Endoscope measuring device

Abstract

The present application relates to a kind of endoscope measuring device, it is related to medical instrument technical field, endoscope measuring device includes sheath, first inner core, second inner core and scale;First inner core is inserted in the lumen of the sheath, second inner core is inserted in the lumen of sheath, scale is inserted in the lumen of sheath, and one end of scale is rotatably connected with first inner core, other end is rotatably connected with second inner core, first inner core and second inner core can be simultaneously moved in first direction to push scale out of sheath, first inner core and second inner core can be oppositely moved to adjust the angle between scale and sheath.The technical problem that the endoscope measuring device in prior art cannot accurately complete the measurement of lesion size is alleviated.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to an endoscopic measuring device. Background Technology

[0002] During endoscopic examinations, when encountering lesions such as raised or ulcerated lesions, it is necessary to describe the size of the lesion. Currently, doctors roughly estimate the size of the lesion by visual estimation or comparison with the size of the biopsy forceps. As a result, there is more or less error between the actual size of the lesion and the estimated size. There is no objective and measurable standard. In clinical practice, this can adversely affect the patient's subsequent treatment in some serious cases, which is very detrimental to clinical work.

[0003] Although existing technologies have endoscopic measuring instruments to measure the size of lesions, due to the complex environment of the lesions (such as varicose veins in the liver), the endoscopic measuring instruments cannot be accurately adjusted to the precise position to make accurate measurements of the lesions, which can easily lead to errors in the measurement results. Summary of the Invention

[0004] The purpose of this invention is to provide an endoscopic measuring device to alleviate the technical problem that existing endoscopic measuring devices cannot accurately measure the size of lesions.

[0005] To achieve the above objectives, an embodiment provides an endoscopic measuring device, including a sheath, a first inner core, a second inner core, and a scale;

[0006] The first inner core is inserted into the inner cavity of the sheath tube;

[0007] The second inner core is inserted into the inner cavity of the sheath tube;

[0008] The scale is inserted into the inner cavity of the sheath, and one end of the scale is rotatably connected to the first inner core and the other end is rotatably connected to the second inner core. The first inner core and the second inner core can move simultaneously in a first direction to push the scale out of the sheath. The first inner core and the second inner core can move in opposite directions to adjust the angle between the scale and the sheath.

[0009] In an optional embodiment, the endoscopic measuring device further includes a movable member inserted into the sheath, the movable member being sleeved on the first inner core and fixedly connected to the second inner core, the sheath being provided with a first limiting member for restricting the movable member from continuing to move in a first direction, and when the movable member moves to the first limiting member, the scale is fully extended out of the sheath.

[0010] In an optional embodiment, the first inner core is fixedly connected to a second limiting member, and the movable member can restrict the second limiting member from continuing to move along a first direction. When the movable member abuts against the second limiting member, the angle between the scale and the sheath is 90°.

[0011] In an optional embodiment, the endoscopic measuring device further includes a handle fixed to the end of the sheath.

[0012] In an optional embodiment, the endoscopic measuring device further includes a slide handle slidably disposed on the handle and fixedly connected to the first inner core.

[0013] In an optional embodiment, the endoscopic measuring device further includes a third limiting member movably disposed on the handle and capable of being locked to the handle to limit the maximum angle between the scale and the sheath to between 0 and 90°.

[0014] In an optional embodiment, the end of the handle opposite to the sheath is provided with a finger ring.

[0015] In an optional embodiment, the first limiting member includes a first sleeve, which is interference-fitted with the sheath.

[0016] In an optional embodiment, the second limiting member includes a second sleeve, which is interference-fitted with the first inner core.

[0017] In an optional embodiment, both the first inner core and the second inner core are steel wire rope structures.

[0018] The endoscopic measuring device provided by this invention includes a sheath, a first inner core, a second inner core, and a scale. The first inner core, the second inner core, and the scale are all inserted into the inner cavity of the sheath. One end of the scale is rotatably connected to the first inner core, and the other end is rotatably connected to the second inner core. When the first inner core moves relative to the sheath in a first direction, the first inner core first pushes the scale to move in the first direction and completely pushes the scale out of the sheath from the inner cavity. At this time, the scale also drives the second inner core to move the same distance in the first direction. After the scale moves out of the sheath, the second inner core can be fixed. As the first inner core continues to move, the scale rotates around the hinge point between itself and the second inner core, that is, the angle between the scale and the sheath gradually increases, thus completing the adjustment of the scale position.

[0019] In practical use, taking the measurement of the length of varicose veins in the liver as an example, firstly, the scale is hidden in the sheath, then the sheath is inserted into the designated position of the endoscope, the first inner core is continuously moved along the first direction, and the second inner core is fixed after the scale moves outside the sheath. According to the angle of the endoscope tip and the location of the varicose veins, the angle of the scale is adjusted so that the length direction of the scale is parallel to the length direction of the varicose veins. At this time, the scale can complete the measurement of the varicose veins. The measurement value is highly accurate, and the entire operation of the endoscope measuring device is simpler and more convenient.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the endoscope measuring device provided in an embodiment of the present invention when the scale and the sheath are at a 90° angle.

[0023] Figure 2 for Figure 1 A magnified view of part A in the image;

[0024] Figure 3 This is a partial cross-sectional view of the endoscope measuring device provided in an embodiment of the present invention when the scale is hidden in the sheath.

[0025] Icons: 10-Sheath; 20-First inner core; 30-Second inner core; 40-Moving component; 50-Scale; 60-First limiting component; 70-Second limiting component; 80-Third limiting component; 90-Handle; 110-Slide handle;

[0026] 91-Finger ring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] In the description of this invention, it should be noted that the terms "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Reference Figures 1-3 The endoscopic measuring device provided in this embodiment includes a sheath 10, a first inner core 20, a second inner core 30, and a scale 50. The first inner core 20, the second inner core 30, and the scale 50 are all inserted into the inner cavity of the sheath 10. One end of the scale 50 is rotatably connected to the first inner core 20, and the other end is rotatably connected to the second inner core 30. When the first inner core 20 moves relative to the sheath 10 in a first direction, the first inner core 20 first pushes the scale 50 to move in the first direction and pushes the scale 50 completely out of the sheath 10 from the inner cavity of the sheath 10. At this time, the scale 50 also drives the second inner core 30 to move the same distance in the first direction. After the scale 50 moves out of the sheath 10, the second inner core 30 can be fixed. As the first inner core 20 continues to move, the scale 50 rotates around the hinge point between itself and the second inner core 30, that is, the angle between the scale 50 and the sheath 10 gradually increases, thus completing the adjustment of the position of the scale 50.

[0031] In practical use, taking the measurement of the length of varicose veins in the liver as an example, firstly, the scale 50 is hidden in the sheath 10, then the sheath 10 is inserted into the designated position of the endoscope, the first inner core 20 is continuously moved along the first direction, and the second inner core is fixed after the scale 50 is moved outside the sheath 10. According to the angle of the endoscope tip and the location of the varicose veins, the angle of the scale 50 is adjusted so that the length direction of the scale 50 is parallel to the length direction of the varicose veins. At this time, the scale 50 can complete the measurement of the varicose veins. The measurement value is highly accurate, and the entire operation of the endoscope measuring device is simpler and more convenient.

[0032] It is worth noting that in this embodiment, the sheath 10 is a long, rigid tube, and its shape remains largely unchanged when inserted into the endoscope, ensuring that the first inner core 20 and the second inner core 30 can move smoothly along the first direction. Here, the "first direction" mentioned in this embodiment refers to the direction along the length of the sheath in which the scale is pushed out of the sheath and fixed. Finally, preferably, one end of the scale 50 is rotatably connected to the end of the first inner core 20, and the other end is rotatably connected to the end of the second inner core 30. The operator pushes the scale 50 by manipulating the other end of the first inner core 20.

[0033] It is worth noting that this embodiment also provides a detailed description of the specific structure of the inner diameter measuring instrument.

[0034] In this embodiment, the endoscopic measuring device also includes a movable member 40 inserted into the sheath 10. The movable member 40 is sleeved on the first inner core 20 and fixedly connected to the second inner core 30. The sheath 10 is provided with a first limiting member 60 for restricting the movable member 40 from continuing to move in the first direction. When the movable member 40 moves to the position of the first limiting member 60, the scale 50 is fully extended out of the sheath 10.

[0035] Specifically, when the scale 50 is completely hidden inside the sheath 10, the second inner core is also completely hidden inside the sheath 10. When the first inner core 20 moves along the first direction, the first inner core 20 first pushes the scale 50 to move along the first direction. The scale 50 then drives the second inner core 30 and the moving part 40 to move along the first direction until the moving part 40 abuts against the first limiting part 60. Under the limitation of the moving part 40, the second inner core 30 can no longer move along the first direction (that is, the relative fixation of the second inner core 30 and the sheath 10 is completed). At this time, the scale 50 is also pushed outside the sheath 10, and the first inner core 20 moves forward relative to the moving part 40. Figure 2 As the right end of the middle sheath 10 continues to move, the scale 50 can be used to adjust the angle. This setting automatically fixes the second inner core 30 after the scale 50 is pushed out of the sheath 10, eliminating the need for manual control by the operator, further reducing the number of steps required to operate the endoscope measuring device and lowering the difficulty of operation.

[0036] It is worth noting that the movable part 40 is a hollow cylindrical structure, which can slide inside the sheath 10, and the first inner core 20 can also slide within its cavity. It can be a sleeve, or, as shown in the figure... Figure 3 Alternatively, it can be composed of two interference-fit sleeves. In this case, the sleeve with the smaller outer diameter is longer than the sleeve with the larger outer diameter, which reduces the overall weight of the moving part 40 while further ensuring the guidance of the moving part 40 to the first inner core 20.

[0037] In this embodiment, the first inner core 20 is fixedly connected to the second limiting member 70, and the moving member 40 can restrict the second limiting member 70 from continuing to move along the first direction. When the moving member 40 abuts against the second limiting member 70, the angle between the scale 50 and the sheath 10 is 90°.

[0038] Specifically, as the first inner core 20 moves along the first direction until the moving member 40 just abuts against the first limiting member 60, the scale 50 is pushed outside the sheath 10, and the angle between the scale 50 and the sheath 10 is 0°. As the first inner core 20 continues to move along the first direction until the second limiting member 70 abuts against the moving member 40, the angle between the scale 50 and the sheath 10 is 90°. This setting allows the angle between the scale 50 and the sheath 10 to be within the range of 0-90°. Within this range, the scale 50 can be adjusted to a position parallel to the length direction of the hepatic varicose veins, avoiding excessive rotation of the scale 50 which would affect its rotation and measurement sensitivity.

[0039] In this embodiment, the endoscopic measuring device also includes a handle 90 fixed to the end of the sheath 10.

[0040] Specifically, by controlling the handle 90, the operator can insert the sheath 10 into the endoscope, and at the same time, hold the handle 90 to fix the sheath 10 and the endoscope relative to each other. This allows the first inner core 20 to move relative to the sheath 10 more stably, thus enabling the adjustment of the scale 50 position.

[0041] It is worth noting that in this embodiment, the handle 90 and the sheath 10 can be made of different materials, and in this case, the two can be detachably connected.

[0042] Alternatively, in this embodiment, the handle 90 and the sheath 10 can be made of the same material. In this case, it is preferable to set the handle 90 and the sheath 10 as an integral part.

[0043] In this embodiment, the endoscope measuring device also includes a slide handle 110, which is slidably disposed on the handle 90 and fixedly connected to the end of the first inner core 20 opposite to the scale 50.

[0044] Specifically, in this embodiment, the handle 90 has a hollow structure, and its cavity is connected to the inner cavity of the sheath 10. The side wall of the handle 90 has an opening that is connected to its cavity. The opening is elongated and its length direction is parallel to the length direction of the handle 90. The slide handle 110 is slidably disposed behind the handle 90. The slide handle 110 is fixedly connected to the first inner core 20 of the inner cavity of the sheath 10 through the opening. At this time, as the slide handle 110 slides relative to the handle 90, it can drive the first inner core 20 to move back and forth along the first direction.

[0045] The operator adjusts the movement of the first inner core 20 by manipulating the slider 110, making the movement of the first inner core 20 more sensitive in the first direction. Combined with the auxiliary observation of the endoscope, the scale 50 can more accurately complete the position adjustment.

[0046] It is worth noting that the length of the opening is the maximum stroke of the first inner core 20, ensuring that the scale 50 can be pushed out of the sheath 10 and reach a position at 90° with the sheath 10 under the push of the handle 90. (Refer to...) Figure 1 In this embodiment, a finger ring 91 is provided at the end of the handle 90 away from the sheath tube 10. The finger ring 91 is used to prevent the slide handle 110 from disengaging from the handle 90.

[0047] By setting the finger ring 91, the operator can operate the handle 90 more stably, and effectively avoid the sheath 10 from rotating during the use of the endoscope measuring device, which would affect the position of the scale 50. At the same time, with the long opening length on the handle 90, the finger ring 91 also prevents the slider 110 from disengaging from the handle 90, further limiting the stroke of the slider 110.

[0048] In this embodiment, the endoscopic measuring device also includes a third limiting member 80, which is movably disposed on the handle 90 and can be locked to the handle 90 to limit the maximum angle between the scale 50 and the sheath 10 to between 0 and 90°.

[0049] Before the angle between the scale 50 and the sheath 10 is less than 90°, when the scale 50 is adjusted to the accurate position, the third limiting member 80 can be driven to move in the opposite direction of the first direction relative to the handle 90, so that the third limiting member 80 abuts against the sliding handle 110, thereby ensuring the limiting of the sliding handle 110. With the operator's assistance in fixing it, the scale 50 is fixed in this position, which further ensures the accuracy of the scale 50 in measuring the size of the lesion.

[0050] In this embodiment, the third limiting member 80 is slidably disposed on the handle 90. Specifically, in this embodiment, there is a certain clamping force between the third limiting member 80 and the handle 90. When a certain force is applied to the third limiting member 80, it can push the third limiting member 80 to slide back and forth relative to the handle 90 in the first direction. When the pushing force is removed, the third limiting member 80 can be fixed relative to the handle 90, thus limiting the sliding handle 110.

[0051] Alternatively, in this embodiment, the third limiting member 80 can be a threaded member, which is threadedly connected to the handle 90. By rotating the threaded member on the handle 90, its length direction of the handle 90 can be adjusted, thereby limiting the slide 110.

[0052] Reference Figure 3In this embodiment, the first limiting member 60 includes a first sleeve, which is interference-fitted with the sheath 10.

[0053] Specifically, the inner cavity of the first sleeve can allow the first inner core 20 and the second inner core 30 to pass through simultaneously. At this time, the moving part 40 is preferably a hollow cylindrical structure. The outer diameter of the moving part 40 is larger than the inner diameter of the first sleeve and smaller than the outer diameter of the first sleeve. It can guide the first inner core 20 while not passing through the first sleeve, thus ensuring the limiting of the first inner core 20.

[0054] Alternatively, in this embodiment, the first sleeve and the sheath 10 can be integrally formed, which makes the processing and forming of the sheath 10 more convenient and faster.

[0055] Alternatively, in this embodiment, the first limiting member 60 can be set as a protrusion structure, which can also limit the movement of the moving member 40.

[0056] It is worth noting that in this embodiment, the first sleeve can be disposed in the middle of the inner cavity of the sheath tube 10 or at the end of the sheath tube 10.

[0057] Please continue to refer to Figure 3 In this embodiment, the second limiting member 70 includes a second sleeve, which is interference-fitted with the first inner core 20.

[0058] Specifically, when the movable part 40 is a hollow cylindrical structure, it is only necessary to ensure that the outer diameter of the second sleeve is greater than the inner diameter of the movable part 40 to complete the limiting of the movable part 40 on the second sleeve.

[0059] In this embodiment, both the first inner core 20 and the second inner core 30 are steel wire rope structures.

[0060] Specifically, both the first inner core 20 and the second inner core 30 have a certain diameter. A single first inner core 20 or a single second inner core 30 will not deform under the action of the scale 50 while completing the limiting of the scale 50.

[0061] It is worth noting that in this embodiment, the scale 50, the first inner core 20, and the second inner core 30 can also be set to be strip-shaped structures and parallel to each other. The scale 50 is then pivotally connected to the first inner core 20 and the second inner core 30. In this case, when the first inner core 20 moves along the first direction, the scale 50 can only rotate around the pivot axis at the pivot point where it is pivotally connected to the second inner core 30. That is, while the second inner core 30 is fixed, the rotation direction of the scale 50 is also limited, which further improves the accuracy of the scale 50 adjustment.

[0062] It should be noted that, where there is no conflict, the features in the embodiments of this invention can be combined with each other.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An endoscopic measurer characterized by comprising: The endoscope measurer comprises: a sheath (10); a first inner core (20) inserted into the inner cavity of the sheath (10); a second inner core (30) inserted into the inner cavity of the sheath (10); and a scale (50) inserted into the inner cavity of the sheath (10), one end of the scale (50) being rotatably connected to the first inner core (20), and the other end being rotatably connected to the second inner core (30), the first inner core (20) and the second inner core (30) being capable of moving in the first direction at the same time to push the scale (50) out of the sheath (10), and the first inner core (20) and the second inner core (30) being capable of moving in opposite directions to adjust the angle between the scale (50) and the sheath (10). The endoscope measurer further comprises a moving member (40) inserted into the sheath (10), the moving member (40) being sleeved on the first inner core (20) and being fixedly connected to the second inner core (30), the sheath (10) being provided with a first limiting member (60) for limiting the continuous movement of the moving member (40) in the first direction, and the scale (50) being completely extended out of the sheath (10) when the moving member (40) moves to the first limiting member (60).

2. The endoscopic caliper of claim 1, wherein, The first inner core (20) is fixedly connected with a second limiting member (70), the moving member (40) is capable of limiting the continuous movement of the second limiting member (70) in the first direction, and the angle between the scale (50) and the sheath (10) is 90° when the moving member (40) abuts against the second limiting member (70).

3. The endoscopic caliper of claim 2, wherein, The endoscope measurer further comprises a handle (90) fixedly connected to the end of the sheath (10).

4. The endoscopic caliper of claim 3, wherein, The endoscope measurer further comprises a sliding handle (110) slidably arranged on the handle (90) and fixedly connected to the first inner core (20).

5. The endoscopic caliper of claim 4, wherein, The endoscope measurer further comprises a third limiting member (80) movably arranged on the handle (90) and capable of being locked on the handle (90) to limit the maximum angle between the scale (50) and the sheath (10) to be between 0-90°.

6. Endoscopic measuring device according to any one of claims 3-5, characterized in that The end of the handle (90) away from the sheath (10) is provided with a finger ring (91).

7. The endoscopic caliper of any one of claims 1-5, wherein, The first limiting member (60) comprises a first sleeve in interference fit with the sheath (10).

8. Endoscopic measuring device according to any one of claims 2-5, characterized in that The second limiting member (70) comprises a second sleeve in interference fit with the first inner core (20).

9. The endoscopic caliper of any one of claims 1-5, wherein, The first inner core (20) and the second inner core (30) are both steel wire rope structures.

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