Endoscope snake bone and endoscope

Abstract

The utility model discloses an endoscope snake bone and an endoscope, the endoscope snake bone comprises a tube body, the tube body forms a plurality of bone joints, the bone joints are sequentially connected along the axial direction, and the adjacent bone joints can rotate relatively; wherein the outer surface of at least one joint is provided with a groove, the groove is used for fixing the snake bone skin and the connecting pipe, and the joint provided with the groove is further provided with an annular boss. According to the endoscope snake bone and the endoscope, the groove is formed in the snake bone, so that the connecting pipe and the snake bone skin can be conveniently assembled, the probability of glue overflowing during bonding is reduced, and the positioning precision of the connecting pipe and the snake bone skin is improved; and the annular boss is arranged near the groove, so that the end part of the connecting pipe is in flush transition, the exposed sharp edge is effectively wrapped, and the sharp edge is prevented from cutting human tissues.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an endoscope snake and an endoscope. Background Art

[0002] The endoscope snake bone needs to fix the clamp channel tube, electrical connection wires and snake bone skin covering the outer surface of the joint. In the related technology, glue is usually used to bond the connection tube, and the clamp channel tube and electrical connection wires are fixed through the connection tube, and the fixation of the snake bone skin is also achieved by glue bonding. In the process of gluing, problems such as glue overflow and bonding positioning deviation are prone to occur. Therefore, it is necessary to study and improve the above problems.

[0003] At the same time, as a key structural component of the endoscope, the snake bone is connected to the joint end at the front and the insertion tube at the back. The diameter of the connecting tube is larger than the snake bone, and the end is protruding with exposed sharp edges, which may cause dangerous hidden dangers of cutting human tissue. This is also a problem that designers need to solve. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an endoscope snake bone and an endoscope, which can reduce the possibility of glue overflow during bonding and improve the positioning accuracy of bonding, while avoiding the protrusion of the end of the connecting tube, avoiding all or some of the above-mentioned defects.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an endoscope snake bone, the endoscope snake bone comprises a tube body, the tube body forms a plurality of bone joints, each of the bone joints is connected in sequence along the axial direction, and the adjacent bone joints can rotate relatively;

[0006] Among them, the outer surface of at least one of the joints is provided with a groove, and the groove is used to fix the snake bone skin and the connecting tube. The joint provided with the groove is also provided with an annular boss.

[0007] The tube body has a first end and a second end opposite to each other in the axial direction, and at least one of the condyle located at the first end and the condyle located at the second end is provided with the groove.

[0008] Wherein, the groove surrounds the outer surface of the condyle along the circumference of the condyle.

[0009] Wherein, the width of the groove along the axial direction is smaller than the length of the condyle, and the groove is arranged close to one end of the outer side of the condyle.

[0010] Wherein, the annular boss is arranged close to the inner edge of the groove.

[0011] In order to solve the technical problem, the present application also provides an endoscope, which includes the endoscope snake bone described above.

[0012] Among them, the endoscope also includes a snake bone skin and a connecting tube, the snake bone skin is set outside the endoscope snake bone, the end of the snake bone skin is set in the groove, and the part of the snake bone skin located at the annular boss forms a raised abutment portion; the end cover of the connecting tube is set outside the end of the snake bone skin, and the end of the connecting tube abuts against the abutment portion.

[0013] Among them, the outer diameter of the groove is smaller than the difference between the outer diameter of the connecting tube and twice the thickness of the snake bone skin, and the outer diameter of the annular boss is equal to the difference between the outer diameter of the connecting tube and twice the thickness of the snake bone skin.

[0014] Wherein, the length of the snake bone skin is smaller than the length of the tube body.

[0015] Wherein, the end of the connecting tube, the end of the snake bone skin and the groove are bonded in sequence.

[0016] Compared with the prior art, the beneficial effects achieved by the endoscope snake bone and the endoscope of the utility model are as follows: a groove is provided on the snake bone to facilitate the assembly of the connecting tube and the snake bone skin, reduce the probability of glue overflow during bonding, and improve the positioning accuracy of the connecting tube and the snake bone skin; an annular boss is provided near the groove to make the end of the connecting tube transition flush, effectively wrapping the exposed sharp edges to prevent the sharp edges from cutting human tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the endoscope snake bone of the utility model;

[0019] Figure 2 It is a cross-sectional view of some structures of the endoscope;

[0020] Figure 3 yes Figure 2 A partial enlarged view of part A in the middle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0022] In the utility model embodiment, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] See also Figure 1 , Figure 1 The schematic diagram of the structure of the endoscope snake bone of the utility model is shown in FIG. The endoscope snake bone comprises a tube body 1, which forms a plurality of joints 100. The joints 100 are connected in sequence along the axial direction, and the adjacent joints 100 can rotate relative to each other. Among them, the outer surface of at least one joint 100 is provided with a groove 110, and the groove 110 is used to fix the snake bone skin and the connecting tube. The joint 100 provided with the groove 110 is also provided with an annular boss 120.

[0025] By providing a groove 110 on the outer surface of the joint 100, the groove 110 can provide a positioning for the setting position of the glue, thereby improving the positioning accuracy of accessories such as the snake bone skin and the connecting tube when bonding to the joint 100, and when the glue is squeezed and bonded, the wall surface of the groove 110 will limit the displacement of the glue, reducing the probability of the glue flowing around, thereby reducing the probability of glue overflow.

[0026] Since the connecting tube is sleeved outside the snake bone skin, the outer diameter of the connecting tube is larger than the outer diameter of the snake bone skin, and there is a height difference between the two after they are connected to the snake bone of the endoscope, so that the end of the connecting tube is exposed to form a sharp edge, which may cause damage to human tissue during use. By providing an annular boss 120 on the joint 100, the end of the connecting tube is made to transition flush, effectively wrapping the exposed sharp edge to prevent the sharp edge from cutting human tissue.

[0027] Each joint 100 corresponds to each other in the axial direction, which can be understood as each joint 100 is coaxially arranged in the axial direction, so that endoscope components such as the clamp channel tube can smoothly enter the endoscope snake bone. Among them, the deviation of the axis within the allowable error range can also be considered as a coaxial arrangement.

[0028] In the present application, the tube body 10 has a first end 200 and a second end 300 opposite to each other in the axial direction, and at least one of the condyles 100 at the first end 200 and the condyles 100 at the second end 300 is provided with a groove 110. The snake bone skin is used to cover each condyle 100 and the gap between adjacent condyles 100, so the snake bone skin needs to cover from the condyle 100 at the first end 200 to the condyle 100 at the second end 300 in the axial direction, and at least one of the condyles 100 at the first end 200 and the condyle 100 at the second end 300 is provided with a groove 110, which can quickly realize the positioning of the bonding position of the head or tail of the snake bone skin, thereby improving the bonding efficiency. According to the bonding requirements, the joint 100 located at the first end 200 and the joint 100 located at the second end 300 can be provided with a groove 110. Furthermore, the outer surface of the joint 100 located in the middle position can also be provided with a groove 110 to further improve the bonding strength between the snake bone skin and the joint 100.

[0029] Specifically, the first end 200 is the patient end, which is used as the end of the endoscope entering the human body. The second end 300 is the doctor operation end, which is used as the end of the endoscope entering the human body, or is used as the end located outside the human body for operation.

[0030] In the present application, the groove 110 surrounds the outer surface of the condyle 100 along the circumference of the condyle, so that the groove 110 is an annular groove. Since the connecting tube is usually selected as a metal ring to facilitate assembly through plug-in matching, the groove 110 is set as an annular groove so that the metal ring can be sleeved on the groove 110, which can further improve the positioning accuracy of the connecting tube and facilitate the bonding of the connecting tube to the condyle 100. In addition, in the embodiment where the snake bone skin is wound and fixed by silk thread, the annular groove 110 can provide positioning for the winding position of the silk thread, and the wall surface of the groove 110 can limit the sliding of the silk thread to reduce the difficulty of silk thread winding and the possibility of silk thread slippage.

[0031] In the present application, the width of the groove 110 in the axial direction is smaller than the length of the condyle 100, and the groove 110 is arranged near one end of the outer side of the condyle 100. For the convenience of explanation, in the present application, the end near the first end 200 and the second end 300 opposite to the tube body 10 is referred to as the end located on the outer side, and the end away from the first end 200 and the second end 300 is referred to as the end located on the inner side. Since the groove 110 and the annular boss 120 need to be arranged on the condyle 100 at the same time, the width of the groove 110 is smaller than the length of the condyle 100. At the same time, since the connecting tube is connected to the endoscope snake from the outer side of the endoscope snake, the groove 110 is arranged on the end of the condyle 100 located on the outer side, so as to facilitate the fixation with the connecting tube.

[0032] In the present application, the annular boss 120 is arranged close to the inner edge of the groove 110. Similarly, since the connecting tube is connected to the endoscope snake from the outside of the endoscope snake, after the connecting tube enters the groove 110, the end of the connecting tube abuts against the annular boss 120, so that the end of the connecting tube transitions smoothly to avoid the formation of a bulge.

[0033] In order to solve the technical problem, the present application also provides an endoscope, which includes the above-mentioned endoscope snake bone.

[0034] See also Figure 2 and Figure 3 In the present application, the endoscope further includes a serpentine skin 400 and a connecting tube 500. The serpentine skin 400 is sleeved outside the serpentine of the endoscope. The end of the serpentine skin 400 is arranged in the groove 110, and the part of the serpentine skin 400 located at the annular boss 120 forms a raised abutment. The end of the connecting tube 500 is covered outside the end of the serpentine skin 400, and the end of the connecting tube 500 abuts against the abutment. The groove 110 can be used as a connection position, and the annular boss 120 is provided to form a raised abutment so that the end of the connecting tube 500 is flush with the transition. The connecting tube 500 abuts against the abutment, effectively wrapping the exposed sharp edge to prevent the sharp edge from cutting human tissue.

[0035] In the present application, the outer diameter of the groove 110 is smaller than the difference between the outer diameter of the connecting tube 500 and twice the thickness of the snake bone skin 400. The snake bone skin 400 and the connecting tube 500 are coaxial. The above arrangement makes the outer edge of the connecting tube 500 extend beyond the groove 110, so that the snake bone skin 400 can be completely accommodated in the groove 110, so that the snake bone skin 400 and the connecting tube 500 will not protrude when fixed in the groove 110. The outer diameter of the annular boss 120 is equal to the difference between the outer diameter of the connecting tube 500 and twice the thickness of the snake bone skin 400. The above arrangement makes the distance that the outer edge of the connecting tube 500 exceeds the outer edge of the annular boss 120 just equal to the thickness of the snake bone skin 400. The snake bone skin 400 is covered on the outer surface of the annular boss 120, so that the height of the raised abutment portion is flush with the outer surface of the connecting tube 500. The end of the connecting tube 500 abuts against the abutment portion, and the connecting tube 500 is shielded by the abutment portion to avoid the sharp edge of the end of the connecting tube 500 being exposed and causing adverse consequences.

[0036] In the present application, the length of the snake bone skin 400 is smaller than the length of the tube body 1, so that it is convenient to place the two ends of the snake bone skin 400 in the groove 110 located at the end of the snake bone of the endoscope, thereby facilitating the positioning and bonding of the snake bone skin 400.

[0037] In the present application, the end of the connecting tube 500, the end of the snake bone skin 400 and the groove 110 are bonded in sequence, so that the connecting tube 500, the snake bone skin 400 and the endoscope snake bone are connected.

[0038] The method for connecting the connecting tube 500, the snake bone skin 400 and the endoscope snake bone in the present application is as follows: pour glue into the groove 110 at one end of the endoscope snake bone, put the snake bone skin 400 on the outside of the endoscope snake bone, and then insert the glue-coated endoscope snake bone together with the snake bone skin 400 into one end of the connecting tube 500, smooth the glue at the outer seam of the connecting tube 500 and the snake bone skin 400, and wipe off the excess glue. After the glue at the end of the snake bone is cured, fill the groove 110 at the other end of the snake bone with glue, and repeat the above steps. After the glue at both ends of the snake bone is cured, the connection and fixation of the endoscope snake bone, the snake bone skin 400 and the connecting piece 500 are completed.

[0039] When using the endoscope snake bone and endoscope of the utility model, a groove is arranged on the snake bone, which can facilitate the assembly of the connecting tube and the snake bone skin, reduce the probability of glue overflow during bonding, and improve the positioning accuracy of the connecting tube and the snake bone skin; an annular boss is arranged near the groove to make the end of the connecting tube transition flush, effectively wrap the exposed sharp edges, and prevent the sharp edges from cutting human tissue.

[0040] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. An endoscope snake bone, characterized in that: The endoscope snake bone comprises a tube body, the tube body forms a plurality of joints, each of the joints is sequentially connected along the axial direction, and adjacent joints can rotate relative to each other; Among them, the outer surface of at least one of the joints is provided with a groove, and the groove is used to fix the snake bone skin and the connecting tube. The joint provided with the groove is also provided with an annular boss.

2. The endoscope snake bone according to claim 1, characterized in that: The tube body has a first end and a second end opposite to each other in the axial direction, and at least one of the condyle located at the first end and the condyle located at the second end is provided with the groove.

3. The endoscope snake bone according to claim 2, characterized in that: The groove surrounds the outer surface of the condyle along the circumference of the condyle.

4. The endoscope snake according to claim 3, characterized in that: The width of the groove along the axial direction is smaller than the length of the condyle, and the groove is arranged close to one end of the outer side of the condyle.

5. The endoscope snake according to claim 4, characterized in that: The annular boss is arranged close to the inner edge of the groove.

6. An endoscope, characterized in that: The endoscope comprises an endoscope snake as claimed in any one of claims 1 to 5.

7. The endoscope according to claim 6, characterized in that The endoscope also includes a serpentine skin and a connecting tube. The serpentine skin is set outside the endoscope serpentine, and the end of the serpentine skin is set in the groove. The part of the serpentine skin located at the annular boss forms a raised abutment portion; the end cover of the connecting tube is set outside the end of the serpentine skin, and the end of the connecting tube abuts against the abutment portion.

8. The endoscope according to claim 7, characterized in that The outer diameter of the groove is smaller than the difference between the outer diameter of the connecting tube and twice the thickness of the snake bone skin, and the outer diameter of the annular boss is equal to the difference between the outer diameter of the connecting tube and twice the thickness of the snake bone skin.

9. The endoscope according to claim 7, characterized in that: The length of the snake bone skin is shorter than the length of the tube body.

10. The endoscope according to claim 7, characterized in that: The end of the connecting pipe, the end of the snake bone skin and the groove are bonded in sequence.

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