and the connecting part are connected by the adhesive, and the outer wall of the insertion tube and the inner wall of the sleeve are connected by the adhesive.

10. An endoscope system characterized by comprising: The endoscope system comprises an imaging module, an illumination module, and the snake bone connecting structure according to any one of claims 1-9. The imaging module and the illumination module are connected with the insertion end of the snake bone connecting structure.

Images