Snake bone tube and endoscope

Abstract

The utility model provides a snake bone tube and endoscope belongs to snake bone structure technical field, including: at least two snake bone unit, its both ends respectively form insertion end and installation end, the insertion end is provided with the rotatory projection, the installation end is provided with the rotatory recess, the rotatory projection is matched with the rotatory recess, the rotatory projection is equipped with the rotatory recess, the rotatory recess is equipped with the rotatory projection, the rotatory recess is equipped with the rotatory projection, and the rotatory projection is equipped with the rotatory recess. In every two adjacent snake bone units, the rotating protrusion of one snake bone unit is embedded into the rotating recess of the other snake bone unit so that the two snake bone units can rotate relatively, and when the snake bone pipe is pulled out of the human body, the pulling-out direction extends from the insertion end to the installation end. The snake bone pulling-out device has the advantages that even if the rotating protrusions are broken and the spines rise upwards, the snake bone can be pulled out of the body smoothly, and fragments of the raised protrusions can be smoothened in the forward direction instead of upwarping in the reverse direction and stabbing the human body.

Description

Technical Field

[0001] This utility model belongs to the field of snake bone structure technology, and relates to a snake bone tube and an endoscope. Background Technology

[0002] An endoscope is a commonly used medical device. An endoscope typically includes a curved section, which is composed of a snake bone. The snake bone consists of several interconnected snake bone units. In the prior art, adjacent snake bone units are usually rotatably connected by a pin assembly.

[0003] When the internal channel tube of an endoscope is bent repeatedly or used with instruments, it may experience localized excessive wear, stress deformation, dislocation or even breakage of the serpentine structure. Due to design issues at the nodes, the broken ends of the existing endoscopic serpentine structure may form sharp edges when it breaks or dislocates, and these edges are more likely to lift up when the human body is removed, further increasing the risk of scratching human tissue. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a snake-bone tube and an endoscope.

[0005] The objective of this utility model can be achieved through the following technical solution: a snake bone tube, comprising:

[0006] At least two snake-bone units, each having an insertion end and an installation end at its two ends. The insertion end has a rotating protrusion, and the installation end has a rotating recess. The rotating protrusion and the rotating recess are adapted to each other. In two adjacent snake-bone units, the rotating protrusion of one snake-bone unit is embedded into the rotating recess of the other snake-bone unit, thereby allowing the two snake-bone units to rotate relative to each other. When the snake-bone tube is pulled out of the human body, the pulling direction is from the insertion end toward the installation end.

[0007] In the aforementioned snake-bone tube, the insertion end is formed with a first limiting part and a second limiting part, and the mounting end is formed with a third limiting part and a fourth limiting part. When two adjacent snake-bone units rotate relative to each other, the first limiting part and the third limiting part can come into contact with each other, or the second limiting part and the fourth limiting part can come into contact with each other.

[0008] In the aforementioned snake-bone tube, the rotating protrusion is a "C"-shaped protrusion, and the rotating recess is a "C"-shaped recess.

[0009] In the aforementioned snake-bone tube, one side of the rotating protrusion is connected to the snake-bone unit, the two ends of the rotating protrusion are respectively formed as the first limiting part and the second limiting part, the two ends of the rotating recess are respectively formed as the third limiting part and the fourth limiting part, and one side of the rotating recess is connected to the outside.

[0010] In the aforementioned snake-bone tube, the insertion end is further formed with two sliding grooves, and the mounting end is further formed with two sliding blocks. The two sliding blocks correspond one-to-one with the two sliding grooves. When two adjacent snake-bone units rotate relative to each other, the two sliding blocks of one snake-bone unit slide in the two sliding grooves of the other snake-bone unit respectively.

[0011] In the aforementioned snake-bone tube, the first limiting part and the second limiting part are respectively located at one end of the two sliding grooves, and the third limiting part and the fourth limiting part are respectively located at one end of the two sliding blocks.

[0012] In the aforementioned snake-bone tube, there are two rotating protrusions and two rotating recesses, each corresponding to the other. The two rotating protrusions are concentrically arranged, and the two rotating recesses are concentrically arranged.

[0013] In one of the above-mentioned snake-bone tubes, two of the rotating protrusions are distributed around the center of the axial direction of the snake-bone unit, and two of the rotating recesses are distributed around the center of the axial direction of the snake-bone unit; or the two rotating protrusions are distributed in a mirror image, and the two rotating recesses are distributed in a mirror image.

[0014] Secondly, an endoscope, including the snake-bone tube, further includes an endoscope body, one end of the snake-bone tube being connected to the endoscope body, and the mounting end of the same snake-bone unit being closer to the endoscope body than the insertion end.

[0015] In one of the aforementioned endoscopes, an insertion head is also included, which is connected to one end of the snake-bone tube away from the endoscope body. The insertion end of the same snake-bone unit is closer to the insertion head than the mounting end.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. By setting the rotating protrusion at the insertion end and the rotating recess at the installation end, the snake bone tube is pulled out of the human body in the direction of extension from the insertion end to the installation end. Even if the rotating protrusion breaks and causes the spikes to rise, the snake bone can still be pulled out of the body smoothly. Moreover, the raised protrusion fragments can be smoothed out in the direction of insertion, rather than rising further in the opposite direction and piercing the human body.

[0018] 2. The rotating protrusion is a "C" shaped protrusion, and the rotating recess is a "C" shaped recess, so that the two snake bone units can rotate relative to each other, while preventing the rotating protrusion and rotating recess from separating during rotation.

[0019] 3. The distance between the first limiting part and the second limiting part along the circumferential direction of the rotating protrusion is greater than the distance between the third limiting part and the fourth limiting part along the circumferential direction of the rotating recess, so as to prevent the rotating protrusion and the rotating recess from separating during rotation.

[0020] 4. When the two snake-bone units rotate relative to each other, the two sliding blocks always slide in the two sliding grooves respectively to prevent the rotating protrusion and the rotating recess from separating during rotation.

[0021] 5. When the two snake-bone units rotate relative to each other, the first limiting part and the third limiting part can contact each other or the second limiting part and the fourth limiting part can contact each other, thereby limiting the two extreme positions of the relative rotation of the two snake-bone units, and thus limiting the maximum rotation angle of the two adjacent snake-bone units.

[0022] 6. The two rotating protrusions and the two rotating recesses are concentrically arranged, which ensures that the snake-bone unit can rotate on both sides and improves the stability during rotation.

[0023] 7. The two rotating protrusions are distributed or mirror-distributed around the axial center of the tubular body, and the two rotating recesses are distributed or mirror-distributed around the axial center of the tubular body, which further improves the stability during rotation and prevents the rotating protrusions and rotating recesses from separating during rotation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the snake-bone tube according to Embodiment 1 of this utility model.

[0025] Figure 2 This is a schematic diagram of the snake bone unit in Embodiment 1 of this utility model.

[0026] Figure 3 This is a front view of the snake-bone unit of Embodiment 1 of this utility model.

[0027] Figure 4 This is a schematic diagram of the snake-bone tube in Embodiment 2 of this utility model.

[0028] Figure 5 This is a schematic diagram of the snake bone unit in Embodiment 2 of this utility model.

[0029] Figure 6 This is a front view of the snake-bone unit in Embodiment 2 of this utility model.

[0030] Figure 7 This is a schematic diagram of the endoscope in Embodiment 3 of this utility model.

[0031] Figure 8 This is a schematic diagram of the endoscope in Embodiment 4 of this utility model.

[0032] In the figure, 100 is the snake bone unit; 110 is the rotating protrusion; 111 is the first limiting part; 112 is the second limiting part; 113 is the sliding groove; 120 is the rotating recess; 121 is the third limiting part; 122 is the fourth limiting part; 123 is the sliding block; and 200 is the insertion head. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0039] Example 1

[0040] like Figures 1-3 As shown, a snake-bone tube includes:

[0041] At least two snake bone units 100, each having an insertion end (not shown in the figure) and an installation end (not shown in the figure) at its two ends. The insertion end is provided with a rotating protrusion 110, and the installation end is provided with a rotating recess 120. The rotating protrusion 110 and the rotating recess 120 are adapted to each other. In two adjacent snake bone units 100, the rotating protrusion 110 of one snake bone unit 100 is embedded into the rotating recess 120 of the other snake bone unit 100, thereby allowing the two snake bone units 100 to rotate relative to each other. When the snake bone tube is pulled out of the human body, the pulling direction is from the insertion end toward the installation end.

[0042] In this embodiment, by setting the rotating protrusion 110 at the insertion end and the rotating recess 120 at the installation end, the snake bone tube is pulled out of the human body in the direction of extension from the insertion end to the installation end. Even if the rotating protrusion 110 breaks, causing the spikes to rise, the snake bone can still be pulled out of the body smoothly, and the raised protrusion fragments can be smoothed out in the direction of extension, rather than rising further in the opposite direction and piercing the human body.

[0043] like Figures 1-3 As shown, based on the above embodiment, the insertion end is formed with a first limiting part 111 and a second limiting part 112, and the mounting end is formed with a third limiting part 121 and a fourth limiting part 122. When two adjacent snake bone units 100 rotate relative to each other, the first limiting part 111 and the third limiting part 121 can contact each other or the second limiting part 112 and the fourth limiting part 122 can contact each other.

[0044] In this embodiment, when the two snake-bone units 100 rotate relative to each other, the first limiting part 111 and the third limiting part 121 can come into contact with each other or the second limiting part 112 and the fourth limiting part 122 can come into contact with each other, thereby limiting the two extreme positions of the relative rotation of the two snake-bone units 100, and further limiting the maximum rotation angle of the two adjacent snake-bone units 100.

[0045] like Figures 1-3As shown, based on the above embodiment, the rotating protrusion 110 is a "C"-shaped protrusion, and the rotating recess 120 is a "C"-shaped recess.

[0046] Specifically, the shape of the rotating protrusion 110 is an obtuse angle, and the shape of the rotating recess 120 is an obtuse angle.

[0047] In this embodiment, the rotating protrusion 110 is a "C"-shaped protrusion and the rotating recess 120 is a "C"-shaped recess, so that the two snake bone units 100 can rotate relative to each other, while preventing the rotating protrusion 110 and the rotating recess 120 from separating during rotation.

[0048] like Figures 1-3 As shown, based on the above embodiment, one side of the rotating protrusion 110 is connected to the snake bone unit 100, the two ends of the rotating protrusion 110 are respectively formed as the first limiting part 111 and the second limiting part 112, the two ends of the rotating recess 120 are respectively formed as the third limiting part 121 and the fourth limiting part 122, and one side of the rotating recess 120 is connected to the outside.

[0049] In this embodiment, the distance between the first limiting part 111 and the second limiting part 112 along the circumferential direction of the rotating protrusion 110 is greater than the distance between the third limiting part 121 and the fourth limiting part 122 along the circumferential direction of the rotating recess 120, so as to prevent the rotating protrusion 110 and the rotating recess 120 from separating during rotation.

[0050] like Figures 1-3 As shown, based on the above embodiment, the number of the rotating protrusions 110 and the rotating recesses 120 are both two and correspond one-to-one. The two rotating protrusions 110 are concentrically arranged, and the two rotating recesses 120 are concentrically arranged.

[0051] In this embodiment, the two rotating protrusions 110 and the two rotating recesses 120 are concentrically arranged, thereby ensuring that the snake bone unit 100 can rotate on both sides and improving the stability during rotation.

[0052] like Figures 1-3 As shown, based on the above embodiment, the two rotating protrusions 110 are distributed around the axial center of the snake bone unit 100, and the two rotating recesses 120 are distributed around the axial center of the snake bone unit 100.

[0053] In this embodiment, two rotating protrusions 110 are distributed around the axial center of the snake bone unit 100, and two rotating recesses 120 are distributed around the axial center of the snake bone unit 100, which further improves the stability during rotation and prevents the rotating protrusions 110 and rotating recesses 120 from separating during rotation.

[0054] Example 2

[0055] like Figures 4-6 As shown, a snake-bone tube includes:

[0056] At least two snake bone units 100, each having an insertion end (not shown in the figure) and an installation end (not shown in the figure) at its two ends. The insertion end is provided with a rotating protrusion 110, and the installation end is provided with a rotating recess 120. The rotating protrusion 110 and the rotating recess 120 are adapted to each other. In two adjacent snake bone units 100, the rotating protrusion 110 of one snake bone unit 100 is embedded into the rotating recess 120 of the other snake bone unit 100, thereby allowing the two snake bone units 100 to rotate relative to each other. When the snake bone tube is pulled out of the human body, the pulling direction is from the insertion end toward the installation end.

[0057] In this embodiment, by setting the rotating protrusion 110 at the insertion end and the rotating recess 120 at the installation end, the snake bone tube is pulled out of the human body in the direction of extension from the insertion end to the installation end. Even if the rotating protrusion 110 breaks, causing the spikes to rise, the snake bone can still be pulled out of the body smoothly, and the raised protrusion fragments can be smoothed out in the direction of extension, rather than rising further in the opposite direction and piercing the human body.

[0058] like Figures 4-6 As shown, based on the above embodiment, the insertion end is formed with a first limiting part 111 and a second limiting part 112, and the mounting end is formed with a third limiting part 121 and a fourth limiting part 122. When two adjacent snake bone units 100 rotate relative to each other, the first limiting part 111 and the third limiting part 121 can contact each other or the second limiting part 112 and the fourth limiting part 122 can contact each other.

[0059] In this embodiment, when the two snake-bone units 100 rotate relative to each other, the first limiting part 111 and the third limiting part 121 can come into contact with each other or the second limiting part 112 and the fourth limiting part 122 can come into contact with each other, thereby limiting the two extreme positions of the relative rotation of the two snake-bone units 100, and further limiting the maximum rotation angle of the two adjacent snake-bone units 100.

[0060] like Figures 4-6 As shown, based on the above embodiment, two sliding grooves 113 are formed on one end of the snake bone unit 100 near the rotating protrusion 110, and two sliding blocks 123 are formed on one end of the snake bone unit 100 near the rotating recess 120. The two sliding blocks 123 correspond one-to-one with the two sliding grooves 113.

[0061] When the two snake-bone units 100 rotate relative to each other, the two sliding blocks 123 of one snake-bone unit 100 slide in the two sliding grooves 113 of the other snake-bone unit 100 respectively.

[0062] In this embodiment, when the two snake bone units 100 rotate relative to each other, the two sliding blocks 123 always slide in the two sliding grooves 113 respectively, to prevent the rotating protrusion 110 and the rotating recess 120 from separating during rotation.

[0063] like Figures 4-6 As shown, based on the above embodiment, the first limiting part 111 and the second limiting part 112 are respectively located at one end of the two sliding grooves 113, and the third limiting part 121 and the fourth limiting part 122 are respectively located at one end of the two sliding blocks 123.

[0064] In this embodiment, when the two snake-bone units 100 rotate relative to each other, the first limiting part 111 and the third limiting part 121 can come into contact with each other or the second limiting part 112 and the fourth limiting part 122 can come into contact with each other, thereby limiting the two extreme positions of the relative rotation of the two snake-bone units 100, and further limiting the maximum rotation angle of the two adjacent snake-bone units 100.

[0065] like Figures 4-6 As shown, based on the above embodiment, the number of the rotating protrusions 110 and the rotating recesses 120 are both two and correspond one-to-one. The two rotating protrusions 110 are concentrically arranged, and the two rotating recesses 120 are concentrically arranged.

[0066] In this embodiment, the two rotating protrusions 110 and the two rotating recesses 120 are concentrically arranged, thereby ensuring that the snake bone unit 100 can rotate on both sides and improving the stability during rotation.

[0067] like Figures 4-6 As shown, based on the above embodiment, the two rotating protrusions 110 are distributed around the axial center of the snake bone unit 100, and the two rotating recesses 120 are distributed around the axial center of the snake bone unit 100; or the two rotating protrusions 110 are mirror-distributed, and the two rotating recesses 120 are mirror-distributed.

[0068] In this embodiment, the two rotating protrusions 110 are distributed or mirror-distributed around the axial center of the snake bone unit 100, and the two rotating recesses 120 are distributed or mirror-distributed around the axial center of the snake bone unit 100, which further improves the stability during rotation and prevents the rotating protrusions 110 and rotating recesses 120 from separating during rotation.

[0069] Example 3

[0070] like Figure 7 As shown, an endoscope includes a snake-bone tube as described in Embodiment 1, and further includes an endoscope body (not shown in the figure), one end of the snake-bone tube being connected to the endoscope body, and the mounting end of the same snake-bone unit 100 being closer to the endoscope body than the insertion end.

[0071] like Figure 7 As shown, based on the above embodiment, it also includes an insertion head 200, which is connected to one end of the snake tube away from the endoscope body. The insertion end of the same snake unit 100 is closer to the insertion head 200 than the mounting end.

[0072] Example 4

[0073] like Figure 8 As shown, an endoscope includes a snake-bone tube as described in Embodiment 2, and further includes an endoscope body (not shown in the figure), one end of the snake-bone tube being connected to the endoscope body, and the mounting end of the same snake-bone unit 100 being closer to the endoscope body than the insertion end.

[0074] like Figure 8 As shown, based on the above embodiment, it also includes an insertion head 200, which is connected to one end of the snake tube away from the endoscope body. The insertion end of the same snake unit 100 is closer to the insertion head 200 than the mounting end.

Claims

1. A serpentine tube, characterized by, include: At least two snake-bone units, each having an insertion end and an installation end at its two ends. The insertion end has a rotating protrusion, and the installation end has a rotating recess. The rotating protrusion and the rotating recess are adapted to each other. In two adjacent snake-bone units, the rotating protrusion of one snake-bone unit is embedded into the rotating recess of the other snake-bone unit, thereby allowing the two snake-bone units to rotate relative to each other. When the snake-bone tube is pulled out of the human body, the pulling direction is from the insertion end toward the installation end.

2. A serpentine tube as claimed in claim 1, characterized in that: The insertion end has a first limiting part and a second limiting part, and the mounting end has a third limiting part and a fourth limiting part. When two adjacent snake bone units rotate relative to each other, the first limiting part and the third limiting part can contact each other, or the second limiting part and the fourth limiting part can contact each other.

3. A serpentine tube as claimed in claim 2, wherein: The rotating protrusion is a "C"-shaped protrusion, and the rotating recess is a "C"-shaped recess.

4. A serpentine tube as claimed in claim 3, wherein: One side of the rotating protrusion is connected to the snake bone unit, and the two ends of the rotating protrusion are respectively formed as the first limiting part and the second limiting part. The two ends of the rotating recess are respectively formed as the third limiting part and the fourth limiting part. One side of the rotating recess is connected to the outside.

5. A serpentine bone conduit as claimed in claim 2, wherein: The insertion end also forms two sliding grooves, and the mounting end also forms two sliding blocks. The two sliding blocks correspond one-to-one with the two sliding grooves. When two adjacent snake-bone units rotate relative to each other, the two sliding blocks of one snake-bone unit slide in the two sliding grooves of the other snake-bone unit respectively.

6. A serpentine bone conduit as claimed in claim 5, characterized in that: The first limiting part and the second limiting part are respectively located at one end of the two sliding grooves, and the third limiting part and the fourth limiting part are respectively located at one end of the two sliding blocks.

7. A snake bone pipe according to any one of claims 1 to 6, wherein: The number of each of the rotating protrusions and the rotating recesses is two and they correspond one-to-one. The two rotating protrusions are arranged concentrically, and the two rotating recesses are arranged concentrically.

8. A serpentine bone conduit as claimed in claim 7, characterized in that: The two rotating protrusions are distributed around the center of the axial direction of the snake bone unit, and the two rotating recesses are distributed around the center of the axial direction of the snake bone unit; or the two rotating protrusions are distributed in a mirror image, and the two rotating recesses are distributed in a mirror image.

9. An endoscope characterized by comprising: The device includes the snake-bone tube as described in any one of claims 1-6, and further includes an endoscope body, one end of the snake-bone tube being connected to the endoscope body, wherein the mounting end of the same snake-bone unit is closer to the endoscope body than the insertion end.

10. An endoscope according to claim 9, wherein: It also includes an insertion head, which is connected to one end of the snake tube away from the endoscope body, and the insertion end of the same snake unit is closer to the insertion head than the mounting end.

Images